CN203080536U - Foundation pit guard structure - Google Patents

Foundation pit guard structure Download PDF

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Publication number
CN203080536U
CN203080536U CN 201320060883 CN201320060883U CN203080536U CN 203080536 U CN203080536 U CN 203080536U CN 201320060883 CN201320060883 CN 201320060883 CN 201320060883 U CN201320060883 U CN 201320060883U CN 203080536 U CN203080536 U CN 203080536U
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CN
China
Prior art keywords
foundation pit
cofferdam
water
campshed
foundation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN 201320060883
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Chinese (zh)
Inventor
金勇�
郭雷
林玉叶
何健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Investigation Design and Research Institute Co Ltd SIDRI
Original Assignee
Shanghai Investigation Design and Research Institute Co Ltd SIDRI
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Publication date
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Priority to CN 201320060883 priority Critical patent/CN203080536U/en
Application granted granted Critical
Publication of CN203080536U publication Critical patent/CN203080536U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a foundation pit guard structure which comprises water retaining cofferdam structures and supporting structures, wherein the water retaining cofferdam structures are located on both sides of a foundation pit, the supporting structures are located in the foundation pit and used for connecting the water retaining cofferdam structures on the both sides, each water retaining cofferdam structure comprises a cofferdam body, a campshed is arranged on one side, close to water, of each cofferdam body, a guard post is arranged on one side, close to the foundation pit, of each cofferdam body, and each campshed and each guard post are connected through cofferdam pull rods. The foundation pit guard structure is combined with water retaining cofferdams effectively, not only can dry land construction conditions of wading engineering be ensured, but also guard requirements for excavation of a deep foundation pit can be met, an arrangement space of the cofferdams and the guard structure is reduced, and construction difficulty of excavation of the foundation pit is reduced. Meanwhile, the foundation pit guard structure also can play an effective basic seepage intercepting effect and solve the problem of leakage of the foundation pit.

Description

Foundation pit enclosure structure
Technical field
The utility model relates to foundation pit enclosure structure in a kind of water body.
Background technology
In the dense down town of building, especially intensive and river course can't need to build along river deep foundation ditch pivot building thing under the cutout situation at two sides, river course building, in the river course or lake central authorities build ribbon deep foundation ditch building, the deep pit digging of this type of engineering of paddling becomes an important topic of geotechnical engineering.Bracing of foundation pit system in the water body; it is a soil body; the mutual coefficient organism of water body and supporting and protection structure; because the safety requirements of surrounding buildings thing; the navigation requirement of river and lake and environmental protection are to the restriction of many-sided factors such as requirement of water body exchange; should satisfy the requirement of deep foundation pit construction during construction; reduce of the influence of temporary water dash building again to the navigation of river course overcurrent; to space enclosing structure in technology; there has been higher requirement safety and economic dispatch aspect; in this case, traditional cofferdam and foundation pit construction technology are through the difficult construction requirement that satisfies the deep foundation ditch building of paddling.
The utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of foundation pit enclosure structure, and this foundation pit enclosure structure can reduce the deep foundation ditch building excavation supporting difficulty of construction of paddling, and reduces the temporary works investment; Reduce the occupation of land space of construction period water retaining structure simultaneously, reduce the influence of foundation pit construction river course overcurrent and surrounding building; Effectively solve the building deep foundation pit construction excavation difficult problem of paddling, especially, stronger applicability is arranged for the deep foundation ditch building of paddling in the narrow space.
Reach other relevant purposes for achieving the above object, the utility model provides a kind of foundation pit enclosure structure, comprise the water-retaining cofferdam structure that is positioned at the foundation ditch both sides and be positioned at the braced structures that foundation ditch connects the both sides water-retaining cofferdam structure, described water-retaining cofferdam structure comprises the weir body, a described weir body side near water is provided with campshed, described weir body faces foundation ditch one side and is provided with fender post, is connected by the cofferdam pull bar between described campshed and described fender post.
Further, described water-retaining cofferdam structure top also is provided with weir crest construction passage.
Preferably, described campshed is the lightweight section plated construction, and described fender post is the campshed space enclosing structure.
Further, described braced structures is fixedlyed connected by enclosing purlin with described fender post.
As mentioned above, a kind of foundation pit enclosure structure of the present utility model combines foundation pit enclosure structure and water-retaining cofferdam are effective, the dry work condition of engineering had both effectively guaranteed to paddle, satisfied the requirement of going along with sb. to guard him of deep pit digging again, reduced the arrangement space of cofferdam and space enclosing structure, reduced the excavation of foundation pit difficulty of construction, and this foundation pit enclosure structure need not to build interim sidewalk in the foundation ditch, reduced the excavation of foundation pit floor space, side is provided with steel sheet pile and not only can solves protection of cofferdam upstream face and weir body antiseepage problem water-retaining cofferdam structure near water, can also play effective basis simultaneously and cut and ooze effect, solve the foundation ditch leakage problems.
Description of drawings
Fig. 1 is shown as the generalized section of space enclosing structure in a kind of water of the utility model.
The number in the figure explanation
1 weir body
2 campsheds
3 fender posts
4 cofferdam pull bars
5 weir crests construction passage
6 braced structuress
7 foundation ditches
8 foundation soils
The specific embodiment
Below by particular specific embodiment embodiment of the present utility model is described, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this manual.
See also Fig. 1.Notice, the appended graphic structure that illustrates of this manual, ratio, size etc., all only in order to cooperate the content that manual disclosed, understand and reading for person skilled in the art scholar, be not in order to limit the enforceable qualifications of the utility model, event is the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not influencing under effect that the utility model can produce and the purpose that can reach, the technology contents that all should still drop on the utility model and disclosed gets in the scope that can contain.Simultaneously, quoted in this manual as " on ", D score, " left side ", " right side ", " centre " reach the term of " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under no essence change technology contents, when also being considered as the enforceable category of the utility model.
Figure 1 shows that the structural representation of a kind of foundation pit enclosure structure of the utility model, comprise the water-retaining cofferdam structure that is positioned at foundation ditch 7 vertical cut section both sides and be positioned at the braced structures 6 that foundation ditch 7 connects the both sides water-retaining cofferdam structure, braced structures 6 is positioned at foundation ditch 7 middle positions, water-retaining cofferdam structure comprises weir body 1, weir body 1 side near water is provided with campshed 2, weir body 1 faces foundation ditch 7 one sides and is provided with fender post 3, and 3 of campshed 2 and fender posts are connected by cofferdam pull bar 4.
Water-retaining cofferdam structure top also is provided with weir crest construction passage 5, but the transportation of convenient construction phase material, and campshed 2 is the lightweight section sheet pile structure, fender post 3 is the campshed space enclosing structure, and braced structures 6 is fixedlyed connected by enclosing purlin with fender post 3, and installs the lattice column connection in foundation ditch 7 interpositions.
This water-retaining cofferdam structure adopts double-row pile to the structure of drawing, banket in the centre, and the cofferdam section is little, has reduced the arrangement space of cofferdam and space enclosing structure, has reduced foundation ditch 7 excavation construction difficulty, and it is narrow or have navigation to require to arrange limited situation to be particularly useful for the river course; The lightweight section plated construction is adopted in the cofferdam campshed 2 of side near water, and it is space enclosing structure that the fender post of foundation ditch 7 one sides does 3, and antislide pile is stablized in the double cofferdam of doing.
Soil, packeted soil or packed sand etc. can be filled in weir body 1 inside of this water-retaining cofferdam structure, the fender post 3 of foundation ditch 7 one sides is the fender post structure of steel sheet pile, steel pipe pile, concrete sheet-piling, bored pile, the stake of SMW worker's method or other pattern, fender post 3 is located at the cofferdam and is faced foundation ditch 7 one sides and go deep in the foundation soil, as the supporting and protection structure of cofferdam foundation ditch 7 one side vertical cuts, fender post 3 also can doublely be done and prevent the stable antislide pile of cofferdam to foundation ditch 7 one side slips simultaneously.In actual mechanical process, visual foundation ditch 7 cutting depths of braced structures quantity and stability in the foundation ditch 7 between the twice water-retaining cofferdam are adjusted, and can set up lattice column in the braced structures centre position if necessary according to the distance between the scope adjustment twice water-retaining cofferdam of foundation ditch 7 excavations.
During concrete enforcement, at first build water-retaining cofferdam structure in foundation ditch 7 excavation face both sides, the cofferdam is provided with braced structures 6 in the centre position of foundation ditch 7 after building and finishing, just can under the protection of water-retaining cofferdam structure and space enclosing structure, carry out the excavation work of foundation ditch 7 below foundation soils 8 after finishing; When water-retaining cofferdam structure fills, be connected the weir body 1 of jettisoninging subsequently by cofferdam pull bar 4 between earlier injection campshed 2 and the fender post 3 on the water, campshed 2 and fender post 3, promptly, lay weir crest construction passage 5 at last at the top, cofferdam to campshed 2 and 3 heap sands of fender post or soil.
The utlity model has following technique effect:
1, the utility model combines foundation pit enclosure structure and water-retaining cofferdam structure are effective, can solve the dry work condition of the engineering of paddling effectively, can satisfy the requirement of going along with sb. to guard him of deep pit digging again;
2, compare with traditional foundation pit construction scheme, the water-retaining cofferdam structure of the utility model both sides adopts fill structure in the double-row pile, the cofferdam section is little, reduced the arrangement space of cofferdam and space enclosing structure, reduced the excavation of foundation pit difficulty of construction, it is narrow or have navigation require to arrange limited situation to be particularly useful for the river course;
3, the utility model space enclosing structure directly utilizes the weir crest of water-retaining cofferdam structure as the transport of materials passage, material need not by transporting in the foundation ditch, so need not to build interim sidewalk in the foundation ditch, thereby significantly reduced excavation of foundation pit floor space and space enclosing structure axial length;
4, water-retaining cofferdam structure adopts the double-row pile fill structure, and the campshed injection is convenient, fast, and the energy accelerating construction progress shortens the construction period, forms excavation pit fast;
5, compare with the constructure scheme that traditional foundation pit enclosure structure and interim cofferdam are provided with respectively, the utility model has reduced the structure stake of cofferdam foundation ditch side, and the expense of temporary works measure has reduced construction cost when promptly significantly having reduced construction;
6, water-retaining cofferdam near water the campshed 2 of a side adopt the lightweight section plated constructions, have anti-seepage effect and scour resistance preferably, not only can solve the problem of cofferdam upstream face protection and weir body antiseepage, can play simultaneously effective basis cuts and oozes effect, solve the foundation ditch leakage problems, especially on the river course of weak permeability ground, this space enclosing structure has better compliance and feasibility.
In sum, a kind of foundation pit enclosure structure of the utility model can reduce the deep foundation ditch building excavation supporting difficulty of construction of paddling, reduce the occupation of land space of construction period water retaining structure simultaneously, reduce the influence of foundation pit construction, effectively solve the building deep foundation pit construction excavation difficult problem of paddling river course overcurrent and surrounding building.So the utility model has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.The foregoing description is illustrative principle of the present utility model and effect thereof only, but not is used to limit the utility model.Any person skilled in the art scholar all can be under spirit of the present utility model and category, and the foregoing description is modified or changed.Therefore, have in the technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of being finished under spirit that the utility model discloses and the technological thought, must be contained by claim of the present utility model.

Claims (4)

1. foundation pit enclosure structure, it is characterized in that, comprise the water-retaining cofferdam structure that is positioned at foundation ditch (7) both sides and be positioned at the braced structures (6) that foundation ditch (7) connects the described water-retaining cofferdam structure in both sides, described water-retaining cofferdam structure comprises weir body (1), described weir body (a 1) side near water is provided with campshed (2), described weir body (1) faces foundation ditch (7) one sides and is provided with fender post (3), is connected by cofferdam pull bar (4) between described campshed (2) and described fender post (3).
2. foundation pit enclosure structure according to claim 1 is characterized in that, described water-retaining cofferdam structure top also is provided with weir crest construction passage (5).
3. foundation pit enclosure structure according to claim 1 is characterized in that, described campshed (2) is the lightweight section plated construction, and described fender post (3) is the campshed space enclosing structure.
4. foundation pit enclosure structure according to claim 1 is characterized in that, described braced structures (6) is fixedlyed connected by enclosing purlin with described fender post (3).
CN 201320060883 2013-02-01 2013-02-01 Foundation pit guard structure Withdrawn - After Issue CN203080536U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320060883 CN203080536U (en) 2013-02-01 2013-02-01 Foundation pit guard structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320060883 CN203080536U (en) 2013-02-01 2013-02-01 Foundation pit guard structure

Publications (1)

Publication Number Publication Date
CN203080536U true CN203080536U (en) 2013-07-24

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Application Number Title Priority Date Filing Date
CN 201320060883 Withdrawn - After Issue CN203080536U (en) 2013-02-01 2013-02-01 Foundation pit guard structure

Country Status (1)

Country Link
CN (1) CN203080536U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103981873A (en) * 2014-05-28 2014-08-13 德清鑫德机械有限公司 Angle brace device for supporting of foundation pit
CN104060618A (en) * 2014-07-04 2014-09-24 上海建工七建集团有限公司 Method for designing foundation pit support
CN109505298A (en) * 2015-10-26 2019-03-22 张继红 A kind of self-balancing foundation pit enclosure method
CN113090066A (en) * 2021-04-16 2021-07-09 华润建筑有限公司 Construction method for newly added entrances and exits of existing buildings and elevator shaft

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103981873A (en) * 2014-05-28 2014-08-13 德清鑫德机械有限公司 Angle brace device for supporting of foundation pit
CN103981873B (en) * 2014-05-28 2016-01-06 德清鑫德机械有限公司 A kind of angle brace device for pattern foundation pit supporting structure
CN104060618A (en) * 2014-07-04 2014-09-24 上海建工七建集团有限公司 Method for designing foundation pit support
CN109505298A (en) * 2015-10-26 2019-03-22 张继红 A kind of self-balancing foundation pit enclosure method
CN113090066A (en) * 2021-04-16 2021-07-09 华润建筑有限公司 Construction method for newly added entrances and exits of existing buildings and elevator shaft

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Granted publication date: 20130724

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Effective date of abandoning: 20220419

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