土中爆炸衬砌集水体三维弹塑性损伤分析  

3D Elastoplastic damage analysis for catchment formed and lined by blasting with finite element method

作　　者：杜荣强[1] 杨树桐[2] 都浩[1] 王海亮[3] 

机构地区：[1]山东科技大学山东省土木工程防灾减灾重点实验室,山东青岛266510 [2]中国海洋大学工程学院,山东青岛265001 [3]山东科技大学矿山灾害预防控制省部共建教育部重点实验室,山东青岛266510

出　　处：《人民长江》2011年第1期76-79,共4页Yangtze River

基　　金：国家自然科学基金项目(50908136;10672091);山东省博士后创新基金项目(200803037)

摘　　要：土中爆炸衬砌作为一种新型地下储水结构,可有效收集降水并缓解农田干旱,在水资源合理利用中具有重要作用。然而到目前为止,尚没有对其工作能力的详细分析,更没有对其破坏情况的认识。在考虑衬砌材料的弹塑性和损伤非线性变形的基础上,应用有限元软件对其做了深入数值分析,获得其极限集水能力和损伤分布,并得到其破坏趋势,对认识爆炸衬砌的工作性态具有指导意义,对指导爆炸衬砌在农田水利设施中的应用和抗旱排涝、保障农业生产具有积极现实意义。The catchment formed and lined by blasting is effective in collecting rain and mitigating drought in agricultural regions and has an important role in water resources utilization.However,there are no systemic analysis on its effectiveness and destructive effect yet.We carried out numerical simulation on catchment formed and lined by blasting in soil using finite element software considering elastoplastic and nonlinear destructive deformation of the lining material.The ultimate rain-water collecting capability,destructive pattern and failure trend were obtained.The results have valuable guidance for recognizing behaviors of the catchment formed and lined by blasting.The work is of active and realistic meaning in drought-fighting for farmland in China.

关 键 词：爆炸衬砌 有限元 弹塑性损伤 数值模拟 破坏 

分 类 号：TU92[建筑科学—建筑设计及理论] TU354