初砌隧洞内钻探与取样方法探讨

目前在工程勘探中 ,钻孔内取样已有较完善的方法。但是 ,在衬砌隧洞内钻探和取样国内尚未有确实可行的方法。本文主要依据在山西万家寨引黄工程总干线隧洞内沿洞顶拱、底拱和侧拱等方面进行钻探与取样的实际工作情况 ,总结出一套较为可行的钻探与取样方法 ,并论述了该方法的可靠性和实用性 ,为在隧洞内钻探。

Here in China in the field of engineering exploration we do not have feasible m ethods for drilling and sampling in lining tunnel.A set of drilling and sam pling methods is summ arized herein based on the practical project carried in Shanxi province.The reliability and practicality of those methods are also described to provide successful experience for drilling and sampling in tunnel.