Centrifugal model tests on vertical strip drains in soft soil foundation

被引：0

作者：

Wang C. ^{[1
]}

Hou Y.-J. ^{[1
]}

Liu G.-B. ^{[2
]}

Peng R. ^{[3
]}

机构：

[1] Department of Geotechnical Engineering, China Institute of Water Resources and Hydropower Research (IWHR), Beijing

[2] Dalian CCCC Water Transportation Consultants Co., Ltd., Dalian

[3] Department of Civil Engineering, Beihang University, Beijing

来源：

Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering | 2017年 / 39卷

关键词：

Centrifugal model test; Consolidation; Soft soil foundation; Vertical strip drain;

D O I：

10.11779/CJGE2017S1034

中图分类号：

学科分类号：

摘要：

Centrifugal model tests are carried out to simulate the construction and operation of the dike on a soft soil foundation for the purpose of taxiway construction on the seashore. The vertical strip drains are adopted for the soft foundation treatment and they are simulated by a kind of model cylinder vertical drains in centrifuge models based on the principles of the same consolidation degree in the foundation in average for both types of drains. During the model tests, the construction processes are also simulated by loading dike materials layer by layer. Laser displacement sensors are installed for settlement measurement. Based on the test data, the final settlement of the dike is estimated by using the empirical hyperbolic method. The consolidation degree of the foundation over time is also calculated by getting the average consolidation degrees of the sludge and the sand under the dike. By comparing the simulated consolidation degree of the soft foundation after 5 years operation based on the test results of settlement with that of the theoretical calculation, it is shown that the proposed simulation method for vertical strip drains is feasible and acceptable. © 2017, Editorial Office of Chinese Journal of Geotechnical Engineering. All right reserved.

引用

页码：171 / 176

页数：5

共 14 条

[1]

Hou Y.-J., Han L.-B., Liang J.-H., Centrifuge modeling of sea dike and pile groups in a harbor, Chinese Journal of Geotechnical Engineering, 26, 5, pp. 594-600, (2004)

[2]

Bao C.-G., Cai Z.-Y., Chen Y.-M., Et al., The principle and engineering application of geotechnical centrifuge modeling technology, (2011)

[3]

Lu G.-S., Centrifuge experiment to improve soft foundation through plastic wick drain, Journal of Southwest University of Science and Technology, 21, 4, pp. 43-45, (2006)

[4]

Rao X.-B., Gong B.-W., Cheng Z.-L., Et al., The research of settlement deformation law of a certain highway soft foundation based on the centrifugal model test, The Physical Simulation Technology Application in Geotechnical Engineering, the Monograph of Academic Annual Conference Held by Chinese Hydraulic Engineering Society in 2007., pp. 119-125, (2007)

[5]

Jiang G.-L., Hu R.-Z., Li A.-H., Feasibility of predicting settlement of medium compression soil foundation with centrifuge model test, Journal of Traffic and Transportation Engineering, 11, 6, pp. 18-23, (2011)

[6]

Chen S.-L., Zhang J.-M., Zhang B.-Y., Et al., Numerical simulation of centrifugal model test on reinforced embankment with lime-stabilized soil as backfill on soft clay foundation, Chinese Journal of Rock Mechanics and Engineering, 27, 5, pp. 804-806, (2006)

[7]

Hou Y.-J., Centrifugal modeling of the plastic plank in soft foundation treatment, Dam Observation and Geotechnical Tests, 19, 5, pp. 18-20, (1995)

[8]

Gao C.-S., Zhang L., Wang Z.-J., Et al., Equivalent diameter of prefabricated drain, Hydro-science and Engineering, 4, pp. 43-45, (2002)

[9]

Kong D.-J., Miao Z.-H., The analysis on variation of pore water pressure during consolidating soft soil foundation, Port Engineering Technology, 3, pp. 29-31, (2000)

[10]

Cheng Q., Gu L.-J., Feng W.-J., The method of calculating the final settlement by the measured settlement curve, Haihe Water Resouces, 4, pp. 37-39, (2010)

← 1 2 →