砒砂岩膨胀溃散及抑制机理研究
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摘要
对砒砂岩的颗粒、结构、物理及几何组成进行了研究,重点研究了砒砂岩的水蚀溃散机理及过程,分析了影响砒砂岩吸水膨胀和胶结稳定的主要因素,在此基础上构建了砒砂岩的膨胀–胶结二元力学模型。研究结果表明,砒砂岩的组成可划分为颗粒物、胶结物和填充物3部分,砒砂岩的溃散主要是胶结物难以约束填充物中的黏土矿物吸水膨胀导致的,控制砒砂岩溃散需从控制填充物的吸水膨胀和增强胶结物的胶结能力着手。基于砒砂岩溃散和抑制机理的研究,提出了砒砂岩膨胀溃散的改性方案。
In this paper,the particle size,structure,physical and geometric constitute of Pisha sandstone were studied. The swelling mechanism and collapse process in water of Pisha sandstone were analyzed,and it analyzed the key influence factors on the swelling and cementation of Pisha sandstone,and the swelling-cementation two binary of Pisha sandstone based on the studies was established. The results show that the physics constitute of Pisha sandstone can be divided into three categories,such as coarse particulate matter,cement and filler matter; the effect of swelling of filler matter stronger than cementation is the main reason of Pisha sandstone collapse after immersed in water. In order to control the collapse of Pisha sandstone,the filler matter swell should be reduced and the cementing properties should be enhanced. Based on the studied results of the swelling collapse and inhibit mechanism of Pisha sandstone,the modification scheme of Pisha sandstone was given.
In this paper,the particle size,structure,physical and geometric constitute of Pisha sandstone were studied. The swelling mechanism and collapse process in water of Pisha sandstone were analyzed,and it analyzed the key influence factors on the swelling and cementation of Pisha sandstone,and the swelling-cementation two binary of Pisha sandstone based on the studies was established. The results show that the physics constitute of Pisha sandstone can be divided into three categories,such as coarse particulate matter,cement and filler matter; the effect of swelling of filler matter stronger than cementation is the main reason of Pisha sandstone collapse after immersed in water. In order to control the collapse of Pisha sandstone,the filler matter swell should be reduced and the cementing properties should be enhanced. Based on the studied results of the swelling collapse and inhibit mechanism of Pisha sandstone,the modification scheme of Pisha sandstone was given.
引文
[1]毕慈芬,邰源林,王富贵,等.防止砒砂岩地区土壤侵蚀的水土保持综合技术探讨[J].泥沙研究,2003(3):63-65.
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[3]YANG F S,CAO M M,LI H E,et al.Simulation of Sediment Retention Effects of the Single Seabuckthorn Flexible Dam in Pisha Sandstone Area[J].Ecological Engineering,2013,52:228-237.
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[6]李长明,王立久,杨大令,等.黄河砒砂岩中蒙脱石的化学成分及结构特征[J].人民黄河,2016,38(6):11-14.
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[8]叶浩,石建省,李向全,等.砒砂岩岩性特征对抗侵蚀性影响分析[J].地球学报,2006,27(2):145-150.
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[11]唐政洪,蔡强国,李忠武,等.内蒙古砒砂岩地区风蚀、水蚀及重力侵蚀交互作用研究[J].水土保持学报,2001,15(2):25-29.
[12]毕慈芬,王富贵.砒砂岩地区土壤侵蚀机理研究[J].泥沙研究,2008(1):70-73.
[13]姚文艺,吴智仁,刘慧,等.黄河流域砒砂岩区抗蚀促生技术试验研究[J].人民黄河,2015,37(1):6-10.
[14]李长明.砒砂岩中蒙脱石膨胀抑制机理及改性试验研究[D].大连:大连理工大学,2016:19-20.
[15]王愿昌,吴永红,李敏,等.砒砂岩地区水土流失及其治理途径研究[M].郑州:黄河水利出版社,2007:9-51.
[2]NI H B,ZHANG L P,ZHANG D R,et al.Weathering of Pisha Sandstones in the Wind-Water Erosion Crisscross Region on the Loess Plateau[J].J Mt Sci,2008(5):340-349.
[3]YANG F S,CAO M M,LI H E,et al.Simulation of Sediment Retention Effects of the Single Seabuckthorn Flexible Dam in Pisha Sandstone Area[J].Ecological Engineering,2013,52:228-237.
[4]冉大川.黄河中游河龙区间水沙变化研究综述[J].泥沙研究,2000(3):12-14.
[5]王立久,李长明,董晶亮.砒砂岩分布及岩性特征研究[J].人民黄河,2013,35(12):91-97.
[6]李长明,王立久,杨大令,等.黄河砒砂岩中蒙脱石的化学成分及结构特征[J].人民黄河,2016,38(6):11-14.
[7]高照良,杨世伟.黄土高原地区淤地坝存在问题分析[J].水土保持通报,1999,19(6):16-19.
[8]叶浩,石建省,李向全,等.砒砂岩岩性特征对抗侵蚀性影响分析[J].地球学报,2006,27(2):145-150.
[9]叶浩,石建省,王贵玲,等.砒砂岩化学成分特征对重力侵蚀的影响[J].水文地质工程地质,2006,33(6):5-8.
[10]石迎春,叶浩,侯宏冰,等.内蒙古南部砒砂岩侵蚀内因分析[J].地球学报,2004,25(6):659-664.
[11]唐政洪,蔡强国,李忠武,等.内蒙古砒砂岩地区风蚀、水蚀及重力侵蚀交互作用研究[J].水土保持学报,2001,15(2):25-29.
[12]毕慈芬,王富贵.砒砂岩地区土壤侵蚀机理研究[J].泥沙研究,2008(1):70-73.
[13]姚文艺,吴智仁,刘慧,等.黄河流域砒砂岩区抗蚀促生技术试验研究[J].人民黄河,2015,37(1):6-10.
[14]李长明.砒砂岩中蒙脱石膨胀抑制机理及改性试验研究[D].大连:大连理工大学,2016:19-20.
[15]王愿昌,吴永红,李敏,等.砒砂岩地区水土流失及其治理途径研究[M].郑州:黄河水利出版社,2007:9-51.