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分析了导致其倾斜的主要原因:①设计中对在高压缩湿陷性黄土地基上进行大面积填土认识不足;②忽视了周边环境的影响及工程活动对环境改变所产生的反作用;③勘察时将新近堆积黄土误判为一般风成湿陷性黄土。指出了在这一地区进行工程设计时容易忽视的问题:只盯着可能会发生的湿陷变形而忽视了必然要发生的压缩变形。对相关的两个规范问题进行了讨论:①通过理论分析和试验验证了在室内湿陷试验中采用固定浸水压力的不合理性;②对计算湿陷量公式中系数β和β0的合理性提出了质疑,并给出了修改建议,有助于澄清对于湿陷系数和计算湿陷量的模糊认识。
The main reasons leading to its tilt are analyzed: ①the design has not enough understanding of large area filling on high compression collapsible loess foundation; ② neglect the influence of surrounding environment and the reaction of engineering activities to environmental change; ③ survey Newly-accumulated loess was mistakenly identified as generally aeolian collapsible loess. Points out the problems that can be overlooked in engineering design in this area: only staring at the collapse deformation that may occur and neglecting the inevitable compression deformation. Two related normative issues are discussed: ①The irrationality of using fixed submergence pressure in laboratory collapsible test is verified through theoretical analysis and experiment; ②The reasonableness of calculating coefficient β and β0 in the formula of collapsibility is proposed Questioned, and gave suggestions for revisions to help clarify the vague understanding of collapsibility coefficients and calculation of collapsibility.