CN202108039U

CN202108039U - Cylindrical compound concrete macadam placepile

Info

Publication number: CN202108039U
Application number: CN2011201574908U
Authority: CN
Inventors: 王伟
Original assignee: University of Shaoxing
Current assignee: University of Shaoxing
Priority date: 2011-05-18
Filing date: 2011-05-18
Publication date: 2012-01-11
Anticipated expiration: 2021-05-18

Abstract

The utility model discloses a cylindrical compound concrete macadam placepile which consists of a pile core and a macadam pile cover, wherein the pile core is formed by pouring cylindrical concrete, the macadam pile cover is poured with the pile core together, the pile core and the macadam pile cover are poured together to form a hydraulic compound pile body, and a reinforcement cage is erected in the pile core. The cylindrical compound concrete macadam placepile reduces and even eliminates the defect that the side deformation of a traditional macadam pile is larger, can effectively control the vertical sedimentation of a soft soil foundation, and can ensure the safe operation and use of an upper structure.

Description

A kind of cylinder type concrete crushed stone composite filling pile

Technical field

The utility model relates to a kind of cylinder type concrete crushed stone composite filling pile.

Background technology

After building structure such as house, speedway on the natural soft soil foundation, can cause the vertical sedimentation of bigger ground usually, this must carry out consolidation process to soft foundation with the safety own and the result of use of serious harm structure.The method that ground is handled mainly contains three types.The first kind is to reduce sedimentation, promptly weak soil is carried out replacement Treatment, replaces natural weak soil with harder soil or constructional materials, like grey local method, cement local method, concrete pile method.Second type is to quicken sedimentation, promptly before building structure, makes the sedimentation of soft foundation fulfil a part ahead of schedule through the engineering means or its settling rate is accelerated, and fast and stable is like preloading, vacuum method.The 3rd type between between the first kind and second type, has simultaneously and reduce sedimentation and the effect of quickening sedimentation, and like the broken stone pile method, rubble is harder than weak soil, simultaneously again for the discharge of soft water in soil provides passage, and the consolidation settlement of acceleration foundation soil.The 3rd class methods have preceding two types advantage, have received the favor of engineering circle, but the settling amount of its minimizing is limited and usually producing bigger lateral deformation near place, the face of land, influence the monolithic stability of superstructure.

The utility model content

The purpose of the utility model is to provide a kind of cylinder type concrete crushed stone composite filling pile; The cylinder type concrete crushed stone composite filling pile of the utility model reduces even has eliminated the bigger defective of traditional broken stone pile lateral deformation, and can effectively control the vertical sedimentation of soft foundation and guarantee the safe operation and the use of superstructure.

In order to achieve the above object, the technical scheme of the utility model is:

A kind of cylinder type concrete crushed stone composite filling pile, described composite filling pile comprise stake core that is formed by cylindrical concrete spouting and the rubble pile protection that is cast in the stake core; And the stake core is cast in the rubble pile protection, forms the compound pile body of cylinder type; Described stake in-core has set up reinforcing cage.The rubble pile protection of the utility model can adopt rubble, also can adopt coarse sand, and the compound of rubble and coarse sand, can certainly adopt the mixture with identical characteristics.

Described length of reinforcing cage is identical with stake core length, and perhaps length of reinforcing cage is shorter than a core length, or reinforcement placing cage not.

The beneficial effect of the utility model is: the utility model stake core adopts the concrete pile body to have and carries and the limit lateral metamorphosis, and outside broken stone pile cover has carrying and drainage, and twice immersed tube has compacted effect to foundation soil.The utility model makes full use of concrete and rubble engineering property separately; Form the concrete crushed stone composite filling pile; Have that core is reinforced and constraint lateral deformation, outside pile protection draining, three kinds of treatment effects such as basic unit is compacted on every side; Reduce even eliminated the bigger defective of traditional broken stone pile lateral deformation, and can effectively control the vertical sedimentation of soft foundation and guarantee the safe operation and the use of superstructure.

Description of drawings

Fig. 1 is the decomposing schematic representation of the utility model composite filling pile whole construction course.

Sketch map when wherein to be the first concrete pile crown together with the location steel sleeve begin to squeeze into ground like a figure among Fig. 1; Sketch map when to be the first concrete pile crown together with the location steel sleeve squeeze into ground fully like b figure among Fig. 1; Like c figure among Fig. 1 is the sketch map when in the steel sleeve of location, pouring into rubble; Like d figure among Fig. 1 is that the sketch map of location during steel sleeve extracted in vibration; Like e figure among Fig. 1 is the sketch map of the second concrete pile crown when squeezing into ground once more together with steel sleeve; Like f figure among Fig. 1 is the sketch map when placing reinforcing cage; Like g figure among Fig. 1 is sketch map when fluid concrete forms the stake core in the steel sleeve; Sketch map when scheming to accomplish the compound pile body of formation cylinder type like h among Fig. 1.

The specific embodiment

Embodiment 1

As shown in Figure 1; Fig. 1 is the decomposing schematic representation of whole construction course of a kind of cylinder type concrete crushed stone composite filling pile of present embodiment, and described composite filling pile comprises stake core 1 that is formed by cylindrical concrete spouting and the rubble pile protection 2 that is cast in stake core 1; (the rubble pile protection of the utility model can adopt rubble, also can adopt coarse sand, and the compound of rubble and coarse sand, can certainly adopt the mixture with identical characteristics.) and a stake core 1 be cast in rubble pile protection 2, form the compound pile body of cylinder type; Described stake core 1 internal frame is provided with reinforcing cage 3.The construction technology of the cylinder type concrete crushed stone composite filling pile of present embodiment; Pour into rubble (shown in c among Fig. 1) after comprising the steps: at first the first concrete pile crown 5 together to be squeezed into ground 7 (shown in b among Fig. 1) together with location steel sleeve 4 (shown in a among Fig. 1); Compacted foundation soil on every side simultaneously, location steel sleeve 4 (shown in d among Fig. 1) is extracted in vibration then; The second concrete pile crown 6 is squeezed into (shown in e among Fig. 1) on the original position rubble once more together with steel sleeve 1, and steel sleeve 1 is all squeezed in the ground 7, and steel sleeve 1 is extruded into annular rubble pile protection 2 with rubble, and is compacted foundation soil on every side once more simultaneously; Then in steel sleeve 1, place reinforcing cage 3 (shown in f among Fig. 1); And fluid concrete forms stake core 1 in steel sleeve 1; Pull out steel sleeve 1 (shown in g among Fig. 1) while pouring into a mould, up to extracting steel sleeve 1 fully, at this moment; Stake core 1 and be cast in rubble pile protection 2 forms the compound pile body of cylinder type (shown in h among Fig. 1); Partly construct accomplishing pile body behind its maintenance to the design age then.Reinforcing cage 3 length of present embodiment are identical with stake core 1 length, i.e. this pile body total length configuration reinforcement cage.This design length L=15.0m; Stake core 1 diameter d=0.4m mainly plays and reinforces and control lateral deformation effect; Rubble pile protection 2 D outer diameter are about 0.5m, mainly play drainage; Twice immersed tube makes the ground 7 around the stake produce the compacted district of the soil body that diameter is about 1.0-2.0m.This stake has that inner core is reinforced and constraint lateral deformation, outside draining, three kinds of treatment effects such as compacted on every side, can effectively control the vertical sedimentation of soft foundation and guarantee the safe operation and the use of superstructure.

Embodiment 2

As shown in Figure 1; Fig. 1 is the decomposing schematic representation of whole construction course of a kind of cylinder type concrete crushed stone composite filling pile of present embodiment, and described composite filling pile comprises stake core 1 that is formed by cylindrical concrete spouting and the rubble pile protection 2 that is cast in stake core 1; (the rubble pile protection of the utility model can adopt rubble, also can adopt coarse sand, and the compound of rubble and coarse sand, can certainly adopt the mixture with identical characteristics.) and a stake core 1 be cast in rubble pile protection 2, form the compound pile body of cylinder type; Described stake core 1 internal frame is provided with reinforcing cage 3.The construction technology of the cylinder type concrete crushed stone composite filling pile of present embodiment; Pour into rubble (shown in c among Fig. 1) after comprising the steps: at first the first concrete pile crown 5 together to be squeezed into ground 7 (shown in b among Fig. 1) together with location steel sleeve 4 (shown in a among Fig. 1); Compacted foundation soil on every side simultaneously, location steel sleeve 4 (shown in d among Fig. 1) is extracted in vibration then; The second concrete pile crown 6 is squeezed into (shown in e among Fig. 1) on the original position rubble once more together with steel sleeve 1, and steel sleeve 1 is all squeezed in the ground 7, and steel sleeve 1 is extruded into annular rubble pile protection 2 with rubble, and is compacted foundation soil on every side once more simultaneously; Then in steel sleeve 1, place reinforcing cage 3 (shown in f among Fig. 1); And fluid concrete forms stake core 1 in steel sleeve 1; Pull out steel sleeve 1 (shown in g among Fig. 1) while pouring into a mould, up to extracting steel sleeve 1 fully, at this moment; Stake core 1 and be cast in rubble pile protection 2 forms the compound pile body of cylinder type (shown in h among Fig. 1); Partly construct accomplishing pile body behind its maintenance to the design age then.This design length L=10.0m; Stake core 1 diameter d=0.6m mainly plays and reinforces and control lateral deformation effect; Rubble pile protection 2 D outer diameter are about 0.8m, mainly play drainage; Twice immersed tube makes the ground 7 around the stake produce the compacted district of the soil body that diameter is about 1.5-3.0m.Because inner core concrete pile body is thicker and actual upper load is less, this stake is not disposed reinforcing cage 3 or is needed only local configuration reinforcing cage 3 (as long as leaning on upper part local configuration reinforcing cage 3 at pile body).This stake has equally that inner core is reinforced and constraint lateral deformation, outside draining, three kinds of treatment effects such as compacted on every side, can effectively control the vertical sedimentation of soft foundation and guarantee the safe operation and the use of superstructure.

Claims

1. cylinder type concrete crushed stone composite filling pile is characterized in that: described composite filling pile comprises stake core (1) that is formed by cylindrical concrete spouting and the rubble pile protection (2) that is cast in stake core (1); And stake core (1) is cast in rubble pile protection (2), forms the compound pile body of cylinder type; Described stake core (1) internal frame is provided with reinforcing cage (3).

2. a kind of cylinder type concrete crushed stone composite filling pile as claimed in claim 1; It is characterized in that: described reinforcing cage (3) length is identical with stake core (1) length; Perhaps reinforcing cage (3) is shorter in length than a core (1) length, or reinforcement placing cage (3) not.