rock excavation

It was shown that the surrounding rock of the tunnel constructed by double side-wall heading excavation method would unavoidably be damaged in a certain degree because of repeating blasting, especially the interlaid rock wall in tunnel groups with closely-spaced.

研究表明：推进式往复爆破作业的双侧壁导坑法开挖的隧道必然导致围岩产生一定程度的损伤、破坏，尤其是小净距隧道间的中夹岩岩墙。

The construction of Tianchi Railway Tunnel features the rapid construction with self-developed complete sets of equipment for single-track tunnel and the excavation of soft surrounding rock section by adding an access tunnel.

天池隧道施工有两个特点，一是施工中运用了自行开发的铁路单线隧道配套设备进行施工；

Smooth blasting of slope excavation would inevitably bring on damnification of slope remaining rock mass.

边坡开挖爆破必然造成边坡保留岩体的损伤.

An integrated intelligent method for bolt-shotcrete support design in underground rock excavation is presented.

提出了一种可用于岩石地下工程锚喷支护设计的人工智能综合设计方法.

And based on the rock pressure theory, applying the ANSYS software and engineering examples, the excavation procedure of the top heading of the underground powerhouses is studied, and the recommendable project of the top-heading excavation is made.

并且基于M.M.普罗托奇雅科洛夫（普氏）的山岩压力理论，并利用有限元计算软件ANSYS和工程实例，研究了厂房顶拱层的开挖程序问题，给出了顶拱开挖方法的推荐方案。

When the excavation reached the rock face, drilling and blasting Methods: Would be used.

当开凿到岩石面时, 就要使用钻孔和爆石方法.