1) grotto's intersection

洞室交叉部位
2) cross section of cave

洞室交叉
3) tunnels crossing in space

立体交叉洞室群
4) intersection of the two tunnels

双洞交叉
5) intersecting tunnel

交叉洞
1.
There is a weak intercalation going through the top of intersecting tunnels located in the layered rock mass at a distance of the tunnel diameter,it is not only difficult to be backfilled after excavation but also to be anchored to sustain stability when excavating intersecting tunnels.
在近水平层状的岩体开挖交叉洞,距洞顶1倍洞径的软弱夹层从交叉洞段顶部穿过,该软弱夹层既不易挖掉后回填,又难以锚固,针对这一实际工程,为研究软弱夹层对交叉洞段洞室围岩稳定的影响,应用从奥地利引进的大型岩土工程数值仿真分析软件FINAL,对交叉洞开挖进行了跟踪施工过程的数值模拟,定量对比了软弱夹层取不同强度参数和假设无软弱夹层对围岩的影响,分析了开挖过程中软弱夹层的张开情况和对围岩稳定的影响,最后结合工程经验修改了支护方案,并对比了不同方案的支护效果。
6) cavern displacement

洞室位移
1.
The influences of earthquake amplitudes, frequency and duration time on the different rock cavern displacements are primarily studied by using FLAG3D.
利用FLAC3D初步分析了地震荷载作用下地震波振幅、频率及持续时间对地下岩体洞室位移特征的影响。
补充资料:人脑的功能分化猫小脑不同部位的兴奋引起身体相应部位的活动
李瑞端绘
[图]

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