central pilot tunneling method中央导洞法

drilling pilot shaft method钻孔导井法

unilateral pilot tunnel method单侧壁导坑法

Pilot systems method试点过渡法;试点过渡方式

three-pilot drift method三导洞法

raise-boring machine pilot drifting method反井钻机导硐施工法

two-step side-pilot tunneling method两阶段侧壁导坑法

side wall pilot method侧壁导洞法

pilot-tunneling method导洞法