CN202543946U - Supporting structure for drainage type fender posts in soft soil area - Google Patents

Supporting structure for drainage type fender posts in soft soil area Download PDF

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Publication number
CN202543946U
CN202543946U CN 201220175739 CN201220175739U CN202543946U CN 202543946 U CN202543946 U CN 202543946U CN 201220175739 CN201220175739 CN 201220175739 CN 201220175739 U CN201220175739 U CN 201220175739U CN 202543946 U CN202543946 U CN 202543946U
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China
Prior art keywords
fender post
supporting
protection
platform
soft clay
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CN 201220175739
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Chinese (zh)
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邢玉芳
楼永良
庄迎春
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Powerchina Huadong Engineering Corp Ltd
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Powerchina Huadong Engineering Corp Ltd
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Abstract

The utility model relates to a supporting structure for drainage type fender posts in a soft soil area, which has the advantages of convenience in construction and low cost and is used for reinforcing stability and reliability of a foundation pit. According to the technical scheme provided by the utility model, the support structure for the drainage type fender posts in a soft soil area has a foundation pit dug in a soft soil area and is 5-6m deep and is characterized in that a platform is arranged at the edge of the foundation pit and at the position 1.5-2.0m under the ground, a slope with a slope rate being 1:1-1:1.5 is arranged between the platform and the ground, directly downward fender posts are arranged at intervals under the platform, mixing piles are arranged among the fender posts, and at least one row of mixing posts is arranged at outside or inside the fender posts. The supporting structure for drainage type fender posts in a soft soil area is applicable to a soft soil foundation pit project, particularly to a foundation pit which is 5-6m deep.

Description

A kind of supporting and protection structure of soft clay area white-out formula fender post
Technical field
The utility model relates to a kind of supporting and protection structure of soft clay area white-out formula fender post.Be applicable to the soft soil foundation pit engineering, be particularly useful for digging the foundation ditch about dark about 5m ~ 6m.
Background technology
Along with rapid economy development, China's Coastal Areas particularly, the process of urbanization construction is accelerated day by day.China's Coastal Areas land resources is poor relatively; The land resources that can supply utilize is fewer and feweri; In order to increase the city living space, the exploitation of the underground space is more and more favored, and mostly the coastal area is weak soil; This has just produced a large amount of soft foundation Foundation Pit Support Design problems, and makes it to become the focus and the difficult point of current Foundation Design.
Soft clay area is dug the foundation ditch about dark about 5m~6m; Surrounding enviroment are not under the situation of harshness especially; More present this foundation ditch adopts gravity cement soil wall, composite soil nailing wall, steel sheet pile to add composite soil nailing wall etc. and goes along with sb. to guard him pattern; This kind form is prone to cause partial collapse or whole unstability owing to adopt flexible support or the insertion depth deficiency of sinking support stake often is out of shape greatlyyer, and is bigger to the surrounding enviroment influence; Under the harsh situation of surrounding enviroment, the form of going along with sb. to guard him adopts solid matter drilled pile, drilled pile or the stake of worker's method to add forms such as support, and this kind form good stability is out of shape for a short time, but goes along with sb. to guard him the cost height, and economy is relatively poor.
Summary of the invention
The technical problem that the utility model will solve is: to the problem of above-mentioned existence, the supporting and protection structure of a kind of easy construction, lower-cost soft clay area white-out formula fender post is provided, strengthens the stability and the reliability of foundation ditch.
The technical scheme that the utility model adopted is: a kind of supporting and protection structure of soft clay area white-out formula fender post; Have soft clay area and dig the foundation ditch of dark 5m ~ 6m; It is characterized in that: at the foundation ditch edge, below ground 1.5m~2.0m place establishes a platform, is the slope of ratio of slope 1:1~1:1.5 between platform and the ground, the following separation of platform fender post straight down; Replenished by agitation pile between the fender post, the outside of fender post or inboard increase by 1 row's agitation pile at least.
Said fender post is a castinplace pile, stake diameter 600mm~900mm, and pile spacing is 1.5 ~ 3.0 times of fender post diameter.
Said fender post is the stake of worker's method, stake diameter 600mm~900mm, and pile spacing is 1.5 ~ 3.0 times of fender post diameter.
Said fender post stake top is provided with Guan Liang and is linked to be integral body.
Wide 1m ~ the 3m of said platform.
This supporting and protection structure whole exposed domatic all the injection has layer of concrete.
Said foundation ditch surrounding ground excavation has the gutter.
The beneficial effect of the utility model is: the utility model is established a platform at below ground 1.5m~2.0m, and at platform place construction fender post, has increased the fender post insertion depth, reduces the possibility of partial collapse or whole unstability; The utility model adopts white-out formula fender post to combine structures such as agitation pile, and good stability be out of shape for a short time, and because of adopting the setting of fender post white-out formula, has reduced the engineering input, good economy performance.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the structural representation of the utility model embodiment 2.
Fig. 4 is the A-A sectional view of Fig. 3.
The specific embodiment
Embodiment 1: all have certain shortcoming and defect because soft clay area is dug the bracing of foundation pit form of dark 5m ~ 6m; Present embodiment is optimized existing space enclosing structure; A kind of novel form of going along with sb. to guard him has been proposed, a kind of supporting and protection structure of soft clay area white-out formula fender post.As shown in Figure 1, foundation ditch 8 edges that dig dark about 5m ~ 6m in soft clay area are provided with platform 4, and this platform is positioned at ground 7 following 1.5m~2.0m, the slope 5 of establishing ratio of slope 1:1~1:1.5 between platform 4 and the ground 7.
Platform be provided with below 4 white-out formula fender post 1 (castinplace pile or the stake of worker's method, diameter 600mm~900mm), this fender post separation, spacing are 1.5 ~ 3.0 times of (see figure 2)s of fender post 1 diameter, the insertion depth of fender post 1 is according to calculate confirming.Filled up in a row by agitation pile 2 between adjacent two fender posts 1, the fender post outside also is provided with row's agitation pile 2, to stop fender post 1 inter-pile soil.Fender post 1 top is provided with hat beam 3 and is linked to be integral body with it, makes total more stable.
Whole supporting and protection structure expose the domatic layer of concrete 9 that all sprays thick 80mm.Also excavation has gutter 6 on foundation ditch 8 peripheral ground 7.
Embodiment 2: like Fig. 3, shown in Figure 4; The structure of present embodiment and embodiment 1 are basic identical; Difference only is that present embodiment filled up in a row by agitation pile 2 between fender post 1, the fender post inboard also is provided with row's agitation pile 2, to stop fender post 1 inter-pile soil.
In conjunction with the foregoing description, can one row's agitation pile 2 all be set in fender post 1 inboard and the outside, to stop fender post 1 inter-pile soil.

Claims (7)

1. the supporting and protection structure of a soft clay area white-out formula fender post; Have soft clay area and dig the foundation ditch of dark 5m ~ 6m (8); It is characterized in that: establish a platform (4) at foundation ditch (8) edge, below ground 1.5m~2.0m place; It between platform (4) and the ground slope (5) of ratio of slope 1:1~1:1.5; The following separation of platform (4) fender post (1) is straight down replenished by agitation pile (2) between the fender post (1), and the outside of fender post (1) or inboard increase by 1 row's agitation pile (2) at least.
2. the supporting and protection structure of soft clay area white-out formula fender post according to claim 1 is characterized in that: said fender post (1) is a castinplace pile, stake diameter 600mm~900mm, and pile spacing is 1.5 ~ 3.0 times of fender post (1) diameter.
3. the supporting and protection structure of soft clay area white-out formula fender post according to claim 1 is characterized in that: said fender post (1) is the stake of worker's method, stake diameter 600mm~900mm, and pile spacing is 1.5 ~ 3.0 times of fender post (1) diameter.
4. the supporting and protection structure of soft clay area white-out formula fender post according to claim 1 is characterized in that: said fender post (1) stake top is provided with Guan Liang (3) and is linked to be integral body.
5. the supporting and protection structure of soft clay area white-out formula fender post according to claim 1 is characterized in that: the wide 1m ~ 3m of said platform (4).
6. the supporting and protection structure of soft clay area white-out formula fender post according to claim 1 is characterized in that: this supporting and protection structure whole exposed domatic all the injection has layer of concrete (9).
7. the supporting and protection structure of soft clay area white-out formula fender post according to claim 1 is characterized in that: said foundation ditch (8) surrounding ground excavation has gutter (6).
CN 201220175739 2012-04-24 2012-04-24 Supporting structure for drainage type fender posts in soft soil area Active CN202543946U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220175739 CN202543946U (en) 2012-04-24 2012-04-24 Supporting structure for drainage type fender posts in soft soil area

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220175739 CN202543946U (en) 2012-04-24 2012-04-24 Supporting structure for drainage type fender posts in soft soil area

Publications (1)

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CN202543946U true CN202543946U (en) 2012-11-21

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105756070A (en) * 2016-05-04 2016-07-13 山东大学 Assembled type foundation pit supporting and protecting structure system based on prefabricated members
CN111535334A (en) * 2020-05-20 2020-08-14 中建七局第一建筑有限公司 Construction method of double-core expanded pile anchor foundation pit supporting structure
CN111576435A (en) * 2020-04-17 2020-08-25 中建五局第三建设有限公司 Construction method and structure of column control slip surface of inter-pile soil steel structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105756070A (en) * 2016-05-04 2016-07-13 山东大学 Assembled type foundation pit supporting and protecting structure system based on prefabricated members
CN105756070B (en) * 2016-05-04 2018-01-12 山东大学 A kind of Fabricated Structure for Support of Excavation system based on prefabricated components
CN111576435A (en) * 2020-04-17 2020-08-25 中建五局第三建设有限公司 Construction method and structure of column control slip surface of inter-pile soil steel structure
CN111535334A (en) * 2020-05-20 2020-08-14 中建七局第一建筑有限公司 Construction method of double-core expanded pile anchor foundation pit supporting structure

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