临近居民建筑隧道爆破设计施工关键技术分析

Analysis of Key Techniques for Blasting Design and Construction of Tunnels Adjacent to Residential Buildings

本文以西延线-七贤岭隧道建设工程为依托,分析介绍了临近宏都峰景小区爆破施工方案,并通过理论计算优化了爆破施工参数,结果表明:临近宏都峰景小区隧道爆破可按以下方案施工:进口爆破作业面—K7+875及隧道明洞爆破作业面—K7+915按台阶法每循环爆破进尺3榀施工,K7+875-K7+885及K7+905-K7+915按台阶法每循环爆破进尺2榀施工,K7+885-K7+905按照中隔壁法每循环爆破进尺2榀施工,研究结论能够为今后相关的工程项目建造时提供参照与借鉴。

Based on the construction project of the West Extension Line-Qixianling Tunnel,this paper analyzes and introduces the blasting construction scheme of the nearby Hongdu Fengjing Community,and optimizes the blasting construction parameters through theoretical calculation,and the results show that the tunnel blasting of the nearby Hongdu Fengjing Community can be constructed according to the following schemes:import blasting surface-K7+875 and tunnel open hole blasting surface-K7+915 per cycle blasting inch 3 meters according to the step method,K7+875-K7+885 and K7+905-K7+915 according to the step method per cycle blasting foot 2 construction,K7+885-K7+905 in accordance with the middle next door method per cycle blasting foot 2 pound construction,the research conclusions can provide reference for the construction of related engineering projects in the future.