会议名称：
第十二届水-岩相互作用国际研讨会(P0roceedings of the 12th International Symposium on Water-Rock Interaction)
会议时间：
2007-07-31
会议地点：
昆明
会议论文集名称：
第十二届水－岩相互作用国际学术研讨会
摘要：
The distribution character of radioactive waste on uranium mill-tailing sites of China was presented in this paper. The progress on pollution control technology of radionuclides diffusion on uranium mill-tailing sites was summarized. Furthermore, the progresses on simulation of radionuclides migration in the groundwater of uranium mill-tailing sites, permeable reactive barrier (PRB) and microbial remedy technology were discussed in detail.
作者机构：
[陈泽昂; 吕俊文; 谢水波; 王开华; 王清良] School of Architectural Engineering and Resources Environment, Nanhua University, Hengyang 421001, China;[张晓健; 谢水波] Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China
通讯机构：
School of Architectural Engineering and Resources Environment, Nanhua University, China
作者机构：
[张晓文; 刘慧君] College of Architecture Engineering and Resource Environment, Nanhua University, Hengyang 421001, China;[徐伟箭] College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China;[刘耀驰] College of Architecture Engineering and Resource Environment, Nanhua University, Hengyang 421001, China<&wdkj&>College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
通讯机构：
[Liu, Y.-C.] C;College of Architecture Engineering and Resource Environment, Nanhua University, China
作者机构：
[汤广发; 黄文胜; 罗清海; 龚光彩] College of Civil Engineering, Hunan Univ, Changsha 410082, China;[罗清海] College of Urban Construction, Nanhua Univ, Hengyang 421001, China
通讯机构：
College of Civil Engineering, Hunan Univ, China
作者机构：
[Ding De-xin] Cent S Univ, Sch Resources & Safety Engn, Changsha 410083, Peoples R China.;Nanhua Univ, Sch Architectural Resources & Environm Engn, Hengyang 421001, Peoples R China.
通讯机构：
[Ding De-xin] C;Cent S Univ, Sch Resources & Safety Engn, Changsha 410083, Peoples R China.
关键词：
mining induced surface subsidence;fuzziness and interaction of parameters;artificial neural fuzzy inference system
摘要：
There are many parameters influencing mining induced surface subsidence. These parameters usually interact with one another and some of them have the characteristic of fuzziness. Current approaches to predicting the subsidence cannot take into account of such interactions and fuzziness. In order to overcome this disadvantage, many mining induced surface subsidence cases were accumulated, and an artificial neuro fuzzy inference system(ANFIS) was used to set up 4 ANFIS models to predict the rise angle, dip angle, center angle and the maximum subsidence, respectively. The fitting and generalization prediction capabilities of the models were tested. The test results show that the models have very good fitting and generalization prediction capabilities and the approach can be applied to predict the mining induced surface subsidence.
作者机构：
[张光明] Shenzhen Graduate School, Tsinghua University, Shenzhen 518055, China;[陈言明] School of Architecture and Resource, Nanhua University, Hengyang 421001, China;[张盼月] Department of Environmental Science and Engineering, Hunan University, Changsha 410082, China
摘要：
This paper investigates the treatment of chromium (Cr) contaminated industrial sludge from a tanning process with ultrasound to enhance the sludge settling ability and dewatering ability. Ultrasound at various frequencies, intensities, and time was tested to optimize the operation. The results show that treatment with 30 kHz, 12 W/L ultrasound for 120 s shortened the sludge settling time from 3 h to 1 h and reduced the supernatant Cr concentration. The ultrasonic treatment also reduced the sludge volume from 4.02 mL/g to 2.58 mL/g and increased the sludge Cr concentration by 2/3. The treated sludge could then be reused in the tanning operation. Proper ultrasonic treatment can significantly reduce the sludge volume and enhance the Cr reuse.
作者机构：
[毕忠伟; 张志军] School of Resources and Safety Engineering, Central South University, Changsha 410083, China;[毕忠伟; 熊正为; 张志军; 丁德馨] School of Architecture Resources and Environment Engineering, Nanhua University, Hengyang 421001, China
通讯机构：
School of Resources and Safety Engineering, Central South University, China
作者机构：
[毕忠伟] School of Resources and Safety Engineering, Central South University, Changsha 410083, China;[张新华; 毕忠伟; 丁德馨] School of Architecture and Resources Environment Engineering, Nanhua University, Hengyang 421001, China
摘要：
The theory of Monte-Carlo simulation method is that the event happened probability was estimated by happened frequency in the experiments. So it is very important to ascertain the times of simulation. The probability and statistic theory are used to determine the optimal simulation times through strict mathematic reasoning. The study of two cases is made to show the availability of the presented method, and some relative problems were discussed.
作者机构：
[丁德馨; 闫春岭; 毕忠伟] School of Resources and Safety Engineering, Central South University, Changsha 410083, China;School of Architecture, Resources and Environment Engineering, Nanhua University, Hengyang 421001, China
通讯机构：
School of Resources and Safety Engineering, Central South University, China
摘要：
Current design method for circular sliding slopes is not so reasonable that it often results in slope sliding. As a result, artificial neural network (ANN) is used to establish an artificial neural network based inverse design method for circular sliding slopes. A sample set containing 21 successful circular sliding slopes excavated in the past is used to train the network. A test sample of 3 successful circular sliding slopes excavated in the past is used to test the trained network. The test results show that the ANN based inverse design method is valid and can be applied to the design of circular sliding slopes.
