黄土的湿陷性与击实试验指标关系研究

Abstract

Abstract:

Loess collapsibility test and compaction test have been carried out. The concept of compaction rate is suggusted. The classification and regression trees (CART) algorithm is improved; and is used for analyzing the correlative (data) mining. The correlative mining has been performed to undisturbed loess collapsibility and index of compaction test. The results of correlative mining indicates that coefficient of collapsibility is closely correlated to the compaction rate, but significantly in negative correlation with the collapsibility coefficients. In the compaction process, the closer the soil water content is to the optimal water content, the stronger this correlation is. Finally, this paper presents a viewpoint that undisturbed loess collapsibility is correlated with the engineering property of the compaction loess, and undisturbed loess collapsibility can be evaluated with deformation property of disturbed loess samples. This is a new method of evaluating loess collapsibility.

Key words: collapsibility, compaction rate, decision trees, correlation mining, negative correlation

CLC Number:

TU 444

JING Yan-lin, WU Yan-qing, LIN Du-jun, HU Zhi-ping, LI Xiao-guang, ZHANG Zh. Study of relationship between loess collapsibility and index of compaction test[J]., 2011, 32(2): 393-0397.

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Study of relationship between loess collapsibility and index of compaction test

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