In recent years,the utilization of concrete lining for slope and floor in water transmission channels has become increasingly prevalent due to the implementation of large-scale channel water diversion projects and channel reconstruction projects in irrigation areas.The potential damage caused by groundwater to the lining panel may disrupt the smooth water transmission of the channel,as any local slope instability and structural impairment can have a detrimental impact.Therefore,the significance of permanent drainage facilities for large-scale channel projects should be highly valued.The implementation of reasonable and effective drainage facilities can significantly mitigate the detrimental impact of groundwater on the concrete lining panel of channel,thereby ensuring the stability and integrity of the channel concrete panel.It is crucial for guaranteeing the reliability and safety of later water delivery operations.The on-site supervision should enhance the process control during the construction process,implementing a rigorous inspection and evaluation system to ensure that the drainage facilities meet the design requirements.
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