论文部分内容阅读
焦五一同志就黄土本构关系所创立的“弦线模量模型”,经过二十年的试验研究、工程实践与不断完善、大量事实证明,这个理论是正确的,较原有的理论能更确切地反映黄土在外部作用下的运动规律。弦线模量模型的基本特点是:①用弦线模量代替压缩模量、变形模量和湿陷系数。实践表明,用这一项参数代替多项参数。计算结果更符合实际;②湿陷变形跟压缩变形实质相同,弦线模量概括地反映了这两类变形;③土的重度、含水量、液限及隙比与弦线模量具有显著的相关性,土的物理指标比力学指标能更确切地反映地基变形的特性;④弦线模量涵盖了许多黄土地基的技术内容,以简单明了的形式反映了黄土的特征;⑤根据弦线模量模型,地基设计只须控制变形,以承载力控制可以放弃。 弦线模量模型是我们中国人创立的,走了二十年曲折的路,经过大大小小几十项不同类型工程实践的考验,是能站住脚的。按此理论进行设计,不但能降低地基基础工程造价,而且更安全、可靠。我们欢迎有不同学术观点的人士发表意见呼吁有关当局能迅速组织力量,审查此新的理论,期使更优化的《湿陷性黄土地区建筑规范》早日问世,为社会主义建设带来效益。
Jiao Yueyi’s “string model modulus model” created by the constitutive relationship of loess, after 20 years of experimental research, engineering practice and constant improvement, has proved that this theory is correct and is more theoretical than the original theory. More accurately reflect the movement of loess under external action. The basic characteristics of the chord modulus model are: 1 Use chord modulus instead of compression modulus, deformation modulus, and collapsibility coefficient. Practice shows that use this parameter to replace multiple parameters. The calculated results are more in line with reality. 2 The collapsible deformation is essentially the same as the compressive deformation. The string modulus generally reflects the two types of deformation; 3 The soil’s weight, moisture content, liquid limit, and gap ratio are significantly different from the string modulus. Correlation, soil physical indicators than the mechanical indicators can more accurately reflect the characteristics of ground deformation; 4 string modulus covers the technical content of many loess foundations, in a simple and clear form reflects the characteristics of loess; 5 according to the string line model In the quantitative model, the foundation design only needs to control the deformation, and the bearing capacity control can be abandoned. The string modulus model was created by the Chinese people. It took 20 years of twists and turns and was able to stand up to the test of dozens of different types of engineering practice. According to this theory, the design can not only reduce the cost of foundation-based projects, but also be safer and more reliable. We welcome people with different academic opinions to express their opinions and appeal to the relevant authorities to quickly organize their forces to review this new theory, so that the more optimized “Construction Rules for the Collapsible Loess Areas” will come out as soon as possible and bring benefits to socialist construction.