论文部分内容阅读
一地下工程施工,安全是放在首位的。安全问题处理的好坏,对工程质量和进度有着重大的影响。长期以来,人们在处理地下工程的松散岩块时,往往采取钢、木支撑加固的方法。本世纪初,美国由于采用机械化掘进,发展了一种适应高速度掘进的新型支护,即锚杆加固围岩的技术,并且在“圣·约瑟夫”(St·Joseph)首次试验成功[1]。随后在世界各国地下工程进行了推广。我国解放后,对锚杆支护围岩,也有计划地在一部份地下工程上开展试验研究工作。五十年代后期水利水电工程把锚杆支护作为加固围岩的一种手段,开展了研究和推广。到目前为止,锚杆已经普遍应用于地下工程的支护中。
An underground construction, safety is in the first place. The quality of the project has a significant impact on the safety and quality of the project. For a long time, people often adopt the method of steel and wood support to deal with the loose rocks of underground works. At the beginning of this century, due to the mechanized excavation, the United States developed a new type of supporting technology adapted to high-speed heading, that is, the technique of rock bolting to reinforce the surrounding rock. After the first successful experiment by St Joseph, 1]. Subsequent underground projects in all countries in the world were promoted. After the liberation of our country, we carried out experimental studies on some of the underground works on the rock bolts supporting the rock. In the late 1950’s, water conservancy and hydropower projects carried out researches and popularization of rock bolt support as a means of reinforcing surrounding rock. To date, anchors have been commonly used in the subsurface support.