CN204418187U - Subway protection region soil nail wall is in conjunction with double-row pile deep foundation ditch composite supporting construction - Google Patents
Subway protection region soil nail wall is in conjunction with double-row pile deep foundation ditch composite supporting construction Download PDFInfo
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- CN204418187U CN204418187U CN201420863841.0U CN201420863841U CN204418187U CN 204418187 U CN204418187 U CN 204418187U CN 201420863841 U CN201420863841 U CN 201420863841U CN 204418187 U CN204418187 U CN 204418187U
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Abstract
A kind of subway protection region soil nail wall is in conjunction with double-row pile deep foundation ditch composite supporting construction, and it comprises the platform (7) of soil nailed wall retaining structure (10), Retaining Structure with Double-row Piles and the described soil nailed wall retaining structure of connection (10) and described Retaining Structure with Double-row Piles (11).Wherein, multiple soil nailing (5) hammers into perpendicular to the domatic compartment of terrain of soil nailed wall retaining structure (10), and described domatic extension steel mesh reinforcement sprayed mortar form the domatic net of soil nail wall and spray bank protection surface layer (6); Retaining Structure with Double-row Piles (11) has two campsheds perpendicular to foundation ditch (1), described campshed top arranges Guan Liang (2) respectively, coupling beam (3) lateral connection Guan Liang (2), the close foundation ditch side one side near the campshed (1) of foundation ditch hangs steel mesh reinforcement and sprayed mortar forms stake side net spray bank protection surface layer (4).
Description
Technical field
The utility model relates to technical field of building construction, particularly relates to the supporting and protection structure of a kind of subway protection region deep foundation ditch.
Background technology
Along with the fast development of Construction of Urban Rail Traffic, all kinds of engineering construction and Subway Facilities relation more and more closer, wherein engineering construction is also outstanding all the more to the security implication of Subway Facilities, particularly carry out deep pit digging security risk very greatly at Subway Facilities periphery, engineering safety accident happens occasionally.For ensureing the safety of Subway Facilities, the structure displacement of deep foundation pit in subway protection requirement subway protection regional extent must not be greater than the limit value that subway protection requires, Subway Facilities side must not adopt prestressing anchor support.
The conventional support system traditional for the deep foundation pit supporting structure in subway protection region mainly contains: side direction gear soil body system (as diaphragm wall, castinplace pile, steel pipe pile) and horizontal inner support (as bracing members, reinforced concrete support).
Because the span of deep big foundation pit is large, not only the stressed complexity of support system, node connect complicated to adopt traditional horizontal inner support support system, and cost is high, construction is complicated, long in time limit, construction space is limited, and the soil nail wall adopting without inner support in conjunction with double-row pile deep foundation ditch composite supporting construction, not only stressed clear and definite, construction simply, construction space is large, and substantially reducing the construction period, overall economic efficiency is obvious.But at present still there is following defect in conjunction with double-row pile deep foundation ditch composite supporting construction in soil nail wall: require that foundation ditch periphery has larger construction plant, geological conditions is very poor and foundation depth is very large time distortion large.In addition, how the basis of safe and applicable reducing the requirement to place, and expand the applicability under the condition that geology is poor and foundation ditch is dark, is the problem needing research further at present.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art; there is provided that a kind of stressed distinct, construction space is large in Subway Facilities protection zone, construction is simple, support system is out of shape little supporting and protection structure, the construction period can be shortened on the basis of safe and applicable, promote overall economic efficiency.
The purpose of this utility model is achieved by the following technical programs:
A kind of subway protection region soil nail wall that the utility model provides is in conjunction with double-row pile deep foundation ditch composite supporting construction; it comprises the soil nailed wall retaining structure being positioned at supporting and protection structure top; it has the domatic net spray bank protection surface layer of soil nail wall and soil nailing; be positioned at the Retaining Structure with Double-row Piles of supporting and protection structure bottom; it has campshed, Guan Liang and coupling beam
Platform connects described soil nailed wall retaining structure and described Retaining Structure with Double-row Piles; Wherein,
Mask for soil nailed wall retaining structure is the domatic of certain angle, and multiple described soil nailing hammers into described soil nailed wall retaining structure perpendicular to described domatic compartment of terrain, described domatic extension steel mesh reinforcement sprayed mortar forms the domatic net of soil nail wall sprays bank protection surface layer;
Retaining Structure with Double-row Piles has two campsheds perpendicular to foundation ditch, described campshed top arranges Guan Liang respectively, Guan Liang on campshed described in coupling beam lateral connection, the close foundation ditch side one side near the campshed of foundation ditch hangs steel mesh reinforcement and sprayed mortar forms stake side net spray bank protection surface layer.
Preferably, described campshed stake footpath is at least 1000 millimeters, and two campsheds are spaced apart between 1600 millimeters to 2400 millimeters.Between two campsheds, spacing is limited with the supporting intensity helping double-row pile.
Preferably, described berm width is 2 meters.Suitable berm width can firmly connect soil nailed wall retaining structure and Retaining Structure with Double-row Piles.
Preferably, soil nailed wall retaining structure top is provided with the water-stop curtain adopting double agitation pile sealing.Water-stop curtain contributes to the waterproof of soil nailed wall retaining structure.
More preferably, the domatic width of soil nailed wall retaining structure is high 1.25 times in slope.Suitable the ratio of width to height improves the intensity of soil nailed wall retaining structure.
More preferably, the length of soil nailing equals the domatic height of soil nailed wall retaining structure.The length of spike is limited with to the intensity helping improve soil nailed wall retaining structure.
More preferably, 1/3rd of its length of soil nailing interval described soil nailed wall retaining structure is hammered into.Suitable interval is limited with the intensity helping improve soil nailed wall retaining structure.
Supporting and protection structure of the present utility model does not adopt prestress anchorage cable, does not also adopt horizontal inner support, enormously simplify working procedure, expand construction space, and substantially reduce the construction period.
The present invention has following beneficial effect:
(1 contentedly facilities protection require: soil nail wall is in conjunction with double-row pile deep foundation ditch composite supporting construction without the need to adopting prestress anchorage cable, and Supporting Structure deformation is less, the related request of facilities protection contentedly.
(2 construction spaces are large, the duration is short: soil nail wall in conjunction with double-row pile deep foundation ditch composite supporting construction without the need to adopting horizontal inner support, for excavation of foundation pit, main structure construction create very favorable execution conditions, be conducive to accelerating construction progress, greatly shorten the construction period.
(3 working procedures are simple: soil nail wall has been constructed after soil nail wall and double soldier pile in conjunction with double-row pile deep foundation ditch composite supporting construction, without the need to performing other supporting and protection structure again, the complicated procedures of forming such as inner support are cut without layering supporting, layering, can on a large scale, the dig on a wide area earthwork, perform agent structure, enormously simplify working procedure, accelerating construction progress, overall economic efficiency is obvious.
Accompanying drawing explanation
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail:
Fig. 1 is the structural representation of the utility model embodiment.
In figure: campshed 1, hat beam 2, coupling beam 3, stake side net spray bank protection surface layer 4, soil nailing 5, soil nail wall domatic net spray bank protection surface layer 6, platform 7, water-stop curtain 8, agent structure 9, soil nailed wall retaining structure 10, Retaining Structure with Double-row Piles 11, soil nail wall is in conjunction with double-row pile deep foundation ditch composite supporting construction 12.
Below in conjunction with drawings and Examples, the utility model is further explained.
Detailed description of the invention
Figure 1 shows that embodiment of the present utility model, is the foundation ditch of office premises building.Foundation ditch shape is hexagon; foundation ditch west and east span, north and south span are all about 160m; foundation depth is 14.25m; foundation ditch east side; namely in Fig. 1, right side is depicted as the agent structure 9 of subway tunnel; foundation ditch is in Subway Facilities protection zone, and pattern foundation pit supporting structure does not allow to set prestress anchorage cable, and stricter to Supporting Structure deformation control overflow.For the protection of facilities contentedly requirement, and for meeting safety that Construction Party proposes, duration, economic dispatch requirement, therefore adopt the utility model soil nail wall in conjunction with double-row pile deep foundation ditch composite supporting construction.
As shown in Figure 1, be positioned at the soil nailed wall retaining structure 10 on supporting and protection structure 12 top, it has soil nail wall domatic net spray bank protection surface layer 6 and soil nailing 5, be positioned at the Retaining Structure with Double-row Piles 11 of supporting and protection structure 12 bottom, it has campshed 1, hat beam 2 and coupling beam 3, and platform 7 connects described soil nailed wall retaining structure 10 and described Retaining Structure with Double-row Piles 11.
Preferably, the wide 2.0m of platform 7.
Mask for soil nailed wall retaining structure 10 is the domatic of certain angle, and multiple described soil nailing 5 hammers into described soil nailed wall retaining structure 10 perpendicular to described domatic compartment of terrain, described domatic extension steel mesh reinforcement sprayed mortar forms the domatic net of soil nail wall sprays bank protection surface layer 6.
In preferred embodiment of the present utility model, the length of soil nailing 5 equals the domatic height of soil nailed wall retaining structure 10.
Preferably, the domatic width of soil nailed wall retaining structure 10 is high 1.25 times in slope.
More preferably, soil nail wall slope height 5m, the wide 6.25m in slope, slope body sets the soil nailing 5 of long 5m, and top, soil nail wall slope adopts double agitation pile sealing.1/3rd of its length of soil nailing 5 interval hammers into described soil nailed wall retaining structure 10.
Retaining Structure with Double-row Piles 11 has two campsheds 1 perpendicular to foundation ditch, described campshed top arranges hat beam 2 respectively, hat beam 2 on campshed 1 described in coupling beam 3 lateral connection, the close foundation ditch side one side near the campshed 1 of foundation ditch hangs steel mesh reinforcement and sprayed mortar forms stake side net spray bank protection surface layer 4.
Preferably, campshed 1 is bored pile, 1000 millimeters, its footpath, pile spacing 1600 millimeters inside it, outside pile spacing 2400 millimeters.More preferably, two campsheds 1 are spaced apart between 1600 millimeters to 2400 millimeters.
Preferably, soil nailed wall retaining structure 10 top is provided with the water-stop curtain 8 adopting double agitation pile sealing.
The setting of top soil nail wall and platform effectively reduces cantilever height and the lateral earth pressure of double-row pile; the portal frame construction of double-row pile effectively improves the cantilever ability of supporting and protection structure; reduce Supporting Structure deformation; meet the protection requirement of Subway Facilities preferably; provide sufficient construction space simultaneously; simplify working procedure, substantially reduce the construction period, obviously improve overall economic efficiency.
Although be below described embodiment of the present utility model by reference to the accompanying drawings, the utility model is not limited to above-mentioned specific embodiments and applications field, and above-mentioned specific embodiments is only schematic, guiding, instead of restrictive.Those of ordinary skill in the art, under the enlightenment of this manual and when not departing from the scope that the utility model claim is protected, can also make a variety of forms, and these all belong to the row of the utility model protection.
Claims (8)
1. a subway protection region soil nail wall is in conjunction with double-row pile deep foundation ditch composite supporting construction (12), and it comprises:
Be positioned at the soil nailed wall retaining structure (10) on supporting and protection structure (12) top, it has domatic net spray bank protection surface layer (6) of soil nail wall and soil nailing (5);
Be positioned at the Retaining Structure with Double-row Piles (11) of supporting and protection structure (12) bottom, it has campshed (1), Guan Liang (2) and coupling beam (3);
Platform (7) connects described soil nailed wall retaining structure (10) and described Retaining Structure with Double-row Piles (11); Wherein,
A mask for soil nailed wall retaining structure (10) is the domatic of certain angle, multiple described soil nailing (5) hammers into described soil nailed wall retaining structure (10) perpendicular to described domatic compartment of terrain, and described domatic extension steel mesh reinforcement sprayed mortar form the domatic net of soil nail wall and spray bank protection surface layer (6);
Retaining Structure with Double-row Piles (11) has two campsheds perpendicular to foundation ditch (1), described campshed top arranges Guan Liang (2) respectively, Guan Liang (2) on campshed (1) described in coupling beam (3) lateral connection, the close foundation ditch side one side near the campshed (1) of foundation ditch hangs steel mesh reinforcement and sprayed mortar forms stake side net spray bank protection surface layer (4).
2. subway protection region according to claim 1 soil nail wall is in conjunction with double-row pile deep foundation ditch composite supporting construction (12); it is characterized in that: described campshed (1) stake footpath is at least 1000 millimeters, two campsheds (1) are spaced apart between 1600 millimeters to 2400 millimeters.
3. subway protection region according to claim 1 soil nail wall is in conjunction with double-row pile deep foundation ditch composite supporting construction (12), it is characterized in that: described platform (7) width is 2 meters.
4. subway protection region according to claim 1 soil nail wall is in conjunction with double-row pile deep foundation ditch composite supporting construction (12), it is characterized in that: soil nailed wall retaining structure (10) top is provided with the water-stop curtain (8) adopting double agitation pile sealing.
5. subway protection region according to claim 1 soil nail wall is in conjunction with double-row pile deep foundation ditch composite supporting construction (12), it is characterized in that: the domatic width of soil nailed wall retaining structure (10) is high 1.25 times in slope.
6. subway protection region according to claim 1 soil nail wall is in conjunction with double-row pile deep foundation ditch composite supporting construction (12), it is characterized in that: the length of soil nailing (5) equals the domatic height of soil nailed wall retaining structure (10).
7. subway protection region according to claim 1 soil nail wall is in conjunction with double-row pile deep foundation ditch composite supporting construction (12), it is characterized in that: described campshed (1) is bored pile.
8. subway protection region according to claim 1 soil nail wall is in conjunction with double-row pile deep foundation ditch composite supporting construction (12), it is characterized in that: 1/3rd of its length of soil nailing (5) interval hammers into described soil nailed wall retaining structure (10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420863841.0U CN204418187U (en) | 2014-12-31 | 2014-12-31 | Subway protection region soil nail wall is in conjunction with double-row pile deep foundation ditch composite supporting construction |
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| CN201420863841.0U CN204418187U (en) | 2014-12-31 | 2014-12-31 | Subway protection region soil nail wall is in conjunction with double-row pile deep foundation ditch composite supporting construction |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064376A (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 structure with multiple rows of piles |
| CN105297797A (en) * | 2015-11-30 | 2016-02-03 | 浙江华展工程研究设计院有限公司 | Hoop support form for in-situ protection of existing building in underground space development |
| CN106400813A (en) * | 2016-10-28 | 2017-02-15 | 北京城建勘测设计研究院有限责任公司 | Foundation pit support system and construction method thereof |
| CN107542098A (en) * | 2017-10-12 | 2018-01-05 | 中国建筑第二工程局有限公司 | A kind of ultra-deep foundation pit supporting construction and its construction method |
| CN108978671A (en) * | 2018-07-12 | 2018-12-11 | 钱建良 | A kind of construction technology of soil nail wall |
| CN110144909A (en) * | 2019-05-21 | 2019-08-20 | 无锡市水利设计研究院有限公司 | A kind of soil-slope ruggedized construction and method |
| CN110258587A (en) * | 2019-05-07 | 2019-09-20 | 中铁第四勘察设计院集团有限公司 | The branch mark structure and construction method of side slope |
| CN110306559A (en) * | 2019-06-26 | 2019-10-08 | 广州穗岩土木科技股份有限公司 | A kind of construction method of subway entrance support pile |
| CN112211199A (en) * | 2020-04-06 | 2021-01-12 | 广东华星建设集团有限公司 | Large deep foundation pit supporting construction structure and method thereof |
-
2014
- 2014-12-31 CN CN201420863841.0U patent/CN204418187U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064376A (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 structure with multiple rows of piles |
| CN105297797A (en) * | 2015-11-30 | 2016-02-03 | 浙江华展工程研究设计院有限公司 | Hoop support form for in-situ protection of existing building in underground space development |
| CN106400813A (en) * | 2016-10-28 | 2017-02-15 | 北京城建勘测设计研究院有限责任公司 | Foundation pit support system and construction method thereof |
| CN106400813B (en) * | 2016-10-28 | 2019-02-19 | 北京城建勘测设计研究院有限责任公司 | A kind of foundation pit support system and its construction method |
| CN107542098A (en) * | 2017-10-12 | 2018-01-05 | 中国建筑第二工程局有限公司 | A kind of ultra-deep foundation pit supporting construction and its construction method |
| CN108978671A (en) * | 2018-07-12 | 2018-12-11 | 钱建良 | A kind of construction technology of soil nail wall |
| CN110258587A (en) * | 2019-05-07 | 2019-09-20 | 中铁第四勘察设计院集团有限公司 | The branch mark structure and construction method of side slope |
| CN110144909A (en) * | 2019-05-21 | 2019-08-20 | 无锡市水利设计研究院有限公司 | A kind of soil-slope ruggedized construction and method |
| CN110144909B (en) * | 2019-05-21 | 2020-10-20 | 无锡市水利设计研究院有限公司 | Method for reinforcing soil slope reinforcing structure |
| CN110306559A (en) * | 2019-06-26 | 2019-10-08 | 广州穗岩土木科技股份有限公司 | A kind of construction method of subway entrance support pile |
| CN112211199A (en) * | 2020-04-06 | 2021-01-12 | 广东华星建设集团有限公司 | Large deep foundation pit supporting construction structure and method thereof |
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Address after: 510034 Guangdong Province, Guangzhou city Whampoa District Science City Moon Road No. 101 A block 8 layer Patentee after: Co., Ltd of heavy industry Architecture Design Institute of Guangdong Province Address before: 510034 Guangdong city of Guangzhou province Yuexiu District Yuehua Road No. 116 Patentee before: Co., Ltd of heavy industry Architecture Design Institute of Guangdong Province |