CN219298202U - Water-meeting anchor rod construction structure - Google Patents

Abstract

The utility model discloses a water-contacting anchor rod construction structure, which comprises an anchor hole, an anchor rod assembly arranged in the anchor hole and a drainage pit arranged outside the anchor hole and used for containing water discharged from the anchor hole; the anchor rod assembly comprises an anchor, an anchor rod/anchor rope bundle, a grouting pipe and a drain pipe, wherein one end of the anchor rod/anchor rope bundle penetrates through the anchor and is inserted into the anchor hole, one end of the grouting pipe penetrates through the anchor and is inserted into the anchor hole, the other end of the drain pipe is inserted into the anchor hole and is bound with the anchor rod/anchor rope bundle, the end part of the drain pipe, exposed out of the anchor hole, is lower than the bottom end of the drain pipe in the anchor hole, and the elevation of the bottom of the drain pit is lower than the bottom end of the drain pipe in the anchor hole. The utility model discloses an utilize anchor eye inside and outside setting up many drain pipes, with the help of pressure differential, realize the quick discharge of anchor eye internal water, have easy operation, input cost low, quick and effectual advantage of drainage, guaranteed grouting quality and the effect of meeting water stock (cable), guaranteed meeting water stock (cable) and reached predetermined design pulling force.

Description

Water-meeting anchor rod construction structure

Technical Field

The utility model relates to the technical field of anchor bolt support, in particular to a water-contacting anchor bolt construction structure.

Background

In order to protect groundwater resources, waterproof curtains are adopted in many places in China when foundation pit supporting and selecting groundwater control schemes are carried out. Because the underground water level outside the pit is higher, in order to prevent special situations, a certain number of emergency wells are arranged outside the pit for some projects, but only observation wells are arranged for some projects, and no emergency wells are arranged.

Many stock (rope) set up below the groundwater level, when stock (rope) pore-forming operation, because downthehole water is more, appears gushing water even, if do not take timely drainage measure then stock (rope) slip casting quality then hardly guarantee to influence stock (rope) design pulling force value, appear foundation ditch incident extremely easily. At this time, when no emergency well is provided, or water in the anchor rod (rope) hole cannot be discharged due to special stratum condition even though the emergency well is provided for pumping, the application provides a water-meeting anchor rod construction structure aiming at the problems.

Disclosure of Invention

The utility model provides a water-meeting anchor rod construction structure, which utilizes the arrangement of a plurality of drain pipes inside and outside an anchor hole and realizes the rapid drainage of water in the anchor hole by means of pressure difference.

The technical problems to be solved are as follows: when no emergency well is arranged, or even if the emergency well is arranged for pumping and draining, water in the anchor rod (rope) hole cannot be drained due to special stratum conditions, if timely drainage measures are not taken, the grouting quality of the anchor rod (rope) is difficult to ensure, so that the design tension value of the anchor rod (rope) is influenced, and foundation pit safety accidents are extremely easy to occur.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model relates to a water-contacting anchor rod construction structure, which comprises an anchor hole, an anchor rod assembly arranged in the anchor hole and a drainage pit arranged outside the anchor hole and used for containing water discharged from the anchor hole;

the anchor rod assembly comprises an anchor, an anchor rod/anchor rope bundle, a grouting pipe and a drain pipe, wherein one end of the anchor rod/anchor rope bundle penetrates through the anchor and is inserted into the anchor hole, one end of the grouting pipe penetrates through the anchor and is inserted into the anchor hole, the other end of the drain pipe is inserted into the anchor hole and is bound with the anchor rod/anchor rope bundle, the end part of the drain pipe, exposed out of the anchor hole, is lower than the bottom end of the drain pipe in the anchor hole, and the elevation of the bottom of the drain pit is lower than the bottom end of the drain pipe in the anchor hole.

The utility model relates to a water-meeting anchor rod construction structure, which is characterized in that at least two drainage pipes are arranged, and a plurality of drainage pipes are positioned at different heights of anchor holes.

The utility model relates to a water-meeting anchor rod construction structure, and further a plurality of drain pipes are arranged at intervals along the circumferential direction of an anchor.

The utility model relates to a water-meeting anchor rod construction structure, and further, the drain pipe is a PVC plastic pipe.

The utility model relates to a water-meeting anchor rod construction structure, and further, the lower part of a drain pipe is provided with a plurality of auxiliary drain holes.

The utility model relates to a water-meeting anchor rod construction structure, and further, the diameter of the auxiliary drain hole is 5mm.

The utility model relates to a water-meeting anchor rod construction structure, which is characterized in that an auxiliary drainage hole is formed in the range of 20cm below a drain pipe.

The utility model relates to a water-meeting anchor rod construction structure, and further, one end of a drain pipe, which is exposed out of an anchor hole, is provided with a suction cylinder.

The utility model relates to a water-meeting anchor rod construction structure, and further relates to a drainage pit with a gradient.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The drainage construction structure composed of the anchor hole inner drain pipe, the outer drain pipe, the drain pipe control line, the air suction cylinder, the drain pit and the like is simple in structure and low in construction cost;

(2) The anchor hole can be rapidly discharged by pumping water through the drain pipe;

(3) The grouting quality and effect of the water-contacting anchor rod (rope) are ensured;

(4) Ensuring that the water-contacting anchor rod (rope) reaches a preset design tension;

(5) A dewatering well is not required to be laid outside the foundation pit;

(6) The construction process does not generate slurry, can collect and reuse the discharged water, and is energy-saving and environment-friendly.

The utility model is further described below with reference to the accompanying drawings.

Drawings

FIG. 1 is a cross-sectional view of the structure of the present utility model;

FIG. 2 is a front view of the present utility model;

FIG. 3 is a diagram showing the distribution of auxiliary drain holes according to the present utility model.

Reference numerals:

1. an anchor hole; 2. a drainage pit; 3. anchor rods/anchor cable bundles; 4. grouting pipe; 5. a drain pipe; 6. an auxiliary drain hole; 7. a suction cylinder; 8. a drain control line.

Detailed Description

As shown in fig. 1-3, the water-contacting anchor rod construction structure comprises an anchor hole 1, an anchor rod assembly arranged in the anchor hole 1 and a drainage pit 2 arranged outside the anchor hole 1 and used for accommodating drainage in the anchor hole 1, wherein the drainage pit 2 has a gradient. The anchor rod assembly comprises an anchor, an anchor rod/anchor rope bundle 3, one end of which penetrates through the anchor and is inserted into the anchor hole 1, a grouting pipe 4, one end of which penetrates through the anchor and is inserted into the anchor hole 1, and a drain pipe 5, one end of which is inserted into the anchor hole 1 and is bound with the anchor rod/anchor rope bundle 3, the end part of the drain pipe 5, exposed out of the anchor hole 1, is lower than the bottom end of the drain pipe 5 in the anchor hole 1, and the elevation of the bottom of the drain pit 2 is lower than the bottom end of the drain pipe 5 in the anchor hole 1. The quantity of the drain pipes 5 is 1-3 according to the quantity of water in the anchor holes 1, three of the drain pipes are used for illustration in this application, one of the drain pipes is located at the bottom of the anchor rod assembly, the other drain pipe is located at the top of the anchor rod assembly, the other drain pipe is located at the side face of the anchor rod assembly, the drain pipes 5 located at the bottom of the anchor rod extend to the bottom of the anchor holes 1, the residual water quantity in the anchor holes 1 can be judged through the plurality of drain pipes 5 located at different heights, and grouting preparation work in advance is also facilitated.

The drain pipe 5 is a PVC pipe, and a plurality of auxiliary drain holes 6 are formed in the range of 20cm below the drain pipe, and the diameter of each auxiliary drain hole 6 is 5mm so as to ensure the drain effect of the drain pipe 5.

The end of the drain pipe 5 exposed out of the anchor hole 1 is provided with a pumping cylinder 7, which can be in a piston type or other types, and is mainly used for discharging air in the drain pipe 5 to form pressure difference so as to quickly discharge water in the anchor hole 1.

The length of the exposed drain pipe 5 is lower than the end of the drain control line 8, so as to ensure that the drain pipe 5 can normally drain water in the anchor hole 1.

The construction steps are as follows:

first: the anchor hole 1 is formed.

Second,: the drain pipe 5 with the auxiliary drain hole 6 at the bottom is inserted into the anchor hole 1 along with the anchor rod/anchor rope bundle 3, and the number and the diameter of the drain pipe 5 are set according to the water quantity in the anchor hole 1.

Third,: the drainage control line 8 of each drain pipe 5 is determined according to the elevation position placed at the bottom end of each drain pipe 5.

Fourth,: the length of the drain pipe 5 outside the hole is combined with the respective drain control line 8 and is reserved by combining the ground elevation condition in the pit, the position of the drain pit 2 and the pit bottom elevation condition.

Fifth,: according to the drain control line 8 of each drain pipe 5 and the actual situation in the pit, the drain pit 2 is dug, and the elevation of the bottom of the drain pit 2 is required to be lower than the drain control line 8 by a certain height.

Sixth: the air in the drain pipe 5 is pumped by the pump 7, and the water is pumped after the pressure difference is formed. The water can be pumped by filling water into the drain pipe 5 and lowering the outer end of the exposed drain pipe 5 to the position below the drain control line 8.

Seventh: the outer end of each exposed drain pipe 5 is placed in the drain pit 2 at the drain control line 8 position.

Eighth: in combination with the water outlet condition of the shorter drain pipe 5 arranged in the anchor hole 1, grouting is ready to start.

Ninth,: and (5) immediately pulling out the drain pipe 5 after the water in the anchor hole 1 is drained, and grouting in the grouting pipe 4.

Tenth: by combining the water supply speed in the anchor holes 1 and the influence on slurry, pumping and draining water can be synchronously adopted in the adjacent anchor holes 1.

The above examples are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the present utility model.

Claims (9)

1. The utility model provides a meet water stock and apply structure which characterized in that: the water draining device comprises an anchor hole (1), an anchor rod assembly arranged in the anchor hole (1) and a water draining pit (2) arranged outside the anchor hole (1) and used for containing water drained from the anchor hole (1);

the anchor rod assembly comprises an anchor, an anchor rod/anchor rope bundle (3) with one end penetrating through the anchor and being inserted into an anchor hole (1), a grouting pipe (4) with one end penetrating through the anchor and being inserted into the anchor hole (1) and a drain pipe (5) with one end inserted into the anchor hole (1) and being bound with the anchor rod/anchor rope bundle (3), the end part of the drain pipe (5) exposing the anchor hole (1) is lower than the bottom end of the drain pipe (5) in the anchor hole (1), and the elevation of the bottom of the drain pit (2) is lower than the bottom end of the drain pipe (5) in the anchor hole (1).

2. The construction of a water-contacting bolt of claim 1, wherein: at least two drainage pipes (5) are arranged, and a plurality of the drainage pipes (5) are positioned at different heights of the anchor holes (1).

3. A water-contacting bolt construction according to claim 2, wherein: a plurality of drain pipes (5) are arranged at intervals along the circumferential direction of the anchorage device.

4. The construction of a water-contacting bolt of claim 1, wherein: the drain pipe (5) is a PVC plastic pipe.

5. The construction of a water-contacting bolt of claim 1, wherein: a plurality of auxiliary drain holes (6) are formed in the lower portion of the drain pipe (5).

6. The construction method of a water-contacting bolt of claim 5, wherein: the diameter of the auxiliary drain hole (6) is 5mm.

7. The construction method of a water-contacting bolt of claim 5, wherein: an auxiliary drain hole (6) is formed in the range of 20cm below the drain pipe (5).

8. The construction of a water-contacting bolt of claim 1, wherein: one end of the drain pipe (5) exposed out of the anchor hole (1) is provided with a gas suction cylinder (7).

9. The construction of a water-contacting bolt of claim 1, wherein: the drainage pit (2) has a gradient.

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