流域年均含沙量的PP回归预测

应用投影寻踪回归技术，建立了流域年均含沙量的预测模型。用降雨量和年平均径流等４个因子瓣某流域平均含沙量的ＰＰＲ预测结果的拟合合格率达１００％，预留检验样本报准率为７５％，表明ＰＰＲ用于泥沙输移规律的预测研究是可行的。     

分布式光纤监测系统在混凝土坝的研究与应用

传统大坝坝体温度测量一般使用电类温度传感器,存在信息量少,难掌握坝体内部温度场的变化等问题。为此,研究和论证适合测温的分布式光纤传感技术,并根据碾压混凝土坝温控监测的常用方法,结合先进的分布式光纤传感技术在乐昌峡水利枢纽工程的应用,通过与常规温度监测系统热电偶的对比,着重讨论了分布式光纤测温系统在碾压混凝土大坝温度测量中的可行性和先进性,同时展望分布式光纤温度监测技术在安全监测其他领域的应用前景。     

地震危险性分析和地震动输入机制研究

结合溪洛渡,小湾等水电工程,研究300m级高拱坝抗震设计中的基础性问题：场址地震危险性分析中不确定性因素的影响分析,重大工程设定地震的确定,设计地震运输入机制等,建立了中国水利水电强震记录数据库,首次将地理信息系统（GIS）高新技术用于水库诱发地震危险性预测分析。本专题成果成大型高拱坝工程的抗震设计提供了一套更合理,具有实用价值的科学方法。     

Design and construction of river crossing tunnel beneath Tachia River,Taiwan

Due to the impact of the 1999 Chi-Chi earthquake (ML = 7.3) and the following typhoon induced heavy rainfalls and floods, the tailrace tunnel of the Kukuan Hydropower Plant was severely blocked and must be realigned and rebuilt. The new tailrace tunnel is 1991 m long with a 140 m section passing underneath the Tachia River, where the shallowest rock cover is 3.5 m. In view of the common phenomenon that weak zone developed along river channel and debris accumulated on river bed, the ground improvement from the surface to the tunnel is difficult. Therefore, a construction shaft, a water sealing pre-grouting plan and a special supporting system were designed to prevent the potential water inflow when tunneling underneath the Tachia River. In the construction phase, adequate excavation cross sections, support elements, auxiliary treatments, and water sealing grouting methods were selected to overcome the difficult ground condition encountered. The experience learned from this successful case can be a valuable reference for the design and construction of similar river crossing tunnels in the future.     

Current states of coalbed methane and its sustainability perspectives in China

With the rapid development of China's economy in the recent years, the gap between energy supply and demand has been gradually enlarged. To solve the problem of insufficient reserves of natural gas, greenhouse effect, and safety of coal mines, coalbed methane (CBM) is considered as an effective substitute. First of all, CBM industry status is introduced, mainly including resource endowment, development status, technical conditions, and market environment. Then, the policy environment of CBM in China was summarized into 6 aspects: price policy, tax policy, financial subsidy policy, resource management policy, foreign cooperation policy, and other policies. Thirdly, through Politics, Economics, Society, and Technology analysis, Strength, Weakness, Opportunities, and Threats analysis, Politics, Economics, Society, and Technology‐Strength, Weakness, Opportunities, and Threats analysis, and Comparative Analysis, the influence of political factors, economic factors, social factors, and technological factors on CBM industry is analyzed, and the strengths, weaknesses, opportunities, and threats of CBM development are pointed out. Fourth, through the above analysis, development proposal is given from 3 aspects which include policy support, technical support, and market support. Finally, through the analysis of the industry, the related conclusions and the prospect of China's CBM are put forward.     

南宁吴圩国际机场新航站楼超大超厚分叉铸钢件安装技术

针对设计较为罕见的超大超厚分叉铸钢件,通过吊装软件模拟三维吊装,确保安装的安全性和可靠性,采取可靠的测量定位方法,严格按照对称焊接顺序保证铸钢件定位后的准确性和质量的保证性,解决了此超大超厚分叉铸钢件的施工难题。     

基于AquiferTest和FEFLOW求解水文地质参数

工程由于受地下各未知因素的影响,应用于工程计算的含水层水文地质参数与利用抽水试验及求参公式计算得出的结果有较大差距。本文利用AquiferTest软件对抽水试验结果进行模拟计算得出理想状态下区域水文地质参数,结合FEFLOW软件对小王家矿区进行了数值模拟,得出可以用于工程实际的水文地质参数,通过与实测值对比发现效果较好,模拟结果可以较好的应用于工程中的水文地质条件。