渡槽伸缩缝止水施工技术

Construction technology of aqueduct expansion joint sealing structure

本文主要阐述了驮英水库灌区东干渠渡槽伸缩缝止水方案选择,介绍了压板式止水施工工艺流程及质量控制要点。驮英水库灌区东干渠渡槽共10.22 km,渡槽伸缩缝共647条,渡槽伸缩缝止水施工工艺较复杂,施工质量要求高。经过充水试验,渡槽伸缩缝止水满足防渗漏等的要求,能保证渡槽止水结构安全可靠。

The authors demonstrate the selection of aqueduct expansion joint sealing schemes for the East trunk canal of Tuoying Reservoir irrigation zone, present the construction process of pressing plate type water stop and key points of quality control. The East trunk canal of Tuoying Reservoir irrigation zone has aqueducts with a total length of 10.22km and 647 expansion joints. The construction of aqueduct expansion joint sealing requires complex technique and strict quality control. The results of water filling test demonstrate the aqueduct expansion joint seal is able to meet the requirements for seepage prevention and the aqueduct sealing structure is safe and reliable.