| 轻量土及其在工程中的应用 |
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| 引用本文： | 徐光黎,杨银湖.轻量土及其在工程中的应用[J].地质科技情报,2005,24(4):94-98. |
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| 作者姓名： | 徐光黎 杨银湖 |
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| 作者单位： | 中国地质大学工程学院,武汉,430074;中国地质大学研究生院,武汉,430074 |
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| 基金项目： | 中国科学院资助项目，中国地质大学校科研和教改项目 |
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| 摘 要： | 轻量土可以分为发泡聚苯乙烯(EPS)块、发泡颗粒混合轻量土、气泡混合轻量土(FCB)和次生材料混合轻量土4种类型.根据其湿密度的不同,又可以将轻量土分为超轻量土、轻量土和准轻量土3个大类.由于轻量土具有轻量性、自立性、流动性、隔热性、耐水性、耐久性等特性,可以大幅度减小上部荷载和土压力.因此,在软土地基、山区陡峻斜坡的路基、桥涵等工程中得到了广泛的应用.在目前的实际设计和施工中,轻量土的设计可以参照国外的有关规程或手册.
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| 关 键 词： | 发泡聚苯乙烯 发泡颗粒轻量土 气泡混合轻量土 软土 |
| 文章编号： | 1000-7849(2005)04-0094-05 |
| 收稿时间： | 2004-12-02 |
| 修稿时间： | 2004年12月2日 |
Light-Weight Soils and Their Applications |
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| XU Guang-li,YANG Yin-hu.Light-Weight Soils and Their Applications[J].Geological Science and Technology Information,2005,24(4):94-98. |
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| Authors: | XU Guang-li YANG Yin-hu |
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| Institution: | 1. Engineering Faculty ;2. Graduate School, China University of Geosciences , Wuhan 430074, China |
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| Abstract: | Light-weight soils can be classified as EPS, foamed cement light-weight soil particle light soil, FCB and secondary material light-weight soil. According to wet density, they can also be divided into super light soil, light soil and qusi-light soil. This paper first gives a review of the historic development of the light-weight soils and then introduces their applications. If the light-weight soils are used, overburden loads and lateral earth pressure can be largely reduced because of their light-weight, stability, durability and easy construction. Nowadays, they are widely used in road, bridge embankments in the soft soil area and mountain area with steep slope. They are often used as an emergency measure, such as road embankment and slope repair. Also the paper outlines some contents of design of light-weight soils. Finally, it suggests that Japanese specifications or manuals for design are valuable to refer for current practice. |
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| Keywords: | EPS foamed particle light-weight soil foamed cement banking soft soil |
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