CN109881707A - A kind of assembled piping lane foundation pit structure and its construction method - Google Patents
A kind of assembled piping lane foundation pit structure and its construction method Download PDFInfo
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- CN109881707A CN109881707A CN201910212873.1A CN201910212873A CN109881707A CN 109881707 A CN109881707 A CN 109881707A CN 201910212873 A CN201910212873 A CN 201910212873A CN 109881707 A CN109881707 A CN 109881707A
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- foundation pit
- piping lane
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- 238000010276 construction Methods 0.000 title claims abstract description 29
- 239000004567 concrete Substances 0.000 claims abstract description 20
- 238000011065 in-situ storage Methods 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims abstract description 13
- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 claims abstract description 13
- 239000011378 shotcrete Substances 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 238000009412 basement excavation Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- 102000001999 Transcription Factor Pit-1 Human genes 0.000 description 1
- 108010040742 Transcription Factor Pit-1 Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention belongs to underground pipe gallery foundation pit construction technical fields, and in particular to a kind of assembled piping lane foundation pit structure and its construction method.The structure includes foundation pit, prefabricated piping lane, anchor pole and gantry crane, and prefabricated piping lane is set to bottom of foundation ditch middle；The external symmetry of foundation pit two sides is provided with several cast-in-situ bored piles；Each cast-in-situ bored pile upper end is equipped with crown beam, is fixedly connected between crown beam by coupling beam；Anchor pole is perpendicularly fixed at foundation pit slope, and foundation pit slope surface is formed with shotcrete with steel bar nets layer；Gantry crane is symmetrically disposed on the road surface of foundation pit top two sides, and in-between place is provided with suspender compatible with prefabricated piping lane；Road surfacing has concrete.Assembled piping lane foundation pit structure of the present invention is simple, and construction method is easy；The stability that shotcrete with steel bar nets keeps foundation pit is carried out on the foundation pit of slope；The coupling beam for being set to the crown beam of cast-in-situ bored pile upper end and being connected in one with crown beam prevents foundation pit top edge from generating collapsing, stability is further strengthened, to improve the safety of construction.
Description
Technical field:
Invention belongs to underground pipe gallery foundation pit construction technical field, and in particular to a kind of assembled piping lane base
Cheat structure and its construction method.
Background technique:
China's underground pipe gallery is gradually got over obtaining fast development, the importance of underground pipe gallery in recent years
Carry out the approval in more cities, underground pipe gallery has become the indispensable mating urban operating mechanism in city.Currently, underground pipe gallery
Construction mostly uses cast-in-place method, and cast-in-place method is affected by construction weather, execution conditions, is built as country widelys popularize assembled
It builds, assembled piping lane construction technology also starts to start to walk in China, invents a kind of assembled piping lane foundation pit structure and its construction method.
Summary of the invention:
To solve above-mentioned technical problem, the present invention provides a kind of assembled piping lane foundation pit structure and its construction party
Method, the foundation pit structure is simple, scientific construction and easy to operate, efficiently solves asking for the pattern foundation pit supporting structure under the conditions of top of the slope heavy burden
Topic.
The technical solution that the present invention solves technical problem is as follows:
A kind of assembled piping lane foundation pit structure, including foundation pit, prefabricated piping lane, anchor pole and gantry crane, the prefabricated piping lane are set
It is placed in the bottom of foundation ditch middle；Foundation pit two sides external symmetry is provided with several cast-in-situ bored piles；Each drilling fills
It infuses stake upper end and is equipped with crown beam, be fixedly connected between the crown beam by coupling beam；The anchor pole is perpendicularly fixed at the foundation pit slope
Place, foundation pit slope surface is formed with shotcrete with steel bar nets layer；The gantry crane is symmetrically disposed on the road surface of foundation pit top two sides,
In-between place is provided with suspender compatible with the prefabricated piping lane；The road surfacing has concrete.
Further, spaced set has the double cast-in-situ bored pile outside the every side of the foundation pit.
Further, the shotcrete with steel bar nets layer includes the concrete of the steel mesh that paving is hung and injection.
Further, the crown beam size is consistent with the coupling beam size.
A kind of construction method of assembled piping lane foundation pit structure, specifically comprises the following steps:
Step 1: concrete pavement construction is carried out, and it is conserved；
Step 2: slope excavation pit；
Step 3: after the completion of excavation of foundation pit, anchor pole fixation and the laying of suspended net shotcrete layer, sprayed construction are successively carried out；
Step 4: double bored pile construction is symmetrically carried out in bottom of foundation ditch two sides；
Step 5: abolishing cast-in-situ bored pile stake top concrete, successively carries out crown beam and coupling beam construction；
Step 6: continuing excavation pit up to designed elevation, and installs gantry crane in concrete road surface upper end simultaneously；
Step 7: pouring piping lane foundation pit foot mat, slings prefabricated piping lane by gantry crane and is transferred and installed.
Compared with the prior art, the invention has the following beneficial effects: assembled piping lane foundation pit structure of the invention is simple,
Construction method is easy；The stability that shotcrete with steel bar nets keeps foundation pit is carried out on the foundation pit of slope；It is set to cast-in-situ bored pile upper end
Crown beam and the coupling beam that is connected in one with crown beam prevent foundation pit top edge from generating collapsing, further strengthen stability, from
And improve the safety of construction.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and specific embodiments:
Fig. 1 is foundation pit structure schematic diagram in the present invention.
Figure label is as follows: the prefabricated piping lane of 1-；2- cast-in-situ bored pile；3- crown beam；4- coupling beam；5- anchor pole；6- suspended net shotcrete
Layer；7- gantry crane；The concrete road surface 8-.
Specific embodiment
Embodiment 1
As shown in Figure 1, a kind of assembled piping lane foundation pit structure, including foundation pit, prefabricated piping lane 1, anchor pole 5 and gantry crane 7, institute
It states prefabricated piping lane 1 and is set to the bottom of foundation ditch middle；Foundation pit two sides external symmetry is provided with several drill-pourings
Stake 2；Each 2 upper end of cast-in-situ bored pile is equipped with crown beam 3, is fixedly connected between the crown beam 3 by coupling beam 4；The anchor pole 5 is vertical
It is fixed at the foundation pit slope, foundation pit slope surface is formed with shotcrete with steel bar nets layer 6；The gantry crane 7 is symmetrically disposed on
On the road surface of foundation pit top two sides, in-between place is provided with suspender compatible with the prefabricated piping lane 1；The road surfacing has
Concrete.
In the present embodiment, spaced set has the double cast-in-situ bored pile 2, the cast-in-situ bored pile outside the every side of foundation pit
2 diameters are 1m, and two rows of 2 spacing of cast-in-situ bored pile are 2m.
In the present embodiment, the 6 thickness 80mm of shotcrete with steel bar nets layer comprising the steel mesh of extension and the concrete of injection are spread, it should
Each reinforced mesh in steel mesh is 6.5mm, and concrete uses C20 pea gravel concreten.
In the present embodiment, 3 size of crown beam is consistent with 4 size of coupling beam, and length is 1200mm, and wide is 800mm.
In the present embodiment, the anchor pole 5 uses diameter for the reinforcing bar of 16mm, and the length is 2m, anchor pole is fixed at slope
Prevent slope face slack.
In the present embodiment, width of roadway 1m, the C30 armored concrete for being laid with 20cm thickness thereon forms concrete road surface 8,
Increase the stability that it is maintained to the support force of gantry crane 7 in the construction process.
Embodiment 2
As shown in Figure 1, a kind of a kind of construction method of assembled piping lane foundation pit structure of assembled, specifically includes following step
It is rapid:
Step 1: it carries out concrete road surface 8 and constructs, and it is conserved；
Step 2: slope excavation pit；
Step 3: after the completion of excavation of foundation pit, the fixation of anchor pole 5 and the laying of suspended net shotcrete layer 6, sprayed construction are successively carried out；
Step 4: double cast-in-situ bored pile 2 is symmetrically carried out in bottom of foundation ditch two sides and is constructed；
Step 5: abolishing 2 stake top concrete of cast-in-situ bored pile, successively carries out crown beam 3 and coupling beam 4 is constructed；
Step 6: continuing excavation pit up to designed elevation, and installs gantry crane 7 in 8 upper end of concrete road surface simultaneously；
Step 7: pouring piping lane foundation pit foot mat, slings prefabricated piping lane 1 by gantry crane 7 and is transferred and installed.
Above-mentioned scientific construction is simple, can effectively solve the problems, such as that the pattern foundation pit supporting structure under the conditions of top of the slope heavy burden is difficult.
The foregoing is merely a prefered embodiment of the invention, but scope of protection of the present invention is not limited thereto, any to be familiar with sheet
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those skilled in the art, should all cover
Within protection scope of the present invention.Therefore, the scope of protection of the present invention shall be subject to the scope of protection defined by the claims.
Place is not described in detail by the present invention, is the well-known technique of those skilled in the art of the present technique.
Claims (5)
1. a kind of a kind of assembled piping lane foundation pit structure of assembled, including foundation pit, which is characterized in that further include prefabricated piping lane (1),
Anchor pole (5) and gantry crane (7), the prefabricated piping lane (1) are set to the bottom of foundation ditch middle；Foundation pit two sides external symmetry
It is provided with several cast-in-situ bored piles (2)；Each cast-in-situ bored pile (2) upper end is equipped with crown beam (3), between the crown beam (3)
It is fixedly connected by coupling beam (4)；The anchor pole (5) is perpendicularly fixed at the foundation pit slope, and foundation pit slope surface is formed
There are shotcrete with steel bar nets layer (6)；The gantry crane (7) is symmetrically disposed on the road surface of foundation pit top two sides, in-between place be provided with
The compatible suspender of the prefabricated piping lane (1)；The road surfacing has concrete.
2. a kind of assembled piping lane foundation pit structure according to claim 1, which is characterized in that between equal outside the every side of foundation pit
Away from being provided with the double cast-in-situ bored pile (2).
3. a kind of assembled piping lane foundation pit structure according to claim 1, which is characterized in that the shotcrete with steel bar nets layer (6)
The concrete of the steel mesh and injection hung including paving.
4. a kind of assembled piping lane foundation pit structure according to claim 1, which is characterized in that crown beam (3) size with
Coupling beam (4) size is consistent.
5. a kind of a kind of construction method of assembled piping lane foundation pit structure of assembled, which is characterized in that specifically comprise the following steps:
Step 1: concrete road surface (8) construction is carried out, and it is conserved；
Step 2: slope excavation pit；
Step 3: after the completion of excavation of foundation pit, anchor pole (5) fixation and suspended net shotcrete layer (6) laying, sprayed construction are successively carried out；
Step 4: double cast-in-situ bored pile (2) are symmetrically carried out in bottom of foundation ditch two sides and are constructed；
Step 5: abolishing cast-in-situ bored pile (2) stake top concrete, successively carries out crown beam (3) and coupling beam (4) construction；
Step 6: continuing excavation pit up to designed elevation, and installs gantry crane (7) in concrete road surface (8) upper end simultaneously；
Step 7: pouring piping lane foundation pit foot mat, slings prefabricated piping lane (1) by gantry crane (7) and is transferred and installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910212873.1A CN109881707A (en) | 2019-03-20 | 2019-03-20 | A kind of assembled piping lane foundation pit structure and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910212873.1A CN109881707A (en) | 2019-03-20 | 2019-03-20 | A kind of assembled piping lane foundation pit structure and its construction method |
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| CN109881707A true CN109881707A (en) | 2019-06-14 |
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| CN201910212873.1A Pending CN109881707A (en) | 2019-03-20 | 2019-03-20 | A kind of assembled piping lane foundation pit structure and its construction method |
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| CN (1) | CN109881707A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482045A (en) * | 2021-07-21 | 2021-10-08 | 中交二公局第六工程有限公司 | Traction type pipe gallery installation method |
| CN113737670A (en) * | 2021-09-18 | 2021-12-03 | 杭州交投建设工程有限公司 | Deformation control structure of pipe culvert and construction method |
| CN114525808A (en) * | 2022-02-25 | 2022-05-24 | 北京住总集团有限责任公司 | Construction method for ground beam of edge portal crane of deep foundation pit |
| CN116122305A (en) * | 2023-03-20 | 2023-05-16 | 中冶成都勘察研究总院有限公司 | A construction method for retaining large-diameter double-row piles in deep foundation pits adjacent to subways |
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| CN205024717U (en) * | 2015-09-20 | 2016-02-10 | 海南大学 | Construction equipment of city utility tunnel immersed tube section |
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| CN108643191A (en) * | 2018-04-18 | 2018-10-12 | 中国十七冶集团有限公司 | A kind of supporting construction and its construction method of ultra-deep piping lane foundation pit |
-
2019
- 2019-03-20 CN CN201910212873.1A patent/CN109881707A/en active Pending
Patent Citations (5)
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|---|---|---|---|---|
| KR20110081475A (en) * | 2010-01-08 | 2011-07-14 | (주)어쌤이앤씨 | Flow Control Culvert Block |
| CN103758132A (en) * | 2014-01-08 | 2014-04-30 | 湖北中南勘察基础工程有限公司 | Construction technology of cantilever piling and supporting structure combined with sloping |
| CN205024717U (en) * | 2015-09-20 | 2016-02-10 | 海南大学 | Construction equipment of city utility tunnel immersed tube section |
| CN105544606A (en) * | 2016-02-06 | 2016-05-04 | 青岛润国生态科技发展有限公司 | Construction method for assembled prefabricated comprehensive pipe rack |
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Non-Patent Citations (1)
| Title |
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| 彭芳乐等: "《地下综合管廊规划与建设导论》", 31 March 2018, 同济大学出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482045A (en) * | 2021-07-21 | 2021-10-08 | 中交二公局第六工程有限公司 | Traction type pipe gallery installation method |
| CN113737670A (en) * | 2021-09-18 | 2021-12-03 | 杭州交投建设工程有限公司 | Deformation control structure of pipe culvert and construction method |
| CN114525808A (en) * | 2022-02-25 | 2022-05-24 | 北京住总集团有限责任公司 | Construction method for ground beam of edge portal crane of deep foundation pit |
| CN114525808B (en) * | 2022-02-25 | 2024-04-16 | 北京住总集团有限责任公司 | Deep foundation pit edge gantry crane ground beam construction method |
| CN116122305A (en) * | 2023-03-20 | 2023-05-16 | 中冶成都勘察研究总院有限公司 | A construction method for retaining large-diameter double-row piles in deep foundation pits adjacent to subways |
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Application publication date: 20190614 |
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