冻结孔排间距对冻结效果的影响研究  

Study on Row Space Distance of Freezing Holes Affected to Freezing Effect

作　　者：张松 黄宝龙 温汉宏 韩玉福 孙佳[1] ZHANG Song;HUANG Baolong;WEN Hanhong;HAN Yufu;SUN Jia(Beijing China Coal Mine Engineering Company Limited,Beijing 100013,China;Province and Ministry Joint Established National Key Lab of Structure Mechanics Behave and System Safety in Traffic Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;School of Civil Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;Mine Construction Branch,China Coal Research Institute,Beijing 100013,China)

机构地区：[1]北京中煤矿山工程有限公司,北京100013 [2]石家庄铁道大学省部共建交通工程结构力学行为与系统安全国家重点实验室,河北石家庄050043 [3]石家庄铁道大学土木工程学院,河北石家庄050043 [4]煤炭科学研究总院建井研究分院,北京100013

出　　处：《建井技术》2021年第2期29-32,共4页Mine Construction Technology

基　　金：石家庄铁道大学省部共建交通工程结构力学行为与系统安全国家重点实验室自主课题(ZZ2020-07);天地科技股份有限公司科技创新创业资金专项项目青年基金项目(2019-TD-QN009)。

摘　　要：为了解冻结孔布置形式对冻结效果的影响,提高冷量利用效率,并保证工程安全,通过构建二维温度场数值计算模型,对冻结设计参数进行了数值模拟研究。结果表明:①冻结孔排距是影响温度场的主要因素;冻结孔间距较小时,对温度场的影响可以忽略不计。②冻结孔排间位置温度与冻结孔排距成近似线性关系。同时给出了冻结设计的建议顺序。In order to understand the layout model of the freezing holes affected to the freezing effect,to improve the utilization rate of the refrigeration and to ensure the engineering safety,with the establishment of the numerical calculation model of the 2D temperature field,a numerical simulation study on the freezing design parameters was conducted.The results showed that①the row space distance was the main factor affected to the temperature field.When the space between the freezing holes was small,the influence to the temperature field could be negligible.②The location temperature between the freezing hole rows was in an approximate linear relationship to the row distance of the freezing holes.A proposed sequence of the freezing design was provided.

关 键 词：人工冻结法 冻结孔 排距 间距 温度场 

分 类 号：TD265.31[矿业工程—矿井建设]