Straddle type monorail PC track beam transporting and erecting integrated construction method in tunnel with circular section

Abstract

The invention relates to a straddle type monorail PC track beam transporting and erecting integrated construction method in a tunnel with a circular section. The construction method comprises the following steps that two self-deformation rubber-tyred PC track beam transporting and erecting integrated vehicles are provided, one vehicle is defined as a front vehicle, the other vehicle is defined asa rear vehicle, and a PC track beam is lifted by the front vehicle and the rear vehicle at the same time; transverse clamping devices of the front vehicle and the rear vehicle are moved up and down tobe matched with the height of the PC track beam, the PC track beam is fixed to the front vehicle and the rear vehicle, and the front vehicle and the rear vehicle synchronously transport the PC trackbeam to drive into the tunnel with the circular section to the positions behind a PC track beam concrete anchor box base to be in place; PC track beam erection is completed according to a design construction drawing; and the front vehicle and the rear vehicle withdraw from the tunnel with the circular section respectively and return to transport the next PC track beam. According to the construction method, the obstacle crossing capacity of construction equipment is improved, so that the construction organization for beam erection is changed into an organization mode according to three modes from traditional organization construction from one direction of a tunnel.

Description

technical field [0001] The invention relates to the technical field of tunnel engineering, in particular to a construction method in which straddle-type monorail PC track beams and frames are integrated in a tunnel with a circular section. Background technique [0002] The straddle-type monorail system means that the vehicle uses rubber wheels to straddle the track beam that is integrated with the beam and rail. In addition to the running wheels, there are guide wheels and stabilizing wheels on both sides of the bogie, which are sandwiched on both sides of the track beam. , to ensure that the vehicle runs safely and smoothly along the track. [0003] The straddle monorail is a three-dimensional traffic (viaduct + tunnel) mode. The straddle monorail track girder system uses steel girders at large spans, and the rest mostly uses prestressed concrete track girders (referred to as PC track girders). PC track girders are generally erected by truck cranes or bridge erecting machi...

AI Technical Summary

Problems solved by technology

However, there are still some disadvantages as follows: when the beam erecting machine and the beam transporting vehicle are used in conjunction with the erection, the beam erecting machine and the beam transporting trolley need to be used, which increases the construction machinery and thus increases the construction cost; the movement of the beam transporting trolley in the tunnel is hindered by the tunnel bottom surface The greater influence of objects restricts the flexibility of construction and affects the construction efficiency

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