土石混合料的工程综合分类法研究

›› 2007, Vol. 28 ›› Issue (1): 179-184.

土石混合料的工程综合分类法研究

董云^{1, 2}，柴贺军³

1.淮阴工学院建筑工程系，江苏淮安 223001；2.河海大学岩土工程研究所，南京 210097 3.重庆交通科研设计院，重庆 400067

收稿日期:2005-03-09 出版日期:2007-01-10 发布日期:2013-08-28
作者简介:董云，男，1974年生，博士生，讲师，主要从事道路工程、岩土工程的教学和科研工作
基金资助:
交通部西部建设科技项目（No. 200231800034），河海大学学生科技基金项目（No. 2006-57）。

Study on engineering synthetical classification of rock-soil aggregate mixture

DONG Yun^{1, 2}, CHAI He-jun³

1. Department of Civil Engineering, Huaiyin Institute of Technology, Huaian 223001, China; 2. Research Institute of Geotechnical, Hohai University, Nanjing 210097, China; 3. Chongqing Communication Research and Design Institute, Chongqing 400067, China

Received:2005-03-09 Online:2007-01-10 Published:2013-08-28

摘要/Abstract

摘要： 随着土石混合料越来越广泛地被道路、堤坝、基础等工程采用，快速、准确地预测其抗剪强度指标不仅有利于设计、计算，也有利于施工方案的制定和压实方法的选择。土石混合料的物理力学性质本质上是由颗粒的性质和其内部结构决定的，而现有的土石混合料的分类多从颗粒粒径和含量进行分类，无法从分类上判断其物理力学性质指标。通过室内击实试验、颗粒分析试验、剪切试验，结合非线性的分形几何学原理，对土石混合料进行以工程应用为目的的分类研究，提出了以岩性、含石量和混合料的颗粒组成分形为分类指标的土石混合料工程综合分类法，将土石混合料按3个层次划分为24类，并由试验指出不同类别土石混合料物理力学性质的差异。该综合分类法分类指标简单，指标确定方便，易于实际应用，并可根据分类预测混合料的物理力学性质。

关键词: 土石混合料, 工程分类, 含石量, 粒度分布, 分形维

Abstract: Preestimate the intensity of rock-soil aggregate mixture quickly and accurately is not only helpful to design and calculate, but also to establish the construction scheme and choose properly compaction method, while the rock-soil aggregate mixture are broadly used in roadbeds, dykes and dams, and foundation engineering. The physico-mechanical character of the mixture are essentially determinated by the granule property of the mixture and the interior frame of the mixture, but the classification existed are always set about from the grain composition, it is hardly to predict the character of the mixture from the classification. Aimed at the engineering application, studied the classification method of the mixture supported by the results of lab shear test and compaction test, and utilized the nonlinear theory of fractal geometry, this article assorted the mixture into 3 levels and 24 kinds according to the property of rock and soil, the ratio of rock to soil and the granularity distribution fraction dimension of the mixture, to present the diversity on characters of different kinds of mixtures meanwhile. This synthetical classification method is prone to apply in practice for the criterion of this method is simple and it can be determined conveniently; and the representative strength of different kinds of mixtures could be quickly predict through this classification method.

Key words: rock-soil aggregate mixture, engineering classification, ratio of rock to soil, granularity distribution, fractal dimension

中图分类号:

TU 47

董云，柴贺军. 土石混合料的工程综合分类法研究[J]. , 2007, 28(1): 179-184.

DONG Yun, CHAI He-jun. Study on engineering synthetical classification of rock-soil aggregate mixture[J]. , 2007, 28(1): 179-184.

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