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Multi-row and multi-shaft cemented soil mixing pile drilling machine

A technology of cement-soil mixing piles and mixing piles, applied in the direction of earth cube drilling, drill pipes, drill pipes, etc., can solve the problems of long time consumption and slow construction speed, reduce lap cold joints, improve construction quality, and reduce labor cost effect

Inactive Publication Date: 2014-11-19
SHANGHAI STRONG FOUND ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the ordinary cement-soil mixing pile drilling rig, after the first row of piles has been driven, the pile driver needs to be moved, and then the second row of cement-soil mixing piles should be constructed at the position of the second row of piles. The construction speed of the ordinary drilling rig is slow. , it takes a long time, and there is an overlapping cold joint between the two rows of piles

Method used

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  • Multi-row and multi-shaft cemented soil mixing pile drilling machine

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Embodiment 1

[0025] Example 1, see figure 1 and figure 2 , the present embodiment is 2 rows of double-row agitating pile machines with three shafts in each row. The three drill rods in each row and the mixing heads are arranged in a line by overlapping, and a power box 5 is arranged above the three drill rods in 2 rows. The power box A driving motor is arranged inside. The output shaft of the motor is connected with a reducer, and the reducer is connected with the drill pipe. In this way, the rotating speed of the drill rod can be controlled, and the required rotating speed requirement has been reached without damaging the motor.

[0026] The first row of drill rods from left to right is the first drill rod 11, the second drill rod 12, and the third drill rod 13, and the three drill rods are arranged in a row; the second row of drill rods is the first drill rod from left to right. One drill rod 21, the second drill rod 22, the third drill rod 23, three drill rods are arranged in a row....

Embodiment 2

[0032] Example 2, see Figure 4 , increase the row spacing H between the two rows of drill pipes, d>H / 2, and 6 drill pipes rotate simultaneously to form 2 rows of cement-soil mixing piles that do not overlap each other. For pile plan, see Figure 5a , Figure 5b , Two rows of three mixing piles in each row can be piled at one time, and each row of mixing piles is overlapped or sleeved, but the rows are not overlapped with each other. All the other are with embodiment 1.

[0033] According to the actual situation, the present invention can be changed into a double-row four-axis mixing pile machine, a double-row five-axis mixing pile machine, etc.; the corresponding drill pipe drainage can also be changed, such as three-row, four-row, five-row drilling rigs, etc. . Multiple rows of cement-soil mixing piles are formed at the same time, which reduces the overlap cold joints.

[0034] The multi-row multi-axis cement-soil mixing pile drilling rig of the present invention can co...

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Abstract

The invention provides a multi-row and multi-shaft cemented soil mixing pile drilling machine. Mixing pile machine drilling rods are distributed in a multi-row mode, n drilling rods are distributed in each row, cemented soil mixing piles of many rows can be constructed at a time, cold joints of lap joint are reduced, the labor cost is greatly reduced, the construction period is shortened, the construction quality is improved, and the construction cost is lowered.

Description

technical field [0001] The invention relates to cement-soil mixing pile construction equipment for strengthening and supporting weak soil in geotechnical engineering, in particular to a multi-row multi-axis cement-soil mixing pile drilling rig in the field of improving soil strength and foundation pit support and water and soil retaining. Background technique [0002] When strengthening the weak soil layer and supporting the foundation pit, the method of mixing cement slurry and soil is often used to form a cement-soil mixing pile, and multiple cement-soil mixing piles are connected in rows to form a cement-soil mixing wall, thereby The strength and watertightness of the weak foundation are greatly improved. [0003] However, in some cases, in order to improve the water-stop effect, it is necessary to construct two rows of cement-soil mixing piles around the foundation pit. Using ordinary cement-soil mixing pile drilling rig, after driving the first row of piles, it is nece...

Claims

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Application Information

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IPC IPC(8): E02D5/46E21B17/00E21B17/18
Inventor 陈伟宏毕平均范君宇刘全林宋雪清宋伟民
Owner SHANGHAI STRONG FOUND ENG
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