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Three-axis mixing pile structure in water-rich thick sand hard stratum and construction process thereof

A technology with rich water, thick sand, and construction technology, which is applied in the direction of foundation structure engineering, sheet pile walls, drilling equipment, etc., can solve the problems of auger drill pipe breakage, poor stability of auger drill pipe, uneven force, etc., and improve the convenience of use performance, improve connection stability, and improve the effect of using stability

Active Publication Date: 2021-04-27
北京东地岩土工程有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that when the auger rod is used to drill holes on the slope surface, the soil layer with different hardness exerts uneven force on the circumferential surface of the auger rod, which causes the auger rod to break, and the auger rod less stable

Method used

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  • Three-axis mixing pile structure in water-rich thick sand hard stratum and construction process thereof
  • Three-axis mixing pile structure in water-rich thick sand hard stratum and construction process thereof
  • Three-axis mixing pile structure in water-rich thick sand hard stratum and construction process thereof

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Embodiment Construction

[0040] The following is attached Figure 1-3 The application is described in further detail.

[0041] The embodiment of the present application discloses a structure of a three-axis stirring pile in a water-rich thick-sand hard stratum. refer to figure 1 A three-axis mixing pile structure in a water-rich thick sand hard formation includes a body 1, a slope 2 is arranged on one side of the body 1, and three auger rods 11 are arranged on the body 1 for rotation, and the auger rods 11 are arranged perpendicular to the surface of the slope 2, One side of the body 1 is provided with a guide assembly 3, the guide assembly 3 includes a guide frame 31, the guide frame 31 is provided with a guide rail 32, and the guide rail 32 abuts against the circumferential surface of the auger rod 11, reducing the risk of the auger rod 11 being broken. probability, thereby improving the use stability of the auger rod 11.

[0042] refer to figure 2 , the guide rail 32 is arranged above the guid...

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Abstract

The invention relates to a three-axis mixing pile structure in a water-rich thick sand hard stratum and a construction process thereof, and belongs to the field of foundation pit waterproofness. The three-axis mixing pile structure comprises a machine body, a slope is arranged on one side of the machine body, three spiral drilling rods are rotatably arranged on the machine body, and the spiral drilling rods are perpendicular to the surface of the slope; one side of the machine body is provided with a guide assembly, the guide assembly comprises a guide frame, a guide rail is rotationally arranged on the guide frame and abuts against the circumferential faces of the spiral drilling rods, and the spiral drilling rods are in sliding connection with the guide rail. According to the structure, the effect of improving the stability of the spiral drilling rods is achieved.

Description

technical field [0001] The present application relates to the field of waterproofing of foundation pits, in particular to a structure of a three-axis stirring pile in a water-rich thick sand hard stratum and a construction process thereof. Background technique [0002] The three-axis mixing pile is a kind of long screw pile machine. It has three auger drill rods at the same time. During construction, the three auger drill rods are simultaneously constructed downwards. It is an effective form of soft foundation treatment. Spray into the soil and stir fully to make a series of physical and chemical reactions between the cement and the soil, harden the soft soil and improve the strength of the foundation. [0003] In the prior art, when it is necessary to perforate and grout an inclined slope in order to build a water-proof curtain, it is first necessary to extend the auger rod perpendicular to the extension direction of the slope surface, and then start the auger rod to drill ...

Claims

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Application Information

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IPC IPC(8): E02D5/46E21B17/22
CPCE02D5/46E21B17/22
Inventor 赵建军
Owner 北京东地岩土工程有限公司
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