CN107780423B - Adjustable water cofferdam - Google Patents
Adjustable water cofferdam Download PDFInfo
- Publication number
- CN107780423B CN107780423B CN201711194319.2A CN201711194319A CN107780423B CN 107780423 B CN107780423 B CN 107780423B CN 201711194319 A CN201711194319 A CN 201711194319A CN 107780423 B CN107780423 B CN 107780423B
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- water
- cofferdam
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- steel box
- baffle
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 312
- 229910000831 Steel Inorganic materials 0.000 claims description 97
- 239000010959 steel Substances 0.000 claims description 97
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000741 silica gel Substances 0.000 claims description 8
- 229910002027 silica gel Inorganic materials 0.000 claims description 8
- 230000003139 buffering effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
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- Engineering & Computer Science (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 an adjustable water cofferdam, which comprises a middle water retaining part for retaining water in the width direction of a canal and two end water retaining parts which are respectively arranged at two sides of the middle water retaining part, wherein the end water retaining part comprises a fixed box body and an inner water retaining structure arranged in the fixed box body, the inner water retaining structure comprises an inner water retaining plate and a water retaining plate driving structure for driving the inner water retaining plate to stretch out and draw back, and a foldable water stopping structure for separating the inner space of the fixed box body along the stretching direction of the inner water retaining plate is arranged between the inner water retaining plate and the fixed box body in the fixed box body. When the water cofferdam is used on smaller slopes, the inner water baffle in the end water baffle part can be opened, the height defect of the fixed box body is overcome, water flow is prevented from bypassing the inner water baffle and entering the inner side of the water cofferdam, and compared with the prior art, the water cofferdam can be suitable for slopes with more slopes, and the application range is wider.
Description
Technical Field
The invention relates to a water cofferdam, in particular to an adjustable water cofferdam which can be suitable for side slopes with different slope ratios.
Background
The south-to-north central line trunk engineering has strong dependence on the south-to-north central line water source in the water receiving area since water is introduced. However, some lining panels of the main canal part canal have begun to have quality defects such as cracks, bulges, collapse and the like, and the problems cannot influence the normal water running of the main canal in a short time, but are extremely unfavorable to the overall stability of the canal slope. Because the main canal does not have the condition of water cut-off maintenance at present, the quality defect problems of collapse, bulge and the like of lining panels below the water surface line of the canal can be treated only by adopting temporary measures such as weight pressing and the like. If the quality defect problem is solved in time without adopting permanent and effective treatment measures, the overflow capacity of the main canal can be directly influenced for a long time, and huge hidden danger can be reserved for engineering safety.
In consideration of the problem of water conservancy river engineering slope restoration, when the panel maintenance construction is carried out by combining the south-to-north central line main canal under the normal operation condition, a water cofferdam is required to be arranged on the slope, water is blocked outside the water cofferdam through the water cofferdam, and a dry land operation environment is formed inside the water cofferdam for the restoration construction operation. As the slopes of the side slopes of different canal sections may be different, as shown in fig. 1, common slopes include 1:1, 1:2 and 1:3, and water cofferdams designed according to a 1:2 slope ratio are taken as an example, when the water cofferdams are on the side slopes of 1:1 and 1:2, the lowest position of the top of the water cofferdams can be ensured to be higher than the water surface 14, and the water cofferdams can be normally used; however, for a slope with a gradient of 1:3, the lowest part of the top of the water cofferdam is the joint of the top and the slope, and because the lowest part is lower than the water surface 14, water flow can enter the water cofferdam from the lowest part, so that the water cofferdam cannot be used, and the application range of the water cofferdam is narrow.
Disclosure of Invention
The invention aims to provide an adjustable water cofferdam, which is used for solving the problem that the application range of the existing water cofferdam is narrower.
To achieve the above object, an embodiment 1 of an adjustable water cofferdam of the present invention is: the adjustable water cofferdam comprises a middle water retaining part used for retaining water in the width direction of the canal and two end water retaining parts which are respectively arranged at two sides of the middle water retaining part, wherein the end water retaining part comprises a fixed box body and an inner water retaining structure arranged in the fixed box body, the inner water retaining structure comprises an inner water retaining plate and a water retaining plate driving structure used for driving the inner water retaining plate to stretch out and draw back, and a foldable water stopping structure used for separating the inner space of the fixed box body along the stretching direction of the inner water retaining plate is arranged between the inner water retaining plate and the fixed box body in the fixed box body.
Scheme 2 is, according to scheme 1 the adjustable water cofferdam, fixed box is triangle-shaped steel case, is equipped with the breakwater track that is used for leading to interior breakwater on the bottom surface of triangle-shaped steel case, and breakwater drive structure includes two jacks that are parallel to each other, and the one end of each jack articulates on interior breakwater, and the other end articulates on triangle-shaped steel case.
The scheme 3 is that according to the adjustable water cofferdam of the scheme 2, be equipped with in the triangle-shaped steel case and be used for supporting the backup pad of jack, the jack articulates in the backup pad, and collapsible stagnant water structure has the collapsible stagnant water body of elasticity along with interior breakwater slides, and the bottom of collapsible stagnant water body is equipped with fills water inflation part, and the bottom of triangle-shaped steel case is equipped with the water sealing mounting groove that supplies to fill water inflation part to inlay, fills water inflation part and installs in the water sealing mounting groove and form sealedly between its inflation back and the water sealing mounting groove.
Scheme 4 is, according to scheme 3 the adjustable water cofferdam, the stagnant water mounting groove is including the C shape steel sheet that the cross section is the C shape, and the C shape steel sheet has two horizontal turn-ups that are used for forming its notch, and the notch of C shape steel sheet up and be equipped with on its inner wall and supply the silica gel stagnant water of filling water expansion part contact is equipped with the exhaust hole on the diapire of C shape steel sheet.
Scheme 5 is, according to scheme 4 the adjustable water cofferdam, tip manger plate part is still including setting up the running gear on triangle-shaped steel case, and running gear is including the screw jack of vertical setting, and the screw jack has more than two that set up each other at intervals, and the upper end of screw jack is the operation end, and the lower extreme is connected with the walking wheel.
The adjustable water cofferdam according to the scheme 6, wherein a water bar for buffering water entering from the top is horizontally arranged between the inner water baffle and the inner wall parallel to the inner water baffle of the triangular steel box in the triangular steel box.
The adjustable water cofferdam according to the scheme 7, wherein a water pressing plate for buffering water entering from the bottom is arranged between the inner water baffle and the inner wall of the triangular steel box, which is parallel to the inner water baffle, in the triangular steel box at a lower position.
The scheme 8 is that according to any one of the schemes 3 to 7, the middle water retaining portion is formed by detachably connecting more than two sections of rectangular steel box units, the bottom surface of each rectangular steel box unit is an inclined surface parallel to the bottom surface of each triangular steel box, and water stopping adhesive tapes used for sealing the side slopes are arranged on the bottom surface of each rectangular steel box unit and the bottom surface of each triangular steel box.
The solution 9 is the adjustable water cofferdam according to the solution 8, a water filling and draining port is arranged on the outer wall of the rectangular steel box unit, a water gap baffle plate for controlling the water filling and draining port to open and close is arranged in the rectangular steel box unit, and the water gap baffle plate is connected with a driving structure for driving the water gap baffle plate.
The solution 10 is, according to the adjustable water cofferdam of the solution 9, the driving structure for the water gap baffle comprises a vertically arranged adjusting screw, a hand switch is arranged at the upper end of the adjusting screw, and the lower end of the adjusting screw is connected with the water gap baffle by an inclined rod.
An aspect 11 is the adjustable water cofferdam of the aspect 8, further comprising a movable supporting bar for obliquely supporting between the triangular steel box and the rectangular steel box unit.
The beneficial effects of the invention are as follows: when the water cofferdam is used, the water cofferdam is lowered to a region to be repaired along a side slope, the middle water retaining part and the water retaining parts at the two ends are ensured to be pressed on the side slope, when the water cofferdam is used on a smaller slope, the inner water retaining plates in the water retaining parts at the ends can be spread to make up for the height deficiency of the fixed box body, water flow entering the fixed box body at intervals between the inner water retaining plates and the fixed box body is isolated from the outer side of the plane of the inner water retaining plates by the foldable water retaining structure and the inner water retaining plates, the water flow is prevented from bypassing the inner water retaining plates and entering the inner side of the water cofferdam, and the dry construction environment can be ensured to be formed in the water cofferdam; when the water cofferdam is used on a steep slope, the inner water baffle can be retracted. Compared with the prior art, the water cofferdam can be suitable for slopes with more slopes, and the application range is wider.
Further, a travelling mechanism is arranged on the triangular steel box and comprises travelling wheels and screw jacks for driving the travelling wheels to lift; the travelling wheels can be extended and retracted, so that the cofferdam can be conveniently discharged up and down on the side slope, and the position of the water cofferdam can be conveniently adjusted.
Further, the middle water retaining part is formed by detachably connecting more than two sections of rectangular steel box units, the number of the rectangular steel box units is increased or reduced according to the length requirement of an actual area to be repaired, the length of the water level weir is adjustable, and a good using effect is achieved.
Further, a water filling and draining port is arranged on the rectangular steel box unit, and a water gap baffle and a driving structure for the water gap baffle are arranged in the rectangular steel box unit; the counterweight of the water cofferdam can be increased by water filling, so that the sealing effect between the water cofferdam and the side slope is ensured.
Further, the adjustable water cofferdam also comprises a movable supporting rod which is used for being obliquely supported between the rectangular steel box unit and the triangular steel box; when the length of the water cofferdam is long, the whole strength of the water cofferdam is increased by the movable supporting beams.
Drawings
FIG. 1 is a state of use diagram of a prior water cofferdam on a side slope of different slope ratios;
FIG. 2 is a perspective view of an embodiment one of an adjustable water cofferdam of the present invention;
FIG. 3 is a top view of FIG. 2;
fig. 4 is a front view of fig. 2;
FIG. 5 is a schematic view of the structure of a rectangular steel box unit;
FIG. 6 is a schematic view of the structure of a triangular steel box;
FIG. 7 is a cross-sectional view taken along section A-A of FIG. 6;
fig. 8 is an enlarged view at B in fig. 7.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 2 to 8, the first embodiment of the water cofferdam of the present invention comprises a middle water retaining part 1 for retaining water in the width direction of the channel and end water retaining parts 2 for retaining water in the length direction of the channel, wherein two end water retaining parts 2 are provided, and the two end water retaining parts 2 are respectively arranged at two ends of the middle water retaining part 1; the middle water retaining part 1 is formed by parallel arrangement and detachable connection of more than two rectangular steel box units 3, and the end water retaining part 2 is formed by triangular steel boxes; when the length of the intermediate water blocking portion 1 is long, the width of the water cofferdam is large, and an inclined support beam 5 may be provided between the intermediate water blocking portion and the end water blocking portion inside the water cofferdam to increase the overall strength.
The rectangular steel box unit 3 comprises a front side plate 31, a rear side plate 32 and a bottom plate 33, wherein the front side plate and the rear side plate are arranged at intervals and are parallel to each other, the bottom plate 33 is gradually inclined downwards from inside to outside, the left side and the right side of the rectangular steel box unit 3 are of an opening structure, connecting plates 34 which are vertically arranged are respectively arranged at positions, close to the opening edge of the opening structure, on the front side plate 31 and the rear side plate 32, and connecting holes which are arranged in the vertical direction are formed in the connecting plates 34. When connecting the rectangular steel box units 3, a rubber gasket 13 is interposed between two connection plates of adjacent rectangular steel box units 3 to be butted. Reinforcing plates 35 which are arranged at intervals along the up-down direction are arranged on the inner walls of the front side plate 31 and the rear side plate 32, P-shaped silica gel water stop 43 is arranged on the bottom wall of the bottom plate 33, and the P-shaped silica gel water stop 43 is used for being pressed on a side slope by the water cofferdam.
The front side plate 31 is provided with a water filling and draining port which is square and is close to the bottom plate 33, the rectangular steel box unit 3 is provided with a water gap baffle 36 for controlling the opening and closing of the water filling and draining port, and the water gap baffle 36 is connected with a driving structure for driving the water gap baffle to act. The water gap baffle 36 is installed on the front side plate 31 along the up-down direction, the driving structure for the water gap baffle comprises a screw rod 37 which is vertically arranged and a screw rod mounting plate 38 which is erected between the front side plate and the rear side plate, the screw rod 37 is rotatably installed on the screw rod mounting plate 38, the upper end of the screw rod 37 extends out of the screw rod mounting plate 38 upwards and is connected with a hand handle 39, and the lower end of the screw rod 37 is connected with the water gap baffle 36 through a connecting rod which is obliquely arranged. When in use, the screw rod 37 is rotated by the hand switch 39, and the screw rod 37 pushes/pulls the water gap baffle 36 through the connecting rod so as to control the opening and closing of the water filling and discharging outlet.
The triangle-shaped steel case is right triangle-shaped steel case, and right triangle-shaped steel case includes preceding curb plate, left side board, right side board and bottom plate, and preceding curb plate is the rectangular plate, and left and right side board is right triangle-shaped board, and the bottom plate is the rectangular plate that the slope set up. The top of the triangular steel box is of an opening structure, and the bottom wall of the bottom plate is provided with P-shaped silica gel water stop which is used for being pressed on the side slope by the water cofferdam. The middle part of triangle-shaped steel case is equipped with walking wheel 41 and is used for driving the screw jack 42 that the walking wheel goes up and down, and screw jack 42 has two that the interval set up, and the bottom of each screw jack 42 all is equipped with a walking wheel 41, rotates screw jack 42 when using and puts down walking wheel 41, and water cofferdam accessible walking wheel 41 walks.
When the water cofferdam is used, the water cofferdam is lowered to an area to be repaired along the side slope of a channel, the water cofferdam is firstly sunk by the weight of the water cofferdam, when the dead weight of the water cofferdam is insufficient to compress the P-type silica gel water stop of the rectangular steel box unit 3 and the triangular steel box on the side slope, a water filling and draining port can be opened, water in a water channel is put into the rectangular steel box unit, the weight of the water cofferdam is increased, and the compression of the P-type silica gel is ensured; and then, continuously pumping accumulated water possibly existing in the water cofferdam by using a water pump, so that a dry land operation environment is formed in the water cofferdam, and the construction of the side slope is facilitated.
The triangle-shaped steel tank is provided with interior breakwater 6 in the activity, and interior breakwater 6 is hollow structure, is equipped with collapsible stagnant water structure 7 between the preceding curb plate of interior breakwater 6 and triangle-shaped steel tank, and collapsible stagnant water structure 7 is used for following the flexible direction of interior breakwater 6 and separates the inner space of triangle-shaped steel tank, avoids bypassing interior breakwater 6 entering water cofferdam inboard from the rivers of triangle-shaped steel tank top.
The inner water baffle 6 is a right-angle trapezoid plate, a water baffle track for guiding the inner water baffle 6 is arranged on the bottom plate of the triangular steel box, a water baffle driving structure for driving the inner water baffle 6 to act is arranged between the inner water baffle 6 and the front side plate of the triangular steel box, and the inner water baffle 6 can extend out from the top opening of the triangular steel box under the driving of the water baffle driving structure.
The breakwater drive structure comprises two screw jacks 9 which are arranged parallel to the bottom plate of the triangular steel box, the triangular steel box comprises a support plate 15 which is vertically arranged and used for supporting the screw jacks 9, one end of each screw jack 9 is hinged to the front side plate of the triangular steel box through a hydraulic bearing, and the other end of each screw jack 9 is hinged to the support plate 15 through a hydraulic bearing.
The foldable water stop structure 7 is provided with a foldable water stop body 71 which expands or contracts along with the expansion and contraction of the inner water baffle 6, the bottom of the foldable water stop body 71 is provided with a water filling expansion part 72, the water filling expansion part 72 is provided with a water filling hole 73, the water filling expansion part 72 can elastically expand after being filled with water, and can recover after being drained; one side of the water filling expansion part 72, which is close to the supporting plate 15, is provided with a water filling port, one side, which is far away from the supporting plate 15, is provided with an exhaust hole, the water filling port is connected with a water pipe, the water pipe is connected with a water pump, water is filled into the water filling expansion part 72 through the water pump during use, and the exhaust hole is used for discharging gas so as to avoid the water filling expansion part 72 from floating.
The bottom wall of the triangular steel box is provided with a water stop mounting groove 8 for embedding the water filling expansion part 72, and the water filling expansion part 72 can form a seal with the water stop mounting groove 8 after water filling expansion. The water-stop mounting groove 8 comprises a C-shaped steel plate with a C-shaped cross section, wherein the C-shaped steel plate is used for forming two horizontal flanging of a notch of the C-shaped steel plate, the notch of the C-shaped steel plate faces upwards, a silica gel water stop 75 used for being in contact with the water filling expansion part 72 is arranged on the inner wall of the C-shaped steel plate, and an exhaust hole 74 is formed in the bottom wall of the water-stop mounting groove 8.
The inner water baffle 6 and the triangular inner wall parallel to the inner water baffle 6 are provided with water filling rubber water stop layers for buffering water inflow from the top, the water filling rubber water stop layers are arranged up and down, the water filling rubber water stop layers comprise an upper water filling rubber water stop 10 and a lower water filling rubber water stop 11, the upper water filling rubber water stop 10 is arranged on the inner water baffle 6 close to the top surface of the inner water baffle 6, and the lower water filling water stop 11 is arranged on the inner wall of the triangular steel box close to the bottom. Further, a water pressure plate 12 for buffering bottom inflow water is provided at the lower side of the lower water filling rubber water stop 11.
For slopes with the gradients of 1:1 and 1:2, the adjustable water cofferdam can be used normally, and the inner water baffle 6 in the triangular steel box does not need to extend. For the slope with the gradient of 1:3, the inner water baffle 6 is extended when the water-stop device is used, the foldable water-stop structure 7 is driven by the inner water baffle 6 to open, the interval between the inner water baffle 6 and the supporting plate 15 is blocked, the water-filling expansion part 72 collides after being filled with water and forms a seal with the water-stop mounting groove 8, and water flow entering from the top of the triangular steel box is separated at one side of the inner water baffle 6, so that the water flow is prevented from bypassing the inner water baffle 6 and entering the water cofferdam.
Compared with the prior art, the adjustable water cofferdam can be suitable for slopes with more gradients, the water stopping effect between the water cofferdam and the slopes is good, the structure is simple, the middle water blocking part is of a detachable structure, the length of the water cofferdam is convenient to adjust, the engineering cost of a standard steel-saving box is low, the application range is wide, and the practicability is strong; the triangular steel box is provided with a travelling mechanism, so that the position of the water cofferdam can be adjusted conveniently; be equipped with on the rectangle steel case unit and fill the outlet, the accessible fills the outlet and carries out the counter weight, and the water cofferdam is difficult to be washed away by the rivers, avoids anchoring on the side slope, avoids causing the secondary damage to the side slope.
The second embodiment is different from the first embodiment in that one side of the foldable water stop structure along the expansion direction of the inner water stop is connected to the plate surface of the inner water stop, the other side of the foldable water stop structure is connected to the supporting plate or the inner wall of the triangular steel box, which is perpendicular to the inner water stop, and the water stop mounting groove is staggered with the inner water stop and the water stop track to avoid interference.
In other embodiments, the middle water blocking portion may be an arch-shaped water blocking structure surrounded by more than two steel boxes. In addition, the rectangular steel box unit and the triangular steel box can be provided with the travelling mechanism at the same time.
Claims (11)
1. An adjustable water cofferdam which is characterized in that: including being used for carrying out the middle manger plate part of manger plate and setting up the both ends manger plate part in middle manger plate part both sides respectively at canal width direction, tip manger plate part is including fixed box and the interior manger plate structure of installing in fixed box, and interior manger plate structure includes interior manger plate and is used for driving the flexible manger plate drive structure of interior manger plate, is equipped with in fixed box in interior manger plate and between fixed box and is used for following the flexible direction of interior manger plate and separates the collapsible stagnant water structure of the inner space of fixed box.
2. The adjustable water cofferdam of claim 1, wherein: the fixed box is triangle-shaped steel case, is equipped with the breakwater track that is used for carrying out the direction to interior breakwater on triangle-shaped steel case's the bottom surface, and breakwater drive structure includes two jacks that are parallel to each other set up, and the one end of each jack articulates on the breakwater, and the other end articulates on triangle-shaped steel case.
3. An adjustable water weir as claimed in claim 2 wherein: the triangular steel box is internally provided with a supporting plate for supporting the jack, the jack is hinged on the supporting plate, the foldable water stop structure is provided with a foldable water stop body which stretches elastically along with the sliding of the inner water stop plate, the bottom of the foldable water stop body is provided with a water filling expansion part, the bottom of the triangular steel box is provided with a water stop mounting groove for the water filling expansion part to be embedded, and the water filling expansion part is mounted in the water stop mounting groove and forms a seal with the water stop mounting groove after expansion.
4. An adjustable water cofferdam as in claim 3, wherein: the water stop mounting groove comprises a C-shaped steel plate with a C-shaped cross section, wherein the C-shaped steel plate is provided with two horizontal flanges for forming a notch of the C-shaped steel plate, the notch of the C-shaped steel plate faces upwards, the inner wall of the C-shaped steel plate is provided with silica gel water stop for the water filling expansion part to contact, and the bottom wall of the C-shaped steel plate is provided with an exhaust hole.
5. The adjustable water cofferdam of claim 4, wherein: the end water retaining part also comprises a travelling mechanism arranged on the triangular steel box, the travelling mechanism comprises screw jacks which are vertically arranged, the screw jacks are provided with more than two mutually spaced, the upper ends of the screw jacks are operation ends, and the lower ends of the screw jacks are connected with travelling wheels.
6. The adjustable water cofferdam of claim 5, wherein: the triangular steel box is horizontally provided with a water baffle strip used for buffering water inflow at the top between the inner water baffle and the inner wall of the triangular steel box, which is parallel to the inner water baffle.
7. The adjustable water cofferdam of claim 6, wherein: and a water pressing plate used for buffering bottom water inflow is arranged between the inner water baffle and the inner wall of the triangular steel box, which is parallel to the inner water baffle, in the triangular steel box at a lower position.
8. An adjustable water cofferdam as in any one of claims 3 through 7, wherein: the middle water retaining part is formed by detachably connecting more than two sections of rectangular steel box units, the bottom surface of each rectangular steel box unit is an inclined surface parallel to the bottom surface of each triangular steel box, and water stop adhesive tapes used for sealing the side slopes are arranged on the bottom surface of each rectangular steel box unit and the bottom surface of each triangular steel box.
9. The adjustable water cofferdam of claim 8, wherein: the outer wall of the rectangular steel box unit is provided with a water filling and draining port, the rectangular steel box unit is internally provided with a water gap baffle plate for controlling the water filling and draining port to be opened and closed, and the water gap baffle plate is connected with a driving structure for driving the water gap baffle plate.
10. The adjustable water cofferdam of claim 9, wherein: the driving structure for the water gap baffle comprises a vertically arranged adjusting screw, a hand switch is arranged at the upper end of the adjusting screw, and the lower end of the adjusting screw is connected with the water gap baffle through an inclined rod.
11. The adjustable water cofferdam of claim 8, wherein: the adjustable water cofferdam further comprises a movable supporting rod for being obliquely supported between the triangular steel box and the rectangular steel box unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711194319.2A CN107780423B (en) | 2017-11-24 | 2017-11-24 | Adjustable water cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711194319.2A CN107780423B (en) | 2017-11-24 | 2017-11-24 | Adjustable water cofferdam |
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| Publication Number | Publication Date |
|---|---|
| CN107780423A CN107780423A (en) | 2018-03-09 |
| CN107780423B true CN107780423B (en) | 2024-03-19 |
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| CN201711194319.2A Active CN107780423B (en) | 2017-11-24 | 2017-11-24 | Adjustable water cofferdam |
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| CN111997074A (en) * | 2020-08-20 | 2020-11-27 | 山西四建集团有限公司 | Interim assembled concrete retaining platform subassembly |
| CN113774817B (en) * | 2021-09-15 | 2023-02-28 | 舟山长宏国际船舶修造有限公司 | Assembled highway bridge rapid construction equipment |
| CN115162384B (en) * | 2022-07-21 | 2023-07-14 | 河南省水利第一工程局 | Non-water-cut construction cofferdam structure of pump station forebay and non-water-cut construction method |
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| CN107780423A (en) | 2018-03-09 |
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