CN205805545U - Under wear existing buildings pipe curtain construction settlement control and compensation system - Google Patents
Under wear existing buildings pipe curtain construction settlement control and compensation system Download PDFInfo
- Publication number
- CN205805545U CN205805545U CN201620565436.XU CN201620565436U CN205805545U CN 205805545 U CN205805545 U CN 205805545U CN 201620565436 U CN201620565436 U CN 201620565436U CN 205805545 U CN205805545 U CN 205805545U
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- pipe
- snap close
- steel pipe
- pipe curtain
- existing buildings
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Abstract
The utility model discloses and wear existing buildings pipe curtain construction settlement control and compensation system under one, the top soil body solving down Mining Method excavation section tunnel when wearing existing buildings sinks to controlling and a difficult problem for compensation.It is included in the termination, top wall (5) of interval people's air defense section tunnel (4) and is provided with snap close pipe curtain, snap close pipe curtain is arranged on the underface of existing shield tunnel (1), it is provided with steel pipe jacking device (8) between parados (6) after snap close pipe curtain and the right angle in interval people's air defense section tunnel that excavated, metering soil bucket it is provided with below the soil outlet of jacking device, it is provided with snap close (14) between two adjacent snap closes pipe curtain steel pipe (7), the lateral wall (2) of snap close pipe curtain steel pipe is fixedly welded with mini-valve tube (12), the pulp inlet of mini-valve tube connects and has slip casting machine (13), the tube core grouting gun head of mini-valve tube core pipe is provided in immediately below existing buildings.This utility model make use of the existing device at scene, and settlement Control compensation effect is good.
Description
Technical field
The present invention relates to a kind of the sedimentation of the soil body above tunneling be controlled when using Mining Method Metro Excavation tunnel
System and compensate system and method, particularly to a kind of use Mining Method Metro Excavation tunnel time excavation section closely top set
It is equipped with structures, when new tunnel excavation, the pipe curtain construction settlement control that the sedimentation to existing buildings is controlled and compensates
System and method.
Background technology
In Urban Metro Construction, under wear existing buildings situation get more and more.The soil body below existing buildings
When being disturbed, the existing buildings in range of disturbance is owing to being affected by strength of turbulence is different, and the difference that can produce transfinites is sunk
Fall, thus have influence on the safety of existing buildings.Therefore control settlement, and the sedimentation to having occurred compensates, it has also become under
The problem that must solve in construction when wearing existing buildings.In the prior art, wear existing buildings under Mining Method, typically use
Tunneling boring deep hole grouting method, the soil body of side is reinforced on which.When tunneling boring deep hole grouting, in order to reach deep hole grouting
Effect, need bigger slip casting space, particularly during construction operation, after existing structures settle, typically
The method using deep hole grouting, compensates sedimentation, and owing to being limited by construction geographical environment, deep hole grouting technique cannot be entered
OK.In settlement Control, prior art also has employing pipe canopy supporting process, and this technique also has one to the soil body above pipe canopy
Fixed canopy protects effect, but creeping into of pipe boron steel pipe uses band water pore-forming operating type more, and water enters the soil body below structures, on the contrary
Increase the weight of the sedimentation of the soil body, if not submersible, by direct for the Large Diameter Pipeline steel pipe jacking soil body, there is again jacking difficulty.It addition,
The gap of adjacent steel pipe in pipe canopy, also can induce the soil body sedimentation above it.
Summary of the invention
The invention provides and under one, wear existing buildings pipe curtain construction settlement control and compensation system and method, solve down
When wearing existing buildings, the top soil body in Mining Method excavation section tunnel sinks to controlling and a difficult problem for compensation.
The present invention is to solve above technical problem by the following technical programs:
Wear existing buildings pipe curtain construction settlement control and compensation system under one, be included in the existing of setting on the ground and construct
Thing, the section of wearing running tunnel under the lower section of existing buildings is provided with Mining Method tunneling, the section of wearing interval tunnel under Mining Method tunneling
The left end in road is provided with the interval people's air defense section tunnel excavated, and above interval people's air defense section tunnel in the wall of termination, is provided with lock
Button pipe curtain, is provided with steel pipe jacking device between parados after snap close pipe curtain and the right angle in interval people's air defense section tunnel that excavated,
The auger stem of steel pipe jacking device is arranged in snap close pipe curtain steel pipe, the top, termination of auger stem and snap close pipe curtain steel pipe
Distance between right output port lateral surface is 10 centimetres, is provided with metering soil bucket in the lower section of the soil outlet of steel pipe jacking device,
It is provided with snap close, fixing weldering on the lateral wall of snap close pipe curtain steel pipe between snap close pipe curtain steel pipe and second snap close pipe curtain steel pipe
Being connected to sleeve valve barrel grouting pipe, be provided with mini-valve tube core pipe in sleeve valve barrel grouting pipe, the tube core grouting gun head of mini-valve tube core pipe is
Being arranged on immediately below existing buildings, connecting on the pulp inlet of mini-valve tube core pipe has slip casting machine.
The sleeve valve barrel grouting pressure of slip casting machine is 2 MPas.
Wear existing buildings pipe curtain construction settlement control compensation methods under one, comprise the following steps:
The first step, the lower section of existing buildings prepare excavation Mining Method tunneling under the section of wearing running tunnel left end excavation
Go out interval people's air defense section tunnel；
Second step, on the lateral wall of snap close pipe curtain steel pipe, weld the box of snap close, at second snap close pipe curtain steel pipe
The ZIKOU of snap close is welded, on the lateral wall end face of snap close pipe curtain steel pipe and the outside of second snap close pipe curtain steel pipe on lateral wall
Sleeve valve barrel grouting pipe it is respectively welded on wall end face；In the bentonite of 1 weight portion, add the water of 9-11 weight portion, stir,
Obtain bentonite slurry；
3rd step, steel pipe jacking device is arranged on behind the right angle in the interval people's air defense section tunnel excavated on parados, in district
Between people's air defense section tunnel termination, top wall and steel pipe jacking device between install snap close pipe curtain steel pipe, start steel pipe jacking device,
Snap close pipe curtain steel pipe is headed in the soil body below the existing buildings in upper end Tou Qiang front；
4th step, at first snap close pipe curtain steel pipe by the soil below the existing shield tunnel in wall front, termination above heading into
During body, when the jacking pressure of steel pipe jacking device reaches 20 MPas, by the sleeve of welding on first snap close pipe curtain steel pipe
Valve pipe Grouting Pipe is received on slip casting machine, loads the bentonite slurry that second step obtains, and noted by bentonite slurry in slip casting machine
Enter in the soil body around first snap close pipe curtain steel pipe, to reduce the friction in jack-in process of first snap close pipe curtain steel pipe
Resistance；First snap close pipe curtain steel pipe push into the soil body below existing shield tunnel whole during, steel pipe jacking device
The top, termination of auger stem be provided in first snap close pipe curtain steel pipe, and top, the termination distance of auger stem
10 centimetres, the outer face of the right output port of first snap close pipe curtain steel pipe；In jack-in process, if the jacking pressure of steel pipe jacking device
When power reaches 20 MPas again, by steel pipe jacking device, auger stem is pushed ahead, make the termination of auger stem lean out
10 centimeters outside the right output port outer face of the first snap close pipe curtain steel pipe, reach to loosen the purpose of the snap close pipe curtain steel pipe front soil body；
5th step, complete to head into the second snap close pipe curtain steel in location, side of first snap close pipe curtain steel pipe of work
Pipe, makes together with the ZIKOU of second snap close pipe curtain steel pipe patches with the box of first snap close pipe curtain steel pipe, startup steel pipe top
Enter equipment, second snap close pipe curtain steel pipe is pushed in the soil body below the existing shield tunnel in wall front, termination, top,
Repeat the above-mentioned 4th during heading into step by step suddenly, make second snap close pipe curtain steel pipe head into smoothly and put in place；
6th step, successively follow-up snap close pipe curtain steel pipe is pushed into top wall front, termination existing shield tunnel below
The soil body in, and two adjacent snap close pipe curtain steel pipes are plugged in together, form snap close pipe curtain；
7th step, when existing buildings occur sedimentation time, the tube core grouting gun head of mini-valve tube core pipe is reached existing constructing
The underface of thing, loads two fluid grouting liquid in slip casting machine, by slip casting machine, the soil body immediately below structures is carried out biliquid note
Slurry, makes the sedimentation of structures be compensated.
Present invention utilizes the existing device at scene, it is easy to operation, make the sedimentation occurred be compensated timely, it is ensured that
Existing buildings safety.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 be in Fig. 1 A-A to sectional view.
Detailed description of the invention
The present invention is described in detail below in conjunction with the accompanying drawings:
Wear existing buildings pipe curtain construction settlement control and compensation system under one, be included in the existing buildings arranged on the ground
1, the section of wearing running tunnel 3 under the lower section of existing buildings 1 is provided with Mining Method tunneling, the section of wearing interval tunnel under Mining Method tunneling
The left end in road 3 is provided with the interval people's air defense section tunnel 4 excavated, and above interval people's air defense section tunnel 4 in termination wall 5, arranges
There is snap close pipe curtain, after snap close pipe curtain and the right angle in interval people's air defense section tunnel 4 that excavated, be provided with steel pipe jacking between parados 6
Equipment 8, the auger stem 9 of steel pipe jacking device 8 is arranged in snap close pipe curtain steel pipe 7, the top, termination of auger stem 9 and snap close
Distance 10 between the right output port lateral surface of pipe curtain steel pipe 7 is 10 centimetres, arranges in the lower section of the soil outlet of steel pipe jacking device 8
There is metering soil bucket 11, between snap close pipe curtain steel pipe 7 and second snap close pipe curtain steel pipe 2, be provided with snap close 14, at snap close pipe curtain
It is fixedly welded with sleeve valve barrel grouting pipe 12 on the lateral wall of steel pipe 7, sleeve valve barrel grouting pipe 12 is provided with mini-valve tube core pipe 15,
The tube core grouting gun head 16 of mini-valve tube core pipe 15 is provided in immediately below existing buildings 1, mini-valve tube core pipe 15 enter slurry
On mouth, connection has slip casting machine 13.
The sleeve valve barrel grouting pressure of slip casting machine 13 is 2 MPas.
Wear existing buildings pipe curtain construction settlement control compensation methods under one, comprise the following steps:
The first step, under the lower section of existing buildings 1 prepares the Mining Method tunneling of excavation, the left end of the section of wearing running tunnel 3 is opened
Dig out interval people's air defense section tunnel 4；
Second step, on the lateral wall of snap close pipe curtain steel pipe 7 weld snap close 14 box, at second snap close pipe curtain steel pipe
The ZIKOU of snap close 14 is welded, with second snap close pipe curtain steel pipe on the lateral wall end face of snap close pipe curtain steel pipe 7 on the lateral wall of 2
It is respectively welded sleeve valve barrel grouting pipe 12 on the lateral wall end face of 2；In the bentonite of 1 weight portion, add the water of 9-11 weight portion,
Stir, obtain bentonite slurry；
3rd step, steel pipe jacking device 8 is arranged on behind the right angle in the interval people's air defense section tunnel 4 excavated on parados 6,
Between termination, top wall 5 and the steel pipe jacking device 8 in interval people's air defense section tunnel 4, snap close pipe curtain steel pipe 7 is installed, starts steel pipe jacking
Equipment 8, heads into snap close pipe curtain steel pipe 7 in the soil body below the existing buildings 1 in wall 5 front, termination, top；
4th step, first snap close pipe curtain steel pipe 7 by the existing shield tunnel 1 in termination wall 5 front above heading into below
The soil body during, when the jacking pressure of steel pipe jacking device 8 reaches 20 MPas, will on first snap close pipe curtain steel pipe 7 weld
The sleeve valve barrel grouting pipe 12 connect is received on slip casting machine 13, loads the bentonite slurry that second step obtains in slip casting machine 13, and will
Bentonite slurry is injected in the soil body around first snap close pipe curtain steel pipe 7, to reduce by first snap close pipe curtain steel pipe 7 on top
Frictional resistance during entering；The whole process of the soil body below existing shield tunnel 1 is pushed at first snap close pipe curtain steel pipe 7
In, the top, termination of the auger stem 9 of steel pipe jacking device 8 is provided in first snap close pipe curtain steel pipe 7, and spiral
10 centimetres, the outer face of the right output port of first snap close pipe curtain steel pipe 7 of top, the termination distance of drilling rod 9；In jack-in process, if
When the jacking pressure of steel pipe jacking device 8 reaches 20 MPas again, by steel pipe jacking device 8, auger stem 9 is pushed ahead,
The termination making auger stem 9 leans out 10 centimeters outside the right output port outer face of the first snap close pipe curtain steel pipe 7, reaches to loosen snap close
The purpose of the pipe curtain steel pipe 7 front soil body；
5th step, complete to head into the second snap close pipe curtain in location, side of first snap close pipe curtain steel pipe 7 of work
Steel pipe 2, makes together with the ZIKOU of second snap close pipe curtain steel pipe 2 patches with the box of first snap close pipe curtain steel pipe 7, to start steel
Pipe jacking device 8, pushes into the soil below the existing shield tunnel 1 in wall 5 front, termination, top by second snap close pipe curtain steel pipe 2
In body, during heading into, repeat the 4th step, make second snap close pipe curtain steel pipe 2 head into smoothly and put in place；
6th step, successively follow-up snap close pipe curtain steel pipe 7 is pushed into top wall 5 front, termination existing shield tunnel 1
In the soil body of lower section, and two adjacent snap close pipe curtain steel pipes are plugged in together, form snap close pipe curtain；
7th step, when existing buildings 1 occur sedimentation time, the tube core grouting gun head 16 of mini-valve tube core pipe 15 is reached existing
The underface of structures 1, loads two fluid grouting liquid, by slip casting machine 13 to the soil body immediately below structures 1 in slip casting machine 13
Carry out two fluid grouting, make the sedimentation of structures 1 be compensated.
Owing to adjacent snap close pipe curtain steel pipe is to be connected by primary and secondary snap close, snap close pipe curtain steel pipe is made to define a closing
Snap close pipe curtain, serve in follow-up Mining Method digging process, play wearing down the soil body above existing shield tunnel
The effect of support, has reached effective control of settling amount so that it is deformation amount controlling is in the range of Con trolling index.The every lock at pipe curtain
In the work progress of button pipe curtain steel pipe 7, by injecting bentonite slurry, solve and head into pipe curtain steel pipe resistance greatly without water, existing
There is the difficult problem that equipment cannot complete.Particularly during heading into, by coordinating in real time unearthed amount and the control of jacking pressure
System, controls to greatest extent and affects the soil body above newly built tunnels, and strict science controls disturbance below existing shield tunnel
The disturbance output of the soil body, during heading into, by the real-time fixing quantity to unearthed amount, strict science controls existing shield
The disturbance output of disturbed soil below structure tunnel, complete settling amount Con trolling index to serve the effect got instant result.When
When existing buildings 1 occurs sedimentation, the tube core grouting gun head 16 of mini-valve tube core pipe 15 is reached the underface of existing buildings 1,
In slip casting machine 13, load two fluid grouting liquid, by slip casting machine 13, the soil body immediately below structures 1 is carried out two fluid grouting, biliquid
Slip casting has the effect of slip casting uplift of soil, makes the sedimentation of structures 1 be compensated.At first snap close pipe curtain steel pipe 7 quilt
It is hampered during heading into the soil body below the existing shield tunnel 1 in wall 5 front, termination, top, injects bentonite by slip casting machine 13
Serosity, plays the effect reducing resistance, when there is sedimentation, injects dual slurry by slip casting machine 13, produces the soil body of sedimentation
Grand role.
Claims (2)
1. wear an existing buildings pipe curtain construction settlement control and compensation system under, be included in the existing buildings arranged on the ground
(1), the lower section of existing buildings (1) is provided with the section of wearing running tunnel (3) under Mining Method tunneling, the section of wearing under Mining Method tunneling
The left end of running tunnel (3) is provided with the interval people's air defense section tunnel (4) excavated, it is characterised in that in interval people's air defense section tunnel
(4) in termination, top wall (5), it is provided with snap close pipe curtain, straight snap close pipe curtain and the interval people's air defense section tunnel (4) excavated
Being provided with steel pipe jacking device (8) behind angle between parados (6), the auger stem (9) of steel pipe jacking device (8) is arranged on snap close pipe
In curtain steel pipe (7), the distance between top, termination and the right output port lateral surface of snap close pipe curtain steel pipe (7) of auger stem (9)
(10) it is 10 centimetres, is provided with metering soil bucket (11) in the lower section of the soil outlet of steel pipe jacking device (8), at snap close pipe curtain steel pipe
(7) and it is provided with snap close (14) between second snap close pipe curtain steel pipe (2), fixing on the lateral wall of snap close pipe curtain steel pipe (7)
It is welded with sleeve valve barrel grouting pipe (12), sleeve valve barrel grouting pipe (12) is provided with mini-valve tube core pipe (15), mini-valve tube core pipe
(15) tube core grouting gun head (16) is provided in immediately below existing buildings (1), at the pulp inlet of mini-valve tube core pipe (15)
Upper connection has slip casting machine (13).
Wearing existing buildings pipe curtain construction settlement control and compensation system under one the most according to claim 1, its feature exists
In, the sleeve valve barrel grouting pressure of slip casting machine (13) is 2 MPas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620565436.XU CN205805545U (en) | 2016-06-12 | 2016-06-12 | Under wear existing buildings pipe curtain construction settlement control and compensation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620565436.XU CN205805545U (en) | 2016-06-12 | 2016-06-12 | Under wear existing buildings pipe curtain construction settlement control and compensation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205805545U true CN205805545U (en) | 2016-12-14 |
Family
ID=58142943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620565436.XU Withdrawn - After Issue CN205805545U (en) | 2016-06-12 | 2016-06-12 | Under wear existing buildings pipe curtain construction settlement control and compensation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205805545U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909258A (en) * | 2016-06-12 | 2016-08-31 | 中铁十九局集团轨道交通工程有限公司 | Settlement control and compensation system and method for underneath pass existing building pipe-roofing construction |
-
2016
- 2016-06-12 CN CN201620565436.XU patent/CN205805545U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909258A (en) * | 2016-06-12 | 2016-08-31 | 中铁十九局集团轨道交通工程有限公司 | Settlement control and compensation system and method for underneath pass existing building pipe-roofing construction |
| CN105909258B (en) * | 2016-06-12 | 2018-02-06 | 中铁十九局集团轨道交通工程有限公司 | Under wear existing buildings pipe curtain construction settlement control compensation system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161214 Effective date of abandoning: 20180206 |
|
| AV01 | Patent right actively abandoned |