CN206706748U

CN206706748U - Wet spraying pile controlling stream modeling shape sea sand hydraulic reclamation area pile foundation

Info

Publication number: CN206706748U
Application number: CN201720514413.0U
Authority: CN
Inventors: 欧阳彦; 吴福居; 陈正斌; 左佑臣; 孟源; 李鹏; 李秋霜
Original assignee: CCCC First Highway Xiamen Engineering Co Ltd
Current assignee: CCCC First Highway Xiamen Engineering Co Ltd
Priority date: 2017-05-10
Filing date: 2017-05-10
Publication date: 2017-12-05
Anticipated expiration: 2027-05-10

Abstract

The utility model discloses a kind of wet spraying pile controlling stream modeling shape sea sand hydraulic reclamation area pile foundation, including design pile foundation, wet spraying pile and steel pile casting, several wet spraying piles are looped around around design pile foundation using designing pile foundation as the center of circle, adjacent wet spraying pile is provided with intersecting linkage section, the upper end of design pile foundation is set with steel pile casting, and the outer wall of steel pile casting is bonded with the outer face of adjacent wet spraying pile.Preferably, the vertical distance of the lower surface of steel pile casting to the upper surface of wet spraying pile is L, 1m >=L >=0.1m.The utility model substitutes the interim steel pile casting that lengthens using wet spraying pile and carries out local stiffening processing to unfavorable geology region Construction of Pile Bedding Boring, a circle wet spraying pile is provided with around design pile foundation and forms an annular curtain, play support action, it can so avoid lengthening the waste of steel pile casting, direct saving material cost, economic benefit are obvious.

Description

Wet spraying pile controlling stream modeling shape sea sand hydraulic reclamation area pile foundation

Technical field

The utility model belongs to Bridge Pile Foundation Construction technical field, more particularly to a kind of wet spraying pile controlling stream modeling shape sea sand is blown Fill out area's pile foundation.

Background technology

With the development of society, increasing Oversea bridge is progressively established, general coastal, riverine beach is mainly sea sand Barged-in fill and muck soil, shape is moulded in stream, expending die is larger during pile foundation construction, easily occurs collapse hole problem if not handling, Also increase pile foundation concreting cost simultaneously.Stream modeling shape sea sand hydraulic reclamation region pile foundation expending die traditional control method is to set Put and lengthen interim steel pile casting, steel pile casting must pass through the mud of stream modeling shape, carry out protectiveness construction.But this method is in sea sand hydraulic reclamation Area, steel pile casting can not be pulled out, and cause that steel pile casting waste of material is big, cost is high, and need to carry out casing and cut off, and be unfavorable for subsequently holding The excavation construction of platform, speed of application is slow, the duration is influenceed big.

Utility model content

The purpose of this utility model is to provide a kind of wet spraying pile controlling stream modeling shape sea sand hydraulic reclamation area pile foundation.

To reach above-mentioned purpose, the technical solution adopted in the utility model is：

A kind of wet spraying pile controlling stream modeling shape sea sand hydraulic reclamation area pile foundation, including design pile foundation, wet spraying pile and steel pile casting, several Wet spraying pile is looped around around design pile foundation using designing pile foundation as the center of circle, and adjacent wet spraying pile is provided with intersecting linkage section, designs stake The upper end of base is set with steel pile casting, and the outer wall of steel pile casting is bonded with the outer face of adjacent wet spraying pile.

Preferably, the vertical distance of the lower surface of steel pile casting to the upper surface of wet spraying pile is L, 1m >=L >=0.1m.

Preferably, described L=0.5m.

Preferably, described wet spraying pile is cement mixing pile.

The utility model this have the advantage that：

The utility model substitutes the interim steel pile casting that lengthens using wet spraying pile and unfavorable geology region Construction of Pile Bedding Boring is carried out Local stiffening processing, a circle wet spraying pile is provided with around design pile foundation and forms an annular curtain, support action is played, so may be used Avoid lengthening the waste of steel pile casting, direct saving material cost, economic benefit are obvious.

The utility model technology handles a trifle steel of pile foundation counter-boring techniques, top layer water proof and guide effect using wet spraying pile Casing can directly be hung out afterwards after excavation of foundation pit, eliminate the time for cutting off casing, shorten the project construction duration.

It is strong that the utility model technology significantly reduces worker's broken pile head, the work in levelling of the land on follow-up cushion cap excavation Degree.

Wet spraying pile controlling stream modeling shape sea sand hydraulic reclamation area piling strtucture of the present utility model is simple, difficulty of construction is small, construction effect Rate is high, improves pile foundation construction quality, has good economic and social benefit.

The utility model technological applicability is strong, construction is simple, is easy to promote.

Brief description of the drawings

Fig. 1 is the utility model structure diagram；

Fig. 2 is the A-A sectional views in Fig. 1；

Fig. 3 is the B enlarged drawings in Fig. 1；

In figure：1 is wet spraying pile, and 2 be design pile foundation, and 3 be ground, and 4 be steel pile casting, and 5 be intersecting linkage section.

Embodiment

As Figure 1-3, a kind of wet spraying pile controlling stream modeling shape sea sand hydraulic reclamation area pile foundation, including design pile foundation, wet spraying pile and Steel pile casting, several wet spraying piles are looped around around design pile foundation using designing pile foundation as the center of circle, and adjacent wet spraying pile is provided with intersecting Linkage section, the upper end for designing pile foundation are set with steel pile casting, and the outer wall of steel pile casting is bonded with the outer face of adjacent wet spraying pile.

So that 1.8m cast-in-situ bored pile is in some footpath as an example, mended and surveyed according to geology, this position goes out strata condition such as following table It is shown：

According to single shaft rotary churning pile churning scope, pressed by calculating in bridge pile foundation（Stake footpath 1.8m）Surrounding lays 11 wet shots Stake, wet spraying pile pile center is away from pile foundation center 1.4m.The vertical distance of the lower surface of steel pile casting to the upper surface of wet spraying pile is L, L= 0.5m。

This engineering wet spraying pile uses the ordinary cement mixing piles of φ 800, using #425 Portland cements, water-stop curtain Cement mixing content is 15%, the ratio of mud 0.28, inside mixes 0.2% calcium lignosulfonate and 0.05% triethanolamine.

It is as follows using single shaft cement mixing pile construction procedure：Levelling of the land → surveying and locating → rig is in place → slurrying → sinking → whitewashing stirring lifting → detergent line is stirred in advance and stirring-head → stake machine shifts → carries out next pile foundation construction

The utility model is applied has re-started observation to the process of pile foundation construction, and the pile foundation is described as：Pile Diameter is： 1.8m, friction pile, hole depth：60.56m, effective length 57.469m.Concrete consumption and hole depth in filling process（Hole depth is： Distance of the aperture away from concrete surface）Control such as following table：

Observed and found by filling process, after being safeguarded using wet spraying pile, the expending die of pile foundation is smaller and more It is stable, illustrate that the utility model application preferably controlling stream can mould shape sea sand hydraulic reclamation region pile foundation expending die, improve pile foundation Construction quality, popularization and application can be carried out in other pile foundation constructions.

Embodiment described above is only that preferred embodiment of the present utility model is described, and is not departing from this reality On the premise of new design spirit, various modifications that those of ordinary skill in the art make to the technical solution of the utility model And improvement, it all should fall into the protection domain of the utility model claims book determination.

Claims

A kind of 1. wet spraying pile controlling stream modeling shape sea sand hydraulic reclamation area pile foundation, it is characterised in that：Including design pile foundation, wet spraying pile and steel Casing, several wet spraying piles are looped around around design pile foundation using designing pile foundation as the center of circle, and adjacent wet spraying pile is provided with phase commissure Section is connect, the upper end for designing pile foundation is set with steel pile casting, and the outer wall of steel pile casting is bonded with the outer face of adjacent wet spraying pile.
2. wet spraying pile controlling stream modeling shape sea sand hydraulic reclamation area pile foundation as claimed in claim 1, it is characterised in that：The lower end of steel pile casting The vertical distance of face to the upper surface of wet spraying pile is L, 1m >=L >=0.1m.
3. wet spraying pile controlling stream modeling shape sea sand hydraulic reclamation area pile foundation as claimed in claim 2, it is characterised in that：Described L= 0.5m。
4. wet spraying pile controlling stream modeling shape sea sand hydraulic reclamation area pile foundation as claimed in claim 3, it is characterised in that：Described wet spraying pile For cement mixing pile.