Drill rod for cement mixing pile

A technology of cement mixing piles and drill pipes, which is applied in the direction of drill bits, sheet pile walls, drilling equipment, etc., can solve the problems of poor versatility, achieve the effects of improving uniformity, improving versatility, and ensuring construction effects

Pending Publication Date: 2021-10-22
无锡市政建设集团有限公司
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AI Technical Summary

Problems solved by technology

[0004] During use, the three drill pipes can be drilled at the same time, alternately drilled according to geological conditions, or alternately and staggered in sequence. However, since the overall diameters of the three drill pipes are the same, they are only suitable for equal-diameter piles. Can not be used with expanded bottom piles, poor versatility

Method used

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  • Drill rod for cement mixing pile
  • Drill rod for cement mixing pile
  • Drill rod for cement mixing pile

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Embodiment Construction

[0035] The following is attached Figure 1-5 The application is described in further detail.

[0036] The embodiment of the application discloses a drill pipe for a cement mixing pile. refer to figure 1 and figure 2 The drill pipe for cement mixing piles includes a vertically arranged drill pipe body 1, and a grouting channel 101 is vertically opened on the drill pipe body 1, and the grouting channel 101 runs through the drill pipe body 1, and the center line of the drill pipe body 1 and The centerlines of the grouting channels 101 are collinear.

[0037] refer to figure 1 The outer wall of the drill pipe body 1 is connected with equal-diameter stirring blades 2 , and several equal-diameter stirring blades 2 are arranged along the axial direction of the drill pipe body 1 . The equal-diameter stirring blade 2 includes a mounting sleeve 201 and a blade body 202 , and the mounting sleeve 201 is sleeved on the drill pipe body 1 .

[0038] refer to figure 1 , the mounting s...

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PUM

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Abstract

The invention relates to the field of cement mixing pile drill rods, in particular to a drill rod for a cement mixing pile. The drill rod comprises a drill rod body and a plurality of equal-diameter mixing blades connected to the drill rod body, a diameter changing mechanism is formed at the bottom of the drill rod body, the diameter changing mechanism comprises a lower sleeve body which is arranged on the drill rod body in a sleeving mode and an upper sleeve body which is arranged on the drill rod body in a sliding and sleeving mode, a plurality of diameter changing plates are connected to a portion between the lower sleeve body and the upper sleeve body, the diameter changing plates are arranged in the circumferential direction of the drill rod body, each diameter changing plate comprises an upper connecting plate which is connected to the upper sleeve body in a pivoted mode and a lower connecting plate which is connected to the lower sleeve body in a pivoted mode. the lower connecting plates are connected to the upper connecting plates in a pivoted mode, and the drill rod body is connected with a first driving assembly used for driving the lower sleeve body to vertically slide. The drill rod has the effect of improving the universality of the drill rod.

Description

technical field [0001] The present application relates to the field of drill pipes for cement mixing piles, in particular to a drill pipe for cement mixing piles. Background technique [0002] Cement-soil mixing pile is a construction method used to reinforce saturated soft clay foundations. It uses cement as a curing agent, and through a special mixing machine, the soft soil and curing agent are forcibly stirred deep in the foundation. At the same time, using the curing agent and A series of physical and chemical reactions between soft soils harden soft soils into high-quality foundations with integrity, water stability and certain strength. [0003] The Chinese patent with the publication number CN103883260A discloses a triaxial triangular cement mixing drill pipe, which includes triaxial drill pipes in a triangular distribution. When the power input end of the transmission box is three terminals, the three terminals are respectively connected with the power output ends o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/32E21B4/04E02D5/46
CPCE21B10/32E21B4/04E02D5/46
Inventor 周鑫鑫黄丽莎王一锋金俊杰潘海翔
Owner 无锡市政建设集团有限公司
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