【作者】 汪仁和； 王伟； 陈远坤；

【Author】 WANG Ren-Hen, WANG Wei, CHEN Yuan-kun(Department of Civil Engineering, University of Science and Technology of Anhui,Huainan Anhui 232001; Guobei Mine, Company of Mine of Huaibei, Huaibei Anhui 235000)

【机构】 安徽理工大学土木工程系； 淮北矿业集团公司涡北徽矿；

【摘要】 冻结孔在造孔中总存在一定的偏斜。以工程实际参数为基础,考虑了水的相态变化以及冻结管盐水温度随温差而变化等因素,利用ANSYS有限元软件,对冻结孔有偏斜和无偏斜下冻结壁的形成及其温度场特征进行详细的分析,得出了冻结管偏斜下,冻结孔交圈时间、冻结壁厚度、冻结壁平均温度等关键技术参数.提出冻结壁平均温度计算公式。更多还原

【Abstract】 In the practical freezing construction, there was always some deflection in freezing hole, having a certain warp to designing position. The development of the frozen wall and changing features of the temperature field in frozen wall under the circum.In the practical freezing construction, there was always some deflection in freezing hole, having a certain warp to designing position. The development of the frozen wall and changing features of the temperature field in frozen wall under the circum. stance of deflective freezing pipes were analyzed in detail with the ANSYS Finite Element Calculation Software, thinking over the factors of the phase change of thermal conductivity and specific heat of water, as well as saltwater temperature of freezing pipes varying with temperature difference. It arrived at key technical parameter of circle-crossing time, the thickness and the average temperature of the frozen wall and so on under the circumstance of deflection. Analyzing and comparing the results with the existed experiential formula deeply, the calculated formula and expression were put forward.更多还原