| 高分子材料SH固沙性能与微结构相关性研究 |
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| 引用本文： | 和法国,谌文武,韩文峰,张景科.高分子材料SH固沙性能与微结构相关性研究[J].岩土力学,2009,30(12):3803-3807. |
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| 作者姓名： | 和法国 谌文武 韩文峰 张景科 |
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| 作者单位： | 1. 西部灾害与环境力学教育部重点试验室,兰州,730000;兰州大学,土木工程与力学学院,兰州,730000
2. 兰州大学,土木工程与力学学院,兰州,730000;天津城市建设学院,土木工程系,天津,300384 |
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| 基金项目： | 国家863计划资助项目 |
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| 摘 要： | SH作为一种环保型、节约型有机高分子固化材料，用于沙漠治理具有广阔的应用前景。采用不同浓度SH、不同加固方式对沙体进行加固，加固后沙体微结构会发生变化，其物理力学性能也会出现显著变化。通过图形处理软件对固化后沙体的SEM图像进行计算分析；利用多元逐步回归分析方法对其性能参数与微结构参数之间的相关性进行计算，并对其相关性进行分析评价。计算结果表明，二者之间存在着良好的相关关系，各向异性、等效直径、扁圆度、充填比和面积比是对固化沙土力学性质影响较为显著的5个微结构参数。从微观角度证明了SH是一种较为理想的高分子固沙材料。
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| 关 键 词： | 高分子材料 加固性能 微结构 相关性 多元逐步回归分析 |
| 收稿时间： | 2009-03-25 |
Correlation of microstructure indices and performance of sand solidified with polymer material SH |
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| HE Fa-guo,CHEN Wen-wu,HAN Wen-feng,ZHANG Jing-ke.Correlation of microstructure indices and performance of sand solidified with polymer material SH[J].Rock and Soil Mechanics,2009,30(12):3803-3807. |
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| Authors: | HE Fa-guo CHEN Wen-wu HAN Wen-feng ZHANG Jing-ke |
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| Institution: | 1. Key Laboratory of Mechanics on Western Disaster and Environment, Lanzhou 730000, China; 2. School of Mechanics and Civil Engineering, Lanzhou University, Lanzhou 730000, China; 3. Tianjin Institute of Urban Construction, Tianjin 300384, China |
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| Abstract: | Organic polymer material SH, as an economical and environmentally solidified material, possesses useful properties in control of desert. Sand with different densities is solidified by SH material of different consistencies with different means of reinforcement. After being solidified, microstructure of the sand will be changed; and accordingly the mechanical property will change also. Graphics manipulation has been used to count and analyze the stereoscan photographs of solidified sand. Multivariate stepwise regression method has been used to calculate the correlation of microstructure indices and the mechanical property, and analyze and evaluate them. The result shows that there exists good correlation between the mechanical property and microstructure indices of sand after solidified by SH material. Anisotropy, equivalent diameter, aspect ratio, fill ratio and ratio are the five significant indices effecting on the mechanical property of sand with SH. It is shown that SH is an ideal polymeric soil consolidator in terms of microstructure. |
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| Keywords: | polymer material reinforcement property microstructure indices correlation multivariate stepwise regression method |
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