Based on laborary study with triaxial shear tests , direct shear tests , compression tests , and expansiveness tests of the expansive soil in an ' kang area , shanxi province , p . r . china , the influence of structural behavior on expansibility , shearing strength and compression is discussed 本文对安康地区膨胀土进行了较为详尽的室内静三轴试验，直剪试验，压缩试验，膨胀性试验，讨论了结构性对其压缩性、强度特性、膨胀性的影响。
Preliminary research on creep and dynamic characteristics , which are two important properties of asphalt concrete cores for embankment dams , through triaxial compression creep tests and dynamic triaxial test with the aid of the viscoelastic theory and the soil dynamics theory 本文通过三轴压缩蠕变试验和振动三轴试验，借助粘弹性理论和土动力学理论，对土石坝沥青混凝土心墙材料的两个重要性质? ?蠕变性能和动力特性进行了初步的研究。
2 . the fem software plaxis is introduced and its theories and numerical methods are given . the standard drained triaxial test and the oedometer test are subjected to simulations of various laboratory tests in order to validate the reliability with measured test data 引入了plaxis程序，对plaxis程序的特点、计算分析原理进行了概述，对土体的三轴试验和侧限固结试验进行了模拟，计算结果较好的反应了土体的基本特性，并与试验结果符合良好。
Through a large number of unconfined compression tests and triaxial compression tests , the strength property and the water - stability of the lime - loess was analyzed . some laws about the strength property of the lime - loess with different lime content and compaction work varying with time were developed 本文通过大量灰土试样的无侧限和三轴试验，对灰土强度的影响因素和水稳定性做了一定的研究，得到了灰土强度与龄期、配灰比、击实功之间的一些规律。
P - y curves can be used in designing laterally loaded piles in large displacement . parameter cm and are required in p - y method of relational criterion in china , america and japan or other country . to obtain the two parameters , triaxial compression test is needed and it will cost a lot of money 目前中国、美国、日本等国有关规范推荐的p - y曲线法均需用到土工参数c _ u和_ ( 50 ) ，而获得这两个参数需要进行费用较高的土工三轴试验，因此限制了p - y曲线法的广泛应用。
Secondly , true taixial test by load in three different principal stress direction for study on soil anisotropic deformation characteristic are processed . lateral deformation relative to load direction , lateral deformation relative to lateral direction and the stess - strain relationship in load direction are analyzed , and soil anisotropic deformation characteristic on the three aspects of elastic ratio , poisson " s ratio and the property of compliment matrix are completely analyzed too 其次，为揭示土体各向异性变形特性，有针对性进行了三主应力分别单向加荷的真三轴试验研究，分析相对于加荷向的侧向变形、互为侧向的侧向变形、不同主应力加荷向的应力应变关系各向异性性状。
In this paper the stress - strain and deformation characteristics of loess of the fifth tunnel of luohuiqu were analyzed by means of conventional tri - axial tests and the softening constitutive models were established . the models provide not only the basic and the necessary calculation conditions to analyze the mechanics response and construction optimization of simple shield tunnel method on the fifth tunnel of luohuiqu , but also a new method in researching the softening constitutive models of loess 本文通过对洛惠渠五洞q _ 1黄土进行常规三轴试验，分析和探讨黄土变形强度特性，建立q1黄土的软化本构模型，这不仅为洛惠渠五洞的简易盾构法施工的力学响应分析及其施工优化提供了最基本，最需要的计算条件，而且为当前土力学研究的热点? ?土的软化本构模型拓展了新的思路。
With an analysis of soil liquefaction potential for free field of nanjing metro line 1 under 7 degree earthquake , as well as for excavated field , in line with railway engineering anti - earthquake design specification , dynamic triaxial tests and theoretical analysis using efficient stress method , the author comes to the conclusion that , when metro plate is located at layer s and the layer is thick , liquefied area is at metro bottom plate ; in some local section liquefied area is at metro top plate , or arch sides at the top of metro in most places 摘要采用铁路工程抗震设计规范、动三轴试验及有效应力的理论分析相结合的方法，对南京地铁南北线（ 1号线）区间隧道开挖后其地基土在7度地震情况下的土层液化情况进行分析得出：当隧道底板坐落在5层且5层较厚时的液化区出现在隧道衬砌底板处；局部地段液化区出现在隧道顶部及拱腰；大部分地段的液化区出现在隧道顶板上方。
With the self - developed finite element program , the soil - structure interactions and the seismic settlement of structures under earthquakes are studied , which led to several conclusions useful to seismic design in engineering practice . the preparation method of composite cemented clay samples is modified based on former researches 本文在前人的基础上改进了水泥土复合试样的制备方法，并且进行了复合试样的静力三轴试验，考虑不同置换率和围压的影响，得到了在静力有限元分析中所必需的duncan ? chang模型参数。
The effect of matric suction on the strength and deformation as well as water content of intact loess are studied in this paper . using the direct shear testing equipment and consolidation testing equipment and modified triaxial testing equipment in the university of logistical engineering in chunqing . 4 groups ( 16 specimens ) consolidated drained direct shear tests and 2 groups ( 6 specimens ) consolidated tests as well as 1 group ( 3 specimens ) triaxial shear tests with controling matric suction were conducted 用新研制的国内第一台非饱和土固结仪、国内第一台非饱和土直剪仪和经过改进的非饱和土三轴仪，做了4组16个非饱和土直剪试验； 2组6个非饱和土固结试验； 1组3个控制吸力的非饱和土三轴试验。
