Construction method capable of eliminating influences of large-deformation stratum in process of constructing inclined shaft by shield method

• Main Authors: MAO DONGHUI, ZHANG HONGWEI, LI JIANQIANG, ZOU CHUNHUA, LV CHUNLEI, LI FANGLI, LIU SHUSHAN, LEI SHENGXIANG, ZHANG HAIYUN
• Format: Patent
• Language: Chinese; English
• Published: 28.11.2012
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The invention discloses a construction method capable of eliminating influences of a large-deformation stratum in the process of constructing an inclined shaft by a shield method. The construction method comprises the following steps of: (1) performing pre-reinforcement construction on a soft rock stratum in front of a shield machine; (2) performing expanding excavation on the inclined shaft by the shield method in the process of traversing a soft rock large-deformation stratum during shield construction, and reserving a deformation space for a surrounding rock; (3) anchoring a shield lining segment on the surrounding rock; (4) dismounting a capping block of the shield lining segment, and reserving a deformation space for a segment structure; and (5) after the deformation of a soft surrounding rock at the periphery of the segment structure is stabilized, filling a clearance reserved by dismounting the lining segment through concrete post-casting construction to form a final lining structure. By the constructi