透水性基床级配碎石填料宏细观压实特性试验研究

doi:10.13722/j.cnki.jrme.2021.0912

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (2260 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要透水性级配碎石填料因其良好的渗透性而逐渐用于透(排)水性基床结构层，其压实质量直接影响路面结构工后变形和耐久性等关键服役性能。针对由颗粒堆积理论提出的石砂比(G/S)指标所设计的7种不同的透水性级配，分别开展室内重型击实和新型平板振动压实试验，研究级配、压实方式和能量水平等因素对碎石填料宏观压实特性和颗粒破碎的影响以及平板振动压实的最优激振参数组合，提出并初步验证对同种类型填料级配、压实方法和能量等的改变不敏感的干密度–饱和度归一化压实曲线；进一步采用高精度工业XCT扫描技术，从细观尺度对比研究了最优激振参数组合下不同级配的碎石填料试样内部颗粒运动、空隙分布和连通性特征等。结果表明：石砂比(G/S)指标级配设计方法可有效地区分透水性级配碎石填料不同的颗粒堆积结构类型，存在最优G/S值范围可使压实后的干密度最大、颗粒破碎程度最低和空隙结构最佳；平板振动压实下干密度随激振时间呈现3个不同的阶段，最优激振频率范围为25～27 Hz，且存在有效的激振时间和激振力组合，XCT扫描结果从细观层面分析不同阶段颗粒的运动规律验证宏观压实特性的变化规律，对比不同级配的空隙分布和连通性证实石砂比(G/S)指标控制颗粒堆积结构类型的有效性；提出的干密度–饱和度归一化压实曲线可更准确地评价和控制现场压实施工质量。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	王萌1
	于群丁1
	2
	肖源杰1
	3
	李文奇1
	华文俊1
	王小明1
	陈晓斌1
	3

关键词 ：土力学, 透水性基床级配碎石, 平板振动压实, 饱和度, 颗粒破碎, 颗粒运动, 空隙结构

Abstract：Unbound permeable aggregate base(UPAB) materials are increasingly used in foundation layers of porous or permeable pavements due to their desired drainage performance. The compaction quality of such layers directly affects critical in-service performance including post-construction settlement and durability. This paper conducted both conventional impact and newly-developed vibratory plate compaction tests on such UPAB materials Seven different UPAB gradations were designed by using the gravel-to-sand ratio(G/S) concept to represent different types of packing structures. The effects of gradation，compaction method and corresponding energy level on macroscopic compaction characteristics and particle breakage were studied. The optimal combination of vibratory parameters was identified. The normalized curves of achieved dry density versus degree of saturation were proposed and verified preliminarily. Such normalized curves are insensitive to variations in gradation，compaction method and energy level for similar aggregate types. The high-precision X-ray CT(XCT) scanning technology was employed to comparatively study meso-scale characteristics of particle movement，internal pore structure and connectivity of UPAB specimens with different gradations and vibratory parameters. It was found that the G/S concept-based gradation design method can effectively differentiate UPAB packing structures. There appeared to exist an optimal G/S range in terms of desired achieved dry density，particle breakage，and pore structure. The achieved dry density versus time curves of UPAB specimens obtained from vibratory compaction tests exhibited three distinct stages. The optimal vibratory frequency was found to range from 25 to 27 Hz，whereas there existed the most effective combination of vibratory force and duration time that yields the greatest dry density. The XCT results further substantiated macro-scale compaction characteristics. The curves of normalized achieved dry density versus degree of saturation could be useful for improved evaluation and control of field compaction quality of such UPAB layers in engineering practice.

Key words： soil mechanics unbound permeable aggregate base materials vibratory plate compaction degree of saturation particle breakage particle movement pore structure

引用本文:

王萌1，于群丁1，2，肖源杰1，3，李文奇1，华文俊1，王小明1，陈晓斌1，3. 透水性基床级配碎石填料宏细观压实特性试验研究[J]. 岩石力学与工程学报, 2022, 41(8): 1701-1716.
WANG Meng1，YU Qunding1，2，XIAO Yuanjie1，3，LI Wenqi1，HUA Wenjun1，WANG Xiaoming1，CHEN Xiaobin1，3. Experimental investigation of macro-and meso-scale compaction characteristics of unbound permeable base materials. , 2022, 41(8): 1701-1716.

链接本文:

http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2021.0912 或 http://rockmech.whrsm.ac.cn/CN/Y2022/V41/I8/1701

[30]	周浩，水泥稳定碎石材料振动压实效应研究[博士学位论文][D].西安：长安大学，2013.(ZHOU Hao. Research on the vibratory compaction effect of cement stabilized aggregate[Ph. D. Thesis][D]. Xi?an：Chang?an University，2013.(in Chinese))
[33]	李军，周志立，李言. 路基土壤固有频率与密实度关系的测试分析[J]. 农业工程学报，2012，28(14)：71–76.(LI Jun，ZHOU Zhili，LI Yan. Test and analysis of the relationship between natural frequency and compactness of subgrade soil[J]. Transactions of the Chinese Society of Agricultural Engineering，2012，28(14)：71–76.(in Chinese))
[36]	WILDE W J，EROL T，XIAO Y J，et al. Optimizing stability and stiffness through aggregate base gradation[J]. Transportation Research Record：Journal of Transportation Research Board，2016，2578(1)：12–20.
[37]	QAMHIA I I A，TUTUMLUER E. Review of improved subgrade and stabilized subbases to evaluate performance of concrete pavements[Ph. D. Thesis][D]. Illinois：University of Illinois，2021.
[39]	BYUN Y H，FENG B，QAMHIA I I A，et al. Aggregate properties affecting shear strength and permanent deformation characteristics of unbound-base course materials[J]. Journal of Materials in Civil Engineering，2020，32(1)：1–12.
[41]	郭庆国. 粗粒土的工程特性及应用[M]. 郑州：黄河水利出版社，2007：26–29.(GUO Qingguo. Engineering application of coarse-grained soil[M]. Zhengzhou：The Yellow River Water Conservancy Press，2007：26–29.(in Chinese))
[43]	曾涛，蒋良潍，黄强，等. 室内表面振动压实试验参数控制分析[J]. 四川建筑，2018，38(4)：114–116.(ZENG Tao，JIANG Liangwei，HUANG Qiang，et al. Parameter control analysis of indoor surface vibration compaction test of coarse-grained soil[J]. Sichuan Architecture，2018，38(4)：114–116.(in Chinese))
[46]	MARSAL R J. Large scale testing of rockfill materials[J]. Journal of the Soil Mechanics and Foundations Division，1967，93(2)：27–43.
[47]	FUMIO T，ANTONIO G C. Importance of controlling the degree of saturation in soil compaction linked to soil structure design[J]. Transportation Geotechnics，2018，17：3–23.
[32]	GAVIN R，ROHIT I. Practical application of roller compaction process modeling[J]. Computers and Chemical Engineering，2010，34(4)：1 049–1 057.
[40]	杨玉生，赵剑明，王龙，等.级配特征对筑坝砂砾料填筑标准的影响[J]. 水利学报，2019，50(11)：1 374–1 383.(YANG Yusheng，ZHAO Jianming，WANG Long，et al. The influence of gradation characteristics on the filling standard of sand-gravel materials for dam construction[J]. Journal of Hydraulic Engineering，2019，50(11)：1 374–1 383.(in Chinese))
[42]	王龙，解晓光. 振动压实能力与道路基层材料可压实性评价[J].同济大学学报：自然科学版，2013，41(2)：203–207.(WANG Long，XIE Xiaoguang. Evaluation of vibration compaction ability and road-base materials compaction performance[J]. Journal of Tongji University：Natural Science，2013，41(2)：203–207.(in Chinese))
[35]	XIAO Y J，EROL T. Gradation and packing characteristics affecting stability of granular materials-aggregate imaging based discrete element modeling approach[J]. International Journal of Geomechanics，2017，17(3)：1–18.
[45]	洪亮，刘涛，杨三强. 水泥稳定砾石骨料振动与击实成型对比试验[J]. 重庆交通大学学报：自然科学版，2014，33(6)：674–696. (HONG Liang，LIU Tao，YANG Sanqiang. Comparative experiment on vibrating compaction and modified proctor compaction of silt cement-stabilized gravel aggregate[J]. Journal of Chongqing Jiaotong University：Natural Science，2014，33(6)：674–696.(in Chinese))
[48]	徐慧宁，石浩，谭忆秋. 沥青混合料三维空隙形态特征评价方法及分析[J]. 中国公路学报，2020，33(10)：210–220.(XU Huining，SHI Hao，TAN Yiqiu. Investigation and characterization of 3D void mesostrures in asphalt mixtures[J]. China Journal of Highway and Transport，2020，33(10)：210–220.(in Chinese))
[38]	QAMHIA I I A，CHOW L C，MISHRA D，et al. Dense-graded aggregate base gradation influencing rutting model predictions[J]. Transportation Geotechnics，2017，13：43–51.
[1]	MA G B，LI H，YANG B，et al. Investigation on the deformation behavior of open-graded unbound granular materials for permeable pavement[J]. Construction and Building Materials，2020，260：119800.
[11]	李美江. 道路材料振动压实特性研究[硕士学位论文][D]. 西安：长安大学，2002.(LI Meijiang. Research on vibration compaction characteristics of road materials[M. S. Thesis][D]. Xi?an：Chang?an University，2002.(in Chinese))
[21]	ZHANG Q L，LIU T Y，ZHANG Z S，et al. Compaction quality assessment of rockfill materials using roller-integrated acoustic wave detection technique[J]. Automation in Construction，2019，97：110–121.
[28]	于群丁，王萌，肖源杰，等. 透水性基床级配碎石填料强度变形特性试验研究[J]. 岩石力学与工程学报，2022，41(3)：614–630.(YU Qunding，XIAO Yuanjie，HUA Wenjun，et al. Experimental investigation of strength and deformation characteristics of unbound permeable base materials[J]. Chinese Journal of Rock Mechanics and Engineering，2022，41(3)：614–630.(in Chinese))
[6]	隋吉军. 粗粒土振动压实特性的试验研究[硕士学位论文][D]. 大连：大连理工大学，2003.(SUI Jijun. Experimental study on character of vibration compaction of coarse grained soil[M. S. Thesis][D]. Dalian：Dalian University of Technology，2003.(in Chinese))
[9]	莫石秀. 湖沥青改性沥青作用机制及混合料性能研究[博士学位论文][D]. 西安：长安大学，2012.(MO Shixiu. Research on action mechanism of lake asphalt modified asphalt and mixture performance[Ph. D. Thesis][D]. Xi?an：Chang?an University，2012.(in Chinese))
[16]	金刚. 级配碎石三轴试验研究[硕士学位论文][D]. 大连：大连理工大学，2007.(JIN Gang. Laboratory Study of Triaxial on Graded Broken Stone[M. S. Thesis][D]. Dalian：Dalian University of Technology，2007.(in Chinese))
[19]	何广杰，徐光辉. 碎石材料振动压实特性的试验研究[J]. 西南交通大学学报，2007，42(6)：706–710.(HE Guangjie，XU Guanghui. Experimental investigation on vibrating compaction characteristic of crashed stone[J]. Journal of Southwest Jiaotong University，2007，42(6)：706–710.(in Chinese))
[26]	于群丁. 级配碎石振动压实及变形宏细观特征研究[硕士学位论文][D]. 长沙：中南大学，2021.(YU Qunding. Investigating macro- and meso-scale characteristics of vibratory compaction and deformation behavior of permeable unbound aggregate base materials[M. S. Thesis][D]. Changsha：Central South University，2021.(in Chinese))
[29]	中华人民共和国行业标准编写组. CJJ/T190—2012透水沥青路面技术规程[S]. 北京：中国建筑工业出版社，2012.(The Professional Standards Compilation Group of People?s Republic of China. CJJ/T190—2012 Technical specification for permeable asphalt pavement[S]. Beijing：China Architecture and Building Press，2012. (in Chinese))
[31]	中华人民共和国行业标准编写组 JTG 3430—2020 公路土工试验规程[S]. 北京：人民交通出版社，2020.(The Professional Standards Compilation Group of People?s Republic of China. JTG 3430—2020 Test methods of soils for highway engineering[S]. Beijing：China Communications Press，2020.(in Chinese))
[4]	LU C，LAN Q，LI Q W. Study on dynamic compaction characteristics of gravelly soils with crushing effect[J]. Soil Dynamics and Earthquake Engineering，2019，120：258–269.
[7]	RAHMAN M S，ERLINGSSON S. Predicting permanent deformation behaviour of unbound granular materials[J]. International Journal of Pavement Engineering，2004，16(7)：587–601.
[14]	李頔. 级配碎石材料力学特性和设计方法研究[博士学位论文][D]. 西安：长安大学，2013.(LI Di. Research on mechanical characteristics and design method of graded crushed stone material[Ph. D. Thesis][D]. Xi?an：Chang?an University，2013.(in Chinese))
[17]	胡力群. 半刚性基层材料结构类型与组成设计研究[博士学位论文][D]. 西安：长安大学，2004.(HU Liqun. Research on the structure type and composition design of semi-rigid base materials[Ph. D. Thesis][D]. Xi?an：Chang?an University，2004.(in Chinese))
[24]	SANDSTR?M ?. Geodynamik report：Numerical simulation of a vibratory roller on cohesionless soil[R]. Sweden：Stockholm，1994.
[27]	周震，王萌，于群丁. 透水性级配碎石路基力学性能的直剪试验研究[J]. 铁道科学与工程学报，2019，16(9)：2 175–2 183.(ZHOU Zheng，WANG Meng，YU Qunding. Mechanical behavior of unbound permeable aggregate base materials studied from large-scale direct shear tests[J]. Journal of Railway Science and Engineering，2019，16(9)：2 175–2 183.(in Chinese))
[34]	陈坚，罗强，张良，等. 高速铁路基床表层级配碎石填料土体结构类型试验分析[J]. 铁道学报，2015，37(11)：82–88.(CHEN Jian，LUO Qiang，ZHAO Zhiming. Experimental analysis on soil structure type of graded gravelly soil filling surface layer of subgrade of high-speed railway[J]. Journal of the China Railway Society，2015，37(11)：82–88.(in Chinese))
[44]	黄强. 粗粒土室内表面振动压实参数及土体结构分析试验研究[硕士学位论文][D]. 成都：西南交通大学，2016.(HUANG Qiang. Experimental study on laboratory surface vibrating compaction parameters and soil structure type analysis of coarse-grained soils[M. S. Thesis][D]. Chengdu：Southwest Jiaotong University，2016.(in Chinese))
[2]	KOOHMISHI M. Hydraulic conductivity and water level in the reservoir layer of porous pavement considering gradation of aggregate and compaction level[J]. Construction and Building Materials，2019，203：27–44.
[3]	LU G Y，RENKEN L，LI T S，et al. Experimental study on the polyurethane-bound pervious mixtures in the application of permeable pavements[J]. Construction and Building Materials，2019，202：838–850.
[5]	方圆. 基于振动成型的水泥稳定碎石混合料力学特性及细观结构分析[硕士学位论文][D]. 长春：吉林大学，2020.(FANG Yuan. Research on mechanical properties and mesoscopic structure of cement stabilized macadam material based on vibrating compaction[M. S. Thesis][D]. Changchun：Jilin University，2020.(in Chinese))
[8]	DU J F，WU S F，HOU S，et al. Deformation analysis of granular soils under dynamic compaction based on Stochastic medium theory[J]. Mathematical Problems in Engineering，2019，18：511–531.
[10]	WERS?LL C，NORDFELT I，LARSSON S. Soil compaction by vibratory roller with variable frequency[J]. Geotechnique，2017，67(3)：272–278.
[12]	冯瑞玲，王园，谢永利. 粗粒土振动压实特性试验[J]. 中国公路学报，2007，(5)：19–23.(FENG Ruiling，WANG Yuan，XIE Yongli. Test on vibrated compaction properties of coarse grained soil[J]. China Journal of Highway and Transport，2007，(5)：19–23.(in Chinese))
[13]	梁向前，王园，孙进忠，等. 碎石土振动压实特性试验研究[J].岩石力学与工程学报，2005，24(1)：4 955–4 969.(LIANG Xiangqian，WANG Yuan，SUN Jinzhong，et al. Experimental study on vibration compaction performance of gravel soils[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(1)：4 955–4 969.(in Chinese))
[15]	蒋应军，杨秀荣，李宁方，等. 二灰碎石垂直振动试验方法及评价[J]. 建筑材料学报，2015，18(2)：351–356.(JIANG Yingjun，YANG Xiurong，LI Ningfang，et al. Evaluation of vertical vibration test method of lime-flu ash-stabilized aggregate[J]. Journal of Building Materials，2015，18(2)：351–356.(in Chinese))
[18]	徐光辉，高辉，王哲人. 级配碎石振动压实过程的连续动态监控分析[J]. 岩土工程学报，2005，27(11)：1 270–1 272.(XU Guanghui，GAO Hui，WANG Zheren. Analysis of continuous dynamic monitoring on vibrating compaction process of graded broken stone[J]. Chinese Journal of Geotechnical Engineering，2005，27(11)：1 270–1 272.(in Chinese))
[20]	吴龙梁. 基于能量耗散的路基连续压实控制技术研究[博士学位论文][D]. 北京：中国铁道科学研究院，2020.(WU Longliang. Research on continuous compaction control technology of roadbed based on energy dissipation[Ph. D. Thesis][D]. Beijing：China Academy of Railway Sciences，2020.(in Chinese))
[22]	VENNAPUSA P K R，WHITE D J，GIESELMAN H. Influence of support conditions on roller-integrated machine drive power measurements for granular base[C]// Contemporary Topics in Ground Modification，Problem Soils，and Geo-Support. Orlando，Florida，United States：American Society of Civil Engineers，2009：425–432.
[23]	CARL P. Geodynamic standards and specifications：Germany，Finland，Austria[S]. Sweden：Stockholm，2015.
[25]	叶阳升，蔡德钩，朱宏伟，等. 基于振动能量的新型高速铁路路基压实连续检测控制指标研究[J]. 铁道学报，2020，42(7)：127–132.(YE Yangsheng，CAI Degou，ZHU Hongwei，et al. Research on new continuous compaction control index of high-speed railway subgrade based on vibration energy[J]. Journal of the China Railway Society，2020，42(7)：127–132.(in Chinese))