Title:
METHOD FOR CONSTRUCTION OF BOOM-TYPE ROADHEADER FOR URBAN SHALLOW TUNNEL WITH INTENSIVE KARST AND RICH WATER
Document Type and Number:
WIPO Patent Application WO/2018/045746
Kind Code:
A1
Abstract:
Disclosed is a method for construction of a boom-type roadheader for an urban shallow tunnel with intensive karst and rich water, comprising the following steps: measuring and positioning an excavation tunnel face, and then performing geological exploration using an advanced geological prediction system; excavating a rock mass by using a boom-type roadheader and cutting picks thereon; when rocks are accumulated to a particular quantity, loading the rocks using an excavator behind the roadheader, transporting the rocks to a vertical-shaft collection hopper by using a transport vehicle or a belt conveyor, and lifting the rocks to the ground by means of the hopper; driving the roadheader back to a position at a particular distance behind the tunnel face after the roadheader completes an excavation cycle, and then constructing an anchor rod and erecting a steel truss; spraying concrete for construction of a primary lining, and sealing the excavated rock face; and pouring concrete for construction of a secondary lining, and forming a tunnel. By stripping rock stratums one by one with a boom-type roadheader for excavation, the influence on the surroundings is less, and construction safety and quality are improved. In addition, construction efficiency is improved and construction costs are reduced.
Inventors:
WANG JUN (CN)
LONG ZHONGHUANG (CN)
SUN ZESHUN (CN)
WANG WENXUAN (CN)
ZHANG YUE (CN)
HU ZHONGFEI (CN)
TU WENLIANG (CN)
HUANG LEI (CN)
HE PEIPEI (CN)
LI PENGJU (CN)
WANG ZHENYU (CN)
ZHANG JIAQI (CN)
HU ZHICHAO (CN)
ZHAO JUNJUN (CN)
LIU ZHANZHONG (CN)
LONG ZHONGHUANG (CN)
SUN ZESHUN (CN)
WANG WENXUAN (CN)
ZHANG YUE (CN)
HU ZHONGFEI (CN)
TU WENLIANG (CN)
HUANG LEI (CN)
HE PEIPEI (CN)
LI PENGJU (CN)
WANG ZHENYU (CN)
ZHANG JIAQI (CN)
HU ZHICHAO (CN)
ZHAO JUNJUN (CN)
LIU ZHANZHONG (CN)
Application Number:
PCT/CN2017/079460
Publication Date:
March 15, 2018
Filing Date:
April 05, 2017
Export Citation:
Assignee:
NANCHANG RAILWAY ENG CO LTD OF CHINA RAILWAY 24TH BUREAU GROUP CO LTD (CN)
International Classes:
E21D9/10; E21D9/12; G01V3/00
Foreign References:
| CN101251605A | 2008-08-27 | |||
| CN103291308A | 2013-09-11 | |||
| CN106246193A | 2016-12-21 | |||
| CN104763437A | 2015-07-08 | |||
| CN102817619A | 2012-12-12 | |||
| JPH1136338A | 1999-02-09 |
Attorney, Agent or Firm:
VALLEY OF SOFT BEIJING INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF: