CN202247947U

CN202247947U - Soil retaining structure with anti-sliding cement soil piles

Info

Publication number: CN202247947U
Application number: CN 201120378194
Authority: CN
Inventors: 刘全林; 宋伟民
Original assignee: Shanghai Qiangjin Foundation Engineering Co Ltd
Current assignee: Shanghai Qiangjin Foundation Engineering Co Ltd
Priority date: 2011-09-28
Filing date: 2011-09-28
Publication date: 2012-05-30
Anticipated expiration: 2021-09-28

Abstract

The utility model relates to a soil retaining structure with anti-sliding cement soil piles, which comprises cement soil piles in the vertical direction, vertical bored concrete piles, SMW (soil mixing wall) construction piles steel sheet piles or diaphram walls as well as cement soil reinforcing piles connected obliquely with the soil retaining structure through top pressing beams or waist beams. The soil retaining structure is characterized in that the cement soil reinforcing piles are same in length and dip angle. The anti-sliding cement soil reinforcing piles are spiral spray and mixing pile bodies. Ribs which are steel strands or steel wire ropes are inserted into the pile bodies. The structure above is designed, so that the pile bodies are good in anti-sliding performance. An anti-sliding soil retaining wall is formed by constructing the anti-sliding cement soil piles which are same in dip angle and length in different positions of soft soil layers to be combined with vertical retaining piles, thereby greatly increasing the anti-sliding force of a reinforced soil slope.

Description

A kind of soil-baffling structure that has the antiskid cement earth pile

Technical field

The utility model relates to the geotechnical engineering technical field, and concrete reinforcing that relates to a kind of rock construction and supporting and protection structure through adding cement-soil antiskid pile body in soft soil, and through combination, form a kind of retaining wall, improve its reinforcing and support capacity greatly.

Background technology

In the engineering construction in China area such as coastal, riverine, ubiquity foundation soil weakness, poor stability, the characteristics that bearing capacity is on the low side especially in the developed area, are used for ground processing and the employed expense of bracing of foundation pit, and will have more than hundred billion yuan every year.At present; In China's ground processing and bracing of foundation pit engineering; The soil-baffling structure that adopts mainly contains diaphragm wall, bored pile, soil nailing wall, SMW worker's method and piled anchor structure; Often there are many defectives in the construction technology of these structures and receive the restriction of engineering geology and construction environment, is difficult to pore-forming when running into silt soil strata, powder soil horizon or flour sand layer like soil nailing or anchor pole, the deep-mixed pile processing degree of depth is limited.Deep-mixed pile body itself usually only uses as water-stop curtain, and can not singlely use as soil-baffling structure because intensity is lower.In order to reach the native purpose of retaining, need be in deep-mixed pile H shaped steel, in diaphragm wall, bored pile combine, support or anchor pole, form soil-baffling structure, often like this cause big difficulty for design and construction, construction cost is significantly improved.

Use the difficulty of construction and the more high deficiency of cost of existence respectively in view of above-mentioned soil-baffling structure; Through experimental study for many years; We have invented a kind of new soil-baffling structure---antiskid cement earth pile retaining wall; This retaining wall has not only overcome all deficiencies of soil-baffling structure at present commonly used, and is a kind of not only safety, environmental protection but also economical and the new structure fast of constructing.

The utility model content

The utility model technical problem to be solved is, overcomes the problem that exists in the prior art, and a kind of retaining wall that has the antiskid cement earth pile is provided.

For the technical scheme that addresses the above problem the utility model is such:

A kind of soil-baffling structure that has the antiskid cement earth pile; Comprise the cement earth pile of vertical direction, vertical castinplace pile, the stake of SMW worker's method, steel sheet pile or diaphragm wall; With with its through the stake of putting more energy into of capping beam or the oblique cement-soil that links to each other of waist rail; It is characterized in that the cement-soil pile length of putting more energy into is identical, the inclination angle is identical.

The antiskid cement-soil is put more energy into stake for churning, stirring, rotary jet stirring pile body, is inserted with the muscle body in the pile body, and the muscle body is steel strand or wire rope

The beneficial effect of the utility model is:

(1) pile body skid resistance height: do same inclination angle through on the diverse location of soft layer, executing, make up, form the antiskid retaining wall and increased the skid resistance that is reinforced slight slope greatly with the antiskid cement earth pile and the vertical retaining stake of length;

(2) effectively control slope displacement:, the initial displacement of side slope is eliminated when the stretch-draw through the muscle body in the oblique antiskid cement earth pile is applied pretension;

(3) the combination antislide pile becomes overall structure: set up horizontal waling the oblique antiskid pile body on the same level is all locked above that; Combine with vertical retaining wall, make the oblique antiskid pile body of different level all be combined into an overall structure through vertical retaining wall.

Description of drawings

Specify the utility model below in conjunction with the accompanying drawing and the specific embodiment;

Fig. 1 is the described cross-sectional view that has the retaining wall of antiskid cement earth pile of the utility model.

Fig. 2 is the described horizontal development structural representation that has the retaining wall of antiskid cement earth pile of the utility model.

The specific embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.

Referring to Fig. 1 and Fig. 2; A kind of retaining wall that has the antiskid cement earth pile; Comprise that vertical direction retaining stake in a row constitutes retaining wall 1, retaining wall is connected with the stake 2 (shown in A1, A2, A3, A4 among the figure) of putting more energy into of oblique a plurality of oblique antiskid cement-soil, and the stake of putting more energy into of a plurality of antiskid cement-soils is connected the top or the waist of retaining stake; A plurality of antiskid cement-soils pile length of putting more energy into is identical, and the inclination angle is identical.The inclination angle scope is 0～90 °.The antiskid cement-soil stake of putting more energy into specifically is 0～90 ° with the angle theta of vertical direction.When θ was 0 °, the stake of putting more energy into of antiskid cement-soil was the stake of vertical direction.When θ was 90 °, the stake of putting more energy into of antiskid cement-soil was the stake of horizontal direction.

The stake 2 of putting more energy into of a plurality of antiskid cement-soils is connected on the horizontal waling at retaining stake top.

The stake 2 of putting more energy into of a plurality of antiskid cement-soils is connected on the waist rail of retaining stake waist.Among the figure, A2, A3, A4 connect waist rail 3, and A1 connects on the top, horizontal waling 4.

The retaining stake is the vertical cement earth pile of interior slotting strength body, vertical bored pile, the stake of SMW worker's method or steel sheet pile.

The antiskid cement-soil is put more energy into stake for churning, stirring pile body, is inserted with pretensioned muscle body in the pile body, and the muscle body is steel strand or wire rope.

This job practices that has the retaining wall of antiskid cement earth pile is:

(1), at first use single shaft, two or three mixing pile machines, offices and men's body and cement grout mix form EFFECT OF CEMENT STABILIZED SOIL RETAINING WALL or water-stop curtain;

(2), vertical soil blocking pile body is composited to insert (or several) core (shaped steel, steel pipe, steel strand, prestressed concrete pipe pile, the stake of prestressed concrete pipe side, precast reinforced concrete structure etc.) through vibration or extruding then.Perhaps make bored pile, diaphragm wall, steel sheet pile etc. as vertical soil blocking pile body;

(3), the oblique antiskid cement earth pile construction technology of construction be mode through rotary jet stirring by design point of view, usage level jet drill rig, pass water-stop curtain, form a large diameter antiskid cement earth pile;

(4), add muscle body material in the antiskid cement earth pile: adopt steel strand, wire rope or non-metal rope body, the method by disposable dispensing or secondary dispensing joins muscle body material and anchor ingot plate on the center of antiskid cement soil pile together

(5), set up the horizontal waling of meter: be combined into an integral body in order to make antiskid cement soil pile and vertical retaining wall; The waling of a level is set up in requirement; The waling material adopts shaped steel or Reinforced Concrete Materials to make; Make all the antiskid cement soil piles on this horizontal level be combined into an integral body, like Fig. 1, shown in 2 through this waling structure and vertical retaining wall;

(6), construction pretension: the muscle body material in the antagonism water skiing earth pile body adopts the mode of prestressed stretch-draw; Eliminate the initial deformation of muscle body and check the quality of antiskid cement soil pile; Be locked on the horizontal waling by about 80% of design stretching force, the equal tensioning fixation of each root antiskid cement earth pile that requires this level is on the waling of this level.

More than show and described the advantage of basic principle, principal character and the utility model of the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the manual that the utility model just is described; The utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.

Claims

1. soil-baffling structure that has the antiskid cement earth pile; Comprise the cement earth pile of vertical direction, vertical castinplace pile, the stake of SMW worker's method, steel sheet pile or diaphragm wall; With with its through the stake of putting more energy into of capping beam or the oblique cement-soil that links to each other of waist rail; It is characterized in that the cement-soil pile length of putting more energy into is identical, the inclination angle is identical.

2. a kind of soil-baffling structure that has the antiskid cement earth pile according to claim 1 is characterized in that, the antiskid cement-soil is put more energy into stake for churning, stirring, rotary jet stirring pile body, is inserted with the muscle body in the pile body, and the muscle body is steel strand or wire rope.