沿海高渗流砂层斜井冻结参数选择及应用  

Selection and application of the freezing parameters of inclined shaft in coastal high permeability sand layer

作　　者：张富兴 张成涛 王恒 Zhang Fuxing;Zhang Chengtao;Wang Heng(Zhaojin Mining Industry Co.,Ltd.;National Engineering Research Center of Deep Shaft Construction;Tiandi Technology Co.,Ltd.)

机构地区：[1]招金矿业股份有限公司 [2]矿山深井建设技术国家工程研究中心 [3]天地科技股份有限公司

出　　处：《黄金》2022年第8期27-30,48,共5页Gold

基　　金：山东省技术创新项目(202010606024,202010606029)。

摘　　要：针对沿海地区高渗流砂层的特殊条件,汇总了目前井筒冻结施工现状,以瑞海金矿斜井为例,采用理论计算和数值模拟手段进行了冻结壁计算,确定了冻结管直径、冻结孔间距和盐水温度等参数,并结合冻结期间的监测数据验证了冻结壁设计的合理性,确保了斜井冻结的施工安全,为类似地层的井筒冻结提供有益参考。In view of the special conditions of high permeability sand layer in coastal areas.Taking Ruihai inclined shaft as an example,the current status of shaft freezing construction is summarized,and the freezing wall calculation is carried out by means of theoretical calculation and numerical simulation,and the parameters of freezing pipe diameter,of freezing hole spacing and brine temperature are determined.The design of the freezing wall was verified with the monitoring data during the freezing period,which ensured the safety of the freezing construction of the inclined shaft and provided a useful reference for the freezing of shaft in similar strata.

关 键 词：斜井 高渗流 冻结法 冻结壁 温度场 数值模拟 结冰温度 

分 类 号：TD265.3[矿业工程—矿井建设]