Tunnel vehicle-mounted folding type multifunctional work rack

Abstract

Provided is a tunnel vehicle-mounted folding type multifunctional work rack. According to the tunnel vehicle-mounted folding type multifunctional work rack, a crane chassis is used as a mobile power, and a vehicle-mounted hydraulic system is used as a hydraulic power. A fixed main supporting structure is arranged on the crane chassis. A bottom layer stretching work platform is arranged below the fixed main supporting structure, a middle layer replicating work platform is arranged above the fixed main supporting structure, and a top layer replicating work platform connected through a top layer work platform ring beam is arranged in the middle of the fixed main supporting structure. A hydraulic oil cylinder manipulates the three layers of work platforms to stretch or retract, thus the work rack is convenient and efficient. Stretching height of the top layer platform can be adjusted at random, thus installation requirements of random height space of a loopfull lagging jack can be met; landing legs are used to support the work rack, thus the work rack is safe and reliable and has good stability. The volume of the tunnel vehicle-mounted folding type multifunctional work rack is more than half smaller than a traditional rack, and the tunnel vehicle-mounted folding type multifunctional work rack can drive fast in preset grooving equipment travel space so that the speed of entry and retreat of constructions is quickened. After stretch, the work rack can meet elementary shoring construction and advanced reinforcement work of tunnel face under a whole fracture surface excavation method, and is also applicable to work of secondary lining waterproof construction and reinforcing steel bar construction.

Description

technical field [0001] The invention relates to a tooling used in tunnel construction, in particular to a vehicle-mounted foldable multifunctional operating platform for a tunnel. Background technique [0002] In the full-section excavation technology with the primary support of grooving, it is necessary to install the arch under the initial support of grooving and advance the reinforcement of the tunnel face before proceeding to the full-section excavation of the tunnel face in the next cycle. The installation of the arch frame under the primary support and the advance reinforcement of the tunnel face need to be carried out on the workbench. At present, most of the traditional workbenches for primary support of grooving are passable steel skeleton structures with fixed width and height. This kind of workbench with passable steel skeleton structure has the following disadvantages: First, it needs to use large The machine advances and exits, and the advance and exit actions ...

AI Technical Summary

Problems solved by technology

At present, most of the traditional workbenches for primary support of grooving are passable steel skeleton structures with fixed width and height. This kind of workbench with passable steel skeleton structure has the following disadvantages: First, it needs to use large The machine advances and exits, and the advance and exit actions are slow, and the progress of the work bench entering and exiting the construction work surface is slow, which delays the construction period; second, it can only be used in tunnels that meet the size specifications of the work bench. It is very difficult to complete the construction work according to the technical requirements, resulting in low utilization efficiency of the work platform; third, under the working conditions of the grooving primary support method, the work platform cannot pass through the passable space of the pre-cut grooving equipment, and the organization of construction is not feasible

Images