side heading meaning in Chinese
侧壁导坑
Examples
- On the basis of model test , a better construction method under pre - prop for the surrounding rock i , ii , iii , named whole section excavation with heading in moderate degree and that with center heading and center partition first , then with two sides heading , is put forward
在模型试验的基础上，提出了、 、类围岩隧道在预支护下的优化施工方法，即下导洞适度超前全断面开挖与先行中导洞及中隔墙、其次两侧下导洞适度超前全断面开挖。 - Using fem ( finite element method ) , the paper makes mechanical analyses on bench cut method and side heading method , it also makes mechanical analyses on some auxiliary construction methods , such as big pipe - roof protection , horizontal roll - spraying , big and small angle pipe - roof protection and surface grouting
论文采用有限元的分析方法，主要对台阶法、侧壁导坑法进行了力学分析，也选择了大管棚法、水平旋喷法、大小外插角管棚法和地表注浆加固四种辅助工法进行力学分析。 - The paper introduces the progress and the statue quo of tunnel portal construction , discusses the condition to employ full face method , bench cut method , single side heading method and double sides heading method of portal construction , points out advantages and disadvantages of these methods . the order to adopt these methods of single track , double track and tri - track tunnel in shallow - depth , uneven pressure and incompact ground is also advised after compare
讨论了全断面法、台阶法、单侧壁导坑法和双侧壁导坑法在隧道洞口段施工中的使用条件和优缺点，对这四种施工方法从各个方面进行了比选，提出了单线、双线和三线隧道的洞口段处于浅埋、偏压、松散的地层中时各种施工方法选择的先后顺序。