渠道混凝土衬砌以后,可以减少渗漏损失,提高渠道水利用系数,提高水流速度和渠道挟沙能力,减少渠床冲淤;但混凝土衬砌渠道由于自然和人为因素的影响,混凝土板易产生裂缝,直接危害了混凝土衬砌渠道的使用寿命和节水效果,通过论述混凝土板产生裂缝的原因和危害,提出了具体养护管理措施。 After the lining of concrete channel, the seepage loss can be reduced, the channel water utilization coefficient can be increased, the water flow velocity and channel sediment carrying capacity can be increased, and the channel bed scouring and silting can be reduced. However, due to the natural and man-made factors, Directly endanger the service life and water saving effect of concrete lining channels. Through the discussion of the causes and hazards of concrete slab cracks, concrete conservation management measures are put forward.