CN211058799U - Seepage-proofing drainage structure for lining concrete layer and surrounding rock interface - Google Patents

Abstract

The utility model discloses a seepage-proofing drainage structure for a lining concrete layer and a surrounding rock interface, which belongs to the underground engineering technology and provides a seepage-proofing drainage structure capable of improving the drainage effect of seepage water to the lining concrete layer and the surrounding rock interface; including the stereoplasm drain pipe, the stereoplasm drain pipe sets up between country rock cliff and lining concrete layer to the stereoplasm drain pipe passes through the mounting fastener and installs in the surface of country rock cliff, is provided with one row at least and follows the infiltration hole that its axial set up on the stereoplasm drain pipe, and each row infiltration hole sets up at the angle within range interval distribution that contained angle theta corresponds along the circumference of stereoplasm drain pipe, and wherein the value of contained angle theta is 0 to 90, infiltration hole is towards country rock cliff one side. The utility model discloses can eliminate soft drain pipe as far as possible and cause the condition of defects such as jam easily at the work progress, can promote structure prevention of seepage drainage construction quality.

Description

Seepage-proofing drainage structure for lining concrete layer and surrounding rock interface

Technical Field

The utility model relates to an underground works technical field especially relates to a lining cutting concrete layer and country rock interface prevention of seepage drainage structures.

Background

In the underground shaft lining concrete engineering, the seepage-proofing and drainage problems of the interface between lining concrete and surrounding rocks are frequently considered. In engineering design, a stiffened flexible drainage pipe or a permeable pipe is generally adopted at present and is fixed on an interface through rivets to form a regular network drainage pipeline so as to drain the water seepage of surrounding rocks. In actual construction, the soft drain pipe has the following defects:

A. the outer wall of the pipe network is thin and is similar to gauze, so that cement slurry is easy to permeate into the pipe network to form blockage;

B. the concrete vibrator is easy to damage a pipe network, so that internal slurry leakage, solidification and blockage are caused;

C. when the lining height is larger, the concrete gravity easily extrudes the pipe network to cause local blockage.

The defects affect the seepage-proofing and drainage effects of the drainage pipe network.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a can improve the prevention of seepage drainage structures to the drainage effect of lining concrete layer with surrounding rock interface infiltration.

The utility model provides a technical scheme that its technical problem adopted is: lining cutting concrete layer and country rock interface prevention of seepage drainage structures, including the stereoplasm drain pipe, the stereoplasm drain pipe sets up between country rock cliff and lining cutting concrete layer to the stereoplasm drain pipe is installed in the surface of country rock cliff through the installation fastener, is provided with one row at least along the infiltration hole of its axial setting on the stereoplasm drain pipe, and each row infiltration hole along the circumference of stereoplasm drain pipe interval distribution setting in the angle range that contained angle theta corresponds, wherein the value of contained angle theta is 0 to 90, infiltration hole is towards country rock cliff one side.

Further, the method comprises the following steps: the hard drain pipe is made of HDPE or PVC pipe.

Further, the method comprises the following steps: 3-5 drainage holes are arranged on the hard drainage pipe.

Further, the method comprises the following steps: the diameter of the hard drain pipe is 50-100 mm; the aperture of the water seepage hole is 5 mm; the row spacing between adjacent drainage holes is 10-15 mm; the distance between two adjacent water seepage holes in the same water seepage hole is 100-150 mm.

Further, the method comprises the following steps: the mounting fastener comprises a clamping piece and a rivet, the clamping piece is buckled and sleeved on the hard drain pipe, and the rivet anchors two ends of the clamping piece to the wall of the surrounding rock.

Further, the method comprises the following steps: and a geotextile layer is wrapped outside the hard drain pipe.

The utility model has the advantages that: the utility model adopts the structure of the hard drain hole and the seepage hole, so that seepage water on the interface of the lining concrete layer and the surrounding rock can enter the hard drain pipe through the seepage hole and then be led out and discharged; the utility model discloses can eliminate soft drain pipe as far as possible and cause the condition of defects such as jam easily at the work progress, can promote structure prevention of seepage drainage construction quality. In addition, through further setting up geotechnological cloth layer parcel in the stereoplasm drain pipe outside, can play the filter effect, prevent that silt from getting into the condition that causes the jam in the drain pipe.

Drawings

Fig. 1 is a schematic cross-sectional view of an anti-seepage drainage structure for a lining concrete layer and surrounding rock interface of the present invention;

fig. 2 is a schematic structural view of the hard drain pipe of the present invention;

labeled as: the wall rock comprises a surrounding rock wall 1, a lining concrete layer 2, a hard drain pipe 3, a water seepage hole 4, a clamping piece 5 and a rivet 6.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1 and 2, lining cutting concrete layer and surrounding rock interface prevention of seepage drainage structures, including stereoplasm drain pipe 3, stereoplasm drain pipe 3 sets up between surrounding rock cliff 1 and lining cutting concrete layer 2 to stereoplasm drain pipe 3 installs in the surface of surrounding rock cliff 1 through the installation fastener, is provided with one row at least and follows the infiltration hole 4 of its axial setting on stereoplasm drain pipe 3, and each row infiltration hole 4 sets up along the circumference of stereoplasm drain pipe 3 at the angular range interval that contained angle theta corresponds, wherein the value of contained angle theta is 0 to 90, infiltration hole 4 is towards 1 one side of surrounding rock cliff.

Wherein, the utility model discloses in adopt stereoplasm drain pipe 3 to replace original stiffened flexible drain pipe or the pipe of permeating water, it can eliminate the condition that flexible drain pipe caused defects such as jam easily at the work progress in the work progress, can promote structure prevention of seepage drainage construction quality. More specifically, HDPE or PVC pipe is particularly preferably used for the rigid drain pipe 3.

Additionally, the utility model discloses in for through setting up the infiltration hole 4 on stereoplasm drain pipe 3 will be located the infiltration between lining cutting concrete layer 2 and the interface of country rock cliff 1 and draw forth the emission in introducing stereoplasm drain pipe 3 to this realizes the purpose of discharge infiltration. Specifically, the utility model can be provided with 3-5 drainage holes 4 on the hard drain pipe 3; as shown in fig. 2, which corresponds to the structure in which the 3 drainage holes 4 are provided.

More specifically, the utility model discloses in to stereoplasm drain pipe 3 and infiltration hole 4's the setting parameter can adopt following setting: the diameter of the hard drain pipe 3 is 50-100mm, for example, a 100mm diameter PVC pipe is adopted; the aperture of the water seepage hole 4 is 5 mm; the row spacing between adjacent drainage holes 4 is 10-15mm, for example, the row spacing is 10 mm; the distance between two adjacent water seepage holes 4 in the same water seepage hole 4 is 100-150mm, and is specifically set as 100 mm.

The utility model provides an installation fastener is for being used for installing on the country rock wall 1 with stereoplasm drain pipe 3 in the work progress to follow-up lining concrete layer 2's construction of carrying on. Specifically, referring to the drawings, the mounting fastener comprises a clamping piece 5 and a rivet 6, the clamping piece 5 is fastened and sleeved on the hard drain pipe 3, and the rivet 6 anchors two ends of the clamping piece 5 to the surrounding rock wall 1. In addition, the clip 5 is used for surrounding the hard drain pipe 3 so as to clamp the hard drain pipe 5, and the two ends of the clip 5 are anchored on the surrounding rock wall 1 through rivets 6 respectively, so that the hard drain pipe 3 is installed and fixed. Without loss of generality, the mounting fastener should be provided with a plurality of along the axial interval of stereoplasm drain pipe 3 to guarantee to the effective installation of stereoplasm drain pipe 3 fixedly.

In addition, in order to avoid silt etc. to enter into stereoplasm drain pipe 3 through infiltration hole 4, further can still wrap up the geotechnological cloth layer in stereoplasm drain pipe 3's outside, in order to play certain filter effect through the geotechnological cloth layer.

Without loss of generality, in the actual construction process, a plurality of hard drain pipes 3 need to be arranged between the whole surrounding rock wall 1 and the lining concrete layer 2 interface for draining, so that the hard drain pipes 3 can be mutually communicated by arranging corresponding connecting pieces such as a tee joint and a cross joint to form an integral drain pipe network structure, and finally, the purpose of water seepage and drainage of the whole surrounding rock wall 1 and the lining concrete layer 2 interface is achieved.

Claims (6)

1. Lining cutting concrete layer and country rock interface prevention of seepage drainage structure, its characterized in that: including stereoplasm drain pipe (3), stereoplasm drain pipe (3) set up between country rock cliff (1) and lining cutting concrete layer (2), and install in the surface of country rock cliff (1) through the installation fastener in stereoplasm drain pipe (3), be provided with at least one row infiltration hole (4) that set up along its axial on stereoplasm drain pipe (3), and each row infiltration hole (4) set up along the circumference of stereoplasm drain pipe (3) at the angular range that contained angle theta corresponds interval distribution, wherein the value of contained angle theta is 0 to 90, infiltration hole (4) are towards country rock cliff (1) one side.

2. The lined concrete layer and surrounding rock interface seepage-proofing drainage structure of claim 1, wherein: the hard drain pipe (3) is made of HDPE or PVC pipe.

3. The lined concrete layer and surrounding rock interface seepage-proofing drainage structure of claim 1, wherein: the hard drain pipe (3) is provided with 3-5 drainage holes (4).

4. The lined concrete layer and surrounding rock interface seepage-proofing drainage structure of claim 1, wherein: the diameter of the hard drain pipe (3) is 50-100 mm; the aperture of the water seepage hole (4) is 5 mm; the row spacing between the adjacent drainage holes (4) is 10-15 mm; the distance between two adjacent water seepage holes (4) in the same water seepage hole (4) is 100-150 mm.

5. The lined concrete layer and surrounding rock interface seepage-proofing drainage structure of claim 1, wherein: the mounting fastener comprises a clamping piece (5) and a rivet (6), the clamping piece (5) is buckled and sleeved on the hard drain pipe (3), and the rivet (6) anchors the two ends of the clamping piece (5) to the surrounding rock wall (1).

6. The impermeable and drainage structure for lining concrete layer and surrounding rock interface as claimed in any one of claims 1 to 5, wherein: the hard drain pipe (3) is also wrapped with a geotextile layer.

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