京杭运河徐州段是南水北调东线工程的一部分，10a来的监测资料表明。蔺家坝、洞山西、红旗新村和解台闸等监测断面的水质为重污染或严重污染，达不到国家地面水Ⅲ类水体标准，其主要污染指标依次为石油类、非离子氨、化学需氧量、生化需氧量和高锰酸盐指数. 利用多年的监测资料建立了水质灰色预测模型，预测结果表明，2005 年运河徐州段解台闸断面的COD，BOD5，石油类、高锰酸盐指数、非离子氨分别为38.79，10.57，0.62，15.64，0.23mg/L，接近或超过V类水标准，属重污染水平，因此应尽快控制丁万河、铜焦化、荆马河等支流的污水排放，以确保南水北调工程徐州段的水质.

车变应用扫描电镜、X-折射、压汞试验及力学强度试验等方法。研究了兖州及徐州地区红层的物质组成、孔隙结构、力学强度及膨胀和崩解特性，初步探讨了红层对 煤矿建井与煤层开采的影响。

对荆马河水样、底泥和两岸土样中部分重金属的测试，结果表明，荆马河水相中Cu、cd、Pb重金属的最高含量分别为0.025mg/L、0.005mg/L、0.0475mg/L，除cd超出地表水Ⅲ类标准外，其它未超标。底泥中cu、cd、Pb、cr的最高含量分别是260.0mg/kg、6.63mg/kg、864.5mg/kg、177mg/kg，分别是土壤背景值的13.24倍、41.4倍、49.7倍和3.99倍；重金属含量从源头到下游有逐渐升高的趋势，同时在主要排污口下游附近出现急剧增大现象。荆马河两岸土壤除了Cr含量低外，其它重金属含量均高出土壤背景值1.14～21.13倍，尤其cd、Pb污染严重。因此，为确保京杭运河水质达到国家标准和南水北调工程的顺利实施，应尽快对荆马河采取防治措施。

Hydrogeochemical simulation is an effective method to study water-rock interaction. In this paper, PHREEQM was used for the simulation of water-rock interaction under water flooding in the Renqiu Oilfield. Calculated results revealed that when fresh water was injected into the reservoir, Cl and Na+ would decrease without involvement in water-rock interaction. Erosion to dolomite will lead to an increase in Ca2+, Mg2+ and CaHCO3+. Saturation index of calcite and aragonite decreased first and then increased. With fresh water accounting for up to 70%, mixed water has the strongest erosion ability. Deoiled water has erosion ability under high temperature and high partial pressure of CO2. Pyrite and gypsum were sensitive to deoiled water, which can cause the dissolution of pyrite and the precipitation of gypsum. Micrographs revealed a great deal of information about water-rock interaction.

76 dokomite samples, the water sample from 17 wells. and the sample of water sealing from the No.436 well were tested for trace elements Sr and Ba in Wumishan formation of Renqiu oil field. The dissolution and precipitation of minerals composed of these trace elements at different temperatures and under different pressures of CO2 were simulated using the PHREEQM, software. The distribution and migration of the trace elements were discussed. The result shows that the distribution of trace elements was controlled by the sedimentation environment and the post stage water-roek interaction. Minerals formed in a high energy envi ronment of subtidol zoDe have a high content of trace elements. The Sr, for examplel, may reach as high a 0.03%; While those formed in a low energy environment of suprallitoral zone have a low content of Sr, only 0.0028%. For the scaling, the content of Sr may be as high as 0.69% and that of Ba is 0.09%, much higher than that in rocks and in water of the oil field, indicating that there exists a strong condensation action in the scaling process.