摘要
膨胀岩具有遇水快速膨胀 ,使岩体软化、泥化 ,失水后收缩干裂 ,自身强度降低的特性 ,容易引起隧道已施工完毕的结构出现拱墙错台、拱底起鼓、二衬开裂等多种病害。结合施工实际情况 。
The swelling rock inflates when it absorbs water, and then becomes soft and muddy. It shrinks and splits after losing water. These characteristics may easily cause tunnels diseases like arch wall dislocation, arch bottom heave, and splitting of secondary lining. An introduction is given to tunneling technology for this geological condition.
出处
《铁道标准设计》
2005年第1期22-24,共3页
Railway Standard Design
关键词
公路隧道
膨胀岩
施工技术
highway tunnel
swelling rock
construction technology