【作者】 高文学； 刘运通； 万元林； 刘殿书；

【Author】 GAOWen-xue, LIU Yun-tong, WAN Yuan-lin, LIU Dian-shu (Beijing University of Technology, Beijing 100022, China; China University of Ming and Technology, Beijing 100083, China)

【机构】 北京工业大学； 中国矿业大学；

【摘要】 沟槽爆破不同于一般台阶爆破,其具有特殊性和复杂性。爆破设计和施工应在充分了解沟槽岩体的工程地质特征和周边环境的条件下,制定切实可行的爆破施工方案和有效的防护措施。基于北京市张坊水源应急供水工程的特点,探讨了沟槽石方爆破的设计原则和爆破施工方案;提出了沟槽控制爆破炮孔布置形式、分段装药结构、微差起爆技术以及控制爆破振动和飞石的安全措施。在实际工程中应用上述方法,获得了理想的爆破效果。更多还原

【Abstract】 Ditching blasting differs from common bench blasting, but it has its specialty and complexity. While in the course of blasting design and construction, the rock geology characteristic and the environment should be sufficiently realized, and the scheme of blasting and valid protection measure should be established. According to the characteristic of Zhangfang emergency water engineering of Beijing, this paper introduces the principle of ditching blasting and the scheme of blasting construction. Relative technique measures of ditching controlling blasting are put forward, such as the pattern of hole disposal, structure of stage charge, techniques of millisecond blasting, measures of reducing vibration and controlling blasting flying rock. The methods above are used in practice engineering and ideal achievement is obtained.更多还原