CN209760148U - Emergency protection structure for dam back slope - Google Patents
Emergency protection structure for dam back slope Download PDFInfo
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- CN209760148U CN209760148U CN201920470104.7U CN201920470104U CN209760148U CN 209760148 U CN209760148 U CN 209760148U CN 201920470104 U CN201920470104 U CN 201920470104U CN 209760148 U CN209760148 U CN 209760148U
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- dam
- seepage
- hook
- slope
- couple
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
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Abstract
The utility model discloses an emergent protective structure for dam back of body slope belongs to hydraulic engineering technical field, including the wave wall, the couple, the compound geotechnological material of anticrease seepage prevention of dorsal scale slope and scour resistance, lay on wave wall and back of body slope along dam axis direction through the compound geotechnological material of polylith scour prevention of seepage prevention, and fix through couple and stud, can effectively resist high velocity flow and erode, prevention of seepage and protection dam foundation and lifting and defending the native building stones, prevent to appear overtopping and erode even leading to reservoir dam to burst because meet with and exceed design standard flood, the emergence of the critical circumstances such as dyke breach. And the anti-scouring and anti-seepage composite geotechnical material can be recycled and stored after the flood discharge is finished, so that the recycling rate is high. In a word, the utility model has the characteristics of construction method is simple, construction speed is fast and reuse rate is high.
Description
Technical Field
The utility model relates to a hydraulic engineering technical field specifically relates to an emergent protective structure for dam back of body water slope.
background
The earth-rock dam and the lifting defense are water retaining buildings which are widely applied in hydraulic engineering and have excellent benefits, the earth-rock dam has the advantages of low material requirements, local materials, simplicity in construction process compared with a concrete gravity dam and an arch dam, strong adaptability to deformation of a dam body and the like in the construction process, and meanwhile, the environmental, social and economic benefits of the earth-rock dam and the lifting defense are obvious. However, when the dam and the defense encounter flood which exceeds the design standard, the earth-rock dam and the earth-rock dam are often broken by overtopping and erosion, and even the dam of the reservoir is broken and the dike breaks, thereby bringing huge economic loss and personnel loss to local residents. In order to relieve the situation, the invention designs corresponding emergency protection measures to be carried out on the backwater slope, so that the erosion of overtopping flood to the dam body can be prevented to a great extent, and the risk of overtopping and bursting of the earth-rock dam and the earth-rock embankment is reduced. Therefore, emergency protective measures are additionally arranged on the earth-rock dam and the water slope behind the earth-rock dike, the risk of overtopping and bursting of the earth-rock dam and the earth-rock dike can be greatly reduced, the occurrence of bursting of the earth-rock dam and the earth-rock dike is reduced, and the life safety and property safety of people at the downstream and at two banks are guaranteed to a certain extent.
SUMMERY OF THE UTILITY MODEL
in order to solve the technical problem, the utility model provides an emergent protective structure for dam back of body water slope.
The technical scheme of the utility model is that:
An emergency protection structure for a dam back slope comprises a wave wall, a hook, a back slope and an anti-scouring and anti-seepage composite geotechnical material, wherein the hook is arranged on the wave wall, the hook head faces one side of the water slope, a hook hole is formed in the anti-scouring and anti-seepage composite geotechnical material, a plurality of anti-scouring and anti-seepage composite geotechnical materials are sequentially and continuously spliced and laid on the wave wall and the back slope from left to right and hung on the hook through the hook hole, the hook can be automatically locked after being hooked, an overlapping amount of 20cm-25cm is arranged between every two adjacent anti-scouring and anti-seepage composite geotechnical materials to form an overlapping area, a plurality of through holes are formed in the two anti-scouring and anti-seepage composite geotechnical materials in the overlapping area at equal intervals along the length direction of the overlapping area, and the two adjacent anti-scouring and anti-seepage composite geotechnical materials are fixed together by a stud penetrating, and sealing rings are arranged between the stud bolts and the two layers of anti-scouring and anti-seepage composite geotechnical materials.
Furthermore, the hook is embedded and connected with the wave wall to ensure the stability of the hook.
Furthermore, a drill hole is formed in the wave wall, the hook penetrates through the wave wall through the drill hole, a fastening bolt is arranged at the rear end of the hook, a baffle and a self-locking device are arranged at the front end of the hook, and the self-locking device can seal the hook head to prevent the composite geotechnical material from unhooking when flood is discharged.
Further, the offset of the hook arrangement is controlled between 1% -4% to ensure that the overlap of each composite is within a suitable range.
Furthermore, the anti-scouring and anti-seepage composite geotechnical material is formed by compounding three layers of materials, namely PET cloth, geomembrane and geotechnical cloth from top to bottom, is specifically manufactured by high-temperature extrusion, and has the advantages of high-speed water flow scouring resistance, seepage prevention, dam foundation protection, soil and stone material prevention and the like. The size of the anti-scouring and anti-seepage composite geotechnical material is determined according to the height of a backwater slope, the slope ratio and the rain collecting area.
The utility model discloses a construction method does:
And determining the size of the anti-scouring and anti-seepage composite material and the distribution density of the hooks according to the earth-rock dam, the slope ratio of the back water of the earth-rock dam, the dam height and the rainwater collection area of the reservoir.
And drilling holes in the wave wall according to the determined hook density, fixing the hooks after drilling through the drilled holes by using bolts, determining the diameter of the hooks according to the dam height and the rain collecting area, and sequentially installing the hooks required by the whole dam body by the same method. Special attention is paid to ensure that the hook is parallel to the axis of the dam during installation, and the offset is controlled to be between 1 and 4 percent.
and (3) transferring the anti-scouring and anti-seepage composite geotechnical material to enable the dam crest to be hooked with the hook, then rolling down from top to bottom, adjusting the dam bottom to be tightly combined with the dam body and the waterproof backing slope after the rolling down, and sequentially laying by the method, wherein the coincidence rate of every two composite materials is controlled to be 20-25cm during laying.
And finally, whether the anti-scouring and anti-seepage composite material is connected with the hook or not is checked, whether the hook is self-locked or not is checked, and the unhooking phenomenon is prevented from occurring when overtopping flood is discharged, so that the safety of the overtopping flood is ensured.
The utility model has the advantages that: the utility model discloses a polylith antiscour antiseep composite geotechnique material is laid on wave wall and back water slope along dam axis direction to fix through couple and stud, can effectively resist high-speed rivers and erode, prevention of seepage and protection dam foundation and carry out the native building stones of defence, prevent because meet with and exceed the emergence that overtop erosion destroyed even leads to reservoir dam to burst, dyke crisis circumstances such as burst because flood appears. And the anti-scouring and anti-seepage composite geotechnical material can be recycled and stored after the flood discharge is finished, so that the recycling rate is high. In a word, the utility model has the characteristics of construction method is simple, construction speed is fast and reuse rate is high.
Drawings
Fig. 1 is a schematic structural view of the anti-scouring and anti-seepage composite geotextile material laid by the utility model;
FIG. 2 is a schematic view of the hook structure of the present invention;
FIG. 3 is a schematic structural view of the hook of the present invention;
Fig. 4 is a schematic structural view of the anti-scour and anti-seepage composite geotextile material of the present invention;
Wherein, the construction method comprises the steps of 1-wave wall prevention, 2-hook, 21-bolt, 22-baffle, 23-self-locking device, 3-backwater slope, 4-scour prevention and seepage prevention composite geotechnical material, 41-overlapping area and 5-hook hole.
Detailed Description
as shown in fig. 1, the emergency protective structure for the dam back slope comprises a wave wall 1, a hook 2, a back slope 3 and an anti-scouring and anti-seepage composite geotechnical material 4, wherein the hook 2 is arranged on the wave wall 1, the hook head faces one side of the water slope, a hook hole 5 is arranged on the anti-scouring and anti-seepage composite geotechnical material 4, a plurality of anti-scouring and anti-seepage composite geotechnical materials 4 are sequentially and continuously spliced and laid on the wave wall 1 and the back slope 3 from left to right and hung on the hook 2 through the hook hole 5, the hook 2 can be automatically locked after the hooking is completed, an overlapping amount of 20cm is arranged between two adjacent anti-scouring and anti-seepage composite geotechnical materials 4 to form an overlapping area 41, a plurality of through holes are arranged on the two anti-scouring and anti-seepage composite geotechnical materials 4 in the overlapping area 41 at equal intervals along the length direction of the overlapping area 41, the two adjacent anti-scouring and anti-seepage composite geotechnical materials 4 are fixed together by a stud passing, and sealing rings are arranged between the stud bolts and the two layers of anti-scouring and anti-seepage composite geotechnical materials 4.
as shown in fig. 2, a drill hole is formed in the wave wall 1, the hook 2 penetrates through the wave wall 1 through the drill hole, a fastening bolt 21 is arranged at the rear end of the hook 2, a baffle 22 and a self-locking device 23 are arranged at the front end of the hook 2, and the self-locking device 23 can seal the hook head to prevent the composite geotechnical material from unhooking when the composite geotechnical material is released under flood. The offset of the hook 2 placement is controlled to be 4% to ensure that the amount of overlap of each composite is within a suitable range.
The anti-scouring and anti-seepage composite geotechnical material 4 is made of three layers of materials, namely PET cloth, geomembrane and geotextile, through high-temperature extrusion, and has the advantages of high-speed water flow scouring resistance, seepage prevention, dam foundation protection, soil and stone material prevention and the like. The size of the anti-scouring and anti-seepage composite geotechnical material 4 is determined according to the height of a backwater slope, the slope ratio and the rain collecting area.
The utility model discloses a polylith antiscour antiseepage composite geotechnique material 4 lays on wave wall 1 and back water slope 3 along dam axis direction to fix through couple and stud, can effectively resist high-speed rivers and erode, prevention of seepage and protection dam foundation and carry out the native building stones of defence, prevent because meet with and exceed the emergence of dangerous situations such as design standard flood overtopping erosion damage appears and lead to reservoir dam bursting even, dyke breach. And the anti-scouring and anti-seepage composite geotechnical material 4 can be recycled and stored after the flood discharge is finished, so that the recycling rate is high. In a word, the utility model has the characteristics of construction method is simple, construction speed is fast and reuse rate is high.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (5)
1. The utility model provides an emergent protective structure for dam back of body slope, its characterized in that, including wave wall (1), couple (2), back of body slope (3) and antiscour anti-seepage control combined geotechnological material (4), couple (2) set up on wave wall (1) and the one side of couple head towards the headwater slope, be equipped with couple hole (5) on antiscour anti-seepage control combined geotechnological material (4), polylith antiscour anti-scour anti-seepage control combined geotechnological material (4) splice in proper order from a left side to the right side and lay on wave wall (1) and back of body slope (3) to hang on couple (2) through couple hole (5), couple (2) can lock after the completion articulates, are equipped with 20cm-25 cm's overlap volume between two adjacent antiscour anti-seepage control combined geotechnological materials (4) by oneself to form overlap area (41), are equipped with a plurality of through-holes along overlap area (41) length direction equidistant on two anti-seepage control combined geotechnological materials (4) in overlap area (41) by oneself Two adjacent anti-scouring and anti-seepage composite geotechnical materials (4) are fixed together by the aid of the stud bolts penetrating through the two overlapped through holes, and sealing rings are arranged between the stud bolts and the two layers of anti-scouring and anti-seepage composite geotechnical materials (4).
2. Emergency protective structure for the dam back slope according to claim 1, characterized in that said hook (2) is connected with the wave wall (1) in an inlaid manner.
3. The emergency protection structure for the dam back slope as claimed in claim 2, wherein a drilling hole is formed in the wave wall (1), the hook (2) penetrates through the wave wall (1) through the drilling hole, a fastening bolt (21) is arranged at the rear end of the hook, a baffle (22) and a self-locking device (23) are arranged at the front end of the hook (2), and the self-locking device (23) can seal the hook head.
4. Emergency protective structure for the dam tailback slope according to claim 1, characterized in that the offset amount of the hook (2) arrangement is controlled between 1-4%.
5. The emergency protective structure for the dam back slope according to claim 1, characterized in that the scouring-resistant and seepage-proof composite geotextile material (4) is formed by compounding three layers of PET cloth, geomembrane and geotextile from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920470104.7U CN209760148U (en) | 2019-04-09 | 2019-04-09 | Emergency protection structure for dam back slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920470104.7U CN209760148U (en) | 2019-04-09 | 2019-04-09 | Emergency protection structure for dam back slope |
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| Publication Number | Publication Date |
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| CN209760148U true CN209760148U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920470104.7U Active CN209760148U (en) | 2019-04-09 | 2019-04-09 | Emergency protection structure for dam back slope |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813920A (en) * | 2021-01-07 | 2021-05-18 | 河海大学 | Emergency rescue device for preventing overtopping damage of dike and earth dam and construction method |
| CN114120590A (en) * | 2021-11-08 | 2022-03-01 | 四川农业大学 | Damming dam burst risk grading and early warning method based on different burst modes |
-
2019
- 2019-04-09 CN CN201920470104.7U patent/CN209760148U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813920A (en) * | 2021-01-07 | 2021-05-18 | 河海大学 | Emergency rescue device for preventing overtopping damage of dike and earth dam and construction method |
| CN114120590A (en) * | 2021-11-08 | 2022-03-01 | 四川农业大学 | Damming dam burst risk grading and early warning method based on different burst modes |
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