CN214787521U - Tunnel collapse side miniature pilot tunnel rescue construction structure - Google Patents

Abstract

The utility model provides a miniature pilot hole rescue construction structures of tunnel collapse side, be trapezoidal little pilot hole including the section, the hole of little pilot hole reaches the entrance to a cave all through the square timber support of close packing, and the side square timber of both sides sets up upper beam square timber and underbeam square timber between two side square timbers including being located little pilot hole and along horizontal support, and the draw-in groove that is used for the card to establish the upper beam square timber is offered to the inboard of two side square timber upper ends, and the both ends of upper beam square timber are blocked respectively and are located the draw-in groove of two side square timbers, and the guide rail has been laid along the length direction of little pilot hole on the underbeam square timber, and the walking is provided with row sediment dolly on the guide rail. The problems of large slag discharge amount, low construction efficiency and the like in the existing small guide pit rescue are solved. Belonging to the field of tunnel rescue.

Description

Tunnel collapse side miniature pilot tunnel rescue construction structure

Technical Field

The utility model relates to a miniature pilot tunnel rescue construction structures of tunnel collapse side belongs to tunnel rescue field.

Background

Due to geological complexity and unpredictability, unreasonable structural design and construction organization, collapse accidents in the tunnel construction process are difficult to avoid. When the small pilot tunnel is used for rescue in the early stage, firstly, the section size of the small pilot tunnel is unreasonable, the section size of the early pilot tunnel is large, the structure after supporting is relatively unstable, the slag discharge amount is large, and the rescue progress is seriously influenced; secondly, the construction structure and method are unreasonable, the construction efficiency is low, and the rescue time is influenced. In order to solve the problems, a ladder-shaped small pilot tunnel rescue construction structure mainly based on manual work is provided by relying on a river urn two-day pilot tunnel rescue example, so that the defects of early small pilot tunnel rescue are overcome.

Disclosure of Invention

The utility model provides a miniature pilot tunnel rescue construction structures of tunnel collapse side to solve the volume of slagging tap that present little pilot tunnel rescue exists big, the low scheduling problem of efficiency of construction.

In order to realize the above purpose, plan to adopt such miniature pilot hole of tunnel collapse side rescue construction structures, be trapezoidal little pilot hole including the section, the hole of little pilot hole reaches the entrance to a cave all through the square timber support of close packing, the square timber is including the side square timber that is located both sides in little pilot hole and along transversely supporting upper beam square timber and the underbeam square timber that sets up between two side square timbers, the draw-in groove that is used for the card to establish the upper beam square timber is offered to the inboard of two side square timber upper ends, the both ends of upper beam square timber are blocked respectively in the draw-in groove of two side square timbers, the length direction along little pilot hole has been laid on the underbeam square timber, it is provided with the sediment dolly to walk on the guide rail.

In the rescue construction structure, the guide rail is fixedly arranged on one side of the upper part of the square timber of the lower beam, so that people can pass through the other side of the guide rail;

in the rescue construction structure, adjacent square timbers are fixedly connected through cramps;

in the rescue construction structure, the upper width of the section of the opening of the small pilot pit is 135-inch thick 150cm, the lower width thereof is 145-inch thick 160cm, the height thereof is 160-inch thick 170cm, the upper width thereof is 105-inch thick 115cm, the lower width thereof is 115-inch thick 125cm, and the height thereof is 115-inch thick 125 cm;

in the rescue construction structure, the upper width of the section of the opening of the small pilot tunnel is 140cm, the lower width is 150cm and the height is 165cm, and the upper width of the section of the entrance of the small pilot tunnel is 110cm, the lower width is 120cm and the height is 120 cm.

Compared with the prior art, the utility model discloses an increase the underbeam square timber bottom, can effectively increase the stability of both sides square timber, improve the security performance in little pilot hole, and simultaneously, the underbeam square timber of close packing increases the bottom roughness, for the bottom increases the guide rail and provides the condition, the bottom increases the guide rail and arranges the sediment dolly after, replace the artifical fortune sediment of rescue personnel, the intensity of labour of rescue personnel has greatly been reduced, the rescue personnel who will save are used for the circulation of pilot hole front end to take over the excavation, further improve rescue efficiency, use river urn highway two nest day tunnel collapse rescue as the example, the application of this rescue construction method/structure, not only can shorten 60% rescue time, from the direct cost accounting of rescue, practice thrift direct rescue cost 56.52 ten thousand, in time should popularize and apply.

Drawings

Fig. 1 is a schematic front structural view of a small pilot pit of the present invention (including a hole and a pilot pit structure inside the hole);

FIG. 2 is a side view of FIG. 1;

fig. 3 is a schematic diagram of the structure inside the small pilot hole in fig. 1.

Detailed Description

To further clarify the objects, technical solutions and advantages of the present invention, a more particular description of the invention will be rendered by reference to the appended drawings, which are illustrated in the appended drawings.

Examples

Referring to fig. 1 to 3, the embodiment provides a tunnel collapse miniature pilot hole rescue construction structure, which comprises a small pilot hole 1 with a trapezoidal section, wherein the upper width of the section of a hole opening of the small pilot hole 1 is 140cm, the lower width is 150cm, the height is 165cm, the upper width of the section of a hole entering the small pilot hole 1 is 110cm, the lower width is 120cm, the height is 120cm, the hole and the hole opening of the small pilot hole 1 are supported by densely arranged square timbers, each square timbers comprises side square timbers 11 positioned at two sides in the small pilot hole 1 and upper beam square timbers 12 and lower beam square timbers 13 arranged between the two side square timbers 11 along a transverse support, clamping grooves 14 for clamping the upper beam square timbers 12 are formed in the inner sides of the upper ends of the two side square timbers 11, two ends of the upper beam square timbers 12 are respectively clamped in the clamping grooves 14 of the two side square timbers 11, adjacent square timbers are fixedly connected by staples, a guide rail 2 is arranged on one side of the lower beam square timbers 13 along the length direction of the small pilot hole 1, the other side is used for people to pass through, and a slag discharge trolley 3 is arranged on the guide rail 2 in a walking way.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (5)

1. The utility model provides a miniature pilot tunnel of tunnel collapse side rescue construction structures which characterized in that: including the section for trapezoidal little pilot hole (1), the hole of little pilot hole (1) is interior and the entrance to a cave all supports through the square timber of close packing, the square timber is including being located side square timber (11) of both sides in little pilot hole (1) and setting up in upper beam square timber (12) and underbeam square timber (13) between two side square timber (11) along horizontal support, draw-in groove (14) that are used for the card to establish upper beam square timber (12) are seted up to the inboard of two side square timber (11) upper ends, the draw-in groove (14) of locating two side square timber (11) are blocked respectively at the both ends of upper beam square timber (12), length direction along little pilot hole (1) is laid guide rail (2) on underbeam square timber (13), it is provided with row sediment dolly (3) to walk on guide rail (2).

2. The tunnel collapse type micro pilot pit rescue construction structure according to claim 1, characterized in that: the guide rail (2) is arranged on one side of the upper part of the lower beam square timber (13) so that people can pass through the other side of the upper part of the lower beam square timber.

3. The tunnel collapse type micro pilot pit rescue construction structure according to claim 1, characterized in that: the adjacent square timbers are fixedly connected through the cramp.

4. The tunnel collapse type micro pilot pit rescue construction structure according to claim 1, characterized in that: the upper width of the hole opening section of the small conductive pit (1) is 135-150cm, the lower width is 145-160cm, the height is 160-170cm, the upper width of the hole entrance section of the small conductive pit (1) is 105-115cm, the lower width is 115-125cm, and the height is 115-125 cm.

5. The tunnel collapse type micro pilot pit rescue construction structure according to claim 4, characterized in that: the upper part of the section of the opening of the small pilot pit (1) is 140cm wide, the lower part of the section is 150cm wide and 165cm high, and the upper part of the section of the entrance of the small pilot pit (1) is 110cm wide, the lower part of the section is 120cm wide and the height of the section is 120 cm.

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