本文主要研究内容
作者张治国,李胜楠,张成平,王志伟（2019）在《考虑地下水位升降影响的盾构施工诱发地层变形和衬砌响应分析》一文中研究指出：盾构隧道施工时遭遇地下水位急剧变化会明显增大施工风险,既有成果较少考虑地下水位升降给盾构隧道施工带来的影响,也较少针对隧道衬砌本身变形和应力进行分析。在考虑盾构隧道施工时地下水位变化的情况下引入隧道洞周的非均匀收敛变形模式,采用复变函数法理论,提出地下水位升降影响下盾构隧道开挖引起的周围地层、衬砌变形和应力的计算方法。将理论解析结果与数值模拟结果进行对比,验证了所提出方法的可靠性,并针对衬砌厚度、隧道半径、地下水位深度等参数进行了敏感性分析。研究结果表明,衬砌的径向位移形态基本呈现"苹果把"朝上的"苹果"形;随着地下水位的下降径向位移由"鸭蛋"形逐渐向"苹果"形过渡,且"苹果"形越来越明显;衬砌的环向位移基本形态呈倾斜的"苹果"形,随着地下水位的下降倾斜的"苹果"形范围逐渐变大;径向应力的分布在衬砌厚度、隧道半径的影响下呈现出相同的增减变化规律,且随着上述两个参数逐渐增大,径向应力分布由水平放置的"鸭蛋"逐渐变化成水平放置的"?"字形,随着地下水位的下降径向应力形态逐渐向中心收缩;衬砌环向应力随着衬砌厚度的增大,应力略微减小,随着隧道半径的增大衬砌环向应力明显减小,随着地下水位的下降环向应力分布形态由竖立放置的"鸭蛋"形逐渐变化为竖立放置的"8"字形;衬砌切向应力在衬砌厚度、隧道半径的影响下呈现相同的增减变化规律,且切向应力分布呈现"苹果把"朝下的"苹果"形。研究成果可为地下水位变化明显的盾构施工控制提供参考。
Abstract
dun gou sui dao shi gong shi zao yu de xia shui wei ji ju bian hua hui ming xian zeng da shi gong feng xian ,ji you cheng guo jiao shao kao lv de xia shui wei sheng jiang gei dun gou sui dao shi gong dai lai de ying xiang ,ye jiao shao zhen dui sui dao chen qi ben shen bian xing he ying li jin hang fen xi 。zai kao lv dun gou sui dao shi gong shi de xia shui wei bian hua de qing kuang xia yin ru sui dao dong zhou de fei jun yun shou lian bian xing mo shi ,cai yong fu bian han shu fa li lun ,di chu de xia shui wei sheng jiang ying xiang xia dun gou sui dao kai wa yin qi de zhou wei de ceng 、chen qi bian xing he ying li de ji suan fang fa 。jiang li lun jie xi jie guo yu shu zhi mo ni jie guo jin hang dui bi ,yan zheng le suo di chu fang fa de ke kao xing ,bing zhen dui chen qi hou du 、sui dao ban jing 、de xia shui wei shen du deng can shu jin hang le min gan xing fen xi 。yan jiu jie guo biao ming ,chen qi de jing xiang wei yi xing tai ji ben cheng xian "ping guo ba "chao shang de "ping guo "xing ;sui zhao de xia shui wei de xia jiang jing xiang wei yi you "ya dan "xing zhu jian xiang "ping guo "xing guo du ,ju "ping guo "xing yue lai yue ming xian ;chen qi de huan xiang wei yi ji ben xing tai cheng qing xie de "ping guo "xing ,sui zhao de xia shui wei de xia jiang qing xie de "ping guo "xing fan wei zhu jian bian da ;jing xiang ying li de fen bu zai chen qi hou du 、sui dao ban jing de ying xiang xia cheng xian chu xiang tong de zeng jian bian hua gui lv ,ju sui zhao shang shu liang ge can shu zhu jian zeng da ,jing xiang ying li fen bu you shui ping fang zhi de "ya dan "zhu jian bian hua cheng shui ping fang zhi de "?"zi xing ,sui zhao de xia shui wei de xia jiang jing xiang ying li xing tai zhu jian xiang zhong xin shou su ;chen qi huan xiang ying li sui zhao chen qi hou du de zeng da ,ying li lve wei jian xiao ,sui zhao sui dao ban jing de zeng da chen qi huan xiang ying li ming xian jian xiao ,sui zhao de xia shui wei de xia jiang huan xiang ying li fen bu xing tai you shu li fang zhi de "ya dan "xing zhu jian bian hua wei shu li fang zhi de "8"zi xing ;chen qi qie xiang ying li zai chen qi hou du 、sui dao ban jing de ying xiang xia cheng xian xiang tong de zeng jian bian hua gui lv ,ju qie xiang ying li fen bu cheng xian "ping guo ba "chao xia de "ping guo "xing 。yan jiu cheng guo ke wei de xia shui wei bian hua ming xian de dun gou shi gong kong zhi di gong can kao 。
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论文详细介绍
论文作者分别是来自岩土力学的张治国,李胜楠,张成平,王志伟，发表于刊物岩土力学2019年S1期论文，是一篇关于软土盾构隧道论文,地下水位升降论文,非均匀收敛变形论文,地表沉降论文,衬砌响应论文,复变函数理论论文,岩土力学2019年S1期论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自岩土力学2019年S1期论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：软土盾构隧道论文; 地下水位升降论文; 非均匀收敛变形论文; 地表沉降论文; 衬砌响应论文; 复变函数理论论文; 岩土力学2019年S1期论文;