CN105297689A - Method for mounting extra-large tainter gate of hydropower station spillway - Google Patents
Method for mounting extra-large tainter gate of hydropower station spillway Download PDFInfo
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- CN105297689A CN105297689A CN201510697119.3A CN201510697119A CN105297689A CN 105297689 A CN105297689 A CN 105297689A CN 201510697119 A CN201510697119 A CN 201510697119A CN 105297689 A CN105297689 A CN 105297689A
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Abstract
The invention relates to a method for mounting an extra-large tainter gate of a hydropower station spillway and a building construction method. By taking reasonable hoisting and mounting measures, welding deformation control measures and safety protection measures, appropriately improving the mounting accuracy and taking other measures, the installation work of the tainter gate is completed, and the requirement for flood passing of the spillway in flood seasons is met; moreover, the reasonable construction period and quality of installation of the tainter gate are guaranteed. By means of the method, the construction procedures are simplified, and the construction period is effectively shortened.
Description
Technical field
The present invention relates to a kind of construction techniques, particularly a kind of construction method for Segment gate in Construction of Hydropower Engineering process.
Background technology
The gate of Segment gate to be obstructing surface be cylindrical part arcwall face, the supporting free bearing of its support arm is positioned at the center of circle, and during keying, gate rotates around supporting free bearing.Because Segment gate does not establish gate slot, hoisting capacity is less, and HYDRODYNAMIC CONDITION RELATING TO is good, runs so be widely used on various types of water channel as Service gate.Segment gate opening/closing system is made up of Segment gate and headstock gear, and Segment gate is generally installed on the lower on dam, river, and headstock gear is installed on the eminence on dam, river, and headstock gear is for opening and closing Segment gate.
In existing Segment gate opening/closing system, headstock gear many employings winding type arc door headstock gear, the shaft coupling of being taken turns by band brake by motor and reducer, open gear pair and cable drum is driven to rotate, and cable drum is connected with the hanger of Segment gate by wire rope, achieve the keying requirement of Segment gate.But because the gearratio of winding type arc door headstock gear drive unit is comparatively large, the diameter of wire rope is comparatively large, therefore whole headstock gear size is larger.Profile is large, from great, take up room large, be not easy to install, cost height is the obvious shortcoming of existing winding type arc door headstock gear.
Summary of the invention
Object of the present invention, it is a kind of convenient to provide to solve the problem exactly, and precision is high, installs the mounting method of simple power station flood spillway oversized radial gate.
The mounting method of power station of the present invention flood spillway oversized radial gate, its key step is:
(1) siding track is installed, adopt the instrument determination benchmark sampling points such as total powerstation, during installation on the body base plate of lock chamber weir erection construction platform, according to siding track fitting limit, operation platform adopts frame pipe to set up, and siding track is installed from the bottom to top, joint track first will be descended most to hang in groove and erect, according to determining reference line strainer or jack adjustment, the range deviation of orifice center line faced by its side water sealing operation is made to control between-1.0-2.0mm;
(2) a fixing free bearing is installed, the method for integral installation again after adopting a fixing free bearing and a hinged bearing crossbeam to assemble;
(3) load-bearing steel platform fabrication and installation, siding track installs base plate immediately below bank of the rear end and arranges load-bearing steel platform for the installation of arc door, and load-bearing steel platform is two covers;
(4) gate flap is installed, gate flap erection procedure is load-bearing steel stage+module, be the gate flap installation of bottom afterwards, gate flap bottom support arm is installed, movable hinge composite member is installed, be positioned at three middle gate flaves to install, top support arm is installed, three, top gate flap is installed, arc door welds, arc door removes load-bearing steel platform after promoting locking, the installation miaow of arc is directed on load-bearing steel platform, according to mileage, elevation releases control point on side wall and simulation end bank, by arc door center line, orifice center line, arc door radius R camber line moves to accuracy steel platform being simulated end bank, flatness, local unevenness is basically identical with bank of the actual end,
(5) welding of arc door and lifting locking, during the welding of arc door, weld seam will reserve allowance for shrinkage and anti-deformation;
(6) end bank, water seal are installed, weld after-pouring and end bank has been installed, and with pre-doweling reinforcement of weld, concreting is carried out in siding track and Di Kan junction, and after end bank installation, arc door and headstock gear are tested, arc every leaf is hung out Kong Pin by qualified rear headstock gear, first installation side water seal, enters at arc door fully open position and progressively installs from the bottom up, dropped to by arc door and highly install bottom seal from end bank 1m after side seal installs.
Described weld seam will reserve allowance for shrinkage, is to carry out spot welding reinforcing, and the length of increment of tack-weld is more than 50mm, and spacing is 250-350mm, weld the thick half being no more than thickness of slab, and thickness is less than 8mm.
Described weld seam will reserve anti-deformation, is the longeron and the dividing plate weld seam that first weld gate flap internode, finally welds the panel butt weld of gate flap internode, during welding panel welding seam, should weld from the bottom up whole fan door.
Described welding, the weld seam that weld length is greater than 300mm all does layer and section welding, and section length is 150-400mm, and every bar weld seam all adopts multi-pass welding.
It is adopt punching limit, limit, bark mark hole to install the method for working continuously that described water seal is installed, and with water seal pressing plate to the water seal number of carrying out hole, uses dinking punching.
Described side seal and the joint of bottom seal adopt hot glue to bond.
The mounting method of power station of the present invention flood spillway oversized radial gate, by formulating reasonably lifting and installation measure, weld industry measure and safety prevention measure, the means such as suitable raising installation accuracy, namely the work that arc door is installed is completed, meet again the requirement that flood spillway is passed the flood period flood season, and ensure that the reasonable time limit for construction that arc door is installed and quality.The present invention is by anhydrous keying and have water actuation test, do one stroke actuation test in the absence of water, arc door opens and closes balance without jam, have no abnormal sound, two suspension centre net synchronization capability is good, and under design head, sealing is tight, and installation quality meets the regulation of design, standard criterion, installation quality all reaches good criteria, meets that engineering flood control is passed the flood period, the adjustment needs of lock retaining and reservoir in flood period water level under reservoir.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
The mounting method of power station of the present invention flood spillway oversized radial gate, its key step is:
(1) siding track is installed, adopt the instrument determination benchmark sampling points such as total powerstation, during installation on the body base plate of lock chamber weir erection construction platform, according to siding track fitting limit, operation platform adopts frame pipe to set up, and siding track is installed from the bottom to top, joint track first will be descended most to hang in groove and erect, according to determining reference line strainer or jack adjustment, the range deviation of orifice center line faced by its side water sealing operation is made to control between-1.0-2.0mm;
(2) a fixing free bearing is installed, the method for integral installation again after adopting a fixing free bearing and a hinged bearing crossbeam to assemble;
(3) load-bearing steel platform fabrication and installation, siding track installs base plate immediately below bank of the rear end and arranges load-bearing steel platform for the installation of arc door, and load-bearing steel platform is two covers;
(4) gate flap is installed, gate flap erection procedure is load-bearing steel stage+module, be the gate flap installation of bottom afterwards, gate flap bottom support arm is installed, movable hinge composite member is installed, be positioned at three middle gate flaves to install, top support arm is installed, three, top gate flap is installed, arc door welds, arc door removes load-bearing steel platform after promoting locking, the installation miaow of arc is directed on load-bearing steel platform, according to mileage, elevation releases control point on side wall and simulation end bank, by arc door center line, orifice center line, arc door radius R camber line moves to accuracy steel platform being simulated end bank, flatness, local unevenness is basically identical with bank of the actual end,
(5) welding of arc door and lifting locking, during the welding of arc door, weld seam will reserve allowance for shrinkage and anti-deformation;
(6) end bank, water seal are installed, weld after-pouring and end bank has been installed, and with pre-doweling reinforcement of weld, concreting is carried out in siding track and Di Kan junction, and after end bank installation, arc door and headstock gear are tested, arc every leaf is hung out Kong Pin by qualified rear headstock gear, first installation side water seal, enters at arc door fully open position and progressively installs from the bottom up, dropped to by arc door and highly install bottom seal from end bank 1m after side seal installs.
Described weld seam will reserve allowance for shrinkage, is to carry out spot welding reinforcing, and the length of increment of tack-weld is more than 50mm, and spacing is 250mm, weld the thick half being no more than thickness of slab, and thickness is less than 8mm.
Described weld seam will reserve anti-deformation, is the longeron and the dividing plate weld seam that first weld gate flap internode, finally welds the panel butt weld of gate flap internode, during welding panel welding seam, should weld from the bottom up whole fan door.
Described welding, the weld seam that weld length is greater than 300mm all does layer and section welding, and section length is 400mm, and every bar weld seam all adopts multi-pass welding.
It is adopt punching limit, limit, bark mark hole to install the method for working continuously that described water seal is installed, and with water seal pressing plate to the water seal number of carrying out hole, uses dinking punching.
Described side seal and the joint of bottom seal adopt hot glue to bond.
Embodiment 2
The mounting method of power station of the present invention flood spillway oversized radial gate, its key step is:
(1) siding track is installed, adopt the instrument determination benchmark sampling points such as total powerstation, during installation on the body base plate of lock chamber weir erection construction platform, according to siding track fitting limit, operation platform adopts frame pipe to set up, and siding track is installed from the bottom to top, joint track first will be descended most to hang in groove and erect, according to determining reference line strainer or jack adjustment, the range deviation of orifice center line faced by its side water sealing operation is made to control between-1.0-2.0mm;
(2) a fixing free bearing is installed, the method for integral installation again after adopting a fixing free bearing and a hinged bearing crossbeam to assemble;
(3) load-bearing steel platform fabrication and installation, siding track installs base plate immediately below bank of the rear end and arranges load-bearing steel platform for the installation of arc door, and load-bearing steel platform is two covers;
(4) gate flap is installed, gate flap erection procedure is load-bearing steel stage+module, be the gate flap installation of bottom afterwards, gate flap bottom support arm is installed, movable hinge composite member is installed, be positioned at three middle gate flaves to install, top support arm is installed, three, top gate flap is installed, arc door welds, arc door removes load-bearing steel platform after promoting locking, the installation miaow of arc is directed on load-bearing steel platform, according to mileage, elevation releases control point on side wall and simulation end bank, by arc door center line, orifice center line, arc door radius R camber line moves to accuracy steel platform being simulated end bank, flatness, local unevenness is basically identical with bank of the actual end,
(5) welding of arc door and lifting locking, during the welding of arc door, weld seam will reserve allowance for shrinkage and anti-deformation;
(6) end bank, water seal are installed, weld after-pouring and end bank has been installed, and with pre-doweling reinforcement of weld, concreting is carried out in siding track and Di Kan junction, and after end bank installation, arc door and headstock gear are tested, arc every leaf is hung out Kong Pin by qualified rear headstock gear, first installation side water seal, enters at arc door fully open position and progressively installs from the bottom up, dropped to by arc door and highly install bottom seal from end bank 1m after side seal installs.
Described weld seam will reserve allowance for shrinkage, is to carry out spot welding reinforcing, and the length of increment of tack-weld is more than 50mm, and spacing is 350mm, weld the thick half being no more than thickness of slab, and thickness is less than 8mm.
Described weld seam will reserve anti-deformation, is the longeron and the dividing plate weld seam that first weld gate flap internode, finally welds the panel butt weld of gate flap internode, during welding panel welding seam, should weld from the bottom up whole fan door.
Described welding, the weld seam that weld length is greater than 300mm all does layer and section welding, and section length is 150mm, and every bar weld seam all adopts multi-pass welding.
It is adopt punching limit, limit, bark mark hole to install the method for working continuously that described water seal is installed, and with water seal pressing plate to the water seal number of carrying out hole, uses dinking punching.
Described side seal and the joint of bottom seal adopt hot glue to bond.
Embodiment 3
The mounting method of power station of the present invention flood spillway oversized radial gate, its key step is:
(1) siding track is installed, adopt the instrument determination benchmark sampling points such as total powerstation, during installation on the body base plate of lock chamber weir erection construction platform, according to siding track fitting limit, operation platform adopts frame pipe to set up, and siding track is installed from the bottom to top, joint track first will be descended most to hang in groove and erect, according to determining reference line strainer or jack adjustment, the range deviation of orifice center line faced by its side water sealing operation is made to control between-1.0-2.0mm;
(2) a fixing free bearing is installed, the method for integral installation again after adopting a fixing free bearing and a hinged bearing crossbeam to assemble;
(3) load-bearing steel platform fabrication and installation, siding track installs base plate immediately below bank of the rear end and arranges load-bearing steel platform for the installation of arc door, and load-bearing steel platform is two covers;
(4) gate flap is installed, gate flap erection procedure is load-bearing steel stage+module, be the gate flap installation of bottom afterwards, gate flap bottom support arm is installed, movable hinge composite member is installed, be positioned at three middle gate flaves to install, top support arm is installed, three, top gate flap is installed, arc door welds, arc door removes load-bearing steel platform after promoting locking, the installation miaow of arc is directed on load-bearing steel platform, according to mileage, elevation releases control point on side wall and simulation end bank, by arc door center line, orifice center line, arc door radius R camber line moves to accuracy steel platform being simulated end bank, flatness, local unevenness is basically identical with bank of the actual end,
(5) welding of arc door and lifting locking, during the welding of arc door, weld seam will reserve allowance for shrinkage and anti-deformation;
(6) end bank, water seal are installed, weld after-pouring and end bank has been installed, and with pre-doweling reinforcement of weld, concreting is carried out in siding track and Di Kan junction, and after end bank installation, arc door and headstock gear are tested, arc every leaf is hung out Kong Pin by qualified rear headstock gear, first installation side water seal, enters at arc door fully open position and progressively installs from the bottom up, dropped to by arc door and highly install bottom seal from end bank 1m after side seal installs.
Described weld seam will reserve allowance for shrinkage, is to carry out spot welding reinforcing, and the length of increment of tack-weld is more than 50mm, and spacing is 300mm, weld the thick half being no more than thickness of slab, and thickness is less than 8mm.
Described weld seam will reserve anti-deformation, is the longeron and the dividing plate weld seam that first weld gate flap internode, finally welds the panel butt weld of gate flap internode, during welding panel welding seam, should weld from the bottom up whole fan door.
Described welding, the weld seam that weld length is greater than 300mm all does layer and section welding, and section length is 260mm, and every bar weld seam all adopts multi-pass welding.
It is adopt punching limit, limit, bark mark hole to install the method for working continuously that described water seal is installed, and with water seal pressing plate to the water seal number of carrying out hole, uses dinking punching.
Described side seal and the joint of bottom seal adopt hot glue to bond.
Claims (6)
1. a mounting method for power station flood spillway oversized radial gate, is characterized in that, its key step is:
(1) siding track is installed, adopt the instrument determination benchmark sampling points such as total powerstation, during installation on the body base plate of lock chamber weir erection construction platform, according to siding track fitting limit, operation platform adopts frame pipe to set up, and siding track is installed from the bottom to top, joint track first will be descended most to hang in groove and erect, according to determining reference line strainer or jack adjustment, the range deviation of orifice center line faced by its side water sealing operation is made to control between-1.0-2.0mm;
(2) a fixing free bearing is installed, the method for integral installation again after adopting a fixing free bearing and a hinged bearing crossbeam to assemble;
(3) load-bearing steel platform fabrication and installation, siding track installs base plate immediately below bank of the rear end and arranges load-bearing steel platform for the installation of arc door, and load-bearing steel platform is two covers;
(4) gate flap is installed, gate flap erection procedure is load-bearing steel stage+module, be the gate flap installation of bottom afterwards, gate flap bottom support arm is installed, movable hinge composite member is installed, be positioned at three middle gate flaves to install, top support arm is installed, three, top gate flap is installed, arc door welds, arc door removes load-bearing steel platform after promoting locking, the installation miaow of arc is directed on load-bearing steel platform, according to mileage, elevation releases control point on side wall and simulation end bank, by arc door center line, orifice center line, arc door radius R camber line moves to accuracy steel platform being simulated end bank, flatness, local unevenness is basically identical with bank of the actual end,
(5) welding of arc door and lifting locking, during the welding of arc door, weld seam will reserve allowance for shrinkage and anti-deformation;
(6) end bank, water seal are installed, weld after-pouring and end bank has been installed, and with pre-doweling reinforcement of weld, concreting is carried out in siding track and Di Kan junction, and after end bank installation, arc door and headstock gear are tested, arc every leaf is hung out Kong Pin by qualified rear headstock gear, first installation side water seal, enters at arc door fully open position and progressively installs from the bottom up, dropped to by arc door and highly install bottom seal from end bank 1m after side seal installs.
2. the mounting method of power station according to claim 1 flood spillway oversized radial gate, it is characterized in that, described weld seam will reserve allowance for shrinkage, carry out spot welding reinforcing, the length of increment of tack-weld is more than 50mm, spacing is 250-350mm, weld the thick half being no more than thickness of slab, and thickness is less than 8mm.
3. the mounting method of power station according to claim 1 flood spillway oversized radial gate, it is characterized in that, described weld seam will reserve anti-deformation, the longeron and the dividing plate weld seam that first weld gate flap internode, finally weld the panel butt weld of gate flap internode, during welding panel welding seam, should weld from the bottom up whole fan door.
4. the mounting method of power station according to claim 1 flood spillway oversized radial gate, it is characterized in that, described welding, the weld seam that weld length is greater than 300mm all does layer and section welding, section length is 150-400mm, and every bar weld seam all adopts multi-pass welding.
5. the mounting method of power station according to claim 1 flood spillway oversized radial gate, is characterized in that, it is adopt punching limit, limit, bark mark hole to install the method for working continuously that described water seal is installed, and with water seal pressing plate to the water seal number of carrying out hole, uses dinking punching.
6. the mounting method of power station according to claim 1 flood spillway oversized radial gate, is characterized in that, described side seal and the joint of bottom seal adopt hot glue to bond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510697119.3A CN105297689A (en) | 2015-10-24 | 2015-10-24 | Method for mounting extra-large tainter gate of hydropower station spillway |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510697119.3A CN105297689A (en) | 2015-10-24 | 2015-10-24 | Method for mounting extra-large tainter gate of hydropower station spillway |
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| CN105297689A true CN105297689A (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510697119.3A Pending CN105297689A (en) | 2015-10-24 | 2015-10-24 | Method for mounting extra-large tainter gate of hydropower station spillway |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759155A (en) * | 2017-02-28 | 2017-05-31 | 中国葛洲坝集团机械船舶有限公司 | A kind of gates of segmental shape installation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014101739A (en) * | 2012-11-22 | 2014-06-05 | Hokoku Kogyo Co Ltd | Circular arc-type roller gate |
| CN103953011A (en) * | 2014-05-19 | 2014-07-30 | 葛洲坝集团第六工程有限公司 | Method for installing radial gate with diversion bottom hole under overflowing condition |
-
2015
- 2015-10-24 CN CN201510697119.3A patent/CN105297689A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014101739A (en) * | 2012-11-22 | 2014-06-05 | Hokoku Kogyo Co Ltd | Circular arc-type roller gate |
| CN103953011A (en) * | 2014-05-19 | 2014-07-30 | 葛洲坝集团第六工程有限公司 | Method for installing radial gate with diversion bottom hole under overflowing condition |
Non-Patent Citations (1)
| Title |
|---|
| 黄伟等: "糯扎渡水电站溢洪道表孔超大型弧形闸门倒序安装", 《水利水电技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759155A (en) * | 2017-02-28 | 2017-05-31 | 中国葛洲坝集团机械船舶有限公司 | A kind of gates of segmental shape installation method |
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Application publication date: 20160203 |
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