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1.制作开槽机的原因在南水北调水渠边坡工程施工过程中,经常遇到土质为膨胀土的地段。膨胀土稳定性较差,若直接在膨胀土上浇筑混凝土,其抗压、防渗性能和牢固性均较差。为了改善膨胀土土质性能,需换填水泥改性土。换填水泥改性土以后,还要在水渠边坡上开挖宽50cm、深60cm、长度26m至30m的深槽,并用钢筋混凝土浇筑网状坡面梁,以防止水渠边坡滑坡。由于水渠边坡开槽技术要求较高,且水泥改性土的土质异常坚硬,若
1. The reasons for the production of slotting machine In the South-North Water Diversion Slope Project construction process, often encountered soil for the expansive soil lots. Expansive soil stability is poor, if the direct placement of concrete in the expansive soil, the compressive, impermeability and fastness are poor. In order to improve the performance of expansive soil, need to fill in cement-modified soil. After replacing cement-modified soil, excavation of deep grooves of width 50cm, depth 60cm and length 26m to 30m shall be carried out on the slope of the ditches. Reinforced concrete shall be used to pour the mesh-shaped slope beams so as to prevent landslides of ditches. Due to the technical requirements for trench ditching, and the soil of cement-modified soil is extremely hard, if