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二道凹水库位于土左旗沙尔沁公社二道四村东北的什拉乌素前河上。为平原水库,主坝高11米,总库容1630万立米、受益面积2.4万亩。按五十年一遇的洪水标准设计,五百年一遇的洪水标证校核。在主河槽的软土地基上建有泄洪闸一座,(钻孔柱状图及物理力学性质表附后)为三级建筑。闸室净宽24米分为三孔,以8×5米的弧形钢闸门控制。水闸上下游最大水位差6.68米,最大泄洪流量为725米~3/秒。闹底板长16.0米,厚1.6米,底板前端及后端均布置有沉井作为垂直防渗体(见图1)。前端沉井全长45.6米,后端沉井全长33.4米;沉井高2.5米,宽1.5米,单排沉井间沉陷缝宽2.5厘米、
Erdaogou reservoir is located in Tuzuoqi Shaqin commune Erdao four villages northeast of the former Silau Su Su River. For the plain reservoir, the main dam is 11 meters high, with a total storage capacity of 16.3 million cubic meters, benefiting an area of 24000 acres. According to fifty years flood standard design, once in five hundred years of flood certificate verification. A sluice gate has been built on the soft soil foundation of the main channel (bottom of borehole histogram and physical and mechanical properties attached) as a tertiary structure. Gate 24 meters wide net width is divided into three holes to 8 × 5 m arc steel gate control. The maximum water level difference between the upstream and downstream of the sluice is 6.68 meters and the maximum flood discharge is 725 meters to 3 seconds. The downtown floor is 16.0 meters long and 1.6 meters thick with a caisson as a vertical seepage control at the front and back of the floor (see Figure 1). The front caisson has a total length of 45.6 meters and a back caisson of 33.4 meters in length. The caisson is 2.5 meters wide and 1.5 meters wide. The single caisson caisson has a width of 2.5 centimeters,