对修建强挤压地下洞室的改革意见

OPINIONS ON REFORM OF CONSTRUCTION OF GROUND CAVERN UNDER STRONG SQUEEZING

本文是在总结了世界上四座强挤压地下洞室的修建经验 ,其中主要是我国家竹箐隧道的经验教训后提出的改革意见。包函了设计、施工及工期等方面的改革意见。文中特别提出的在地质上识别强挤压的标准 ,从而进一步阐明了卡斯特纳公式在识别中的运用 ;在弄清地质情况的基础上 ,批判了用刺猬式双层径向锚杆不恰当的支护方法 ;从而提出了先支后挖的建议。

Based on the summary of the experience in construction of four ground caverns under strong squeezing in the world, this paper proposes the opinions on the reform of construction of ground cavern under strong squeezing, including design, construction and schedule, especially proposes the identification standard for strong squeezing in geology, demonstrates the application of Caster Formula in identification, criticizes the improper method with hedgehog double-layer radial anchor rod, and sequentially proposes the method with first supporting and then excavation.