Mixed TBM (Tunnel Boring Machine) with multiple-boring mode and tunnel supporting mode

Abstract

The invention discloses tunnel construction equipment, in particular a mixed TBM (Tunnel Boring Machine) with a multiple-boring mode, which is suitable for sludge, clay, sand, grit, decomposed rock, hard rock and composite transition stratum. According to the invention, three modes of an earth pressure balance mode, a shield open mode and a TBM mode are adopted for construction according to different stratum geological conditions and construction tunnel supporting requirements; a deslagging mode is that a spiral conveyer or a TBM belt conveyor is adopted for deslagging; and simultaneously, a supporting mode can adopt a finned-tube lining or flexible post-supporting mode. The mixed TBM disclosed by the invention has very strong geological adaptability, is especially suitable for soft, hard and complex stratal construction of a mains underground engineering, and simultaneously, has the advantages that the whole machine has low manufacture cost, the mode conversion is relatively simple, the interference to mating construction is small, the control is convenient, the equipment manufacture cost is low, the economic property and practicability are achieved, and the use requirements of the flexible supporting mode of the construction can be met.

Description

technical field [0001] The invention belongs to the field of shield tunneling and TBM engineering technology, and specifically relates to a hybrid TBM tunnel construction engineering equipment, which is not only suitable for single formations such as soft soil, soft rock, and hard rock, but also suitable for soft and hard alternate formations, Composite transitional strata, tunnel engineering construction equipment with dual excavation modes, multiple slag discharge methods, and flexible support methods. Background technique [0002] In China, known as the World Geological Museum, stratum engineering and hydrogeology are complex. For many underground municipal projects, the construction interval is dominated by one kind of geology, and there are other transitional strata and complex stratum geology. The shield method has become the preferred construction method in urban underground engineering construction because of its advantages such as small impact on the surrounding env...

AI Technical Summary

Problems solved by technology

The traditional EPB shield and TBM, which only have a relatively single stratum adaptability and a single tunnel wall support method, can no longer meet the modern construction requirements of complex strata.

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