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首页> 外文期刊>Bulletin of Earthquake Engineering >Triaxial tests on undisturbed gravelly soils from the Sicilian shore of the Messina Strait
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Triaxial tests on undisturbed gravelly soils from the Sicilian shore of the Messina Strait

机译：墨西拿海峡西西里海岸原状砾石土的三轴试验

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The paper reports the results of laboratory testing of dense sandy gravel carried out on large dimension undisturbed samples, obtained by means of in situ freezing technique. The specimens, 290 mm in diameter and 600 mm high, have been subjected to undrained cyclic triaxial tests carried out in isotropically and anisotropically consolidated conditions aimed at investigating sandy gravel susceptibility to cyclic mobility and plastic strain accumulation during earthquake induced vibrations. The quality of the undisturbed samples was corroborated by comparing the field shear wave velocities against those inferred from bender element tests, carried out in the triaxial apparatus after the specimen consolidation. The cyclic tests were supported by a series of monotonic undrained and drained triaxial tests performed on isotropically and anisotropically consolidated specimens to help in their more rational interpretation. The tests yielded valuable information as to the susceptibility of the sandy gravel in hands to cyclic mobility and plastic strain accumulation during earthquake loading.
机译：本文报道了通过原位冷冻技术对大尺寸未扰动样品进行致密砂砾砾石的实验室测试结果。这些标本直径290毫米，高600毫米，已在各向同性和各向异性固结条件下进行了不排水的循环三轴试验，旨在研究砂砾砾石对地震引起的振动过程中循环运动和塑性应变累积的敏感性。通过将场剪切波速度与样品固结后在三轴仪中进行的弯曲元件测试得出的结果进行比较，可以证实未受干扰样品的质量。循环试验得到了对各向同性和各向异性固结试样进行的一系列单调不排水和排水三轴试验的支持，以帮助他们进行更合理的解释。这些测试提供了有价值的信息，说明手中的沙砾在地震荷载作用下对循环运动和塑性应变累积的敏感性。

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