| 软岩旁压试验与单轴抗压试验对比研究 |
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| 引用本文： | 彭柏兴,王星华.软岩旁压试验与单轴抗压试验对比研究[J].岩土力学,2006,27(3):451-454. |
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| 作者姓名： | 彭柏兴 王星华 |
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| 作者单位： | 1.中南大学 土木建筑学院，长沙 410075；2.长沙市勘测设计研究院，长沙 410007 |
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| 摘 要： | 在我国广泛分布的白垩系至第三系泥质粉砂岩是一种软质岩石，具有较大的地基潜力。按现行规范确定的承载力值往往偏低。在大量试验资料基础上，建立了旁压试验特征参数与岩石单轴抗压强度的相关方程，并同岩基载荷试验进行对比。实践证明，旁压试验是一种有效的原位测试方法，对确定同类地区软岩地基的承载力具有推荐价值和指导意义。
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| 关 键 词： | 泥质粉砂岩 单轴抗压试验 旁压试验 载荷试验 承载力特征值 |
| 文章编号： | 1000-7598-（2006）03-0451-04 |
| 收稿时间： | 2004-07-27 |
| 修稿时间： | 2004-11-10 |
Comparative study on PMT and uniaxial compressive test on soft rock |
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| PENG Bai-xing,WANG Xing-hua.Comparative study on PMT and uniaxial compressive test on soft rock[J].Rock and Soil Mechanics,2006,27(3):451-454. |
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| Authors: | PENG Bai-xing WANG Xing-hua |
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| Institution: | 1.School of Civil and Architectural Eingineering, Central South University, Changsha 410075, China; 2.Changsha Municipal Institute of Investigation & Design, Changsha 410007, China |
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| Abstract: | Argillaceous siltstone is a kind of soft rock,which is widespread during Cretaceous to Eogene in China.The potential bearing capacity of this rock is relatively larger.But the bearing capacity evaluated with current Code is quite different to that obtained on site test.The correlation between pressuremeter test(PMT) and uniaxial compressive test on sedimentary rock are studied;and the correlation equations are established for characteristic parameters of PMT and compressive strength.The result of analysis shows that PMT is rather effective for determining the bearing capacity of this kind of soft rocks and is deserved to be applied to practical problems such as those on soft rocks. |
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| Keywords: | argillaceous siltstone urtiaxial compressive test PMT loading test characteristic value of bearing capacity |
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