Method of constructing underground parking lot in pipe-jacking tunnel

Abstract

The invention provides a method of constructing underground parking lot in a pipe-jacking tunnel. The method comprises the steps that C-shaped reinforced concrete members are prefabricated; reinforcedconcrete slab upper boards and lower boards are prefabricated; dangling sides of the prefabricated C-shaped reinforced concrete members are closed by supporting closed members to form frame-shaped jacking pipes I; both ends of the reinforced concrete slab upper boards and lower boards are closed to form frame-shaped jacking pipes II; a working well is arranged; firstly, the frame-shaped jacking pipes I are jacked in a penetrating mode; then, the frame-shaped jacking pipes II are jacked in sequence according to the design, the frame-shaped jacking pipes II of first column of vertical columns are completed; supporting closed members of vertical column parts are dismantled, and the vertical columns are held; the first column of the vertical columns and the top layer of the supporting closedmembers between the C-shaped reinforced concrete members are dismantled, and the upper boards are supported by embedded strutting pieces; vertical-and-horizontal transverse beams are made at seams between upper boards of the C-shaped reinforced concrete members and the reinforced concrete upper boards; and other supporting closed members are dismantled, and the parking space of a first part is achieved.

Description

technical field [0001] The invention belongs to the technical field of urban underground engineering construction, and in particular relates to a method for constructing an underground parking lot through a pipe jacking tunnel. Background technique [0002] With the popularization of automobiles in people's lives, the number of motor vehicles has increased, and the problem of difficult parking of motor vehicles has begun to appear. "Difficulty in parking" followed by "difficulty in driving" has become another universal problem that plagues the development of road traffic in many cities. One of the current solutions is to build an underground parking lot. Patent CN201510652873.5 Large-scale underground parking lot mechanical excavation construction method. First, according to the design of the parking lot, two parallel construction tunnels are constructed at both ends of the planned space of the parking lot. The section height of the construction tunnel is greater than the p...

AI Technical Summary

Problems solved by technology

[0003] In the above invention, there are some problems: after the distributed jacking of rectangular pipes is completed, it is necessary to radially grout reinforcement and waterproof treatment between the rectangular pipes of adjacent rectangular tunnels, then add beams and columns, and finally remove the rectangular pipes removable thin walls

Beams and columns cannot be set in the gap between two adjacent rectangular tunnels, and the support effect on the tunnel is not good

Moreover, after removing the thin-walled walls, since there is a gap between the rectangular jacking pipes of two adjacent tunnels, it is necessary to pour the gap part, and the procedure is cumbersome

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