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Construction method of four-tube high-pressure rotary grouting pile

A technology of high-pressure rotary grouting piles and high-pressure rotary grouting pile machines, which can be used in sheet pile walls, foundation structure engineering, construction, etc., and can solve problems such as low bending strength

Active Publication Date: 2021-02-09
CCCC THIRD HIGHWAY ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the jet grouted piles prepared by the above three commonly used techniques only have cement components, and the flexural strength is relatively low to a certain extent.

Method used

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  • Construction method of four-tube high-pressure rotary grouting pile
  • Construction method of four-tube high-pressure rotary grouting pile
  • Construction method of four-tube high-pressure rotary grouting pile

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Embodiment Construction

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0037] It should be understood that terms such as "having", "comprising" and "including" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0038] It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are conventional methods, and the reagents and materials, if not otherwise specified, can be obtained from commercial sources; in the description of the present invention, It should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "arrangement" should be interpreted in a broad sense, for example, it can be fixedly connected, arranged, or detachably connected, arranged, or Connect and set in one piece. ...

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PUM

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Abstract

The invention discloses a quadruple-pipe high-pressure jet grouting pile construction method. The method comprises the steps of firstly, construction preparing, wherein a construction site is cleanedand leveled, a pollution discharge system is built, all devices are mounted and checked, a drill machine is in place, a quadruple-pipe high-pressure jet grouting pile machine is in place, and cement paste with needed strength is configured for standby application; secondly, drilling position determining; thirdly, drilling machine pore forming; fourthly, injection pipe lowering; fifthly, jet grouting; and sixthly, device cleaning and displacing, and executing of the construction process of the next pile. Reinforcing rods are added in a forming pile column, and the anti-bending strength of the forming pile column is improved.

Description

technical field [0001] The invention relates to the technical field of building construction. More specifically, the invention relates to a construction method of a quadruple tube high-pressure rotary grouting pile. Background technique [0002] The high-pressure rotary grouting construction technology uses a rotating nozzle to spray high-speed fluid while cutting the soil while mixing the cement slurry with the chopped soil. After a chemical reaction, a solid reinforced soil column is formed, and the strength can reach more than several MPa. Traditional high-pressure rotary jet drilling has single, double and triple drilling tools. Single weight means that only one channel can only transmit one medium (mud) at a time. To transmit other media (water), it is necessary to stop the tube and change the tube, which is not only inconvenient to replace, but also easy to cause blockage, and the diameter of the hole is small. Double has a double channel, which can transmit two med...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/46
CPCE02D5/46
Inventor 张争鹏郑楠刘利军孙贵新张旭
Owner CCCC THIRD HIGHWAY ENG
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