Construction method for anti-floating anchor rod and special long auger

A technology of long auger drilling rig and construction method, which is applied in the directions of rotary drilling rig, earthwork drilling, rotary drilling, etc. High efficiency, reduced labor cost, clean and tidy on site

Inactive Publication Date: 2010-12-15
YANTAI ENG INVESTIGATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The invention mainly solves the problems of backward construction technology of existing anti-floating anchor rods, low efficiency, messy site, high construction cost, etc.

Method used

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  • Construction method for anti-floating anchor rod and special long auger
  • Construction method for anti-floating anchor rod and special long auger

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Embodiment

[0028] Example: see figure 1 , processed into a base 6, install walking 7 and hydraulic support legs 11 under the base 6, install a distribution box 8, an auxiliary poplar roll machine 9 and a positive roll poplar machine 10 on the base 6, and install a support arm 2 at one end of the base 6, The oblique support 4 is fixedly installed between the support arm 2 and the base 6, and the positive coiling machine 10 is connected with the power head 1 through a cable, and the drill pipe 3 is installed under the power head 1. The material of the drill rod 3 is high-strength seamless steel pipe, and the outer side is welded with high-strength track steel as the spiral blade, so that the drill rod can obtain greater rigidity; a guide frame 5 is installed between the bottom end of the drill rod 3 and the base 6, and the grouting One end of the pipe 13 is connected to the inner cavity of the drill pipe 3 through the flange, and the other end is connected to the grouting pump, and the sea...

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Abstract

The invention discloses a construction method for an anti-floating anchor rod and a special long auger. The long auger replaces a traditional hydraulic anchor rod drilling machine or a rotary drilling machine for anti-floating anchor rod construction; and the long auger is modified so as to perform small-bore diameter drilling construction and high pressure grouting. By fully utilizing high construction speed, dry bore formation, capacity of lifting the anchor rod, and other characteristics of the long auger, the construction method for the anti-floating anchor rod has the advantages of capacity of improving the construction efficiency of the anti-floating anchor rod by over ten times, no on-site mud bore formation, cleanliness, neatness, bore-forming material conservation, capacity of greatly saving manual labor, material resources and financial resources by employing the long auger for anti-floating anchor rod construction, and certain environmental protection.

Description

Technical field: [0001] The invention relates to the technical field of anti-floating anchor rod construction in construction engineering, and specifically relates to a construction technique for anti-floating anchor rods using a modified long auger drilling rig, which includes two parts: the modification of the long auger drilling rig and the construction process. Background technique: [0002] The anti-floating anchor is a kind of anchor anchored in the underground soil layer to resist the buoyancy of groundwater to the foundation floor. With the rapid development of the economy, construction projects are gradually developing towards high-rise and large-scale buildings. Almost all high-rise and large buildings have basements and garages, which also makes the application of anti-floating anchor technology in construction projects increase year by year. [0003] The existing anti-floating anchor construction has been using traditional construction techniques: [0004] Bolti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D7/00E02D7/18E02D15/04E21B3/00E21B17/00
Inventor 王志勇王德双
Owner YANTAI ENG INVESTIGATION
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