摘要
潼关河段射流清淤试验从 1 996年开始 ,至今已进行了 4年。 4年来试验规模不断扩大 ,内容不断增加 ,管理不断完善 ,研究也在不断深入。通过野外试验及室内研究工作 ,并结合汛期水量情况和潼关高程变化 ,证明在潼关河段清淤试验中“因势利导 ,疏通流路 ,理顺河势 ,集中水流 ,调整局部比降 ,提高水流输沙能力”的基本原则是基本符合实际的 ,遵循这样的原则 ,即使在水流条件不利和机械能力不强的情况下 ,清淤可以使潼关高程每年降低 0 .1～ 0 .
Started from 1996, the test of clearing sedimentation through jetting in Tongguan reaches has been carried out for 4 years, the scale, content of test has been enlarged, management improved, and research deepened. The basic principle of “adroitly guide action according to circumstances, dredge and smooth channels, concentrate flow to adjust local gradient and enhance sediment delivery capacity of flow” is proved to be practical through field test and office study and also combining with conditions of discharge in flood seasons and Tongguan elevation evolution. Following the principle, Tongguan elevation can be lowered 0.1 to 0.3 m every year by clearing sedimentation even without advantageous flow circumstances and strong mechanical capacities.
出处
《人民黄河》
北大核心
2000年第7期4-5,共2页
Yellow River
基金
"九五"国家重点科技攻关计划专项经费资助项目!(98- 92 8- 0 2 - 0 2 )
关键词
射流
清淤
试验
潼关高程
黄河
jetting flow, clearance of sedimentation, test, Tongguan elevation
