曲率系数及含水率对粗粒土击实特性影响试验研究  

Experimental Study on the Influence of Curvature Coefficient and Moisture Content on the Compaction Characteristics of Coarse-Grained Soil

作　　者：王金华 王玺鑫 魏黄薇 陈邦霖 潘鸿 叶利涵 Wang Jinhua;Wang Xixin;Wei Huangwei;Chen Banglin;Pan Hong;Ye Lihan(School of Civil Engineering and Architecture,Wuyi University,Wuyishan,Fujian 354300,China;Fujian University Engineering Research Center for the Prevention and Control of Geological Hazards in Northern Fujian,Wuyishan,Fujian 354300,China)

机构地区：[1]武夷学院土木工程与建筑学院,福建武夷山354300 [2]闽北山地地质灾害防治福建省高校工程研究中心,福建武夷山354300

出　　处：《黑龙江工业学院学报(综合版)》2025年第1期142-145,共4页Journal of Heilongjiang University of Technology(Comprehensive Edition)

基　　金：福建省自然科学基金“基于人工智能与BIM技术相结合的闽北地区高陡边坡稳定性研究”(项目编号:2021J011134);武夷学院科技创新发展基金“武夷新区绕城高速公路桥梁全流程BIM技术应用研究-以上黄墩大桥为例”(项目编号:N2017Y05);大学生创新创业训练计划项目(国家级)“大于限制粒径颗粒级配对粗粒土物理力学特性影响规律研究”(项目编号:202310397017)。

摘　　要：为了研究不同因素对粗粒土击实特性的影响规律,在室内实验室中进行一系列不同含石率、不同曲率系数、不同含水率的粗粒土击实试验。试验结果表明:在相同击实功作用下,粗粒土的最优含水率随含石率的增加而逐渐减小,含石率相同时,最优含水率总体表现为随曲率系数增加而减小,干密度随含石率的增加而增大;随着含石率的增加,含水率对粗粒土干密度的影响随曲率系数的增加先增加而后减小;当含石率和击实功相同时,不同曲率系数的粗粒土干密度均表现出随含水率的增加先增大后减小的趋势;在相同含石率时,粗粒土击实后干密度总体表现出随曲率系数的增大而减小。In order to study the influence law of different factors on the compaction characteristics of coarse-grained soil,a series of compaction tests of coarse-grained soil with different stone content,different curvature coefficient and different water content were carried out in the laboratory.The test results show that under the same compaction work,the optimal water content of coarse-grained soil decreases with the increase of stone content,when the stone content is the same,the optimal moisture content decreases with the increase of curvature coefficient,and the dry density increases with the increase of stone content.With the increase of stone content,the influence of water content on the dry density of coarse-grained soil increases first and then decreases with the increase of curvature coefficient.When the stone content and compaction work are the same,the dry density of coarse-grained soil with different curvature coefficients shows a trend of increasing first and then decreasing with the increase of water content.At the same stone content,the dry density of coarse-grained soil after compaction generally decreases with the increase of curvature coefficient.

关 键 词：含石率 曲率系数 含水率 粗粒土 击实特性 

分 类 号：TU502[建筑科学—建筑技术科学]