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 const

Method used

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

Examples

Experimental program
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Example Embodiment

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

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

Example Embodiment

[0032] Example 2, see Figure 4 , The row spacing H between the two rows of drill pipes is increased, d>H / 2, and the 6 drill pipes rotate simultaneously to form 2 rows of cement-soil mixing piles that do not overlap each other. See the pile plan Figure 5a , Figure 5b , It can be piled into two rows and three mixing piles in each row at a time, and each row of mixing piles overlaps or hits each other, but the rows do not overlap each other. The rest is the same as in Example 1.

[0033] When the present invention can be changed to double-row four-axis pile mixer per row, double-row five-axis pile mixer per row, etc.; the corresponding drill pipe drainage can also be modified, such as three-row, four-row, five-row drills, etc. . Multiple rows of cement-soil mixing piles are formed at the same time, reducing the cold joints of overlap.

[0034] The multi-row and multi-axis cement-soil mixing pile drilling rig of the present invention can construct multiple rows of cement-soil mix...

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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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