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基于16个网页-相关网页
底导坑 bottom gate ; bottom gangway ; bottom heading
侧壁导坑法 side heading method
平行导坑 parallel heading ; parallel adit
上下导坑法 top and bottom heading method
侧壁导坑 side heading ; wall DaoKeng ; side heading west bank
导坑尺寸 size of heading
超前导坑 advance heading
单侧导坑法 single side heading method ; single side hedriving instructorng method
双侧导坑法 twin-side hedriving instructorng method
在湿法刻蚀诱导坑时，需适当延长刻蚀时间。
中墙轴力随中导坑的扩大而减小，其中中导坑宽度影响较大；
The axial force of middle wall decreases with the increase of the middle heading, the width of middle heading influences greater.
介绍东秦岭特长隧道工程正洞及平行导坑的设计标准、施工技术要点。
Design code and key technical points for main tunnel and parallel heading of East Qinling Super-long Tunnel are introduced.
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