CN103806452A - High side slope support structure attached to underground structure outer wall - Google Patents
High side slope support structure attached to underground structure outer wall Download PDFInfo
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- CN103806452A CN103806452A CN201210460397.3A CN201210460397A CN103806452A CN 103806452 A CN103806452 A CN 103806452A CN 201210460397 A CN201210460397 A CN 201210460397A CN 103806452 A CN103806452 A CN 103806452A
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Abstract
The invention relates to the technical field of side slope support structures, and discloses a high side slope support structure attached to an underground structure outer wall. The high side slope support structure attached to the underground structure outer wall comprises first piling sections; inner concave area sections are formed between adjacent first piling sections; second piling sections are arranged for surrounding the peripheries of the inner concave area sections; the first piling sections comprise multiple first support piles; the second piling sections comprise multiple second support piles; the lower ends of the first support piles and the lower ends of the second support piles are arranged in a rock mass; the upper ends of the first support piles and the upper ends of the second support piles upwards extend; multiple prestressed anchor cables are arranged on the first piling sections; the inner concave area sections are provided with horizontal inner support structures. The combined support structure formed by the second support piles and the horizontal inner support structures is small in deformation and good in integral stability and is equal to a fixing-like support; the inner concave area sections are arranged between the adjacent first piling sections and are internally provided with the horizontal inner support structures, thus enhancing the stability and durability of the support structure, preventing the support structure from generating an overlarge horizontal displacement or damage and further preventing the underground structure from being deformed or damaged.
Description
Technical field
The present invention relates to the technical field of slope retaining structure, relate in particular to the high slope supporting and protection structure of being close to outer wall of underground structure.
Background technology
In current construction, Mountainous Building is more and more, wherein, has a kind of special side slope of being close to outer wall of underground structure to be called " foundation ditch type " side slope, and it plays pattern foundation pit supporting structure effect during Underground Construction, and after Underground Construction, it plays high slope effect.
Conventional side slope is open, allows to produce certain distortion, and between the operating period, constructor is very convenient to its Maintenance and Repair work.But, for " foundation ditch type " side slope, after the space backfill between underground structure and foundation pit walls, they during use cannot Maintenance and Repair, and slope retaining structure does not allow to destroy, and can not produce excessive displacement, otherwise will outer wall of underground structure be produced to huge horizontal thrust, the lighter causes outer wall cracking, bulging and infiltration, causes impact to use; Severe one will cause outer wall of underground structure directly to damage, and even underground structure slab column produces and damages, and brings about great losses.
For highly shorter " foundation ditch type " side slope, foundation pit supporting construction is as temporary lining technical measures, and outer wall of underground structure can doublely do slope supporting structure, bears slope ground pressure.For highly higher " foundation ditch type " high slope, slope supporting structure and outer wall of underground structure should divide and be arranged, and slope supporting structure is born whole slope ground pressure or residual pushing force, and slope supporting structure only allows to occur small distortion; If the space backfill between side slope and outer wall of underground structure, the soil pressure that outer wall of underground structure is born is calculated by earth pressue at rest conventionally.
In prior art, mainly adopt major diameter soldier pile to combine the supporting and protection structure forming with high-tonnage prestressed cable for the high slope supporting and protection structure of being close to outer wall of underground structure.But, after pit backfill, prestress anchorage cable anchor head is imbedded in backfill, after groundwater table is recovered, anchor head is in moist working environment, if the water resistance of anchor head sealing off and covering anchorage body is poor, or sealing off and covering anchorage body contacts not tight with soldier pile, the corrosion gradually of anchor cable steel strand, like this, is difficult to guarantee the permanently effective service behaviour of anchor cable; And when comparatively serious, prestress anchorage cable is entirely ineffective, the combined supporting structure of campshed and prestress anchorage cable has become cantilever retaining structure, the distortion of supporting and protection structure increases, the horizontal thrust that supporting and protection structure passes to outer wall of underground structure by backfill also increases, in the time that this horizontal thrust is greater than the design thrust that outer wall of underground structure bears, can there is large deformation in underground structure, even destroys.
Summary of the invention
The object of the present invention is to provide the high slope supporting and protection structure of being close to outer wall of underground structure, be intended to solve the combined supporting structure of employing campshed of the prior art and prestress anchorage cable, the phenomenon of anchor cable easy lost efficacy consequently underground structure generation large deformation or destruction.
The present invention realizes like this, be close to the high slope supporting and protection structure of outer wall of underground structure, comprise that multistage is the first row pile cutoff of wire along outer wall of underground structure, the alternate setting of multiple described first row pile cutoff, the indent section embedding in described high slope is set between adjacent described first row pile cutoff, around described indent section periphery, be provided with the second row pile cutoff that is wire, described first row pile cutoff comprises many alternate the first soldier piles that are wire layout, described second row pile cutoff comprises many alternate the second soldier piles that are wire layout, described the first soldier pile and described the second soldier pile lower end are placed in Rock And Soil, vertically upwards extend upper end, in described indent section, be provided with horizontal inner supporting structure.
Compared with prior art, owing to being provided with indent section between adjacent first row pile cutoff, and in indent section, be provided with horizontal inner supporting structure, like this, whole supporting and protection structure concave-convex surface is distributed, strengthened stability and the durability of supporting and protection structure, avoid supporting and protection structure to produce excessive horizontal movement between the long-term operating period and even destroy, thereby also avoid underground structure distortion, even destroy.
Accompanying drawing explanation
Fig. 1 is the cut-away illustration of the high slope supporting and protection structure of being close to outer wall of underground structure that provides of the embodiment of the present invention;
Fig. 2 is that A in Fig. 1 is to cut-away illustration;
Fig. 3 is that B in Fig. 1 is to cut-away illustration.
The specific embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The invention provides the high slope supporting and protection structure of being close to outer wall of underground structure, comprise that multistage is the first row pile cutoff of wire along outer wall of underground structure, the alternate setting of multiple described first row pile cutoff, the indent section embedding in described high slope is set between adjacent described first row pile cutoff, around described indent section periphery, be provided with the second row pile cutoff that is wire, described first row pile cutoff comprises many alternate the first soldier piles that are wire layout, described second row pile cutoff comprises many alternate the second soldier piles that are wire layout, described the first soldier pile and described the second soldier pile lower end are placed in Rock And Soil, vertically upwards extend upper end, in described indent section, be provided with horizontal inner supporting structure.
In the present invention, supporting and protection structure is set to concaveconvex structure shape, and indent section is provided with horizontal inner supporting structure and better plays a supporting role, and avoids supporting and protection structure to produce excessive distortion and even destroys, protection underground structure.
Below in conjunction with concrete accompanying drawing, realization of the present invention is described in detail.
As shown in Fig. 1 ~ 3, it is a preferred embodiment provided by the invention.
With reference to Fig. 1, high slope 3 supporting and protection structure 1 that the present embodiment provides are arranged on outer wall of underground structure 2 sides, be close to outer wall of underground structure 2, it comprises multiple campshed sections that distribute along outer wall of underground structure 2 outer side edges wire, the plurality of campshed section distributes alternately, and between adjacent campshed section, be provided with the indent section 14 embedding in high slope 3, be also provided with above-mentioned campshed section along the periphery of indent section 14.
Above-mentioned campshed section comprises that many are wire and alternate layout is the soldier pile of arranging shape, and soldier pile is vertical layout, and its lower end is plugged in Rock And Soil, and upwards vertically extend upper end.
Certainly, for the ease of narration, the campshed section of exterior wall 2 outer side edges is defined as first row pile cutoff, and soldier pile is wherein defined as the first soldier pile 11; Accordingly, the campshed section of indent section 14 peripheries is defined as second row pile cutoff, and soldier pile is wherein defined as the second soldier pile 12.Certainly, its structure is similar, and the first soldier pile 11 and the second soldier pile 12 can be rectangular piles, can be also toroidals, and concrete setting required to determine by practice of construction.
For better the second soldier pile 12 supporting in indent section 14, in indent section 14, be provided with inner supporting structure, this inner supporting structure comprises many horizontal shores 15, each horizontal shore 15 is connected on the second soldier pile 12.
In above-mentioned supporting and protection structure 1, owing to being provided with indent section 14 between adjacent first row pile cutoff, like this, make whole supporting and protection structure 1 be concavo-convex alternate shape, and in indent section 14, be provided with the inner supporting structure of horizontal distribution, like this, the inner supporting structure of indent section 14 forms a class fixed bearing, has strengthened the resistance to overturning of supporting and protection structure 1, avoids supporting and protection structure 1 produce excessive distortion or destroy, thereby can not cause underground structure to produce excessive distortion yet, even destroy.
Along the vertical direction of indent section 14, can lay multiple-layer horizontal inner supporting structure.
In the present embodiment, the horizontal shore 15 of inner supporting structure can be can be also angle brace to support, according to actual conditions, can select concrete arrangement form.
The stake top of many second soldier piles 12 of second row pile cutoff connects by hat beam 19.Horizontal shore 15 in above-mentioned can be connected to the stake top of the second soldier pile 12, and like this, horizontal shore 15 is connected on hat beam 19.The horizontal shore 15 of second row pile cutoff also can be arranged on the waist of the second soldier pile 12, is connected with many second soldier piles 12 by waist rail 18.
In order to reduce the span of horizontal shore 15, for longer horizontal shore 15, its medium position also can arrange column 16, and this column 16 is vertical layout, and upper end is connected on brace summer 15, and lower end extends in Rock And Soil.
On the first soldier pile 11 of above-mentioned first row pile cutoff, be connected with anchor cable 17, one end of anchor cable 17 is connected on the second soldier pile 11, and the other end extends in high slope 3 Rock And Soils.
Certainly, on above-mentioned each the first soldier pile 11, can be connected with multiple tracks anchor cable 17, concrete quantity can be decided according to the actual requirements.
In the present embodiment, the external corner place that the second row pile cutoff of first row pile cutoff and indent section 14 dual-sides forms is provided with back of the body straining beam 13, the two ends of this back of the body straining beam 13 are connected on the first soldier pile 11 and the second soldier pile 12, like this, can guarantee this better enabling capabilities in external corner place.
When after construction of underground structure completion, backfill is filled in the space between first row pile cutoff and second row pile cutoff and outer wall of underground structure.
The work progress of above-mentioned supporting and protection structure 1 is as follows:
1), smooth location, construct respectively the first soldier pile 11, the second soldier pile 12 and column 16, many first soldier piles 11 form first row pile cutoff, many second soldier piles 12 form second row pile cutoff;
2), cutter stake top, excavation foundation trench, build an apical cap beam 19;
3), for first row pile cutoff: successively earth excavation, successively prestressed anchor 17, the injecting cement paste maintenance post tensioning locking that expires of constructing of sequence of construction routinely, until soil excavation is to design altitude at the bottom of foundation ditch;
4), for indent section 14: after stake apical cap beam 19 is built or when stake apical cap beam 19 is built, build back of the body straining beam 13 and first floor horizontal shore 15; Successively soil excavation, successively builds horizontal shore 15 and waist rail 18; After horizontal shore 15He Xia road, Xia road waist rail 18 has been constructed, at the bottom of beam, surplus earth retains, and no longer continues to dig dark, and only the hole wall of contiguous outer wall of underground structure 2 sides is put slope excavation by certain from steady ratio of slope, until soil excavation is to design altitude at the bottom of foundation ditch;
5), after underground structure civil engineering completes, build the anchor head sealing off and covering anchorage body of the prestress anchorage cable 17 of first row pile cutoff; Space between underground structure and high slope 3 supporting and protection structure 1, backfill cohesive soil compacting.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. be close to the high slope supporting and protection structure of outer wall of underground structure, it is characterized in that, comprise that multistage is the first row pile cutoff of wire along outer wall of underground structure, the alternate setting of multiple described first row pile cutoff, the indent section embedding in described high slope is set between adjacent described first row pile cutoff, around described indent section periphery, be provided with the second row pile cutoff that is wire, described first row pile cutoff comprises many alternate the first soldier piles that are wire layout, described second row pile cutoff comprises many alternate the second soldier piles that are wire layout, described the first soldier pile and described the second soldier pile lower end are placed in Rock And Soil, vertically upwards extend upper end, in described indent section, be provided with horizontal inner supporting structure.
2. the high slope supporting and protection structure of being close to outer wall of underground structure as claimed in claim 1, is characterized in that, along the vertical direction of described indent section, is alternately provided with horizontal inner supporting structure described in multilayer.
3. the high slope supporting and protection structure of being close to outer wall of underground structure as claimed in claim 1 or 2, is characterized in that, described horizontal inner supporting structure comprises many brace summers, and the two ends of described brace summer are connected to described the second soldier pile.
4. the high slope supporting and protection structure of being close to outer wall of underground structure as claimed in claim 3, is characterized in that, described in be many second soldier piles tops that wire arranges and be provided with Guan Liang, the two ends of described brace summer are connected to described Guan Liang.
5. the high slope supporting and protection structure of being close to outer wall of underground structure as claimed in claim 3, is characterized in that, described in be many second soldier piles middle parts that wire arranges and be provided with waist rail, the two ends of described brace summer are connected to described waist rail.
6. the high slope supporting and protection structure of being close to outer wall of underground structure as claimed in claim 3, is characterized in that, in described indent section, is inserted with the column that is vertical extension, and described column is connected in described brace summer middle part.
7. the high slope supporting and protection structure of being close to outer wall of underground structure as claimed in claim 1, it is characterized in that, on described first row pile cutoff, multiple tracks prestress anchorage cable is set, described anchor cable one end is connected in described the first soldier pile, and the other end extends in the described high slope soil body.
8. the high slope supporting and protection structure of being close to outer wall of underground structure as claimed in claim 1 or 2, is characterized in that, the external corner place that the second row pile cutoff of described first row pile cutoff and described indent section dual-side forms is provided with back of the body straining beam.
9. the high slope supporting and protection structure of being close to outer wall of underground structure as claimed in claim 8, is characterized in that, described back of the body straining beam two ends are connected to described the first soldier pile and described the second soldier pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210460397.3A CN103806452B (en) | 2012-11-15 | 2012-11-15 | Be close to the high slope rockmass structure of outer wall of underground structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210460397.3A CN103806452B (en) | 2012-11-15 | 2012-11-15 | Be close to the high slope rockmass structure of outer wall of underground structure |
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| CN103806452A true CN103806452A (en) | 2014-05-21 |
| CN103806452B CN103806452B (en) | 2016-02-10 |
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| CN201210460397.3A Active CN103806452B (en) | 2012-11-15 | 2012-11-15 | Be close to the high slope rockmass structure of outer wall of underground structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404971A (en) * | 2014-11-26 | 2015-03-11 | 重庆大学 | Anti-skid supporting and retaining structure and high cutting slope strengthening construction method thereof |
| CN104532852A (en) * | 2014-12-23 | 2015-04-22 | 中国建筑西南勘察设计研究院有限公司 | Opposite-pull type prestressed pipe pile foundation pit supporting structure and mounting method thereof |
| CN108951668A (en) * | 2018-08-16 | 2018-12-07 | 重庆市地质矿产勘查开发局208水文地质工程地质队（重庆市地质灾害防治工程勘查设计院） | Combined prevention and control system for slope landslide caused by fill slope underground water |
| CN115217159A (en) * | 2022-09-01 | 2022-10-21 | 南京坤佳防水防腐保温工程有限公司 | Anti structure of splitting of basement outer wall |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88100236A (en) * | 1988-01-25 | 1988-10-19 | 北京市城区第四建筑工程公司 | Space structures slope protection pile (or board wall) |
| US20060002768A1 (en) * | 2004-06-30 | 2006-01-05 | Meyer John H | Corner connection for temporary shoring |
| KR20120001204A (en) * | 2010-06-29 | 2012-01-04 | 코오롱건설주식회사 | Retaining method using two rows pile and connector of two rows pile for the same |
| CN203034466U (en) * | 2012-11-15 | 2013-07-03 | 深圳市工勘岩土工程有限公司 | High slope supporting structure closely attached to underground structure external wall |
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2012
- 2012-11-15 CN CN201210460397.3A patent/CN103806452B/en active Active
Patent Citations (4)
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|---|---|---|---|---|
| CN88100236A (en) * | 1988-01-25 | 1988-10-19 | 北京市城区第四建筑工程公司 | Space structures slope protection pile (or board wall) |
| US20060002768A1 (en) * | 2004-06-30 | 2006-01-05 | Meyer John H | Corner connection for temporary shoring |
| KR20120001204A (en) * | 2010-06-29 | 2012-01-04 | 코오롱건설주식회사 | Retaining method using two rows pile and connector of two rows pile for the same |
| CN203034466U (en) * | 2012-11-15 | 2013-07-03 | 深圳市工勘岩土工程有限公司 | High slope supporting structure closely attached to underground structure external wall |
Non-Patent Citations (2)
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| 姚伯坤: "《排桩结合混凝土梁内支撑的基坑支护设计》", 《甘肃科技》 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404971A (en) * | 2014-11-26 | 2015-03-11 | 重庆大学 | Anti-skid supporting and retaining structure and high cutting slope strengthening construction method thereof |
| CN104532852A (en) * | 2014-12-23 | 2015-04-22 | 中国建筑西南勘察设计研究院有限公司 | Opposite-pull type prestressed pipe pile foundation pit supporting structure and mounting method thereof |
| CN108951668A (en) * | 2018-08-16 | 2018-12-07 | 重庆市地质矿产勘查开发局208水文地质工程地质队（重庆市地质灾害防治工程勘查设计院） | Combined prevention and control system for slope landslide caused by fill slope underground water |
| CN115217159A (en) * | 2022-09-01 | 2022-10-21 | 南京坤佳防水防腐保温工程有限公司 | Anti structure of splitting of basement outer wall |
| CN115217159B (en) * | 2022-09-01 | 2024-02-02 | 南京坤佳防水防腐保温工程有限公司 | Basement outer wall crack resistance structure |
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| Publication number | Publication date |
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| CN103806452B (en) | 2016-02-10 |
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Address after: 1501, Botai gongkan building, 8 Keji South 8th Road, high tech community, Yuehai street, Nanshan District, Shenzhen, Guangdong 518000 Patentee after: SHENZHEN GONGKAN GEOTECHNICAL GROUP Co.,Ltd. Address before: 518026 floors 20-22, middle building, Fujing building, Fuzhong Road, Futian District, Shenzhen, Guangdong Province Patentee before: SHENZHEN GONGKAN GEOTECHNICAL ENGINEERING Co.,Ltd. |
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