| 水溶性聚氨酯改良砒砂岩的水理性能试验研究 |
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| 引用本文： | 张俊魁,高海鹰,梁止水.水溶性聚氨酯改良砒砂岩的水理性能试验研究[J].水土保持通报,2018,38(1):103-106. |
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| 作者姓名： | 张俊魁 高海鹰 梁止水 |
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| 作者单位： | 东南大学 土木工程学院, 江苏 南京 210096,东南大学 土木工程学院, 江苏 南京 210096,东南大学 土木工程学院, 江苏 南京 210096;江苏杰成凯新材料科技有限公司, 江苏 南京 210019 |
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| 基金项目： | 国家十二五科技支撑计划项目“砒砂岩固结促生技术研发”（2013BAC05B02）；砒砂岩侵蚀岩性机理研究（2013BAC05B01） |
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| 摘 要： | 目的]研究水溶性聚氨酯(W-OH)对砒砂岩水理性能的影响,为砒砂岩高边坡防护提供指导。方法]通过W-OH改良砒砂岩水稳定性和抗冲刷性的室内试验,初步分析其改良砒砂岩机理。结果]W-OH在低浓度下即可明显提高砒砂岩团聚体的水稳定性和抗蚀能力,且团聚体水稳定性K值随团聚体粒径的减小而增大;W-OH喷洒在砒砂岩表面后,明显降低了坡面的产沙速率和产沙量。结论]通过胶结沙粒,W-OH在砒砂岩表面形成固结层,减少了水土流失,对砒砂岩的坡面稳定起到了明显防护效果。
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| 关 键 词： | 水溶性聚氨酯(W—OH) 砒砂岩 水理性质 水土流失 |
| 收稿时间： | 2017/3/13 0:00:00 |
| 修稿时间： | 2017/4/13 0:00:00 |
Water-physical Properties of Feldspathic Sandstone Modified by Hydraulic Polyurethane |
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| ZHANG Junkui,GAO Haiying and LIANG Zhishui.Water-physical Properties of Feldspathic Sandstone Modified by Hydraulic Polyurethane[J].Bulletin of Soil and Water Conservation,2018,38(1):103-106. |
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| Authors: | ZHANG Junkui GAO Haiying and LIANG Zhishui |
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| Institution: | School of Civil Engineering, Southeast University, Nanjing, Jiangsu 210096, China,School of Civil Engineering, Southeast University, Nanjing, Jiangsu 210096, China and School of Civil Engineering, Southeast University, Nanjing, Jiangsu 210096, China;Jiangsu JCK New Material Technique Co., Ltd, Nanjing, Jiangsu 210019, China |
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| Abstract: | Objective] To explore the effect of water-physical properties of feldspathic sandstone modified by a kind of hydraulic polyurethane (W-OH), and to provide the theoretical guidances for high slope protection of feldspathic sandstone.Methods] By tasting indices such as the water stability and erosion resistance of the feldspathic sandstone modified by the W-OH, the modified mechanism was analyzed.Results] It was indicated that the water stability and erosion resistance of the aggregates in modified feldspathic sandstone were obviously improved with the decrease of the particle size of the aggregates, the K was increase. The addition of W-OH significantly reduced the sediment yield and sediment yield on the slope.Conclusion] Soil and water loss from the slopes decreased greatly and the slope stability was enhanced by cementing sands which a solidified layer on the surface of the feldspathic sandstone was formed. |
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| Keywords: | hydraulic polyurethane (W-OH) feldspathic sandstone water-physical property soil and water loss |
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