CN204662425U

CN204662425U - Polygonal cement mixing method

Info

Publication number: CN204662425U
Application number: CN201520262478.1U
Authority: CN
Inventors: 周兆弟
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-29
Filing date: 2015-04-27
Publication date: 2015-09-23
Anticipated expiration: 2025-04-27
Also published as: CN104863131A; CN104196016A

Abstract

The utility model belongs to technical field of buildings, relates to a kind of Triangular Flos Mume shape cement mixing method.Solve the technical problem of prior art uplift resistance difference and pile strength difference.It comprises by cement and the concretionary pile body of earth, and described pile body forms by the pile body of three distributions triangular in shape is bonded to each other.The utility model pile foundation good stability, intensity is high, uplift resistance and anti-bearing capacity strong.

Description

Polygonal cement mixing method

Technical field

The utility model belongs to technical field of buildings, relates to a kind of cement mixing method, particularly relates to a kind of polygonal cement mixing method.

Background technology

Cement mixing method is a kind of method for reinforcing the low ground of saturated soft clay, it utilizes cement as curing compound, by special Mixing Machine, in ground depths by weak soil and curing compound action of forced stirring, utilize the series of physical chemical reaction produced between curing compound and weak soil, weak soil is hardened into have the high-quality ground of globality, water stability and some strength.But existing cement mixing method is all single-column stake, when the higher uplift resistance of needs and compressive resistance, need the aperture of boring to do large thus make the boring post of larger aperture.

The manufacturing process of existing cement mixing method comprises the following steps:

1, position of p ile machine, centering, leveling.After putting agitation pile stake position well, mobile mixing pile machine arrives and refers to fixed pile, centering, leveling level gauge leveling.

2, leading truck verticality is adjusted.Adopt transit or ceiling hammer double-direction control leading truck verticality.By design and code requirement, verticality be less than 1.0% long.

3, mixing slurries in advance.Deep mixer stirs simultaneously in advance, and slurries are put into aggregate bin before treating mud jacking by backstage mixing cement grout.Select cement grade 425# common silicate cement mixing slurries, water/binder ratio controls in 0.45 ~ 0.50 scope, is no less than 50Kg according to designing requirement every meter deep-mixed pile cement consumption.

4, stir.Start deep-mixing pile driver rotating disk, after head rotating speed to be mixed is normal, drilling rod can be made to stir along sinking limit, leading truck limit, and subsidence velocity regulates and controls by gear, and operating current should not be greater than rated value.

5, whitewashing is stirred and is promoted.After sinking to arriving projected depth, open mortar pump, send slurry to stirring-head grout outlet by pipeline, after pulp, start mixing pile machine and tensioning chain device, stir limit lifting drilling rod by designing the hoisting velocity 0.50 ~ 0.8m/min limit whitewashing determined, slurries and the soil body are are fully mixed and stirred.

6, repeat to stir.Stirring drill bit is promoted to after stake pushes up above 500mm height, and close mortar pump, repeat stirring and sink down into projected depth, subsidence velocity is undertaken by designing requirement.

7, whitewashing repeats to stir and promotes.After sinking to arriving projected depth, whitewashing repeats to stir and promotes, and is promoted to ground always.

8, stake machine displacement.Constructed after a pile, mobile stake machine, to next pile position, repeats the construction that above step carries out next pile.

As can be seen here, the construction method of existing cement mixing method is single making, and every pile is all cylindrical.

Deficiency is sent out in order to overcome prior art, people are through constantly exploring, propose various solution, as Chinese patent literature discloses a kind of one-tenth pile operation method [notification number: CN102943467A] of bidirectional stirring pile, cement mixing method is stirred by soil and cement paste and is formed, one width stirs wall and is made up of the cement mixing method of many vertical overlap joints mutually, several Soil-cement Walls overlap the longer Soil-cement Wall of formation mutually, every width Soil-cement Wall is made up of the cement mixing method that the six roots of sensation is vertical, the six roots of sensation cement mixing method same time is formed, six roots of sensation cement mixing method is on same vertical plane, adjacent pile body overlaps mutually, adjacent Soil-cement Wall overlaps mutually.

Such scheme can once be constructed six roots of sensation cement mixing method simultaneously, decrease the multiple tracks seam of former single shaft or the formation of two axle cement mixing methods, improve efficiency of construction, decrease the amount of labour used, compensate for the defects such as three axes agitating pile displacement soil is many, water/binder ratio is large, cement mixing content is large, shorten the construction period more than 2/3rds.But as described in the program, six roots of sensation cement mixing method is on same vertical plane, and therefore agitation pile linearly distributes thus forms the cement mixing method of planar shaped, the uplift resistance of this cement mixing method, intensity need to be improved further.

Utility model content

The purpose of this utility model is for the problems referred to above, provides that a kind of pile strength is high, uplift resistance much higher angle cement mixing method.

For achieving the above object, the utility model have employed following technical proposal: a kind of polygonal cement mixing method, comprise by cement and the concretionary pile body of earth, described pile body is made up of some pile bodies bonded to each other, and the cross section of described pile body has the angle of multiple circular arc, the quantity of described pile body is not less than the quantity at angle, and the axial line of some pile bodies is not at grade and be parallel to each other.

In above-mentioned polygonal cement mixing method, the cross section of each independently pile body is circular, and each pile body of composition pile body has lap with at least two other pile body respectively.

In above-mentioned polygonal cement mixing method, in described pile body, be also provided with at least one preformed pile.

In above-mentioned polygonal cement mixing method, the axial line of described preformed pile and the axis parallel of pile body, the shape of preformed pile cross section is square, polygon or circle.

In above-mentioned polygonal cement mixing method, described preformed pile is non-uniform pile or not non-uniform pile.

In above-mentioned polygonal cement mixing method, described pile body is formed by stacking by least two campshed bodies, and the axial line of described every campshed body at grade.

In above-mentioned polygonal cement mixing method, the T-shaped or L shape of described pile body or cross.

In above-mentioned polygonal cement mixing method, described pile body has the expansion section of at least one outstanding pile body.

In above-mentioned polygonal cement mixing method, described expansion section has several, and distance between every two expansion sections is equal or unequal.

In above-mentioned polygonal cement mixing method, described expansion section is formed by connecting by the pile body protuberance at several outstanding each angles, and the quantity of pile body protuberance is identical with the quantity at angle.

Compared with prior art, the utility model has the advantage of: because the loaded area of pile foundation is large, bearing support point is polygonal distribution, the thus good stability of pile foundation, ensure that cement earth pile does not tilt in soft foundation simultaneously, stands vertically; Have employed the pile body of many non-linear configuration, serve the effect of the contact area increasing pile body and ground, improve uplift resistance and anti-bearing capacity; Expansion section is suitable in the good soil layer of soil property, improves uplift resistance and anti-bearing capacity further.

Accompanying drawing explanation

Fig. 1 is the structural representation that the utility model provides;

Fig. 2 is the another kind of structural representation that the utility model provides;

Fig. 3 is the cross sectional representation of the pile body that the utility model provides;

Fig. 4 is the cross sectional representation of the another kind of pile body that the utility model provides;

Fig. 5 is the cross sectional representation of the another kind of pile body that the utility model provides;

Fig. 6 is the cross sectional representation of the another kind of pile body that the utility model provides;

Fig. 7 is the cross sectional representation of the another kind of pile body that the utility model provides.

In figure: pile body 10, angle 11, pile body 20, preformed pile 30, expansion section 40, pile body protuberance 41.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.

As shown in Figure 1, a kind of polygonal cement mixing method, comprise by cement and the concretionary pile body 10 of earth, described pile body 10 is made up of some pile bodies 20 bonded to each other, and the cross section of described pile body 10 has the angle 11 of multiple circular arc, and the quantity of described pile body 20 is not less than the quantity at angle 11, that is, when pile body 20 be positioned at pile body 10 inner time, this pile body 20 does not present angle 11, and the axial line of some pile bodies 20 is not at grade and be parallel to each other.

The cross section of each independently pile body 20 is circular, and the radius of pile body 20 can be equal or unequal, and each pile body 20 of composition pile body 10 has lap with at least two other pile body 20 respectively, and the area of lap can be equal or unequal.

As shown in Figure 2, be also provided with at least one preformed pile 30 in pile body 10, preformed pile 30 can adopt concrete to add reinforcing bar and make, and object is the intensity in order to improve agitation pile, and obvious preformed pile 30 is inner at pile body 10, can be one and also can be many.The axial line of preformed pile 30 and the axis parallel of pile body 10, the shape of preformed pile 30 cross section is square, polygon, circle or other shapes.Preformed pile 30 is non-uniform pile or not non-uniform pile, and variable cross-section described here refers to that the shape of the cross section at diverse location of same pile or size are different.

Pile body 10 has the expansion section 40 of at least one outstanding pile body 10, expansion section 40 is for improving uplift resistance and bearing capacity.Expansion section 40 has several, and distance between every two expansion sections 40 is equal or unequal.Expansion section 40 is formed by connecting by the pile body protuberance 41 at several outstanding each angles 11, and the quantity of pile body protuberance 41 is identical with the quantity at angle 11.

The varying cross-section shape of Fig. 3-Figure 7 shows that pile body 10, pile body 10 can be random arrangement, also can be well-regulated arrangement, as shown in Figure 3 quincunx, preferred version, as shown in Figure 4, pile body 10 is formed by stacking by least two campshed bodies 20, and the axial line of described every campshed body 20 at grade.As shown in Figure 5-Figure 7, pile body 10 L-shaped, T-shaped, cross respectively.In same pile body 10, preformed pile 30 can have many, and the shape of many preformed piles 30 can be the same, also can be different.

Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.

Although more employ the terms such as pile body 10, angle 11, pile body 20, preformed pile 30, expansion section 40, pile body protuberance 41 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.

Claims

1. a polygonal cement mixing method, comprise by cement and the concretionary pile body of earth (10), it is characterized in that, described pile body (10) is made up of some pile bodies (20) bonded to each other, and the cross section of described pile body (10) has the angle (11) of multiple circular arc, the quantity of described pile body (20) is not less than the quantity of angle (11), and the axial line of some pile bodies (20) is not at grade and be parallel to each other, and is also provided with at least one preformed pile (30) in described pile body (10).

2. polygonal cement mixing method according to claim 1, it is characterized in that, the cross section of each independently pile body (20) is circular, and each pile body (20) of composition pile body (10) has lap with at least two other pile body (20) respectively.

3. polygonal cement mixing method according to claim 1 and 2, it is characterized in that, the axial line of described preformed pile (30) and the axis parallel of pile body (10), the shape of preformed pile (30) cross section is polygon or circle.

4. polygonal cement mixing method according to claim 1 and 2, is characterized in that, described preformed pile (30) is non-uniform pile or not non-uniform pile.

5. polygonal cement mixing method according to claim 1 and 2, it is characterized in that, described pile body (10) is formed by stacking by least two campshed bodies (20), and the axial line of described every campshed body (20) at grade.

6. polygonal cement mixing method according to claim 5, is characterized in that, the T-shaped or L shape of described pile body (10) or cross.

7. polygonal cement mixing method according to claim 1 and 2, is characterized in that, described pile body (10) has the expansion section (40) of at least one outstanding pile body (10).

8. polygonal cement mixing method according to claim 7, is characterized in that, described expansion section (40) has several, and distance between every two expansion sections (40) is equal or unequal.

9. polygonal cement mixing method according to claim 7, it is characterized in that, described expansion section (40) is formed by connecting by the pile body protuberance (41) at several outstanding each angles (11), and the quantity of pile body protuberance (41) is identical with the quantity of angle (11).