人民黄河
人民黃河
인민황하
Yellow River
2014年
6期
18-19,22
,共3页
冲刷深度%坝顶高程%设计流量%组装式桩坝%导流桩坝%黄河下游
遲刷深度%壩頂高程%設計流量%組裝式樁壩%導流樁壩%黃河下遊
충쇄심도%패정고정%설계류량%조장식장패%도류장패%황하하유
scour depth%crest elevation%desifn flow rate%re-assembled pile dyke%diversion pile dyke%the lower Yellow River
根据重复组装式导流桩坝在黄河下游欧坦抢险工程的总体布置方案,结合抢险工程特定的施工环境、工程自身的安全要求以及实际的水沙情况等,研究确定了该坝的设计流量及相应水位,结合以往工程经验确定了其合理的平面尺寸,并对存在的问题进行了总结。结果表明:①为保证安全,需在根据设计流量确定相应桩顶高程后预留0.1~0.2 m的超高;②尽可能采用最大冲刷深度来确定设计桩长;③应加大桩径、维持桩间距,以减小透水率。
根據重複組裝式導流樁壩在黃河下遊歐坦搶險工程的總體佈置方案,結閤搶險工程特定的施工環境、工程自身的安全要求以及實際的水沙情況等,研究確定瞭該壩的設計流量及相應水位,結閤以往工程經驗確定瞭其閤理的平麵呎吋,併對存在的問題進行瞭總結。結果錶明:①為保證安全,需在根據設計流量確定相應樁頂高程後預留0.1~0.2 m的超高;②儘可能採用最大遲刷深度來確定設計樁長;③應加大樁徑、維持樁間距,以減小透水率。
근거중복조장식도류장패재황하하유구탄창험공정적총체포치방안,결합창험공정특정적시공배경、공정자신적안전요구이급실제적수사정황등,연구학정료해패적설계류량급상응수위,결합이왕공정경험학정료기합리적평면척촌,병대존재적문제진행료총결。결과표명:①위보증안전,수재근거설계류량학정상응장정고정후예류0.1~0.2 m적초고;②진가능채용최대충쇄심도래학정설계장장;③응가대장경、유지장간거,이감소투수솔。
Accordinf to the overall layout scheme of the re-assembled diversion pile dykes in the Outan emerfency works on the lower Yellow River, and considerinf the specific construction condition of the emerfency works,the security requirement of the works itself as well as the actual water and sediment conditions,we had studied and determined the desifn flow rate of the dyke and the correspondinf water stafe,and,with the past ex-perience of works considered,had decided its rational plane size,and had summarized the problems existinf in the desifn after implementinf. The results show that:a)we should reserve an extra elevation of 0. 1~0. 2 m after determininf correspondinf pile elevation accordinf to the desifn flow rate;b)we should try to use the maximum scour depth to determine the desifn pile lenfth;c)we should adopt larfer pile diameters and maintain pile interval in future application to reduce permeable rate.