CN112878360B - Steel structure combined retaining wall and construction method thereof - Google Patents
Steel structure combined retaining wall and construction method thereof Download PDFInfo
- Publication number
- CN112878360B CN112878360B CN202110271375.1A CN202110271375A CN112878360B CN 112878360 B CN112878360 B CN 112878360B CN 202110271375 A CN202110271375 A CN 202110271375A CN 112878360 B CN112878360 B CN 112878360B
- Authority
- CN
- China
- Prior art keywords
- retaining wall
- beams
- upright post
- rope
- bottom beam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 35
- 239000010959 steel Substances 0.000 title claims abstract description 35
- 238000010276 construction Methods 0.000 title claims abstract description 19
- 239000004575 stone Substances 0.000 claims abstract description 11
- 239000004567 concrete Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000005260 corrosion Methods 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 7
- 230000007480 spreading Effects 0.000 claims description 6
- 238000003892 spreading Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 238000011835 investigation Methods 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 239000011150 reinforced concrete Substances 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 abstract 1
- 239000002689 soil Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
- E02D29/0233—Retaining or protecting walls comprising retention means in the backfill the retention means being anchors
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0258—Retaining or protecting walls characterised by constructional features
- E02D29/0266—Retaining or protecting walls characterised by constructional features made up of preformed elements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- 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)
- Revetment (AREA)
Abstract
The invention relates to the technical field of geotechnical engineering slope support, in particular to a steel structure combined retaining wall and a construction method thereof. The retaining wall unit mainly comprises a bottom plate device, a stand column device, a stand plate device and a diagonal device; the bottom plate device comprises a bottom beam, one end of the bottom beam is provided with a beam hole which is convenient to connect with the upright post device, the inner side of the beam hole is provided with a positioning bolt which is convenient to connect with the upright plate device, the upper surface and the lower surface of the bottom beam are also provided with a plurality of tenons fixedly connected with the tenons, the tenons are positioned in the same plane, a flexible net is arranged between the bottom beams of the adjacent retaining wall units, and two sides of the flexible net are respectively fixed on tenons on the upper surfaces of the adjacent bottom beams. The technical scheme is used for solving the problems that the construction period of the retaining wall mainly comprising concrete, reinforced concrete and slurry block (sheet) stones in the prior art is long and the retaining wall cannot be applied to emergency rescue.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering slope support, in particular to a steel structure combined retaining wall and a construction method thereof.
Background
Along with the rapid development of society, the more outstanding the slope management problem in the infrastructure construction process, in addition, the influence of extremely abnormal climate, continuous rainfall and the like, geological disasters frequently occur, different supporting measures are taken aiming at different geological conditions, and the retaining wall plays an important role in the slope management. The retaining wall is a structure capable of resisting lateral soil pressure, preventing soil deformation and instability and guaranteeing stability of slopes or backfill soil, is widely applied to the prevention and treatment of roads, railways, bridges and ground disasters, and has various types. The retaining wall of various types is mainly made of concrete, reinforced concrete and serosity block (stone) and has firm structure and good durability, but has a great problem that the retaining wall is long in construction period and difficult to be applied under the condition that effects are required to be generated quickly in some emergency rescue.
Nowadays, steel structures have been greatly developed, and the steel has the characteristics of high strength, light dead weight, good overall rigidity and strong deformability, and the steel structures are widely applied to the aspects of house buildings, highways, railways, bridges, houses and the like at present, but the steel structures are rarely applied to the field of geotechnical engineering and geological disaster prevention.
Disclosure of Invention
Aiming at the defects of the technology, the invention aims to provide a steel structure combined retaining wall and a construction method thereof, which solve the problems that the construction period of the retaining wall mainly comprising concrete, reinforced concrete and grouted block stones in the prior art is long and the retaining wall cannot be applied to emergency rescue.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the steel structure combined retaining wall comprises a plurality of retaining wall units which are combined with one another, wherein each retaining wall unit mainly comprises a bottom plate device, a stand column device, a stand plate device and a diagonal device;
the bottom plate device comprises a bottom beam, one end part of the bottom beam is provided with a beam hole which is convenient to connect with the upright post device, the inner side of the beam hole is provided with a positioning bolt which is convenient to connect with the upright post device, the upper surface and the lower surface of the bottom beam are also provided with a plurality of tenons fixedly connected with the bottom beam, the tenons are positioned in the same plane, a flexible net is arranged between the bottom beams of adjacent retaining wall units, and two sides of the flexible net are respectively fixed on tenons on the upper surfaces of the adjacent bottom beams;
The upright post device comprises an upright post, one end of the upright post is provided with a post hole corresponding to the beam hole, connecting rods are arranged in the upright post and the bottom beam, the two ends of each connecting rod are used for fixing the upright post and the bottom beam through connecting nuts, and the middle upper part of the outer side of the upright post is provided with a guide rope bolt which is convenient to connect with the inclined pulling device;
The vertical plate device comprises a vertical plate, wherein the vertical plate is positioned between an upright post and a positioning bolt, 4 cantilever bolts which are in rectangular distribution are arranged on the outer side surface of the vertical plate device, cantilever beams are arranged between two adjacent vertical plates which are horizontally arranged, the cantilever beams are positioned in the cantilever bolts, and a rope guide hole which is convenient to connect with a diagonal device is further formed in the vertical plate;
The inclined pulling device comprises an inclined pulling rope, one end of the inclined pulling rope is fixed on the rope guiding bolt, and the other end of the inclined pulling rope penetrates through the rope guiding hole to be fixedly connected to the bottom beam.
Further limiting, 3 groups of limiting rods are arranged on the bottom beam, anti-slip keys are arranged in two limiting rods far away from the upright posts, and the top ends of the anti-slip keys are flush with the bottom surface of the bottom beam.
Further limited, the flexible net is the protection network, the mesh of protection network passes the upper portion tenon shop of sill at the upper portion of bottom plate device, the terminal of protection network exceeds the sill terminal and is not less than 50cm, the below of protection network is equipped with 20cm thick sand pebble layer, and its beneficial lies in that can adopt the protection network that breaks and old, not only reduces manufacturing cost, and raw and other materials easily obtain, and the terminal purpose that surpasss the sill terminal is in, avoids too much earth to get into the inside of sand pebble layer, blocks up the clearance in the sand pebble layer, leads to the infiltration drainage ability of sand pebble layer to reduce.
Further limited, the riser is the steel sheet, and all is equipped with right angle breach in the four corners department of riser, and its beneficial lies in, right angle breach can regard as the wash port to use, discharges the moisture in the side slope earth.
Further limited, both ends of cantilever beam all are equipped with the crotch, and its beneficial lies in that, the setting of crotch can avoid cantilever beam to slide in the cantilever bolt and deviate from, reinforcing cantilever beam to the connection limiting performance of adjacent riser.
The invention also discloses a construction method of the steel structure combined retaining wall, which mainly comprises the following steps:
(1) Each component of the prefabricated or cut combined retaining wall in a factory is purchased in the market, and is subjected to anti-corrosion treatment, wherein the anti-corrosion treatment comprises a bottom plate device, a stand column device, a vertical plate device and a diagonal pulling device, and the anti-corrosion treatment is carried to a construction site warehouse for standby;
(2) Performing stepping investigation on an area needing to be provided with a backfill retaining wall, determining the position for arranging the retaining wall, and leveling the position for arranging the retaining wall;
(3) Adopting lime lines to outline the approximate positions of structures such as a bottom beam, an upright post and the like, excavating a foundation at the positions corresponding to the foundation and the anti-skid key of the upright post, wherein the periphery of the foundation is 5cm larger than the length and the width of the upright post and the anti-skid key respectively;
(4) 2 bottom beams are arranged at corresponding positions on the ground, the limiting rods are opposite and vertical, and tenons at the bottoms of the bottom beams are inserted below the ground;
(5) The upright posts penetrate through the first limit rods in the front of the bottom beams, a foundation is inserted between the limit rods, the connecting rods penetrate through column holes of the upright posts of the bottom beams Liang Kongji, nuts are used for fastening the two sides of the upright posts, and the foundation is filled with C20 concrete;
(6) 2 anti-slip keys respectively penetrate through the space between the second position and the third position limiting rod and are inserted into the foundation, the tops of the anti-slip keys are flush with the tops of the bottom beams, and the foundation is filled with C20 concrete; the oblique stay cord bypasses the last anti-slip key from the bottom of the bottom beams and passes through the space between the two bottom beams, and the two sides are arranged in equal length.
(7) Repeating the steps (4) to (6) until the bottom beams and the upright posts of the first-stage combined retaining wall are installed;
(8) Spreading a sand pebble layer with the thickness of 20cm on the bottom beam area, and then spreading a flexible net;
(9) A vertical plate is arranged between the positioning bolt and the vertical column, so that the vertical column is positioned in the middle of the vertical plate;
(10) The inner side of the vertical plate is reserved with a diagonal rope, the diagonal rope penetrates through the vertical plate to reserve a rope guide hole, then penetrates through the vertical column rope guide bolt, and is fastened on the outer side of the vertical plate by adopting a buckle after being tensioned;
(11) The cantilever beams are put into cantilever bolts between the adjacent vertical plates, and the adjacent vertical plates are connected by adopting upper and lower cantilever beams under the action similar to a door bolt;
(12) The method comprises the steps of (1) backfilling the earth and stone at the rear part of a first-stage combined retaining wall, tamping, compacting, and then assembling a second-stage combined retaining wall;
(13) The top end of a bottom beam of the second-stage combined retaining wall is propped against the rear surface of a vertical plate of the first-stage retaining wall, and the top of the bottom beam is flush with the top surface of a vertical column of the first-stage retaining wall;
(14) Repeating the steps (3) to (14) until the whole combined retaining wall is assembled.
Further limited, the tamping degree of the backfill stone in the step (12) is not less than 85%, which is beneficial in that the tamping degree of the backfill stone is larger, so that the compacting and fixing effects of the backfill stone on the combined retaining wall unit are better, and the blocking and protecting capability of the combined retaining wall is further enhanced.
The invention has the following technical effects: (1) The single combined structure self-forming system forms a single-stage retaining wall through the combination of a plurality of combined retaining walls in the horizontal direction, the back of the wall is filled with earth and stones, then the multi-stage wall retaining walls are assembled in the vertical direction in sequence, and the retaining width and the height of the retaining wall can be adjusted through the combination of the horizontal and vertical directions.
(2) The bottom plate device of the combined retaining wall is provided with an anti-slip key, tenons and the like, so that the anti-slip retaining wall can play a role in retaining soil, the inclined pulling device can effectively restrict the deformation and overturning of the upright post and the vertical plate device under the lateral force, and the bottom flexible net plays a role in resisting slip and overturning of the combined retaining wall through the connection acting force between the bottom flexible net and the tenons under the action of the soil pressure on the upper part.
(3) The steel structure combined retaining wall not only reduces excavation of a foundation and saves space, but also is rapid to assemble, has the advantages of convenience in construction, simplicity in operation, strong adaptability and the like, and can be well applied to emergency rescue engineering.
Drawings
Fig. 1 is a cross-sectional view of a single retaining wall unit in this embodiment;
Fig. 2 is a schematic view of an elevation arrangement of a composite retaining wall according to the present embodiment.
Fig. 3 is a schematic elevation sectional view of a composite retaining wall according to this embodiment.
Fig. 4 is an enlarged partial schematic view of fig. 2a according to the present embodiment.
Reference numerals of the drawings
1. The bottom plate device, 11, the bottom beam, 12, the beam hole, 13, the limit rod, 14, the locating bolt, 15, the anti-slip key, 16, the tenons and 17 flexible net; 2. the upright post device comprises an upright post device 21, an upright post 22, a rope guide bolt 23, a post hole 24 and a connecting rod; 3. the vertical plate device 31, the vertical plate 32, the rope guide holes 33, the cantilever bolts 34 and the cantilever beams; 4. and the cable-stayed device 41 and the cable-stayed rope.
Detailed Description
The following is a further detailed description of the embodiments:
As shown in fig. 1 to 4, a steel structure combined retaining wall is formed by combining a plurality of retaining wall units, has a short manufacturing period, can play a great role in emergency rescue, and specifically comprises four parts, namely a bottom plate device 1, a column device 2, a vertical plate device 3 and a cable-stayed device 4, wherein the bottom plate device 1 specifically comprises a bottom beam 11, a beam hole 12, a limiting rod 13, a positioning bolt 14, an anti-slip key 15, tenons 16 and a protective net. The bottom beam 11 is a rectangular tube of 200×150X4 length of 2.5m, one end is set as the starting point, the beam hole 12 is arranged in the middle of the tube height at a distance of 40cm from the starting point, and the aperture is 40mm. The limiting rods 13 are 20 steel bars with the length of 200mm, are arranged at three positions (29 cm, 51 cm), (119 cm, 141 cm), (179 cm and 201 cm) away from the starting point of the bottom beam 11, and are welded with the limiting rods 13 of 116 single bottom beams. The positioning bolts 14 are 32 steel bars with the length of 100mm, are arranged on the upper part of the bottom beam 11 and are welded at the position 58cm away from the starting point. The anti-slip key 15 is made of 20A-shaped I-steel, the length is 50cm, the anti-slip key 15 is arranged between the two limit rods 13 at the middle and rear parts of the bottom beam 11, and the top of the anti-slip key is flush with the bottom of the bottom beam 11. The tenons 16 are 20 steel bars, 50mm in length and welded on the upper and lower surfaces of the bottom beam 11 at unequal intervals. The flexible net 17 can be a protective net, and the net holes are paved on the upper part of the bottom plate device 1 through tenons 16 on the upper part of the bottom beam 11, and the starting point is from the starting point to the vertical plate device 3, and the tail end of the net is not less than 50cm beyond the tail end of the bottom beam 11.
The upright post device 2 specifically comprises an upright post 21, a rope guide bolt 22, a connecting rod 24 and a connecting nut, wherein the upright post 21 is made of 20A-shaped I-steel, the length is 2.5m, and a post hole 23 is arranged at the middle part of the bottom end at a position with a distance of 40cm, and the aperture is 40mm. The guide rope bolt 22 adopts 20 steel bars, the length is 9cm, the guide rope bolt is bent into a semicircle, and the guide rope bolt is welded on the outer side of the upright post 21 and is 75cm away from the top of the upright post 21. The connecting rod 24 adopts 32 steel bars, the length is 40cm, and threads with the length not less than 6cm are reserved on two sides. The coupling nut adopts a steel prefabricated structure, and the bottom beam 11 and the upright post 21 are fixedly coupled through the coupling rod 24.
The vertical plate device 3 comprises a vertical plate 31, a rope guiding hole 32, a cantilever bolt 33 and a cantilever beam 34, wherein the vertical plate 31 is made of a 6mm thick steel plate, is cut into a shape with the width of 2.5m and the height of 2.0m, and is provided with right-angle notches with the length of 5cm at four corners, and is used as a water draining hole after being assembled. The rope guide holes 32 are reserved in the steel plate, are transversely positioned at 10cm respectively on two sides of the middle of the vertical plate 31, are longitudinally positioned at 90cm downwards from the top, and are inclined at 45 degrees from outside to inside. The number of the single plates of the cantilever bolts 33 is 4, the single plates are transversely positioned at 75cm respectively on two sides of the middle of the vertical plate 31, the positions of 100cm and 150cm downwards from the top in the longitudinal direction are vertically welded at right angles by adopting the reinforcing steel bars with the length of 32 of 15cm, and the vertical positions are 5cm and 10cm. The cantilever beam 34 adopts 32 steel bars, the length is 104cm, hooks at two sides are 10cm respectively, and the cantilever beam is used for connecting the horizontally adjacent vertical plates 31.
The diagonal tension device 4 comprises a diagonal tension rope 41, the diagonal tension rope 41 adopts a flexible pipe steel wire rope sleeved outside, the length is 6.0m, one end of the diagonal tension rope 41 is fixed on the guide rope bolt 22, and the other end of the diagonal tension rope 41 penetrates through the guide rope hole 32 to be fixedly connected to the bottom beam 11 for connecting the upright post 21, the vertical plate device 3 and the bottom beam 11.
The embodiment also comprises a construction method of the steel structure combined retaining wall, which mainly comprises the following steps:
(1) Each component of the prefabricated or cut combined retaining wall in a factory is purchased in the market, and is subjected to anti-corrosion treatment, wherein the anti-corrosion treatment comprises a bottom plate device, a stand column device 2, a stand plate device 3 and a diagonal tension device 4, and is transported to a construction site warehouse for standby;
(2) Performing stepping investigation on an area needing to be provided with a backfill retaining wall, determining the position for arranging the retaining wall, and leveling the position for arranging the retaining wall;
(3) The lime lines are adopted to outline the approximate positions of the structures such as the bottom beam 11, the upright post 21 and the like, a foundation is excavated at the positions corresponding to the foundation of the upright post 21 and the anti-skid key 15, and the periphery of the foundation is 5cm longer than the length and the width of the upright post 21 and the anti-skid key 15 respectively;
(4) 2 bottom beams 11 are arranged at corresponding positions on the ground, the limiting rods 13 are opposite and vertical, and tenons 16 at the bottoms of the bottom beams 11 are inserted below the ground;
(5) The upright posts 21 penetrate through the front first position limiting rods 13 between the bottom beams 11, a foundation is inserted between the first position limiting rods, the connecting rods 24 penetrate through beam holes 12 of the bottom beams 11 and column holes 23 of the upright posts 21, nuts are used for fastening the two sides, and C20 concrete is used for filling the foundation;
(6) 2 anti-slip keys 15 respectively penetrate through the space between the second and third limiting rods 13 and are inserted into a foundation, the tops of the anti-slip keys 15 are flush with the tops of the bottom beams 11, and the foundation is filled with C20 concrete; the oblique stay cord 41 passes through the bottom of the bottom beams 11 and bypasses the last anti-slip key 15 to pass through the space between the two bottom beams 11, and the two sides are equally arranged.
(7) Repeating the steps (4) to (6) until the bottom beams 11 and the upright posts 21 of the first-stage combined retaining wall are installed;
(8) Spreading a 20cm thick sand-gravel layer on the bottom beam 11 area, and then spreading a flexible net 17;
(9) A vertical plate 31 is arranged between the positioning bolt 14 and the vertical column 21, so that the vertical column 21 is positioned in the middle of the vertical plate 31;
(10) The inclined pull rope 41 is reserved at the inner side of the vertical plate 31, penetrates through the reserved rope guide hole 32 of the vertical plate 31, penetrates through the rope guide bolt 22 of the vertical column 21, and is fastened at the outer side of the vertical plate 31 by buckling after being tensioned;
(11) The cantilever beams 34 are put into cantilever bolts 33 between the adjacent vertical plates 31, and the adjacent vertical plates 31 are connected by adopting upper and lower cantilever beams 34 under the action of door bolts;
(12) The method comprises the steps of (1) backfilling the earth and stone at the rear part of a first-stage combined retaining wall, tamping, compacting, and then assembling a second-stage combined retaining wall;
(13) The top end of the bottom beam 11 of the second-stage combined retaining wall is propped against the rear surface of the vertical plate 31 of the first-stage retaining wall, and the top of the bottom beam 11 is flush with the top surface of the vertical column 21 of the first-stage retaining wall;
(14) Repeating the steps (3) to (14) until the whole combined retaining wall is assembled.
It should be noted in this method that, in the process of assembling the retaining wall of several stages, it can be specifically understood that the top end of the retaining wall bottom beam 11 of the current stage is abutted against the back of the riser 31 of the retaining wall of the previous stage in step (13).
It should be noted in advance that, in the present invention, unless explicitly specified and limited otherwise, terms such as "mounted," "connected," "fixed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The foregoing is merely exemplary embodiments of the present application, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (7)
1. The construction method of the steel structure combined retaining wall is characterized in that the retaining wall comprises a plurality of retaining wall units which are combined with each other, and the retaining wall units comprise a bottom plate device, a stand column device, a vertical plate device and a diagonal-draw device;
The bottom plate device comprises a bottom beam, one end part of the bottom beam is provided with a beam hole connected with the upright post device, the inner side of the beam hole is provided with a positioning bolt connected with the upright post device, the upper surface and the lower surface of the bottom beam are also provided with a plurality of tenons fixedly connected with the bottom beam, the tenons are positioned in the same plane, a flexible net is arranged between the bottom beams of adjacent retaining wall units, and two sides of the flexible net are respectively fixed on tenons on the upper surfaces of the adjacent bottom beams;
The upright post device comprises an upright post, one end of the upright post is provided with a post hole corresponding to the beam hole, connecting rods are arranged in the upright post and the bottom beam, the two ends of each connecting rod are used for fixing the upright post and the bottom beam through connecting nuts, and the middle upper part of the outer side of the upright post is provided with a guide rope bolt which is convenient to connect with the inclined pulling device;
the vertical plate device comprises vertical plates, wherein the vertical plates are positioned between the upright posts and the positioning bolts, 4 cantilever bolts which are in rectangular distribution are arranged on the outer side face of the vertical plate device, cantilever beams are arranged between two adjacent vertical plates which are horizontally arranged, the cantilever beams are positioned in the cantilever bolts, and rope guide holes connected with the inclined pulling devices are further formed in the vertical plates;
the oblique pulling device comprises an oblique pulling rope, one end of the oblique pulling rope is fixed on the rope guiding bolt, and the other end of the oblique pulling rope penetrates through the rope guiding hole and is fixedly connected to the bottom beam;
The construction method of the retaining wall comprises the following steps:
(1) Prefabricating or cutting each component of the combined retaining wall in a factory, carrying out anti-corrosion treatment, wherein the anti-corrosion treatment comprises a bottom plate device, a stand column device, a stand plate device and a diagonal device, and conveying the components to a construction site warehouse for later use;
(2) Performing stepping investigation on an area needing to be provided with a backfill retaining wall, determining the position for arranging the retaining wall, and leveling the position for arranging the retaining wall;
(3) The positions of the bottom beams and the upright post structures are sketched by lime lines, a foundation is excavated at the positions corresponding to the foundation and the anti-skid keys of the upright posts, and the periphery of the foundation is 5cm longer than the length and the width of each upright post and each anti-skid key;
(4) 2 bottom beams are arranged at corresponding positions on the ground, the limiting rods are opposite and vertical, and tenons at the bottoms of the bottom beams are inserted below the ground;
(5) The upright posts penetrate through the first limit rods in the front of the bottom beams, a foundation is inserted between the limit rods, the connecting rods penetrate through column holes of the upright posts of the bottom beams Liang Kongji, nuts are used for fastening the two sides of the upright posts, and the foundation is filled with C20 concrete;
(6) 2 anti-slip keys respectively penetrate through the space between the second position and the third position limiting rod and are inserted into the foundation, the tops of the anti-slip keys are flush with the tops of the bottom beams, and the foundation is filled with C20 concrete; the oblique stay cord passes through the bottom of the bottom beams by bypassing the last anti-slip key and passes through the space between the two bottom beams, and the two sides are equally arranged;
(7) Repeating the steps (4) to (6) until the bottom beams and the upright posts of the first-stage combined retaining wall are installed;
(8) Spreading a sand pebble layer with the thickness of 20cm on the bottom beam area, and then spreading a flexible net;
(9) A vertical plate is arranged between the positioning bolt and the vertical column, so that the vertical column is positioned in the middle of the vertical plate;
(10) The inner side of the vertical plate is reserved with a diagonal rope, the diagonal rope penetrates through the vertical plate to reserve a rope guide hole, then penetrates through the vertical column rope guide bolt, and is fastened on the outer side of the vertical plate by adopting a buckle after being tensioned;
(11) The cantilever beams are put into cantilever bolts between adjacent vertical plates, and the upper cantilever beams and the lower cantilever beams are adopted to connect the adjacent vertical plates;
(12) The method comprises the steps of (1) backfilling the earth and stone at the rear part of a first-stage combined retaining wall, tamping, compacting, and then assembling a second-stage combined retaining wall;
(13) The top end of a bottom beam of the second-stage combined retaining wall is propped against the rear surface of a vertical plate of the first-stage retaining wall, and the top of the bottom beam is flush with the top surface of a vertical column of the first-stage retaining wall;
(14) Repeating the steps (3) to (14) until the whole combined retaining wall is assembled.
2. The construction method of the steel structure combined retaining wall according to claim 1, wherein 3 groups of limiting rods are arranged on the bottom beam, anti-slip keys are arranged in two limiting rods far away from the upright posts, and the top ends of the anti-slip keys are flush with the bottom surface of the bottom beam.
3. The method for constructing a composite retaining wall of steel structure according to claim 1, wherein the flexible net is a protective net, the mesh of the protective net is laid on the upper part of the bottom plate device through tenons on the upper part of the bottom beam, and the end of the protective net exceeds the end of the bottom beam by not less than 50cm.
4. The method for constructing a combined retaining wall with a steel structure according to claim 1, wherein the vertical plates are steel plates, and right angle notches are formed at four corners of the vertical plates.
5. The construction method of the steel structure combined retaining wall according to claim 1, wherein hooks are arranged at two ends of the cantilever beams.
6. The construction method of a steel structure combined retaining wall according to claim 2, wherein a sand pebble layer is arranged below the flexible net.
7. The method for constructing a composite retaining wall of steel structure according to claim 1, wherein the tamping degree of the backfill stone in the step (12) is not less than 85%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110271375.1A CN112878360B (en) | 2021-03-12 | 2021-03-12 | Steel structure combined retaining wall and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110271375.1A CN112878360B (en) | 2021-03-12 | 2021-03-12 | Steel structure combined retaining wall and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112878360A CN112878360A (en) | 2021-06-01 |
| CN112878360B true CN112878360B (en) | 2024-06-04 |
Family
ID=76041528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110271375.1A Active CN112878360B (en) | 2021-03-12 | 2021-03-12 | Steel structure combined retaining wall and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112878360B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050072376A (en) * | 2004-01-06 | 2005-07-11 | 이창남 | Partial downward basement frame work applying steel concrete beams as the temporary supports |
| KR20060103309A (en) * | 2006-09-07 | 2006-09-28 | 주식회사 백산종합개발 | Gradual bottom-up slice and gradual infilling method for removing underground retaining wall |
| CN103485363A (en) * | 2013-10-10 | 2014-01-01 | 海南恒鑫土木工程建设有限公司 | Three-dimensional continuous frame type reinforced concrete structure retaining wall |
| CN214695725U (en) * | 2021-03-12 | 2021-11-12 | 重庆市地质矿产勘查开发局南江水文地质工程地质队 | Steel construction combination formula retaining wall |
-
2021
- 2021-03-12 CN CN202110271375.1A patent/CN112878360B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050072376A (en) * | 2004-01-06 | 2005-07-11 | 이창남 | Partial downward basement frame work applying steel concrete beams as the temporary supports |
| KR20060103309A (en) * | 2006-09-07 | 2006-09-28 | 주식회사 백산종합개발 | Gradual bottom-up slice and gradual infilling method for removing underground retaining wall |
| CN103485363A (en) * | 2013-10-10 | 2014-01-01 | 海南恒鑫土木工程建设有限公司 | Three-dimensional continuous frame type reinforced concrete structure retaining wall |
| CN214695725U (en) * | 2021-03-12 | 2021-11-12 | 重庆市地质矿产勘查开发局南江水文地质工程地质队 | Steel construction combination formula retaining wall |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112878360A (en) | 2021-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101630235B1 (en) | Precast truss wall structure and construction method of underground structure using thereof | |
| KR102234513B1 (en) | Block type reinforcement retaining wall structure and constructing method for the same | |
| CN104878766A (en) | Long side slope protection concrete continuous rapid pouring and form-drawing system and construction method | |
| CN214695725U (en) | Steel construction combination formula retaining wall | |
| CN111705795A (en) | Prefabricated anchor pier for slope reinforcement and post-cast lattice beam assembly integral construction method | |
| US20060090408A1 (en) | Vehicle barrier system | |
| CN112878360B (en) | Steel structure combined retaining wall and construction method thereof | |
| US5301918A (en) | Form assembly for construction of concrete culverts | |
| KR20200136127A (en) | Deck plate wall installation method using underground pavement | |
| KR102104932B1 (en) | Precast modular system retaining wall | |
| CN113417300A (en) | Slope support system and construction method thereof | |
| KR20100001516A (en) | Joint structure for connecting slant supporter and square steel strut for temporary soil sheathing work | |
| JP2015183366A (en) | Structure and construction method for banking structure | |
| KR101342130B1 (en) | Eco greening and reinforcing facilities for slope of road | |
| KR102352719B1 (en) | The precast concrete retaining wall with anchor bolts that resists lifting loads in two directions and serves as a segment connecting device and its construction method | |
| KR102617795B1 (en) | Retaining wall system combine H-piles with steel reinforcement structure | |
| KR102218755B1 (en) | Construction and Repair Method of Reinforced Earth Retaining Wall | |
| CN116289491A (en) | String beam formula foundation ditch steel landing stage | |
| CN113718847A (en) | Novel pile foundation joist retaining wall and construction method thereof | |
| CN113718804A (en) | Strip mine slope supporting structure and method | |
| KR200308716Y1 (en) | Prestressed scaffolding method | |
| KR100618328B1 (en) | Fiber reinforced composite panel for a protective wall to rock crushing and construction method of a protective wall to rock crushing using the panel | |
| CN101228322B (en) | Tunnel construction method | |
| CN216948271U (en) | Pile foundation fore shaft slidingtype safety cover plate | |
| CN217480204U (en) | Lattice beam slope protection structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |