人民黄河
人民黃河
인민황하
Yellow River
2015年
9期
54-58
,共5页
周庆庆%李玉建%孙启冀%任志
週慶慶%李玉建%孫啟冀%任誌
주경경%리옥건%손계기%임지
水力插板透水丁坝%缓流促淤%动床模型试验
水力插闆透水丁壩%緩流促淤%動床模型試驗
수력삽판투수정패%완류촉어%동상모형시험
hydraulic flashboard permeable spur dike%sedimentation promotion with tranquil flow%movable bed model test
针对新疆粉细沙河床上堤坝工程防洪效果不佳的问题,通过在室内开展河工动床模型试验,并结合理论分析的方法对水力插板透水丁坝、水力插板实体丁坝、井柱桩透水丁坝的缓流促淤效果进行对比试验研究。结果表明:三种型式丁坝的坝后流速均出现了不同程度的降低,其中水力插板透水丁坝坝后流速降低了约46%,水力插板实体丁坝及井柱桩透水丁坝坝后流速分别降低了约16%和30%;水力插板透水丁坝坝后未出现明显的回流区,使其坝后淤积高度大于另外两种型式丁坝;水力插板透水丁坝比水力插板实体丁坝与井柱桩透水丁坝在维持自身稳定性上的效果更好。
針對新疆粉細沙河床上隄壩工程防洪效果不佳的問題,通過在室內開展河工動床模型試驗,併結閤理論分析的方法對水力插闆透水丁壩、水力插闆實體丁壩、井柱樁透水丁壩的緩流促淤效果進行對比試驗研究。結果錶明:三種型式丁壩的壩後流速均齣現瞭不同程度的降低,其中水力插闆透水丁壩壩後流速降低瞭約46%,水力插闆實體丁壩及井柱樁透水丁壩壩後流速分彆降低瞭約16%和30%;水力插闆透水丁壩壩後未齣現明顯的迴流區,使其壩後淤積高度大于另外兩種型式丁壩;水力插闆透水丁壩比水力插闆實體丁壩與井柱樁透水丁壩在維持自身穩定性上的效果更好。
침대신강분세사하상상제패공정방홍효과불가적문제,통과재실내개전하공동상모형시험,병결합이론분석적방법대수력삽판투수정패、수력삽판실체정패、정주장투수정패적완류촉어효과진행대비시험연구。결과표명:삼충형식정패적패후류속균출현료불동정도적강저,기중수력삽판투수정패패후류속강저료약46%,수력삽판실체정패급정주장투수정패패후류속분별강저료약16%화30%;수력삽판투수정패패후미출현명현적회류구,사기패후어적고도대우령외량충형식정패;수력삽판투수정패비수력삽판실체정패여정주장투수정패재유지자신은정성상적효과경호。
In view of flood control effect was not obvious in Xinjiang riverbed made of sand,by developing river engineering movable bed model test and theoretical analysis,for effect of sedimentation promotion with tranquil flow of hydraulic flashboard permeable spur dike and hydraulic flashboard entity spur dike,well-pole pile permeable spur dike in contrast test research were conducted. The outcomes show that the velocity after dam of three types of spur dike is lower,the velocity behind the hydraulic flashboard permeable spur dike decreases by about 46%,the velocity at hydraulic flashboard entity spur dike and well-pole pile permeable spur dike decreases by about 16% and 30%respectively;there is no obvious recirculation region after dam,the height of deposition after dam of hydraulic flashboard permeable spur dike is greater than the other two spur dikes;hydraulic flashboard permeable spur dike is better than hydraulic flashboard entity spur dike and well-pole pile permeable spur dike on maintaining its own stability.