水运工程
水運工程
수운공정
PORT & WATERWAY ENGINEERING
2013年
6期
81-84
,共4页
三峡水库%洪水急流滩%航道条件%上滩流量
三峽水庫%洪水急流灘%航道條件%上灘流量
삼협수고%홍수급류탄%항도조건%상탄류량
the Three Gorges reservoir%flood rapids%channel condition%critical discharge
收集三峡水库常年回水区洪水急流滩——和尚滩大量的实测地形、水文及过往船舶航行资料，建立了数学模型，分析汛期的航道条件变化，并得到和尚滩的船舶自航上滩临界流量条件。结果表明：175 m试验性蓄水后，和尚滩航道条件有所改善，流速、比降减缓，水深、航宽增加，万吨级船队及3000吨船舶自航上滩临界流量有所提升，航运效益明显提高。
收集三峽水庫常年迴水區洪水急流灘——和尚灘大量的實測地形、水文及過往船舶航行資料，建立瞭數學模型，分析汛期的航道條件變化，併得到和尚灘的船舶自航上灘臨界流量條件。結果錶明：175 m試驗性蓄水後，和尚灘航道條件有所改善，流速、比降減緩，水深、航寬增加，萬噸級船隊及3000噸船舶自航上灘臨界流量有所提升，航運效益明顯提高。
수집삼협수고상년회수구홍수급류탄——화상탄대량적실측지형、수문급과왕선박항행자료，건립료수학모형，분석신기적항도조건변화，병득도화상탄적선박자항상탄림계류량조건。결과표명：175 m시험성축수후，화상탄항도조건유소개선，류속、비강감완，수심、항관증가，만둔급선대급3000둔선박자항상탄림계류량유소제승，항운효익명현제고。
This paper collects the data about measured terrain, hydrology and track line of ships of Heshang rapids in perennial backwater area of the Three Gorges reservoir, establishes the mathematical model, analyzes the channel condition variation in the flood season, and gains the critical discharge for ships ascending Heshang rapids. The results show that the channel condition of Heshang rapids in the flood season is improved, vertically-averaged flow and slop decreases, and water depth and width of navigation increases. The critical discharge for the 10 000DTW fleet and 3 000DTW ship increases, and the shipping efficiency in Three Gorges reservoir area is improved.
