人民黄河
人民黃河
인민황하
Yellow River
2014年
9期
98-100
,共3页
沉沙池%设计%方案优化%引黄入冀补淀工程
沉沙池%設計%方案優化%引黃入冀補澱工程
침사지%설계%방안우화%인황입기보정공정
desilting basin%design%scheme optimization%Yellow River-to-Baiyangdian Water Transfer Project
黄河是一条多泥沙河流,引水必然引沙,在引黄工程渠首修建沉沙池,使泥沙在特定区域集中沉积处理,将泥沙造成的环境问题限制在较小的范围内,保证总干渠清水下泄,是引黄工程成败的关键。采用准静水沉降法的原理,对选定的2条条渠梭型沉沙池方案进行了分析计算。鉴于沉沙池所占的土地均为农田,为节省土地和投资,选择沉沙池条渠底宽450 m方案。按照计算,沉沙池每年淤沙量233万m3,需处理的泥沙量较大,泥沙处理问题将成为引黄入冀补淀工程最大的环境制约因素。经多方面调研,近期泥沙处理初拟方案为:优先选择低洼和闲置土地堆放,并进行平整,覆盖原状土,做好水利配套设施;黄河泥沙作为土源可以成为工程用土。
黃河是一條多泥沙河流,引水必然引沙,在引黃工程渠首脩建沉沙池,使泥沙在特定區域集中沉積處理,將泥沙造成的環境問題限製在較小的範圍內,保證總榦渠清水下洩,是引黃工程成敗的關鍵。採用準靜水沉降法的原理,對選定的2條條渠梭型沉沙池方案進行瞭分析計算。鑒于沉沙池所佔的土地均為農田,為節省土地和投資,選擇沉沙池條渠底寬450 m方案。按照計算,沉沙池每年淤沙量233萬m3,需處理的泥沙量較大,泥沙處理問題將成為引黃入冀補澱工程最大的環境製約因素。經多方麵調研,近期泥沙處理初擬方案為:優先選擇低窪和閒置土地堆放,併進行平整,覆蓋原狀土,做好水利配套設施;黃河泥沙作為土源可以成為工程用土。
황하시일조다니사하류,인수필연인사,재인황공정거수수건침사지,사니사재특정구역집중침적처리,장니사조성적배경문제한제재교소적범위내,보증총간거청수하설,시인황공정성패적관건。채용준정수침강법적원리,대선정적2조조거사형침사지방안진행료분석계산。감우침사지소점적토지균위농전,위절성토지화투자,선택침사지조거저관450 m방안。안조계산,침사지매년어사량233만m3,수처리적니사량교대,니사처리문제장성위인황입기보정공정최대적배경제약인소。경다방면조연,근기니사처리초의방안위:우선선택저와화한치토지퇴방,병진행평정,복개원상토,주호수리배투설시;황하니사작위토원가이성위공정용토。
The Yellow River is a heavily silt-laden river,water and sediment diversion are simultaneous. Building desilting basin at canal head of the Yellow River Diversion Project is a key to success. The principle of quasi-hydrostatic sedimentation method was used in the selected two desilt-ing basins analysis and calculation. In order to save the land and investments,it chose the desilting basin of canal bottom 450 m wide plan. Ac-cording to the calculations,the annual deposition volume was 2. 33 million m3,a large amount of sediment needed to be treated and dealing with the sediment would be the biggest issue of environment in the Yellow River-to-Baiyangdian Water Transfer Project. After many research,recent sed-iment treatment program is as follows:To reduce the impact of sediment to the surrounding environment of desilting basin,preference low-lying and idle land to stack sediment and leveling it. As a source of silt soil it can be used by engineering.