Construction method of gas tunnel

• Main Authors: SHI HONGCHAO, TANG BAOQUAN, LIU HAIBO, WANG DONG, ZHAO RUISHENG, HE SHIMEI, SU CHUNSHENG, ZHENG BIN, ZHANG XINGDAO, GUO JIANQIANG
• Format: Patent
• Language: Chinese; English
• Published: 03.02.2023
• 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 discloses a construction method of a gas tunnel, and relates to the technical field of gas tunnel construction. The construction process includes the following steps that firstly, advanced detection is conducted, specifically, an advanced detection hole is formed in a gas tunnel, gas detection is conducted on the position of the advanced detection hole, if gas does not exist, the next step is directly conducted, and if gas exists, the next step can be conducted after the gas is discharged through a drilling pumping and discharging process; 2, drilling and blasting are carried out, after the gas risk is eliminated, the processes of drilling shot holes, charging, connecting lines and detonating can be carried out, and after blasting is completed, the next step can be carried out; and thirdly, safety treatment is carried out, after blasting is completed for a certain time, ventilation and smoke dissipation are carried out in the hole, then blasting slag is conveyed out, and then the next step can b