张戈平
ZHANG Ge-ping(Hebei Water Conservancy Engineering Bureau

• 1:河北省水利工程局

摘要(Abstract)：

面板堆石坝是当今世界发展的主要坝型之一。为节省投资,近年来利用枢纽建筑物的开挖弃料进行坝体石碴填筑,因此对控制爆破产出的石碴级配料、尤其是大块率提出严格要求。通过西大洋水库正常溢洪道深孔梯段爆破的大量工程实践,从施工工艺、爆破参数、工程地质等方面分析了爆破试验大块率偏高的原因,并提出了降低大块率的具体措施。实践证明,只要采取行之有效的技术措施,完全可以控制大块率。
The kneading board rock-fill dam is now one of the predominant dams in the world.For saving investment,the abandoned material from excavation of hinge buildings was used for dam reclamation in recent years,and therefore,the requirements for the produced ballast from controlled blasting are upgraded in terms of the fragment size,especially for the frequency of boulder occurrence.Based on the practice in the project of conducting the deep hole bench blasting of the Xidayang reservoir normal spillway,the paper,in view of construction processes,blasting parameters,engineering geology,analyzed the reason for a high level frequency of boulder occurrence in blasting test,and proposed some concrete measures of reducing the boulder frequency.The practice proved that the high level frequency of boulder occurrence could be perfectly controlled as long as effective technical measures are taken.

关键词(KeyWords)： 深孔梯段爆破;堆石坝;大块率;爆破参数优化
Deep-hole bench blasting;Rock-fill dam;Frequency of boulder occurrence;Blasting parameter optimization

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 张戈平
ZHANG Ge-ping(Hebei Water Conservancy Engineering Bureau

参考文献(References)：

• (1)吴敏,陈学云.采用大孔径深孔梯段爆破开采堆石料[J].水力发电,1995(5):14-15.
• (2)陈同俭,杨建文.洪家渡水电站面板堆石坝坝料开采爆破[J].人民长江,2004(7):3-5.
• (3)李保林,刘治峰,郭永为,张永哲.溢洪道开挖爆破块度级配控制研究[J].工程爆破,2004(1):41~43.
• (4)张翠兵,王中黔,陈付生.降低深孔台阶爆破大块率的措施[A].工程爆破文集(第七辑)[C].乌鲁木齐:新疆青少年出版社,2001.
• (5)杨年华,张志毅.大区多排深孔微差爆破技术的应用和体会[A].工程爆破文集(第七辑)[C].乌鲁木齐:新疆青少年出版社,2001.
• (6)中国水利学会施工专业委员会爆破学组.水工建筑物岩石基础开挖工程施工技术规范[S].北京:中国水利水电出版社,1994.
• (7)水利电力部水利水电建设总局.水利水电施工组织设计手册(第二卷)[M].北京:水利电力出版社,1990.
• (8)中华人民共和国标准.爆破安全规程(GB6722-2003)[S].北京:中国标准出版社,2004.
• (9)顾毅成.爆破工程施工与安全[M].北京:冶金工业出版社,2004.
• (10)傅海峰.利用软岩修筑面板堆石坝爆破开采技术试验研究[A].第三届北京工程爆破学术会议论文集[C].北京,2003:204~209.