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通过对结构性黏土的研究可以掌握天然土受荷过程中的变形破坏过程,从而为考虑土结构性的结构物的设计、地基加固等提供依据。近年来随着高、深和大型建筑的兴建,结构性黏土的研究变得尤为重要。天然土都具有结构性和各向异性。发展了一种能够考虑初始应力各向异性影响的结构性土的人工制样方法。通过对原料粉质黏土中添加水泥形成颗粒之间的胶结作用,添加盐粒并溶解后形成大孔隙组构分布和在水化过程中的侧限应力状态的结构性土样的端部施加竖向荷载,从而人工制备了具有初始应力各向异性的结构性土样。然后对初始均质结构性土样、初始应力各向异性结构性土样和重塑土样进行了三轴固结排水剪切试验,初步分析了初始应力对结构性土样的应力-应变特性的影响和初始应力各向异性结构性土的破损机制。
Through the study of structural clay, the process of deformation and failure of natural soil can be grasped, which can provide the basis for the design of the structure considering soil structure and foundation reinforcement. In recent years, with the construction of high, deep and large buildings, the study of structural clay has become especially important. Natural earth is both structural and anisotropic. An artificial sample preparation method of structural soil that can consider the influence of initial stress anisotropy is developed. By adding cement to the raw silty clay to form cementation between particles, adding salt particles and dissolving them to form macropore structure distribution and structural soil samples with confined stress during hydration, To the load, artificial structured anisotropic initial soil samples were prepared. Then three-axis consolidation drainage and drainage tests on initial homogeneous structural soil samples, initial stress anisotropic structural soil samples and remolded soil samples were carried out. The stress-strain characteristics of initial soil samples The Influence and Initial Stress Anisotropic Structural Soil Damage Mechanism.