Drive box structure of cement-soil mixing pile driver
A technology of cement-soil mixing and pile driving machine, which is applied in foundation structure engineering, driving device for drilling in boreholes, sheet pile walls, etc., and can solve the problems of poor pull-out resistance, poor stability, and uneven mixing of cement-soil mixing piles, etc. problem, to achieve the effect of less drilling difficulty, strong pull-out resistance, and improved uniformity
Active Publication Date: 2017-02-01
周兆弟
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Problems solved by technology
The above scheme solves the problem that a single drive box of the existing cement-soil mixing pile machine can only install a single drill pipe to a certain extent, but this scheme still exists: the mixing is not uniform enough, the cement-soil mixing pile has poor pull-out resistance and poor stability. question
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[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0021] Such as Figure 1-4 As shown, the drive box structure of the cement-soil mixing pile driver includes a drive box 1 with an inner cavity, and the drive box 1 is provided with at least one main drill rod hole 2 that runs through the drive box 1 in the vertical direction. The main drill rod hole 2 is provided with at least two auxiliary drill rod holes 3 and at least one drive shaft hole 4 vertically penetrating through the drive box 1 on the outer side of the main drill rod hole 2. The auxiliary drill rod hole 3 is centered on the center of the main drill rod hole 2. The center of the circle is arranged in a circular distribution, and the center of the main drill pipe hole 2 is connected to the centers of any two auxiliary drill pipe holes 3 that are not on the same straight line as the center of the main drill pipe hole 2 to for...
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The invention relates to a driving box structure of a cement-soil mixing pile driver. The driving box structure solves the problem of uneven mixing existing when a conventional cement-soil mixing pile driver is used for drilling holes. The driving box structure comprises a driving box body with a cavity, wherein at least one main drilling rod hole is formed in the driving box body; at least two auxiliary drilling rod holes and at least one driving axle hole are formed at the outer side of the circumferential direction of the main drilling rod hole; the auxiliary drilling rod holes are annularly distributed by taking the center of the main drilling rod hole as the center of a circle; and the center of the main drilling rod hole is sequentially connected to the centers, which are not on the same straight line with the center of the main drilling rod hole, of any two auxiliary drilling rod holes to form a triangular structure. The driving box structure has the advantages that drilling rods are good in installation stability; a plurality of drilling rods can be arranged on the single driving box body, and the mixing is even; and the same-direction rotation and reverse-direction rotation of the main drilling rod and the auxiliary drilling rods can be realized by the single driver, thereby improving the evenness of mixing and the anti-pulling capacity of a cement-soil mixing pile and enlarging the perimeter of the cross section of the cement-soil mixing pile after construction.
Description
technical field [0001] The invention belongs to the technical field of construction equipment, and in particular relates to a driving box structure of a cement-soil mixing pile driver. Background technique [0002] The cement-soil mixing pile is a method for reinforcing the low foundation of saturated soft clay. It uses cement as the curing agent, and through a special mixing machine, the soft soil and the curing agent are forced to mix deep in the foundation. A series of physical and chemical reactions between them make the soft soil harden into a high-quality foundation with integrity, water stability and certain strength. Common pile drivers for cement-soil mixing piles are mostly two-axis mixing piles, which are formed by the intersection of two equal-diameter cylinders. For two-axis cement-soil mixing piles, in order to improve the water-stop effect, it is necessary to construct around the foundation pit Two rows of cement-soil mixing piles, after the first row of pile...
Claims
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IPC IPC(8): E02D5/46E21B4/16
Inventor 周兆弟
Owner 周兆弟