Fast-splicing and fast-dismounting type tunnel temporary rod piece supporting device

Abstract

The invention discloses a fast-splicing and fast-dismounting type tunnel temporary rod piece supporting device. Thefast-splicing and fast-dismounting type tunnel temporary rod piece supporting device comprises a splicing type expanded steel beam foundation, and a plurality of supporting unit bodies capable of adjusting the supporting working form are detachably connected to the splicing type expanded steel beam foundation. The expanded steel beam foundation is arranged on the tunnel ground and serves as a stress foundation of the whole device, and the supporting unit body can be flexibly installed on the expanded steel beam foundation according to actual needs. According to a to-be-supported surface, the supporting working form can be a vertical supporting working form, a transverse supporting working form or an inclined supporting working form capable of adjusting the supporting angle, multi-form rapid supporting and reinforcing of a tunnel structure are achieved, and supporting is flexible and efficient. The fast-splicing and fast-dismounting type tunnel temporary rod piece supporting device is simple in structure, low in cost and flexible and efficient in installation, the building block principle is adopted for assembly design, the whole device has the rapid assembly and rapid disassembly functions, the working form conversion process of the device is efficient and orderly, the supporting and reinforcing effects are good, and the practicability and safety are high.

Description

technical field [0001] The invention relates to a quick-assemble and quick-dismantle tunnel temporary rod supporting device, which belongs to the technical field of tunnel construction. Background technique [0002] During the tunnel construction process, there are many reasons such as weak and broken surrounding rock, poor construction quality or weak support parameters, which lead to cracking and deformation of the tunnel structure. A tunnel collapse accident. Emergency control measures for unfavorable deformation of the tunnel structure include two categories: backfilling backpressure of slag and adding temporary supports. Among them, backfilling backpressure of slag requires the cooperation of large machinery, and the construction space close to the arch of the tunnel is severely limited, making backfilling difficult. . In addition, the backfill backpressure of the cavities has a great influence on the construction progress, so the backfill backpressure scheme is not t...

AI Technical Summary

Problems solved by technology

Temporary processing of support rods takes a certain amount of time, which may delay the timing of emergency rescue, and the processed support rods are only suitable for specific cross-sectional sizes, and the recycling rate of materials is low

In addition, the contact effect between the simply processed support rods and the tunnel structure and the supporting ground is not good, and it is easy to produce deviation during the stress process, which in turn affects the overall support effect of the rods

It can be seen that there are relatively obvious defects in the temporarily reinforced support rods, and the entire support system has a lot of room for improvement

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