连拱隧道洞口边仰坡稳定的监测与控制

Monitoring and Controlling for Stability of Face-upward Slope of Joint Arch Tunnel

随着我国公路隧道的发展,连拱隧道的应用也越来越厂泛。连拱隧道一般应用于中短隧道,常常与边坡结合在一起。由于岩土体复杂,岩土力学尚具有半经验半理论的特点,故有必要对连拱隧道洞口边仰坡的稳定性进行监测与分析,并通过分析结果对其进行控制。

With development of highway tunnel ,joint arch tunnels are applied widely. Joint tunnel is a kind of short tunnel ,which is often used with slope . But for a long time the stability of slope is guaranteed by the design work of slope, and rock mechanics is of half - theoretic and half - experience trait due to the complexity of rock mass, so it is necessary to do monitoring and analysising work to stability of face - upward slope of joint arch tunnel and stability of slope is controlled well through the analysised results. In this pa per monitoring plan and controlled measure will be described in detail and importance of monitoring is approved through analysis of example.