公开(公告)号：US20170218757A1

公开(公告)日：2017-08-03

申请号：US15515475

申请日：2015-05-07

Applicant: SHANDONG UNIVERSITY

Inventor： Shucai LI ,  Bin LIU ,  Xinji XU ,  Jie SONG ,  Lichao NIE ,  Lei YANG ,  Chunjin LIN

IPC: E21D9/10 ,  G01V1/04 ,  E21D9/00 ,  G01V1/16

Abstract: A rock breaking seismic source and active source three-dimensional seismic combined detection system uses a tunnel boring machine for three-dimensional seismic combined detection by active seismic source and rock breaking seismic source methods. Long-distance advanced prediction and position recognition of a geological anomalous body are realized using the active source seismic method. Machine construction is adjusted and optimized according to the detection result; real-time short-distance accurate prediction of the body is realized using the cutter head rock breaking vibration having weak energy but containing a high proportion of transverse wave components as seismic sources and adopting an unconventional rock breaking seismic source seism recording and handling method. An area surrounding rock quality to be excavated is represented and assessed. A comprehensive judgment is made to the geological condition in front of the working face with the results of active source and rock breaking seismic source three-dimensional seismic advanced detection.

公开(公告)号：US20190024460A1

公开(公告)日：2019-01-24

申请号：US15757681

申请日：2016-07-11

Applicant: SHANDONG UNIVERSITY

Inventor： Shucai LI ,  Qingsong ZHANG ,  Guangming PAN ,  Rentai LIU ,  Xiao ZHANG ,  Lei YANG ,  Kai WANG ,  Zhaofeng LI ,  Haitong SUI ,  Teng YANG ,  Chunguo LIU

IPC: E21B10/60 ,  E21B33/13 ,  E02D3/12

Abstract: An anti-collapse jet grouting drill bit with bi-directional rib wings, and a grouting consolidation including: a grouting pump connected to a high-pressure pipeline, which connects to an underground drill rig; an outer flat drill rod, connected with the underground drill rig; a sealing device, sheathed on the outer flat drill rod at the orifice of a drill hole, ensuring the outer flat drill rod is sealed with the orifice of the drill hole which connects to a jet grouting drill bit with bi-directional rib wings. The grouting pump jets slurry into the drill hole in a static osmotic manner through the jet rib wing drill bit, while the underground jet drill rig is rotated by the force of outer flat drill rod. The rotation of the jet slurry and the rib wings, repairs the hole wall by cutting chippings or squeezing the chippings back into the hole wall.