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Abstract: A series of unconfined compressive strength tests of cemented soil and a model test of a pre-bored grouted planted nodular (PGPN) pile were conducted to investigate the effect of cemented soil properties on the behavior of PGPN piles under compression. The load-displacement response, axial force, and tip resistance were measured during the loading process. Several conclusions could be drawn by comparing the results of the present model test with those of a previous test: the compressive bearing capacity of the PGPN pile was enhanced by increasing the cemented soil strength; the ultimate skin friction of the PGPN pile was increased to 1.06–1.36 times when the strength of the cemented soil along the pile shaft increased from 0.706 MPa to 1.21 MPa; the ultimate mobilized base load was increased to 1.42 times when the strength of the cemented soil at the enlarged base increased from 11.10 MPa to 16.02 MPa.

水泥土性质对静钻根植竹节桩抗压承载性能影响

[1]Clough GW, Duncan JM, 1971. Finite element analysis of retaining wall behavior. ASCE Soil Mechanics & Foundation Division Journal, 97(12):1657-1673.

[2]Desai CS, Drumm EC, Zaman MM, 1985. Cyclic testing and modeling of interfaces. Journal of Geotechnical Engineering, 111(6):793-815.

[3]Doherty P, Gavin K, 2011. Shaft capacity of open-ended piles in clay. Journal of Geotechnical & Geoenvironmental Engineering, 137(11):1090-1102.

[4]Fleming K, Weltman A, Randolph M, et al., 2009. Piling Engineering (3rd Edition), Taylor & Francis, London, UK.

[5]Gavin K, Lehane B, 2003. The shaft capacity of pipe piles in sand. Canadian Geotechnical Journal, 40(1):36-45.

[6]Guo WD, Randolph MF, 1999. An efficient approach for settlement prediction of pile groups. Geotechnique, 49(2):161-179.

[7]Han J, Ye SL, 2006. A field study on the behavior of micropiles in clay under compression or tension. Canadian Geotechnical Journal, 43(1):19-29.

[8]MOHURD (Ministry of Housing and Urban-Rural Development of People’s Republic of China), 2014. Building Pile Testing Technology Code, JGJ 106-2014. MOHURD, Beijing, China (in Chinese).

[9]Kraft LMJ, Ray RP, Kakaaki T, 1981. Theoretical T-Z curves. Journal of the Geotechnical Engineering Division, 107(11):1543-1561.

[10]Lee KM, Xiao ZR, 2001. A simplified nonlinear approach for pile group settlement analysis in multilayered soils. Canadian Geotechnical Journal, 38(5):1063-1080.

[11]O’Neill MW, 2001. Side resistance in piles and drilled shafts. Journal of Geotechnical & Geoenvironmental Engineering, 127(1):3-16.

[12]Poulos HG, 1968. Analysis of the settlement of pile groups. Geotechnique, 18(4):449-471.

[13]Randolph MF, 2003. Science and empiricism in pile foundation design. Geotechnique, 53(10):847-875.

[14]Randolph MF, Wroth CP, 1978. Analysis of deformation of vertically loaded pile. Journal of the Geotechnical Engineering Division, 104(12):1465-1488.

[15]Randolph MF, Wroth CP, 1979. An analysis of the vertical deformation of pile groups. Geotechnique, 29(4):423-439.

[16]Randolph MF, Wroth CP, 1981. Application of the failure state in undrained simple shear to the shaft capacity of driven piles. Geotechnique, 31(1):143-157.

[17]Zhou JJ, Wang KH, Gong XN, et al., 2013. Bearing capacity and load transfer mechanism of a static drill rooted nodular pile in soft soil areas. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 14(10):705-719.

[18]Zhou JJ, Gong XN, Wang KH, et al., 2015. A field study on the behavior of static drill rooted nodular piles with caps under compression. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 16(12):951-963.

[19]Zhou JJ, Wang KH, Gong XN, et al., 2016. A model test on the behavior of a static drill rooted nodular pile under compression. Marine Georesources & Geotechnology, 34(3):293-301.

[20]Zhou JJ, Gong XN, Wang KH, et al., 2017a. A simplified nonlinear calculation method to describe the settlement of pre-bored grouting planted nodular piles. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 18(11):895-909.

[21]Zhou JJ, Gong XN, Wang KH, et al., 2017b. Testing and modelling the behavior of pre-bored grouting planted nodular pile under compression and tension. Acta Geotechnica, 12(5):1061-1075.