通过F1风化槽采用CRD法对初期支护安全性的计算分析

Security Calculation and Analysis of CRD Method Through F1 Weathered Trough to Initial Support

F1风化槽,是翔安隧道施工难度最大的不良地质地段,其围岩含水量大、自稳能力差,采用何种支护方式进行施工,关系到整条隧道的施工安全。通过采用有限元法,对隧道支护参数进行模拟计算,并提出合理建议,被采纳后正在正常有序实施,保证隧道的支护结构稳定,确保施工和结构安全。

The FI weathered trough is the most difficult section in Xiang＇an tunnel construction, where surrounding rock＇s water content is big, self stability is bad, so the supports and protections method relates the entire tunnel＇s construction security. Through the finite element method, it carries on the analog computation to the tunnel supports and protections parameter, and puts forward the reasonable proposal, normal order is implemented after accepted to guarantee that tunnel＇s supports and protections structure is stable, and the construction and the structure are secure.