基于能量原理的大规模地下爆炸不可逆位移计算方法

王明洋; 李杰; 邱艳宇; 陈伟

doi:10.11883/1001-1455(2017)04-0685-07

基于能量原理的大规模地下爆炸不可逆位移计算方法

doi: 10.11883/1001-1455(2017)04-0685-07

王明洋^{1, 2},
李杰^{1, 2, ,},
邱艳宇^{1, 2},
陈伟³

1.
解放军理工大学爆炸冲击防灾减灾国家重点实验室，江苏南京 210007
2.
南京理工大学机械工程学院，江苏南京 210094
3.
国防工程标准化办公室, 北京 100850

基金项目:

国家自然科学基金项目 51527810

国家自然科学基金项目 51679249

详细信息

作者简介:
王明洋(1966—)，男，博士，教授，博士生导师

通讯作者:
李杰, lijierf@163.com

中图分类号: O381
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出版历程
- 收稿日期: 2015-09-23
- 修回日期: 2016-01-17
- 刊出日期: 2017-07-25

A calculation method for irreversible deformation region radius under large-scale underground explosion based on law of energy

Wang Mingyang^{1, 2},
Li Jie^{1, 2
, ,},
Qiu Yanyu^{1, 2},
Chen Wei³

1.
State Key Laboratory of Explosion and Impact and Disaster Prevention and Mitigation, PLA University of Science and Technology, Nanjing 210007, Jiangsu, China
2.
School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
3.
Defence Engineering Standardization Office, Beijing 100850, China

摘要

摘要: 岩体是复杂的等级构造地质体，在高地应力作用下，因摩擦和粘结作用，内部封存能量，可看作具有内部能量源和能量汇的介质。基于岩体块系构造, 对岩体在扰动下的运动积分和等效动能进行分析，提出了在高地应力赋存环境中岩体受爆炸地震波扰动下的等效地冲击能量因子，并给出了大规模地下爆炸诱发远区局部不可逆范围的计算公式。与G.G.Kocharyan等基于块体运动分析给出的计算公式比较表明，本文中提出的计算理论物理过程清晰，更具有适用性。
- 大规模地下爆炸 /
- 岩体块系构造 /
- 等效平均动能 /
- 局部不可逆变形
Abstract: Being of a complex hierarchical structure with energy closed in it for its intrinsic friction and cohesion, the rock mass can be regarded as a medium with the properties of internal energy source and energy collection. The equivalent impact energy factor corresponding to the rock mass under high in situ stress subjected to the weak disturbance was presented, and the calculation method of the irreversible deformation region radius under the large-scale underground explosion was deduced. Compared with the method by Kocharyan G G, et al, the calculation method presented in this paper has a clearer physical principle and wider application.
- large-scale underground explosion /
- block hierarchy structure /
- equivalent average kinetic energy /
- local irreversible deformation

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图 1 撞击侵彻的局部破坏效应

Figure 1. Localized phenomenon by impaction

下载: 全尺寸图片幻灯片

图 2 卸荷扰动下深部工程围岩的的灾变

Figure 2. Catastrophe of high-stressed rock mass under disturbance

下载: 全尺寸图片幻灯片

图 3 扰动条件下由静态强度向动态强度的转变

Figure 3. Catastrophe of high-stressed rock mass under disturbance

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图 4 扰动作用下块体的运动

Figure 4. Motion of rock blocks under disturbance

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