【摘要】 以山西潞安集团和顺李阳煤业有限公司大水位落差深井止水修复方案及实施效果为工程实例,对该工程先后实施的管内注浆法、管外注浆法、衬管固井法、同径水泥架桥法、泄压通桥法等止水修复方案进行了详细分析,总结了其成功的经验,可为类似旧井修复工程或新井施工工程提供借鉴和指导。更多还原

【Abstract】 With the engineering case of waterstop scheme for a deep well with large water level difference and the implementation effect,the detailed analysis is made on in-tube grouting,out-tube grouting,liner tube cementing,the same diameter cement bridging and pressure relief drilling methods and the experience is summarized.更多还原