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Title:
DEVICE AND METHOD FOR HORIZONTAL ROTARY JETTING CONSTRUCTION
Document Type and Number:
WIPO Patent Application WO/2010/028532
Kind Code:
A1
Abstract:
A construction device and a construction method for automatically balancing surrounding soil body pressure during a horizontal rotary jetting reinforcement construction are provided. The device comprises a nozzle (1), a grouting pipe (2), a hole port sealing device fixed to a working well wall, a valve (3) adjusting opening pressure automatically, and a pressure detection device (4). The pressure detection device (4) is not mounted at the nozzle (1) or the grouting pipe (2), but mounted at the sealing device. The valve (3) will be opened automatically, when the slurry pressure is greater than the preestablished opening pressure of the value (3). Therefore, utilizing the device and the method, the balance between the slurry pressure and the surrounding soil body pressure was kept all the time during a horizontal rotary jetting reinforcement construction.

Inventors:
PENG SHAOJIE (CN)
BAI YUN (CN)
Application Number:
PCT/CN2009/000301
Publication Date:
March 18, 2010
Filing Date:
March 20, 2009
Export Citation:
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Assignee:
SHANGHAI NO 2 MUNICIPAL ENG CO (CN)
PENG SHAOJIE (CN)
BAI YUN (CN)
International Classes:
E02D3/12; E02D7/24; E02D5/46; E21D11/00
Foreign References:
CN101245599A2008-08-20
CN101230573A2008-07-30
CN1986974A2007-06-27
JPH0790838A1995-04-04
JPH06185045A1994-07-05
JPH0771026A1995-03-14
CN101387112A2009-03-18
Attorney, Agent or Firm:
CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED (Fortune International CenterNo. 17 Daliushu Rd, Beijing 1, CN)
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