断层破碎带千枚岩填筑路基工程特性试验研究
摘要:针对"5·12"地震后,位于北川地区断层破碎带的千枚岩作为路基填料特有的材料,对破碎的千枚岩进行化学成分、物理性质、崩解性等试验。初步认为可以作为路基的底层填料,点荷载强度与多因素有关;破碎千枚岩中的粘土矿物含量与崩解程度有很大关系,压实工程特性与颗粒粗细的相对含量密切相关。根据施工现场试验监测结果表明,通过研究确定的压实工艺可将千枚岩压实到要求的密度,其物理、力学性质得到改善,满足路基要求。
Abstract:After the ‘5 ·12’ Wenchuan earthquake, Phyllite in the fault zone of the Beichuan County was used as the subgrade fill, and tests were conducted on the chemical composition. Physical property and slaking of the fractured Phyllite. Results showed that Phyllite can be used as the bottom fill of the subgrade, and its point load strength is correlated to many factors. Durability of slaking much depends on the contents of clay mineral of the fractured Phyllite, and compaction property is closely related to the relative of different particle sizes. According to the monitoring data on site, the compaction process determined by research can obtain a expected density of Phyllite and improve the physical and mechanical properties of the rocks, which meets the requirements of the subgrade.
中文标题：
断层破碎带千枚岩填筑路基工程特性试验研究
Engineering Characteristics of Filling Subgrade With Phyllite in Fault Fracture Zone
作者：
鲁道洪1,2
Lu Daohong1,2
作者简介:鲁道洪,1979年生,男,汉族,四川省泸州人,博士研究生,主要从事地质勘察与地质灾害防治研究。E-mail:732399056@qq.com;通讯地址:四川绵阳市迎宾路70#公路设计院。
通讯地址：
1. 成都理工大学 地质灾害防治与地质环境保护国家重点实验室, 四川成都 610059; 2. 绵阳市川交公路规划勘察设计有限公司, 四川绵阳 621000
1.StateKeyLaboratoryofGeo-HazardPreventionandGeo-EnvironmentProtection,ChengduUniversityofTechnology,Chengdu610059,Sichuan,China; 2.MianyangChuanjiaoHighwaySurveyandDesignCompany,Mianyang621000,Sichuan,China
中图分类号:TU441
doi:10.3969/j.issn.1007-2993.2012.02.008
出版物：岩土工程技术
收稿日期:2012-02-22
网络出版日期:2021-07-06
关键词:断层破碎带,千枚岩,崩解性,路基填料
Key words:fault zone,Phyllite,slaking property,subgrade fill
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