| 1. | All tests are done in gds triaxial testing system . in triaxial shear tests , pore air pressure and pore water pressure are measured separately and matric suction is calculated 在三轴剪切试验中利用轴平移技术分别量测土样孔隙气压力和孔隙水压力,得到土样基质吸力。 |
| 2. | The triaxial shear test of the original loess is carried out and the ct scanning is ongoing at the same time . combining images and data of the ct scanning with the stress - strain curve , the course of soften dehiscence damage and harden yield damage is explained by means of damage theory 进行了原状黄土的三轴剪切试验过程中的ct扫描,结合ct图像、数据与应力应变曲线,利用损伤理论方法解释了软化开裂破坏和硬化屈服破坏过程。 |
| 3. | 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。 |
| 4. | Cycled shear tests for different part expansive soils and triaxial shear tests for different fissures growth extent expansive soils are carried out . the strength variation of expansive soils along with the variation of fissures degree and saturation degree is summed up , and fitting formulas are summarized 还进行了不同部位的膨胀土反复剪试验和不同裂隙发育程度的膨胀土三轴剪切试验,研究了膨胀土强度随裂隙度及土体饱和度变化而变化的规律,并提出了相应的拟合经验关系式。 |
| 5. | 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。 |
| 6. | By direct shear for and normal triaxial shear tests of non - saturated desert sand , the parper studied the effect of water content and dry density on the strength of the non - saturated desert sand , and set up the code of this sand . based on the plane strain test of non - saturated desert sand slope , the paper analysed the destruction way of the excavaion side during the construction by means of adding water , and brough forward a formule that calculates the allowable of excavation and pile hole 通过非饱和沙漠砂直剪试验和常规三轴剪切试验,研究了含水量和干密度对非饱和砂强度的影响,建立了这种砂的强度准则。通过非饱和沙漠砂边坡室内平面应变试验,分析了沙漠井场浸法施工中就基坑壁的破坏方式,推导出了基坑和桩孔容许开挖深度的计算公式。 |
| 7. | Much has been done on the study of the shear strength and deformation characters of loess . on the basis of the analysis of literatures about loess , triaxial shear tests and k - zero consolidation tests are carried out on unsaturated and undisturbed loess ( q3 ) which comes from longxi area in gansu province 本文以开发gds三轴试验系统为背景,在广泛总结前人有关黄土强度、变形特征研究成果的基础上,针对甘肃陇西原状q _ 3黄土进行了非饱和原状黄土三轴剪切试验和k _ 0固结试验。 |