引黄入焦引水干渠工程穿越沁河方案选型分析

为选择最佳的引黄入焦引水干渠工程穿越沁河方案,通过分析穿越沁河的工程建设条件、穿越建筑物选型因素及主要穿越型式,提出了引水干渠穿越沁河技术上可行的明挖法、顶管法和定向钻法三种穿越方案;通过进一步比较分析,确定定向钻方案为最佳穿越沁河方案。研究结果不仅为断面完整性不允许破坏的河渠道穿越设计提供借鉴,也为沁河下游河段类似穿越工程设计提供借鉴。

Analysis of Scheme Selection for Crossing Qinhe River by Main Diversion Channel from Yellow River to Jiaozuo City

In order to select the best scheme crossing Qinhe River by main diversion channel from the Yellow River to Jiaozuo City, this paper analyzes the main crossing types, selection factors, and construction condition for main diversion channel crossing Qinhe River. And then three kinds of technical feasible crossing schemes are put forward, namely open-cut method, pipe-jacking, and horizontal direction drilling. By further comparison and analysis, horizontal direction drilling shall be adopted as the best crossing scheme. The research results provide reference not only for design of crossing projects of not destroying the whole channel section, but also for similar crossing projects at the downstream of Qinhe River.