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TBM in-tunnel sliding device and implementation method of TBM in-tunnel sliding

An implementation method and chute technology, which are used in earth-moving drilling, mining equipment, tunnels, etc., can solve the problems of large friction force on the bottom plate of the chute and small sliding turning radius, so as to avoid damage to the contact surface, reduce frictional resistance, prevent high temperature effect

Pending Publication Date: 2020-07-10
SINOHYDRO BEREAU 10 CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] (1) The total weight of the shield body is about 1000t, and the friction force with the bottom plate of the chute is too large
[0006] (2) The sliding turning radius is too small, and the shield body is a rigid structure. The conventional arc-shaped sliding bottom plate can no longer meet the requirements. How does the shield body slide on the horizontal bottom plate?

Method used

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  • TBM in-tunnel sliding device and implementation method of TBM in-tunnel sliding
  • TBM in-tunnel sliding device and implementation method of TBM in-tunnel sliding
  • TBM in-tunnel sliding device and implementation method of TBM in-tunnel sliding

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Embodiment Construction

[0035] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0036] Such as figure 1 , figure 2 , image 3 and Figure 4 As shown, the sliding device in the TBM hole of the present invention is used for sliding the TBM shield 7 in the hole, and includes a chute 5, a tire mold 2 and a reaction force support structure.

[0037] The chute 5 is mainly a reinforced concrete structure. A base plate 4 is laid on the bottom of the chute 5 to prevent the tire mold 2 from directly contacting the concrete bottom surface, so as to reduce friction. Slide rails 3 are pre-embedded on both sides of the bottom plate 4, and lateral guide rails are arranged on the outer wall of the curved section of the chute 5 to ensure that the s...

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Abstract

The invention discloses a TBM in-tunnel sliding device and an implementation method of TBM in-tunnel sliding. The TBM in-tunnel sliding device is provided with a loose tooling which isolates a baseboard of a slide groove from a shield body, lubricating oil is added to friction faces between the loose tooling and slide rails to reduce friction resistance, and then high temperature of a friction pair is prevented, so that a contact surface is prevented from being damaged; and lateral slide blocks are arranged on the front and rear portions of the outer side wall of the loose tooling and cooperate with the shield body for steering use. According to the implementation method of TBM in-tunnel sliding, dynamic electricity and cooling water are introduced, and a hydraulic pump station of an advance drilling system is modified and is connected with a high-pressure oil tube of an oil cylinder at the bottom of the inner side of a tail shield to serve as a power source for advancing the shield body and completing advancing work of the TBM shield body.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a sliding device in a TBM cave and an implementation method thereof. Background technique [0002] 94.1% of the tunnel sections were excavated by two TBMs at the same time, and 5.9% of the tunnel sections were excavated by the drill and blast method. One of the two TBMs enters the main tunnel directly from the exit of the water delivery tunnel, and exits from the sliding branch tunnel. The bottom elevation of the sliding branch tunnel entrance is 1260m, and the total length is 1360m. It is a downhill tunnel and intersects with the water delivery tunnel. [0003] Principles of sliding branch tunnel layout: ①Considering the needs of later dismantling, the turning radius in the tunnel is not less than 70m, comprehensively considering the needs of TBM sliding, the turning radius at the end of the sliding branch tunnel is adjusted to 120m; ②The width of the tunnel is wide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/087E21D9/06
CPCE21D9/087E21D9/0621
Inventor 陈行文平张永周长虹刘毓川吴方明谭文华
Owner SINOHYDRO BEREAU 10 CO LTD