Wulongling tunnel on the Jingzhu Expressway is a dual-arch highway tunnel with a large span, shallow depth, poor geology and uneven ground pressure.
五龙岭隧道由于其特殊的地形地质情况，使该隧道具有大跨、浅埋、软弱不良地质和偏压等四大难点。
The basic operation methods, technical requirements, basic main point, and safety measures which should be adopted in Dawu southern section of Jingzhu Expressway are introduced.
介绍了京珠高速公路大悟南段路基石方爆破的基本操作方法、技术要求和基本要点，以及应采取的安全措施。
The basic operation methods, technical requirements, basic main point, and safety measures which should be adopted in Dawu southern section of Jingzhu Expressway are introduced.
介绍了京珠高速公路大悟南段路基石方爆破的基本操作方法、技术要求和基本要点，以及应采取的安全措施。
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