High-pressure-water cavitation rock breaking TBM and construction method thereof

A high-pressure water and high-pressure water pump technology, used in earth-moving drilling, mining equipment, tunnels, etc., to achieve the effect of reducing total thrust, reducing vibration, and reducing central belt conveyors
CN110410093AInactive Publication Date: 2019-11-05CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
10 Cites 10 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
Publication Date
2019-11-05
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a high-pressure-water cavitation rock breaking TBM and a construction method thereof. The TBM comprises a main machine. A cutter disc is arranged at the front end of the main machine and provided with pulse cavitation nozzles. The pulse cavitation nozzles are connected with a high-pressure-water system. A vacuum sewage discharge system is connected to the rear portion of the cutter disc. The cutter disc is connected with a main driver arranged in the main machine. A slag inlet is formed in the front end face of the cutter disc. A muddy water bin is arranged on the rearportion of the cutter disc. A slag outlet is formed in the lower portion of the muddy water bin and connected with the vacuum sewage discharge system. According to the TBM, the multiple pulse cavitation nozzles are reasonably arranged on the cutter disc, the high pressure water forms cavitation water jet flow after passing through the cavitation nozzles and directly impacts, corrodes and crushes rock, full-fracture-surface pure water rock breaking is achieved, the rock breaking efficiency is improved, and the construction risk is reduced. According to the TBM, non-contact type rock breaking isadopted, torque and total thrust of the main driver can be reduced effectively, power of the main driver is reduced, meanwhile, vibration of the TBM is reduced, and abrasion and replacement of cutters are reduced.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of tunnel construction, in particular to a high-pressure water cavitation rock-breaking TBM and a construction method thereof. Background technique

[0002] TBM excavation is commonly used in the mechanized construction of long-distance mountain tunnels. At present, TBM mostly uses hobs to press, roll, split and grind rocks to achieve the purpose of breaking rocks. The broken rock is scraped into the belt conveyor by the cutterhead bucket, and the belt conveyor transports the broken rock to the transport locomotive or the continuous belt conveyor connected at the rear, and then transported to the outside of the cave to complete the excavation process. When hard rock is encountered during excavation, the hob is severely worn and frequently changed, which seriously affects the excavation efficiency.

[0003] Based on this reason, a variety of auxiliary rock-breaking measures are proposed to improve tunneling ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More