Freezing construction method for full-section water-rich sand layer connecting channel

• Main Authors: HUI HAIPENG, GOU ZHIWEN, XU ZHUOYA, SONG ZHONGYU, LUO SHILEI, LIU RONG, PENG LIAN, WEN GUANG, ZHANG SIJUN, JIANG WEI, LIU CHAO
• Format: Patent
• Language: Chinese; English
• Published: 29.09.2023
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The invention relates to the technical field of contact channel freezing construction, and discloses a full-section water-rich sand layer contact channel freezing construction method, which comprises the following steps of: performing preparation before construction, and preparing construction equipment; detailed engineering investigation and geological survey are carried out, and important parameters such as the property of a sand layer and the water flow condition are known; a freezing construction scheme for the geological conditions is designed and arranged; freezing pipelines are arranged, and a series of freezing pipelines are arranged in the sand layer according to the design scheme; injecting a coolant, and injecting the coolant into the sand layer through a freezing pipeline; and during monitoring during construction, the temperature and the cooling state of the freezing zone are continuously monitored in the construction process, and the safety of a working area is ensured. According to the freezing