| 铁晶砂胶结新型岩土相似材料的研制及其应用 |
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| 引用本文： | 张强勇,李术才,郭小红,李勇,王汉鹏.铁晶砂胶结新型岩土相似材料的研制及其应用[J].岩土力学,2008,29(8):2126-2130. |
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| 作者姓名： | 张强勇 李术才 郭小红 李勇 王汉鹏 |
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| 作者单位： | 1. 山东大学,岩土与结构工程研究中心,济南,250061
2. 中交第二公路勘测设计研究院,武汉,430071 |
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| 基金项目： | 国家自然科学基金资助项目
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山东省自然科学基金资助项目 |
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| 摘 要： | 根据地质力学模型试验的相似原理,经过大量力学试验,研制出一种新型铁晶砂胶结岩土相似材料.该材料由铁矿粉、重晶石粉、石英砂、石膏粉和松香酒精溶液按规定配比均匀拌和压实而成,其中铁矿粉、重晶石粉和石英砂作为主料,松香酒精溶液作为胶结剂,石膏粉作为调节剂.材料力学参数测试表明:该材料具有重度高、力学参数变化范围广、性能稳定、价格低廉、干燥快速、制作工艺简单、无毒无害等显著优点,可用来模拟从软岩到硬岩的大部分岩体材料.将铁晶砂胶结岩土相似材料应用于沪―蓉―西高速公路大型分岔隧道三维地质力学模型试验研究,有效地揭示了分岔隧道围岩的力学变形特性.
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| 关 键 词： | 相似原理 新型岩土相似材料 材料力学试验 大型分岔隧道三维试验模型 |
Research and development of new typed cementitious geotechnical similar material for iron crystal sand and its application |
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| ZHANG Qiang-yong,LI Shu-cai,GUO Xiao-hong,Li Yong,WANG Han-peng.Research and development of new typed cementitious geotechnical similar material for iron crystal sand and its application[J].Rock and Soil Mechanics,2008,29(8):2126-2130. |
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| Authors: | ZHANG Qiang-yong LI Shu-cai GUO Xiao-hong Li Yong WANG Han-peng |
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| Institution: | 1. Research Center of Geotechnical and Structure Engineering, Shandong University, Jinan 250061, China; 2. Chinese Communications Second Highway Survey, Design and Research Institute, Wuhan 430052, China |
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| Abstract: | According to similarity principle of geomechanical model test, a new type cementitious geotechnical similar material called iron crystal sand is developed through a lot of material mechanics test. This similar material is evenly mixed with iron ore powder, blanc fix, quartz sand, gypsum powder，rosin and alcohol in certain proportion and pressed together. Iron ore powder, blanc fix and quartz sand are main materials, the solution of rosin alcohol is cementing agent, gypsum powder is regulator. Specimen mechanical tests show that the new-type similar material has many remarkable advantages as follows: high volume-weight, wide variable mechanical parameters, stable performance, low price, easy dryness, easy processing and without any toxicity and side effects. It can be used to simulate most of rockmass material from soft to hard ones. The new typed material has been used in 3D geomecanicl model test of bifurcation tunnel of Sanghai-Chendu-Xichang expressway and mechanical deformation properties of rockmass surrounding bifurcation tunnel have been effectively revealed under excavation state. |
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| Keywords: | similarity principle new type geotechnical similar material mechanical test of material 3D test model of large-scale bifurcation tunnel |
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