CN103061347A - Deep foundation pit support structure acting with soil - Google Patents
Deep foundation pit support structure acting with soil Download PDFInfo
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- CN103061347A CN103061347A CN2013100133121A CN201310013312A CN103061347A CN 103061347 A CN103061347 A CN 103061347A CN 2013100133121 A CN2013100133121 A CN 2013100133121A CN 201310013312 A CN201310013312 A CN 201310013312A CN 103061347 A CN103061347 A CN 103061347A
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Abstract
A deep foundation pit support structure acting with soil comprises vertical support piles beside a foundation pit, a horizontal pile plank clamped among the vertical support piles, and an injected concrete surface layer among the vertical support piles. The vertical support piles and the horizontal pile plank are fixedly connected through a surrounding purlin, and the injected concrete surface layer is arranged among the fixedly connected vertical support piles. By utilizing vertical force of soil covered on the horizontal pile plank as stable resisting force for overturning of the support structure, the deep foundation pit support structure is simple in form and convenient to construct, and the horizontal pile plank can be recycled. The deep foundation pit support structure has the advantages that construction efficiency is improved, reliability is high and construction application cost is low.
Description
Technical field
The present invention relates to the building foundation technical field, particularly relate to a kind of consideration soil and the interactional deep foundation pit supporting structure of supporting and protection structure.
Background technology
Along with the fast development of urban construction, the utilization of urban underground space resource more and more comes into one's own.In the development ﹠ construction of the underground space, the most important safety and stablization that how to guarantee deep pit digging, Underground Construction, peripheral existed building.
At present, the principal mode of deep foundation pit support has: campshed enclosure wall, soil nail wall, Cement-soil Gravity enclosure wall, diaphragm wall, steel sheet pile, reinforced concrete sheet pile etc. are as vertical soil blocking component, inner support, draw anchor etc. as level to confining part.Act on the foundation pit side-wall soldier pile (wall) load (active earth pressure) mainly by the passive earth pressure and the inner support that act on stake (wall) front foundation ditch subsoil, draw the horizontal force of anchor etc. to resist.
In general cutting depth adopts cantilevered stake (wall) less than 7 meters pattern foundation pit supporting structure, and the stable embedded depth by stake (wall) of foundation pit side-wall determines that often stake (wall) embedded depth is all very long, and the guarantee foundation ditch is stable.Also have in addition and adopt the gravity enclosure wall, but along with the increase of the excavation of foundation pit degree of depth, the gravity enclosure wall needs very large width and embedded depth, the guarantee foundation ditch is stable.
Cutting depth generally wants level to inner support being set or drawing anchor to come the very large active earth pressure of balance above 7 meters pattern foundation pit supporting structure, guarantees the stable of supporting and protection structure.Inner support is set not only increases cost, and has dwindled the construction space in the foundation ditch, causes claim for eot, expense to increase.Although and draw anchor to solve the problem of construction space in the foundation ditch, very easily cause the problem of drawing anchor to exceed building line, in addition on some bury stratum, draw the anchor-hold often not reach the requirement of design and cause the unstable of foundation pit supporting system.
In the soil-nail wall support system, as the working mechanism of the soil nailing of main bearing member with draw anchor similar, the stable horizontal pull that depends on soil nailing of soil nail wall, the horizontal pull of soil nailing is decided by the length of soil nailing, so its shortcoming with draw anchor identical.The spacing of soil nailing is generally all very little in addition, when construction, needs the earthwork to press the degree of depth of soil nailing setting, width subregion segmentation cooperation excavation, and operating mode is more, and the duration is longer.
At original underground structure and plan to build the supporting and protection structure of the local finite width soil body between the underground structure, often adopted the very large castinplace pile of rigidity as the cantilever branch fender pile or inner support is set or drawing anchor or soil nail wall etc. being set of wide-angle is set, long construction period not only, and cost is very high, and the castinplace pile of large rigidity causes very large waste.
Summary of the invention
Technical problem to be solved by this invention is: be to avoid above-mentioned the deficiencies in the prior art and a kind of consideration soil and the interactional deep foundation pit supporting structure of supporting and protection structure are provided, improve work efficiency, save time, reduce cost.
The technical scheme that adopts is:
Soil and the interactional deep foundation pit supporting structure of supporting and protection structure, comprise the vertical soldier pile that is arranged on the foundation ditch side and the level between the vertical soldier pile of being folded in to the sprayed mortar surface layer between sheet pile and the soldier pile, described vertical soldier pile and level are affixed by enclosing purlin to sheet pile, establish the sprayed mortar surface layer between the vertical soldier pile after affixed.
Described vertical soldier pile can be vertical H shaped steel soldier pile, encloses purlin is that H shaped steel encloses purlin, level to sheet pile be level to the channel-section steel sheet pile, it is affixed that described vertical H shaped steel soldier pile and level are enclosed the purlin full weld to the channel-section steel sheet pile by H shaped steel.
Described vertical soldier pile is the vertical soldier pile of steel concrete, level is that the steel concrete stress distribution is to sheet pile to sheet pile, enclosing purlin is reinforced concrete fortifield village purlin, and the vertical soldier pile of steel concrete and steel concrete stress distribution are affixed by reinforced concrete fortifield village purlin to sheet pile.
Described level can for together, also can be multiple tracks to sheet pile.
Beneficial effect of the present invention is:
The drag that supporting and protection structure of the present invention has utilized the gravity that covers the soil of the level of being pressed in above sheet pile to topple as opposing supporting and protection structure, thus keep the stable of supporting and protection structure.Avoid prior art level to be set to inner support or the various drawbacks of drawing anchor, saved cost.And level is prefabricated units to sheet pile, and recyclable reusing, and has namely shortened the duration and has reduced again cost.
Description of drawings
Fig. 1 is supporting and protection structure generalized section of the present invention.
Fig. 2 is supporting and protection structure elevational schematic view of the present invention.
Fig. 3 is the horizontal sheet pile generalized section of supporting and protection structure multiple tracks of the present invention.
Fig. 4 is the horizontal sheet pile elevational schematic view of supporting and protection structure multiple tracks of the present invention.
Fig. 5 is that supporting and protection structure power of the present invention is schematic diagram.
Embodiment one
Soil and the interactional deep foundation pit supporting structure of supporting and protection structure, shown in Figure 1, comprise the vertical soldier pile 1 that is arranged on the foundation ditch side and the level between the vertical soldier pile of being folded in to the sprayed mortar surface layer 4 between sheet pile 2 and the soldier pile, described vertical soldier pile 1 is affixed by enclosing purlin 3 to sheet pile 2 with level, establishes the sprayed mortar surface layer between the vertical soldier pile 1 after affixed.Described vertical soldier pile 1 for vertical H shaped steel soldier pile, enclose purlin 3 and enclose purlin for H shaped steel, level to sheet pile 2 be level to the channel-section steel sheet pile, it is affixed that described vertical H shaped steel soldier pile and level are enclosed the purlin full weld to the channel-section steel sheet pile by H shaped steel.
Embodiment two
As shown in Figure 3: the interactional deep foundation pit supporting structure of soil of the present invention and supporting and protection structure, can also the multiple tracks level be set to sheet pile 2 along with the foundation depth increase, this example be three road levels to sheet pile, other is identical with embodiment one.
Embodiment three
The present invention can also implement by the following technical programs, soil and the interactional deep foundation pit supporting structure of supporting and protection structure, described vertical soldier pile 1 is the vertical soldier pile of steel concrete, level is that the steel concrete stress distribution is to sheet pile to sheet pile 2, the vertical soldier pile of steel concrete and steel concrete stress distribution are affixed by reinforced concrete fortifield village purlin 3 to sheet pile, and other is identical with embodiment one.
The above is preferred embodiment of the present invention only, is not limited to the present invention, and is within the spirit and principles in the present invention all, any modification of making, is equal to replacement, improvement etc. and all should be included within protection scope of the present invention.
Claims (4)
- Soil with the interactional deep foundation pit supporting structure of supporting and protection structure, comprise the vertical soldier pile (1) that is arranged on the foundation ditch side and the level between the vertical soldier pile of being folded in to the sprayed mortar surface layer (4) between sheet pile (2) and the soldier pile, it is characterized in that described vertical soldier pile (1) and level are affixed by enclosing purlin (3) to sheet pile (2), establish sprayed mortar surface layer (4) between the vertical soldier pile (1) after affixed.
- 2. the interactional deep foundation pit supporting structure of soil according to claim 1 and supporting and protection structure, it is characterized in that described vertical soldier pile (1) for vertical H shaped steel soldier pile, enclose purlin (4) and enclose purlin for H shaped steel, level to sheet pile (2) be level to the channel-section steel sheet pile, it is affixed that vertical H shaped steel soldier pile and level are enclosed the purlin full weld to the channel-section steel sheet pile by H shaped steel.
- 3. the interactional deep foundation pit supporting structure of soil according to claim 1 and supporting and protection structure, it is characterized in that described vertical soldier pile (1) is the vertical soldier pile of steel concrete, level is that the steel concrete stress distribution is to sheet pile to sheet pile (2), enclosing purlin (3) is reinforced concrete fortifield village purlin, and the vertical soldier pile of steel concrete and steel concrete stress distribution are affixed by reinforced concrete fortifield village purlin to sheet pile.
- 4. the interactional deep foundation pit supporting structure of soil according to claim 1 and supporting and protection structure is characterized in that described level can for together, also can be multiple tracks to sheet pile (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100133121A CN103061347A (en) | 2013-01-15 | 2013-01-15 | Deep foundation pit support structure acting with soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100133121A CN103061347A (en) | 2013-01-15 | 2013-01-15 | Deep foundation pit support structure acting with soil |
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| CN103061347A true CN103061347A (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013100133121A Pending CN103061347A (en) | 2013-01-15 | 2013-01-15 | Deep foundation pit support structure acting with soil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642095A (en) * | 2017-06-02 | 2018-01-30 | 杨昌亚 | A kind of Composition Soil Nailing Walls strengthen the construction method of foundation pit side-wall rigidity |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078518A (en) * | 1993-03-20 | 1993-11-17 | 周茂源 | Method with U-steel, anchor concrete stake supporting deep-foundation side wall |
| JP2003003471A (en) * | 2001-06-20 | 2003-01-08 | East Japan Railway Co | Excavation and earth retaining method utilizing dead load of rear earth |
| CN1399040A (en) * | 2002-06-25 | 2003-02-26 | 孙学毅 | Deformation controlling method for ground-excavating engineering |
| CN201125387Y (en) * | 2007-11-22 | 2008-10-01 | 赵慧丽 | Middle beam pad iron assembly in anchor rod construction |
| KR20090091460A (en) * | 2008-02-25 | 2009-08-28 | 코오롱건설주식회사 | Soil retaining method for two rows pile using earth anchor |
| CN102286979A (en) * | 2011-05-26 | 2011-12-21 | 昆明二建建设（集团）有限公司 | Construction method for deep foundation pit supporting by adopting steel pipe piles-self-drilling prestressed anchor bars |
| CN203049589U (en) * | 2013-01-15 | 2013-07-10 | 中冶沈勘工程技术有限公司 | Deep foundation pit timbering structure based on interaction of soil and timbering structure |
-
2013
- 2013-01-15 CN CN2013100133121A patent/CN103061347A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078518A (en) * | 1993-03-20 | 1993-11-17 | 周茂源 | Method with U-steel, anchor concrete stake supporting deep-foundation side wall |
| JP2003003471A (en) * | 2001-06-20 | 2003-01-08 | East Japan Railway Co | Excavation and earth retaining method utilizing dead load of rear earth |
| CN1399040A (en) * | 2002-06-25 | 2003-02-26 | 孙学毅 | Deformation controlling method for ground-excavating engineering |
| CN201125387Y (en) * | 2007-11-22 | 2008-10-01 | 赵慧丽 | Middle beam pad iron assembly in anchor rod construction |
| KR20090091460A (en) * | 2008-02-25 | 2009-08-28 | 코오롱건설주식회사 | Soil retaining method for two rows pile using earth anchor |
| CN102286979A (en) * | 2011-05-26 | 2011-12-21 | 昆明二建建设（集团）有限公司 | Construction method for deep foundation pit supporting by adopting steel pipe piles-self-drilling prestressed anchor bars |
| CN203049589U (en) * | 2013-01-15 | 2013-07-10 | 中冶沈勘工程技术有限公司 | Deep foundation pit timbering structure based on interaction of soil and timbering structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642095A (en) * | 2017-06-02 | 2018-01-30 | 杨昌亚 | A kind of Composition Soil Nailing Walls strengthen the construction method of foundation pit side-wall rigidity |
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Application publication date: 20130424 |