摘要
由于受工程地质条件、水文地质条件及人为因素等影响,公路隧道洞口施工过程中易发生洞口滑坡。以浙江省杭千高速公路横路头隧道洞口为例,首先从地质因素、水的作用及人为因素三方面分析了滑坡产生的机制,然后结合对边坡的监控量测,分析滑坡产生的过程并针对监测数据进行了动态反馈,同时检验施工单位根据反馈情况采取措施后的效果,最后通过Plaxis有限元计算软件模拟了整个滑坡发生的过程,得到较好效果。由此可见,通过有效的监控动态反馈,能对出现的隧道洞口边坡病害加以控制并对滑坡进行预测,从而大大降低隧道洞口施工中的风险,保证隧道洞口施工安全。
Because of engineering geologic condition, hydrogeological condition and artificial factor, it is easy to result in landslide at tunnel face. Taking the Henglutou tunnel face engineering of the Hangzhou-Qiandaohu Expressway in Zhejiang Province as an example, firstly, the mechanism of landslide is analyzed in three aspects such as geological factor, water effect and human factor. Then, the landslide process and feedback monitoring data are dynamically analyzed： and the effect of construction measures is checked up. Finally, the process of landslide is simulated by FEM of Plaxis. Through effective monitoring dynamic feedback, the slope at tunnel face can be controlled： and landslide can be forecasted. The construction risk of tunnel face could be reduced greatly and construction safety of tunnel face could be assured.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2006年第2期268-274,共7页
Chinese Journal of Rock Mechanics and Engineering
关键词
隧道工程
监控
隧道洞口
滑坡
有限元
tunneling engineering
monitoring
tunnel face
landslide
finite element
