CN203977433U - Soft Deep Foundation Pit engineering composite supporting construction - Google Patents
Soft Deep Foundation Pit engineering composite supporting construction Download PDFInfo
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- CN203977433U CN203977433U CN201420420021.4U CN201420420021U CN203977433U CN 203977433 U CN203977433 U CN 203977433U CN 201420420021 U CN201420420021 U CN 201420420021U CN 203977433 U CN203977433 U CN 203977433U
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Abstract
The utility model discloses a kind of Soft Deep Foundation Pit engineering composite supporting construction, comprise original support wall and newly-increased support wall, described newly-increased support wall is fitted on the medial surface of described original support wall, and extend towards excavation of foundation pit depth direction, between described newly-increased support wall and the binding face of described original support wall, be reserved with space, in described space, be filled with reinforcing force transfer body.The utility model is particularly useful for after soft clay area underground space pattern foundation pit supporting structure wall has completed, needing to carry out the situation that the underground space adds layer, be convenient to basement and add a layer safe excavation for the work progress earthwork, it can realize practicable under the prerequisite of general safety reliability that does not affect basement, the newly-increased support wall that adds layer basement area to occupying partly cuts, and effectively eliminates back newly-increased support wall occupying basement building area of the stage of building.
Description
Technical field
The utility model relates to Construction Technique of Underground Works field, relates in particular to a kind of Soft Deep Foundation Pit engineering composite supporting construction.
Background technology
In Soft Deep Foundation Pit engineering, the pattern foundation pit supporting structure wall length of integrally descending the reasons such as space planning adjustment, basement Function Extension to cause to have constructed due to region and intensity can not meet the requirement that the excavation of foundation pit degree of depth is deepened, and cannot realize thus layer demand that add of basement.
Therefore, the applicant is devoted to develop and a kind ofly can meets above-mentioned construction demand, is convenient to meet the excavation of foundation pit degree of depth in the underground space of having constructed and deepens the Soft Deep Foundation Pit engineering composite supporting construction requiring.
Utility model content
Because the above-mentioned deficiency of prior art, the utility model is to propose a kind of being convenient to meet in the underground space of having constructed the Soft Deep Foundation Pit engineering composite supporting construction that the excavation of foundation pit degree of depth is deepened requirement.
For achieving the above object, the utility model provides a kind of Soft Deep Foundation Pit engineering composite supporting construction, comprise original support wall and newly-increased support wall, described newly-increased support wall is fitted on the medial surface of described original support wall, and extend towards excavation of foundation pit depth direction, between described newly-increased support wall and the binding face of described original support wall, be reserved with space, in described space, be filled with reinforcing force transfer body.
Preferably, described reinforcing force transfer body is ground stabilization body.
Preferably, the wall top mark eminence of described newly-increased support wall is provided with steel bar concrete and encloses purlin, and the vertical reinforcement of described newly-increased support wall anchors into described steel bar concrete and encloses in purlin, and described steel bar concrete encloses purlin and also links together with described original support wall.
Preferably, described steel bar concrete encloses purlin and comprises and hang muscle, bar planting and steel concrete, described in hang muscle one end and be connected on described steel concrete, the other end is fixed in described original support wall, one end of described bar planting is implanted in described original support wall, and the other end is implanted in described steel concrete.
The beneficial effect of Soft Deep Foundation Pit engineering composite supporting construction of the present utility model is as follows:
1) the utility model is set up the newly-increased support wall of a row in original support wall inner side, and in reserved space, is filled with reinforcing force transfer body between described newly-increased support wall and described original support wall, constructs and has formed the reliable composite supporting construction of structure.
2) the utility model is particularly useful for after soft clay area underground space pattern foundation pit supporting structure wall has completed, needing to carry out the situation that the underground space adds layer, be convenient to the safe excavation that basement adds the earthwork of layer work progress, it is practicable under the prerequisite of general safety reliability that does not affect basement, the newly-increased support wall that adds layer basement area to occupying partly cuts, and effectively eliminates back newly-increased support wall occupying basement building area of the stage of building.
3) the utility model arranges steel bar concrete on newly-increased support wall wall top and encloses effective connection that purlin has been realized the old and new's support wall.
Below with reference to accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is described further, to understand fully the purpose of this utility model, feature and effect.
Accompanying drawing explanation
Fig. 1 is the application schematic diagram of specific embodiment Soft Deep Foundation Pit engineering composite supporting construction.
Fig. 2 is the A-A generalized section of Fig. 1.
Fig. 3 is the B place structure enlarged diagram of Fig. 1.
The specific embodiment
As depicted in figs. 1 and 2, a kind of Soft Deep Foundation Pit engineering composite supporting construction of the present embodiment, be applied in by underground two-layer structure add layer be the Soft Deep Foundation Pit engineering of F3/B3, the described soft clay area basement before not constructing is underground double-layer structure, and the described soft clay area basement after construction is F3/B3 structure.
The Soft Deep Foundation Pit engineering composite supporting construction of the present embodiment comprises original support wall 1 and newly-increased support wall 2, newly-increased support wall 2 is fitted on the medial surface of original support wall 1, and extend towards excavation of foundation pit depth direction, between newly-increased support wall 2 and the binding face of original support wall 1, be reserved with space, in described space, be filled with and reinforce force transfer body 3.
Exemplary, original support wall 1 of the present embodiment is diaphragm wall, a plurality of bored piles of newly-increased support wall 2 for being arranged side by side, the reinforcing force transfer body 3 that the present embodiment adopts is cast-in-situ concrete, is specially by rotary churning pile, to inject concrete grout and tamp the space between original support wall 1 and newly-increased support wall 2.
As shown in Figure 3, the present embodiment is provided with steel bar concrete in the wall top mark eminence of newly-increased support wall 2 and encloses purlin 4, and the vertical reinforcement of newly-increased support wall 2 anchors into steel bar concrete and encloses in purlin 4, and steel bar concrete encloses purlin 4 and also links together with original support wall 1.Wherein, steel bar concrete encloses purlin 4 and comprises and hang muscle 41, bar planting 42 and steel concrete 43, and hang muscle 41 one end and be connected on steel concrete 43, the other end is fixed in original support wall 1, one end of bar planting 42 is implanted in original support wall 1, and the other end is implanted in steel concrete 43.
Exemplary, the concrete applicable cases of the present embodiment Soft Deep Foundation Pit engineering composite supporting construction is as follows:
The present embodiment is applied in the Soft Deep Foundation Pit of underground two layers, be positioned at the medial surface place of original support wall 1 of Foundation Pit bottom, towards construct a plurality of bored piles of excavation of foundation pit depth direction, form and carry out the newly-increased support wall 2 of a row, and on space reserved between newly-increased support wall 2 and the binding face of original support wall 1, utilize rotary churning pile to inject concrete grout and tamp formation reinforcing force transfer body 3, original support wall 1, reinforcing force transfer body 3 and newly-increased support wall 2 threes effectively connect as one, and construct and have formed the reliable composite supporting construction of structure.The composite supporting construction providing based on the present embodiment, can effectively ensure that basement adds the further safe excavation of layer work progress earthwork, complete after soil excavation, can realize and not affecting under the prerequisite of basement general safety reliability, the newly-increased support wall that adds layer basement area to occupying partly cuts, and effectively eliminates back newly-increased support wall occupying basement building area of the stage of building.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without creative work.Therefore, all technician in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.
Claims (4)
1. a Soft Deep Foundation Pit engineering composite supporting construction, comprise original support wall, it is characterized in that, also comprise newly-increased support wall, described newly-increased support wall is fitted on the medial surface of described original support wall, and extend towards excavation of foundation pit depth direction, between described newly-increased support wall and the binding face of described original support wall, be reserved with space, in described space, be filled with reinforcing force transfer body.
2. Soft Deep Foundation Pit engineering composite supporting construction as claimed in claim 1, is characterized in that: described reinforcing force transfer body is cast-in-situ concrete.
3. Soft Deep Foundation Pit engineering composite supporting construction as claimed in claim 1, it is characterized in that: the wall top mark eminence of described newly-increased support wall is provided with steel bar concrete and encloses purlin, the vertical reinforcement of described newly-increased support wall anchors into described steel bar concrete and encloses in purlin, and described steel bar concrete encloses purlin and also links together with described original support wall.
4. Soft Deep Foundation Pit engineering composite supporting construction as claimed in claim 3, it is characterized in that: described steel bar concrete encloses purlin and comprises and hang muscle, bar planting and steel concrete, the described muscle one end of hanging is connected on described steel concrete, the other end is fixed in described original support wall, one end of described bar planting is implanted in described original support wall, and the other end is implanted in described steel concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420420021.4U CN203977433U (en) | 2014-06-24 | 2014-07-29 | Soft Deep Foundation Pit engineering composite supporting construction |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340231 | 2014-06-24 | ||
| CN201420340231.2 | 2014-06-24 | ||
| CN201420420021.4U CN203977433U (en) | 2014-06-24 | 2014-07-29 | Soft Deep Foundation Pit engineering composite supporting construction |
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| CN203977433U true CN203977433U (en) | 2014-12-03 |
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| CN201420420021.4U Active CN203977433U (en) | 2014-06-24 | 2014-07-29 | Soft Deep Foundation Pit engineering composite supporting construction |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775440A (en) * | 2015-04-21 | 2015-07-15 | 五洋建设集团股份有限公司 | Mineshaft-type underground garage deep foundation pit supporting structure |
| CN105178327A (en) * | 2015-07-17 | 2015-12-23 | 上海建工七建集团有限公司 | Composite retaining structure of foundation pit project and construction method thereof |
| CN105755948A (en) * | 2016-04-15 | 2016-07-13 | 上海市城市建设设计研究总院 | Trestle structure combined with smw (soil mixing wall) working method enclosure |
-
2014
- 2014-07-29 CN CN201420420021.4U patent/CN203977433U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775440A (en) * | 2015-04-21 | 2015-07-15 | 五洋建设集团股份有限公司 | Mineshaft-type underground garage deep foundation pit supporting structure |
| CN105178327A (en) * | 2015-07-17 | 2015-12-23 | 上海建工七建集团有限公司 | Composite retaining structure of foundation pit project and construction method thereof |
| CN105755948A (en) * | 2016-04-15 | 2016-07-13 | 上海市城市建设设计研究总院 | Trestle structure combined with smw (soil mixing wall) working method enclosure |
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