CN216739642U

CN216739642U - Lower through hole directional drilling working well

Info

Publication number: CN216739642U
Application number: CN202122999889.7U
Authority: CN
Inventors: 张开聪; 张伟; 刘长春; 张恒; 刘璘俊; 李洵
Original assignee: China Railway No 8 Engineering Group Co Ltd; First Engineering Co Ltd of China Railway No 8 Engineering Group Co Ltd
Current assignee: China Railway No 8 Engineering Group Co Ltd; First Engineering Co Ltd of China Railway No 8 Engineering Group Co Ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-06-14
Anticipated expiration: 2031-11-30

Abstract

The utility model relates to a building engineering construction technical field discloses a directional drilling working well of perforating down, including the hole body, back wall one side of the hole body is provided with a plurality of bored concrete piles that set up side by side and a plurality of first cement mixing stake that set up side by side, still be equipped with a plurality of worker's method stake in the hole body, it is a plurality of all the other lateral walls along the hole body of worker's method stake set gradually. The utility model discloses the effectual holistic atress intensity of working well that has improved to can keep the stability of the soil body.

Description

Lower through hole directional drilling working well

Technical Field

The utility model relates to a building engineering construction technical field, concretely relates to directional drilling working well of perforating down.

Background

The pipe-jacking engineering is a modern construction method for burying underground pipelines, most of municipal underground pipe network engineering applying pipe-jacking construction is positioned on main lines of cities and towns, compared with a corresponding excavating pipe-burying construction method and a shield construction method, the pipe-jacking construction has obvious superiority, a ground notch does not need to be excavated, but a plurality of working wells are required to be excavated at two ends of the laid underground pipelines, the existing working wells generally adopt the construction method of excavating foundation pits, binding reinforcing steel bars on site, pouring concrete by supporting templates and backfilling, the existing working wells are easy to have weak overall stability and poor overall stress strength, and soil instability is easy to cause to influence smooth excavation construction.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is anticipated that the directional drilling working well of perforating under providing to improve the holistic atress intensity of working well, keep the stability of the soil body.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the lower-perforation directional drilling working well comprises a well body, wherein a plurality of cast-in-situ bored piles arranged side by side and a plurality of first cement mixing piles arranged side by side are arranged on one side of a back wall of the well body, a plurality of construction method piles are further arranged in the well body, and the plurality of construction method piles are sequentially arranged along the rest side walls of the well body.

The principle and the advantages of the scheme are as follows: set up drilling bored concrete pile and first cement mixing stake at the back wall of the hole body in this scheme can increase the stability of the whole atress of the back wall of the hole body, and first cement mixing stake can play the effect that has stagnant water concurrently, prevents the outer groundwater of foundation ditch and flows to the foundation ditch in, further plays the effect of protection soil body, reduces the soil body and appears unstably and the probability of collapsing.

In addition, the construction method pile is arranged in the scheme, the construction method pile can further improve the structural strength and hardness of the whole pit body, further improve the overall stress strength of the working well, and keep the stability of a soil body.

In the scheme, the inner side wall of the pit body can be supported by the piles in the construction method, the cast-in-situ bored piles and the first cement mixing piles, so that the overall strength of the working well is improved.

Preferably, as an improvement, H-shaped steel is inserted into the piles in the construction method.

The H-shaped steel can further enhance the strength of the construction method pile, so that the supporting strength of the side wall of the working well is further enhanced.

Preferably, as an improvement, the upper part of the pit body is provided with a crown beam, and the top end of the H-shaped steel extends out of the top of the crown beam.

Crown beam can be connected all pile foundations in this scheme and be a whole, and drilling bored concrete pile, first cement mixing pile and worker's method stake in this scheme can prevent that the foundation ditch edge from appearing collapsing.

Preferably, as an improvement, the crown beam is provided with a first support at each corner.

So set up, first support piece can be to the effect of supporting between the hat roof beam, makes the intensity of hat roof beam higher, and the stability more of structure.

Preferably, as an improvement, the bored pile is provided with one row, and the first cement mixing pile is provided with two rows.

So set up, the intensity of the whole atress of back wall behind the pit body can further be increased in the setting of two rows of first cement mixing stake, has further improved holistic stability.

Preferably, as a refinement, the cross section of the pit body is rectangular.

So set up, the pit body of rectangle makes things convenient for the excavation more, and various pile bodies of easy to assemble more.

Preferably, as an improvement, the bored pile and the first cement mixing pile are both located on one side of the pit body, the construction method piles are sequentially arranged along the other three side walls of the pit body, the other three side walls of the pit body are also sequentially provided with a plurality of second cement mixing piles, and the plurality of second cement mixing piles are inserted among the plurality of construction method piles.

The setting up of second cement mixing stake can improve holistic intensity and stability in this scheme.

Preferably, as an improvement, a waist beam is arranged at the upper part of the pit body, and second supporting pieces are arranged at corners of the waist beam.

So set up, the intensity and the stability of waist rail can be strengthened in the setting of second support piece.

Drawings

Fig. 1 is a front view of an embodiment of the present invention of a lower directional drilling operation well.

Fig. 2 is a plan view of the working well top surface in the embodiment of the lower perforating directional drilling working well of the present invention.

Fig. 3 is a plan view of a working well waist rail in the embodiment of the lower perforating directional drilling working well of the utility model.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the pit comprises a pit body 1, a well bottom 2, a back wall 3, a cast-in-situ bored pile 4, a first cement mixing pile 5, a second cement mixing pile 501, a crown beam 6, a construction pile 7, H-shaped steel 8, a waist beam 9, a second support member 10 and a first support member 11.

The embodiment is basically as shown in the attached figure 1: the lower-perforating directional drilling working well comprises a pit body 1, wherein the cross section of the pit body 1 in the embodiment is rectangular, and the bottom 2 of the pit body 1 is sealed by C20 concrete with the thickness of 50 cm.

Back wall 3 one side of pit body 1 is provided with a plurality of drilling bored concrete piles 4 that set up side by side and a plurality of first cement mixing stake 5 that set up side by side, and back wall 3 is located the right side of pit body 1 in this embodiment, and drilling bored concrete piles 4 and first cement mixing stake 5 all are located the right side wall of pit body 1, still are equipped with a plurality of worker's method stake 7 in the pit body 1, and a plurality of worker's method stakes 7 set gradually along all the other three lateral walls of pit body 1.

In this embodiment, the cast-in-situ bored pile 4 is provided with one row, as shown in fig. 2, the first cement mixing piles 5 are provided with two rows, each row of the first cement mixing piles 5 is also provided with a plurality of rows, and the two rows of the first cement mixing piles 5 are all located on the right side of the cast-in-situ bored pile 4.

In the embodiment, a concrete crown beam 6 is poured on the upper part of the pit body 1, and the cast-in-situ bored pile 4, the first cement mixing pile 5 and the construction method pile 7 are connected into a whole by the crown beam 6.

In the embodiment, the H-shaped steel 8 is inserted into the construction method piles 7, the top ends of the H-shaped steel 8 extend out of the top of the crown beam 6, and the distance between the top ends of the H-shaped steel 8 and the top end of the crown beam 6 is 0.5 m.

As shown in fig. 2, the first supporting members 11 are disposed at four corners of the crown beam 6, the first supporting members 11 in this embodiment are all supported by concrete, and the first supporting members 11 are obliquely supported on two adjacent right-angle side walls of the crown beam 6.

In this embodiment, a plurality of second cement mixing piles 501 are further sequentially arranged on three side walls of the pit body 1, which are not provided with the bored pile 4 and the first cement mixing pile 5, and the plurality of second cement mixing piles 501 are inserted between the plurality of construction method piles 7, specifically: as shown in fig. 2, the second cement mixing piles 501 and the construction method piles 7 located on the left side are partially arranged at intervals, no arrangement rule exists, position adjustment is performed according to the actual situation of construction of reinforcing steel bars of a pile body on site, and when the second cement mixing piles 501 collide with the reinforcing steel bars of the construction method piles 7, the position of the second cement mixing piles 501 can be properly adjusted. The second cement mixing piles 501 and the construction method piles 7 positioned on the front side and the rear side are arranged in a crossed manner in sequence, that is, the arrangement of the second cement mixing piles 501 and the construction method piles 7 is regular and is arranged at intervals in sequence according to a certain rule.

As shown in fig. 3, a wale 9 is disposed on the upper portion of the pit body 1 in this embodiment, second supporting members 10 are disposed at corners of the wale 9, the second supporting members 10 in this embodiment are all steel pipes, and two ends of the second supporting members 10 are respectively fixedly connected to two adjacent right-angle side walls of the wale 9.

In the embodiment, the back wall 3, the cast-in-situ bored pile 4, the crown beam 6, and the first support 11 are made of C30 reinforced concrete.

In this embodiment, the bored pile 4, the first cement mixing pile 5, the second cement mixing pile 501, and the working pile 7 are arranged to effectively enhance the overall stress strength and stability of the pit body 1, protect the soil body, and reduce the probability of collapse risk due to unstable state of the soil body.

The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. Lower perforation directional drilling working well, including the pit body, its characterized in that: the construction method of the cement mixing pile comprises a pit body, a plurality of cast-in-situ bored piles and a plurality of first cement mixing piles are arranged on one side of a back wall of the pit body, the cast-in-situ bored piles are arranged side by side, the first cement mixing piles are arranged side by side, a plurality of construction method piles are further arranged in the pit body, and the construction method piles are sequentially arranged along the rest side walls of the pit body.

2. The bottom-hole directional drilling working well according to claim 1, characterized in that: h-shaped steel is inserted into the piles in the construction method.

3. The bottom-hole directional drilling working well according to claim 2, characterized in that: and the top end of the H-shaped steel extends out of the top of the crown beam.

4. The bottom-hole directional drilling working well according to claim 3, wherein: and the corners of the crown beams are provided with first supporting pieces.

5. The bottom-hole directional drilling working well according to claim 1, characterized in that: the bored pile is provided with one row, and first cement stirring stake is provided with two rows.

6. The bottom-hole directional drilling working well according to claim 1, characterized in that: the cross section of the pit body is rectangular.

7. The bottom-hole directional drilling working well according to claim 6, wherein: the cast-in-situ bored pile and the first cement mixing pile are located on one side of the pit body, the construction method piles are sequentially arranged along the other three side walls of the pit body, a plurality of second cement mixing piles are further sequentially arranged on the other three side walls of the pit body, and the second cement mixing piles are inserted among the plurality of construction method piles.

8. The bottom-hole directional drilling working well according to claim 1, characterized in that: the upper portion of the pit body is provided with a waist beam, and second supporting pieces are arranged at corners of the waist beam.