1) downtown complicated environments
市区复杂环境
2) urban complex environment
城市复杂环境
1.
Once the sudden and unexpected explosive events happen in such an urban complex environment, it will bring extremely severe consequences to the security of urban citizens and the city public finances.
因此,对于城市复杂环境中爆炸荷载作用下结构的灾害评估与减灾研究已经成为国家自然科学基础研究的重点之一。
2.
In order to learn more about the failure mechanism of building structures under blast disaster, the spread of blast waves in urban complex environment and blast loading on buildings are simulated.
为了揭示爆炸灾害对于建筑结构的破坏机理,本文采用数值方法模拟了爆炸冲击波在城市复杂环境中的传播规律以及作用在建筑上的爆炸荷载,并对钢筋混凝土构件在爆炸荷载作用下的动力响应进行了研究,主要研究工作及创新成果包括以下几个方面:(1)对于建筑物外部刚性地面上所发生的炸药爆炸,应用显式有限元分析软件AUTODYN,建立了其数值分析模型,模拟了爆炸冲击波在空气中以及遇到建筑物后的传播过程,研究了建筑物的正面、侧面和背面的爆炸超压的分布规律,并分析了门窗洞口的存在对于建筑结构上的爆炸超压时程的影响。
3.
Propagation law and overpressure load of blast wave in urban complex environment are simulated and analyzed using LS-DYNA3D software and the ALE method.
该文利用LS-DYNA软件,采用ALE方法,对城市复杂环境中爆炸波的传播规律与超压荷载进行了数值模拟和分析。
3) complicated environment
复杂环境
1.
The application of SMW method in foundation pit support under complicated environment;
SMW工法在复杂环境基坑支护中的应用
2.
Application of controlled blasting technique under complicated environment;
复杂环境下路堑开挖中控制爆破技术的应用
3.
In complicated environment, reasonable cartridge layout and sublevel and the "south-throwing north-loosing" chamber blasting were adopted in the practice to solve the difficult problems of flyrock and re- mained debris, the design meets the requirements above.
通过工程实践，在复杂环境下精心布药、合理分段，采用南抛北松硐室大爆破，克服抛掷爆破中飞石、溜渣危害与防护相矛盾的难题，达到控制飞石、溜碴、抛掷与安全防护的要求。
4) Complex Environment
复杂环境
1.
The foundation management in complex environment;
浅谈复杂环境下的地基处理
2.
The mass soil cubic exploiting technique in complex environment;
复杂环境下大体积土石方开采技术
3.
Study on nighttime lane detection in complex environment;
复杂环境下的夜间车道检测研究
补充资料：海洋自然地理环境(见自然地理环境)
海洋自然地理环境(见自然地理环境)
marine physical geographic environment
haiyang ziran dili huaniing海洋自然地理环境(marin。phys、calgeograPhic environment)见自然地理环境。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条