CN107956484B - The ruggedized construction and construction method of existing shield tunnel Deformation control - Google Patents
The ruggedized construction and construction method of existing shield tunnel Deformation control Download PDFInfo
- Publication number
- CN107956484B CN107956484B CN201711193765.1A CN201711193765A CN107956484B CN 107956484 B CN107956484 B CN 107956484B CN 201711193765 A CN201711193765 A CN 201711193765A CN 107956484 B CN107956484 B CN 107956484B
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- drilling machine
- engineering method
- existing shield
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- 238000010276 construction Methods 0.000 title claims abstract description 59
- 238000005553 drilling Methods 0.000 claims abstract description 120
- 238000012407 engineering method Methods 0.000 claims abstract description 54
- 238000007569 slipcasting Methods 0.000 claims abstract description 14
- 230000002787 reinforcement Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000002689 soil Substances 0.000 claims description 23
- 238000010992 reflux Methods 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000010009 beating Methods 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses the ruggedized construction of existing shield tunnel Deformation control and construction methods, this method comprises: label need to establish the drilling position of engineering method stake；It is drilled using drilling machine to the first drilling position；After first drilling position reaches predetermined depth, slip casting is carried out to the first drilling position, to form the first engineering method stake；After the completion of first engineering method stake, drilled using drilling machine to the second drilling position, wherein the second drilling position is located at the opposite side of the first drilling position；After second drilling position reaches predetermined depth, slip casting is carried out to the second drilling position, to form the second engineering method stake being cross-linked with the first engineering method stake；And so on, until the foundation of all engineering method stakes is completed, to constitute the reinforcement system of existing shield tunnel.The present invention effectively avoids the deformation of existing shield tunnel, while the influence to ground is smaller.
Description
Technical field
The present invention relates to existing shield tunnel reinforcement construction technology field, more specifically a kind of existing shield tunnel becomes
The ruggedized construction and construction method of shape control.
Background technique
In recent years, a large amount of subway network has been built in many cities in China, due to the long-term settlement of subway itself and neighbouring
Tunnel subsidence caused by field construction or floating influence the safe operation of subway, so reinforcement measure must be taken to reduce
Influence of the excavation of foundation pit to existing tunnel.
Currently, domestic some subway work units propose the method for some control existing shield tunnel deformations, such as soil
Body grouting strengthening method.Not only boundary of works area is wider for this reinforcement means, and enforcement difficulty is larger, and consolidation effect is difficult to ensure, and
The influence of adjacent piles is difficult to control when construction.Therefore it is required to invention and finds out a kind of more cost-effective reinforcement means
Control the deformation of existing shield tunnel.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide the ruggedized constructions of existing shield tunnel Deformation control
And construction method.
To achieve the above object, the invention adopts the following technical scheme: existing shield tunnel Deformation control ruggedized construction
Construction method, which comprises
Label need to establish the drilling position of engineering method stake；
It is drilled using drilling machine to the first drilling position；
After first drilling position reaches predetermined depth, slip casting is carried out to the first drilling position, to form the first engineering method stake；
After the completion of first engineering method stake, drilled using drilling machine to the second drilling position, wherein the second drilling position is located at first
The opposite side of drilling position；
After second drilling position reaches predetermined depth, slip casting is carried out to the second drilling position, is interlocked with being formed with the first engineering method stake
Second engineering method stake of connection；
And so on, until the foundation of all engineering method stakes is completed, to constitute the reinforcement system of existing shield tunnel.
Its further technical solution are as follows: it is described using drilling machine to first drilling position drill the step of, specifically include with
Lower step:
Start drilling machine；
Drill bit of drilling machine is pressed into the soil body at an oblique angle；
It is pressed into during the soil body, certain interval of time is needed to promote drilling machine drilling pipe；
Cutting soil, until stopping when drill bit of drilling machine reaches predetermined depth.
Its further technical solution are as follows: the tilt angle and the angle on ground of the favourable turn drill bit are 30 °~60 °.
Its further technical solution are as follows: the step cutting soil, until when drill bit of drilling machine reaches predetermined depth in stopping,
When the soil property of cutting soil is harder, the pump of water pipe and drilling machine is connected.
Its further technical solution are as follows: after first drilling position reaches predetermined depth, slip casting is carried out to the first drilling position,
With the step of forming the first engineering method stake, specifically includes the following steps:
Open the reflux stomata and reflux high-pressure pump of drilling machine；
Open the mud valve of drilling machine；
Open high pressure water dredge pump and air compressor machine；
The downward 180 ° of high pressure jet groutings of gunniting hole.
Its further technical solution are as follows: it is described open drilling machine reflux stomata and reflux high-pressure pump the step of and the opening
It is further comprised the steps of: between the step of mud valve of drilling machine
Confirm whether plasma discharge is normal, if normal, then opens the mud valve of drilling machine, if abnormal, then until plasma discharge is normal
When, open the mud valve of drilling machine.
Its further technical solution are as follows: the drilling machine is MJS drilling machine.
Its further technical solution are as follows: the engineering method stake is semicylinder shape.
Its further technical solution are as follows: the diameter of the engineering method stake is 0.8~1.1 meter.
The ruggedized construction of existing shield tunnel Deformation control, it is described to add including the ruggedized construction being set to below shield tunnel
Fixing structure includes the semi-cylindrical engineering method stake of interconnection；The angle on the engineering method stake and ground is 30 °~60 °；The engineering method
The diameter of stake is 0.8~1.1 meter.
Compared with the prior art, the invention has the advantages that: existing shield tunnel Deformation control ruggedized construction of the present invention
Construction method performs a reinforcing area below to existing shield tunnel, reinforcing area by two rows of certain angles diagonally downward
Engineering method stake is intersected with each other to be formed by overlapping, and engineering method stake is first punched by MJS drilling machine, grouting behind shaft or drift lining and formed, sound construction, effectively
The deformation of existing shield tunnel is avoided, while the influence to ground is smaller.
The above description is only an overview of the technical scheme of the present invention, can in order to better understand technical measure
It is implemented in accordance with the contents of the specification, and in order to make above and other objects of the present invention, feature and advantage brighter
Show understandable, special below to lift preferred embodiment, detailed description are as follows.
Detailed description of the invention
Fig. 1 is the flow chart of the construction method specific embodiment of existing shield tunnel Deformation control ruggedized construction of the present invention；
Fig. 2 is the stream that drills in the construction method specific embodiment of existing shield tunnel Deformation control ruggedized construction of the present invention
Cheng Tu；
Fig. 3 is the stream of slip casting in the construction method specific embodiment of existing shield tunnel Deformation control ruggedized construction of the present invention
Cheng Tu；
Fig. 4 is the perspective view of the ruggedized construction specific embodiment of existing shield tunnel Deformation control of the present invention；
Fig. 5 is the structural schematic diagram of the ruggedized construction specific embodiment of existing shield tunnel Deformation control of the present invention；
Fig. 6 is the structural representation of engineering method stake in the ruggedized construction specific embodiment of existing shield tunnel Deformation control of the present invention
Figure.
Appended drawing reference
1, ground；2, Grouting Pipe；3, engineering method stake；4, existing shield tunnel；5, the soil body.
Specific embodiment
In order to more fully understand technology contents of the invention, combined with specific embodiments below to technical solution of the present invention into
One step introduction and explanation, but not limited to this.
Specific embodiment shown in Fig. 1-3 is please referred to, a kind of existing shield tunnel Deformation control is present embodiments provided and adds
The construction method of fixing structure, method include:
S10, label need to establish the drilling position of engineering method stake；
S20, it is drilled using drilling machine to the first drilling position；
After S30, the first drilling position reach predetermined depth, slip casting is carried out to the first drilling position, to form the first engineering method stake；
After the completion of S40, the first engineering method stake, drilled using drilling machine to the second drilling position, wherein the second drilling position is located at
The opposite side of first drilling position；
After S50, the second drilling position reach predetermined depth, slip casting is carried out to the second drilling position, to be formed and the first engineering method stake
The second engineering method stake being cross-linked；
S60, and so on, until the foundation of all engineering method stakes is completed, to constitute the reinforcement system of existing shield tunnel.
For above-mentioned step S10, the mode of label can mark the position of drilling using infrared ray, or use stone
Ash sketches the contours of the general profile of a bore position.
For above-mentioned step S20, before drilling machine is drilled, drilling machine need to be transported into hole site, connect power supply
And data line, open oil pump.Drill bit of drilling machine is connected with pressure monitor display in ground, condition of the confirmation drill bit of drilling machine in no-load
Lower clearing.Again to stacks and drill bit of drilling machine, it is ensured that the leakproofness of sealing ring when docking, while checking whether pressure shows in ground
Show normal.
The first engineering method stake is needed to reach hardness requirement before second drilling position is drilled above-mentioned step S40
And then carry out the drilling of the second drilling position.
For above-mentioned step S60, after the second engineering method stake is completed, slip casting, third drilling are carried out to third drilling position
Positioned at first drilling position the same side, the 4th drilling position is located at the opposite side that third bores vacancy.Upper drilling position slip casting completes it
Afterwards, it is formed after engineering method stake, just next drilling position is operated.
Further, for above-mentioned step S20, in certain embodiments, specifically includes the following steps:
S201, starting drilling machine；
S202, drill bit of drilling machine are pressed into the soil body at an oblique angle；
During S203, the indentation soil body, certain interval of time is needed to promote drilling machine drilling pipe；
S204, cutting soil, until stopping when drill bit of drilling machine reaches predetermined depth.
For above-mentioned steps S201, the case where when starting need to observe surrounding, if there are security risks, and it is hidden that safety need to be discharged
After trouble, drilling machine could be started.
For above-mentioned step S202, drill bit of drilling machine is pressed into the soil body with 45 ° of angle, in order to protect the peace of surrounding people
Entirely, surrounding staff needs the security settings such as safe wearing cap.
For step S203, soil block blocks drill bit of drilling machine in order to prevent, needs certain interval of time that will promote drilling pipe.
Specifically, in step S204, encounter cutting soil soil property it is harder when, need to connect the pump of water pipe and drilling machine
It connects, to drench the soil body, smoothly works convenient for drilling machine.
Further, for above-mentioned step S30, in certain embodiments, specifically includes the following steps:
S301, the reflux stomata for opening drilling machine and reflux high-pressure pump；
S302, the mud valve for opening drilling machine；
S303, high pressure water dredge pump and air compressor machine are opened；
The downward 180 ° of high pressure jet groutings of S304, gunniting hole.
Specifically, also needing confirm whether plasma discharge is normal between step S301 and step S302, if normal, then brill is opened
The mud valve of machine, if abnormal, then until opening the mud valve of drilling machine when plasma discharge is normal.
Preferably, drilling machine uses MJS drilling machine.Engineering method stake is semicylinder shape.The diameter of engineering method stake is 1 meter.
In summary: the construction method of existing shield tunnel Deformation control ruggedized construction of the present invention is to existing shield tunnel
Lower section performs a reinforcing area, and reinforcing area is formed by overlapping by the engineering method stake of two rows of certain angles diagonally downward is intersected with each other,
Engineering method stake is first punched by MJS drilling machine, grouting behind shaft or drift lining and formed, sound construction, effectively avoid the change of existing shield tunnel
Shape, while the influence to ground is smaller.
Specific embodiment described in Fig. 4-6 is please referred to, the present embodiment additionally provides a kind of using existing shield tunnel deformation
Control ruggedized construction used by the construction method of ruggedized construction comprising the semi-cylindrical engineering method stake of interconnection；Engineering method stake
Angle with ground is 30 °~60 °；The diameter of engineering method stake is 0.8~1.1 meter.
Specifically, the forming process of engineering method stake is first to use drilling machine from the drilling position on ground 1 to 5 internal drilling of the soil body, then lead to
The slip casting into drilling position of Grouting Pipe 2 is crossed, is waited for a period of time, the slurry solidification to drill in position, to form engineering method stake 3.Engineering method stake 3
Interconnection setting, stability is preferable, and the stability of existing shield tunnel 4 has been effectively ensured, and avoids deforming.
In summary: existing shield tunnel Deformation control ruggedized construction of the present invention performs one below to existing shield tunnel
A reinforcing area, reinforcing area are formed by overlapping by the engineering method stake of two rows of certain angles diagonally downward is intersected with each other, and engineering method stake passes through
MJS drilling machine is first punched, grouting behind shaft or drift lining and formed, sound construction, effectively avoid the deformation of existing shield tunnel, while over the ground
The influence in face is smaller.
It is above-mentioned that technology contents of the invention are only further illustrated with embodiment, in order to which reader is easier to understand, but not
It represents embodiments of the present invention and is only limitted to this, any technology done according to the present invention extends or recreation, by of the invention
Protection.Protection scope of the present invention is subject to claims.
Claims (9)
1. the construction method of existing shield tunnel Deformation control ruggedized construction, which is characterized in that the existing shield tunnel deformation
The ruggedized construction of control includes the ruggedized construction below shield tunnel, and the ruggedized construction includes the semicolumn of interconnection
Shape engineering method stake；The angle on the engineering method stake and ground is 30 °~60 °；The described method includes:
Label need to establish the drilling position of engineering method stake；
It is drilled using drilling machine to the first drilling position；
After first drilling position reaches predetermined depth, slip casting is carried out to the first drilling position, to form the first engineering method stake；
After the completion of first engineering method stake, drilled using drilling machine to the second drilling position, wherein the second drilling position is located at the first drilling
The opposite side of position；
After second drilling position reaches predetermined depth, slip casting is carried out to the second drilling position, is cross-linked with being formed with the first engineering method stake
The second engineering method stake；
And so on, until the foundation of all engineering method stakes is completed, to constitute the reinforcement system of existing shield tunnel.
2. the construction method of existing shield tunnel Deformation control ruggedized construction according to claim 1, which is characterized in that institute
The step of drilling using drilling machine to the first drilling position is stated, specifically includes the following steps:
Start drilling machine；
Drill bit of drilling machine is pressed into the soil body at an oblique angle；
It is pressed into during the soil body, certain interval of time is needed to promote drilling machine drilling pipe；
Cutting soil, until stopping when drill bit of drilling machine reaches predetermined depth.
3. the construction method of existing shield tunnel Deformation control ruggedized construction according to claim 2, which is characterized in that institute
The angle of the tilt angle and ground of stating drill bit of drilling machine is 30 °~60 °.
4. the construction method of existing shield tunnel Deformation control ruggedized construction according to claim 2, which is characterized in that institute
Step cutting soil is stated, until stopping when drill bit of drilling machine reaches predetermined depth, when the soil property of cutting soil is harder, by water pipe and is bored
The pump of machine connects.
5. the construction method of existing shield tunnel Deformation control ruggedized construction according to claim 1, which is characterized in that institute
It states after the first drilling position reaches predetermined depth, slip casting is carried out to the first drilling position, it is specific to wrap the step of to form the first engineering method stake
Include following steps:
Open the reflux stomata and reflux high-pressure pump of drilling machine；
Open the mud valve of drilling machine；
Open high pressure water dredge pump and air compressor machine；
The downward 180 ° of high pressure jet groutings of gunniting hole.
6. the construction method of existing shield tunnel Deformation control ruggedized construction according to claim 5, which is characterized in that institute
It is also wrapped between the step of the step of stating the reflux stomata for opening drilling machine and reflux high-pressure pump and the mud valve for opening drilling machine
Include step:
Confirm whether plasma discharge is normal, if normal, then opens the mud valve of drilling machine, if abnormal, then until beating when plasma discharge is normal
It spuds in the mud valve of machine.
7. the construction method of existing shield tunnel Deformation control ruggedized construction according to claim 1, which is characterized in that institute
Stating drilling machine is MJS drilling machine.
8. the construction method of existing shield tunnel Deformation control ruggedized construction according to claim 1, which is characterized in that institute
Stating engineering method stake is semicylinder shape.
9. the construction method of existing shield tunnel Deformation control ruggedized construction according to claim 1, which is characterized in that institute
The diameter for stating engineering method stake is 0.8~1.1 meter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711193765.1A CN107956484B (en) | 2017-11-24 | 2017-11-24 | The ruggedized construction and construction method of existing shield tunnel Deformation control |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711193765.1A CN107956484B (en) | 2017-11-24 | 2017-11-24 | The ruggedized construction and construction method of existing shield tunnel Deformation control |
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| CN107956484A CN107956484A (en) | 2018-04-24 |
| CN107956484B true CN107956484B (en) | 2019-08-27 |
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| CN113685205A (en) * | 2021-09-22 | 2021-11-23 | 中铁隧道股份有限公司 | Rotary spraying lifting structure and construction method |
| CN116044455B (en) * | 2023-04-03 | 2023-06-23 | 湖南大学 | Grouting system for directional reinforcement of tunnel |
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| CN107091095A (en) * | 2017-06-19 | 2017-08-25 | 中建隧道建设有限公司 | Existing tunnel MJS engineering methods stake reinforcement system and construction method are worn under water-rich sand layer shield |
| CN107366282A (en) * | 2017-07-11 | 2017-11-21 | 北京市政建设集团有限责任公司 | A kind of tunnel arch foot partial high pressure rotary churning pile reinforcement technique |
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2017
- 2017-11-24 CN CN201711193765.1A patent/CN107956484B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| CN202215256U (en) * | 2011-09-23 | 2012-05-09 | 中铁十二局集团第三工程有限公司 | Reinforcing structure for fine sand layer of tunnel |
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| CN103924987A (en) * | 2014-04-24 | 2014-07-16 | 中铁十一局集团城市轨道工程有限公司 | SMW pile shielding portal waterproof structure and construction method thereof |
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| CN107956484A (en) | 2018-04-24 |
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