摘要
在分析浅埋隧道地表砂浆锚杆加固原理和加固效果的基础上,根据普氏地压理论,在松散介质中开挖隧道,在其上方会形成一抛物线形平衡拱,提出浅埋隧道地表砂浆锚杆加固的设计方法,并结合现场试验将结果进行对比分析,对于岩质相对较好的松散围岩,采用钢筋砂浆锚杆进行锚固处理效果明显,文章提出的设计方法是可行的,具有一定的实际应用价值。
On the basis of analysis on reinforcing principle and reinforcement effect of the ground mortar strut of anchor for shallow tunnel, and according to PO Geostatic theory there is a parabola balance arch above the tunnel when excavated in loose medium. A new design method about the ground mortar strut of anchor for shallow tunnel was put forward in this paper. Then its result was compared with that from the spot test. The conclusion obtained from this paper has some practical value for the new method application in practice.
出处
《地下空间与工程学报》
CSCD
2007年第2期242-244,共3页
Chinese Journal of Underground Space and Engineering
关键词
浅埋隧道
锚杆
设计
shallow tunnel
strut of anchor
design
