论文部分内容阅读
胥溪河东坝北岸7508钻孔柱状剖面中-3.7￣-5.8m深处2m厚的砂夹泥砾土层和东坝至下坝间的8179号孔下部存在4.5m厚的中、粗、细粒砂层表明,在春秋吴国开凿胥溪运河之前,该处就存在规模较大的天然河流;胥溪河沿岸薛城遗址、朝墩头遗址和下家宕新石器时代遗址的存在,以及胥溪河两岸1km范围内地表数米之下厚达数十米的淤泥层更是古中江在胥溪河一带存在的重要证据。目前胥溪河东坝所建的船闸不利于水阳江和太湖水系的沟通,也不利于发挥胥溪河流域灌溉和航运的应有作用。若能及早开发芜(湖)-太(湖)运河,即进一步拓宽芜湖→固城湖→胥溪河→东坝→溧阳→宜兴→太湖的水运航道,清除水阳江和太湖水系之间由坡积物构成的分水岭岗地堆积物,不仅可缩短长江入太湖的水上航线,还可分流长江航运船只、保证安全通航率、开发古河道砂砾石资源、稳固长江堤防,解决长江下游灌溉、分洪、排涝和冲污等一系列现实问题,推动胥溪河流域经济可持续发展。
In the column of 7508 boreholes on the north bank of the North Bank of the XuXi River, sandstone-gravelly soil layers of 2m thick at a depth of -3.7 to-5.8m and a hole of 4.517m The gravel layer indicates that there existed large-scale natural rivers there before the Xu State canal was excavated in the Spring and Autumn Period in Wu State. The existence of the Xuecheng site, the North-East site and the Xiajidao Neolithic site along the Xuxi River, Within a radius of 1km, a silt layer of several tens meters thick beneath the surface of a few meters is an important evidence that the ancient Zhongjiang River exists in the vicinity of the Xuxi River. At present, the locks of the Xudong River dam are not conducive to the communication between the Shuiyang River and the Taihu Lake, nor are they conducive to exerting the proper functions of irrigation and shipping in the Xu River Basin. If early development of the Wu (Lake) - Tai (lake) canal, which further widen Wuhu → Gucheng Lake → Xuxi River → Dongba → Liyang → Yixing → Taihu Lake waterway, clear the water between the Yangjiang River and the Taihu Lake by the slope sediment It can not only shorten the Yangtze River’s waterway into the Taihu Lake, but also divert the shipping vessels in the Yangtze River to ensure safe navigation rate, develop the ancient river gravel resources, stabilize the Yangtze River embankment, solve the Yangtze River’s downstream irrigation, flood diversion, drainage and Chong Pollution and a series of practical problems to promote sustainable economic development in Xu River Basin.