CN111648773A - Construction method of connection channel communicated with existing underground structure of central urban area - Google Patents
Construction method of connection channel communicated with existing underground structure of central urban area Download PDFInfo
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- CN111648773A CN111648773A CN202010441320.6A CN202010441320A CN111648773A CN 111648773 A CN111648773 A CN 111648773A CN 202010441320 A CN202010441320 A CN 202010441320A CN 111648773 A CN111648773 A CN 111648773A
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- underground structure
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- steel pipe
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- 238000010276 construction Methods 0.000 title claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- 238000004891 communication Methods 0.000 claims abstract description 11
- 238000002360 preparation method Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims 1
- 230000005641 tunneling Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
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Classifications
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- 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
- E21D9/008—Driving transverse tunnels starting from existing tunnels
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- 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
-
- 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
- E21D11/14—Lining predominantly with metal
-
- 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
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a construction method of an interconnection channel communicated with an existing underground structure of a central urban area, which comprises the following construction steps: A. construction preparation; B. preparing a pipe jacking machine; C. pipe jacking construction is carried out outwards at the side wall of the existing first underground structure, the steel pipe is jacked to the side wall of the existing second underground structure or the enclosing structure on the outer side of the side wall of the existing second underground structure for a certain depth, and then the pipe jacking machine is withdrawn; D. continuously jacking into the adjacent steel pipe; E. adjacent steel pipes are connected by adopting embedded or outward convex lock catches to form a steel pipe curtain structure; F. forming a connecting channel structure in the steel pipe curtain; G. and (4) opening the side wall of the second underground structure or the envelope structure outside the side wall of the second underground structure within the range of the steel pipe curtain to form an integral channel with the formed communication channel. The construction method does not need to excavate a vertical shaft from the ground, and excavates at the side wall of the vertical shaft along the horizontal direction by utilizing the existing underground structural space; meanwhile, the normal operation of underground and ground structures is not influenced, only one set of retractable small-sized push bench is needed, and the cost is low.
Description
Technical Field
The invention relates to a construction method of a connection channel communicated with an existing underground structure of a central urban area.
Technical Field
With the encryption of urban rail transit network cables, various underground communication channels such as traffic channels, escape channels, transportation channels, pipeline channels and the like are increasingly required to be additionally built among existing underground structures (such as subways, commercial bodies, residential areas and the like) in urban central urban areas, the channels are different from traditional subway tunnels, the channel distance is short, the selection of the section size and the section shape is influenced by various factors, and flexible selection is carried out according to the use of the channels and available underground channel spaces. From the construction mode, the pipe jacking machine or the shield machine with a fixed section is often not suitable for construction because the ground of a central urban area does not have the construction conditions of an originating well/a receiving well, and the method is high in cost, inconvenient to construct and large in influence on the environment. The traditional process usually adopts the following construction methods:
1 open cut method: the central urban area does not have open cut conditions (subway operation, ground traffic, local limitation) and the like, and settlement control is difficult (precipitation influence, excavation influence and the like);
2, a subsurface excavation method: (1) pipe jacking method: the pipe jacking method does not have construction conditions in a central urban area, and needs to arrange an originating well and a receiving well, while underground pipelines in the central urban area are dense, land is limited, people flow is large, traffic is complex, and the like, and vertical wells are not arranged in the central urban area; (2) freezing method: frost heaving and thawing sinking, and difficult settlement control; (3) a shield method: the starting well and the receiving well are required to be arranged, the cost is high, the section size is limited, and the selection of the section shape is limited.
Disclosure of Invention
The invention aims to provide a construction method of an interconnection channel communicated with an existing underground structure of a central urban area under the condition that the central urban area does not have open cut construction conditions or a construction starting well/receiving well, wherein the construction environment is slightly influenced. And then, connecting the part of the existing structure side wall in the pipe curtain opening range in the existing second underground structure with the constructed connection channel part on the outer side of the side wall, and finally forming a complete connection channel with the existing second underground structure.
In order to solve the problems, the invention provides a construction method of a connection channel communicated with the existing underground structure of a central urban area, which adopts the following technical scheme:
a method for constructing a communication channel communicated with an existing underground structure of a central urban area comprises the following construction steps;
A. construction preparation, namely erecting a construction platform;
B. preparing a special push bench with a cutter head and a retractable main body;
C. pipe jacking construction is carried out on the side wall of the existing first underground structure towards the direction of the existing second underground structure, the steel pipe is jacked to the side wall of the second underground structure or the enclosing structure on the outer side of the side wall of the second underground structure for a certain depth, and then the pipe jacking machine is withdrawn from the steel pipe;
D. continuously jacking into the adjacent steel pipe;
E. adjacent steel pipes are connected by adopting embedded or outward convex lock catches to form a steel pipe curtain structure;
F. excavating in the steel pipe curtain, and forming a connection channel structure by cast-in-place or jacking in prefabricated pipe joints or assembling pipe pieces or other methods;
G. and opening the second underground structure side wall or the envelope structure outside the second underground structure side wall in the steel pipe curtain range, and forming an integral channel with the constructed connection channel outside the second underground structure side wall or the envelope structure outside the second underground structure side wall.
Furthermore, the push bench adopts a retractable small push bench.
Further, the diameter of the push bench is 200-1200 mm.
Further, the push bench is a circular or rectangular push bench.
Further, adopt embedded hasp or evagination formula hasp between the adjacent steel pipe in the pipe curtain structure, the hasp can the slip casting stagnant water.
Further, the steel pipe is jacked into the second underground structure side wall or the enclosing structure on the outer side of the second underground structure side wall for a certain depth, but is not communicated with the second underground structure side wall or the enclosing structure on the outer side of the second underground structure side wall.
Furthermore, the depth of each steel pipe embedded into the second underground structure side wall or the outer side protection structure of the second underground structure side wall is 50-200 mm.
Furthermore, the depth of each steel pipe embedded into the second underground structure side wall or the outer side protection structure of the second underground structure side wall in the pipe curtain can be different, and the depth is determined according to actual conditions.
The invention has the beneficial effects that: the invention provides a method for constructing an interconnection channel communicated with an existing underground structure in a central urban area, which comprises the steps of utilizing a pipe jacking machine to realize support of a steel pipe curtain, and then excavating construction in the pipe curtain, wherein the steel pipe for the pipe curtain adopts an embedded lock catch or an outward convex lock catch, and the lock catch can be used for grouting and stopping water; the pipe curtain does not need to dig a vertical well from the ground, the existing underground structural space is utilized for tunneling, and an originating well and a receiving well do not need to be arranged; meanwhile, the normal operation of underground and ground structures including underground pipelines, subway lines, ground roads and the like is not influenced, and the influence of the construction process on the environment is small; the main equipment of the construction scheme of the invention is a set of retractable small-sized push bench, and the overall cost is low.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Wherein: 1. the structure comprises a first underground structure, 2 ground road range, 3 second underground structure, 4 top pipe origin, 5 steel pipe curtain structure, 6 enclosure structure of the second underground structure, 7 structure side wall, 8 enclosure structure of the first underground structure and 9 structure side wall of the second underground structure.
Detailed Description
In order to more clearly understand the technical solutions provided by the present invention, the following further describes the present invention with reference to the accompanying drawings and specific embodiments.
The invention provides a method for constructing a communication channel communicated with an existing underground structure of a central urban area, which comprises the following construction steps as shown in figure 1;
A. construction preparation, namely erecting a construction platform;
B. preparing a special push bench with a retractable cutter head and a main body, and installing and debugging equipment;
C. pipe jacking construction is carried out on the side wall of the existing first underground structure 1 towards the existing second underground structure 3, the tunneling direction of a pipe jacking machine is horizontal or a certain inclined direction, the steel pipe is jacked to the side wall of the existing second underground structure 3 or the enclosing structure outside the side wall of the existing second underground structure 3 for a certain depth, and then the pipe jacking machine is withdrawn from the steel pipe;
D. continuously jacking into the adjacent steel pipe;
E. adjacent steel pipes are connected by adopting embedded or outward convex lock catches to form a steel pipe curtain structure;
F. excavating in the steel pipe curtain, and forming a connection channel structure by cast-in-place or jacking in prefabricated pipe joints or assembling pipe pieces or other methods;
G. and (3) opening the side wall of the second underground structure 3 or the envelope structure outside the side wall of the second underground structure 3 in the range of the steel pipe curtain, and forming an integral channel with the constructed connection channel outside the side wall of the second underground structure 3 or the envelope structure outside the side wall of the second underground structure.
In the construction method, two construction stages are mainly included, in the first stage, a pipe jacking machine is adopted to jack in steel pipes from a first underground structure 1 and embed into the side wall of a second underground structure 3 or an enclosure structure outside the side wall (but not penetrating through the side wall or the enclosure structure of the second underground structure 3), the steel pipes abut against the outside of the fire and gas outside enclosure structure of the side wall of the second underground structure 3, and a part of connected communication channels are formed by arranging steel pipe curtains; and in the second stage, the side wall or the enclosure structure of the second underground structure 3 is communicated with a communication channel formed by the previous steel pipe curtain to form an integral channel.
Furthermore, the push bench adopts a retractable small push bench.
Further, the diameter of the push bench is 200-1200 mm.
Further, the push bench is a circular or rectangular push bench.
Furthermore, an embedded lock catch or an outward convex lock catch is adopted between adjacent steel pipes in the pipe curtain structure, and the lock catch can be used for grouting and water stopping.
Further, the steel pipe is jacked into the side wall of the existing second underground structure 3 or the envelope structure on the outer side of the side wall of the existing second underground structure to a certain depth, but is not communicated with the side wall of the existing second underground structure.
Furthermore, the depth of each steel pipe embedded into the side wall of the second underground structure 3 or the outer side protection structure thereof is 50-200 mm.
Furthermore, the depth of each steel pipe embedded into the side wall of the second underground structure 3 or the outer side protection structure thereof in the pipe curtain can be different and is determined according to actual conditions.
As shown in fig. 2, fig. 2 is a specific embodiment of the present invention, in this embodiment, the existing second underground structure 3 is a subway station, and its external structure includes a structure side wall and an enclosure structure, and the existing first underground structure 1 also includes a structure side wall and an enclosure structure; during preparation construction, a retractable small pipe jacking machine starts tunneling from a pipe jacking initial place 4 in the first underground structure 1, when a steel pipe is jacked to the depth of 50-200mm of a structure side wall or a surrounding structure of a subway station, the pipe jacking machine is retracted, and the adjacent steel pipe is continuously jacked until a pipe curtain structure is formed; during specific construction, the diameter of the pipe curtain steel pipe can be selected according to the thickness of the soil covering above the pipe curtain and various load factors on the ground above the pipe curtain, and the specific embedding depth of each steel pipe can be different according to the actual site construction condition.
The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception, and fall within the scope of the present invention.
Claims (7)
1. A method for constructing a communication channel communicated with an existing underground structure of a central urban area is characterized by comprising the following construction steps;
A. construction preparation, namely erecting a construction platform;
B. preparing a special push bench with a cutter head and a retractable main body;
C. pipe jacking construction is carried out on the side wall of the existing first underground structure towards the direction of the existing second underground structure, the steel pipe is jacked to the side wall of the second underground structure or the enclosing structure on the outer side of the side wall of the second underground structure for a certain depth, and then the pipe jacking machine is withdrawn from the steel pipe;
D. continuously jacking into the adjacent steel pipe;
E. adjacent steel pipes are connected by adopting embedded or outward convex lock catches to form a steel pipe curtain structure;
F. excavating in the steel pipe curtain, and forming a connection channel structure by cast-in-place or jacking in prefabricated pipe joints or assembling pipe pieces or other methods;
G. and opening the second underground structure side wall or the envelope structure outside the second underground structure side wall in the steel pipe curtain range, and forming an integral channel with the constructed connection channel outside the second underground structure side wall or the envelope structure outside the second underground structure side wall.
2. The method for constructing the communication channel communicated with the existing underground structure in the central urban area according to claim 1, wherein the pipe jacking machine is a retractable small pipe jacking machine.
3. The method as claimed in claim 2, wherein the diameter of the pipe push bench is 200-1200 mm.
4. The method for constructing the communication channel communicated with the existing underground structure in the central urban area according to claim 2, wherein the pipe push bench is a circular or rectangular pipe push bench.
5. The method for constructing the communication channel communicated with the existing underground structure in the central urban area according to claim 1, wherein an embedded lock catch or an outward convex lock catch is adopted between adjacent steel pipes in the pipe curtain structure, and the lock catch can be used for grouting and stopping water.
6. The method for constructing the communication channel communicated with the existing underground structure of the central urban area according to claim 1, wherein the steel pipe is jacked into the side wall of the second underground structure or the envelope structure on the outer side of the side wall of the second underground structure to a certain depth but is not through.
7. The method as claimed in claim 6, wherein the depth of each steel pipe embedded in the side wall of the second underground structure or the outer side protective structure thereof is 50-200 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010441320.6A CN111648773A (en) | 2020-05-22 | 2020-05-22 | Construction method of connection channel communicated with existing underground structure of central urban area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010441320.6A CN111648773A (en) | 2020-05-22 | 2020-05-22 | Construction method of connection channel communicated with existing underground structure of central urban area |
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| Publication Number | Publication Date |
|---|---|
| CN111648773A true CN111648773A (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010441320.6A Pending CN111648773A (en) | 2020-05-22 | 2020-05-22 | Construction method of connection channel communicated with existing underground structure of central urban area |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113684910A (en) * | 2021-07-22 | 2021-11-23 | 中国市政工程西北设计研究院有限公司 | Construction method for jacking pipe to exit from inclined slope |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1916362A (en) * | 2006-09-04 | 2007-02-21 | 上海隧道工程股份有限公司 | Construction method for tunnel contact passage in shield section of underground railway |
| CN105863673A (en) * | 2016-05-24 | 2016-08-17 | 长江勘测规划设计研究有限责任公司 | Returnable pipe-jacking construction method for pushing machine body and construction structure |
| WO2016177387A1 (en) * | 2015-05-04 | 2016-11-10 | Hazemag & Epr Gmbh | Method for extracting rock material underground and full face boring machine |
| CN107178370A (en) * | 2017-07-11 | 2017-09-19 | 上海市城市建设设计研究总院（集团）有限公司 | It is not take up the method for construction of constructing road subway station weak soil |
| CN108625870A (en) * | 2018-06-13 | 2018-10-09 | 中铁工程装备集团有限公司 | A kind of Mechanical Method service channel originates reception sealing device with development machine |
| CN110512649A (en) * | 2019-07-22 | 2019-11-29 | 上海建工一建集团有限公司 | The excavating construction method of basement and communication channel structure is added under existing building |
| CN110761807A (en) * | 2019-12-11 | 2020-02-07 | 北京中岩智泊科技有限公司 | Assembling system and assembling method for prefabricated assembled jacking pipe |
-
2020
- 2020-05-22 CN CN202010441320.6A patent/CN111648773A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1916362A (en) * | 2006-09-04 | 2007-02-21 | 上海隧道工程股份有限公司 | Construction method for tunnel contact passage in shield section of underground railway |
| WO2016177387A1 (en) * | 2015-05-04 | 2016-11-10 | Hazemag & Epr Gmbh | Method for extracting rock material underground and full face boring machine |
| CN105863673A (en) * | 2016-05-24 | 2016-08-17 | 长江勘测规划设计研究有限责任公司 | Returnable pipe-jacking construction method for pushing machine body and construction structure |
| CN107178370A (en) * | 2017-07-11 | 2017-09-19 | 上海市城市建设设计研究总院（集团）有限公司 | It is not take up the method for construction of constructing road subway station weak soil |
| CN108625870A (en) * | 2018-06-13 | 2018-10-09 | 中铁工程装备集团有限公司 | A kind of Mechanical Method service channel originates reception sealing device with development machine |
| CN110512649A (en) * | 2019-07-22 | 2019-11-29 | 上海建工一建集团有限公司 | The excavating construction method of basement and communication channel structure is added under existing building |
| CN110761807A (en) * | 2019-12-11 | 2020-02-07 | 北京中岩智泊科技有限公司 | Assembling system and assembling method for prefabricated assembled jacking pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113684910A (en) * | 2021-07-22 | 2021-11-23 | 中国市政工程西北设计研究院有限公司 | Construction method for jacking pipe to exit from inclined slope |
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Application publication date: 20200911 |