CONSTRUCTION METHOD AND STRUCTURE OF PRESSURE DISPERSING EXPANSION HEAD ANCHOR ROD

Title:

CONSTRUCTION METHOD AND STRUCTURE OF PRESSURE DISPERSING EXPANSION HEAD ANCHOR ROD

Document Type and Number:

WIPO Patent Application WO/2015/176614

Kind Code:

A1

Abstract:

A construction method of a pressure dispersing expansion head anchor rod, the method comprising: a drill rod conducts rotary jet grouting and cutting drilling in a soil layer to form a water pressure rotary jet grouting and cutting drilling section (1) and a cement paste pressure rotary jet grouting and cutting drilling section (2); and the length of the cement paste pressure rotary jet grouting and cutting drilling section (2) is 2-4 meters, and the maximum inner diameter of a cross section is 600-800 millimeters. Also provided is a structure of the pressure dispersion expansion head anchor rod. The structure forms the water pressure rotary jet grouting and cutting drilling section (1) and the cement paste pressure rotary jet grouting and cutting drilling section (2), and the cement in the cement paste pressure rotary jet grouting and cutting drilling section (2) hardens, covers and fixes an anchor cable bearing plate and an anchor cable (3).

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WO/2001/044584	INTERLOCK ANCHOR ROD FOR CONCRETE AND A BIT OF DRILL FOR ENLARGING THE EARTHEN HOLE
JPH08184038	PEDESTAL ANCHOR BOLT FIXING METHOD

Inventors:

ZHOU JIANMING (CN)
CHENG LIANGKUI (CN)
FAN HUIJU (CN)
DU MINGXIANG (CN)

Application Number:

PCT/CN2015/078695

Publication Date:

November 26, 2015

Filing Date:

May 11, 2015

Export Citation:

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Assignee:

SUZHOU NG FOUNDATION ENGINEERING CO LTD (CN)

International Classes:

E02D5/74

Foreign References:

CN104032737A	2014-09-10
CN203866824U	2014-10-08
CN101575854A	2009-11-11
CN103526754A	2014-01-22
JP2000345560A	2000-12-12
DE3824955A1	1990-01-25

Other References: