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Tunnel driving shield support and supporting method

A technology for shielding supports and roadways, which is used in mine roof supports, earth-moving drilling, mining equipment, etc., can solve problems such as poor adaptability and complex structure, and achieve the effects of low cost, stable support, and reduced torque.

Pending Publication Date: 2019-01-04
中矿智控(北京)矿山设备有限公司
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AI Technical Summary

Problems solved by technology

[0004] One of the objectives of the present invention is to provide a roadway excavation shielding bracket to solve the complex structure and poor adaptability of the roadway excavation shielding bracket existing in the prior art, especially when the roof and / or floor of the roadway are uneven, the shielding bracket exists Numerous technical problems; the second object of the present invention is to provide a support method for roadway excavation shield support

Method used

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  • Tunnel driving shield support and supporting method
  • Tunnel driving shield support and supporting method
  • Tunnel driving shield support and supporting method

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Embodiment 1

[0050] Such as Figure 1a , Figure 1b , Figure 1c , figure 2 , image 3 , Figure 4a , Figure 4b and Figure 5 Shown is a specific implementation of the roadway excavation shield bracket of the present invention. In this embodiment, the roadway excavation shield bracket mainly includes: a shield plate girder 1 and a two-way jacking mechanism 2 .

[0051] The cover plate girder 1 is a splicing structure, and the cover plate girder 1 of the splicing structure is composed of at least two concave-convex splicing plates connected into a whole by high-strength bolts. A plurality of drilling skylights 3 are provided on the cover plate beam 1, and the anchor rod (cable) drilling equipment is drilled at the roadway top 101 through the drilling skylight 3 under the cover plate beam 1 for installing the anchor rod (cable), The quantity, position and size of the drilling skylight 3 can be reasonably selected according to the roadway support design, which can realize the simultan...

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Abstract

The invention provides a tunnel driving shield support. The support comprises a shield plate beam. The shield plate beam is provided with a bidirectional top extension mechanism which can simultaneously stretch out from the upper portion and the lower portion of the shield plate beam. The bidirectional top extension mechanism is supported on a tunnel base plate and a tunnel top plate, and then theshield plate beam is supported below the tunnel top plate. By using the tunnel driving shield support, the bidirectional top extension mechanism is supported on the upper surface of the tunnel base plate and the lower surface of the tunnel top plate; the above support mode is stable, the shield plate beam is prevented from moving and toppling; and in a certain range, the height of the shield beamplate can be adjusted. In a traditional technology, the shield beam plate is in contact with the uneven tunnel top plate so that the shield beam plate is distorted and deformed. In the invention, theabove condition is avoided, and the safety of workers carrying out anchor bolt support operation under the tunnel driving shield support is protected. The invention also discloses the supporting method of the tunnel driving shield support.

Description

technical field [0001] The invention relates to the field of temporary support for mine roadways, traffic and water conservancy tunnels, in particular to a roadway excavation shield bracket used in the roadway and a support method for the shield bracket. Background technique [0002] At present, the temporary support forms used in the coal mine roadway excavation face are point column support, single hydraulic support with metal hinged top beam support and temporary support. Among them, point column support and single hydraulic support with metal hinged roof beam support require personnel to enter the roof control area to work, which is quite dangerous, and the labor intensity is high, time-consuming and complicated to operate; the temporary support mainly It is a self-moving temporary support, and the mobile methods mainly include sliding type and push-pull type. However, in the actual production on site, the self-moving temporary support has not been widely used in coal mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D23/04E21D23/06E21D23/12
CPCE21D23/04E21D23/06E21D23/12E21D23/0047
Inventor 马振凯
Owner 中矿智控(北京)矿山设备有限公司
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