山东黄河河务局历城修防段的王家梨行险工,于1981年12月25日夜发生滑坡险情。滑裂体长81.6米(从8号坝上跨角到11号坝下跨角),顶宽约5～6米(两头窄,中间宽),坝顶下落0.4～6.6米(两头小,中间大)。因坝坡滑动,滑裂体上的8、9、10、11号坝遭受 Wang Yili, chief of the Shandong Yellow River River Bureau Bureau of Remedial Maintenance, was in danger of landslide on December 25, 1981. The length of the slide body is 81.6 meters (spanning from the No. 8 dam to the No. 11 dam under the span) with a top width of about 5 to 6 meters (narrow at both ends and middle width) and 0.4-6.6 meters at the crest (two small, middle Big). Due to the slide of the slope, No. 8, No. 9, No. 10 and No. 11 dams on the sliding body were suffered