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Same-plane multi-cutter-disc rectangular tunneling machine used in water-rich pebble stratum

A tunnel boring machine and co-planar technology, which is applied in tunnels, mining equipment, earthwork drilling and mining, etc., can solve the problems of limited mixing area, poor fluidity of muck and large soil disturbance, and achieve control of settlement, increase of fluidity, The effect of avoiding soil collapse

Active Publication Date: 2016-09-14
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of the current existing rectangular roadheader for cobblestone formations that have large disturbance to the soil, limited mixing area, poor fluidity of the muck, and easy to cause soil collapse, so as to realize a kind of cutter head that is in the same plane. At the same time, the tunnel face can be effectively supported to avoid soil collapse, and the same-plane multi-cutter rectangular tunnel boring machine with good adaptability to cobblestone stratum is used for water-rich cobblestone stratum

Method used

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  • Same-plane multi-cutter-disc rectangular tunneling machine used in water-rich pebble stratum
  • Same-plane multi-cutter-disc rectangular tunneling machine used in water-rich pebble stratum
  • Same-plane multi-cutter-disc rectangular tunneling machine used in water-rich pebble stratum

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Embodiment

[0025] The multi-cutter rectangular tunnel boring machine in the same plane for water-rich cobblestone formations of the present invention includes a shield body 1 that plays a supporting role, a cutter head mechanism 2 located at the front end of the shield body, and a cutter head drive mechanism on the rear side of the cutter head mechanism 2 3 and the muck conveying mechanism 4, the cross section of the shield body 1 is rectangular, and the shield body includes a front shield 101, a deviation correction cylinder 102 and a tail shield 103, and the front shield 101 and the tail shield 103 are connected by a deviation correction cylinder 102, so The cutterhead mechanism 2 includes 10 cutterheads arranged symmetrically on the same plane, and the cutterhead mechanism 2 includes a large cutterhead 201, a medium-sized cutterhead 202, a small cutterhead 203 and a miniature cutterhead 204, and there are 4 large cutterheads 201, and The large cutter head 201 is located at the four cor...

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Abstract

The invention relates to the technical field of tunnel construction equipment, in particular to a same-plane multi-cutter-disc rectangular tunneling machine used in a water-rich pebble stratum. The same-plane multi-cutter-disc rectangular tunneling machine comprises a shield body, a cutter disc mechanism, a cutter disc driving mechanism and a residue soil delivery mechanism, wherein the cutter disc mechanism comprises 10 cutter discs symmetrically arranged on the same plane and comprises large cutter discs, middle cutter discs, small cutter discs and miniature cutter discs, the 10 cutter discs perform cooperative rotation on the same plane and do not interfere mutually. An advanced grouting pipe is obliquely arranged at the upper portion of the shield body. The excavation cutter discs of the same-plane multi-cutter-disc rectangular tunneling machine used in the water-rich pebble stratum are located on the same plane, unique structures of the cutter discs make the adaptability of the tunneling machine to the water-rich pebble stratum improved greatly, meanwhile an excavating face is effectively supported, soil body collapse is avoided, soil body sedimentation can be effectively controlled, and accordingly the life safety of workers is ensured.

Description

technical field [0001] The invention relates to the technical field of tunnel construction equipment, in particular to a rectangular tunnel boring machine with multiple cutterheads on the same plane used in water-rich cobblestone formations. Background technique [0002] With the development of the economy, the urbanization process is gradually accelerating, and the road space is getting smaller and smaller. The construction of underground tunnels has become a new direction in the current construction field. The rectangular tunnel boring machine has the advantages of high space utilization rate, shallow covering soil and relatively low construction cost, and its effective use area is more than 20% larger than that of the circular pipe jacking. At present, domestic rectangular tunnel boring machines are still limited to conventional rectangular tunnel boring machines that are only suitable for soft soils such as silt, sticky, silt, sand, etc., but the application of rectangul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/10E21D9/087E21D9/12
CPCE21D9/0879E21D9/1006E21D9/124
Inventor 李建斌龚廷民范磊王小涛蒋鹏鹏孙国艳
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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