摘要
风井选择位置地点第四系垂深 95 93m ,总涌水量 10 92m3 /h。原设计选用填砂袋打止浆垫方法凿井 ,实际施工失败。后改为冻结法凿井取得成功 ,阐述了冻结孔布置、冻结时间及冻壁强度及井壁质量影响因素 4个方面的问题。总结了冻结法施工的一些成功因素。
The airshaft was located in the Quartenary Period layer,with a vertical depth of 95.93 m and a total water inrush rate of 10.92 m 3/h.The method of slurry blocking pad of sand bags was used in shaft sinking according to the original design,which was proved to be unsuccessful in practical construction.Later,freezing method was applied instead and achieved success.The problems relating to the influential factors such as freezing hole layout,freezing time,freezing wall strength and wall quality are expounded.Some factors of success in shaft sinking by freezing method are summarized.
出处
《金属矿山》
CAS
北大核心
2003年第5期12-14,40,共4页
Metal Mine
