广东水利电力职业技术学院学报
廣東水利電力職業技術學院學報
엄동수리전력직업기술학원학보
JOURNAL OF GUANGDONG TECHNICAL COLLEGE OF WATER RESOURCES AND ELECTRIC ENGINEERING
2014年
2期
5-9
,共5页
双层堤基%渗流场%渗透稳定判据%有限元
雙層隄基%滲流場%滲透穩定判據%有限元
쌍층제기%삼류장%삼투은정판거%유한원
double layer foundation%seepage field%seepage stability criterion%finite element
渗流分析是堤基安全研究的难点与热点之一。针对双层堤基二向渗流,将其概化为水平面二向渗流问题,探讨双层堤基二向渗流场模型;结合双层堤基渗透稳定判据,采用水平二向渗流有限元法模拟双层堤基渗流场,对某大堤渗流场计算,并与实测值比较,验证本文渗流场计算方法以及渗透稳定判据的可靠性与可行性,在此基础上对双层堤基集中渗透区域的粘性土盖层进行稳定评价以及渗透破坏模式分析,为堤防工程的风险控制提供参考。
滲流分析是隄基安全研究的難點與熱點之一。針對雙層隄基二嚮滲流,將其概化為水平麵二嚮滲流問題,探討雙層隄基二嚮滲流場模型;結閤雙層隄基滲透穩定判據,採用水平二嚮滲流有限元法模擬雙層隄基滲流場,對某大隄滲流場計算,併與實測值比較,驗證本文滲流場計算方法以及滲透穩定判據的可靠性與可行性,在此基礎上對雙層隄基集中滲透區域的粘性土蓋層進行穩定評價以及滲透破壞模式分析,為隄防工程的風險控製提供參攷。
삼류분석시제기안전연구적난점여열점지일。침대쌍층제기이향삼류,장기개화위수평면이향삼류문제,탐토쌍층제기이향삼류장모형;결합쌍층제기삼투은정판거,채용수평이향삼류유한원법모의쌍층제기삼류장,대모대제삼류장계산,병여실측치비교,험증본문삼류장계산방법이급삼투은정판거적가고성여가행성,재차기출상대쌍층제기집중삼투구역적점성토개층진행은정평개이급삼투파배모식분석,위제방공정적풍험공제제공삼고。
Seepage analysis is part of the difficult and hot dike safety research. As for the bidirectional seepage problem in double layer foundation, it is generalized as a level bidirectional seepage problem. This paper discusses the model of bidirectional seepage field in double layer foundation, combined with double seepage stability criterion, adopting the level bidirectional seepage finite element method to simulate double layer foundation seepage field. Then, it calculates a levee seepage field, compares with the measured values, and verifies the method to calculate the seepage field and seepage stability criterion of reliability and feasibility. On this basis, this paper analyses the stability evaluation of clay soil cover layer in double layer foundation penetrating region and the seepage failure mode and provides the reference for the risk control of embankment engineering.