The air we breathe, the water we drink and the soil that grows our food are part of a delicate global ecosystem that is increasingly under pressure from human activities.
我们呼吸的空气，饮用的水，生长食物的土壤，是全球脆弱生态系统的一部分，这一系统所承受的人类活动的压力日益加大。
Pressure-treated fir walls must be properly constructed to prevent contact with soil and water.
压力处理的杉木墙必须妥善建造以防止土壤和水接触。
Excess pore water pressure in soil increases with the increasing of excitations.
随振动激励次数的增加，土中超孔隙水压力增大；
The strain excess pore water pressure is a response of the residual strain potential coupled with the skeleton of soil.
应变超孔隙水压力是上耦合于骨架剩余应变势的反映。
The dissipation of excess pore water pressure has a direct bearing on the design of pile foundation in saturated soft soil.
饱和软土地基中桩基设计与沉桩引起的超孔隙水压力大小及其消散有密切关系。
The strength of soil can be improved by dissipating the pore water pressure by means of vacuum drainage preloading.
真空排水预压加固软基是通过孔隙水压力的消散来增强土体的强度。
Therefore, the effect of the occurrence numbers and moments of rainfall peak on pore water pressure within unsaturated soil slopes are investigated.
本文从研究降雨类型对非饱和土斜坡内孔隙水压力的影响入手，来研究雨峰的位置对斜坡的稳定性的影响的。
According to the analysis of the pile driving the estimating method of pore water pressure of soil in surrounded pile is obtained under the computing assumption condition.
通过对打入桩的分析，在简化假定条件下，提出了在饱和粘性土中打桩时桩周土中的孔隙水压力估算方法，实测资料验证是可行的。
The excess pore water pressure at the interface of the pile and soil is discussed too.
还对桩-土界面处的超孔隙水压力进行了讨论。
The parameter of the pore water pressure and soil pressure are unfitted as the monitoring and forecasting index for bank collapse.
内部孔隙水压力及土压力参数不适合作为崩岸的监测预测指标。
Soil nonlinearity, pore water pressure build-up process and boundary condition of the model are taken into account in the calculation model.
计算模型考虑了土体非线性、孔隙水压力的变化以及模型边界条件的处理等。
The conclusion shows that DJM has more influence on the pore water pressure of the upper soil, and PVD and DJM both have more influence on the lower soil.
研究认为粉喷桩的存在对地基加固区土体的孔压值影响较大，而在地基下卧层有无粉喷桩或排水板对土体孔压影响都很大。
It is found that the situation near the soil pipe laying and the water pressure in pipe are the main factors.
经过研究发现，管道埋设附近的土质情况和管道的供水压力是主要因素。
In the course of construction, the free pore water in the weak soil of highway foundation is seldom discharged immediately, and the excess pore water pressure comes into being.
软土高填方路基施工过程中，土内自由水难以及时排出，产生超静水压力。
Combined with the pore water pressure model, soil liquefaction under the seismic excitation can be modeled.
结合孔隙水压力模型可以模拟地震作用引起的饱和砂土液化问题。
Theoretical analysis of local-control irrigation, i. e. , non-pressure underground irrigation, is conducted, and soil water movement equation is presented.
对局部控水灌溉（无压地下灌溉）技术从理论上进行了分析，并给出了其土壤水分运动方程。
Land subsidence results from changes in the pressure borne by pore water in the soil and the effective stress borne by soil skeleton.
地面沉降是土层中孔隙水承担的孔隙水压力和土骨架承担的有效应力发生变化的结果。
But the negative pore water pressure in the soft soil is smaller, which is decided by the geologic characteristics of the soft soil.
淤泥中的负孔隙水压力则较小，其数值大小主要取决于所处位置的软土特性。
Change of pore water pressure is the precursor of change of soil intensity.
孔隙水压力的变化是土体强度变化的前兆。
The observation results of the Jialichen bridge-head experiment site such as pore water pressure, settlement of soil at various depths, surface settlement, and horizontal displacement are analyzed.
对浃里陈大桥桥头试验段的孔隙水压力、分层沉降、地表沉降、土体水平位移等现场监测结果进行了分析；
It can be seen that the initial maximum pore water pressure takes place in the lower soil due to the load transformation from pile cap to soil.
研究结果表明，打桩后桩体所受荷载向下传递，地基中的初始最大孔隙水压力出现在桩端以下土层。
The program is utilized to calculate soil rocks dam free surface position variation and pore-water pressure distribution condition with time when the up water level position changed.
利用所编写的非稳定渗流计算程序，计算土石坝上游水位变化时自由面位置随时间的变化规律、孔隙水压力的分布情况。
The pervious effect produced by underground water has two attributes and imposes more influence on water pressure than on effective soil pressure.
地下水产生的渗流效应具有两重性，其对水压力的影响大于对有效土压力的影响。
According to the feature of gravel-soil, the water content of sample is controlled by granule soil content and sampled under the same vertical pressure.
结合碎石土的特点，采用细粒土含量控制试样的含水量，在同一竖向压力下制样。
Pore water pressure in soil will change the effective stress of the soil;
孔隙水压力会改变土体中的有效应力；
The importance to monitor the pore water pressure and to study the permeability of soil under the north anchorage of Jiangyin Yangtze River Highway Bridge is analyzed firstly.
以江阴长江公路大桥北锚碇为例，首先阐述了锚碇地基土孔隙水压力观测和渗透性分析的意义。并根据江阴长江公路大桥地基基础安全监测成果，分析了孔隙水与长江水的水力联系。
The analytical calculation for one project case shows that the maximal earth counterforces calculated by estimating water and earth pressure together or separately in clay soil were very different.
算例分析表明，在黏性土中采用水土压力分算和合算得到的圆形沉井最大土体反力差别很大。
And flow of water and air simulated by numerical model of water-air two-phase flow could be used to quantitatively analyze the influence of air pressure on infiltration of water into soil.
采用水-气二相流模型模拟得到水相、气相的流动状态，为定量研究孔隙气压力对入渗水流的影响提供了有效途径。
The condition of water pressure acting on the both sides of cement-soil retaining wall is researched by computing the seepage field around the wall.
通过计算水泥土挡土墙周围的渗流场，研究了墙侧水压力的变化规律。
The condition of water pressure acting on the both sides of cement-soil retaining wall is researched by computing the seepage field around the wall.
通过计算水泥土挡土墙周围的渗流场，研究了墙侧水压力的变化规律。
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