阅读说明：本技术 一种挡水围堰结构及其施工工艺 (Water retaining cofferdam structure and construction process thereof ) 是由 杨成权 于 2019-09-18 设计创作，主要内容包括：本发明涉及一种挡水围堰结构,其包括沿顺河流动方向设置的挡水围堰,挡水围堰包括若干挡水板,挡水板沿其安装方向于其两侧分别设置有卡槽和卡块,相邻的两块挡水板通过卡槽和卡块相互卡接。在进行挡水围堰的施工过程中,沿挡水围堰的施工走向进行挡水板的安装,将挡水板打入河床中进行固定,再依次将后一块挡水板的卡块卡接于前一块挡水板的卡槽中,并将其打入河床中进行固定,如此循环,直至挡水围堰形成,相较于用编织袋装土直接堆垒的方式,更加便于挡水围堰的施工,本发明具有提高施工效率的效果。(The invention relates to a water retaining cofferdam structure which comprises a water retaining cofferdam arranged along the flowing direction of a river, wherein the water retaining cofferdam comprises a plurality of water retaining plates, clamping grooves and clamping blocks are respectively arranged on two sides of each water retaining plate along the installation direction of the water retaining plate, and two adjacent water retaining plates are mutually clamped and connected through the clamping grooves and the clamping blocks. In the construction process of the water retaining cofferdam, the water retaining plates are installed along the construction trend of the water retaining cofferdam, the water retaining plates are driven into the river bed to be fixed, then the clamping blocks of the next water retaining plate are clamped in the clamping grooves of the previous water retaining plate in sequence and are driven into the river bed to be fixed, and the process is circulated until the water retaining cofferdam is formed.)

1. The utility model provides a manger plate cofferdam structure, its characterized in that includes along manger plate cofferdam (1) that the river moved the direction setting, its characterized in that, manger plate cofferdam (1) includes a plurality of breakwaters (2), breakwater (2) are provided with draw-in groove (3) and fixture block (4) respectively in its both sides along its installation direction, two adjacent breakwater (2) are through draw-in groove (3) and fixture block (4) mutual joint.

2. The water-retaining cofferdam structure of claim 1, characterized in that said water-retaining plate (2) is provided with a peg (5) at its lower end in the direction of installation and said water-retaining plate (2) is provided with a first knocking end (6) at its upper end in the direction of installation.

3. The water-retaining cofferdam structure according to claim 1, characterized in that the water-retaining plates (2) are internally perforated and slidably connected with supporting columns (7) along the installation direction thereof, the supporting column (7) comprises a first supporting column (71) and a second supporting column (72) from top to bottom, the first supporting column (71) is rotatably connected with the second supporting column (72), one end of the first supporting column (71), which is far away from the end rotatably connected with the second supporting column (72), penetrates out of the water baffle (2) and is provided with a second knocking end (8), the end of the second strut (72) away from the end rotatably connected with the first strut (71) is provided with a conical tip (9), an opening (10) through which the second pillar (72) penetrates is arranged in the water baffle (2), the water baffle (2) is provided with a guide inclined plane (11) at the opening (10) for the second pillar (72) to penetrate through the opening (10) to rotate.

4. The water-retaining cofferdam structure of claim 3, characterized in that the end of the water-retaining plate (2) far away from the first pillar (71) at the same side of the supporting pillar (7) is rotatably connected with a rotating rod (12), and the end of the rotating rod (12) far away from the rotating connection with the water-retaining plate (2) is rotatably connected with the second pillar (72).

5. The water-retaining cofferdam structure according to claim 1, wherein said fixture block (4) is wrapped with a water stop strip (13) at its edge along its length direction.

6. Water dam structure according to claim 1, characterized in that said breakwaters (2) are provided with a handle (14).

7. The construction process of the water retaining cofferdam is characterized by comprising the following steps of:

firstly, positioning and paying off, namely, driving positioning piles into a river bed at equal intervals outside a retaining wall construction position along the water flow direction, and winding positioning lines with floaters on each positioning pile to form the installation trend of the water baffle (2);

step two, constructing the water retaining cofferdam (1) along the length direction of the positioning line, sequentially driving water retaining plates (2) into the riverbed, and connecting the two adjacent water retaining plates (2) end to end through clamping grooves (3) and clamping blocks (4) to form the water retaining cofferdam (1);

and step three, pumping water in the water retaining cofferdam (1) and removing river bottom sludge, thereby carrying out construction of the retaining wall foundation pit.

8. The water-retaining cofferdam construction process according to claim 7, wherein in the second step, soil woven bags are piled and piled at the joint of two adjacent water-retaining plates (2).

9. The water-retaining cofferdam construction process according to claim 7, characterized in that the water-retaining cofferdam (1) formed by connecting the water-retaining plates (2) in sequence is arc-shaped.

Technical Field

The invention relates to the technical field of hydraulic engineering, in particular to a water retaining cofferdam structure and a construction process thereof.

Background

When carrying out the building of facing river sewage treatment station, in order to guarantee sewage treatment station later stage operation safety, the face of facing the river at sewage treatment station needs design retaining wall in order to prevent that the rivers from erodeing. Because of the sewage treatment station retaining wall is under construction near the river, in order to guarantee construction operation safety and engineering quality, measures are needed to prevent river water from influencing foundation pit excavation and retaining wall pouring.

In the prior art, a woven bag is generally adopted for filling soil, a cofferdam is arranged outside a pouring position of a retaining wall along a river direction, the main function of the cofferdam is to cut off and block water, conditions are created for foundation pit excavation and foundation construction of the retaining wall, and then the foundation construction of the retaining wall is guaranteed in a water pumping mode.

The above prior art solutions have the following drawbacks: in the process of building a weir body by weaving bagged soil mounds and damps in a river, one layer of woven bags for filling clay are needed, which is very troublesome and influences the construction progress.

Disclosure of Invention

The invention aims to provide a water-retaining cofferdam structure which has the advantage of improving the construction efficiency.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a manger plate cofferdam structure, includes along the manger plate cofferdam that moves the direction setting along the river, the manger plate cofferdam includes a plurality of breakwaters, the breakwater is provided with draw-in groove and fixture block respectively in its both sides along its installation direction, adjacent two the breakwater passes through draw-in groove and the mutual joint of fixture block.

Implement above-mentioned technical scheme, in the work progress of carrying out the manger plate cofferdam, the installation of breakwater is carried out along the construction trend of manger plate cofferdam, squeeze into the riverbed with the breakwater and fix, the fixture block joint of a breakwater in the past in the draw-in groove of a breakwater in proper order again, and squeeze into the riverbed with it and fix, so circulate, until the manger plate cofferdam forms, compare in the mode that is used for the direct pile of woven bag soil and builds, the construction in the manger plate cofferdam of being convenient for more, and simultaneously, the advantage that has the improvement efficiency of construction.

The invention is further provided that the lower end of the water baffle along the installation direction is provided with an inserting nail, and the upper end of the water baffle along the installation direction is provided with a first knocking end.

Implement above-mentioned technical scheme, through be provided with first knocking end and plug pin on the breakwater, be convenient for at the in-process of installation breakwater, constructor beats the end through beating and squeezes into the riverbed with the plug pin of breakwater for it is more firm that the breakwater is installed in the riverbed.

The water baffle is further provided with a support column which is arranged in the water baffle in a penetrating manner along the installation direction of the water baffle and is connected with the water baffle in a sliding manner, the support column comprises a first support column and a second support column from top to bottom, the first support column is rotatably connected with the second support column, one end, far away from the first support column, rotatably connected with the second support column penetrates through the water baffle and is provided with a second knocking end, one end, far away from the second support column, rotatably connected with the first support column is provided with a conical tip, the water baffle is internally provided with an opening for the second support column to penetrate through, and the water baffle is provided with a guide inclined plane for the second support column to penetrate through the opening and rotate.

Implement above-mentioned technical scheme, when breakwater fixed mounting was in the riverbed, strike the support column through the second end of knocking and hit, make the support column towards the riverbed internal motion, because first pillar is connected with second pillar rotation each other, at the in-process of support column towards the riverbed internal motion, the opening is worn out to the second pillar, and under the effect on direction inclined plane, the second pillar takes place to rotate and produces certain inclination with the breakwater, and squeeze into in the riverbed, at this moment, the second pillar, the horizontal plane of breakwater and riverbed forms firm triangular surface, further improve the stability of breakwater.

The invention is further arranged in that one end of the water baffle, which is far away from the first support column, on the same side of the support column is rotatably connected with a rotating rod, and one end of the rotating rod, which is far away from the rotating connection part of the rotating rod and the water baffle, is rotatably connected with the second support column.

Implement above-mentioned technical scheme, wear out the opening at the second pillar to take place the pivoted in-process under the effect on direction inclined plane, the toper pointed end of second pillar drives the dwang and rotates, makes dwang and breakwater produce certain inclination, makes the dwang carry out the butt to the second pillar, further reduces the second pillar and takes place pivoted possibility in the support process.

The invention is further provided that the edge of the clamping block is coated with a water stop strip along the length direction of the clamping block.

Implement above-mentioned technical scheme, connect the back with two adjacent breakwaters through draw-in groove and fixture block, the fixture block can have the installation gap with the draw-in groove, is provided with the sealing rod through the edge cladding at the fixture block, and the sealing rod meets water inflation for the gap between draw-in groove and the fixture block can be filled up to the sealing rod after the inflation, reduces the seepage of water.

The invention is further provided that the water baffle is provided with a handle.

Implement above-mentioned technical scheme, through be provided with the handle on the breakwater, be convenient for hoist and mount the breakwater through the handle.

The invention aims to provide a water-retaining cofferdam construction process which has the advantage of improving the construction efficiency.

The second purpose of the invention is realized by the following technical scheme:

a construction process of a water retaining cofferdam comprises the following steps:

firstly, positioning and paying off, namely, driving positioning piles into a river bed at equal intervals outside a construction position of a retaining wall along a water flow direction, and winding a positioning line with a floater on each positioning pile to form the installation trend of a water baffle;

step two, performing water retaining cofferdam construction along the length direction of the positioning line, sequentially driving water retaining plates into the river bed, and connecting two adjacent water retaining plates end to end through clamping grooves and clamping blocks to form a water retaining cofferdam;

and step three, pumping water in the water retaining cofferdam and removing river bottom sludge, thereby carrying out construction of the retaining wall foundation pit.

Implement above-mentioned technical scheme, the guide pile is squeezed into at the equal interval in the riverbed along the construction trend of manger plate weir, the position line that has the floater on the winding of every guide pile along the trend of guide pile again, and make the position line between two adjacent guide piles tight, the position line floats on the surface of water under the showy effect of floater, be convenient for constructor along the end to end of the square draw-in groove of length through of position line and fixture block, install the breakwater in proper order, make the breakwater installed form the manger plate cofferdam fast, and take out the water in the manger plate cofferdam through pump drainage equipment, have the advantage that improves the efficiency of construction.

The invention is further set as that in the second step, the soil woven bags are piled and stacked at the joint of two adjacent water baffles.

By implementing the technical scheme, the anti-impact force of the water baffles is improved by piling and piling the soil-filled woven bag at the joint of the two adjacent water baffles.

The invention is further provided that the water-retaining cofferdam formed by sequentially connecting the water-retaining plates is arc-shaped.

By implementing the technical scheme, the water retaining weir formed by connecting the water retaining plates forms an arc shape, and can effectively resist the impact force of river water, thereby ensuring the quality and stability of the water retaining cofferdam.

In conclusion, the invention has the following beneficial effects:

firstly, in the construction process of the water retaining cofferdam, installing water retaining plates along the construction trend of the water retaining cofferdam, driving the water retaining plates into a river bed for fixing, then sequentially clamping the clamping blocks of the next water retaining plate into the clamping grooves of the previous water retaining plate, and driving the clamping blocks into the river bed for fixing, and circulating the steps until the water retaining cofferdam is formed, so that the construction of the water retaining cofferdam is more convenient compared with a mode of directly piling and piling bagged soil by weaving, and meanwhile, the construction efficiency is improved;

when the water baffle is fixedly arranged in the river bed, the supporting column is beaten through the second knocking end, so that the supporting column moves towards the inside of the river bed, the first supporting column and the second supporting column are mutually rotatably connected, the second supporting column penetrates out of the opening in the process that the supporting column moves towards the inside of the river bed, the second supporting column rotates under the action of the guide inclined plane to form a certain inclination angle with the water baffle and is beaten into the river bed, and at the moment, the horizontal planes of the second supporting column, the water baffle and the river bed form a stable triangular surface, so that the stability of the water baffle is further improved;

the opening is penetrated out of the second pillar, and in the process of rotating under the action of the guide inclined plane, the conical tip of the second pillar drives the rotating rod to rotate, so that the rotating rod and the water baffle plate generate a certain inclination angle and are perpendicular to each other until the rotating rod and the water baffle plate, the water baffle plate can abut against the second pillar, and the possibility of rotating of the second pillar in the supporting process is further reduced.

Drawings

FIG. 1 is a schematic overall view of a water-retaining cofferdam structure according to an embodiment of the present invention;

FIG. 2 is a schematic view of the connection of a support post and a rotatable rod in accordance with an embodiment of the present invention;

FIG. 3 is a schematic view of the installation of the water-retaining cofferdam structure of the embodiment of the invention;

fig. 4 is an enlarged view of a portion a in fig. 3.

Reference numerals: 1. a water retaining cofferdam; 2. a water baffle; 3. a card slot; 4. a clamping block; 5. inserting a nail; 6. a first knocking end; 7. a support pillar; 71. a first support; 72. a second support; 8. a second knocking end; 9. a tapered tip; 10. an opening; 11. a guide slope; 12. rotating the rod; 13. a water stop bar; 14. and (4) a handle.

Detailed Description

The technical solutions of the embodiments of the present invention will be described below with reference to the accompanying drawings.