粉土土水特征曲线影响因素试验及模型验证

doi:10.16232/j.cnki.1001-4179.2018.14.020

人民长江

• 论文 • 上一篇

粉土土水特征曲线影响因素试验及模型验证

李幻，谭晔，梁文鹏，吴家琦，张蒙飞，黄志全

出版日期:2018-07-28 发布日期:2018-07-28

Analysis on influential factors of soil-water characteristic curve of silt and model verification

LI Huan, TAN Ye, LIANG Wenpeng,WU Jiaqi,ZHANG Mengfei, HUANG Zhiquan

Online:2018-07-28 Published:2018-07-28

摘要/Abstract

摘要： 土水特征曲线（SWCC）的影响因素有很多，为了探究其主要影响因素，采用压力板仪测定了初始干密度为1.78 g/cm3的土样A和初始干密度为1.65 g/cm3、经固结试验后干密度为1.78 g/cm3的土样B它们的初始脱湿线，发现二者基本重合。这说明在其他条件相同的情况下，是干密度而非固结压力决定了SWCC形态。测定了土样B的主吸湿线和主脱湿线，并采用毛细滞回简化模型计算了土样的主脱湿线，计算所得主脱湿线和试验得到的主脱湿线基本重合，验证了该模型的有效性。

关键词: 非饱和土, 土水特征曲线, 固结试验, 毛细滞回简化模型

Abstract: There are many factors affecting the soil-water characteristic curve (SWCC). Soil sample A with initial dry density of 1.78 g/cm3 and soil sample B with initial dry density of 1.65 g/cm3 and dry density of 1.78 g/cm3 after consolidation were tested by pressure plate apparatus and their initial drying curves were determined. It was found that the two curves are basically coincident, showing that dry density rather than the consolidation pressure is the determining factor in SWCC morphology. The main drying and wetting curves of soil sample B were measured and the main drying curve was simulated by using the simplified capillary hysteresis model. The calculated main drying curve was basically the same with the measured one, showing that the presented model is correct.

Key words: unsaturated soil, soil water characteristic curve, consolidation test, simplified capillary hysteresis model

李幻，谭晔，梁文鹏，吴家琦，张蒙飞，黄志全. 粉土土水特征曲线影响因素试验及模型验证[J]. 人民长江, doi: 10.16232/j.cnki.1001-4179.2018.14.020.

LI Huan, TAN Ye, LIANG Wenpeng,WU Jiaqi,ZHANG Mengfei, HUANG Zhiquan. Analysis on influential factors of soil-water characteristic curve of silt and model verification[J]. , doi: 10.16232/j.cnki.1001-4179.2018.14.020.

[1]	熊齐欢;袁青;于锦;杨林;. 强降雨作用下软土隧道仰坡稳定性分析[J]. 人民长江, 2022, 53(12): 151-150.
[2]	邢春艳. 宁波市杭州湾上更新统黏土结构特性试验研究[J]. 人民长江, 2021, 52(S1): 301-304.
[3]	何晓英，李东，任永彪，张建忠，于泽清. MICP对黏性泥石流沉积物固结特性影响研究[J]. 人民长江, 2021, 52(6): 148-153.
[4]	张晋梅，张震，李家春. 降雨条件下弃渣场边坡暂态饱和区分布及稳定性[J]. 人民长江, 2021, 52(6): 154-159.
[5]	陈建胜. 堰塞湖相沉积细粒类土固结系数试验研究[J]. 人民长江, 2020, 51(增刊I): 188-190.
[6]	茆金柱，刘勇，黄振伟，李爱国. 糯扎渡库区非饱和土SWCC曲线测定及应用[J]. 人民长江, 2020, 51(增刊I): 204-207.
[7]	黄建华，鲍锋，李宏，杨杰. 玻璃纤维重塑黄土的力学特性试验研究[J]. 人民长江, 2020, 51(S2): 260-264.
[8]	李幻，吴家琦，侯蕊，黄志全. 应用一步流动法快速测定土水特征曲线试验研究[J]. 人民长江, 2020, 51(2): 160-165.
[9]	王柯，刘强，孙冲. 滤纸法在多种土类吸力测量中的应用[J]. 人民长江, 2019, 50(9): 198-203.
[10]	杨龙，姚文敏，曾江波，肖林超. 堆填分层与降雨入渗条件下渣土边坡稳定性研究[J]. 人民长江, 2019, 50(10): 175-181.
[11]	孙长帅，秦秀娟，黄香林. 考虑初始状态的均质非饱和土入渗过程解析解[J]. 人民长江, 2019, 50(10): 182-186.
[12]	代云霞. 饱和软黏土静止土压力系数试验探讨[J]. 人民长江, 2017, 48(s2): 240-243.
[13]	边加敏. 新开挖边坡膨胀土膨胀变形量模拟方法研究[J]. 人民长江, 2017, 48(20): 96-100.
[14]	金松丽，赵卫全，邢义川,高连琳,李仁涛. 侧限条件下原状黄土增湿特性研究[J]. 人民长江, 2017, 48(18): 61-66.
[15]	罗小艳，扶名福. 石灰改良土的非饱和土变形与强度特性试验[J]. 人民长江, 2017, 48(17): 86-90.

粉土土水特征曲线影响因素试验及模型验证

Analysis on influential factors of soil-water characteristic curve of silt and model verification

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价