【摘要】 灰土挤密桩主要通过对桩间土的挤密、侧向约束及桩体的承载作用来提高复合地基的承载力;通过重型击实和无侧限抗压强度试验,确定采用灰土比为2∶8、含水率为20%的灰土进行灰土桩的施工;桩身和桩间土现场取样检测结果表明,灰土挤密桩能够有效改善湿陷性黄土的力学性能,提高地基承载能力。更多还原

【Abstract】 Through the heavy compaction and unconfined compression strength test, this paper determined to use the lime soil ratio of 2 ∶8 and moisture content of 20% for lime soil pile construction. Through the field sampling test of pile and the soil between piles, the results showed that the lime soil compaction pile could effectively improve the mechanical properties of collapsible loess and the bearing capacity of foundation.更多还原