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引黄济青输水河工程昌邑辖段内,自130+501至146+336,长11.85km为复式断面,边坡系数m=2,中间设1.6m的戗台,用58cm×38cm×6cm的混凝土板衬砌,戗台以上铺设6～17行混凝土预制板。自1989年建成至今,由于戗台以上输水河内坡衬砌板下滑的影响,使戗台混凝土板滑移5～40cm。针对以上问题,1993年对其中2.2km破坏严重的河段,采取在戗台内侧板下埋设齿墙的改造方案,剩余部分也于1997年改造完成。现对原设计结构型式的稳定性及破坏后的处理方案简要介绍。
In the section of Changyi section of the Yellow River diversion project, from 130 + 501 to 146 + 336, the length of 11.85km is a double section, the slope factor is m = 2, and the middle is 1.6m taiwan, with 58cm × 38cm × 6cm Concrete slab lining, above taiwan laying 6 to 17 lines of concrete prefabricated panels. Since it was constructed in 1989, due to the influence of the slippage of lining boards on the river above Toutai, the trestle concrete slab slips 5 ~ 40cm. In response to the above problems, in 1993, about 2.2km of which was severely damaged, the reconstruction plan of embedding the tooth wall under the inner side of the trestle was taken and the remaining part was rebuilt in 1997. Now the stability of the original design structure and the destruction of the treatment program briefing.