网络交友Hollow cylinder apparatus for testing unbound granular materials of pavements 期刊名称： Road Materials & Pavement Design
作者： Bernardo Caicedo,Manuel Ocampo,Luis Vallejo,Julieth Monroy沧州师专
美国共同基金
作者机构： Universidad de los Andes,Pontificia Universidad Javeriana,University of Pittsburgh
年份： 2012年
青岛
期号： 第3期
反应停关键词： granular materials; hollow cylinder apparatus; rotation of stresses;
园林快题设计pavements
摘要：Unbound granular materials used in pavement structures are subjected to a complex stress path which includes rotational stresses. Hollow cylinder apparatuses (HCAs) are suitable laboratory devices for reproducing stress paths found in the field. However, as the size of the HCA depends on the size of
the granular particles, their use for testing unbound granular materials for pavements has not been reported in the literature. This paper presents the development of a new large size hollow cylinder apparatus designed to study the response of unbound granular materials subjected to stress rotation. This large HCA has hydraulic actuators for vertical movement and torsion while shear and vertical stresses are servo-controlled to reproduce stress paths produced by a heavy vehicle moving on a pavement structure. Confining stress
豫公网安备41160202000603
站长QQ:729038198
关于我们
投诉建议