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一、概述 卡伦水库由于设计标准低、施工质量差、工程不配套,一直影响着水库正常运行和效益发挥。近几十年使用发现,洞身沉陷缝止水橡皮老化,闸门锈蚀严重,手动启闭机设备陈旧,泄洪灌溉洞及竖井胸墙出现8处环向裂缝。更为严重的是在除险加固土坝护坡施工放水过程中发现,在库水位以下竖井闸门上方6m,188.45m高程处有一条较大的环向贯穿裂缝,严重威胁大坝及人身安全(见图1)。
First, an overview of Karen Reservoir due to low design standards, poor construction quality, engineering does not complete, has been affecting the normal operation of reservoirs and the effectiveness of play. In recent decades, it has been found that there are 8 circumferential cracks in the hole wall sinking sewer sealing rubber, the serious rusting of the gate, the obsolete equipment of the manual hoist, and the flood irrigation hole and the shaft chest wall. What is more serious is that it is found that there is a large circumferential crack at the height of 6m and 188.45m above the gate of the shaft below the reservoir water level, which seriously threatens the dam and personal safety figure 1).