水利水运工程学报
水利水運工程學報
수이수운공정학보
HYDRO-SCIENCE AND ENGINEERING
2009年
4期
1-10
,共10页
郑颖人%唐晓松%赵尚毅%李安洪
鄭穎人%唐曉鬆%趙尚毅%李安洪
정영인%당효송%조상의%리안홍
涉水岸坡%稳定性分析%治理工程%非稳态渗流%浸润面%有限元强度折减法
涉水岸坡%穩定性分析%治理工程%非穩態滲流%浸潤麵%有限元彊度摺減法
섭수안파%은정성분석%치리공정%비은태삼류%침윤면%유한원강도절감법
fording slopes%stability analysis%controlling engineering%unstable seepage%phreatic surface%strength reduction FEM
随着大中型水库的陆续兴建,形成了大量的涉水岸坡,库水水位的波动将影响这些岸坡的稳定性,可能诱发水库滑坡,甚至形成地质灾害.库水水位的变化将引起岸坡体内地下水的非稳态渗流,因此其稳定性分析变得十分复杂.目前,设计人员大都采用经验概化,或者照搬规范的方法,使设计中主观性和定性的成分比较高.本文重点介绍了作者近几年围绕涉水岸坡的稳定性分析所取得的一些研究成果.其中,包括库水水位变化过程中浸润面位置的求解、有限元强度折减法在涉水岸坡稳定性分析及埋入式抗滑桩治理工程中的应用.
隨著大中型水庫的陸續興建,形成瞭大量的涉水岸坡,庫水水位的波動將影響這些岸坡的穩定性,可能誘髮水庫滑坡,甚至形成地質災害.庫水水位的變化將引起岸坡體內地下水的非穩態滲流,因此其穩定性分析變得十分複雜.目前,設計人員大都採用經驗概化,或者照搬規範的方法,使設計中主觀性和定性的成分比較高.本文重點介紹瞭作者近幾年圍繞涉水岸坡的穩定性分析所取得的一些研究成果.其中,包括庫水水位變化過程中浸潤麵位置的求解、有限元彊度摺減法在涉水岸坡穩定性分析及埋入式抗滑樁治理工程中的應用.
수착대중형수고적륙속흥건,형성료대량적섭수안파,고수수위적파동장영향저사안파적은정성,가능유발수고활파,심지형성지질재해.고수수위적변화장인기안파체내지하수적비은태삼류,인차기은정성분석변득십분복잡.목전,설계인원대도채용경험개화,혹자조반규범적방법,사설계중주관성화정성적성분비교고.본문중점개소료작자근궤년위요섭수안파적은정성분석소취득적일사연구성과.기중,포괄고수수위변화과정중침윤면위치적구해、유한원강도절감법재섭수안파은정성분석급매입식항활장치리공정중적응용.
With the construction of large and medium sized reservoirs, a lot of fording slopes appear and the change of reservoir water level will influence the slope stability, which would lead to landslides, even geological hazards. The stability analysis becomes very complicated since the fluctuation of water level would cause unstable seepage for the underground water inside the slope. At present, researchers mostly adopt the methods of empirical generalization or copy standards in practical engineering, which will make the design subjective and qualitative. So the researches on the methods of stability analysis are significant to engineering safety, environment protection and hazard prevention both theoretically and practically. In the paper, some achievements of stability analysis by the authors are introduced, including the solution to phreatic surface during the change of water level, the application of strength reduction FEM in stability analysis and the application of embedded anti-slide piles in the controlling engineering.