浅埋偏压小净距高速公路隧道施工难点及处理措施

Difficulties and Treatment Measures in the Construction of Expressway Tunnel with Shallow Buried Bias Pressure and Small Net Distance

湖南省益娄高速公路竹园隧道属于典型的浅埋偏压小净距隧道,需要根据现场的地质勘测结果及相关反馈数据进行方案的调整。基于此,论文简单概述此工程和现场情况,并分析此工程的施工难点,着重结合偏压等问题给出处理方案,涉及人员经验不足、安全防护、净距过短以及沉降速度等5个方面,旨在抑制现场不利施工条件,确保隧道施工可以有序安全进行。

Zhuyuan Tunnel of Yiluo Expressway in Hunan Province belongs to a typical shallow buried bias tunnel with small net distance,which needs to be adjusted according to the geological survey results and relevant feedback data.Based on this,this paper briefly summarizes the situation of the project and the site,analyzes the construction difficulties of the project,and gives the treatment scheme in combination with the problems of bias pressure,which involves five aspects:lack of personnel experience,safety protection,short net distance and settlement speed,et al..The aim is to restrain the unfavorable construction conditions and ensure that the tunnel construction can be carried out in an orderly and safe manner.