卅把水库1993年“7．25”洪水入库流量还原计算

对于无入库流量测站的水库利用水量平衡方程式可以计算水库的入库流量。还原计算“７．２５”洪水后，得到了卅把水库时段平均入库流量过程线，经修匀后得到的入库流量过程线，接近实际情况。卅把水库１９９３年“７．２５”洪水中最大入库流量为９９０ｍ３／ｓ。     

THE SYSTEM OF MODEL CONTROL AND DATA ACQUISITION IN THE HUAIHE RIVER FLOOD CONTROL MODEL

ＴＨＥＳＹＳＴＥＭＯＦＭＯＤＥＬＣＯＮＴＲＯＬＡＮＤＤＡＴＡＡＣＱＵＩＳＩＴＩＯＮＩＮＴＨＥＨＵＡＩＨＥＲＩＶＥＲＦＬＯＯＤＣＯＮＴＲＯＬＭＯＤＥＬ￥ＣｈｅｎＸｉａｎ－ｐｕ；ＬｕＬｉｅ－ｍｉｎ；ＷｕＦｅｎｇ；ＬｉａｎｇＢｉｎ（Ａｎｈｕｉ＆Ｈｕａｉｈｅ...     

Circular tunnel in a semi-infinite aquifer

The steady gravity flow that is generated by a circular tunnel disturbing the hydrostatic state of a semi-infinite, homogeneous and isotropic aquifer is solved exactly. Many aspects of the flow are found in closed analytical forms such as the water inflow, pressure, leakage and recharging infiltration, which give a complete view of the aquifer in the drained steady state. It is found that the maximum value of the recharging infiltration does not exceed the hydraulic conductivity allowing stating a criteria for recharge intervention to ensure the stability of the aquifer. In addition to the main results, two aspects of the water inflow are treated. These are the necessary modifications that are to be considered in the case of an inclined water table and in the case of a lined tunnel that develops a constant internal pressure. It is also found that under an inclined water table a tunnel may cease to drain on its complete circumferential edge and a limiting condition is stated. Furthermore, the Muskat–Goodman and other water inflow predictions are compared to the exact gravity water inflow.     

某萤石矿井水文地质特征分析及涌水量预测

以某萤石矿为例,在分析矿井水文地质特征的基础上,指出矿井的主要充水因素,并采用"大井法"和集水廊道法预测了矿区首开区的涌水量,各开采中段的预测结果分别为73.4、260.6、306.6、326.7、169.1 m3/d,为地下水疏排工程设计提供了设计依据。     

陈家岭煤矿涌水量特征及影响因素研究

在系统整理分析陈家岭煤矿2007~2012年全矿涌水量资料的基础上,计算出全矿涌水量的平均值和置信区间,判别出陈家岭煤矿全矿涌水量多年趋势动态和年动态类型均为起伏型,影响总涌水量动态类型的因素有大气降水、地震、水平延伸和观测操作记录不当等。降水量与全矿涌水量的相关系数为0.514,属于正相关、中等相关。汶川地震后总涌水量增加部分来自周边含水层静储量,主要通道为新形成的裂隙、老裂隙的开启和延伸。     

考虑径流不确定性的水库优化调度响应曲面方法

来流的不确定性是造成水库调度困难的主要原因之一。针对这一问题,本文提出了基于径向基核函数的水库优化调度的响应曲面建立方法。该响应曲面用以表达入库流量、水库状态（水位或库容）及其对应的水库该时段最优下泄流量三者之间的关系,包含了不同来流过程下水库最优运行方案的信息。根据所建立的响应曲面以及径流预报,可以快速准确地定位出水库运行的决策方案。研究将该方法应用于某水库以月为单位的长期优化调度中,结果表明,水库优化调度响应曲面的建立过程考虑了水库长期运行中来流不确定性的影响,可以为今后水库的运行调度提供参考。     

智能工作面电液控制装置水处理系统应用分析

为保证智能综放工作面电液控制装置运行稳定和支架等设备的安全运行,采用由过滤器组、软化水装置、储水箱、自动配比装置等组成的水处理系统;该系统对进水进行高精度过滤,并进行酸碱等离子成分处理,保证乳化液的纯净度,维护电液系统及设备运行安全。试验表明,工作面回采过程中未出现电液装置及设备故障,应用效果好。     

斜沟煤矿3号煤层覆岩结构综放开采顶板涌水量预测研究

覆岩结构综放开采顶板渗水现象仍然为煤矿生产主要制约因素之一。以斜沟煤矿3号煤层为主要研究对象,通过对覆岩结构综放开采裂隙分布规律研究以及覆岩结构综放开采涌水量数值分析,实现对覆岩结构综放开采顶板涌水量的预测,以期对矿井水害防治研究有所帮助。     

Vertical manoeuvring and rotor speed robust control for mini-helicopter

A robust control approach is presented for vertical manoeuvring helicopters with aerodynamics acting on the main rotor. An induced inflow observer is applied which only requires the measured values of the vertical accelerator in the body frame. The controller consists of three parts: a feedback linearisation controller, a nominal controller and a robust compensator. Feedback linearisation is applied to decouple the vertical motion dynamics and the rotor speed dynamics; the nominal controller aims to achieve desired performances for the nominal system without external disturbances or uncertainties; and the robust compensator is designed to restrain the effect of the external disturbance and the uncertainties. It is proven that all the states involved are bounded and the tracking error of the actual system can converge into an arbitrary specified boundary in a finite time for any given initial state. The results of outdoor flight experiments show that the robust tracking performances are consistent with the theory analysis conclusions.     

水库水量平衡计算中消除水位跳变影响的过滤算法

水量平衡算法广泛应用于水调系统中入库流量计算,但其计算结果受库水位影响较大,常因库水位波动而产生锯齿状震荡。对常用入库流量震荡问题处理方法进行了比较,并对库水位跳变引起的入库流量计算影响进行分析,提出了基于水量平衡的库水位跳变过滤算法。该算法以当前水位最大设计出库流量作为基准,利用水量平衡模型反推时段最大水位下降幅度,从而判别新水位值是否属于异常跳变。该算法判别阈值可根据水库特性和水位值自适应变动,使异常判别更为精准。以槟榔江三岔河水库为例,分析了该算法对库水位跳变处理过程及入库流量计算成果。结果表明,该算法能有效过滤小幅水位下降异常跳变,减轻入库流量锯齿震荡。