A Shield Machine Applicable to High Stress Soft Rock Formation
A high ground stress, shield machine technology, applied in mining equipment, tunnels, earthwork drilling and other directions to reduce construction risks
Active Publication Date: 2021-06-18
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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Problems solved by technology
[0004] The present invention proposes a shield machine suitable for soft rock formations with high ground stress, which solves the problem of the application of existing shield / TBM technology in soft rock formations with high ground stress and large tunnel deformation
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[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] Such as figure 1 As shown, a shield machine suitable for high ground stress soft rock formations includes a cutter head device 1 arranged at the front, a drive device 2 adjacent to the rear of the cutter head device, a shield body 3 supporting the entire equipment, and an advanced Tunneling device 4, main propulsion system 5, segment assembly machine 6 and conveyor 7.
[0024] The shield body 3 includes a front shield 301, a middle shield 302 and a tai...
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The invention proposes a shield machine suitable for high ground stress soft rock formations, including a cutter head device and a shield body, a front shield partition is arranged in the shield body, an advanced tunneling channel is arranged on the front shield partition, and a There is an advanced tunneling device, and the advanced tunneling device includes an advanced tunneling cutterhead, a screw blade shaft, a guide rail, an advanced tunneling drive, an advanced support device and an advanced propulsion device, the advanced tunneling cutterhead is connected to the screw blade shaft, and the screw blade shaft is connected to the advanced driving device , An advance propulsion device is arranged between the advance drive device and the advance support device, the advance support device is supported on the shield body, and the guide rail is arranged at the advance excavation channel. The advantages of the present invention: not only is it beneficial to release the energy accumulated in the rock body in advance, but also utilizes the telescopic function of the shield body to release the stress for the second time, realizing the horseshoe-shaped full-section excavation, slag removal and lining machinery in high ground stress soft rock formations Integrated construction.
Description
technical field [0001] The invention relates to tunnel construction equipment, in particular to a shield machine suitable for high ground stress soft rock formations. Background technique [0002] my country's railway construction has entered a stage of rapid development, and tunnel engineering is increasingly developing in the direction of "long, large, deep, and difficult". Especially in the western region of my country, there are high mountains and deep mountains, and many areas are mostly at the junction of plates, with complex geological conditions. The high level of ground stress makes tunnel construction difficult, and the problem of large deformation of the tunnel caused by high ground stress is particularly prominent. In this kind of tunnel construction, frequently used construction methods and support systems, such as step method, three-step method, double-side wall pilot pit method, CD method, CRD method, etc., are mostly based on the new Austrian method, namely B...
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IPC IPC(8): E21D9/06E21D9/08E21D9/12
Inventor 李建斌王小涛范磊徐德帆董艳萍陈敬举
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD