CN203383822U

CN203383822U - Seepage-proofing well wall

Info

Publication number: CN203383822U
Application number: CN201320368538.9U
Authority: CN
Inventors: 钱自卫; 姜振泉; 王录合; 朱术云
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-06-16
Filing date: 2013-06-16
Publication date: 2014-01-08
Anticipated expiration: 2023-06-16

Abstract

The utility model relates to a seepage-proofing well wall. The seepage-proofing well wall adopts three seepage-proofing methods comprehensively. The first method is that connection faces of an upper die and a lower die of the well wall are designed to be convex and concave, path length of well wall connection water-blocking is increased, and contact intensity of the well wall of the upper die and the lower die is also correspondingly increased. The second method is that an annular I-shaped water-proofing steel plate is pre-buried in the well wall of the upper die and the lower die. The third method is that a grouting pipe is pre-buried at a position of a well wall connection part close to a surrounding rock. During the pouring of the seepage-proofing well wall, a template is firstly fixed, the grouting pipe and the water-proofing steel plate are fixed at a preset position, and then well wall pouring is carried out, and after the template completes the pouring and is moved away, a next template starts pouring.

Description

The antiseepage borehole wall

Affiliated technical field

The utility model relates to a kind of antiseepage borehole wall, especially can effectively prevent that water connects by the borehole wall borehole wall that the stubble seam flows into pit shaft after well bore wall.

Background technology

In the construction of coal mine stage, digging pit shaft is one of most important engineering, and pit shaft is also referred to as " throat " of mine.While needing to pass through aquifer in the shaft excavation process, often, after borehole wall moulding, water can flow into pit shaft by the stubble seam that connects along every mould borehole wall more or less, will affect like this production of mine.

It is inclined plane shape that the current borehole wall more commonly used connects batch face, and every mould borehole wall is the plane overlap joint at joint part.Like this connect batch face shape and the overlapping mode water preventing ability generally poor, after borehole wall moulding, generally also to rely on grouting behind shaft or drift lining to administer the water outlet phenomenon of joint part, the production that so not only affects mine has also increased engineering cost.

The utility model content

In order to overcome the borehole wall commonly used in the deficiency aspect the pit shaft antiseepage, the utility model provides a kind of antiseepage borehole wall, can not only effectively prevent well bore wall after water by borehole wall joint part, in pit shaft, permeate, can also play the effect that increases upper and lower mould borehole wall contact strength.

The technical scheme that the utility model adopts is: the antiseepage borehole wall adopts convex-concave to connect the large measure of a batch face, pre-buried " work " font water proof steel plate and built-in slip casting pipe three and realizes the antiseepage to the borehole wall.Concrete scheme is: the every mould of the borehole wall pushes up the design that batch face changes tapered plane commonly used that connects at the end, connecing a batch face, changes the convex-concave shape into, can be triangle, diamond shaped or trapezoidal shape.Compare tapered plane, the convex-concave shape connect the path blocked water that batch face increases, when the borehole wall connects batch face integral body and is 45° angle and tilts, with respect to the tapered plane shape, the continuity length that connects batch face or the path that blocks water of triangle, diamond shaped and trapezoidal shape increase respectively 58%, 67% and 52%.The structure that its convex-concave is inlayed simultaneously also can increase the contact strength of the upper and lower mould borehole wall; Connect the water proof steel plate of centre position pre-buried " work " the font ring-type of stubble at the borehole wall, steel plate one end is embedded in the patrix borehole wall, and the other end is embedded in the counterdie borehole wall; Connect the Grouting Pipe of the pre-buried arch in position of batch close country rock at the borehole wall; Totally three of Grouting Pipe, each root total length is equal, and its length is equal to 1/3rd borehole wall girths; Grouting Pipe adopts and makes with the steel pipe of presbyopia, and cover last layer rubber membrane on its steel pipe, in the time of can preventing from building the borehole wall, concrete enters Grouting Pipe, when slip casting, slurries can be burst again the rubber membrane injection borehole wall and connect stubble simultaneously, and there is respectively screw thread at the two ends of steel pipe, can twist and connect valve; In the situation that there is constructional deficiency to cause that remaining infiltration appears in joint part, carry out slip casting by pre-buried Grouting Pipe, block remaining penetrating passage.

Build the requirement of the utility model antiseepage borehole wall and adopt corresponding template, can be transformed existing template, the main position of transformation is the bottom surface, top of template, be the template transformation that triangle, parallelogram shape or trapezoidal shape carry out corresponding pattern according to batch face that connects of design.While building, first template is fixed, the position that connects batch close country rock at the borehole wall fixes Grouting Pipe, is fixing the water proof steel plate according to design attitude, then carrying out the borehole wall builds, after having built a mould, moving die plate, repeat fixedly after Grouting Pipe and water proof steel plate, to carry out building of next mould.

The beneficial effects of the utility model are, this device can not only effectively prevent after well bore wall that water connects stubble along the borehole wall and exosmose, and can play the effect that increases upper and lower mould borehole wall contact strength, and its principle is simple, easy to operate.

The accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

The way of contact schematic diagram of the upper and lower mould borehole wall that Fig. 1 is at present commonly used.

In Fig. 2, (a), (b), (c) are the sectional side elevations that the utility model difformity borehole wall connects batch face.

Fig. 3 is the utility model Grouting Pipe front view.

In figure: 1. connect a batch face, 2. water proof steel plate, 3. Grouting Pipe, 4. concrete walling, 5. country rock after wall, 6. steel pipe, 7. rubber membrane, 8. spend hole, 9. screw thread.

The specific embodiment

In Fig. 1, upper and lower mould concrete walling (4) to connect stubble seam (1) be a tapered plane, upper and lower mould concrete walling (4) directly adopts the mode of " being abutted against ".

In the embodiment shown in Figure 2, (a) to connect a batch face (1) be triangle to figure, and (b) figure connects a batch face (1) for diamond shaped, and (c) to connect a batch face (1) be trapezoidal shape to figure.Water proof steel plate (2) adopts steel plate to make, and on cross section, in the form of a ring, longitudinal section is " work " font.Water proof steel plate (2) is built in the centre position of upper and lower mould concrete walling (4), and water proof steel plate (2) is upright on the whole, and the first half is cast in patrix concrete walling (4), and Lower Half is cast in patrix concrete walling (4).Grouting Pipe (3) is cast in and connects the position of a batch face (1) near Sidewall Surrounding Rock (5).

In Fig. 3, Grouting Pipe (3) is arch, and its length equals 1/3rd borehole wall girths, adopts steel pipe to make, and its arch section has colored hole (8), and cover last layer rubber membrane (7) on arch section, and its two ends car has screw thread (9).

Build the utility model antiseepage borehole wall requirement employing and connect with design the template that stubble seam (1) pattern is corresponding, while building, first template is fixed, connect batch position of close Sidewall Surrounding Rock (5) at the borehole wall and fix Grouting Pipe, fixing water proof steel plate (2) according to design attitude, then carrying out the borehole wall builds, after having built a mould, moving die plate, repeat fixedly after Grouting Pipe and water proof steel plate, to carry out building of next mould.

Claims

1. the antiseepage borehole wall, it is characterized in that: batch face that connects of borehole wall upper and lower mould is the convex-concave shape, builds the water proof steel plate in the upper and lower mould borehole wall, is connecing the local built-in slip casting pipe of stubble seam near Sidewall Surrounding Rock.

2. the antiseepage borehole wall according to claim 1, it is characterized in that: batch face that connects of borehole wall upper and lower mould is that the convex-concave shape can be triangle, diamond shaped or trapezoidal shape.

3. the antiseepage borehole wall according to claim 1, it is characterized in that: the water proof steel plate in the form of a ring, is " work " font on cross section on longitudinal section.

4. the antiseepage borehole wall according to claim 1, it is characterized in that: Grouting Pipe is arch, its length equals 1/3rd borehole wall girths, the employing steel pipe is made, the arch section of its arch has colored hole, and cover last layer rubber membrane on arch section, and its two ends car has screw thread.