Telescopic device and telescopic annular tunnel steel arch

Composite support system based on steel-concrete support and shotcrete arch and construction process thereof

Composite support structure, construction system, and method

Protecting trolley and construction method of rock burst prewarning protection system in non-contact tunnel construction

CONSTRUCTION METHOD FOR ENTERING SHALLOW-BURIED MULTI-ARCH TUNNEL UNDER WATER-RICH GEOLOGICAL CONDITIONS

Method of treating tunnel collapse using pavilion support

Rapid construction method for secondary lining of small-section tunnel

Intelligent and flexible steel arch protection device for rockfall and collapse of tunnels

Method for deformation control of large-span tunnel in chlorite schist stratum

TUNNEL SUPPORT INSTALLATION APPARATUS

RIB FOR SUPPORTING AND CONSOLIDATING AN EXCAVATION AND METHOD FOR INSTALLING A STRUCTURE TO SUPPORT AND CONSOLIDATE AN EXCAVATION

TUNNELING OR EXTRACTION MACHINE WITH AN ANCHOR-SETTING DEVICE AND SUPPORT MANIPULATOR OR SUPPORTING DEVICE

Rib for supporting and reinforcing an excavation

Foldable structures for a construction

Impact resistant lagging, method for designing impact resistant lagging, and apparatus for testing impact resistant lagging

Rapidly-deployable lightweight load resisting arch system

Excavation compensation method for tunnelling in deep rock engineering

Tertiary cooperative compression yielding and energy-absorbing support mechanism