人民黄河
人民黃河
인민황하
Yellow River
2014年
11期
39-41,137
,共4页
采砂%河道治理%畸形河势%沁河下游
採砂%河道治理%畸形河勢%沁河下遊
채사%하도치리%기형하세%심하하유
sand excavation%river training%abnormal river regime%lower Qinhe River
以沁河下游河道采砂、河势、实测断面等资料为基础，分析采砂对河道的影响，研究与河道治理相结合的采砂方案和基于采砂控制的畸形河势治理措施。结果表明：受采砂影响，现状水平设防水位与1982年实测值相比，五龙口至丹河口河段水位平均偏低约3．12 m，丹河口至徐堡河段水位平均偏低约1．69 m；沁河下游河道治理流量采用600 m3／s较为合适，与之相适应的河道横断面采砂宽度丹河口以上为250 m，丹河口—石荆桥河段为300 m，河道平均采砂深度按3 m控制，五龙口—石荆桥河段可开采砂总量约为850万m3；基于采砂控制的畸形河势治理措施能够逐步改善、消除畸形河势，改变沁河下游洪水期被动抢险的局面。
以沁河下遊河道採砂、河勢、實測斷麵等資料為基礎，分析採砂對河道的影響，研究與河道治理相結閤的採砂方案和基于採砂控製的畸形河勢治理措施。結果錶明：受採砂影響，現狀水平設防水位與1982年實測值相比，五龍口至丹河口河段水位平均偏低約3．12 m，丹河口至徐堡河段水位平均偏低約1．69 m；沁河下遊河道治理流量採用600 m3／s較為閤適，與之相適應的河道橫斷麵採砂寬度丹河口以上為250 m，丹河口—石荊橋河段為300 m，河道平均採砂深度按3 m控製，五龍口—石荊橋河段可開採砂總量約為850萬m3；基于採砂控製的畸形河勢治理措施能夠逐步改善、消除畸形河勢，改變沁河下遊洪水期被動搶險的跼麵。
이심하하유하도채사、하세、실측단면등자료위기출，분석채사대하도적영향，연구여하도치리상결합적채사방안화기우채사공제적기형하세치리조시。결과표명：수채사영향，현상수평설방수위여1982년실측치상비，오룡구지단하구하단수위평균편저약3．12 m，단하구지서보하단수위평균편저약1．69 m；심하하유하도치리류량채용600 m3／s교위합괄，여지상괄응적하도횡단면채사관도단하구이상위250 m，단하구—석형교하단위300 m，하도평균채사심도안3 m공제，오룡구—석형교하단가개채사총량약위850만m3；기우채사공제적기형하세치리조시능구축보개선、소제기형하세，개변심하하유홍수기피동창험적국면。
On the basis of sand excavation,river regime and measured profile data in the lower Qinhe River,the effect of sand excavation on the channel was analyzed. The sand excavation scheme combining with river training and measures control of abnormal river regime caused by sand ex-cavation was presented in this paper. Study results show that with the influence of sand excavation,the current designed water level comparing with measured value averagely decreases 3. 12m from Wulongkou to Danhekou and 1. 69m from Danhekou to Xubao;the river training discharge is suit-able for 600 m3/s in the lower Qinhe River,while the sand excavation width in corresponding cross-section is 250m above Danhekou and 300m from Danhekou to Shijingqiao,and the average sand excavation depth is controlled in 3m and the total quantity of sand excavation is 8. 5 million m3 from Wolongkou to Shijingqiao;measures for abnormal river regime based sand excavation control may be improved gradually,and abnormal river regime can be eliminated,and the passive situation for flood control can be changed during flood season in the lower Qinhe River.
