Technology of rapid excavation of contact roadway in goaf

• Main Authors: ZHAO BAIGAO, SHI GANG, JI GUANGYING, FANG ZHIMING, FENG TANTAN, ZHANG WEI, GAO JINGDONG, FAN JIHONG
• Format: Patent
• Language: Chinese; English
• Published: 15.01.2019
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS; SHAFTS; TUNNELS

The invention relates to the technical field of roadway excavation and support, in particular to a technology of rapid excavation of a contact roadway in a goaf, which comprises four steps of groutingto a roof stratum, supporting of a plurality of steel sheds, breaking of large rock blocks in the roadway and continuous milling and digging and skimming. In view of the characteristics of broken surrounding rock in the goaf and poor roof stability of a working face, a rapid excavation technology under a broken surrounding rock condition is provided for excavation of the contact roadway, the flexural effect and the buckling effect of an unstable roof can be greatly reduced through roof grouting, the stress state of roof is improved, the roof stability is improved, safety guarantee is providedfor erection of the steel shed, and the technology in the invention has the advantages of simplicity, low waste discharge, low cost and good safety. 本发明涉及巷道掘进及支护技术领域，具体涉及种采空区内快速掘进联络巷的工艺，该工艺包括向顶板岩层注浆、支设若干钢棚、破碎巷道内大块岩块和连续铣挖扒料四个步