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首页 > 过刊浏览>2023年第51卷第6期 >805-810. DOI:10.11908/j.issn.0253-374x.23088
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深埋防护工程静动耦合作用下安全层厚度计算理论与方法
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作者:
作者单位:

1.陆军工程大学 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

作者简介:

王明洋（1966—），男，中国工程院院士，教授，博士生导师，工学博士，主要研究方向为防灾减灾工程及防护工程。E-mail： wmyrf@163.com

通讯作者:

徐天涵（1995—），男，讲师，工学博士，主要研究方向为防灾减灾工程及防护工程。 E-mail： martinxu41@126.com

中图分类号:

O38

基金项目:

国家自然科学基金（52278419）


Calculation Theory and Method of Safety Layer Thickness of Deep Underground Protection Engineering Under Coupling Effect of Static and Dynamic Loading
Author:
Affiliation:

1.State Key Laboratory of Disaster Prevention & Mitigation of Explosion & Impact ，Army Engineering University of PLA， Nanjing 210007， China;2.School of Mechanical Engineering，Nanjing 210094，China

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    摘要:

    针对外军钻地武器列装现状，通过地冲击能量耦合系数给出了等效封闭爆炸当量的计算方法。通过引入地冲击能量因子，提出了以能量因子为统一判据的破坏分区评判标准。利用经典弹塑性力学理论得到了围岩自承能力及围岩压力计算公式，揭示了围岩自承能力的本质是围岩剪切强度，且塑性区的扩展有利于自承能力提高。结合地冲击能量因子和动载作用下围岩压力，给出了地应力与地冲击耦合作用下深埋防护工程最小安全层厚度计算方法。计算结果表明，高地应力增大了地冲击的破坏效应，破坏区范围要大于不考虑地应力的情况。

    Abstract:

    In view of the current situation of the foreign military ground-penetrating weapons， the calculation method of equivalent contained explosion equivalent is given through the coupling factor of ground shock energy. By introducing the dimensionless energy factor， a criterion of damage zones based on the energy factor is proposed. Based on the classical elastic-plastic mechanics， the formulas for calculating the self-supporting capacity of surrounding rock and the pressure of surrounding rock are obtained. It is revealed that the essence of the self-supporting capacity of surrounding rock is the shear strength of surrounding rock， and the expansion of the plastic zone is conducive to the improvement of self-supporting capacity. Combined with the energy factor and the surrounding rock pressure under dynamic load， the calculation method for the minimum thickness of the safety protective layer of deep buried protection engineering under the coupling effect of ground shock and in-situ stress is given. The results show that the high in-situ stress increases the damage effect of the ground shock， and the range of the damage area is larger than that without considering the in-situ stress.

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王明洋,徐天涵,蒋海明,高磊,熊自明,卢浩.深埋防护工程静动耦合作用下安全层厚度计算理论与方法[J].同济大学学报(自然科学版),2023,51(6):805~810

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  • 收稿日期:2023-03-06
  • 在线发布日期: 2023-06-28
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