CN204662426U

CN204662426U - Cement mixing method

Info

Publication number: CN204662426U
Application number: CN201520266190.1U
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: CN104863132A; CN104032734A

Abstract

The utility model belongs to technical field of buildings, relates to a kind of 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

Cement mixing method

Technical field

The utility model belongs to technical field of buildings, relates to the shaping stake of a kind of stirring, particularly relates to a kind of 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 (using 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 hoisting velocity (0.50 ~ 0.8m/min) the 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 the cement mixing method that a kind of pile strength is high, uplift resistance is high.

For achieving the above object, the utility model have employed following technical proposal: a kind of cement mixing method, and comprise by cement and the concretionary pile body of earth, described pile body forms by the pile body of three distributions triangular in shape is bonded to each other.

In above-mentioned cement mixing method, the cross section of described pile body is circular, and wherein every pile body and other two pile bodies overlap, and the center of circle distribution triangular in shape of the cross section of three pile bodies.

In above-mentioned cement mixing method, the cross sectional area of every pile body is identical or not identical.

In above-mentioned cement mixing method, wherein a pile body is equal or unequal with the cross sectional area of other two pile body laps.

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

In above-mentioned cement mixing method, described pile body is provided with the expansion section that at least one protrudes pile body outer wall.

In above-mentioned cement mixing method, described expansion section is interconnected by the pile body protuberance that three protrude each pile body outer wall respectively and forms.

In above-mentioned cement mixing method, described expansion section is along the axially-aligned of pile body.

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

Compared with prior art, the utility model has the advantage of: because the loaded area of pile foundation is large, the distribution triangular in shape of bearing support point, the thus good stability of pile foundation, ensure that cement earth pile does not tilt in soft foundation simultaneously, stand 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 another kind of structural representation that the utility model provides

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

In figure: pile body 10, pile body 11, preformed pile 20, expansion section 30, pile body protuberance 31.

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 cement mixing method, comprise by cement and the concretionary pile body 10 of earth, described pile body 10 forms by the pile body 11 of three distributions triangular in shape is bonded to each other, three pile bodies 11 rear formation petal-shaped structure bonded to each other, especially as Triangular Flos Mume shape.When pile body 11 is not bonded to each other, the cross section of each pile body 11 is circular, the cross sectional area of every pile body 11 is identical or not identical, wherein every pile body 11 overlaps with other two pile bodies 11, wherein a pile body 11 is equal or unequal with the cross sectional area of other two pile body 11 laps, and the center of circle distribution triangular in shape of the cross section of three pile bodies 11.

Again shown in composition graphs 2 and Fig. 3, in order to improve the intensity of pile body 10, also be provided with at least one preformed pile 20 in pile body 10, the axial line of preformed pile 20 and the axis parallel of pile body 10, the shape of preformed pile 20 cross section is square, polygon, circle or other shapes.Preformed pile 20 is non-uniform pile or not non-uniform pile, here so-called not non-uniform pile refers to the shape of cross section at any position of preformed pile 20, size is identical, and so-called non-uniform pile refers to that preformed pile 20 has two local shape of cross sections at least or varies in size.When being provided with many preformed piles 20 in pile body 10, preformed pile 20 can identical also can not be identical, as shown in Figure 4, there are in pile body 10 many preformed piles 20 and have circular stake and square pile, preferred version, should insert a preformed pile 20 in each pile body 11, thus improves the intensity of pile body 10.

As shown in Figure 3, pile body 10 is provided with the expansion section 30 that at least one protrudes pile body 10 outer wall.When expansion section 30 has multiple, expansion section 30 along the axially-aligned of pile body 10, the spacing between two expansion sections 30 can equal also can be unequal.Each expansion section 30 is interconnected by the pile body protuberance 31 that three protrude each pile body 11 outer wall respectively and forms, that is each pile body protuberance 31 radially outward giving prominence to independently along one of them pile body 11 separately.

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, pile body 11, reinforcing cage 20, expansion section 30, pile body protuberance 31 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 cement mixing method, comprise by cement and the concretionary pile body of earth (10), it is characterized in that, described pile body (10) forms by the pile body (11) of three distributions triangular in shape is bonded to each other, is also provided with at least one preformed pile (20) in described pile body (10).

2. cement mixing method according to claim 1, it is characterized in that, the cross section of described pile body (11) is circular, wherein every pile body (11) overlaps with other two pile bodies (11), and the center of circle distribution triangular in shape of the cross section of three pile bodies (11).

3. cement mixing method according to claim 1 and 2, is characterized in that, the cross sectional area of every pile body (11) is identical or not identical.

4. cement mixing method according to claim 2, is characterized in that, wherein a pile body (11) is equal or unequal with the cross sectional area of other two pile body (11) laps.

5. cement mixing method according to claim 1 and 2, is characterized in that, described pile body (10) is provided with the expansion section (30) that at least one protrudes pile body (10) outer wall.

6. cement mixing method according to claim 5, is characterized in that, described expansion section (30) is interconnected by the pile body protuberance (31) that three protrude each pile body (11) outer wall respectively and forms.

7. cement mixing method according to claim 5, is characterized in that, described expansion section (30) is along the axially-aligned of pile body (10).

8. cement mixing method according to claim 1 and 2, it is characterized in that, the axial line of described preformed pile (20) and the axis parallel of pile body (10), the shape of preformed pile (20) cross section is polygon or circle.

9. cement mixing method according to claim 1 and 2, is characterized in that, described preformed pile (20) is non-uniform pile or not non-uniform pile.