水庫情況介紹(編輯修改稿)
2024-11-09 06:53 本頁面
【文章內(nèi)容簡介】 水庫稱為滯洪水庫。Functioning and disadvantage of a retarding basin:A retarding basin is usually provided with an uncontrolled spillway and an uncontrolled orifice type automatic regulation of outflow depending upon the availability of water, takes place from such a maximum discharging capacity of such a reservoir should be equal to maximum safe carrying capacity of the channel flood occurs, the reservoir gets filled and discharges through the reservoir elevation increases, outflow discharge water level goes on rising until the flood has subsided and the inflow bees equal to or less than the this, water gets automatically withdrawn from the reservoir until the stored water is pletely advantages of a retarding basin over a gate controlled detention basin are: ①cost of gate installations is saved.② there are no gates and hence, the possibility of human error and negligence in their operation is eliminated.③since such a reservoir is not always filled, much of land below the maximum reservoir level will be submerged only temporarily and occasionally and can be used for agriculture, although no permanent habitation can be allowed on this ：滯洪區(qū)通常具有一個無控制的溢洪道和一個無控制的孔口式泄洪道，根據(jù)入流量的大小自動調(diào)節(jié)水庫的出流量。這種水庫的最大泄水能力等于下游河槽的最大安全輸水能力。洪水發(fā)生時，水庫就蓄滿水并經(jīng)泄水道放水。水庫水位上升時，出流量隨之增加。當(dāng)洪水消退、進(jìn)水量等于或小于出水量時，水位就不再上升。此后，水便自動地由水庫泄出，直到放完蓄水為止。與有閘門控制的攔洪區(qū)相比，滯洪區(qū)有以下的優(yōu)點(diǎn)：①節(jié)約了安裝閘門的費(fèi)用；②沒有閘門，因而不存在人為事故和玩忽職守的可能性；③這種水庫并不總是蓄滿著水，水庫最高水位以下的大片土地只是被暫時或偶爾淹沒，盡管不允許居民在此落戶，但是仍能有效地進(jìn)行耕作。 the principle of flood control reservoirFunctioning and advantages of a storage reservoir:A storage reservoir with gated spillway and gated sluiceway, provides more flexibility of operation, and thus gives us better control and increased usefulness of the reservoir are, therefore, preferred on large rivers which require better control, while retarding basins are preferred on small storage reservoirs, the flood crest downstream can be better controlled and regulated properly so as not to cause their is the biggest advantage of such a reservoir and outweighs its disadvantages of being costly and involving risk of human error in installation and operation of :蓄水水庫的溢洪道和泄水道有閘門控制，運(yùn)用起來就具有較大的靈活性，能更好地控制洪水，提高這種水庫的效益。因而，這類水庫通常用在需要良好控制的大河流上。而滯洪水庫則用在小的河流上。蓄水庫能更好地控制和適當(dāng)?shù)卣{(diào)節(jié)下游洪峰，使它們不會同時疊加。這就是這類水庫的最大優(yōu)點(diǎn)，盡管這種水庫的缺點(diǎn)是投資較大，閘門的安裝和操作包含著人為誤差的風(fēng)險(xiǎn)。distribution reservoir配水水庫A distribution reservoir is a small storage reservoir constructed within a city water supply a reservoir can be filled by pumping water at a certain rate and can be used to supply water even at rates higher than the inflow rate during periods of maximum demands(called critical periods of demand).Such reservoirs are, therefore, helpful in permitting the pumps or water treatment plants to work at a uniform rate, and they store water during the hours of no demand or less demand and supply water from their “storage” during the cr
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