| 断层破碎带千枚岩填筑路基工程特性试验研究 |
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| 引用本文： | 鲁道洪.断层破碎带千枚岩填筑路基工程特性试验研究[J].岩土工程技术,2012,26(2):86-89,F0003. |
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| 作者姓名： | 鲁道洪 |
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| 作者单位： | 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;绵阳市川交公路规划勘察设计有限公司,四川绵阳621000 |
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| 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。
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| 关 键 词： | 断层破碎带 干枚岩 崩解性 路基填料 |
Engineering Characteristics of Filling Subgrade With Phyllite in Fault Fracture Zone |
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| Lu Daohong.Engineering Characteristics of Filling Subgrade With Phyllite in Fault Fracture Zone[J].Geotechnical Engineering Technique,2012,26(2):86-89,F0003. |
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| Authors: | Lu Daohong |
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| Institution: | Lu Daohong1＇2 (1. State Key Laboratory of Geo-Hazard Prevention and Geo-Environment Protection, Chengdu University of Technology, Chengdu 610059, Sichuan,China 2. Mianyang Chuanjiao Highway Survey and Design Company, Mianyang 621000, Sichuan,China) |
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| 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. |
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| Keywords: | fault zone Phyllite slaking property subgrade fill |
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