本文主要研究内容
作者张颖博（2019）在《三峡库区典型巨厚滑坡削坡减载方案优化研究——以树坪滑坡为例》一文中研究指出：自2003年三峡水库初期蓄水以来,水库蓄水及运行成为三峡库区涉水滑坡的主要诱发因素。三峡库区在175 m水位影响范围内共有大小滑坡两千余处,其中大于一百万方的特大型滑坡八十余个。现有的关于水库水位波动影响下的巨厚型堆积体滑坡的治理,主要采用削坡减载的方法对滑坡进行加固治理。削坡减载设计的关键在于获得既经济又安全的削坡方案,因此在确保安全的前提下削坡方案的优化就显得尤为重要。本论文以三峡库区典型动水压力型巨厚滑坡为研究对象,开展考虑动水压力影响的传递系数法改进研究;在此基础上,对削坡减载的优化方案进行设计,确定削坡减载方案优化的思路;最后,以三峡库区典型动水压力型巨厚滑坡——树坪滑坡为例,对其削坡减载方案进行研究。本文主要研究内容及成果概述如下:（1）介绍了传递系数法计算稳定系数与剩余下滑力的基本原理,讨论了静水压力情况下,在水土分算与水土合算时,传递系数法的不同表达方式;明确了动水压力的概念与物理意义,将动水压力与渗流力区分开来,在此基础上,对传递系数法进行改进使其考虑动水压力的影响。（2）通过对三峡库区典型巨厚型滑坡的削坡减载方案的优化思路进行研究,确定了削坡方案设计与优化的思路,具体为:根据滑坡类型确定其削坡工况,采用改进后的传递系数法计算滑坡稳定系数与剩余下滑力,绘制库水位骤降过程中不同时段的剩余下滑力曲线,通过剩余下滑力曲线,确定削坡的大致位置;结合滑坡形态特征与局部稳定性要求,确定削坡方案的主控因素及其优化范围;采用均匀设计方法对削坡方案进行设计,获得拟优化的削坡方案,并采用改进的传递系数法计算每个削坡方案的稳定系数;通过神经网络和遗传算法相结合的综合集成方法,对削坡方案进行优化分析,得到了满足设计安全系数且削坡方量最小的削坡方案,即最优削坡方案。（3）以三峡库区典型动水压力型滑坡树坪滑坡为例,根据本文削坡方案设计的方法与优化思路,得到最优削坡方案:第一阶斜坡AB的坡度i1取2.549,第一阶削坡的拐点B点的横坐标xb取520.9 m,第二阶斜坡CD的坡度i2取1.763,稳定系数为1.201,满足规范要求,与治理前相比提高了53.0%,与应急治理工程的1.10相比高9.18%;且削坡方量最少,为509526 m3,与已有应急治理措施相比,削方量减少66248 m3,进一步证明本文的削坡方案优化方法的可靠性。
Abstract
zi 2003nian san xia shui ku chu ji xu shui yi lai ,shui ku xu shui ji yun hang cheng wei san xia ku ou she shui hua po de zhu yao you fa yin su 。san xia ku ou zai 175 mshui wei ying xiang fan wei nei gong you da xiao hua po liang qian yu chu ,ji zhong da yu yi bai mo fang de te da xing hua po ba shi yu ge 。xian you de guan yu shui ku shui wei bo dong ying xiang xia de ju hou xing dui ji ti hua po de zhi li ,zhu yao cai yong xiao po jian zai de fang fa dui hua po jin hang jia gu zhi li 。xiao po jian zai she ji de guan jian zai yu huo de ji jing ji you an quan de xiao po fang an ,yin ci zai que bao an quan de qian di xia xiao po fang an de you hua jiu xian de you wei chong yao 。ben lun wen yi san xia ku ou dian xing dong shui ya li xing ju hou hua po wei yan jiu dui xiang ,kai zhan kao lv dong shui ya li ying xiang de chuan di ji shu fa gai jin yan jiu ;zai ci ji chu shang ,dui xiao po jian zai de you hua fang an jin hang she ji ,que ding xiao po jian zai fang an you hua de sai lu ;zui hou ,yi san xia ku ou dian xing dong shui ya li xing ju hou hua po ——shu ping hua po wei li ,dui ji xiao po jian zai fang an jin hang yan jiu 。ben wen zhu yao yan jiu nei rong ji cheng guo gai shu ru xia :（1）jie shao le chuan di ji shu fa ji suan wen ding ji shu yu sheng yu xia hua li de ji ben yuan li ,tao lun le jing shui ya li qing kuang xia ,zai shui tu fen suan yu shui tu ge suan shi ,chuan di ji shu fa de bu tong biao da fang shi ;ming que le dong shui ya li de gai nian yu wu li yi yi ,jiang dong shui ya li yu shen liu li ou fen kai lai ,zai ci ji chu shang ,dui chuan di ji shu fa jin hang gai jin shi ji kao lv dong shui ya li de ying xiang 。（2）tong guo dui san xia ku ou dian xing ju hou xing hua po de xiao po jian zai fang an de you hua sai lu jin hang yan jiu ,que ding le xiao po fang an she ji yu you hua de sai lu ,ju ti wei :gen ju hua po lei xing que ding ji xiao po gong kuang ,cai yong gai jin hou de chuan di ji shu fa ji suan hua po wen ding ji shu yu sheng yu xia hua li ,hui zhi ku shui wei zhou jiang guo cheng zhong bu tong shi duan de sheng yu xia hua li qu xian ,tong guo sheng yu xia hua li qu xian ,que ding xiao po de da zhi wei zhi ;jie ge hua po xing tai te zheng yu ju bu wen ding xing yao qiu ,que ding xiao po fang an de zhu kong yin su ji ji you hua fan wei ;cai yong jun yun she ji fang fa dui xiao po fang an jin hang she ji ,huo de ni you hua de xiao po fang an ,bing cai yong gai jin de chuan di ji shu fa ji suan mei ge xiao po fang an de wen ding ji shu ;tong guo shen jing wang lao he wei chuan suan fa xiang jie ge de zeng ge ji cheng fang fa ,dui xiao po fang an jin hang you hua fen xi ,de dao le man zu she ji an quan ji shu ju xiao po fang liang zui xiao de xiao po fang an ,ji zui you xiao po fang an 。（3）yi san xia ku ou dian xing dong shui ya li xing hua po shu ping hua po wei li ,gen ju ben wen xiao po fang an she ji de fang fa yu you hua sai lu ,de dao zui you xiao po fang an :di yi jie xie po ABde po du i1qu 2.549,di yi jie xiao po de guai dian Bdian de heng zuo biao xbqu 520.9 m,di er jie xie po CDde po du i2qu 1.763,wen ding ji shu wei 1.201,man zu gui fan yao qiu ,yu zhi li qian xiang bi di gao le 53.0%,yu ying ji zhi li gong cheng de 1.10xiang bi gao 9.18%;ju xiao po fang liang zui shao ,wei 509526 m3,yu yi you ying ji zhi li cuo shi xiang bi ,xiao fang liang jian shao 66248 m3,jin yi bu zheng ming ben wen de xiao po fang an you hua fang fa de ke kao xing 。
论文参考文献
论文详细介绍
论文作者分别是来自合肥工业大学的张颖博，发表于刊物合肥工业大学2019-10-22论文，是一篇关于三峡库区论文,削坡方案设计与优化论文,树坪滑坡论文,动水压力论文,合肥工业大学2019-10-22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，资料来自合肥工业大学2019-10-22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：三峡库区论文; 削坡方案设计与优化论文; 树坪滑坡论文; 动水压力论文; 合肥工业大学2019-10-22论文;