›› 2016, Vol. 37 ›› Issue (12): 3642-3650.doi: 10.16285/j.rsm.2016.12.037

• 测试技术 • 上一篇    

气泡混合轻质土路堤最佳浇筑厚度的确定方法

朱俊杰1, 2,刘 鑫1, 3,洪宝宁1, 2,刘顺青4,徐奋强1, 5,化君晖1, 2   

  1. 1. 河海大学 岩土力学与堤坝工程教育部重点实验室,江苏 南京 210098;2. 河海大学 江苏省岩土工程技术工程研究中心,江苏 南京 210098; 3. 河海大学 隧道与城市轨道工程研究所,江苏 南京 210098;4. 江苏科技大学 土木工程与建筑学院,江苏 镇江 212003; 5. 南京工程学院 建筑工程学院,江苏 南京 211167
  • 收稿日期:2014-11-27 出版日期:2016-12-10 发布日期:2018-06-09
  • 通讯作者: 刘鑫,男,1984年生,博士,副教授,硕士生导师,主要从事岩土材料微细结构与损伤研究。E-mail: geohohai@139.com E-mail:junjie_zhu@aliyun.com
  • 作者简介:朱俊杰,男,1986年生,博士研究生,主要从事软弱地基处理及环境岩土研究工作。
  • 基金资助:

    江苏省自然科学基金青年基金(No.BK20140848);中央高校基本科研业务费专项资金资助(No.2014B04914);中国博士后科学基金面上资助(No.2014M550882);广东省交通运输厅科技项目(No.科技2012-02-013)

A method for determining optimum casting thickness of foamed mixture lightweight soil embankment

ZHU Jun-jie1, 2, LIU Xin1, 3, HONG Bao-ning1, 2, LIU Shun-qing4, XU Fen-qiang1, 5, HUA Jun-hui1, 2   

  1. 1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, Jiangsu 210098, China; 2. Jiangsu Research Center for Geotechnical Engineering Technology, Hohai University, Nanjing, Jiangsu 210098, China; 3. Institute of Tunnel, Underground and Metro Engineering, Hohai University, Nanjing, Jiangsu 210098, China; 4. School of Architecture and Civil Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China; 5. School of Architecture Engineering, Nanjing Institute of Technology, Nanjing, Jiangsu 211167, China
  • Received:2014-11-27 Online:2016-12-10 Published:2018-06-09
  • Supported by:

    This work was supported by the Young Scholars of National Natural Science Foundation of Jiangsu Province (BK20140848), the Fundamental Research Funds for the Central Universities (2014B04914), the General Program of China Postdoctoral Science Foundation (2014M550882) and the Science and Technology Foundation for Department of Guangdong Provincial Transportation and Communication (2012-02-013).

摘要: 气泡混合轻质土是一种新型的环保岩土材料,已开始作为路堤填料应用。然而至今每层的最佳填筑厚度问题仍未解决。基于研制的一种可用于测量施工期气泡混合轻质土强度沿路堤深度变化的仪器,在给出相应的测试原理和测试步骤,以及确定最佳浇筑厚度判定依据的基础上,通过工程实例的论证,提出了气泡混合轻质土作为路堤填料时最佳浇筑厚度的确定方法。针对现场试验段的工程情况,建议浇筑厚度控制在500 mm以内。该项研究不仅有利于气泡混合轻质土作为路堤填料的施工质量控制,而且为其更广泛地应用提供技术支撑。

关键词: 气泡混合轻质土, 强度测试仪, 浇筑厚度, 判定依据

Abstract: Foamed mixture lightweight soil (FMLS) is a new environmental protection geotechnical material. It has been applied to embankment filling. However, the issue of optimum casting thickness of each layer FMLS has not been solved yet until now. In this study, a self-developed instrument is used to measure the strength of the FMLS at different depths during construction. The testing principles and steps are given; and the judgment criterion of the optimum casting thickness is determined. Through an engineering case, a method is proposed for determining the optimum casting thickness for FMLS as embankment filling material. It is suggested that the optimum casting thickness should be controlled within 500 mm for test section. This procedure is beneficial to control construction quality of FMLS as embankment filling material.

Key words: foamed mixture lightweight soil, strength tester, casting thickness, judgment criterion

中图分类号: 

  • TU 449

[1] 周云东, 王 勇, 黎 冰, 徐佳辉, 刘萌成, Ali H Mahfouz, . 气泡混合轻质土试样制备研究[J]. 岩土力学, 2018, 39(12): 4413-4420.
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