CN110439001A - A kind of level of underground structure widens structure and construction method - Google Patents
A kind of level of underground structure widens structure and construction method Download PDFInfo
- Publication number
- CN110439001A CN110439001A CN201910803588.7A CN201910803588A CN110439001A CN 110439001 A CN110439001 A CN 110439001A CN 201910803588 A CN201910803588 A CN 201910803588A CN 110439001 A CN110439001 A CN 110439001A
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- 238000010276 construction Methods 0.000 title claims abstract description 167
- 238000009412 basement excavation Methods 0.000 claims abstract description 18
- 239000002689 soil Substances 0.000 claims abstract description 11
- 230000005641 tunneling Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 239000004567 concrete Substances 0.000 claims description 8
- 239000011150 reinforced concrete Substances 0.000 claims description 5
- 230000011218 segmentation Effects 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention belongs to underground structure technical field, the level for being related to a kind of underground structure widens construction method, building enclosure of first constructing, then construction working hole；Then construction supporting structure below construction requirement region is unsatisfactory for ground in working pit；Construction requirement region is met using cut and cover tunneling, excavation section by section section construction main structure to ground；When construction is unsatisfactory for construction requirement region to ground, the building enclosure part to conflict with main structure is first removed, then to the soil body excavation section by section in supporting construction, section construction main structure.The present invention also provides a kind of levels of underground structure to widen structure, and body structure portion is located at the lower section that ground meets construction requirement region, is partially located at the lower section that ground is unsatisfactory for construction requirement region.The present invention, merely with the working pit within the scope of underground structure, can carry out condition and be limited field under ground portion soil excavation and main structure construction, reduce difficulty of construction, shorten the construction period in the case where not removing part ground structural condition.
Description
Technical field
The invention belongs to construction of underground structure technical fields, and in particular to a kind of level of underground structure is widened structure and applied
Work method.
Background technique
Foundation pit cut and cover method is a kind of common construction method of city tunnel, and conventional method is first to construct to go along with sb. to guard him on the ground
Structure, then from ground, excavation pit, supporting and retaining system of the building enclosure of two sides as foundation pit are poured during excavation of foundation pit downwards
Build tunnel main structure (open cut contrary sequence method) or the complete after-pouring tunnel main structure (Open Cut Method) of excavation of foundation pit.
But in practical process of construction, as depicted in figs. 1 and 2, cut and cover method foundation pit construction region includes that ground is unsatisfactory for applying
Work requires region, that is, there is foundation pit part ground and do not have execution conditions or have the preparation of construction time of ground construction condition
It is long, it is unsatisfactory for construction period requirement, if the removal of foundation pit ground part is difficult or it is costly to remove, constructing tunnel is difficult to smooth reality
It applies, therefore, it is necessary to design a kind of underground structure that can complete entire foundation pit construction under conditions of only constructing local foundation pit
Level widens construction method.
Summary of the invention
In order to overcome the shortcomings of the prior art described above, the object of the present invention is to provide a kind of levels of underground structure to open up
Structure and construction method are built, the part base that can be constructed can be utilized when cut and cover method foundation pit has local ground and unconditionally constructs
Hole carries out condition and is limited field under ground portion soil excavation and main structure construction, to complete entire Underground Construction.
To achieve the above object, the technical scheme is that a kind of level of underground structure widens construction method, open cut
Method foundation pit construction region includes that ground is unsatisfactory for construction requirement region and ground and meets construction requirement region, which includes
Following steps:
1) meet the edge construction building enclosure in construction requirement region along ground, and construction working is cheated in building enclosure；
2) the main structure profile construction supporting structure below construction requirement region is unsatisfactory for along positioned at ground in working pit；
3) construction requirement region is met using cut and cover tunneling, along the length direction excavation section by section of underground structure, segmentation to ground
Construction main structure；When construction is unsatisfactory for construction requirement region to ground, first removes ground and be unsatisfactory for construction requirement region week
The building enclosure part to conflict with main structure on side, then to the level in supporting construction widen the part soil body carry out segmentation open
It digs, section construction main structure.
Further, in step 2, the Specific construction step of supporting construction are as follows: along the multiple steel of main structure profile construction
Pipe, and in pouring concrete within steel pipe.
Further, in step 2, after supporting construction of having constructed, along the outside of supporting construction construction water sealing structure.
Further, the water sealing structure is using horizontal jet grouting stake, ejection for water plugging wall or MJS.
Further, when meeting construction requirement region excavation of foundation pit to ground, side is excavated between the building enclosure of two sides
Frame side sets reinforced concrete support.
The present invention also provides a kind of levels of underground structure to widen structure, including building enclosure, main structure and supporting knot
Structure；The body structure portion is located at the lower section that ground meets construction requirement region, is partially located at ground and is unsatisfactory for construction requirement
The lower section in region；The main structure, which is located at ground and meets the two sides of the part below construction requirement region, to be equipped with and goes along with sb. to guard him knot
Structure；The main structure, which is located at ground and is unsatisfactory for the upper side and lower side of the part below construction requirement region, to be unsatisfactory for along ground
The periphery in construction requirement region is equipped with building enclosure；The main structure is located at the portion that ground is unsatisfactory for below construction requirement region
The outside divided is equipped with supporting construction.
Further, the supporting construction includes multiple steel pipes along the setting of main structure profile, and is filled out in the steel pipe
Filled with concrete.
Further, the outside of the supporting construction is equipped with water sealing structure.
Further, the water sealing structure is along horizontal jet grouting stake, ejection for water plugging wall or MJS.
Further, the building enclosure is enclosure wall or fender post.
Compared with prior art, the invention has the following advantages:
The level of underground structure provided by the invention widens construction method and first constructs along the edge that ground meets construction requirement region
Building enclosure, and construction level widens the working pit of part, construction ground is unsatisfactory for below construction requirement region out of working pit
Supporting construction, then in conjunction with foundation pit main structure construction requirement, excavation section by section level widens part, and segmentation pours tunnel main body
Structure ultimately forms complete underground structure, can be in the case where not removing part ground structural condition, merely with underground structure range
Interior working pit carries out condition and is limited field under ground portion soil excavation and main structure construction, reduce difficulty of construction, shortens construction
Duration.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the cross-sectional view of existing cut and cover method foundation ditch construction method；
Fig. 2 is the plan view that ground is unsatisfactory for construction requirement region in existing cut and cover method foundation pit construction region；
Fig. 3 is that ground provided in an embodiment of the present invention is unsatisfactory for construction requirement area peripheral edge building enclosure layout drawing；
Fig. 4 is that the level of underground structure provided in an embodiment of the present invention widens the cross-sectional view of structure；
Fig. 5 is that the level of underground structure provided in an embodiment of the present invention widens the section construction schematic diagram of structure；
In figure: 1, building enclosure, 2, main structure, 3, ground be unsatisfactory for construction requirement region, 4, working pit, 5, supporting construction,
6, water sealing structure, 7, level widen the part soil body, 8, building enclosure part to be removed, 9, building enclosure retain part, 10, reinforcing bar
Concrete support, 11, ground meet construction requirement region.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
Term " first ", " second " be used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or
Implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or imply
Ground includes one or more of the features；In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or
It is more than two.
As shown in Figure 3-Figure 5, the level that the embodiment of the present invention provides a kind of underground structure widens construction method, cut and cover method base
Hole construction area includes that ground is unsatisfactory for construction requirement region 3 and ground and meets construction requirement region 11, and ground is unsatisfactory for constructing
It is required that region 3 includes that ground does not have the region of execution conditions and bottom surface has ground construction condition but is unsatisfactory for the construction period and wants
The region asked, the construction method include the following steps:
1) the edge construction building enclosure 1 for meeting construction requirement region 11 along ground, not only on cut and cover method foundation pit construction region edge
The two sides construction of underground structure length direction has building enclosure 1, and the also ground in cut and cover method foundation pit construction region is unsatisfactory for applying
Work requires the periphery construction in region 3 to have building enclosure；And the construction working hole 4 in building enclosure 1, specifically it is unsatisfactory for applying on ground
Work requires region 3 along the side of the length direction of underground structure or two sides construction working hole 4；
2) the construction multiple steel of work of 2 profile of main structure below construction requirement region 3 are unsatisfactory for along positioned at ground in working pit 4
Pipe, and in pouring concrete within steel pipe, as supporting construction 5, diameter, wall thickness, the spacing of steel pipe etc. can be rigid according to supporting construction 5
The selection of degree demand；After supporting construction of having constructed 5, along the water sealing structure 6 of the outside of supporting construction 5 construction closing underground water, sealing
The structures such as horizontal jet grouting stake, ejection for water plugging wall or MJS can be used in structure 6；
3) meet construction requirement region 11 to ground to divide using cut and cover tunneling along the length direction excavation section by section of underground structure
Section construction main structure 2；When construction is unsatisfactory for construction requirement region 3 to ground, first removes ground and be unsatisfactory for construction requirement area
1 part of building enclosure to conflict with main structure 2 on 3 periphery of domain, then under the protection of supporting construction 5, in supporting construction 5
Level widens the part soil body 7 and carries out excavation section by section, and re-segmenting construction ground is unsatisfactory for the main structure of 3 lower section of construction requirement region
2。
The present embodiment can meet 11 model of construction requirement region merely with ground in the case where not removing part ground structural condition
Interior working pit 4 is enclosed, ground is carried out and is unsatisfactory for 3 under ground portion soil excavation of construction requirement region and the construction of main structure 2, reduce
Difficulty of construction shortens the construction period.
Optimally, when meeting 11 excavation of foundation pit of construction requirement region to ground, side is excavated between the building enclosure 1 of two sides
Frame side sets reinforced concrete support 10, can set up reinforced concrete support 10 at the top of foundation pit and the top of main structure 2,
With after the building enclosure that conflicts with main structure 2 part 8 to be removed is removed, using 10 cross-brace of reinforced concrete support,
Guarantee that building enclosure retains the stability of part 9.
As shown in figure 4, the level that the present embodiment also provides a kind of underground structure widens structure, including building enclosure 1, main body
Structure 2 and supporting construction 5；2 part of main structure is located at the lower section that ground meets construction requirement region 11, is partially located at ground
Face is unsatisfactory for the lower section in construction requirement region 3；The main structure 2 is located at the part that ground meets 11 lower section of construction requirement region
Two sides be equipped with building enclosure 1；The main structure 2 is located at the upper of the part that ground is unsatisfactory for below construction requirement region 3
Side and downside are equipped with building enclosure 1 along the periphery that ground is unsatisfactory for construction requirement region 3；The main structure 2 is located at ground
The outside for being unsatisfactory for the part of 3 lower section of construction requirement region is equipped with supporting construction 5.The level of underground structure provided in this embodiment
Widening structure can be built using above-mentioned construction method, in the case where not removing part ground structural condition, complete underground main structure 2
Construction, reduce difficulty of construction, shorten the construction period.
Specifically, the supporting construction 5 of the present embodiment includes multiple steel pipes along the setting of 2 profile of main structure, and the steel
It is filled with concrete in pipe, biggish support force can be provided, construction period ground is improved and be unsatisfactory under construction requirement region 3
The safety of square soil excavation and speed of application.
Optimally, the outside of the supporting construction 5 of the present embodiment is equipped with the water sealing structure 6 for closing underground water.Specifically,
The water sealing structure 6 can improve the waterproofness of underground structure for along the structures such as horizontal jet grouting stake, ejection for water plugging wall or MJS
Energy.
Specifically, the building enclosure 1 of the present embodiment is enclosure wall or fender post, with specific reference to needing to design.Optimally,
Meeting construction requirement region 11 positioned at ground, that reinforcing bar is provided between the building enclosure 1 of the two sides of underground structure length direction is mixed
Solidifying soil support 10 is supported, and specifically can distinguish reinforcement placing concrete branch at the top of foundation pit and the top of main structure 2
Support 10, guarantees the stability of structure.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of level of underground structure widens construction method, it is characterised in that: cut and cover method foundation pit construction region include ground not
Meet construction requirement region and ground and meet construction requirement region, which includes the following steps:
1) meet the edge construction building enclosure in construction requirement region along ground, and construction working is cheated in building enclosure；
2) the main structure profile construction supporting structure below construction requirement region is unsatisfactory for along positioned at ground in working pit；
3) construction requirement region is met using cut and cover tunneling, along the length direction excavation section by section of underground structure, segmentation to ground
Construction main structure；When construction is unsatisfactory for construction requirement region to ground, first removes ground and be unsatisfactory for construction requirement region week
The building enclosure part to conflict with main structure on side, then to the level in supporting construction widen the part soil body carry out segmentation open
It digs, section construction main structure.
2. a kind of level of underground structure as described in claim 1 widens construction method, it is characterised in that: in step 2, branch
The Specific construction step of protection structure are as follows: along the multiple steel pipes of main structure profile construction, and in pouring concrete within steel pipe.
3. a kind of level of underground structure as described in claim 1 widens construction method, it is characterised in that: in step 2, apply
After the complete supporting construction of work, along the outside of supporting construction construction water sealing structure.
4. a kind of level of underground structure as claimed in claim 3 widens construction method, it is characterised in that: the water sealing structure
Using horizontal jet grouting stake, ejection for water plugging wall or MJS.
5. a kind of level of underground structure as described in claim 1 widens construction method, it is characterised in that: meet to ground and apply
When work requires region excavation of foundation pit, side excavates frame side and sets reinforced concrete support between the building enclosure of two sides.
6. a kind of level of underground structure widens structure, it is characterised in that: including building enclosure, main structure and supporting construction；
The body structure portion is located at the lower section that ground meets construction requirement region, is partially located at ground and is unsatisfactory for construction requirement region
Lower section；The main structure, which is located at ground and meets the two sides of the part below construction requirement region, is equipped with building enclosure；Institute
It states main structure and is located at ground and is unsatisfactory for the upper side and lower side of the part below construction requirement region and be unsatisfactory for constructing along ground
It is required that the periphery in region is equipped with building enclosure；The main structure is located at the part that ground is unsatisfactory for below construction requirement region
Outside is equipped with supporting construction.
7. a kind of level of underground structure as claimed in claim 6 widens structure, it is characterised in that: the supporting construction includes
Along multiple steel pipes of main structure profile setting, and concrete is filled in the steel pipe.
8. a kind of level of underground structure as claimed in claim 6 widens structure, it is characterised in that: outside the supporting construction
Side is equipped with water sealing structure.
9. a kind of level of underground structure as claimed in claim 8 widens structure, it is characterised in that: the water sealing structure is water
Flat rotary churning pile, ejection for water plugging wall or MJS.
10. a kind of level of underground structure as claimed in claim 6 widens structure, it is characterised in that: the building enclosure is
Enclosure wall or fender post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910803588.7A CN110439001A (en) | 2019-08-28 | 2019-08-28 | A kind of level of underground structure widens structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910803588.7A CN110439001A (en) | 2019-08-28 | 2019-08-28 | A kind of level of underground structure widens structure and construction method |
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| Publication Number | Publication Date |
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| CN110439001A true CN110439001A (en) | 2019-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910803588.7A Pending CN110439001A (en) | 2019-08-28 | 2019-08-28 | A kind of level of underground structure widens structure and construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112030995A (en) * | 2020-09-04 | 2020-12-04 | 中国建筑一局(集团)有限公司 | Construction method for quickly taking out of ground for supporting and disassembling in advance for main building of super high-rise building |
| CN113565104A (en) * | 2021-07-22 | 2021-10-29 | 上海建工集团股份有限公司 | Construction method of ramp connecting part without influencing main line traffic |
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| KR20050081975A (en) * | 2004-02-17 | 2005-08-22 | 주식회사 엔티에스이앤씨 | Construction establishment method and the structure for underground tunnel formation |
| CN105464686A (en) * | 2015-12-31 | 2016-04-06 | 上海建工集团股份有限公司 | Multistory underground space screen frame type tunneling construction method under existing facilities and support structure |
| CN107620600A (en) * | 2017-07-27 | 2018-01-23 | 广州市市政工程设计研究总院 | A kind of MJS engineering methods and pipe-roof method combined supporting big cross section small interval tunneling engineering method |
| CN211143079U (en) * | 2019-08-28 | 2020-07-31 | 中铁第四勘察设计院集团有限公司 | Structure is built to underground structure's level |
-
2019
- 2019-08-28 CN CN201910803588.7A patent/CN110439001A/en active Pending
Patent Citations (4)
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|---|---|---|---|---|
| KR20050081975A (en) * | 2004-02-17 | 2005-08-22 | 주식회사 엔티에스이앤씨 | Construction establishment method and the structure for underground tunnel formation |
| CN105464686A (en) * | 2015-12-31 | 2016-04-06 | 上海建工集团股份有限公司 | Multistory underground space screen frame type tunneling construction method under existing facilities and support structure |
| CN107620600A (en) * | 2017-07-27 | 2018-01-23 | 广州市市政工程设计研究总院 | A kind of MJS engineering methods and pipe-roof method combined supporting big cross section small interval tunneling engineering method |
| CN211143079U (en) * | 2019-08-28 | 2020-07-31 | 中铁第四勘察设计院集团有限公司 | Structure is built to underground structure's level |
Non-Patent Citations (1)
| Title |
|---|
| 王宏斌: "地铁明挖车站局部下穿既有建筑物施工技术", 建筑技术, vol. 49, no. 11, 15 November 2018 (2018-11-15), pages 1156 - 1159 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112030995A (en) * | 2020-09-04 | 2020-12-04 | 中国建筑一局(集团)有限公司 | Construction method for quickly taking out of ground for supporting and disassembling in advance for main building of super high-rise building |
| CN112030995B (en) * | 2020-09-04 | 2022-01-07 | 中国建筑一局(集团)有限公司 | Construction method for quickly taking out of ground for supporting and disassembling in advance for main building of super high-rise building |
| CN113565104A (en) * | 2021-07-22 | 2021-10-29 | 上海建工集团股份有限公司 | Construction method of ramp connecting part without influencing main line traffic |
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