CN107956484A - 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
- CN107956484A CN107956484A CN201711193765.1A CN201711193765A CN107956484A CN 107956484 A CN107956484 A CN 107956484A CN 201711193765 A CN201711193765 A CN 201711193765A CN 107956484 A CN107956484 A CN 107956484A
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- drilling
- shield tunnel
- drilling machine
- engineering method
- existing shield
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Links
- 238000010276 construction Methods 0.000 title claims abstract description 58
- 238000005553 drilling Methods 0.000 claims abstract description 120
- 238000012407 engineering method Methods 0.000 claims abstract description 55
- 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
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 5
- 238000004080 punching Methods 0.000 description 3
- 238000009412 basement excavation 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
- 238000007667 floating 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 and construction method of existing shield tunnel Deformation control, this method includes：Mark need to establish the drilling position of engineering method stake；Drilled using drilling machine to the first drilling position；After first drilling position reaches desired 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, opposite side of the second drilling position positioned at the first drilling position；After second drilling position reaches desired 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 form the reinforcement system of existing shield tunnel.The effective deformation for avoiding existing shield tunnel of the invention, 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 technology
In recent years, substantial amounts 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.
At present, the method that some domestic subway work units propose 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 that, and
Influence during construction to adjacent piles is difficult to control.Therefore it is required to invention and finds out a kind of more cost-effective reinforcement means
Control the deformation of existing shield tunnel.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide the ruggedized construction of existing shield tunnel Deformation control
And construction method.
To achieve the above object, the present invention uses following technical scheme：Existing shield tunnel Deformation control ruggedized construction
Construction method, the described method includes：
Mark need to establish the drilling position of engineering method stake；
Drilled using drilling machine to the first drilling position；
After first drilling position reaches desired 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 desired 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 form the reinforcement system of existing shield tunnel.
Its further technical solution is：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, needs certain interval of time to lift drilling machine drilling pipe；
Cutting soil, until drill bit of drilling machine stops when reaching desired depth.
Its further technical solution is：The angle of inclination of the favourable turn drill bit and the angle on ground are 30 °~60 °.
Its further technical solution is：The step cutting soil, until during drill bit of drilling machine stops when reaching desired depth,
When the soil property of cutting soil is harder, the pump of water pipe and drilling machine is connected.
Its further technical solution is：After the first drilling position reaches desired depth, slip casting is carried out to the first drilling position,
The step of to form the first engineering method stake, specifically 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.
Its further technical solution is：The step of reflux stomata for opening drilling machine and reflux high-pressure pump and the opening
Step is further included between the step of mud valve of drilling machine：
Confirm whether plasma discharge is normal, if normally, opening the mud valve of drilling machine, if abnormal, until plasma discharge is normal
When, opening opens the mud valve of drilling machine.
Its further technical solution is：The drilling machine is MJS drilling machines.
Its further technical solution is：The engineering method stake is semicylinder shape.
Its further technical solution is：A diameter of 0.8~1.1 meter of the engineering method stake.
The ruggedized construction of existing shield tunnel Deformation control, including the ruggedized construction below shield tunnel, it is described to add
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
A diameter of 0.8~1.1 meter of stake.
Compared with the prior art, the invention has the advantages that：Existing shield tunnel Deformation control ruggedized construction of the present invention
Construction method performing a reinforcing area below existing shield tunnel, reinforcing area by two rows of certain angles diagonally downward
Engineering method stake it is intersected with each other overlap joint form, engineering method stake by MJS drilling machines through first punching, 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.
Described above is only the general introduction of technical solution of the present invention, can in order to better understand technical measure
Content according to specification is practiced, and in order to make above and other objects of the present invention, feature and advantage brighter
It is aobvious understandable, below especially exemplified by preferred embodiment, describe in detail as follows.
Brief description of the drawings
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 to drill in the construction method specific embodiment of existing shield tunnel Deformation control ruggedized construction of the present invention
Cheng Tu；
Fig. 3 be existing shield tunnel Deformation control ruggedized construction of the present invention construction method specific embodiment in slip casting stream
Cheng Tu；
Fig. 4 is the stereogram of the ruggedized construction specific embodiment of existing shield tunnel Deformation control of the present invention；
Fig. 5 is the structure diagram of the ruggedized construction specific embodiment of existing shield tunnel Deformation control of the present invention；
Fig. 6 be existing shield tunnel Deformation control of the present invention ruggedized construction specific embodiment in engineering method stake structural representation
Figure.
Reference numeral
1st, ground；2nd, Grouting Pipe；3rd, engineering method stake；4th, existing shield tunnel；5th, the soil body.
Embodiment
In order to more fully understand the present invention technology contents, with reference to specific embodiment to technical scheme into
One step introduction and explanation, but not limited to this.
The specific embodiment shown in -3 is please referred to Fig.1, a kind of existing shield tunnel Deformation control is present embodiments provided and adds
The construction method of fixing structure, method include：
S10, mark need to establish the drilling position of engineering method stake；
S20, using drilling machine to first drilling position drill；
After S30, the first drilling position reach desired 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 desired 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 form the reinforcement system of existing shield tunnel.
For above-mentioned step S10, the mode of mark can mark the position of drilling using infrared ray, or using 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 cable, open oil pump.Drill bit of drilling machine is connected with pressure monitor display in ground, confirms condition of the 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 during docking, while check whether pressure shows in ground
Show normal.
For above-mentioned step S40, the second drilling position drilled before, it is necessary to which the first engineering method stake reaches hardness requirement
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, the 3rd drilling are carried out to the 3rd drilling position
Positioned at first drilling position the same side, the 4th drilling position is positioned at the 3rd opposite side for boring room.Upper drilling position slip casting completes it
Afterwards, formed after engineering method stake, just next drilling position is operated.
Further, for above-mentioned step S20, in certain embodiments, following steps are specifically included：
S201, start drilling machine；
S202, drill bit of drilling machine are pressed into the soil body at an oblique angle；
During S203, the press-in soil body, certain interval of time is needed to lift drilling machine drilling pipe；
S204, cutting soil, until drill bit of drilling machine stops when reaching desired depth.
For above-mentioned steps S201, when startup, need to observe the situation of surrounding, if there are security risk, and it is hidden need to discharge safety
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 is blocked drill bit of drilling machine, it is necessary to which certain interval of time will lift drilling pipe in order to prevent.
Specifically, in step S204, run into cutting soil soil property it is harder when, it is necessary to which the pump of water pipe and drilling machine is connected
Connect, to drench the soil body, smoothly work easy to drilling machine.
Further, for above-mentioned step S30, in certain embodiments, following steps are specifically included：
S301, the reflux stomata for opening drilling machine and reflux high-pressure pump；
S302, the mud valve for opening drilling machine；
S303, open high pressure water dredge pump and air compressor machine；
The downward 180 ° of high pressure jet groutings of S304, gunniting hole.
Specifically, also need to confirm whether plasma discharge is normal between step S301 and step S302, if normally, opening and boring
The mud valve of machine, if abnormal, until when plasma discharge is normal, opens the mud valve of drilling machine.
Preferably, drilling machine uses MJS drilling machines.Engineering method stake is semicylinder shape.A diameter of 1 meter of engineering method stake.
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 engineering method stake of the reinforcing area by two rows of certain angles diagonally downward overlap joint intersected with each other forms,
Engineering method stake by MJS drilling machines through first punching, 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.
The specific embodiment described in Fig. 4-6 is referred to, the present embodiment additionally provides a kind of using existing shield tunnel deformation
Ruggedized construction used by the construction method of control ruggedized construction, it includes the semi-cylindrical engineering method stake of interconnection；Engineering method stake
Angle with ground is 30 °~60 °；A diameter of 0.8~1.1 meter of engineering method stake.
Specifically, the forming process of engineering method stake is first using 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, so as to form engineering method stake 3.Engineering method stake 3
Interconnection is set, and stability is preferable, and the stability of existing shield tunnel 4 has been effectively ensured, and avoids deforming.
Summary：Existing shield tunnel Deformation control ruggedized construction of the present invention is performing one below existing shield tunnel
A reinforcing area, engineering method stake of the reinforcing area by two rows of certain angles diagonally downward overlap joint intersected with each other form, and engineering method stake passes through
MJS drilling machines through first punching, 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.
The above-mentioned technology contents that the present invention is only further illustrated with embodiment, in order to which reader is easier to understand, but not
Represent embodiments of the present invention and be only limitted to this, any technology done according to the present invention extends or recreation, by the present invention's
Protection.Protection scope of the present invention is subject to claims.
Claims (10)
1. the construction method of existing shield tunnel Deformation control ruggedized construction, it is characterised in that the described method includes：
Mark need to establish the drilling position of engineering method stake；
Drilled using drilling machine to the first drilling position；
After first drilling position reaches desired 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 positioned at the first drilling
The opposite side of position；
After second drilling position reaches desired 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 form the reinforcement system of existing shield tunnel.
2. the construction method of existing shield tunnel Deformation control ruggedized construction according to claim 1, it is characterised in that institute
The step of drilling using drilling machine to the first drilling position is stated, specifically includes 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, needs certain interval of time to lift drilling machine drilling pipe；
Cutting soil, until drill bit of drilling machine stops when reaching desired depth.
3. the construction method of existing shield tunnel Deformation control ruggedized construction according to claim 2, it is characterised in that institute
It is 30 °~60 ° to state the angle of inclination of favourable turn drill bit and the angle on ground.
4. the construction method of existing shield tunnel Deformation control ruggedized construction according to claim 2, it is characterised in that institute
State step cutting soil, until in stopping when drill bit of drilling machine reaches desired depth, when the soil property of cutting soil is harder, by water pipe with
The pump connection of drilling machine.
5. the construction method of existing shield tunnel Deformation control ruggedized construction according to claim 1, it is characterised in that institute
State after the first drilling position reaches desired depth, slip casting is carried out to the first drilling position, the step of to form the first engineering method stake, specific bag
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, it is characterised in that institute
Also wrapped between the step of mud valve of the step of stating the reflux stomata for opening drilling machine and reflux high-pressure pump and the opening drilling machine
Include step：
Confirm whether plasma discharge is normal, if normally, opening the mud valve of drilling machine, if abnormal, until when plasma discharge is normal, beat
Perform fighting the mud valve of the machine of spudding in.
7. the construction method of existing shield tunnel Deformation control ruggedized construction according to claim 1, it is characterised in that institute
It is MJS drilling machines to state drilling machine.
8. the construction method of existing shield tunnel Deformation control ruggedized construction according to claim 1, it is characterised in that institute
It is semicylinder shape to state engineering method stake.
9. the construction method of existing shield tunnel Deformation control ruggedized construction according to claim 9, it is characterised in that institute
State engineering method stake a diameter of 0.8~1.1 meter.
10. the ruggedized construction of existing shield tunnel Deformation control, it is characterised in that including the reinforcing knot below shield tunnel
Structure, the ruggedized construction include the semi-cylindrical engineering method stake of interconnection；The angle on the engineering method stake and ground is 30 °~60 °；
A diameter of 0.8~1.1 meter of the engineering method stake.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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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| Publication Number | Publication Date |
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| CN107956484A true CN107956484A (en) | 2018-04-24 |
| CN107956484B CN107956484B (en) | 2019-08-27 |
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|---|---|---|---|
| CN201711193765.1A Expired - Fee Related CN107956484B (en) | 2017-11-24 | 2017-11-24 | The ruggedized construction and construction method of existing shield tunnel Deformation control |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN116044455A (en) * | 2023-04-03 | 2023-05-02 | 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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| 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 |
| CN202690065U (en) * | 2012-05-25 | 2013-01-23 | 中铁四局集团有限公司 | Reinforced structure formed by advanced treatment of weathering ball of impact drill in tunneling range of shield tunneling machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| CN116044455A (en) * | 2023-04-03 | 2023-05-02 | 湖南大学 | Grouting system for directional reinforcement of tunnel |
| CN116044455B (en) * | 2023-04-03 | 2023-06-23 | 湖南大学 | Grouting system for directional reinforcement of tunnel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107956484B (en) | 2019-08-27 |
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