| 合蚌客专膨胀土性状及路基填料改良处理措施研究 |
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| 引用本文： | 陶燕春.合蚌客专膨胀土性状及路基填料改良处理措施研究[J].路基工程,2013,0(6):116-119. |
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| 作者姓名： | 陶燕春 |
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| 作者单位： | 中铁上海设计院集团有限公司，上海 200333 |
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| 摘 要： | 针对合蚌客专全线的膨胀土进行了大量的取样试验，查明了沿线及取土场膨胀土的膨胀潜势分级及各项膨胀性指标，并对石灰改良土进行了配比试验，证明掺灰比为5 %～8 %时，石灰改良土可满足设计要求的基床底层及基床以下路堤填料的各项控制指标。
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| 关 键 词： | 膨胀土 自由膨胀率 蒙脱石含量 膨胀潜势 改良土 |
| 收稿时间： | 2019-11-09 |
Study on Properties of the Expansive Soil along Hefei-Bengbu PDL and the Measures Improving the Subgrade Filling |
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| Authors: | TAO Yanchun |
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| Affiliation: | TAO Yanchun (China Railway Shanghai Design Institute Group. Co. , Ltd. , Shanghai 200333, China) |
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| Abstract: | A large number of sampling tests were carried out in relation to the expansive soil along Hefei- Bengbu PDL as a whole, so that the swelling potential grading and various swelling indices of the expansive soil along the line and within the gravel-soil-taken field were investigated. Simultaneously, the soil improved by lime in different proportions was tested, which demonstrated that when lime ratio is 5 % - 8 % , such improved soil can meet the design requirements for the control targets of the embankment filling at the bed bottom and under the bed. |
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| Keywords: | expansive soil free swelling ratio montmorillonite content swelling potential improved soil |
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