CN203924071U - A kind of foundation pit supporting construction - Google Patents
A kind of foundation pit supporting construction Download PDFInfo
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- CN203924071U CN203924071U CN201420068256.1U CN201420068256U CN203924071U CN 203924071 U CN203924071 U CN 203924071U CN 201420068256 U CN201420068256 U CN 201420068256U CN 203924071 U CN203924071 U CN 203924071U
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- row
- pile
- castinplace pile
- supporting construction
- foundation ditch
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Abstract
The utility model discloses a kind of foundation pit supporting construction, comprising: rotary churning pile and in insert in the Double-row-piles Structure in described rotary churning pile; Wherein, described rotary churning pile is the high-strength cement soil pile body being formed on the foundation ditch periphery soil body, and many described rotary churning piles mutually overlap and form stabilization zone; Described Double-row-piles Structure comprises first row castinplace pile, second row castinplace pile and is connected first row castinplace pile and the coupling beam at second row castinplace pile top, is reinforced concrete structure.The utility model proposes to solve under rich water weak soil complex geological condition and pass through a kind of Extra-Deep Foundation Pit scheme in the situation of foundation ditch top with complex barrier thing; When obstructions such as having cable passes through foundation ditch top, between castinplace pile, can adjust flexibly spacing, avoiding obstacles; Major diameter high-pressure rotary jet grouting pile overlaps effective sealing mutually, and controls the horizontal movement of the soil body outside hole together with double castinplace pile, meanwhile, applies the supporting and protection structure that castinplace pile forms in major diameter rotary churning pile, saves the outer construction plant of foundation ditch.
Description
Technical field
The utility model relates to construction engineering technical field, relates in particular to a kind of foundation pit supporting construction of underground construction.
Background technology
Along with the development of urbanization, the utilization of the underground space is more and more taken seriously, and base pit engineering has obtained larger development.The wider soft soil layer of the many distributions in China developed area, many deep-foundation pit engineerings carry out in city Fu Shui, weak soil environment.Because City Buried Pipeline is numerous, foundation ditch top often exists the obstructions such as critical cables, pipeline to pass through and cannot moving, has cut off the continuity of space enclosing structure, cannot adopt common underground continuous wall construction technique.Row Piles Supporting Structure can be adjusted pile spacing flexibly according to the position of obstruction, thus avoiding obstacles, but can cause the instability of foundation pit risk that pile spacing is excessive and wait generation because periphery stratum is too weak simultaneously.Adopt major diameter, high-intensity rotary churning pile to reinforce foundation ditch periphery weak soil, meanwhile, the supporting and protection structure that applies double castinplace pile and form in conjunction with foundation ditch inner support in rotary churning pile, can play sealing and the effect of gear soil preferably, and energy avoiding obstacles, saves again the outer construction plant of foundation ditch.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of foundation pit supporting construction, to pass through in foundation ditch situation with complex barrier thing under the weak geological conditions of complexity, provides supporting effect good supporting and protection structure.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of foundation pit supporting construction, comprising: comprising: rotary churning pile and in insert in the Double-row-piles Structure in described rotary churning pile; Wherein, described rotary churning pile is the high-strength cement soil pile body being formed on the foundation ditch periphery soil body, and many described rotary churning piles mutually overlap and form stabilization zone; Described Double-row-piles Structure comprises first row castinplace pile, second row castinplace pile and is connected first row castinplace pile and the coupling beam at second row castinplace pile top, is reinforced concrete structure.
Wherein, described first row castinplace pile and second row castinplace pile radial distribution are at foundation ditch periphery, and described first row castinplace pile is near foundation ditch, and described second row castinplace pile is away from foundation ditch.
Wherein, in described Double-row-piles Structure, the array pitch of first row castinplace pile and second row castinplace pile is adjustable.
Wherein, in described first row castinplace pile and second row castinplace pile, the spacing between castinplace pile is adjustable.
Wherein, described foundation pit supporting construction also comprises that foundation ditch supports, and it is supported between the first row castinplace pile that foundation ditch is inner relative, and described first row castinplace pile is near foundation ditch.
Wherein, described foundation pit supporting construction also comprises and encloses purlin, and it supports for connecting first row castinplace pile and foundation ditch.
Wherein, described foundation ditch supports and comprises multilayer, and its number of plies is according to foundation depth and difference.
Wherein, described foundation pit supporting construction is suitable for having in the scope that obstruction passes through, and described double-row pile is between obstruction.
Wherein, described foundation pit supporting construction is positioned at the position that the supporting and protection structure of other types disconnects.
Wherein, the supporting and protection structure of described other type comprises diaphragm wall.
The utility model has the advantage of: the utility model is to solve under complicated weak geological conditions to pass through a kind of scheme of going along with sb. to guard him in foundation ditch situation with complex barrier thing, be applicable to stratum and range of application: Fu Shui, Soft Clay environment, foundation ditch top exists the obstructions such as critical cables, pipeline to pass through and cannot moving, and foundation ditch has the construction space of 5m left and right outward.Major diameter high-pressure rotary jet grouting pile overlaps effective sealing mutually, and controls the horizontal movement of the soil body outside hole together with castinplace pile; Double castinplace pile top is connected and fixed formation Double-row-piles Structure by coupling beam, and Double-row-piles Structure has larger lateral rigidity, can obviously reduce the lateral deformation of foundation ditch; When having the obstructions such as cable through foundation ditch, campshed can be adjusted spacing, avoiding obstacles flexibly; Meanwhile, in major diameter rotary churning pile, apply the supporting and protection structure that castinplace pile forms, save outer construction plant, hole.
Accompanying drawing explanation
Fig. 1 is the facade structures schematic diagram of foundation pit supporting construction in the utility model;
Fig. 2 is the cross sectional representation of foundation pit supporting construction in the utility model.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is described in further detail.
Fig. 1 shows the facade structures schematic diagram of a kind of foundation pit supporting construction the utility model proposes.As shown in Figure 1, this supporting and protection structure comprises: the rotary churning pile forming on the foundation ditch 1 periphery soil body 7 and in insert in the double castinplace pile in described rotary churning pile.Described rotary churning pile mutually overlaps and forms stabilization zone 4,5, described stabilization zone is the high-strength cement soil pile body by cement paste and soil layer being thoroughly mixed to form by jet mixing method in foundation ditch 1 periphery soil layer, it is for reinforcing the soil body of foundation ditch periphery and forming water-stop curtain, and controls the horizontal movement of the soil body outside hole together with double castinplace pile.Described double castinplace pile consists of first row castinplace pile 2 and second row castinplace pile 3, their radial distribution are in the stabilization zone 4,5 of foundation ditch periphery, be that the construction in the rotary churning pile that forms stabilization zone 4 and 5 of first row castinplace pile 2 and second row castinplace pile 3 is made, it is made by steel concrete.
The top of described first row castinplace pile 2 and second row castinplace pile 3 is connected and fixed formation Double-row-piles Structure by coupling beam 6, and coupling beam 6 is reinforced concrete structure.Described Double-row-piles Structure is distributed in the inside, stabilization zone of foundation ditch 1 periphery, to form the supporting and protection structure of described foundation ditch.Described Double-row-piles Structure, when running into complex barrier thing and pass through above foundation ditch, can be adjusted flexibly pile spacing and arrange, avoiding obstacles.
In described Double-row-piles Structure, first row castinplace pile 2 is near foundation ditch 1, and second row castinplace pile 3 is away from foundation ditch 1, and foundation ditch 1 inside has foundation ditch and supports 11, for supporting relative first row castinplace pile 2; Described foundation ditch support 11 and first row castinplace pile 2 between by enclosing purlin 8, connect, foundation ditch supports 11 and enclose purlin 8 and be reinforced concrete structure.The number of plies of described support 11 is according to the degree of depth relative set of foundation ditch 1.
Wherein, radical and the position of rotary churning pile there is no particular restriction, as long as can play the effect of reinforcing the foundation ditch periphery soil body.In addition, the array pitch of double-row pile, spacing, position are all without specific (special) requirements, and described double castinplace pile is between obstruction, and its position and spacing etc. all can be adjusted according to the position of obstruction.
Fig. 2 shows the cross sectional representation of foundation pit supporting construction in the utility model.As shown in Figure 2, described foundation pit supporting construction comprises: first row castinplace pile 2, second row castinplace pile 3, major diameter high-pressure rotary jet grouting pile mutually overlap formation stabilization zone 4 and 5, coupling beam 6, for be connected foundation ditch support 11 and first row castinplace pile 2 enclose purlin 8 and foundation ditch supports 11.Described double castinplace pile is arranged in the rotary churning pile between obstruction.Described supporting and protection structure of the present utility model is connected the common supporting as foundation ditch 1 with the supporting and protection structure 10 of other types.The supporting and protection structure 10 of described other types can be the diaphragm wall disconnecting, and its existence due to obstruction 9 is disconnected, and at open position, adopts supporting and protection structure of the present utility model.
In the scope that the foundation pit supporting construction the utility model proposes is particularly useful for having obstruction to pass through in foundation ditch, set up, and be suitable for adopting digging method construction, lid digs the effect that top board plays protection, supports obstruction.Fig. 2 does not indicate that lid digs top board.
What the utility model proposed is to pass through a kind of Extra-Deep Foundation Pit scheme in the situation of foundation ditch top for solving under rich water weak soil complex geological condition with complex barrier thing; When obstructions such as having cable passes through foundation ditch top, between castinplace pile, can adjust flexibly spacing, avoiding obstacles; Major diameter high-pressure rotary jet grouting pile overlaps effective sealing mutually, and controls the horizontal movement of the soil body outside hole together with double castinplace pile, meanwhile, applies the supporting and protection structure that castinplace pile forms in major diameter rotary churning pile, can save the outer construction plant of foundation ditch.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a foundation pit supporting construction, is characterized in that, comprising: rotary churning pile and in insert in the Double-row-piles Structure in described rotary churning pile; Wherein, described rotary churning pile is the high-strength cement soil pile body being formed on the foundation ditch periphery soil body, and many described rotary churning piles mutually overlap and form stabilization zone; Described Double-row-piles Structure comprises first row castinplace pile, second row castinplace pile and is connected first row castinplace pile and the coupling beam at second row castinplace pile top, is reinforced concrete structure.
2. foundation pit supporting construction as claimed in claim 1, is characterized in that, described first row castinplace pile and second row castinplace pile radial distribution are at foundation ditch periphery, and described first row castinplace pile is near foundation ditch, and described second row castinplace pile is away from foundation ditch.
3. foundation pit supporting construction as claimed in claim 1, is characterized in that, in described Double-row-piles Structure, the array pitch of first row castinplace pile and second row castinplace pile is adjustable.
4. the foundation pit supporting construction as described in claim 1-3 any one, is characterized in that, the spacing in described first row castinplace pile and second row castinplace pile between castinplace pile is adjustable.
5. foundation pit supporting construction as claimed in claim 1, is characterized in that, also comprises that foundation ditch supports, and it is supported between the first row castinplace pile that foundation ditch is inner relative, and described first row castinplace pile is near foundation ditch.
6. foundation pit supporting construction as claimed in claim 5, is characterized in that, also comprises and encloses purlin, and it supports for connecting first row castinplace pile and foundation ditch.
7. the foundation pit supporting construction as described in claim 5 or 6, is characterized in that, described foundation ditch supports and comprises multilayer, and its number of plies is according to foundation depth and difference.
8. foundation pit supporting construction as claimed in claim 1, is characterized in that, described foundation pit supporting construction is suitable for having in the scope that obstruction passes through, and described double-row pile is between obstruction.
9. foundation pit supporting construction as claimed in claim 8, is characterized in that, described foundation pit supporting construction is positioned at the position that the supporting and protection structure of other types disconnects.
10. foundation pit supporting construction as claimed in claim 9, is characterized in that, the supporting and protection structure of described other type comprises diaphragm wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420068256.1U CN203924071U (en) | 2014-02-17 | 2014-02-17 | A kind of foundation pit supporting construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420068256.1U CN203924071U (en) | 2014-02-17 | 2014-02-17 | A kind of foundation pit supporting construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203924071U true CN203924071U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420068256.1U Expired - Fee Related CN203924071U (en) | 2014-02-17 | 2014-02-17 | A kind of foundation pit supporting construction |
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| CN (1) | CN203924071U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806449A (en) * | 2014-02-17 | 2014-05-21 | 中交公路规划设计院有限公司 | Supporting structure of foundation pit |
| CN104532855A (en) * | 2014-12-31 | 2015-04-22 | 云南建工基础工程有限责任公司 | Combined pile supporting structure in deep and thick peat soil layer |
| CN104594360A (en) * | 2014-12-31 | 2015-05-06 | 云南建工基础工程有限责任公司 | Composite double-row pile foundation pit supporting structure |
| CN105064377A (en) * | 2015-08-25 | 2015-11-18 | 中铁二院昆明勘察设计研究院有限责任公司 | Combined type foundation pit supporting pile structure |
-
2014
- 2014-02-17 CN CN201420068256.1U patent/CN203924071U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806449A (en) * | 2014-02-17 | 2014-05-21 | 中交公路规划设计院有限公司 | Supporting structure of foundation pit |
| CN104532855A (en) * | 2014-12-31 | 2015-04-22 | 云南建工基础工程有限责任公司 | Combined pile supporting structure in deep and thick peat soil layer |
| CN104594360A (en) * | 2014-12-31 | 2015-05-06 | 云南建工基础工程有限责任公司 | Composite double-row pile foundation pit supporting structure |
| CN105064377A (en) * | 2015-08-25 | 2015-11-18 | 中铁二院昆明勘察设计研究院有限责任公司 | Combined type foundation pit supporting pile structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20200217 |
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| CF01 | Termination of patent right due to non-payment of annual fee |