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近海竖井冻结天窗成因与治理措施
- 张成涛|徐兴保
- 作者单位：
- 招金矿业股份有限公司|招金矿业股份有限公司
基金项目：
- isnull
详细信息：
- 作者简介：
- 张成涛(1983—),男，山东招远人，工程师，从事矿山建设项目管理工作；山东省招远市温泉路118号，招金矿业?煞萦邢薰荆?65400；E-mail:1056439271@qq.com
- 通讯作者：
- isnull
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Causes and management of frozen skylight in offshore shaft
- English Author：
- Zhaojin Mining Industry Co.,Ltd.|Zhaojin Mining Industry Co.,Ltd.
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
瑞海矿业公司主竖井距海边仅35 m，属于富水软弱地层，表土段采用冻结法施工。受潮汐及周边海水养殖场抽取地下水影响，导致冻结壁容易形成“天窗”。采用冻结器纵向测温技术预测冻结壁开窗部位，采取补打加强冻结孔的措施，加快了冻结壁交圈，效果较好，值得推广。
关键词:
近海竖井；冻结法；冻结壁；天窗；纵向测温技术
Abstract:
The main shaft of Ruihai mining company is only 35 m offshore.The strata are water-rich and weak.The topsoil section is constructed by freezing method.Due to the influence of tide and groundwater extraction from the surrounding sea water farms,skylight is easily formed on the frozen wall.The window opening position of the frozen wall is predicted by adopting the longitudinal temperature measurement technology of the freezer,and the measures of supplementing strengthened freezing holes are adopted,speeding up the crossing circle of the frozen wall.The effect is good and the process is worth promotion.
Keywords:
offshore shaft;freezing method;frozen wall;skylight;longitudinal temperature measurement technology
