CN106400811B - Frame is inverse to make foldable assembled foundation pit structure construction method - Google Patents
Frame is inverse to make foldable assembled foundation pit structure construction method Download PDFInfo
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- CN106400811B CN106400811B CN201610657079.4A CN201610657079A CN106400811B CN 106400811 B CN106400811 B CN 106400811B CN 201610657079 A CN201610657079 A CN 201610657079A CN 106400811 B CN106400811 B CN 106400811B
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- 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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The present invention relates to building underground engineering fields, and in particular to frame is inverse to make foldable assembled foundation pit structure construction method, includes the following steps：A, it arranges foundation pit, designs the piling point of foundation pit, squeeze into embedded rock pile in each piling point, pile foundation depth is made to be more than basement depth, stake both has been penetrated Soft Soil Layer squeezes into lithosphere, forms socket end stake；B, setting is gone along with sb. to guard him, and backplate slot is dug between the piling point of margin of foundation pit, and the depth of the backplate slot matches with the basement depth designed and constructed, and wall interior panel is then packed into slot；C, bottom is in the milk, and grout hole is opened up in Tu Mianshang, and depth and the basement depth of the grout hole match, be then in the milk into grout hole, and waterproof layer is formed in the bottom of basement；D, top-down excavation from native top-down excavation downwards, is successively constructed, the construction until completing entire basement.
Description
Technical field
The present invention relates to building underground engineering fields, and in particular to frame is inverse to make foldable assembled foundation pit structure construction party
Method.
Background technology
At present, for surface layer be Soft Soil Layer, bottom for lithosphere geologic structure underground structure construction, frequently with
Lower step：1st, lithosphere is arrived in piling；2nd, cast-in-place diaphram wall, wall depth equally reach lithosphere；3rd, earth excavation.In this way
The benefit of construction is that, using socket end stake stress, support effect is good, and the diaphram wall through entire Soft Soil Layer can effectively completely cut off
Flowing water in Soft Soil Layer enters basement.But this form of construction work has the following disadvantages：1st, diaphragm wall depth is big, is constructed into
This height；2nd, cast-in-situ wall has leakage hidden trouble, and is difficult to determine leaking area.
To ensure water proof effect, most foundation pits carry out three face water proofs processing using cofferdam mode, especially near a river, lake, river,
In the case of the complicated hydrogeological conditions such as sea, and region is usually urban core region near water, and periphery structures are intensive, to reach
To preferable Deformation control effect, diaphram wall is required according to Specification Design in embedded water barrier, should be met stability, be become
Shape, water proof requirement, meanwhile, the part as underground structure.But for water barrier buried depth it is big when, diaphram wall
Embedded water barrier soil, cost dramatically increases in cost.
Invention content
The purpose of the present invention is to solve the problems in background technology, provides that a kind of frame is inverse to make foldable assembled
Foundation pit structure construction method.
The present invention above-mentioned technical purpose technical scheme is that：
Frame is inverse to make foldable assembled foundation pit structure construction method, includes the following steps：
A, it arranges foundation pit, designs the piling point of foundation pit, squeeze into embedded rock pile in each piling point, be more than pile foundation depth
Stake had both been penetrated Soft Soil Layer and has squeezed into lithosphere, and formed socket end stake by basement depth；
B, setting is gone along with sb. to guard him, and backplate slot, the depth of the backplate slot and design and construction are dug between the piling point of margin of foundation pit
Basement depth match, wall interior panel is then packed into slot；
C, bottom is in the milk, and opens up grout hole in Tu Mianshang, depth and the basement depth of the grout hole match, then
It is in the milk into grout hole, waterproof layer is formed in the bottom of basement；
D, top-down excavation from native top-down excavation downwards, is successively constructed, the construction until completing entire basement.
It is Soft Soil Layer for the similar this surface layer in Wuhan, bottom is the geologic structure of lithosphere, traditional basement construction
The depth by foundation pit enclosure plate is needed to get to lithosphere, causes the huge waste of material.In this method, by way of grouting
By the clay alteration of basement bottom, one piece of waterproof layer bottom plate being connected with wall interior panel is formed so that waterproof layer is with going along with sb. to guard him
A closed space is formed in Soft Soil Layer, the flowing water layer that can effectively prevent in Soft Soil Layer enters in basement, while shorten and enclose
Construction material can be greatly saved depending on design of basement depth in the depth of backplate, the depth of wall interior panel.It is in addition, traditional
Construction in the cast-in-place form of underground exterior-protected structure generally use, however when Bars In Poured Concrete Slab is impacted by external water pressure be susceptible to leakage
Water, and leaking area is difficult detection.Using prefabricated wall interior panel, the quality of wall interior panel can be effectively ensured, prevent leak, go along with sb. to guard him
It is easily sealed between the piece of plate, it is convenient to the repair and maintenance at easy leak.
Preferably, above and below continuous wall interior panel projected depth position in the range of certain thickness, stirred using full hall cement
Stake reinforcing is mixed, reinforcing scope is according to design requirement beyond foundation pit range, most very much not super Systems of Red Line in Planning Based.This footing mainly has two
A effect, first, bottom heave is prevented, increases the stability of foundation pit；Second, as the position of fixity of underground wall interior panel, have simultaneously
Effect blocking side underground water pours in foundation pit；Third, overall stability of the enhancing foundation pit during excavating condition.
Preferably, the wall interior panel includes the prefabricated board that polylith mutually splices, the prefabricated board uses unified specification,
Modularized production, the wall interior panel is spliced by modular prefabricated board to be assembled, and can effectively improve construction efficiency, while improve work
Cheng Zhiliang.
Preferably, the stitching portion of the prefabricated board mutually spliced is provided with the first sealing structure.
Preferably, first sealing structure includes, be arranged on the prefabricated board stitching portion to mutual split
Protrusion and groove.
Preferably, first sealing structure further includes the recess for being arranged on the prefabricated board stitching portion, mutually splice
Recess between two pieces of prefabricated boards forms a sealing perfusion chamber.
Preferably, the backplate slot opens up position on the adjacent piling point line or is opened in described adjacent beat
Stake point line is connected towards the region on the outside of foundation pit, the backplate slot with the piling point.
Preferably, be provided with second seals structure between the wall interior panel and embedded rock pile, to by wall interior panel and embedding rock
Piece sealing between stake, strengthens waterproof effect.
Preferably, flexible glue is provided in the second seals structure, to further improve leakproofness.
Preferably, grouting way is high-pressure grouting in the step C, potting compound is adhesive, and high-pressure grouting to prevent
The formation of water layer is reliable and stable, and the connection at the edge and wall interior panel of waterproof layer is relatively reliable.
Preferably, the method successively constructed in the step D is：1. excavate out basement one from soil is whole downwards；
2. set up supporting beam and steel column；3. being laid with profiled sheet in the supporting beam, unearthed hole is reserved；4. underground two is excavated downwards
2. and 3. layer repeats step；5. repeating step 4., until entire basement N layers of structure is fully completed, N is design of basement layer
Number, step 3. and 4. during complete the closing of basement roof.
Preferably, in the step D, foundation pit uses basin excavation technology, according to design calculation result using slope or
The basin excavation mode of slope is not constructed, and when constructing using above two mode, using sliding mode technology form of construction work, uses T
Shape precast beam is constructed from basement one to underground N layers, successively horizontal to set up supporting beam, after all supporting beams have been constructed, lifting
Profiled sheet is fixed on the steel column of underground.
Preferably, cast-in-place or precast construction may be used in the supporting beam, floor uses profiled steel sheet combination floor skill
Art, cast-in-place supporting beam is with precast support beam there are the connecting interface for connecting profiled sheet, and supporting beam reserves and slab thickness
Identical height.
Preferably, the supporting beam uses composite beam technology, i.e., using precast beam block assembly, pre-erection and die mould
Steel plate connects；Floor is integrated with supporting beam cast-in-place after being combined by profiled sheet, is reserved in supporting beam and profiled sheet group
Close the Assembly interface of floor.Profiled sheet benefit be bottom do not have to support, high-strength light, with beam be attached and then after pour
Concrete forms beam slab system, and the bearing of floor is underground structure column.
Preferably, the method for lifting profiled sheet is：It is before top plate closing, the profiled sheet needed for underground is unified
It is folded to be suspended on corresponding steel column, using the sliding form apparatus being arranged on steel column, one layer is excavated, slides down to corresponding absolute altitude
It is docked position.
Basement structure is successively excavated downwards using the method for top-down excavation, while causing Underground Construction, ground
Face structure synchronization construction, improves building efficiency, effectively calculates casual labourer's phase.
In conclusion beneficial effects of the present invention：
1. frame of the present invention is inverse to make foldable assembled foundation pit structure construction method, substantially save for building
Material, short construction period.
2. frame of the present invention is inverse to make foldable assembled foundation pit structure construction method, the waterproof effect of basement
Good, quality control and repair and maintenance are easy.
3. frame of the present invention is inverse to make foldable assembled foundation pit structure construction method, used in work progress big
The prefabricated component splicing of amount, simplifies construction procedure, improves construction efficiency.
4. frame of the present invention is inverse to make foldable assembled foundation pit structure construction method, foundation pit space-time is made full use of
Effect principle, integrated application assembled technology, composite technology（Concrete composite beam, steel-mixed pressure shape steel plate）, the skills such as sliding mode technology
Art innovates construction technology and construction method, formed it is new it is inverse make underground structure and construction technology process, reach Deformation control requirement
Under the premise of, time cost and fund cost are saved, accelerates speed of application, achievees the effect that energy saving environmentally protective.
Description of the drawings
Fig. 1 is the stereoscopic schematic diagram of the present invention；
Fig. 2 is the stereoscopic schematic diagram of basement construction of the present invention；
Fig. 3 is the schematic diagram of grouting step of the present invention；
Fig. 4 is the schematic diagram of top-down excavation step of the present invention；
Fig. 5 is the schematic diagram that the present invention completes；
Fig. 6 is the schematic top plan view of the present invention；
Fig. 7 is the splicing schematic diagram of prefabricated board of the present invention；
Fig. 8 is the schematic top plan view of the embodiment of the present invention 3.
Specific embodiment
Specific examples below is only explanation of the invention, is not limitation of the present invention, art technology
Personnel can as needed make the present embodiment the modification of no creative contribution after this specification is read, but as long as
It is all protected in scope of the presently claimed invention by Patent Law.
With embodiment, the present invention is described in detail below in conjunction with the accompanying drawings.
Embodiment 1：
According to Fig. 1~Fig. 6, frame is inverse to make foldable assembled foundation pit structure construction method, includes the following steps：
A, it arranges foundation pit, designs the piling point 11 of foundation pit 1, squeeze into embedded rock pile 3 in each piling point 11, make pile foundation depth big
In basement depth, stake Soft Soil Layer 6 was penetrated into both and has squeezed into lithosphere 7, has formed socket end stake；
B, setting is gone along with sb. to guard him, and backplate slot 12 is dug between the piling point 11 at 1 edge of foundation pit, depth and the design of backplate slot 12 are applied
8 depth of basement of work matches, and wall interior panel 2 is then packed into slot；
C, bottom is in the milk, and grout hole 13 is opened up on native face 5, depth and the basement depth of grout hole 13 match, so
It is in the milk in backward grout hole 13, grouting way uses high-pressure grouting, and potting compound is adhesive, and waterproof is formed in the bottom of basement
Layer 4；
D, top-down excavation from 5 downward top-down excavation of native face, is successively constructed, the method successively constructed is：1. from native face 5 to
Lower entirety excavates out basement one, and foundation pit uses basin excavation technology, according to design calculation result using slope or non-slope
Basin excavation mode is constructed；2. setting up supporting beam 81 and steel column using sliding mode technology form of construction work level, supporting beam 81 is T shapes
Precast beam；3. profiled sheet 82 is laid in supporting beam 81 is made floor, unearthed hole 83 is reserved, there are connection die moulds for supporting beam 81
The connecting interface of steel plate, and supporting beam 81 reserves the height identical with slab thickness；4. excavating two layers of underground downwards, step is repeated
3. 2.；5. repeating step 4., until entire basement N layers of structure is fully completed, N is the design of basement number of plies, in step 3.
4. the closing of basement roof is completed during.
Embodiment 2：
The difference lies in stepb, certain thick up and down in continuous wall interior panel depth location with above-described embodiment 1
In the range of degree, using full hall Reinforcement with Cement-mixed Piles, reinforcing scope is according to design requirement beyond foundation pit range, most very much not super planning
Red line.
Embodiment 3：
The difference lies in supporting beam 81 uses composite beam technology, i.e., is segmented and filled using precast beam with above-described embodiment 1
Match, pre-erection is connect with profiled sheet；Floor is integrated with supporting beam 81 cast-in-place after being combined by profiled sheet, supporting beam 81
On be reserved with Assembly interface with profiled steel sheet combination floor.Profiled sheet benefit is that bottom does not have to support, high-strength light, with beam
It is attached and then rear pouring concrete forms beam slab system, the bearing of floor is underground structure column；Lift profiled sheet 82
Method is：It before top plate closing, is suspended on corresponding steel column the profiled sheet needed for underground is unified folded, using being arranged on steel
Sliding form apparatus on column excavates one layer, slides down to corresponding elevation location and docked.
Embodiment 4：
The difference lies according to Fig. 7, wall interior panel 2 includes the prefabricated board that polylith mutually splices with above-described embodiment 1
2a, the stitching portion of prefabricated board 2a mutually spliced are provided with the first sealing structure 21, and the first sealing structure 21 includes, is arranged on pre-
Making sheet 2a stitching portions to the protrusion 211 and groove 212 of mutual split and the recess for being arranged on prefabricated board 2a stitching portions
213, the recess 213 mutually spliced between two pieces of prefabricated board 2a forms a sealing perfusion chamber 214.
Backplate slot 12 opens up position on 11 lines of adjacent piling point, and backplate slot 12 is connected with piling point 11.
Second seals structure 22 is provided between wall interior panel 2 and embedded rock pile 3, setting is flexible in second seals structure 22
Glue.
Embodiment 5：
The difference lies according to Fig. 8, backplate slot 12 opens up position in phase with above-described embodiment 1 or embodiment 2
Neighbour's piling 11 lines of point are connected towards the region on the outside of foundation pit 1, backplate slot 12 with piling point 11.
Claims (9)
1. frame is inverse to make foldable assembled foundation pit structure construction method, which is characterized in that includes the following steps：
A, it arranges foundation pit, designs foundation pit（1）Piling point（11）, in each piling point（11）Squeeze into embedded rock pile（3）, make stake
Base depth is more than basement depth；
B, setting is gone along with sb. to guard him, in foundation pit（1）The piling point at edge（11）Between dig backplate slot（12）, the backplate slot（12）Depth
Match with the basement depth of design and construction, wall interior panel is then packed into slot（2）；
C, bottom is in the milk, in native face（5）On open up grout hole（13）, the grout hole（13）Depth and basement depth phase
Match, then to grout hole（13）Interior grouting forms waterproof layer in the bottom of basement（4）；
D, top-down excavation, from native face（5）Downward top-down excavation, successively constructs, the construction until completing entire basement；Wherein by
Layer construction method be：1. from native face（5）It is whole downwards to excavate out basement one；2. set up supporting beam（81）And steel column；③
In the supporting beam（81）Upper laying profiled sheet（82）, reserve unearthed hole（83）；4. excavating two layers of underground downwards, step is repeated
3. 2.；5. repeating step 4., until entire basement N layers of structure is fully completed, N is the design of basement number of plies, in step 3.
4. the closing of basement roof is completed during.
2. frame according to claim 1 is inverse to make foldable assembled foundation pit structure construction method, which is characterized in that described
Wall interior panel（2）The prefabricated board mutually spliced including polylith（2a）.
3. frame according to claim 2 is inverse to make foldable assembled foundation pit structure construction method, which is characterized in that mutually
The prefabricated board of splicing（2a）Stitching portion be provided with the first sealing structure（21）.
4. frame according to claim 3 is inverse to make foldable assembled foundation pit structure construction method, which is characterized in that described
Backplate slot（12）Open up position in the adjacent piling point（11）On line or it is opened in the adjacent piling point（11）Line
Towards foundation pit（1）The region in outside, the backplate slot（12）With the piling point（11）It is connected.
5. frame according to claim 4 is inverse to make foldable assembled foundation pit structure construction method, which is characterized in that described
Wall interior panel（2）With embedded rock pile（3）Between be provided with second seals structure（22）.
6. frame according to claim 1-5 any one is inverse to make foldable assembled foundation pit structure construction method, special
Sign is that grouting way is high-pressure grouting in the step C, and potting compound is adhesive.
7. frame according to claim 6 is inverse to make foldable assembled foundation pit structure construction method, which is characterized in that described
In step D, foundation pit uses basin excavation technology, is applied according to design calculation result using the basin excavation mode of slope or non-slope
Work when being constructed using above two mode, using sliding mode technology form of construction work, is constructed using T shapes precast beam from basement one
It is successively horizontal to set up supporting beam to underground N layers（81）, all supporting beams（81）After having constructed, profiled sheet is lifted（82）Gu
It is scheduled on the steel column of underground.
8. frame according to claim 7 is inverse to make foldable assembled foundation pit structure construction method, which is characterized in that described
Supporting beam（81）Using composite beam technology, i.e., using precast beam block assembly, pre-erection is connect with profiled sheet；Floor passes through
Profiled sheet combination after with supporting beam（81）Integrated cast-in-place, supporting beam（81）On be reserved with dress with profiled steel sheet combination floor
With interface.
9. frame according to claim 8 is inverse to make foldable assembled foundation pit structure construction method, which is characterized in that lifting
Profiled sheet（82）Method be：Before top plate closing, unified fold of the profiled sheet needed for underground is suspended to corresponding steel column
On, using the sliding form apparatus being arranged on steel column, one layer is excavated, corresponding elevation location is slid down to and is docked.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610657079.4A CN106400811B (en) | 2016-08-12 | 2016-08-12 | Frame is inverse to make foldable assembled foundation pit structure construction method |
| US15/623,535 US10138616B2 (en) | 2016-08-12 | 2017-06-15 | Inverse construction method for deep, large and long pit assembling structure of suspension-type envelope enclosure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610657079.4A CN106400811B (en) | 2016-08-12 | 2016-08-12 | Frame is inverse to make foldable assembled foundation pit structure construction method |
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| Publication Number | Publication Date |
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| CN106400811A CN106400811A (en) | 2017-02-15 |
| CN106400811B true CN106400811B (en) | 2018-07-06 |
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| CN201610657079.4A Active CN106400811B (en) | 2016-08-12 | 2016-08-12 | Frame is inverse to make foldable assembled foundation pit structure construction method |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107012871B (en) * | 2017-04-18 | 2019-02-12 | 武汉正远岩土科技有限公司 | A kind of suspension type goes along with sb. to guard him the deep reversed construction method for greatly enhancing foundation pit fabricated construction |
| CN107012948A (en) * | 2017-04-18 | 2017-08-04 | 武汉志和岩土工程有限公司 | A kind of basement floor building structural and its construction method |
| CN107012872B (en) * | 2017-05-26 | 2018-10-12 | 中国十九冶集团有限公司 | Construction method of sludge deep foundation pit |
| CN111778982B (en) * | 2020-06-12 | 2022-05-27 | 广州华磊建筑基础工程有限公司 | Earth subsection excavation method and device applied to subway deep foundation pit engineering |
| CN113006087B (en) * | 2021-03-15 | 2022-08-12 | 浙江省建筑科学设计研究院有限公司 | Foundation pit supporting method based on reverse construction method |
| CN113047265B (en) * | 2021-03-26 | 2023-04-28 | 郑州升达经贸管理学院 | CFG pile foundation reinforcing structure |
| CN113638444B (en) * | 2021-09-12 | 2023-03-07 | 中铁五局集团电务工程有限责任公司 | Reverse-construction slip form for circular foundation pit and construction method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204185845U (en) * | 2014-11-06 | 2015-03-04 | 中国电建集团中南勘测设计研究院有限公司 | A kind of water-proof pile board wall supporting and protection structure |
| CN105113513A (en) * | 2015-08-12 | 2015-12-02 | 南昌航空大学 | Anti-seepage foundation pit supporting structure and construction method |
| CN205012352U (en) * | 2015-09-30 | 2016-02-03 | 常州大学怀德学院 | Sheet pile supporting construction with stagnant water function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0849236A (en) * | 1994-05-13 | 1996-02-20 | Haseko Corp | Sheathing construction method |
-
2016
- 2016-08-12 CN CN201610657079.4A patent/CN106400811B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204185845U (en) * | 2014-11-06 | 2015-03-04 | 中国电建集团中南勘测设计研究院有限公司 | A kind of water-proof pile board wall supporting and protection structure |
| CN105113513A (en) * | 2015-08-12 | 2015-12-02 | 南昌航空大学 | Anti-seepage foundation pit supporting structure and construction method |
| CN205012352U (en) * | 2015-09-30 | 2016-02-03 | 常州大学怀德学院 | Sheet pile supporting construction with stagnant water function |
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