CN110080262B - Water bag ballast water system for sinking pipe - Google Patents
Water bag ballast water system for sinking pipe Download PDFInfo
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- CN110080262B CN110080262B CN201910339865.3A CN201910339865A CN110080262B CN 110080262 B CN110080262 B CN 110080262B CN 201910339865 A CN201910339865 A CN 201910339865A CN 110080262 B CN110080262 B CN 110080262B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 374
- 210000001503 joint Anatomy 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 238000009423 ventilation Methods 0.000 claims abstract description 11
- 238000010408 sweeping Methods 0.000 claims description 24
- 238000005086 pumping Methods 0.000 claims description 19
- 238000009826 distribution Methods 0.000 claims description 12
- 230000002457 bidirectional effect Effects 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 8
- 238000007667 floating Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 14
- 238000009434 installation Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
- E02D23/08—Lowering or sinking caissons
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Pipe Accessories (AREA)
- Revetment (AREA)
Abstract
The invention discloses a water bag ballast water system for sinking immersed tubes, which comprises a plurality of water bag groups, wherein the number of the water bag groups is two; the pipeline unit comprises two main water pipelines, a ventilation pipeline and a plurality of branch water pipelines; the two main water pipelines are symmetrically arranged about the middle line of the immersed tube in the length direction; one end of the water inlet and drain pipeline of the water bag set is connected with the main water pipeline, the other end of the water inlet and drain pipeline of the water bag set is connected with the water bag sets, and each water bag set is provided with a water inlet and drain pipeline of the water bag set; both ends of the ballast pipeline are connected with the main water pipeline, each ballast pipeline is provided with a drainage pump, and hydraulic valves are arranged at the outlet of the drainage pump on the ballast pipeline and at the connecting section of the main water pipeline and the ballast pipeline; the vent pipe is arranged at one side of the butt joint end of the immersed tube, one end of the vent pipe is connected with the end sealing door, the other end of the vent pipe is suspended, and the vent pipe is provided with a stop valve. The invention replaces the traditional construction method, adopts a system with lower input cost and more convenience, and realizes safe, rapid and stable settlement of the pipe joint.
Description
Technical Field
The invention belongs to the technical field of immersed tube tunnel construction. More particularly, the present invention relates to a water bag ballast water system for sinking a immersed tube.
Background
The sinking pipe method is a construction method of building tunnel under water, and mainly includes that firstly, a plurality of prefabricated sinking pipe joints are respectively floated on the sea surface (river surface) site, and then are respectively sunk and installed in a dredged foundation tank. At present, two methods for sinking the immersed tube mainly exist, namely, a sinking ship hoisting method is adopted, namely, sinking of the immersed tube is carried out through a hoisting cable arranged on the sinking ship, meanwhile, installation cables are arranged at four corners of the immersed tube, the other ends of the installation cables are fixed outside a immersed tube base groove in an anchoring manner, and in the sinking process of the immersed tube, anchoring fixed points are used as force points, and the immersed tube is pulled to be positioned through the installation cables. However, this method is liable to cause the sinking position of the sinking pipe to deviate from the predetermined position because the swing of the sinking pipe during the sinking process is not controlled. Therefore, this manner of sinking has been rarely adopted; the second method is widely adopted at present, a plurality of water tanks are arranged in a pipe joint to be sunk, the sunk pipe is sunk by adding water into the water tanks to increase the whole weight of the sunk pipe, the sunk posture of the sunk pipe can be kept only by strictly controlling the water inlet amount of each water tank during sunk, the method can realize efficient and stable sunk of the sunk pipe, but the water tanks are expensive to manufacture, and a plurality of embedded parts are required to be arranged in the sunk pipe, so that the water tanks are not beneficial to manufacture and disassembly of the water tanks.
Disclosure of Invention
The invention aims to provide a water bag ballast water system for sinking a immersed tube, which replaces the traditional construction method, adopts a system with lower input cost and more convenience, and achieves the purposes of safe, rapid and stable sinking of a tube section.
To achieve these objects and other advantages and in accordance with the purpose of the invention, there is provided a water bag ballast water system for sinking a immersed tube, including a water loading unit and a piping unit;
the water filling unit comprises a plurality of water bag groups, the number of the water bag groups is two, each water bag group is formed by connecting two identical water bags through a pipeline, and the water bag groups are symmetrically arranged on two sides of the immersed tube about the central line of the immersed tube in the length direction;
the pipeline unit comprises two main water pipelines, a ventilation pipeline and a plurality of branch water pipelines;
the two main water pipelines are symmetrically arranged about the middle line of the immersed tube in the length direction, and the main water pipelines are provided with hydraulic valves;
the water branch pipeline comprises a water bag group water inlet and outlet pipeline and a ballast pipeline; one end of the water inlet and drain pipeline of the water bag set is connected with the main water pipeline, the other end of the water inlet and drain pipeline of the water bag set is connected with the water bag set, a hydraulic valve is arranged on the water inlet and drain pipeline of the water bag set, and a water inlet and drain pipeline of the water bag set is arranged at each water bag set; the ballast pipelines are in double numbers and are symmetrically arranged about the middle line of the immersed tube in the length direction, two ends of each ballast pipeline are connected with the main water pipeline, each ballast pipeline is provided with a drainage pump, and hydraulic valves are arranged at the outlet of the drainage pump on the ballast pipeline and at the connecting section of the main water pipeline and the ballast pipeline;
the vent pipe is arranged at one side of the butt joint end of the immersed tube, one end of the vent pipe is connected with the end sealing door, the other end of the vent pipe is suspended, and the vent pipe is provided with a stop valve.
Preferably, the main water pipeline is also provided with a manual valve.
Preferably, the water branch pipeline further comprises a cabin sweeping pipeline and a water suction pipeline of the end sealing door;
the end sealing door water pumping pipeline is arranged at one side of the butt joint end of the immersed tube, one end of the end sealing door water pumping pipeline is communicated with the end sealing door combining cavity, and the other end of the end sealing door water pumping pipeline is suspended in the air;
the two groups of the cabin sweeping pipelines are symmetrically arranged in the immersed tube and are close to two corners of the butt joint end, one end of each cabin sweeping pipeline is connected with the cabin sweeping submerged pump, and the other end of each cabin sweeping pipeline is connected with the water inlet and drainage pipeline of the water bag group;
and the end seal door water pumping pipeline and the cabin sweeping pipeline are both provided with manual valves.
Preferably, the main water pipeline, the ventilation pipeline and the plurality of branch water pipelines all adopt rubber hoses.
Preferably, the water bag ballast water system further comprises a measuring unit, wherein the measuring unit comprises a bidirectional flowmeter, a pressure sensor and a float switch;
the water bag sets are provided with two-way flow meters on water inlet and outlet pipelines, pressure sensors are arranged on pipelines between two water bags of each water bag set, and floating ball switches are respectively arranged on two corners of the butt joint end of the immersed tube.
Preferably, the method further comprises:
the main control console is used for sending control instructions and displaying sinking information of the sinking pipe;
the valve control cabinet is positioned in the immersed tube, is in communication connection with the main control console and is electrically connected with the bidirectional flowmeter, the pressure sensor, the floating ball switch and the hydraulic valve;
the pump control cabinet is positioned in the immersed tube, the pump control cabinet is in communication connection with the main control console, and the pump control cabinet is electrically connected with the drainage pump and the cabin sweeping submersible pump.
Preferably, the hydraulic valve arranged on the main water pipeline is an opening electro-hydraulic butterfly valve.
Preferably, the immersed tube further comprises two water bag group fixing parts which are respectively arranged at two sides of the immersed tube, and each water bag group fixing part comprises:
the base is fixed with the bottom plate of the immersed tube, the base is hollow, a plurality of openings are formed in the upper surface of the base, hinged plates are arranged at the positions corresponding to the openings, the number and the set positions of the hinged plates correspond to those of the water bag groups, the first side, close to the middle line in the length direction of the immersed tube, of each hinged plate is hinged with the surface of the base, and the second side of each hinged plate is erected on the upper surface of the base;
the separation net is arranged in the base;
the air bags are arranged on the separation net and are opposite to the hinged plates, the number of the air bags is the same as that of the water bag groups, the first section of the inflated air bags is trapezoid, the first section is parallel to the vertical plane where the width direction of the immersed tube is located, and the upper edge of the first section is inclined downwards from the second side of the hinged plates to the first side and forms an included angle of 15-25 degrees with the horizontal plane; the bottom of the air bag is provided with an air tap;
the framework is arranged around the periphery of the air bag, the bottom of the framework is fixed with the separation net, and the height of the framework is not higher than the top surface of the inner cavity of the base;
the air pump is provided with an air inlet and an air outlet, the air inlet of the air pump is communicated with the inner space of the immersed tube, and the air outlet of the air pump is connected with the air tap of the air bag through an air pipe; the air pipe consists of a main air pipe and an air distribution pipe, the main air pipe is arranged close to the side wall of the immersed pipe along the length direction of the base, one end of the air distribution pipe is connected with the main air pipe, and the other end of the air distribution pipe is connected with an air tap of the air bag;
each water bag in the water bag set is of a cuboid-like structure, a cuboid-like grid is arranged on the outer side of each water bag, the outer side of each water bag is fixed with the grid through a fixing piece, a pipeline for connecting two water bags in the water bag set is located at the lower portion of each water bag and is close to the first side of the hinged plate, and the connecting end of a water bag set water inlet and drainage pipeline and each water bag is located at the lower portion of each water bag and is close to the first side of the hinged plate.
The invention at least comprises the following beneficial effects:
firstly, adopt the water bag to carry out the water storage, the water yield of water bag is carried out the accurate measurement by two-way flowmeter and pressure sensor, has not only reduced the setting of built-in fitting in a large number, has reduced the cost of manual labor volume and water storage device moreover.
And secondly, two main water pipelines are adopted, so that the pipelines are prevented from penetrating through the middle partition wall of the immersed tube, and the construction difficulty of the system is reduced.
Thirdly, adopt the rubber hose as water inlet and drainage pipeline, compare current steel pipe pipeline, can reduce the degree of difficulty of pipeline installation, improve the efficiency of construction.
Fourthly, the safe, quick and stable sinking of the immersed tube is realized, when the immersed tube needs to sink, the opening electro-hydraulic butterfly valve on the main water pipeline and the opening electro-hydraulic butterfly valve on the water bag group water inlet and outlet pipeline are opened, and water can flow into the water bag by means of water head difference, so that the self weight of the immersed tube is increased, and the immersed tube sinks; when the floating pipe joint is needed, opening the opening electrohydraulic butterfly valves on the two sides of the drainage pump and the opening electrohydraulic butterfly valve on the main water pipeline, and opening the drainage pump to drain water in the water bag, so that the dead weight of the pipe joint is reduced, and the sinking pipe floats upwards; the water quantity of the water bag set is accurately measured by a bidirectional flowmeter and a pressure sensor; not only can ensure the adjustable water flow of the water inlet and outlet, but also can close the pipeline under emergency, and fully ensures the stability and safety of sinking of the sinking pipe.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic view showing the construction of a water bag ballast water system for sinking a sinking pipe in example 1;
FIG. 2 is an enlarged view at A in example 1;
FIG. 3 is an enlarged view at B/D in example 1;
FIG. 4 is an enlarged view at C in example 1;
FIG. 5 is an enlarged view at E in example 1;
FIG. 6 is a front view of the water bag set holder of embodiment 2;
FIG. 7 is a left side view of the water bag set holder of embodiment 2.
1-water bag set water inlet and outlet pipeline, 2-water bag set, 21-first small water bag, 22-second small water bag, 3-main water pipeline, 4-cabin sweeping pipeline, 5-end sealing door water pumping pipeline, 6-ventilation pipeline, 7-ballast pipeline, 8-manual valve, 9-opening electrohydraulic butterfly valve, 10-drainage pump, 11-switching electrohydraulic butterfly valve, 12-bidirectional flowmeter, 13-pressure sensor, 14-cabin sweeping submersible pump, 15-floating ball switch, 16-stop valve, 17 base, 18 hinged plate, 19 screen, 20 air bags, 21 air tap, 22 skeleton, 23 electric inflator pump, 24 total air pipe, 25 air distribution pipe, 26 grille and 27 fixing parts.
Detailed Description
The present invention is described in further detail below with reference to examples to enable those skilled in the art to practice the same by referring to the description.
In the description of the present invention, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present invention.
Example 1
As shown in fig. 1 to 5, the present invention provides a water bag ballast water system for sinking a immersed tube, comprising a water filling unit and a pipeline unit;
the water filling unit comprises a plurality of water bag groups 2, wherein the number of the water bag groups 2 is two, each water bag group 2 is provided with two identical water bags, a first small water bag 21 and a second small water bag 22 are respectively arranged as shown in fig. 4, the first small water bag 21 and the second small water bag 22 are connected through pipelines, and the water bag groups 2 are symmetrically arranged on two sides of the immersed tube about the central line of the immersed tube in the length direction; the water filling unit in this embodiment includes six water bag groups 2, each water bag has a size of 15x8x2m, three water bag groups 2 symmetrical about the length centerline of the immersed tube are respectively arranged on two sides of the immersed tube, and three water bag groups 2 on each side are equidistantly arranged along the length centerline of the immersed tube.
The pipeline unit in the embodiment comprises two main water pipelines 3, a ventilation pipeline 6 and a branch water pipeline;
the two main water pipelines 3 are symmetrically arranged about the middle line of the length direction of the immersed tube, the opening electro-hydraulic butterfly valves 9 are arranged on the main water pipelines 3, water inflow on the main water pipelines 3 can be controlled, one ends of the main water pipelines penetrate out of the non-butt joint ends of the immersed tube, and the two main water pipelines 3 are arranged to prevent the pipelines from penetrating through the middle partition wall of the immersed tube, so that the construction difficulty of the system is reduced.
The water branch pipeline in the embodiment comprises six water bag group water inlet and outlet pipelines 1 and two ballast pipelines 7; one end of the water inlet and drain pipeline 1 of the water bag set is connected with the main water pipeline 3, the other end of the water inlet and drain pipeline 1 of the water bag set is connected with the water bag sets 2, the water bag sets 1 are provided with switch electrohydraulic butterfly valves for controlling water to flow into the water bags, and each water bag set 2 is provided with a water bag set water inlet and drain pipeline 1; the ballast pipelines 7 are of double numbers and are closedThe middle line in the length direction of the immersed tube is symmetrically arranged at one side of the butt joint end of the immersed tube, two ends of the ballast pipeline 7 are connected with the main water pipeline 3, each ballast pipeline 7 is provided with a drainage pump 10, and in the embodiment, the flow rate of the two drainage pumps 10 is 150m 3 And/h, the lift is 40m. The switch electrohydraulic butterfly valve is arranged at the outlet of the draining pump 10 on the ballast pipeline 7 and at the connecting section of the main water pipeline 3 and the ballast pipeline 7.
The vent line 6 is installed in the one side of immersed tube butt joint end, and its one end is connected and is sealed end door, and its other end is unsettled, be provided with stop valve 16 on the vent line 6, vent line 6 is used for making immersed tube butt joint end joint chamber open to the atmosphere, prevents to combine the intracavity to have negative pressure, causes the problem of the water that does not take out the joint chamber. The immersed tube butt joint end combining cavity means that a combining cavity is formed between two immersed tubes after the two immersed tubes are connected, the combining cavity and the cavity of the immersed tube are independent, in order to ensure that the combining cavity is communicated with atmosphere, an air pipeline is specially arranged, the immersed tubes in the prior art are all provided with manholes, and the manholes are directly communicated with the water surface, so that the inside of the immersed tube is communicated with the atmosphere.
Further, a manual valve 8 is further arranged on the main water pipeline 3, the manual valve 8 and an opening electro-hydraulic butterfly valve 9 are in a redundant design, and the manual hydraulic valve is in a normally open state and is used for closing the pipeline in an emergency.
Further, the water branch pipeline also comprises two cabin sweeping pipelines 4 and a water suction pipeline 5 with a sealing door;
the end sealing door water pumping pipeline 5 is arranged on one side of the butt joint end of the immersed tube, one end of the end sealing door water pumping pipeline is communicated with the end sealing door combining cavity, the other end of the end sealing door water pumping pipeline is suspended so as to be connected with the main water pipeline, a standby pump can be arranged in the immersed tube, after the immersed tube is in butt joint, the butt joint end of the immersed tube can form the combining cavity, the combining cavity is filled with water, two schemes are adopted for pumping water through the water pumping pipeline, one scheme is that the water pumping pipeline is connected with the standby pump and is connected with the main water pipeline, at the moment, a manual valve on the end sealing door water pumping pipeline is opened, a switching electro-hydraulic butterfly valve on a water inlet pipeline and a water outlet pipeline of a water bag needing to be filled with water is opened, a stop valve on the air pipe pipeline is opened, water in the combining cavity can automatically flow into a part of the water bag due to water head difference, and then the standby pump is started, and the water remained in the combining cavity is pumped into the water bag. The other scheme is that the water pumping pipeline is directly connected with the main water pipeline, and the water in the combining cavity is directly discharged into the river through the drainage pump.
The two groups of the cabin sweeping pipelines 4 are symmetrically arranged in the immersed tube and are close to two corners of the butt joint end, one end of the cabin sweeping pipeline 4 is connected with the cabin sweeping submersible pump 14, and the other end of the cabin sweeping pipeline 4 is connected with the water bag group water inlet and drainage pipeline 1; in the sinking process of the immersed tube, when water leakage occurs in the immersed tube, the corresponding cabin sweeping submersible pump 14 is started, and water in the immersed tube is pumped into the water bag set 2.
And manual valves 8 are arranged on the end-sealing door water pumping pipeline 5 and the cabin sweeping pipeline 4.
In this embodiment, the main water pipeline 3, the ventilation pipeline 6 and the branch water pipeline all adopt rubber hoses.
Further, the water bag ballast water system also comprises a measuring unit, wherein the measuring unit comprises a bidirectional flowmeter 12, a pressure sensor 13 and a float switch 15;
the water inlet and drainage pipeline 1 of the water bag sets is provided with a bidirectional flowmeter 12, the bidirectional flowmeter 12 is used for detecting water inflow of water bags, a pipeline between two water bags of each water bag set 2 is provided with a pressure sensor 13, the pressure sensor 13 is used for detecting water pressure in the water bags, therefore, the water bags can store water safely, two corners of the butt joint end of the immersed tube are respectively provided with a float switch 15, and the float switches 15 are used for detecting whether the immersed tube leaks or not.
Further, the method further comprises the following steps:
the main control console is used for sending control instructions and displaying sinking pipe sinking information fed back by the valve control cabinet and the pumping cabinet;
the valve control cabinet is positioned in the immersed tube, is in communication connection with the main control console and is electrically connected with the bidirectional flowmeter 12, the pressure sensor 13, the float switch 15 and the hydraulic valve.
The pump control cabinet is located in the immersed tube, and is in communication connection with the main control console, and is electrically connected with the drainage pump 10 and the cabin sweeping submersible pump 14.
In the implementation process of the embodiment, the following steps are adopted: when the immersed tube needs to sink, firstly opening the opening electro-hydraulic butterfly valves 9 on the two main water pipelines 3 and the opening electro-hydraulic butterfly valves on the main water pipelines 3, and due to the water head difference, river water automatically flows into the main water pipelines 3, and then opening the opening electro-hydraulic butterfly valves on the water inlet and outlet pipelines 1 of the water bag group needing to be beside the water inlet bag group 2, so that the river water can be controlled to flow into corresponding water bags, and thus the self weight of the immersed tube is increased, and simultaneously, the water flow entering each water bag is controlled to adjust the posture of the immersed tube, so that the immersed tube stably sinks. The speed of inflow water is controlled by an opening electro-hydraulic butterfly valve 9, the water quantity flowing into each water bag group 2 is measured by a bidirectional flowmeter 12 on a water bag group water inlet and outlet pipeline 1 of each water bag group 2, and meanwhile, a pressure sensor 13 detects the water pressure in the water bag group 2, so that the water bags are further prevented from being exploded due to excessive water storage. When the water inlet of the water bag group 2 meets the requirement, the switch electro-hydraulic butterfly valve on the water inlet and drainage pipeline 1 of the water bag group beside the corresponding water bag group 2 is closed. And after the water inflow of all the water bag groups 2 is finished, closing the opening electro-hydraulic butterfly valves 9 on the two main water pipelines 3 and the opening electro-hydraulic butterfly valves on the main water pipelines 3 connected with the drain pipe.
When the floating pipe joint is required to be lifted or sunk in place for drainage, the opening electro-hydraulic butterfly valves 9 on the two main water pipelines 3 are opened first, the switching electro-hydraulic butterfly valves on the ballast pipelines 7 are started again, the two drainage pumps 10 are started again, then the switching electro-hydraulic butterfly valves on the water inlet and drainage pipelines 1 of the water bag groups to be drained beside the water bag groups 2 are opened, each water bag group 2 can be controlled to drain, the speed of water drainage is controlled by the opening electro-hydraulic butterfly valves 9, the water quantity of each water bag group 2 is measured by the two-way flowmeter 12 on the water bag group water inlet and drainage pipeline 1 of each water bag group 2, and therefore the water purification quantity in the water bag groups 2 is indirectly obtained. When the water drainage of the water bag group 2 meets the requirement, the switch electro-hydraulic butterfly valve on the water inlet and outlet pipeline beside the corresponding water bag group 2 is closed. And stopping the drainage pump 10 after the drainage of all the water bag groups 2 is finished, and finally closing the on-off electrohydraulic butterfly valves on the ballast pipelines 7 and opening electrohydraulic butterfly valves 9 on the two main water pipelines 3.
In the sinking process of the sinking pipe, when the float switch 15 detects that the sinking pipe leaks water, the corresponding cabin sweeping submersible pump 14 is started to pump the water in the sinking pipe into the water bag set 2.
Example 2
As shown in fig. 6 to 7, on the basis of embodiment 1, two water bag set fixing members are further included, and are respectively disposed at two sides of the immersed tube, the water bag set fixing members include:
the base 17 is fixed with the bottom plate of the immersed tube, the base 17 is hollow, a plurality of openings are formed in the upper surface of the base 17, hinge plates 18 are arranged at the positions corresponding to the openings, the number and the set positions of the hinge plates 18 correspond to those of the water bag group 2, a first side, close to the middle line in the length direction of the immersed tube, of the hinge plates 18 is hinged with the surface of the base 17, and a second side of the hinge plates 18 is erected on the upper surface of the base 17;
a screen 19 provided inside the base 17;
the air bags 20 are made of rubber, the air bags 20 are arranged on the separation net 19 and are opposite to the hinged plates 18, the number of the air bags 20 is the same as that of the water bag groups 2, a first section of the inflated air bags 20 is trapezoid, the first section is parallel to a vertical plane where the width direction of the immersed tube is located, and the upper edge of the first section is inclined downwards from the second side of the hinged plates 18 to the first side and forms an included angle of 15-25 degrees with the horizontal plane; the bottom of the air bag 20 is provided with an air tap 21;
the framework 22 is arranged around the periphery of the air bag 20, the bottom of the framework 22 is fixed with the separation net 19, and the height of the framework 22 is not higher than the top surface of the inner cavity of the base 17;
the electric inflator 23, the electric inflator 23 is connected with the pump control cabinet electrically, the electric inflator 23 is provided with an air inlet and an air outlet, the air inlet of the electric inflator 23 is communicated with the inner space of the immersed tube, and the air outlet of the electric inflator 23 is connected with the air tap 21 of the air bag 20 through an air pipe which is a rubber hose; the air pipe is composed of a main air pipe 24 and an air distribution pipe 25, the main air pipe 24 is arranged along the length direction of the base 17 and close to the side wall of the immersed tube, one end of the air distribution pipe 25 is connected with the main air pipe 24, the other end of the air distribution pipe is connected with the air tap 21 of the air bag 20, each air distribution pipe 25 is provided with an on-off electrohydraulic butterfly valve, and the on-off electrohydraulic butterfly valves on the air distribution pipes 25 are electrically connected with a valve control cabinet and controlled by instructions sent by a main control console.
Each water bag in the water bag set 2 is of a cuboid-like structure, a cuboid-shaped grid 26 is arranged on the outer periphery of each water bag, the outer sides of the water bags are fixed with the grid 26 through fixing pieces 27 (can be viscose, hidden buckles and the like) so that the water bags can be shaped when not filled with water, a pipeline for connecting the two water bags in the water bag set 2 is positioned at the lower part of each water bag and is close to the first side of the hinged plate 18, and the connecting end of the water bag set water inlet and outlet pipeline 1 and each water bag is positioned at the lower part of each water bag and is close to the first side of the hinged plate 18.
The working process of the water bag set fixing piece comprises the following steps: when the water purifying amount in the water bag set 2 is lower than the set value of the main control console, the main control console sends instructions to the pump control cabinet and the valve control cabinet, the switch electro-hydraulic butterfly valve corresponding to the water bag set 2 with the water purifying amount lower than the set value is respectively opened, the electric inflator 23 inflates the air bag 20 below the corresponding water bag set 2, the inflated air bag 20 pushes the hinged plate 18 upwards, the water bag inclines along with the hinged plate 18, water in the water bag is converged towards the first side of the hinged plate 18, water in the water bag is conveniently and completely pumped out in the later period, and water residues in the water bag are reduced.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown, it is well suited to various fields of use for which the invention is suited, and further modifications may be readily made by one skilled in the art, and the invention is therefore not to be limited to the particular details and examples shown and described herein, without departing from the general concepts defined by the claims and the equivalents thereof.
Claims (7)
1. A water bag ballast water system for sinking a sinking pipe, which is characterized by comprising a water filling unit and a pipeline unit;
the water filling unit comprises a plurality of water bag groups, the number of the water bag groups is two, each water bag group is formed by connecting two identical water bags through a pipeline, and the water bag groups are symmetrically arranged on two sides of the immersed tube about the central line of the immersed tube in the length direction;
the pipeline unit comprises two main water pipelines, a ventilation pipeline and a plurality of branch water pipelines;
the two main water pipelines are symmetrically arranged about the middle line of the immersed tube in the length direction, and the main water pipelines are provided with hydraulic valves;
the water branch pipeline comprises a water bag group water inlet and outlet pipeline and a ballast pipeline; one end of the water inlet and drain pipeline of the water bag set is connected with the main water pipeline, the other end of the water inlet and drain pipeline of the water bag set is connected with the water bag set, a hydraulic valve is arranged on the water inlet and drain pipeline of the water bag set, and a water inlet and drain pipeline of the water bag set is arranged at each water bag set; the ballast pipelines are in double numbers and are symmetrically arranged about the middle line of the immersed tube in the length direction, two ends of each ballast pipeline are connected with the main water pipeline, each ballast pipeline is provided with a drainage pump, and hydraulic valves are arranged at the outlet of the drainage pump on the ballast pipeline and at the connecting section of the main water pipeline and the ballast pipeline;
the ventilation pipeline is arranged at one side of the butt joint end of the immersed tube, one end of the ventilation pipeline is connected with the end sealing door, the other end of the ventilation pipeline is suspended, and the ventilation pipeline is provided with a stop valve;
still include two sets of water bag group's mountings, set up respectively in the both sides of immersed tube, water bag group's mountings include:
the base is fixed with the bottom plate of the immersed tube, the base is hollow, a plurality of openings are formed in the upper surface of the base, hinged plates are arranged at the positions corresponding to the openings, the number and the set positions of the hinged plates correspond to those of the water bag groups, the first side, close to the middle line in the length direction of the immersed tube, of each hinged plate is hinged with the surface of the base, and the second side of each hinged plate is erected on the upper surface of the base;
the separation net is arranged in the base;
the air bags are arranged on the separation net and are opposite to the hinged plates, the number of the air bags is the same as that of the water bag groups, the first sections of the inflated air bags are trapezoid, the first sections are parallel to the vertical plane where the width direction of the immersed tube is located, and the upper edges of the first sections are inclined downwards from the second side of the hinged plates to the first side and form included angles of 15-25 degrees with the horizontal plane; the bottom of the air bag is provided with an air tap;
the framework is arranged around the periphery of the air bag, the bottom of the framework is fixed with the separation net, and the height of the framework is not higher than the top surface of the inner cavity of the base;
the air pump is provided with an air inlet and an air outlet, the air inlet of the air pump is communicated with the inner space of the immersed tube, and the air outlet of the air pump is connected with the air tap of the air bag through an air pipe; the air pipe consists of a main air pipe and an air distribution pipe, the main air pipe is arranged close to the side wall of the immersed pipe along the length direction of the base, one end of the air distribution pipe is connected with the main air pipe, and the other end of the air distribution pipe is connected with an air tap of the air bag;
each water bag in the water bag set is of a cuboid-like structure, a cuboid-like grid is arranged on the outer side of each water bag, the outer side of each water bag is fixed with the grid through a fixing piece, a pipeline for connecting two water bags in the water bag set is located at the lower portion of each water bag and is close to the first side of the hinged plate, and the connecting end of a water bag set water inlet and drainage pipeline and each water bag is located at the lower portion of each water bag and is close to the first side of the hinged plate.
2. The water bag ballast water system for sinking pipe sinking according to claim 1, wherein a manual valve is further provided on the main water line.
3. A water bag ballast water system for sinking a tube according to claim 1 or 2, wherein said water branch line further comprises a pan line and a gate-end water suction line;
the end-capped door water pumping pipeline is arranged at one side of the butt joint end of the immersed tube, one end of the end-capped door water pumping pipeline is communicated with the end-capped door combining cavity, and the other end of the end-capped door water pumping pipeline is suspended;
the two groups of the cabin sweeping pipelines are symmetrically arranged in the immersed tube and are close to two corners of the butt joint end, one end of each cabin sweeping pipeline is connected with the cabin sweeping submerged pump, and the other end of each cabin sweeping pipeline is connected with the water inlet and drainage pipeline of the water bag group;
and the end-capped door water pumping pipeline and the cabin sweeping pipeline are both provided with manual valves.
4. A water bag ballast water system for sinking a tube according to claim 3, wherein said main water line, said vent line and said plurality of branch water lines are all rubber hoses.
5. A water bag ballast water system for sinking a tube as claimed in claim 3, wherein said water bag ballast water system further comprises a measuring unit comprising a bi-directional flow meter, a pressure sensor and a float switch;
the water bag sets are provided with two-way flow meters on water inlet and outlet pipelines, pressure sensors are arranged on pipelines between two water bags of each water bag set, and floating ball switches are respectively arranged on two corners of the butt joint end of the immersed tube.
6. The water bag ballast water system for sinking a tube as defined in claim 5, further comprising:
the main control console is used for sending control instructions and displaying sinking information of the sinking pipe;
the valve control cabinet is positioned in the immersed tube, is in communication connection with the main control console and is electrically connected with the bidirectional flowmeter, the pressure sensor, the floating ball switch and the hydraulic valve;
the pump control cabinet is positioned in the immersed tube, the pump control cabinet is in communication connection with the main control console, and the pump control cabinet is electrically connected with the drainage pump and the cabin sweeping submersible pump.
7. The ballast water system for a immersed tube as claimed in claim 1, wherein the hydraulic valve provided on the main water line is an opening electro-hydraulic butterfly valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910339865.3A CN110080262B (en) | 2019-04-25 | 2019-04-25 | Water bag ballast water system for sinking pipe |
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| CN201910339865.3A CN110080262B (en) | 2019-04-25 | 2019-04-25 | Water bag ballast water system for sinking pipe |
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| CN110080262B true CN110080262B (en) | 2023-11-21 |
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| CN111648406B (en) * | 2020-07-03 | 2021-07-23 | 中交第四航务工程局有限公司 | Construction method for dismantling immersed tube ballast system and replacing concrete |
| CN112923241A (en) * | 2021-01-25 | 2021-06-08 | 交通运输部广州打捞局 | Ballast pipeline system |
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