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河南省玉马水库土坝塌坑事故及其处理 1 工程概况玉马水库位于河南省汝阳县马兰河上,控制流域面积160km~2,总库容5370万m~3,大坝为粘土斜墙砂卵石坝,最大坝高50m,坝顶高程454m,坝顶长267m。工程设计标准,50年一遇洪水设计,500年一遇洪水校核。工程于1969年5月开工,1976年6月完工。 2 塌坑事故情况水库于1976年建成后,1977年蓄水,至当年
Project of Yuma Reservoir Earth Dam Collapse Pit in Henan Province 1 Project Overview The Yuma Reservoir is located on the Malan River in Ruyang County, Henan Province. Its control basin covers an area of 160km ~ 2 with a total storage capacity of 53.7 million m3. The dam is clay- Pebble dam, the maximum dam height 50m, crest elevation 454m, crest length 267m. Engineering design standards, 50-year flood design, 500-year flood check. The project started in May 1969 and completed in June 1976. 2 Conditions of landslide accidents After the reservoir was completed in 1976, it impounded water in 1977 to the current year