CN110410097A - A kind of engineering tunnel construction method - Google Patents
A kind of engineering tunnel construction method Download PDFInfo
- Publication number
- CN110410097A CN110410097A CN201910575966.0A CN201910575966A CN110410097A CN 110410097 A CN110410097 A CN 110410097A CN 201910575966 A CN201910575966 A CN 201910575966A CN 110410097 A CN110410097 A CN 110410097A
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- Prior art keywords
- circular hole
- operation area
- tunnel
- rock structure
- middle section
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- 238000010276 construction Methods 0.000 title claims abstract description 48
- 239000011435 rock Substances 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims description 25
- 239000002689 soil Substances 0.000 claims description 5
- 210000000481 breast Anatomy 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000005336 cracking Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000010358 mechanical oscillation Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
A kind of engineering tunnel construction method provided by the invention, comprising the following steps: constructing tunnel cross section S1, is divided into the first operation area and the second operation area；S2, multiple circular hole seams are successively processed in first operation area, the middle section rock structure of multiple circular hole seams continues to stay on tunnel；S3, the middle section rock structure of all circular hole seams is removed from tunnel；Rock structure in S4, removal second operation area.The application, by preferentially excavating the first operation area, so that the second operation area is separated with tunnel inner wall, in the second operation area excavation operation, the rock structure on tunnel inner wall will not be had an impact, situations such as collapsing, cracking, occurs for tunnel when reducing excavation operation, the safety of operation is improved, and carries out engineering tunnel construction by shield machine compared to traditional, energy consumption is few, drivage efficiency is high, improves construction speed.
Description
Technical field
The present invention relates to engineering machinery fields, and in particular to a kind of engineering tunnel construction method.
Background technique
In recent years, it with the fast development of the infrastructure constructions such as China's highway, high-speed railway and city underground, needs
Want the engineering of tunneling more and more, corresponding tunnelling machinery has been more and more widely used.
Shield machine is the main complete set of equipments of existing tunnel construction, has relatively broad application, but existing shield machine is more
Using the cutterhead of an entire tunnel cross-section of covering, for the linear velocity for controlling shield outer ring knife, its bigger revolving speed of shield diameter is more
Slowly, its corresponding construction speed is lower.6 meters of diameter of shield-tunneling construction progress is generally in 250m~300m/ month, and large-diameter shield is then more
It is low.
Existing engineering tunnel construction method, mainly by shield machine to tunnel full-section excavation, energy consumption is big, construction
Progress is relatively slow, can not meet increasing construction speed requirement.
Summary of the invention
For the defects in the prior art, a kind of engineering tunnel construction method provided by the invention, solves existing engineering
Method for tunnel construction, energy consumption is big, the relatively slow technical problem of construction speed.
To achieve the goals above, the present invention realizes by following technical solution:
A kind of engineering tunnel construction method, includes the following steps:
S1, constructing tunnel cross section is divided into the first operation area and the second operation area, first operation area is along the tunnel
The edge of construction cross section forms an annular region, and second operation area is surrounded by first operation area；
S2, successively process multiple circular holes seam in first operation area, the middle section rock structures of multiple circular holes seams after
It is continuous to stay on tunnel；
S3, the middle section rock structure of all circular hole seams is removed from tunnel；
Rock structure in S4, removal second operation area.
Optionally, in the step S2, circular hole described in any two seam between also interval processing one blind hole, the blind hole with
The circular hole seam is tangent；In the step S3, two coring arms are respectively protruding into and stitch two tangent institutes with any circular hole
It states in blind hole, is removed the middle section rock structure in circular hole seam from tunnel by two coring arms.
Optionally, the blind hole diameter is less than circular hole seam diameter, the diameter of the circular hole seam and first operation
Area it is of same size.
Optionally, in the step S3, for soft soil layer, two coring arms is protruded into and are stitched with any circular hole
The bosom of two tangent blind holes, the middle section rock structure for the circular hole seam that directly fractureed by mechanical oscillation.
Optionally, in the step S3, for bedrock formation, two coring arms is protruded into and are stitched with any circular hole
Two tangent blind holes, by being split up method segmentation or the whole section of middle section rock structure for being split up the circular hole and stitching.
Optionally, in the step S2, multiple circular hole seams are tangent or intersect, on the center of circle of multiple circular holes seams
Process a core bore；In the step S3, one being protruded into the core bore and is split up stick, the circular hole is removed using the method that is split up and is stitched
Middle section rock structure.
Optionally, it in the step S2, is processed when processing new circle slit, while on the center of circle that adjacent old circular hole stitches
The core bore.
Optionally, in the step S3, the middle section rock structure of the circular hole seam is removed using core breaker.
As shown from the above technical solution, beneficial effects of the present invention:
A kind of engineering tunnel construction method provided by the invention, comprising the following steps: constructing tunnel cross section S1, is divided into
One operation area and the second operation area, first operation area form an annulus along the edge of the constructing tunnel cross section
Domain, second operation area are surrounded by first operation area；S2, multiple circular hole seams are successively processed in first operation area,
The middle section rock structure of multiple circular hole seams continues to stay on tunnel；S3, the middle section for stitching whole circular holes
Rock structure is removed from tunnel；Rock structure in S4, removal second operation area.A kind of engineering tunnel provided by the invention
Pipeline construction method, by preferentially excavating the first operation area, so that the second operation area is separated with tunnel inner wall, in the second operation
When area's excavation operation, the rock structure on tunnel inner wall will not be had an impact, when reducing excavation operation tunnel occur collapse,
Situations such as cracking, improves the safety of operation, and carries out engineering tunnel construction, energy consumption by shield machine compared to traditional
Few, drivage efficiency is high, improves construction speed.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is a kind of flow chart of one embodiment of engineering tunnel construction method；
Fig. 2 is the construction schematic diagram of Fig. 1 flow chart；
Fig. 3 is a kind of flow chart of another embodiment of engineering tunnel construction method；
Fig. 4 is the construction schematic diagram of Fig. 3 flow chart；
Fig. 5 is a kind of flow chart of another embodiment of engineering tunnel construction method；
Fig. 6 is the construction schematic diagram of Fig. 5 flow chart.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be only used as example, and cannot be used as a limitation and limit protection model of the invention
It encloses.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
A kind of engineering tunnel construction method provided by the invention referring to FIG. 1-2, comprising the following steps:
S1, constructing tunnel cross section is divided into the first operation area and the second operation area, first operation area is along the tunnel
The edge of construction cross section forms an annular region, and second operation area is surrounded by first operation area；
S2, successively process multiple circular holes seam in first operation area, the middle section rock structures of multiple circular holes seams after
It is continuous to stay on tunnel；Preferably, multiple circular hole seams are tangent, convenient for removing the middle section of the circular hole seam in subsequent construction
Rock structure；
S3, the middle section rock structure of all circular hole seams is removed from tunnel.Specifically, it is gone using core breaker
Except the middle section rock structure of circular hole seam；Preferably, the middle section soil stone of the circular hole seam is split up using the method for being split up
Structure, and the rock structure being split up is cleaned out so as to subsequent construction by tunnel by transport device；
Rock structure in S4, removal second operation area；Specifically, second operation area is used and is split up method or machinery
It is crushed to remove the rock structure in second operation area.
As further improvement of these options, Fig. 3-4 is please referred to,
S1a, constructing tunnel cross section is divided into the first operation area and the second operation area, first operation area is along the tunnel
The edge of construction cross section forms an annular region, and second operation area is surrounded by first operation area；
S2a, successively process multiple circular holes seam in first operation area, the middle section rock structures of multiple circular holes seams after
Continuous to stay on tunnel, also interval processes a blind hole between the seam of circular hole described in any two, and the blind hole and circular hole seam are tangent,
The two sides of i.e. any circular hole seam homogeneously cut with the blind hole；Specifically, the blind hole diameter is stitched less than the circular hole
Diameter, the diameter that the circular hole stitches are of same size with first operation area.The blind hole diameter is small, and the difficulty that drills is also low；
S3a, the middle section rock structure of all circular hole seams is removed from tunnel；Specifically, by two coring arms point
It does not protrude into and is stitched with any circular hole in two tangent blind holes, it will be in circular hole seam by two coring arms
Middle section rock structure is removed from tunnel；Wherein, for soft soil layer, by two coring arms protrude into it is any described
Circular hole stitches the bosom of two tangent blind holes, the middle section soil stone for the circular hole seam that directly fractureed by mechanical oscillation
Structure；For bedrock formation, two coring arms are protruded into and stitch two tangent blind holes with any circular hole, are passed through
It is split up method segmentation or whole section is split up the middle section rock structure that the circular hole stitches；One embodiment, the coring arm are to be split up
Stick；Another embodiment, the effect end of the coring arm, which is equipped with, is split up stick；
S4a, the method for being split up or Mechanical Crushing are used to second operation area to remove the rock structure in second operation area.
Specifically, it when to second operation area using being split up method and removing the rock structure in second operation area, needs first the
Drilled through in two operation areas it is multiple be split up hole, then stick will be split up be placed into and be split up in hole and make to be split up stick work to be split up the second operation
Rock structure in area, and the rock structure being split up is cleaned out so as to subsequent construction by tunnel by transport device.
As further improvement of these options, Fig. 5-6 is please referred to,
S1b, constructing tunnel cross section is divided into the first operation area and the second operation area, first operation area is along the tunnel
The edge of construction cross section forms an annular region, and second operation area is surrounded by first operation area；
S2b, successively process multiple circular holes seam in first operation area, the middle section rock structures of multiple circular holes seams after
Continuous to stay on tunnel, multiple circular hole seams are tangent or intersect, and process a core bore on the center of circle of multiple circular holes seams；It is excellent
Selection of land processes the core bore when processing new circle slit, while on the center of circle that adjacent old circular hole stitches, i.e., processes when circular hole stitches
When complete, the core bore is also completed the process, and operating efficiency is high；Preferably, the core bore processing method referred in the step S2b can also
In the step S2a；
S3b, the middle section rock structure of all circular hole seams is removed from tunnel；Specifically, it is stretched in the core bore
Enter one and be split up stick, the middle section rock structure of the circular hole seam is removed using the method for being split up；
S4b, the method for being split up or Mechanical Crushing are used to second operation area to remove the rock structure in second operation area；
Specifically, it when to second operation area using being split up method and removing the rock structure in second operation area, needs first the
Drilled through in two operation areas it is multiple be split up hole, then stick will be split up be placed into and be split up in hole and make to be split up stick work to be split up the second operation
Rock structure in area, and the rock structure being split up is cleaned out so as to subsequent construction by tunnel by transport device.
As further improvement of these options, the engineering tunnel construction method further includes step S5, described in removal
The rock structure of first operation area remainder.
A kind of engineering tunnel construction method provided by the invention, by preferentially excavating the first operation area, so that second makees
Industry area is separated with tunnel inner wall, in the second operation area excavation operation, will not generate shadow to the rock structure on tunnel inner wall
It rings, situations such as collapsing, cracking occurs for tunnel when reducing excavation operation, improves the safety of operation.And it is borrowed compared to traditional
Shield machine is helped to carry out engineering tunnel construction, energy consumption is few, and drivage efficiency is high, improves construction speed.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover within the scope of the claims and the description of the invention.
Claims (8)
1. a kind of engineering tunnel construction method, which comprises the steps of:
S1, constructing tunnel cross section is divided into the first operation area and the second operation area, first operation area is along the tunnel
The edge of construction cross section forms an annular region, and second operation area is surrounded by first operation area；
S2, successively process multiple circular holes seam in first operation area, the middle section rock structures of multiple circular holes seams after
It is continuous to stay on tunnel；
S3, the middle section rock structure of all circular hole seams is removed from tunnel；
Rock structure in S4, removal second operation area.
2. a kind of engineering tunnel construction method according to claim 1, it is characterised in that: in the step S2, any two
Also one blind hole of interval processing, the blind hole is stitched tangent with the circular hole between a circular hole seam；In the step S3, by two
Coring arm is respectively protruding into be stitched in two tangent blind holes with any circular hole, by two coring arms by the circle
Middle section rock structure in slit is removed from tunnel.
3. a kind of engineering tunnel construction method according to claim 2, it is characterised in that: the blind hole diameter is less than described
Circular hole stitches diameter, and the diameter that the circular hole stitches is of same size with first operation area.
4. a kind of engineering tunnel construction method according to claim 3, it is characterised in that: in the step S3, for soft
Two coring arms are protruded into the bosom for stitching two tangent blind holes with any circular hole, pass through machine by soil layer
Tool vibrates the middle section rock structure for the circular hole seam that directly fractures.
5. a kind of engineering tunnel construction method according to claim 3, it is characterised in that: in the step S3, for base
Two coring arms are protruded into and stitch two tangent blind holes with any circular hole by rock stratum, by being split up method segmentation
Or the whole section of middle section rock structure for being split up circular hole seam.
6. a kind of engineering tunnel construction method according to claim 1, it is characterised in that: in the step S2, Duo Gesuo
It states circular hole and stitches tangent or intersection, process a core bore on the center of circle of multiple circular holes seams；In the step S3, in the core
One is protruded into hole and is split up stick, and the middle section rock structure of the circular hole seam is removed using the method for being split up.
7. a kind of engineering tunnel construction method according to claim 6, it is characterised in that: in the step S2, processing
When new circle slit, while the core bore is processed on the center of circle that adjacent old circular hole stitches.
8. a kind of engineering tunnel construction method according to claim 1, it is characterised in that: in the step S3, using rock
Core breaker removes the middle section rock structure of the circular hole seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910575966.0A CN110410097B (en) | 2019-06-28 | 2019-06-28 | Engineering tunnel construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910575966.0A CN110410097B (en) | 2019-06-28 | 2019-06-28 | Engineering tunnel construction method |
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| CN110410097A true CN110410097A (en) | 2019-11-05 |
| CN110410097B CN110410097B (en) | 2021-02-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113446023A (en) * | 2021-06-09 | 2021-09-28 | 重庆宏工工程机械股份有限公司 | Drilling splitting machine |
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| CN103643960A (en) * | 2013-12-31 | 2014-03-19 | 重庆电力设计院 | Power tunnel construction method |
| JP2016204938A (en) * | 2015-04-20 | 2016-12-08 | 株式会社建設技術センター | Ground lowering method for existing tunnel |
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| CN113446023A (en) * | 2021-06-09 | 2021-09-28 | 重庆宏工工程机械股份有限公司 | Drilling splitting machine |
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