Movable flood diversion structure

Abstract

Movable flood interception structure. The traditional flood interception ditch type is not only expensive and difficult to construct, but also has safety hazards such as easy damage in the later stage. Improper handling will have a serious impact on the project. The present invention comprises: multiple flood interception ditches (1) arranged in a circular manner on the bank slope (7), drainage chutes (2) and reservoir bottom drainage culverts (3); a water inlet is provided between two adjacent flood interception ditches on the side of the drainage chute for introducing drainage between adjacent flood interception ditches; the drainage chute is arranged along the slope, and the lower end is connected to the ditch bottom drainage culvert; the ditch bottom drainage culvert passes through the dam body and is led to the drainage outlet (4). The present invention is used for flood interception and drainage on the bank slope.

Description

Technical Field

[0001] The invention belongs to the technical field of ash storage yards, waste slag yards and tailings ponds, and particularly relates to a movable flood interception structure. Background Art

[0002] With the increasing national environmental requirements and changes in environmental protection concepts, it is required that diversion ditches must be set up around ash storage sites, waste dumps, and tailings ponds to prevent surrounding guest water from entering the ponds, thus achieving the environmental protection concept of clear water discharge and clear and turbid water separation. Common diversion ditches are basically set up along the contour line one week above the final pile surface. The cross-section is mostly rectangular or trapezoidal, and uses cast-in-place reinforced concrete or mortar masonry structure. This project is huge and difficult to implement in the valleys with steep slopes in the northwest region, especially in the loess gully areas, making it difficult to implement the environmental protection requirements of clear and turbid water separation. In particular, for valley ash dumps, waste dumps, and tailings ponds that have been built and put into operation, if traditional diversion ditches are used, not only will the cost be high and the construction difficult, but there will also be safety hazards such as easy damage in the later stage. Improper handling will have a serious impact on the project. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems existing in the flood diversion ditches of existing ash storage yards, waste slag yards and tailings ponds, and to provide a movable flood diversion structure; the flood diversion structure layout not only achieves the goal of environmental protection, but also can reduce the construction difficulty and project cost, and has good maintainability.

[0004] The above purpose is achieved through the following technical solutions:

[0005] A movable flood interception structure, comprising a plurality of flood interception ditches, drainage chutes and reservoir bottom drainage culverts arranged in a circular manner and supported on a bank slope;

[0006] A water inlet is provided between two adjacent intercepting ditches on the side of the drainage chute for introducing drainage between the adjacent intercepting ditches;

[0007] The drainage chute is arranged along the slope, and the lower end is connected to the drainage culvert at the bottom of the ditch;

[0008] The ditch bottom drainage culvert passes through the dam body and leads to the drainage outlet.

[0009] The movable flood diversion structure and the flood diversion ditch are composed of multiple steel supports, anti-seepage geomembrane and bank slope. One end of the steel support is sharp and inserted into the bank slope. Adjacent steel supports are connected and fixed by support bars. The back of the steel support is hinged with a support rod to support the pile. An anti-seepage geomembrane is laid on the steel support and the bank slope. One side of the anti-seepage geomembrane is wrapped or tied and fixed to the top of the steel support, and the other side is fixed to the bank slope with soil nails or concrete strips.

[0010] The movable flood interception structure and the anti-seepage geomembrane are made of UV-resistant PE film or HDPE film.

[0011] The movable flood interception structure and the drainage chute are cast-in-place reinforced concrete structures, which are built vertically along the slope.

[0012] The movable flood interception structure, the support bars are steel bar pull bars or flat steel.

[0013] Beneficial effects:

[0014] 1. The present invention does not require slope cutting and excavation, which greatly reduces construction earthwork and construction difficulty; the flood diversion ditch itself has a simple structure and does not require reinforced concrete and stone masonry, which reduces the cost of the ditch project; at the same time, the solution has the advantages of short construction period, easy later maintenance and low maintenance cost.

[0015] 2. The interception ditch of the present invention guides external slope rainwater into the drainage chute, and discharges it from the drainage outlet to the downstream of the reservoir area through the culvert at the bottom of the reservoir, and then discharges it into the downstream gully. The interception ditch can move upward in stages as the top surface of the pile continues to rise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attachment Figure 1 It is a plan layout of movable flood interception;

[0017] Attachment Figure 2 It is a longitudinal section of the movable flood interception;

[0018] Attachment Figure 3 This is one of the cross-sections of the mobile flood diversion ditch;

[0019] Attachment Figure 4 This is the second cross-section of the mobile flood diversion ditch;

[0020] Attachment Figure 5 It is a cross-sectional view of the drainage chute;

[0021] In the figure: 1. Flood diversion ditch; 2. Drainage chute; 3. Reservoir bottom drainage culvert; 4. Drainage outlet; 5. Steel support; 6. Anti-seepage geomembrane; 7. Bank slope; 8. Piled structure; 9. Support rod; 10. Support bar. DETAILED DESCRIPTION

[0022] Example 1:

[0023] A movable flood interception structure, comprising a plurality of flood interception ditches 1, drainage chutes 2 and reservoir bottom drainage culverts 3 arranged in a circular manner and supported on a bank slope 7;

[0024] A water inlet is provided between two adjacent intercepting ditches on the side of the drainage chute for introducing drainage between the adjacent intercepting ditches;

[0025] The drainage chute is arranged along the slope, and the lower end is connected to the drainage culvert at the bottom of the ditch;

[0026] The ditch bottom drainage culvert passes through the dam body and leads to the drainage outlet 4.

[0027] Example 2:

[0028] According to the movable flood diversion structure described in Example 1, the flood diversion ditch is composed of multiple steel supports 5, anti-seepage geomembrane 6 and bank slope 7. One end of the steel support is sharp and inserted into the bank slope. The adjacent steel supports are connected and fixed by support bars 10. The back of the steel support is hinged with a support rod 9 supported on the pile 8. An anti-seepage geomembrane is laid on the steel support and the bank slope. One side of the anti-seepage geomembrane is wrapped or tied and fixed to the top of the steel support, and the other side is fixed to the bank slope with soil nails or concrete strips.

[0029] Example 3:

[0030] According to the movable flood interception structure described in Example 1 or 2, the anti-seepage geomembrane is a UV-resistant PE film or HDPE film.

[0031] Example 4:

[0032] According to the movable flood interception structure described in Example 1, 2 or 3, the drainage chute is a cast-in-place reinforced concrete structure, which is built vertically along the slope.

[0033] Example 5:

[0034] According to the movable flood diversion structure described in Example 1, 2, 3 or 4, the support bars are steel bars or flat steel.

[0035] Working principle: The steel support can be round steel or square steel. One end of the steel support is processed into a sharp shape so that it can be driven into the steep slope. The support rod then reinforces its vertical support. The steel supports are connected by steel bars or flat steel to form horizontal support and tension. The support system is simple and easy to dismantle and assemble. The diversion ditch can adjust the depth of the steel support inserted into the slope as the elevation of the top surface of the pile changes, thereby adjusting the height of the diversion ditch to cope with different rainfall amounts, reducing construction earthwork and construction difficulty. The drainage chute adopts cast-in-place reinforced concrete structure and is vertically built along the slope. An access port is set on the side to connect to the diversion ditch, and the lower end is connected to the drainage culvert at the bottom of the ditch. The drainage culvert and the drainage outlet adopt cast-in-place reinforced concrete structure. The slope water flows from the diversion ditch into the drainage chute, and then passes through the drainage culvert at the bottom of the ditch behind the dam, flows out from the drainage outlet through the dam body, and is discharged into the downstream gully.

Claims

1. A movable flood interception structure, characterized by: Its composition includes multiple flood intercepting ditches, drainage chutes and drainage culverts at the bottom of the ditch, which are arranged in a circular manner and supported on the bank slope; A water inlet is provided between two adjacent intercepting ditches on the side of the drainage chute for introducing drainage between the adjacent intercepting ditches; The drainage chute is arranged along the slope, and the lower end is connected to the drainage culvert at the bottom of the ditch; the drainage chute adopts a cast-in-place reinforced concrete structure, is vertically masoned along the slope, has an access port on the side to connect to the flood interception ditch, and the lower end is connected to the drainage culvert at the bottom of the ditch; The drainage culvert and outlet are made of cast-in-place reinforced concrete. The slope water flows from the interception ditch into the drainage chute, then flows through the drainage culvert at the bottom of the ditch behind the dam, passes through the dam body, flows out from the outlet, and is discharged into the downstream gully. The flood diversion ditch is composed of multiple steel supports, anti-seepage geomembrane and bank slope. One end of the steel support is sharp and inserted into the bank slope. Adjacent steel supports are connected and fixed by support bars. The back of the steel support is hinged with a support rod to support the pile. An anti-seepage geomembrane is laid on the steel support and the bank slope. One side of the anti-seepage geomembrane is wrapped or tied to the top of the steel support, and the other side is fixed to the bank slope with soil nails or concrete strips.

2. The movable flood interception structure according to claim 1 is characterized in that: The anti-seepage geomembrane is made of UV-resistant PE film or HDPE film.

3. The movable flood interception structure according to claim 2, characterized in that: The support bars are steel bar pull bars or flat steel bars.

Images