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网状及条带式加筋土挡墙加筋应变的测试
引用本文:高江平,胡长水,俞茂宏.网状及条带式加筋土挡墙加筋应变的测试[J].长安大学学报(自然科学版),2004,24(5):24-26.
作者姓名:高江平  胡长水  俞茂宏
作者单位:1. 西安交通大学,建筑力学学院,陕西,西安,710049;长安大学,特殊地区公路工程教育部重点实验室,陕西,西安,710064
2. 西安市交通局,陕西,西安,710004
3. 西安交通大学,建筑力学学院,陕西,西安,710049
摘    要:通过对网状及条带式加筋土挡墙大型模型试验加筋拉应变的测试分析,发现条带式与网状加筋的拉应变自墙背沿加筋长度逐渐减小;在离墙面相同距离处,条带式加筋的拉应变比筋网中筋肋的拉应变大得多;各层加筋的应力水平均随超载的增大而提高,随着超载的增大,条带式加筋前、中部的拉应力增长幅度很大,其后部拉应力增幅较小;而筋网的总体应力水平均有比较均匀的提高,提高的幅度自前部向后端逐渐减小,这说明网状加筋比条带式加筋更适合于修筑加筋土挡墙。

关 键 词:道路工程  加筋土挡墙  网状加筋  条带式加筋  拉应变
文章编号:1671-8879(2004)05-0024-03
修稿时间:2003年6月3日

Testing of pulling strains of both striped and netted reinforcement wall
GAO Jiang-ping.Testing of pulling strains of both striped and netted reinforcement wall[J].JOurnal of Chang’an University:Natural Science Edition,2004,24(5):24-26.
Authors:GAO Jiang-ping
Institution:GAO Jiang-ping~
Abstract:By analyzing the pulling strains of both striped and netted reinforcement wall,it is found that the pulling strains are both decreasing gradually with the position from wall back to its end. At the same distance, the pulling strains of the striped one are greater than that of the netted one. With the surcharge load increasing, the stress level of every layer reinforcement becomes higher and the increasing extent of the pulling stress in the front-mid part of striped reinforcement is very higher, and it is smaller in the behind part of that. The total stress level in netted reinforcement increases uniformly, and increasing extent becomes gradually smaller and smaller.These results show that the netted reinforcement is more suitable for building reinforced wall than the striped one.
Keywords:road engineering  reinforcement wall  netted reinforcement  striped reinforcement  pulling strain
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