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抚顺矿务局胜利矿曾在-530米及-650米水平水泵房附近建筑了7个高压防水闸墙,其工程特点是:①承水压力大,质量要求高,设计承水压力为40～56公斤/厘米~2,混凝土的抗压强度为250公斤/厘米~2,抗渗强度为20公斤/厘米~2;②工程量大,闸体厚度为8～11.5米,开挖断面为20～109米~2,每个闸墙的实际开帮量为321～1029米~3(平均为549米~3),实际砌混凝土量为376～1100米~3(平均为562米~3);③施工技术复杂,由于闸体形状为单段截锥体(锥角8～9度),断面形状为直墙半圆拱形,有部分闸墙建筑在围岩
Fushun Mining Bureau Shengli Coal Mine has built seven high-pressure water-proof sluice gates near the pump house of -530m and -650m. The project features are as follows: ①Water pressure is high and the quality is high, and the design water pressure is 40 ~ 56 kg / cm ~ 2, concrete compressive strength of 250 kg / cm ~ 2, anti-seepage strength of 20 kg / cm ~ 2; ② large amount of engineering, the body thickness of 8 to 11.5 meters, excavation section of 20 ~ 109m ~ 2, the actual opening volume of each sluice wall is 321 ~ 1029m ~ 3 (549m ~ 3 on average), and the actual concrete volume is 376 ~ 1100m ~ 3 (average 562m ~ 3) ; ③ The construction technique is complex. Because the shape of the gate body is a single-section truncated cone (cone angle of 8 to 9 degrees), the shape of the cross section is a semi-circular arch with a straight wall. Some of the gate walls are built in the surrounding rock