Embedded constant-resistance energy absorption device

• Main Authors: ZHAO HAIBO, GUO ZHIQIANG, LI YONG, GUO FUSHENG, HE DEYIN, FU MENGXIONG, LIU YANG, DOU HAO, WANG ZISHENG, JIANG YANJUN, JIA HOUXING, ZHI GUANGHUI, WANG CHUANG, LIU SHAOWEI, QIU JIUZHUO
• Format: Patent
• Language: Chinese; English
• Published: 02.03.2021
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The invention relates to an embedded constant-resistance energy absorption device. The embedded constant-resistance energy absorption device comprises an embedded supporting plate, constant-resistanceenergy absorption components, a directional cracking gasket and a pre-tightening nut, wherein the tail of an anchor rod is sleeved with the embedded supporting plate, the constant-resistance energy absorption components are vertically arranged in the embedded supporting plate, the directional cracking gasket is arranged on the lower side of the constant-resistance energy absorption component on the outermost side, the pre-tightening nut is arranged on the lower side of the directional cracking gasket in a pressing manner and is in threaded connection with the anchor rod, the embedded supporting plate can transmit pre-tightening force applied to the anchor rod into surrounding rock and can transmit stress generated by deformation and damage of the surrounding rock to the anchor rod, prefabricated grooves formed in