Device and method for preventing gushing of water-rich stratum and improving shield tunneling efficiency

A water-rich formation and gushing prevention technology, which is applied to mining equipment, earthwork drilling, mining equipment, etc., can solve problems such as shield machine flooding, tunnel collapse, prone ground subsidence, casualties, etc., to speed up dredging slag effect, reduce the workload of slag removal, and reduce the effect of cleaning time
CN112943271APending Publication Date: 2021-06-11THE 5TH ENG OF THE THIRD ENG GROUP OF CHINA RAILWAY +1
8 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
THE 5TH ENG OF THE THIRD ENG GROUP OF CHINA RAILWAY
Publication Date
2021-06-11

Smart Images

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

Abstract

The invention discloses a device and method for preventing gushing of a water-rich stratum and improving shield tunneling efficiency, and belongs to the technical field of tunnel shield construction. The device and method can solve the problems that a shield tunneling machine is prone to surface collapse, the shield tunneling machine is flooded, a tunnel collapses, personnel casualty accidents and the like in the construction process of penetrating through the water-rich stratum. The device comprises a belt conveyor, a screw conveyor located above the belt conveyor and a water collecting tank and a side drainage water collecting tank which are located at the bottom of the belt conveyor; the tunneling method comprises the steps of water drainage in a soil bin, solid soil pressure establishment, soil bin muck improvement, shield tunneling machine propelling, spewing prevention and rapid pressure relief and drainage and slag dredging system starting; and meanwhile, muck and muddy water accumulated at the bottom of the shield tunneling machine and falling out of the belt conveyor are effectively prevented, manual regular cleaning is not needed, and the shield tunneling efficiency is improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of tunnel shield construction, and in particular relates to a device and method for preventing gushing in water-rich strata and improving the efficiency of shield tunneling. Background technique

[0002] In recent years, with the great development of domestic urban rail transit, the shield method has been widely used in rail construction because of its advantages of safety, high efficiency and wide adaptability. Due to its extensive stratum adaptability and strong rock-breaking ability, earth pressure balance shield has increasingly become the first choice for shield tunneling construction under various complex stratum conditions. However, in the construction of water-rich strata, due to the large water content in the stratum, the weathering of the rock strata during the shield machine's crossing process is prone to problems such as fragmentation and looseness. When the screw conveyor is not well sealed or t...

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