Simultaneous investigation of blast induced ground vibration and airblast effects on safety level of

来源 :International Journal of Mining Science and Technology | 被引量 : 0次 | 上传用户:ljmldblh
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The significance of studying, monitoring and predicting blast induced vibration and noise level in mining and civil activities is justified in the capability of imposing damages, sense of uncertainty due to negative psychological impacts on involved personnel and also judicial complaints of local inhabitants in the nearby area. This paper presents achieved results during an investigation carried out at Sungun Copper Mine, Iran. Besides, the research also studied the significance of blast induced ground vibration and airblast on safety aspects of nearby structures, potential risks, frequency analysis, and human response.According to the United States Bureau of Mines(USBM) standard, the attenuation equations were developed using field records. A general frequency analysis and risk evaluation revealed that: 94% of generated frequencies are less than 14 Hz which is within the natural frequency of structures that increases risk of damage. At the end, studies of human response showed destructive effects of the phenomena by ranging between 2.54 and 25.40 mm/s for ground vibrations and by the average value of 110 dB for noise levels which could increase sense of uncertainty among involved employees. The significance of studying, monitoring and predicting blast induced vibration and noise level in mining and civil activities is justified in the capability of imposing damages, sense of uncertainty due to negative psychological impacts on involved personnel and also judicial complaints of local inhabitants in the nearby area This paper presents achieved results in an investigation carried out at Sungun Copper Mine, Iran. Besides, the research also studied the significance of blast induced ground vibration and airblast on safety aspects of nearby structures, potential risks, frequency analysis, and human response. According to the United States Bureau of Mines (USBM) standard, the attenuation equations were developed using field records. A general frequency analysis and risk evaluation revealed that: 94% of generated frequencies are less than 14 Hz which is within the natural frequency of structures that increases risk of damage. At the end, studies of human response showed destruc tive effects of the phenomena by ranging between 2.54 and 25.40 mm / s for ground vibrations and by the average value of 110 dB for noise levels which could increase sense of uncertainty among involved employees.
其他文献
期刊
单纯性肥胖是指机体持续性摄取超过基础代谢及活动所需热量导致脂肪组织堆积、体重高于正常标准的慢性疾病.WHO报告显示,亚洲有2 000万左右0~5岁儿童体重超过正常标准值[1].随
Objective: To explore the personality characteristics of military parachutists and levels of parachute stress on SHG. Methods: Subjects were measured under thre
内容提示:爱情即将修成正果,婚礼已经迫在眉睫,准新人却在婚房装修时闹起离婚--记者走访发现,不少准新人在婚房装修阶段出现感情危机,并自嘲患上“装修狂躁症”。“狂躁”导火索多
为了研究煤储层内的带压解吸规律和不同粒径煤样在解吸过程中的差异,分别对取自沁水盆地晋城矿区寺河煤矿3 #煤层的大块煤样和粒状煤样(粒径2~5 cm)进行了等温吸附实验、常压(
现阶段,我国面临着的环境保护的形势十分严峻,而我国作为一个发展中国家,要想大力发展经济,就应该及时的解决发展过程中存在的环境问题,并将环境保护摆在重要的战略位置,这样
期刊
Objective:To explore the underlying personality and mental defense styles in male patients with peptic ulcer. Methods:Using the Thematic Apperception Test (TAT)
2013年,全球经济整体发展仍不平衡,尽管复苏势头增强,特别是一些发达经济体,如美日经济温和增长,欧元区显现复苏迹象,但世界经济的引擎尚未全部高速转动起来,新兴经济体增速
福建省高速公路是全国最早实现全省一卡通联网收费的省份之一,目前高速公路通车里程已达到1700多公里,规划建成6100多公里高速公路.