水压

Using the apparatus of high stress and high hydraulic pressure developed by author, a series of tests was carried out, and the expressions of dewater consolidated settlement with hydraulic pressure and coefficient of permeability with efficient stress was obtained.

通过自行设计的高应力、高水压试验装置，进行了一系列的试验，获得了疏排水沉降量与水压变化、渗透系数与有效应力之间的关系表达式；首次对回归系数的主要影响因素从颗粒级配的特征粒径和特性参数入手，进行了系统的分析；得到了压缩模量与水压降的正相关关系式；提出了一种简便、易行的先期固结压力的确定方法，并对深土力学特性进行了初步研究；推导了各种边界条件下Terzaghi 和Biot 固结理论的水头及沉降量的解析解或半解析解；编写了隐式差分

Through an engineering example, the formulae of excess pore water pressure was verified.

结合一具体工程事故的成功处理，验证了所建议超孔隙水压公式的可行性，同时提出了减少超孔隙水压的对策和方法。

In order to study the mechanism of crack extension by hyduaulic fracturing , the mass hyduaulic fracturing experiments were carried out in granodiorite rockmass at Fangsan, Beijing, China.

为了研究水压致裂过程中裂缝的扩展机制，在北京房山花岗岩体中开展了大型水压致裂试验。

To study the mechanism of crack extension by hyduaulic fracturing, the mass hyduaulic fracturing experiments are carried out in granodiorite at Fangshan District, Beijing, China.

为研究水压致裂过程中裂缝的扩展机制，在北京市房山区花岗岩体中开展大流量水压致裂试验。

Then applying the second development tool of AUTOCAD, Visual LISP to scheme out the programs of plotting the network's systems drawing and the water isobar. Consequently, the whole set design from the node outflow distributing to plotting the network's systems drawing and the water isobar is completed.

然后应用AUTOCAD二次开发工具Visual LISP编写出绘制管网系统图程序和绘制等水压线图程序，在AUTOCAD平台上将平差或优化的结果快速成图，从而完成从节点流量开始到管网优化直至绘出给水管网系统图和等水压线图的一整套设计。

The steps of Reduced Gradient optimal method is used on solving the Least Squares theory model. At some situation, some nodes pressure and supply of all water-supply sources are measured in Xi'ning (resistance parameter of all pipes are known). By using the pressure of the experiment and optimal measure points, the state simulation is done respectively to get all nodes' pressure.

利用简约梯度优化法求解给水管网状态估计的最小二乘数学模型，实测某一工况下西宁市配水管网部分节点水压H_0、各水源供水量分别用优化选择的测压点水压和按经验选择的测压点水压估计所有节点的水压，对西宁市配水管网进行了状态估计。

Those rarely refer to the researches about water pressure function mechanism. In fact, the water flow intrudes upwards with a loss of the distance water and energy wastes for splitting rocks when confined groundwater intrudes upwards through coal seam water-resisting layer. The water flow under the coal seam scaleboard consumes more energy after it intrudes at a certain height.

实际上，煤层底板高承压含水层水沿隔水底板岩层向上导升过程中，存在一定的沿程水头损失和劈裂岩体裂隙的能量损耗，下伏含水层高压水在底板隔水层下部劈裂导升一定的高度后，在导升段的能量消耗很大，这时作用于有效隔水层段下部的实际水压已远远小于含水层中的观测水压，真正作用在有效隔水层上的水压为残余水压P_c，对底板有效隔水层起破坏作用的有效水压力亦应为残余水压。

The main hydraulic system of Hydraulic Tube Tester was taken as an example, and the workflow of Hydraulic Tube Tester and the operating principle of its main hydraulic system were introduced. AMESim was selected as the software environment, and the model of the system was built based on the sub-models of main components. The main parameters of the model were set according to the 3# Hydraulic Tube Tester in a steel mill, and then the dynamic simulation of the main hydraulic system was achieved.

摘 要：以钢管水压试验机液压系统为研究对象，阐述了水压试验机的工作流程和主液压系统工作原理，选择AMESim 作为软件环境，建立了该系统基于AMESim 的主要元件子模型，并搭建成完整的某钢厂3 号线水压试验机主液压系统模型，设置了模型中的主要参数，实现了该液压系统动态性能仿真。

Booster pump for the sprinklers and the fire hydrant has been out of flow inadequate water pressure for fire service water required to increase water pressure water pressure to meet fire safety requirements.

增压泵用于喷头和消火栓已经出流，而消防用水的水压不足，需增加水压才能满足消防用水的水压要求。

To effectively detect the ship hydrodynamic pressure signal from wind wave background, according to the characteristic difference between the ship hydrodynamic pressure signal and the wave noise, a target detection method is used on the AR model and the artificial neural network.

为了有效地从风浪背景中检测舰船水压场信号，根据舰船水压场信号和波浪噪声信号的差异，以时间序列的AR模型理论为依据，采用基于AR模型和神经网络的舰船水压信号检测方法。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。