四川水力发电2026，Vol.42Issue(3)：33-36,4.DOI:10.20196/j.cnki.scslfd.20260307
叶巴滩水电站深卸荷置换洞爆破开挖工艺研究
Study on deep unloading replacement cave blasting excavation technology at Yebatan Hydropower Project
丁品良 1李高慧 1王杰1
作者信息
- 1. 中国水利水电第七工程局有限公司,四川 成都 610213
- 折叠
摘要
Abstract
The construction environment and topography of the deep unloading and replacement tunnel of the Yebatan Hydropower Project Dam are complex.This project mainly involves excavating four types of loose unloading rock masses,with relatively poor surrounding rock quality.During construction,there is a possibility of radioactive harmful gas from radon and rock bursts,requiring enhanced smoke ventilation and protection.During construction,blasting is carried out in the tunnel chamber followed by ventilation and smoke exhaust.The specific process is:first measure and drill holes,then charge explosives for networked detonation,followed by ventilation and smoke exhaust,risk removal support,and finally mucking and bottom cleaning for the next excavation cycle.By strictly controlling blasting parameters and construction quality,such as residual hole rate and particle vibration velocity,the blasting excavation of the deep unloading and replacement tunnel ensures a good overall effect and meets the design requirements.关键词
叶巴滩水电站/置换洞/开挖质量控制/爆破参数Key words
Yebatan Hydropower Project/replacement tunnel/excavation quality control/blasting parameters分类
天文与地球科学引用本文复制引用
丁品良,李高慧,王杰..叶巴滩水电站深卸荷置换洞爆破开挖工艺研究[J].四川水力发电,2026,42(3):33-36,4.
