CN215105104U

CN215105104U - Water conservancy and hydropower engineering hole internal water diversion and drainage structure

Info

Publication number: CN215105104U
Application number: CN202120870788.7U
Authority: CN
Inventors: 王跃刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-12-10
Anticipated expiration: 2031-04-26

Abstract

The utility model discloses a water conservancy and hydropower technical field's water conservancy diversion drainage structures in hydraulic and hydropower engineering hole, including engineering hole and stratum, the stratum is located the outside of engineering hole, the inboard arc of stratum is provided with preliminary bracing, the inboard of preliminary bracing is installed multiunit buffering waterproof layer, the inner chamber of preliminary bracing is fixed and is provided with the drainage blind pipe, and one side and the stratum fixed connection of drainage blind pipe, the inboard fixed secondary bracing that is provided with of buffering waterproof layer, the outlet channel has all been run through to the left and right sides of secondary bracing and buffering waterproof layer, the inner wall of outlet channel is equipped with the outlet pipe, one side that the outlet channel is close to the preliminary bracing is provided with the inverted filter, the drainage blind pipe passes through inverted filter and outlet channel intercommunication, engineering hole's inner chamber bottom both sides all have seted up the escape canal, and the device is effectual avoids the stratum to ooze the influence of construction, and meanwhile, the support capability of the rock stratum is enhanced, and the safety performance of the engineering hole is improved.

Description

Water conservancy and hydropower engineering hole internal water diversion and drainage structure

Technical Field

The utility model relates to a hydraulic and hydroelectric engineering technical field specifically is a water conservancy and hydroelectric engineering hole in water conservancy diversion drainage structures.

Background

Water is a basic element that human beings rely on for survival, electric power is a main source of social development, hydraulic and hydroelectric engineering is important infrastructure and basic industry in the social progress and economic development process, has irreplaceable effect in the social development, along with the continuous development of economy, the hydraulic and hydroelectric industry in China also obtains small performance, the hydraulic and hydroelectric engineering also begins to develop towards large-scale, diversification and universalization, in the construction of the hydraulic and hydroelectric engineering, engineering holes are usually required to be excavated, but some engineering holes have the phenomenon of water seepage caused by improper building construction or underground water seepage, if the water seepage cannot be timely treated, the equipment in the holes can be corroded, the normal construction of constructors can be influenced, and because the support measures of the engineering holes are insufficient, the water in the holes can erode rock strata, so that the rock strata of the engineering holes are cracked, even collapse risks occur, so that the life safety of constructors is endangered, and for the reason, a flow guide and drainage structure in a water conservancy and hydropower engineering hole is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a water conservancy and hydropower engineering hole in water conservancy diversion drainage structures, because the improper or groundwater infiltration of construction is responsible for in the engineering hole that proposes in solving above-mentioned background art, and then lead to the phenomenon that the infiltration appears in the hole, if the processing that these infiltration can not be timely, not only can corrode the equipment in the hole, still can influence constructor's normal construction, and because the supporting measure in engineering hole is not enough, moisture in the hole can corrode the stratum, and then the inner wall that leads to the engineering hole takes place the fracture, the danger of collapsing appears even, thereby endanger constructor's life safety's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a water conservancy diversion drainage structures in hydraulic and hydroelectric engineering hole installs on the rock stratum wall of seting up the engineering hole, including installing preliminary bracing on the inboard arc of stratum, multiunit buffering waterproof layer is installed to preliminary bracing's inboard, the fixed multiunit drainage blind pipe that is provided with of inner chamber of preliminary bracing, and one side and the stratum fixed connection of drainage blind pipe, the fixed secondary that is provided with of inboard of buffering waterproof layer is strutted, the secondary is strutted and the left and right sides of buffering waterproof layer has all run through the outlet, the inner wall of outlet is provided with the outlet pipe, one side that the outlet is close to the preliminary bracing is provided with the reverse filtration layer, the reverse filtration layer is located the inner chamber of preliminary bracing, the drainage blind pipe passes through reverse filtration layer and outlet intercommunication, the escape canal has all been seted up to the inner chamber bottom both sides of engineering hole.

Preferably, the buffering waterproof layer is including setting up the geotechnological cloth layer at the preliminary bracing inboard, the inboard on geotechnological cloth layer is provided with the thermoplasticity circle packing ring, the concave surface laminating of thermoplasticity circle packing ring has the metal packing ring, one side that the geotechnological cloth layer was kept away from to the metal packing ring runs through has penetrates the nail, and metal packing ring and geotechnological cloth layer fix on the preliminary bracing through penetrating the nail, one side welding that geotechnological cloth layer was kept away from to the thermoplasticity circle packing ring has the waterproof layer.

Preferably, the outer wall of the drainage blind pipe is coated with a water seepage material layer, the drainage blind pipe is fixed through a buckle and expansion bolts, and the distance between every two adjacent expansion bolts is 30-50 cm.

Preferably, the reverse filtering layer is 2-4 layers of sand, gravel or pebbles with different particle sizes, and the particles are gradually increased along the direction of the drainage holes.

Preferably, the splicing position between two adjacent groups of the buffer waterproof layers is sequentially filled with a concrete layer and a water stop strip, and the water stop strip is fixed on the concrete layer through a cement nail.

Preferably, the surface laminating of escape canal has waterproof concrete layer, and the escape canal reduces along the direction slope of entrance to a cave gradually.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up the drainage blind pipe and can introduce the outlet through the inverted filter with the infiltration in the stratum both sides, and then the drain pipe in the outlet will seep water along the inboard flow direction escape canal that the secondary was strutted, discharge outside the hole from the escape canal again, the infiltration at stratum top passes through the drainage blind pipe and flows to both sides along the outside of buffering waterproof board, again from the outlet flow direction escape canal, geotechnological cloth has good water conductivity, the waterproof layer possesses puncture resistance, flexibility is good, durability and fire resistance's characteristics, avoided because the stratum infiltration leads to equipment corrosion in the engineering hole, and then influence the problem that the constructor normally was under construction.

2. The utility model discloses be provided with preliminary bracing and secondary support, the preliminary bracing can control proper amount release of rock stratum stress and deformation, the self-stabilization ability of full play rock stratum, through the naked leaky surface of the closed rock stratum that preliminary bracing can be timely, both can make the intensity of rock stratum can not expose the morals and manners because of the excavation, reduce strength, moisture in the prevention hole that can also be timely causes further erosion to the rock stratum, the secondary bracing has constituted "superposed beams" structure with the preliminary bracing, the deformation of the control rock stratum that the secondary bracing can be further, improve the security performance in engineering hole, the phenomenon that the rock stratum of having avoided the engineering hole appears splitting or even sinks, constructor's life safety has been guaranteed.

Drawings

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

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 3 is a schematic structural view of a buffering and waterproof layer.

In the figure: 1. an engineering hole; 2. a rock formation; 3. primary support; 4. a buffering waterproof layer; 41. a geotextile layer; 42. a thermoplastic circular gasket; 43. shooting a nail; 44. a metal washer; 45. a waterproof layer; 5. a drainage blind pipe; 6. secondary supporting; 7. a water drain hole; 8. a water outlet pipe; 9. a reverse filtering layer; 10. and (7) a drainage ditch.

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, the present invention provides a technical solution: the utility model provides a water conservancy diversion drainage structures in hydroelectric engineering hole, installs on the 2 walls of stratum of seting up engineering hole 1, including installing preliminary bracing 3 on the inboard arc of stratum 2, preliminary bracing 3 includes reinforcing bar net, stock, steel support and shotcrete etc. preliminary bracing 3 is a flexible support system, restricts the deformation of stratum to a certain extent, and it closely laminates with stratum 2, consolidates stratum 2, and preliminary bracing 3's leakproofness is better simultaneously, can effectual protection stratum 2 not receive the further erosion of morals and manners and moisture in the hole.

Referring to fig. 1-2, a plurality of groups of buffer waterproof layers 4 are installed on the inner side of a primary support 3, a plurality of groups of drainage blind pipes 5 are fixedly arranged in the inner cavity of the primary support 3, one side of each drainage blind pipe 5 is fixedly connected with a rock stratum 2, each drainage blind pipe 5 has high surface water seepage capability and internal water through capability, the primary support 3 is light in weight, convenient to construct and long in service life, the drainage blind pipes 5 can be arranged in a position where the rock stratum 2 is high in water seepage in an encrypted manner, a secondary support 6 is fixedly arranged on the inner side of each buffer waterproof layer 4, each secondary support 6 and the primary support 3 form a superposed beam structure, each secondary support can further control the deformation of the rock stratum 2 and improve the safety performance of an engineering cave, water drainage holes 7 penetrate through the left side and the right side of each secondary support 6 and each buffer waterproof layer 4 to guide out the water seepage on the rock stratum 2, a water outlet pipe 8 is arranged on the inner wall of each water drainage hole 7, the outlet pipe 8 can adopt the PVC water pipe, one side that the outlet sluice gate 7 is close to preliminary bracing 3 is provided with the inverted filter 9, the unobstructed discharge of infiltration is guaranteed to the inverted filter 9, make the seepage flow energy in the stratum 2 release, reach the effect of drainage decompression, the inverted filter 9 is located the inner chamber of preliminary bracing 3, drainage blind pipe 5 passes through inverted filter 9 and outlet sluice gate 7 intercommunication, escape canal 10 has all been seted up to the inner chamber bottom both sides of engineering hole 1, the infiltration that will follow the outlet sluice gate 7 and discharge outside the hole.

Referring to fig. 3, the buffering waterproof layer 4 includes a geotextile layer 41 disposed inside the primary support 3, the geotextile layer 41 has a deformation capability adapted to the primary support 3 due to load or temperature change and has good water conductivity, a thermoplastic circular gasket 42 is disposed inside the geotextile layer 41, a metal gasket 44 is attached to a concave surface of the thermoplastic circular gasket 42, a shot nail 43 penetrates through one side of the metal gasket 44 away from the geotextile layer 41, the metal gasket 44 and the geotextile layer 41 are fixed on the primary support 3 by the shot nail 43, a waterproof layer 45 is welded on one side of the thermoplastic circular gasket 42 away from the geotextile layer 41, and the waterproof layer 45 has characteristics of puncture resistance, good flexibility, good durability and certain flame retardancy.

The outer wall cladding of drainage blind pipe 5 has the infiltration material layer, prevents that silt particle, injection concrete material or debris etc. from getting into and blockking up the pipeline, and drainage blind pipe 5 is fixed through buckle and expansion bolts, and the interval of adjacent expansion bolts is 30-50cm for the accurate reasonable of drainage blind pipe 5's position.

Referring to fig. 2, the back filter 9 is 2-4 layers of sand, gravel or pebble with different particle sizes, and the particles gradually increase along the direction of the drainage hole 7, and the back filter 9 can prevent the further expansion of erosion damage generated by the crack under the action of water seepage.

The splicing department between two adjacent sets of buffering waterproof layers 4 is filled with concrete layer and sealing rod in proper order, and the sealing rod has good leakproofness and waterproof nature, forms the recess behind the concrete placement, and the degree of depth in the groove is half of sealing rod thickness, and the width is unanimous with the sealing rod, clears up the recess, clears away the residue, polishes the cell wall to paint the adhesive, the sealing rod passes through the cement nail to be fixed on the recess.

Referring to fig. 1, the surface of the drainage ditch 10 is adhered with a waterproof concrete layer, and the slope of the drainage ditch 10 gradually decreases along the direction of the opening of the hole, so that the accumulated water in the drainage ditch 10 can be drained out of the hole.

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 water conservancy and hydropower engineering hole in water conservancy diversion drainage structures installs on rock stratum (2) wall of seting up engineering hole (1), its characterized in that: the water drainage device comprises a primary support (3) installed on the inner side of an arc of a rock stratum (2), a plurality of groups of buffer waterproof layers (4) are installed on the inner side of the primary support (3), a plurality of groups of drainage blind pipes (5) are fixedly arranged in an inner cavity of the primary support (3), one side of each drainage blind pipe (5) is fixedly connected with the rock stratum (2), a secondary support (6) is fixedly arranged on the inner side of each buffer waterproof layer (4), drainage holes (7) penetrate through the left side and the right side of each secondary support (6) and the corresponding buffer waterproof layer (4), a water outlet pipe (8) is arranged on the inner wall of each drainage hole (7), a reverse filter layer (9) is arranged on one side, close to the primary support (3), of each drainage blind pipe (5) and each drainage hole (7) through the corresponding reverse filter layer (9), drainage ditches (10) are respectively arranged on two sides of the bottom of the inner cavity of the engineering hole (1).

2. The water conservancy and hydropower engineering tunnel water diversion and drainage structure of claim 1, which is characterized in that: buffer waterproof layer (4) are including setting up geotechnological cloth layer (41) at preliminary bracing (3) inboard, the inboard of geotechnological cloth layer (41) is provided with thermoplasticity round washer (42), the concave surface laminating of thermoplasticity round washer (42) has metal packing ring (44), one side that geotechnological cloth layer (41) were kept away from in metal packing ring (44) runs through has penetrates nail (43), and metal packing ring (44) and geotechnological cloth layer (41) are fixed on preliminary bracing (3) through penetrating nail (43), one side welding that geotechnological cloth layer (41) were kept away from in thermoplasticity round washer (42) has waterproof layer (45).

3. The water conservancy and hydropower engineering tunnel water diversion and drainage structure of claim 1, which is characterized in that: the outer wall cladding of drainage blind pipe (5) has the infiltration material layer, drainage blind pipe (5) are fixed through buckle and expansion bolts, and adjacent expansion bolts's interval is 30-50 cm.

4. The water conservancy and hydropower engineering tunnel water diversion and drainage structure of claim 1, which is characterized in that: the inverted filter layer (9) is composed of 2-4 layers of sand, gravel or pebble with different particle sizes, and the particles are gradually increased along the direction of the drainage hole (7).

5. The water conservancy and hydropower engineering tunnel water diversion and drainage structure of claim 1, which is characterized in that: and the splicing part between two adjacent groups of the buffer waterproof layers (4) is sequentially filled with a concrete layer and a water stop strip, and the water stop strip is fixed on the concrete layer through a cement nail.

6. The water conservancy and hydropower engineering tunnel water diversion and drainage structure of claim 1, which is characterized in that: the surface laminating of escape canal (10) has waterproof concrete layer, and escape canal (10) reduce along the direction slope of entrance to a cave gradually.