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青田县坑口水库大坝是我省第一座采用沥青混凝土防渗斜墙堆石坝,斜墙沥青混凝土已于3月23日开始铺筑。水库集水面积9.0平方公里,库容235万立米,坝高37米。坝体采用人工堆(砌)石,上游坝坡1:1.7,下游平均坝坡1:1·4。水库建成后可灌溉0.4万亩农田,并分三级发电,总装机2000千瓦。斜墙沥青混凝土摊铺面积约4000平米,采用复式断面,共分4层,即防渗上层、排水层、防渗底层、整平胶结层。沥青混凝土斜墙与堆石坝体间设有干砌块石刚性垫层。此外,
Qingtian County Hang Hau reservoir dam is the first use of asphalt concrete impervious slant rockfill dam, inclined wall asphalt concrete began paving on March 23. Reservoir water area of 9.0 square kilometers, storage capacity 2.35 million cubic meters, 37 meters high dam. The dam body is made of artificial pile (puzzle stone), the upstream dam slope 1: 1.7, downstream average dam slope 1: 1.4. Upon completion, the reservoir can irrigate 0.4 million mu of farmland and generate power in three stages with a total installed capacity of 2,000 kilowatts. Oblique wall of asphalt paving area of about 4,000 square meters, the use of duplex sections, is divided into 4 layers, that is, impermeable upper layer, drainage layer, impermeable bottom, leveling adhesive layer. Between the asphalt concrete inclined wall and the rockfill dam body has a dry block stone rigid cushion. In addition,