CN212405027U

CN212405027U - Geomembrane seepage-proofing and drainage structure on upstream surface of gravity dam

Info

Publication number: CN212405027U
Application number: CN202020750360.4U
Authority: CN
Inventors: 张明
Original assignee: Shandong Jianbiao Technology Test And Detection Co ltd
Current assignee: Shandong Jianbiao Technology Test And Detection Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-01-26
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a gravity dam upstream face geomembrane prevention of seepage drainage structures, including dam foundation and dam body, the dam body sets up the top of dam foundation, be provided with the geomembrane barrier on the lateral wall of dam body one side, one side of geomembrane barrier is provided with the concrete barrier, a plurality of drain pipes are installed to the equidistant slope in bottom of concrete barrier, the inside of dam foundation is provided with the retaining cavity, the one end equidistant at retaining cavity top is provided with a plurality of sealed pipe box, the inside one side of retaining cavity is passed through a plurality of outlet pipes are installed to sealed pipe box equidistant, the drain pipe with pass through between the outlet pipe sealed pipe box fixed connection, the one end fixed mounting at dam foundation top has the water pump, the water pump is located the inside of dam body. The utility model discloses a set up a series of structures and make this device have that prevention of seepage water is effectual and automatic with the ponding exhaust characteristics of infiltration.

Description

Geomembrane seepage-proofing and drainage structure on upstream surface of gravity dam

Technical Field

The utility model relates to a gravity dam technical field specifically is a geomembrane prevention of seepage drainage structures on gravity dam upstream face.

Background

The gravity dam is a large-volume water retaining building built by concrete or masonry, the basic section of the gravity dam is a right-angled triangle, and the gravity dam integrally consists of a plurality of dam sections. Under the action of water pressure and other loads, the gravity dam mainly depends on the anti-sliding force generated by the dead weight of the dam body to meet the stability requirement, meanwhile, the pressure generated by the dead weight of the dam body is used for offsetting the tensile stress caused by the water pressure to meet the strength requirement, under the action of the water pressure and other external loads, the gravity dam mainly depends on the dead weight of the dam body to maintain the stable dam, the section of the gravity dam is basically triangular, the dam material is concrete or masonry stone, according to statistics, the gravity dam usually occupies a larger proportion in various dam types in the dam built in various countries, in the dam worker construction in China, the concrete gravity dam also occupies a larger proportion, and in a high dam with the height of 20 seats and the height of more than 100m, the concrete gravity dam has 10 seats.

The gravity dam body concrete has certain seepage-proofing capacity, but the gravity dam with a higher water head or higher seepage-proofing grade is generally provided with special seepage-proofing concrete at the upstream face so as to reduce the overall construction investment and the overall construction quality control requirement, but the existing seepage-proofing treatment of the dam body by arranging the seepage-proofing concrete layer is very easy to form seepage gaps, water entering the dam body through the seepage gaps cannot be timely discharged, and accumulated water in the dam body is easy to increase more and more over a long time, so that the use effect of the dam body is poor, therefore, the seepage-proofing and drainage structure of the geomembrane at the upstream face of the gravity dam is provided for solving the series of problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a geomembrane prevention of seepage drainage structures of gravity dam upstream face to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a gravity dam upstream face geomembrane prevention of seepage drainage structures, includes dam foundation and dam body, the dam body sets up the top of dam foundation, be provided with the geomembrane barrier on the lateral wall of dam body one side, one side of geomembrane barrier is provided with the concrete barrier, a plurality of drain pipes are installed to the equidistant slope in bottom of concrete barrier, the inside of dam foundation is provided with the retaining cavity, the one end of retaining cavity top is equidistant to be provided with a plurality of sealed pipe box, one side of the inside of retaining cavity is passed through sealed pipe box is equidistant to install a plurality of outlet pipes, pass through sealed pipe box fixed connection between drain pipe and the outlet pipe, the one end fixed mounting at dam foundation top has the water pump, the water pump is located the inside of dam body, the bottom of water pump is provided with the pipe that absorbs water, the pipe passes through sealed pipe box extends to the inside bottom of retaining cavity, and a water outlet pipe is obliquely arranged at the top of the water pump.

Preferably, the inside intermediate position department fixed mounting of retaining cavity has a superficial heavy section of thick bamboo, the inside of superficial heavy section of thick bamboo is provided with the floater, just the top of superficial heavy section of thick bamboo is provided with shift knob, shift knob with pass through wire electric connection between the water pump.

Preferably, a plurality of water seepage holes are arranged on the side walls of the two sides of the floating and sinking cylinder at equal intervals.

Preferably, a plurality of anchor rods are arranged on the geomembrane impermeable layer, and the geomembrane impermeable layer is fixedly installed on the side wall of one side of the dam body through the anchor rods.

Preferably, the top of outlet pipe is provided with universal pipe connection spare, the top of outlet pipe is passed through universal pipe connection spare is connected with the shower, a plurality of shower nozzle is installed to the bottom of shower equidistant.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization, through be provided with the geomembrane barrier layer on the lateral wall in dam body one side, one side of geomembrane barrier layer is provided with the concrete barrier layer, make the effectual of this device prevention of seepage water, and can make the water of infiltration get into the inside of retaining cavity through the drain pipe, and along with the water that gets into more and more, make the inside floater of a sink-float section of thick bamboo rise, then extrude shift knob when rising to the sink-float section of thick bamboo top, make the water pump open, and then make the water pump through the inside water suction of suction pipe with the retaining cavity, and through the outlet pipe, shower and shower nozzle blowout, and then make the water discharge that this device can be automatic will seep water, prevent that the inside ponding of dykes and dams from.

Drawings

Fig. 1 is a schematic structural view of the whole of the present invention;

FIG. 2 is an enlarged view of the present invention at A in FIG. 1;

fig. 3 is a side view of the present invention.

In the figure: 1. a dam foundation; 2. a dam body; 3. a geomembrane barrier layer; 4. a concrete barrier layer; 5. a water storage cavity; 6. an anchor rod; 7. a drain pipe; 8. a water pump; 9. a water outlet pipe; 10. a spray head; 11. a universal pipe connection; 12. a shower pipe; 13. a suction pipe; 14. a floating and sinking cylinder; 15. a switch button; 16. a floating ball; 17. a water seepage hole; 18. a water inlet pipe; 19. and sealing the pipe sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a technical scheme of an upstream geomembrane seepage-proofing and drainage structure of a gravity dam comprises a dam foundation 1 and a dam body 2, wherein the dam body 2 is arranged at the top of the dam foundation 1, a geomembrane seepage-proofing layer 3 is arranged on the side wall of one side of the dam body 2, a concrete seepage-proofing layer 4 is arranged on one side of the geomembrane seepage-proofing layer 3, a plurality of drainage pipes 7 are obliquely arranged at the bottom end of the concrete seepage-proofing layer 4 at equal intervals, a water storage cavity 5 is arranged in the dam foundation 1, a plurality of sealing pipe sleeves 19 are arranged at equal intervals at one end of the top of the water storage cavity 5, a plurality of drainage pipes 9 are arranged at one side of the inner part of the water storage cavity 5 at equal intervals through the sealing pipe sleeves 19, the drainage pipes 7 are fixedly connected with the drainage pipes 9 through the sealing pipe sleeves 19, a water pump 8 is fixedly arranged at one end of the top of the dam foundation 1, the water pump 8 is positioned, the top of the water pump 8 is obliquely provided with a water outlet pipe 9.

Preferably, a floating and sinking cylinder 14 is fixedly mounted at the middle position inside the water storage cavity 5, a floating ball 16 is arranged inside the floating and sinking cylinder 14, a switch button 15 is arranged at the top end of the floating and sinking cylinder 14, the switch button 15 is electrically connected with the water pump 8 through a wire, the more water inside the water storage cavity 5 is accumulated, the more the floating ball 16 rises, and the switch button 15 is extruded by the floating ball 16, so that the water pump 8 is turned on.

Preferably, a plurality of water seepage holes 17 are arranged on the side walls of the two sides of the floating and sinking cylinder 14 at equal intervals, so that the floating ball 16 can rise along with the rise of the water level in the water storage cavity 5.

Preferably, a plurality of anchor rods 6 are arranged on the geomembrane impermeable layer 3, and the geomembrane impermeable layer 3 is fixedly installed on the side wall of one side of the dam body 2 through the anchor rods 6, so that the geomembrane impermeable layer 3 is firmly installed.

Preferably, the top of outlet pipe 9 is provided with universal pipe connection 11, and the top of outlet pipe 9 is connected with shower 12 through universal pipe connection 11, and a plurality of shower nozzle 10 is installed to the equidistant bottom of shower 12, and then makes the interior design of this device reasonable, and the water of retaining cavity 5 inside can be discharged.

The working principle is as follows: before use, the safety of each structure of the device is checked, wherein the water pump 8 is an existing electrical element, the device can be installed and used according to the actual use requirement, the side wall at one side of the dam body 2 is provided with the geomembrane impervious layer 3, one side of the geomembrane impervious layer 3 is provided with the concrete impervious layer 4, so that the device has good water seepage prevention effect, and the infiltrated water can enter the interior of the water storage cavity 5 through the water discharge pipe 7, and as the entering water is increased, the floating ball 16 in the floating and sinking cylinder 14 is lifted, when the water pump ascends to the top end of the floating and sinking cylinder 14, the switch button 15 is pressed, so that the water pump 8 is switched on, so that the water pump 8 sucks water in the water storage cavity 5 through the water suction pipe 13 and sprays the water out through the water outlet pipe 9, the spray pipe 12 and the spray head 10, and then make this device can be automatic with the drainage of infiltration, prevent that dykes and dams inside ponding from too much influencing dykes and dams life.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus, and any standard components found in known art that may be commercially available or commercially available and may be readily customized based on the teachings of the specification and the drawings, and that the particular connection between the various components is by conventional means well known in the art, and that the machine, component, or apparatus is by model and circuit connection is by conventional means well known in the art, and will not be described in detail herein.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a geomembrane prevention of seepage drainage structures of gravity dam upstream face, includes dam foundation (1) and dam body (2), its characterized in that: the dam body (2) is arranged at the top of the dam foundation (1), a geomembrane impervious layer (3) is arranged on the side wall of one side of the dam body (2), one side of the geomembrane impervious layer (3) is provided with a concrete impervious layer (4), a plurality of drain pipes (7) are obliquely arranged at equal intervals at the bottom end of the concrete impervious layer (4), a water storage cavity (5) is arranged in the dam foundation (1), a plurality of sealing pipe sleeves (19) are arranged at equal intervals at one end of the top of the water storage cavity (5), a plurality of water outlet pipes (9) are arranged at equal intervals at one side of the interior of the water storage cavity (5) through the sealing pipe sleeves (19), the drain pipes (7) are fixedly connected with the water outlet pipes (9) through the sealing pipe sleeves (19), and a water pump (8) is fixedly arranged at one end of the top of the dam foundation (1), the water pump (8) is located the inside of dam body (2), the bottom of water pump (8) is provided with absorbs water pipe (13), absorb water pipe (13) are passed through sealed pipe box (19) extend to the inside bottom of retaining cavity (5), outlet pipe (9) are installed in the top slope of water pump (8).

2. The geomembrane seepage-proofing and drainage structure for the upstream surface of the gravity dam as claimed in claim 1, wherein: the water storage cavity (5) is internally and fixedly provided with a floating and sinking cylinder (14) at the middle position, a floating ball (16) is arranged in the floating and sinking cylinder (14), a switch button (15) is arranged at the top end of the floating and sinking cylinder (14), and the switch button (15) is electrically connected with the water pump (8) through a wire.

3. The geomembrane seepage-proofing and drainage structure for the upstream face of the gravity dam as claimed in claim 2, wherein: a plurality of water seepage holes (17) are arranged on the side walls of the two sides of the floating and sinking cylinder (14) at equal intervals.

4. The geomembrane seepage-proofing and drainage structure for the upstream surface of the gravity dam as claimed in claim 1, wherein: the geomembrane impervious layer (3) is provided with a plurality of anchor rods (6), and the geomembrane impervious layer (3) is fixedly arranged on the side wall of one side of the dam body (2) through the anchor rods (6).

5. The geomembrane seepage-proofing and drainage structure for the upstream surface of the gravity dam as claimed in claim 1, wherein: the top of outlet pipe (9) is provided with universal pipe connection spare (11), the top of outlet pipe (9) is passed through universal pipe connection spare (11) are connected with shower (12), a plurality of shower nozzle (10) are installed to the equidistant bottom of shower (12).