CN215860170U

CN215860170U - Water-inrush-preventing structure for tunnel construction

Info

Publication number: CN215860170U
Application number: CN202122435969.XU
Authority: CN
Inventors: 田奇; 刘雪山; 陈曦明; 孙传多; 刘伦; 王闯; 王森; 麻晓妮
Original assignee: Sinohydro Bureau 1 Co Ltd
Current assignee: Sinohydro Bureau 1 Co Ltd
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-02-18
Anticipated expiration: 2031-10-11

Abstract

The utility model discloses a tunnel construction water inrush prevention structure, which comprises an anchor rod structure, a conveying hose connected with the anchor rod structure, and a refrigerating fluid storage tank connected with one end of the conveying hose, which is far away from the anchor rod structure; the anchor rod structure comprises a plurality of anchor rods which are butted up and down, wherein a liquid outlet device is arranged at the bottom of the anchor rod positioned below the anchor rod, an end cover is connected to the upper end of the anchor rod positioned above the anchor rod in a threaded manner, and a connecting pipe is arranged at the upper end of the end cover and is connected with the conveying hose; this device can condense groundwater, reduces and gushes water phenomenon.

Description

Water-inrush-preventing structure for tunnel construction

Technical Field

The utility model relates to a water burst preventing structure for tunnel construction.

Background

At present, high-speed railways, expressways, urban express ways, subways and the like are rapidly developed. In order to facilitate traffic and shorten traffic distance, many remote mountain areas with large relief, complex geological structures and inconvenient arrival inevitably need to excavate underground tunnels or construct tunnel projects penetrating through mountain bodies when constructing railways and highways. The water inrush is a common geological disaster which damages a tunnel greatly and is common in the process of passing through a water-rich fault fracture zone. If water gushes during construction, the working environment is influenced, the stability of the tunnel face is endangered, and the construction quality of primary support is reduced. Especially under the condition of high-pressure water burst, serious safety accidents are often caused.

Therefore, the tunnel construction water-inrush-prevention structure capable of condensing underground water and reducing the water inrush phenomenon is designed for tunnel construction.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a tunnel construction water inrush prevention structure which can condense underground water and reduce the water inrush phenomenon.

The utility model is realized by the following technical scheme:

a tunnel construction water burst prevention structure comprises an anchor rod structure, a conveying hose connected with the anchor rod structure, and a refrigerating fluid storage tank connected to one end, far away from the anchor rod structure, of the conveying hose; the anchor rod structure comprises a plurality of anchor rods which are butted up and down, wherein a liquid outlet device is arranged at the bottom of the anchor rod below the anchor rod, an end cover is in threaded connection with the upper end of the anchor rod above the anchor rod, and a connecting pipe is arranged at the upper end of the end cover and connected with the conveying hose.

Preferably, go out the liquid device and include a conical thorn income end, the upper end of thorn income end is provided with the intubate, the lower extreme of stock is provided with the shoulder hole, the intubate via insert behind the shoulder hole extremely in the stock, it inserts that one end department cooperation in the stock has limit nut, the intubate is provided with out the liquid hole in the position department that is close to the lower part, works as the stock is squeezed into the in-process on ground downwards, intubate rebound, thorn income end contact by spacing behind the stock, this moment go out the liquid hole by the shutoff, when the stock is stabbed to groundwater downwards, the bottom of thorn income end loses the holding power, and in the supply of cryogenic liquids storage tank, prick the end and is pushed down and open, it exposes to go out the liquid hole the outside of stock.

In the technical scheme, the penetrating end can reduce the resistance of the anchor rod inserted into the soil layer downwards. The freezing liquid storage tank is pressurized in advance, a pressure gauge is observed, when a puncturing end reaches the position of underground water, the pressure gauge starts to release pressure, and at the moment, the insertion of the anchor rod is stopped.

Preferably, a sealing washer is mounted at the lower end of the anchor rod, the sealing washer being compressed between the anchor rod and the penetrating end.

The technical scheme is to increase the sealing effect.

Preferably, an annular force-bearing groove is formed in the outer wall of the anchor rod at a position close to the upper part.

The setting of atress groove is the convenience and increases outer clamping structure to the stock, exerts the holding down force through outer clamping structure cooperation pile driving equipment, squeezes the stock into to the groundwater layer in.

Preferably, the refrigerating fluid storage tank includes a tank body the bottom of the tank body is provided with the base, and the bottom annular of base is provided with a plurality of gyro wheels, the upper end of the tank body is provided with the filling tube, the mouth of pipe department threaded connection of filling tube has the tube cap, the upper end of the tank body is provided with the manometer the external wall of the tank be close to top position department and be provided with the intake pipe, through intake-tube connection supercharging equipment, the external wall of the tank be close to bottom position department and install first connecting pipe, first connecting pipe is connected delivery hose.

Preferably, jar external wall department annular is provided with the polylith otic placode, has the stay cord through the otic placode cooperation, the stay cord is kept away from the cooperation has the earth anchor between that one end of otic placode and the ground.

The capacity of the tank body is 5-10 cubic meters.

The coolant tank is used to store coolant or thickener, which can condense the ground water when coolant is used. When the thickening agent is adopted, the property of underground water can be changed, the penetrability of the underground water is reduced, and the technical effect of avoiding water burst is achieved.

The utility model has the beneficial effects that: this device is in practical application, density that can be according to the reasonable selection of actual need distributes, and under the normality, every 5~15 square meters set up this device, and the mode through pouring into the cryogenic fluid solidifies groundwater, after the construction, withdraws from this equipment, and the mobility is resumeed to the groundwater after dissolving, does not influence geological structure, and the structure of this device is comparatively simple, and the cost is comparatively cheap, can effectually avoid gushing the water phenomenon, is fit for using widely.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

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

FIG. 2 is a partial cross-sectional view of FIG. 1 at A;

FIG. 3 is a schematic diagram of a cooling fluid storage tank.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1, 2 and 3, the tunnel construction water inrush preventing structure comprises an anchor rod structure 1, a conveying hose 2 connected with the anchor rod structure 1, and a refrigerating fluid storage tank 3 connected to one end of the conveying hose 2 far away from the anchor rod structure 1; the anchor rod structure 1 comprises a plurality of anchor rods 101 which are butted up and down, wherein a liquid outlet device 4 is arranged at the bottom of the anchor rod 101 which is positioned below the anchor rod structure, an end cover 102 is connected to the upper end of the anchor rod 101 which is positioned above the anchor rod structure in a threaded manner, a connecting pipe 103 is arranged at the upper end of the end cover 102, and the connecting pipe 103 is connected with the conveying hose 2.

In a preferred embodiment of the present invention, the liquid outlet device 4 includes a tapered piercing end 401, an insertion tube 402 is disposed at an upper end of the piercing end 401, a stepped hole is disposed at a lower end of the anchor rod 101, the insertion tube 402 is inserted into the anchor rod 101 through the stepped hole, a limit nut 403 is fitted at an end of the insertion tube inserted into the anchor rod 101, a liquid outlet hole 404 is disposed at a position close to a lower portion of the insertion tube 402, when the anchor rod 101 is driven downward into the ground, the insertion tube 402 moves upward, the piercing end 401 is limited after contacting the anchor rod 101, the liquid outlet hole 404 is blocked, when the anchor rod is driven downward into the ground, a bottom of the piercing end loses a supporting force, and in the supply of the freezing liquid storage tank, the piercing end is pushed downward, and the liquid outlet hole is exposed outside the anchor rod.

A sealing washer 121 is mounted on the lower end of the anchor rod 101, and the sealing washer 121 is compressed between the anchor rod 101 and the penetrating end 401.

The technical scheme is to increase the sealing effect.

In a preferred embodiment of the present invention, an annular force receiving groove 131 is formed in an outer wall of the anchor rod 101 at a position near an upper portion thereof.

In a preferred embodiment of the present invention, the refrigerating fluid storage tank 3 includes a tank 301, a base 302 is disposed at the bottom of the tank 301, a plurality of rollers 303 are annularly disposed at the bottom of the base 302, an injection pipe 304 is disposed at the upper end of the tank 301, a pipe cover 305 is screwed to a pipe orifice of the injection pipe 304, a pressure gauge 306 is disposed at the upper end of the tank 301, an air inlet pipe 307 is disposed at a position close to the top of the outer wall of the tank 301, the air inlet pipe 307 is connected to a pressurization device, a first connecting pipe 343 is disposed at a position close to the bottom of the outer wall of the tank, and the first connecting pipe is connected to the conveying hose.

In a preferred embodiment of the present invention, a plurality of ear plates 331 are annularly disposed on an outer wall of the tank 301, a pull rope 332 is engaged with the ear plates 331, and a ground anchor 333 is engaged between an end of the pull rope 332 far away from the ear plates 331 and the ground.

The tank has a capacity of 9 cubic meters.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a water structure is prevented gushing in tunnel construction which characterized in that: the device comprises an anchor rod structure, a conveying hose connected with the anchor rod structure, and a refrigerating fluid storage tank connected to one end of the conveying hose far away from the anchor rod structure; the anchor rod structure comprises a plurality of anchor rods which are butted up and down, wherein a liquid outlet device is arranged at the bottom of the anchor rod below the anchor rod, an end cover is in threaded connection with the upper end of the anchor rod above the anchor rod, and a connecting pipe is arranged at the upper end of the end cover and connected with the conveying hose.

2. The tunnel construction water burst preventing structure of claim 1, wherein: go out the liquid device and include a conical thorn income end, the upper end of thorn income end is provided with the intubate, the lower extreme of stock is provided with the shoulder hole, the intubate via insert behind the shoulder hole to in the stock, its one end department cooperation that inserts in the stock has stop nut, the intubate is provided with out the liquid hole in the position department that is close to the lower part, works as the stock is squeezed into the in-process on ground downwards, intubate rebound, thorn income end contact behind the stock by spacing, this moment go out the liquid hole by the shutoff, pierce to groundwater when the stock, the bottom of thorn income end loses the holding power, and in the supply of cryogenic fluid storage tank, pierces the end and is pushed up downwards and open, it exposes to go out the liquid hole the outside of stock.

3. The tunnel construction water burst preventing structure of claim 2, wherein: and a sealing washer is arranged at the lower end of the anchor rod and is extruded between the anchor rod and the penetrating end.

4. The tunnel construction water burst preventing structure of claim 2 or 3, wherein: and an annular stress groove is formed in the position, close to the upper part, of the outer wall of the anchor rod.

5. The tunnel construction water burst preventing structure of claim 1, wherein: the refrigerating fluid storage tank comprises a tank body, wherein a base is arranged at the bottom of the tank body, a plurality of idler wheels are annularly arranged at the bottom of the base, an injection pipe is arranged at the upper end of the tank body, a pipe cover is in threaded connection with the pipe orifice of the injection pipe, a pressure gauge is arranged at the upper end of the tank body, an air inlet pipe is arranged at the position, close to the top, of the outer wall of the tank body, a supercharging device is connected through the air inlet pipe, a first connecting pipe is arranged at the position, close to the bottom, of the outer wall of the tank body, and the first connecting pipe is connected with a conveying hose.

6. The tunnel construction water burst preventing structure of claim 5, wherein: the jar external wall department annular is provided with the polylith otic placode, through the otic placode cooperation has the stay cord, the stay cord is kept away from the cooperation has the earth anchor between that one end of otic placode and the ground.