首页/文章/ 详情

压缩指数Cc的经验估算---与初始孔隙比e0的回归关系

计算岩土力学

2年前浏览940

1 引言

在《压缩指数Cc的经验估算---与天然含水量Wn的回归关系》一文中，给出了一些使用天然含水量Wn估算压缩指数Cc的关系式，在此基础上，本文总结了一些使用初始孔隙比(Initial Void Ratio)来估算压缩指数Cc的关系式。

2 Cc与初始孔隙比的关系

如下表所示，在过去的工作中从不同的文献中总结了一些压缩指数与初始孔隙比的回归关系。

3 典型的经验值

土的孔隙比，含水量和干密度是沉降计算的必要参数，下面列出了一些不同类型土的典型经验值。

3 结束语

除了在《压缩指数Cc的经验估算---与天然含水量Wn的回归关系》中列出的一些教材外，附加的资料包括一些近期的研究结果列于下面的参考文献中。

参考文献:

[1] Wesley, L. (1988). "Compression Index: Misleading Parameter?" Journal of Geotechnical Engineering 114(6): 718-723.

[2] Tiwari, B. and B. Ajmera (2012). "New Correlation Equations for Compression Index of Remolded Clays." Journal of Geotechnical and Geoenvironmental Engineering 138(6): 757-762.

[3] Yoon, G. L., et al. (2004). "Empirical correlations of compression index for marine clay from regression analysis." Canadian Geotechnical Journal 41(6): 1213-1221.

[4] Park, J. and T. Koumoto (2004). "New Compression Index Equation." Journal of Geotechnical and Geoenvironmental Engineering 130(2): 223-226.

[5] MolaAbasi, H., et al. (2016). "Prediction of the compression index of saturated clays (C-c) using polynomial models." Scientia Iranica 23(2): 500-507.

[6] Demir, A. (2015). "New Computational Models for Better Predictions of the Soil-Compression Index." Acta Geotechnica Slovenica 12(1): 58-69.

[7] Kordnaeij, A., et al. (2015). "Prediction of recompression index using GMDH-type neural network based on geotechnical soil properties." Soils and Foundations 55(6): 1335-1345.

[8] Kurnaz, T. F. and Y. Kaya (2018). "The comparison of the performance of ELM, BRNN, and SVM methods for the prediction of compression index of clays." Arabian Journal of Geosciences 11(24).

[9] Robinson, R. G. and Allam, M. M. (2003) “ Compression index of clays and silts” Journal of testing and evaluation ASTM 31 (1) pp 1-6

[10] Yan, W., et al. (2009). "Bayesian Probabilistic Approach for the Correlations of Compression Index for Marine Clays." Journal of Geotechnical and Geoenvironmental Engineering 135(12): 1932-1940.

[11] Nagaraj, T.S., and Murthy, B.R.S. (1985). "Prediction of the Preconsolidation Pressure and Recompression Index of Soils," Geotech. Testing Journal, Vol. 8. No. 4.

[12] Hong, Z. and K. Onitsuka (1998). "A method of correcting yield stress and compression index of Ariake clays for sample disturbance." Soils and Foundations 38(2): 211-222.

[13] NISHIDA, Y. (1956). “A Brief Note on Compression Index of Soils,” Journal of the Soil Mechanics and Foundations Division, ASCE, Vol. 82, No. SM3, 1027-1–1027-14.

[14] RENDON-HERRERO, O. (1980). “Universal Compression Index Equation,” Journal of the Geotechnical Engineering Division, ASCE, Vol. 106, No. GT11, 1179–1200.