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在隧道施工中发生塌方,有时采用小导管超前注浆法来治理更为有效。文章详细的介绍了小导管自身加固原理,并结合具体工程分析了塌方原因、塌方方案的比选、超前小导管的施工。
In the tunnel construction occurred landslides, and sometimes using small-pipe advance grouting method to control more effective. This article introduces the principle of self-reinforcement of small ducts in detail and analyzes the causes of landslides, the comparison and selection of landslides and the construction of small ducts ahead of the project.