By means of analysis of stress disturbed area,and comparing rock cover of weak regolith with stress disturbed area at axis and raising or decreasing,it is easy to determine minimal rock cover.
英
美
- 通過(guò)對應力擾動(dòng)區的分析,以及隧道軸線(xiàn)位置、軸線(xiàn)升高或降低后各剖面應力擾動(dòng)范圍與弱風(fēng)化層厚度的對比,很容易確定廈門(mén)海底隧道的最小頂板厚度;根據應力分布、洞周位移、塑性區、損傷區結果,評價(jià)了海底隧道的開(kāi)挖穩定性。
