Vibration characteristics, attenuation law and prediction method in the near field of tunnel blasting

衰减 爆炸物 振动 叠加原理 岩石爆破 航程(航空) 面子(社会学概念) 岩土工程 结构工程 领域(数学) 自由场 材料科学 地质学 声学 工程类 光学 物理 复合材料 数学 有机化学 社会学 化学 量子力学 纯数学 社会科学
作者
Xiaoming Guan,Huawei Xu,Hongxian Fu,Wenjun Zhang,Pengfei Li,Hao Ding,Ke Yu,Sulei Zhang
出处
期刊:Case Studies in Construction Materials [Elsevier]
卷期号:19: e02662-e02662 被引量:1
标识
DOI:10.1016/j.cscm.2023.e02662
摘要

Vibration induced by near-field tunnel blasting can easily damage the surrounding rockmass. The vibration response, damage characteristics and attenuation law in front and rear of the tunnel face were studied under different types of holes blasting. A new prediction method for the near field PPV was proposed based on the far field monitoring data. The results showed that the maximum PPV of the surrounding rockmass near the tunnel face was generated by the peripheral holes blasting, and the propagation distance was the key influencing factor. In contrast, the maximum PPV away from the tunnel face was generated by cutting holes blasting, and the conditions of blasting free face and the charge weight had a greater influence than the propagation distance. Due to the cavity amplification effect of the excavated tunnel behind the tunnel face within a certain range of 2-6 m, the blasting seismic wave produces superposition in the vault behind the tunnel face. The vault PPV behind the tunnel face attenuated rapidly in the range of 0-2 m, then increased slightly in the range of 2-6 m, and then decreased slowly with the increase of propagation distance. By introducing the amplification coefficient, a modified formula was proposed to predict the near field PPV using the far-field monitoring data, which had effectively improved the prediction accuracy.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
2秒前
wrr发布了新的文献求助10
2秒前
3秒前
6秒前
6秒前
7秒前
8秒前
大模型应助白vv采纳,获得10
9秒前
小竹子发布了新的文献求助10
11秒前
Katie发布了新的文献求助10
11秒前
玛卡巴卡发布了新的文献求助10
13秒前
Akim应助iii采纳,获得10
14秒前
wrr完成签到,获得积分10
15秒前
16秒前
17秒前
科研通AI5应助一碗冷的粥采纳,获得10
18秒前
董浩发布了新的文献求助10
20秒前
21秒前
叶子完成签到,获得积分10
22秒前
mengdi完成签到 ,获得积分10
22秒前
22秒前
22秒前
22秒前
小治发布了新的文献求助10
23秒前
白vv发布了新的文献求助10
23秒前
文献求助发布了新的文献求助20
24秒前
司空豁应助爱吃鱼的猫采纳,获得10
24秒前
kuoping完成签到,获得积分10
25秒前
科研通AI2S应助哈哈采纳,获得10
25秒前
passby完成签到,获得积分10
25秒前
康康XY发布了新的文献求助10
25秒前
英俊的铭应助佳佳采纳,获得10
27秒前
27秒前
Singularity发布了新的文献求助10
28秒前
SRsora发布了新的文献求助10
28秒前
28秒前
sevenseven完成签到,获得积分10
28秒前
Hello应助阿珩采纳,获得10
29秒前
发嗲的雨筠完成签到,获得积分10
30秒前
30秒前
高分求助中
Continuum Thermodynamics and Material Modelling 3000
Production Logging: Theoretical and Interpretive Elements 2700
Les Mantodea de Guyane Insecta, Polyneoptera 1000
Structural Load Modelling and Combination for Performance and Safety Evaluation 1000
Conference Record, IAS Annual Meeting 1977 820
電気学会論文誌D(産業応用部門誌), 141 巻, 11 号 510
Typology of Conditional Constructions 500
热门求助领域 (近24小时)
化学 材料科学 生物 医学 工程类 有机化学 生物化学 物理 纳米技术 计算机科学 内科学 化学工程 复合材料 基因 遗传学 物理化学 催化作用 量子力学 光电子学 冶金
热门帖子
关注 科研通微信公众号,转发送积分 3570542
求助须知:如何正确求助?哪些是违规求助? 3141299
关于积分的说明 9442455
捐赠科研通 2842608
什么是DOI,文献DOI怎么找? 1562356
邀请新用户注册赠送积分活动 731072
科研通“疑难数据库(出版商)”最低求助积分说明 718272