摘要
冻结法施工广泛运用隧道联络通道,而在含盐较高的土层中运用冻结法施工与普通土层则有所不同。本文依托上海长江隧道2#联络通道冻结工程,考虑到含盐土层的影响,对双排管冻结公式进行了修正,得出在高含盐地区的冻土帷幕温度场的形成规律,并计算出冻土帷幕厚度及平均温度等指标,进而指导并确保在这种复杂工程中冻结施工的安全。
Artificial ground freezing is widely used in cross passage projects, and its application has some differences in saline clay. Accroding to the 2nd cross passage of the Shanghai Yangtze River Tunnel, the influence of high salinity on the double - pipe freezing formula has been considered for the correction of the formula. According to this modified formula, it gives the law of temperature field formation and the thickness of the frozen zone, the average temperature of the frozen zone are calculated, it can serve as valuable guidance to ensure the safety of artificial ground freezing projects.
出处
《地下空间与工程学报》
CSCD
北大核心
2010年第1期189-192,共4页
Chinese Journal of Underground Space and Engineering
基金
国家自然科学基金资助项目(50578120)
国家高技术研究发展计划(863)项目(2006AA11Z118)
关键词
人工冻结法
冻土帷幕
含盐地层
盾构隧道
联络通道
artificial freezing method
frozen wall
saline soil
shield tunnel
cross passage
