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南水北调中线北京段PCCP工程,全长56.4 km,为保证全线自流工况,同时降低工程造价保证工期,共约11.55 km管沟未回填至原状地面,形成了长11.55 km、面积72.1 hm2的深槽边坡,采取工程措施、辅助措施及水保措施等,来保证边坡稳定并减少对周围居民生产、生活的影响。
A total length of 56.4 km is required for the PCCP project in the middle section of the South-to-North Water Diversion Project. In order to ensure the gravity flow throughout the line and reduce the construction cost guarantee period, a total of about 11.55 km of trench has not been backfilled to the original ground, forming a deep trench with a length of 11.55 km and an area of 72.1 hm2 Slope, engineering measures, auxiliary measures and water conservation measures to ensure the stability of the slope and reduce the impact on the residents around the production and life.