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在各种中、小型水闸施工过程中,经常会遇到扭曲面砌石护坡这种形式。扭曲面砌石护坡在水闸工程中之所以得到广泛应用,主要原因是其具有能够平稳地使上游矩形断面水流合理地过渡到下游的梯形断面水流,降低水流水能对建筑物的冲刷,并根据扭曲面在墙体内设置一定数量的反滤层排水孔。有效地在水位降低后,保证墙体内、外的水头差减小,从而使得墙体护坡不会产生较大的土(水)压力,保证扭曲面砌石护坡的稳定性。
In a variety of medium and small sluice construction process, often encounter twisted face masonry slope this form. The reason why the twisted masonry revetment is widely used in sluice works is that it has a water flow in the trapezoidal section that can smoothly make the upstream rectangular cross section flow to the downstream smoothly and reduce the flushing of the water flow to the building according to Twisted surface in the wall to set a certain number of anti-filter drainage holes. Effectively reduce the water level to ensure that the wall inside and outside the head difference decreases, so that the wall does not have a large slope of the soil (water) pressure to ensure the stability of the twisted masonry slope protection.