白垩系含水软岩地层冻结与强制解冻规律研究
发布时间:2018-10-09 18:57
【摘要】:本文以室内试验、理论分析、数值分析和现场实测为研究手段,对白垩系含水软岩地层冻结与强制解冻理论与应用进行了较为深入、系统的研究。 论文研究了从-5℃到-15℃条件下的白垩系地层的冻土力学和热物理性能。建立了各阶段的温度场数学模型和相应的热传导控制方程以及冻结壁冻融温度场计算模型,给出了冻结壁形成和强制解冻融化过程及规律;分析了影响冻结壁冻融温度场的各个因素及其对温度场的显著性影响,同时对冻结和强制解冻温度场进行了多因素回归分析。通过冻结与强制解冻交互作用下的温度场、冻结壁冻胀以及井壁的受力变形规律研究,得到了单一冻结和冻融交互作用下的温度场、冻结壁冻胀以及井壁受力变形规律。以灵东煤矿冻结和强制解冻为工程背景,进行了白垩系地层冻结信息化施工技术的研究。
[Abstract]:By means of laboratory test, theoretical analysis, numerical analysis and field measurement, the theory and application of freezing and forced thawing in the Cretaceous water-bearing soft rock strata are studied in this paper. The mechanical and thermal properties of frozen soil in Cretaceous strata from -5 鈩,
本文编号:2260419
[Abstract]:By means of laboratory test, theoretical analysis, numerical analysis and field measurement, the theory and application of freezing and forced thawing in the Cretaceous water-bearing soft rock strata are studied in this paper. The mechanical and thermal properties of frozen soil in Cretaceous strata from -5 鈩,
本文编号:2260419
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