- Indexed in Scopus
- Source Journal for Chinese Scientific and Technical Papers and Citations
- Included in A Guide to the Core Journal of China
- Indexed in Ei Compendex
| Citation: |
LI Zi-xi, LUO Fang-yue, ZHANG Ga. Centrifugal model tests on micro-pile-reinforced shallow foundation[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(S2): 56-59. DOI: 10.11779/CJGE2021S2013
|
Micro-piles are widely used in geotechnical projects such as foundation reinforcement. The centrifugal model tests are conducted on the micro-pile-reinforced and unreinforced shallow foundations during vertical loading. The deformations of the foundation and soil base are observed and compared for the micro-pile reinforcement effect. The test results show that the micro-piles transfer the vertical loads to the bearing stratum. The micro-piles bear the loads with a proportion of more than 75%. The micro-piles significantly decrease the settlement of shallow foundation and cause the soil deformation to a more uniform distribution. The micro-piles influence the soil deformation within a zone with a 1.5 times the width of the shallow foundation. The depth of the load influence zone decreases if the micro-piles are used. The new findings may provide references for the applications of micro-piles in practice.
| [1] |
孙书伟, 朱本珍, 马惠民, 等. 微型桩群与普通抗滑桩抗滑特性的对比试验研究[J]. 岩土工程学报, 2009, 31(10): 1564-1570. https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC200910021.htm
SUN Shu-wei, ZHU Ben-zhen, MA Hui-min, et al. Model tests on anti-sliding mechanism of micropile groups and anti-sliding piles[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(10): 1564-1570. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC200910021.htm
|
| [2] |
JURAN H, BENSLIMANE A, BRUCE D A. Slope stabilization by micropile reinforcement[J]. Landslides, 1996: 1718-1726.
|
| [3] |
BORTHAKUR N, DEY A K. Evaluation of group capacity of micropile in soft clayey soil from experimental analysis using SVM-based prediction model[J]. International Journal of Geomechanics, 2020, 20(3): 4020008. doi: 10.1061/(ASCE)GM.1943-5622.0001606
|
| [4] |
ZHANG S J. A mechanism analysis of pile-soil interaction of micro-pile in building heightening and transformation[J]. Applied Mechanics and Materials, 2014, 501/502/503/504: 258-262.
|
| [5] |
TURAN A, HAFEZ D, EL NAGGAR M H. The performance of inclined secant micro-pile walls as active vibration barriers[J]. Soil Dynamics and Earthquake Engineering, 2013, 55: 225-232. doi: 10.1016/j.soildyn.2013.09.003
|
| [6] |
龚健, 陈仁朋, 陈云敏, 等. 微型桩原型水平荷载试验研究[J]. 岩石力学与工程学报, 2004, 23(20): 3541-3546. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX200420032.htm
GONG Jian, CHEN Ren-peng, CHEN Yun-min, et al. Prototype testing study on micropiles under lateral loading[J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(20): 3541-3546. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX200420032.htm
|
| [7] |
HUANG F Y, SHAN Y L, HE L F, et al. The mechanical behavior of predrilled-hole concrete micro-pile in integral abutment jointless bridges (IAJBs)[C]//2020 International Conference on Intelligent Transportation(ICITBS), Vientiane, 2020: 399-404.
|
| [8] |
WANG L P, ZHANG G. Centrifuge model test study on pile reinforcement behavior of cohesive soil slopes under earthquake conditions[J]. Landslides, 2014, 11(2): 213-223. doi: 10.1007/s10346-013-0388-2
|
| [9] |
LIU S J, LUO F Y, ZHANG G. Centrifuge model tests on pile-reinforced slopes subjected to drawdown[J]. Journal of Rock Mechanics and Geotechnical Engineering, 2020, 12(6): 1290-1300. doi: 10.1016/j.jrmge.2020.02.006
|
| [10] |
ZHANG G, HU Y, ZHANG J M. New image analysis-based displacement-measurement system for geotechnical centrifuge modeling tests[J]. Measurement, 2009, 42(1): 87-96. doi: 10.1016/j.measurement.2008.04.002
|
| [1] | LI Guang-xin. Load and resistance in stability analysis of geotechnical engineering with safety factor method[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(5): 918-925. DOI: 10.11779/CJGE202105016 |
| [2] | SUN Chao-wei, CHAI Jun-rui, XU Zeng-guang, QIN Yuan, LI Gang. Stability charts for determining safety factors of 3D homogeneous slopes[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(11): 2068-2077. DOI: 10.11779/CJGE201811013 |
| [3] | JIANG Shui-hua<sup>1, 2</sup>, LI Dian-qing<sup>1, 2</sup>, ZHOU Chuang-bing<sup>1, 2</sup>. Non-intrusive stochastic finite element method for slope reliability analysis based on Latin hypercube sampling[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 70-76. |
| [4] | LI Da-yong, GUO Yan-xue, GAO Yu-feng. Principle and application of pole point method of Mohr's circle[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(10): 1883-1888. |
| [5] | GUO Yang, KE Zhai-bang. Practical research on detecting cracks in pipe piles using stress wave method[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(sup2): 159-162. |
| [6] | MA Yongzheng, ZHENG Hong, ZHU Hehua, CAI Yongchang. Effect of cohesion on evaluating slope stability factor of safety by DDA method[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(7): 1088-1093. |
| [7] | CHEN Wei, WANG Junxing, XIN Liping, ZHANG Wei. Lower bound method of plastic limit analysis for wedge stability[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(3): 431-436. |
| [8] | LI Liang, CHI Shichun, LIN Gao. A new kind of complex method and its application to the search for the critical failure surface[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(4): 448-452. |
| [9] | ZHENG Hong, LI Chunguang, Lee C.F., GE Xiurun. Finite element method for solving the factor of safety[J]. Chinese Journal of Geotechnical Engineering, 2002, 24(5): 626-628. |
| [10] | YANG Mingcheng, ZHEN Yingren. Local minimum factor-of-safety method based on limit equilibrium theory[J]. Chinese Journal of Geotechnical Engineering, 2002, 24(5): 600-604. |
Supported by: Beijing Renhe Information Technology Co., Ltd. 
DownLoad: