Soil disturbance from pile driving in sensitive clay
Soil disturbance from pile driving in sensitive clay
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DOI：
10.1139/t78-032
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发表时间：
1978-08
影响因子：
3.6
通讯作者：
M. Bozozuk;B. Fellenius;L. Samson
中科院分区：
文献类型：
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作者：
M. Bozozuk;B. Fellenius;L. Samson
在加拿大东部的一个建设项目中，研究了在敏感的海洋粘土中打入两组116根混凝土桩对土壤的干扰。孔隙水压力，隆起，和土壤和桩的横向运动，强度，压缩性和土壤的一致性限制的测试之前和打桩后3个月进行观察，而孔隙水压力的观察持续了额外的5个月。打桩对海洋粘土的压缩性和稠度极限影响不大，但原位抗剪强度和锥贯入阻力分别降低了约15%和30%。桩组内的土壤隆起随深度线性下降，最大值为450 mm（18 in.）在地面上，桩尖处约为零，体积约为桩所取代土壤的55%。桩群外的垂直隆起被限制在12 m（39桩直径）的水平距离内。在P…
Soil disturbance due to the driving of two groups of 116 concrete piles each in sensitive marine clay was studied on a construction project in eastern Canada. Pore-water pressures, heave, and lateral movement of soil and piles, and tests of strength, compressibility, and consistency limits of the soil were observed prior to and up to 3 months after pile driving whereas observations of pore-water pressures were continued for an additional 5 months. Driving of the piles had little effect on the compressibility and consistency limits of the marine clay, but the in situ shear strength and cone penetration resistance were reduced by about 15 and 30%, respectively. Soil heave within the group of piles decreased linearly with depth from a maximum of 450 mm (18 in.) at the ground surface to about zero at the pile tips, and in volume amounted to approximately 55% of the soil displaced by the piles. The vertical heave outside the pile group was confined to a horizontal distance of 12 m (39 pile diameters). During p...