土工基础

›› 2016, Vol. 30 ›› Issue (4): 440-442.

• 工程实录 • 上一篇    下一篇

超深孔预裂爆破在水工竖井开挖施工中的应用

费波涛1，徐 坤2   

  1. （1.葛洲坝集团第一工程有限公司，湖北宜昌 443000；2.武汉理工大学 道路桥梁与结构工程湖北省重点实验室，武汉 430070 ）
  • 收稿日期:2016-06-13 出版日期:2016-08-20 发布日期:2016-08-26
  • 作者简介:费波涛（1983-），男，工程师，研究方向为水利水电工程施工技术与管理。

Application of the Deep Borehole Pre-Splitting Blasting in the Excavation of Vertical Shaft for a Hydraulic Structure

FEI Botao1, XU Kun2   

  1. (1.The First Engineering Company, China Gezhouba Group Co., Yichang, 443000;
    2.Hubei Key Laboratory for Roadway Bridge and Structural Engineering, Wuhan University of Science and Technology, Wuhan 430070)
  • Received:2016-06-13 Online:2016-08-20 Published:2016-08-26

摘要： 在猴子岩水电站泄洪放空洞事故闸门井竖井开挖施工中，通过30 m深超深孔一次预裂爆破，工程质量达到了设计技术要求，同时保证了工程施工安全、确保了工程施工进度，验证了超深孔预裂爆破在竖井开挖施工中可以取得较好效果，给同类工程提供了参考和借鉴。

关键词: 预裂爆破, 超深孔, 水工竖井, 开挖, 猴子岩水电站

Abstract: This paper presents a case history of application of the 30 meters deep borehole pre-splitting blasting technique in the excavation of a vertical shaft for the flood discharge tunnel in Houziyan Hydroelectricity Station. The quality requirements for the excavation were achieved; the construction safety as well as the construction schedule were able to be met. This deep borehole pre-splitting blasting is proved to be a viable way for the vertical shaft excavation.

Key words: Pre-Splitting Blasting, Deep Boreholes, Vertical Shaft for Hydraulic Structures, Construction Excavations, Houziyang Hydroelectricity Station