Volume 23 Issue 1
Feb.  2015
Turn off MathJax
Article Contents
DING Qingfeng, YUE Yanyan, LI Wenping, BAI Hanying. 2015: LABORATORY STUDY ON PROPORTION OF SIMILAR MATERIAL FOR SIMULATING ANCIENT WEATHERED ROCK IN COAL STRATA. JOURNAL OF ENGINEERING GEOLOGY, 23(1): 13-20. doi: 10.13544/j.cnki.jeg.2015.01.003
Citation: DING Qingfeng, YUE Yanyan, LI Wenping, BAI Hanying. 2015: LABORATORY STUDY ON PROPORTION OF SIMILAR MATERIAL FOR SIMULATING ANCIENT WEATHERED ROCK IN COAL STRATA. JOURNAL OF ENGINEERING GEOLOGY, 23(1): 13-20. doi: 10.13544/j.cnki.jeg.2015.01.003

LABORATORY STUDY ON PROPORTION OF SIMILAR MATERIAL FOR SIMULATING ANCIENT WEATHERED ROCK IN COAL STRATA

doi: 10.13544/j.cnki.jeg.2015.01.003
Funds:

  • Received Date: 2014-01-09
  • Rev Recd Date: 2014-09-11
  • Publish Date: 2015-02-25
  • This paper is to prepare the similar material specimens with gradual variation of mechanical properties. The proportion tests is used to achieve the relationship between mechanical properties and proportion of cement-gypsum similar materials with different aggregates. A defined formula of proportion based on compressive strength and elastic modulus is determined via fitting the laboratory mechanical testing data of river-sand material. The test result shows that: water dosage, forming pressure and average particle diameter have effect of different levels and should be controlled in specimen preparation process. The tensile strength of low-intensity similar material is uncontrollable while the compressive strength and the elastic modulus show an obvious response to the change of proportion. For river sand similar material, the mechanical properties and the proportion present a linear relationship. While the standard sand similar material presents a nonlinear relationship between the mechanical properties and the proportion due to the critical content of cement and aggregate. The variable ranges of compressive strength and elastic modulus are 0~17.5MPa and 0.3~2.02GPa, respectively. The weathered rock can be simulated well using similar material in this range.
  • loading
  • Chen L W, Bai S W. 2006. Experimental study on similar material proportion of rock bust tendency of brittle rockmass[J]. Rock and Soil Mechanics, 27 (S2): 1050~1054.

    China Coalfield Geology Bureau. 2001. China coalfield hydrogeology[M]. Beijing: Coal Industry Press, 267~278.

    Dong J Y, Yang J H, Yang G X, et al. 2012. Research on similar material proportioning test of model test based on orthogonal designing[J]. Journal of China Coal Society, 37 (1): 44~49.

    Gao F Q, Wang X K. 2008. Orthogonal numerical simulation on sensitivity of rock mechanical parameters[J]. Journal of Mining & Safety Engineering, 25 (1): 95~98.

    Gu D Z. 1988. A study of analogous materials for simulating mechanical rock breaking and the proportion of their components[J]. Journal of China University of Mining & Technology, 18 (3): 33~37.

    Gu D Z. 1995. The similar materials and the similar model[M]. Xuzhou: China University of Mining and Technology Press.

    Han B L, Chen X L, Song Y L, et al. 1997. Research on similar material of rockmass[J]. Journal of Wuhan University of Hydraulic and Electric Engineering, 30 (2): 6~9.

    He P, Liu C W, Wang C, et al. 2011. Correlation analysis of uniaxial compressive strength and elastic modulus of sedimentary rocks[J]. Journal of Sichuan University(Engineering Science Edition), 43 (4): 7~12.

    Johnston I W, Choi S K. 1986. A synthetic soft rock for laboratory model studies[J]. Geotechnique, 36 (2): 251~263.

    Kang J F, Zhang J J, Feng N Q. 1998. Study on mixture ratio of model concrete used in structural model experiment [J]. China Civil Engineering Journal, 31 (4): 53~58.

    Li B F, Ren Y K, Qi L W, et al. 2011. Study on orthogonal mixing rate experiment with low strength similar material of coal and rock mass[J]. Coal Engineering, 58 (4): 93~95.

    Liu D J, Lü J, Zhang Q Y, et al. 2011. Development and application of salt rock-similar materials with rheological property[J]. Chinese Journal of Geotechnical Engineering, 33 (10): 1590~1595.

    Liu T Q. 1986. Safe extraction of near soft layer underlying a thick loose aquifer[J]. Coal Science and Technology, 13 (2): 14~18.

    Liu X Z. 2002. Mining practice of shrinking water-prevention rock pillar and leaving sand prevention pillar under the loose layer of Cenozoic era(Kz)[J]. Coal Technology, 21 (9): 27~28.

    Ma F P, Li Z K, Luo G F. 2004. NIOS model material and its used in geo-mechanical similarity model test[J]. Journal of Hydroelectric Engineering, 23 (1): 48~51.

    Parry R H G. 1970. Triaxial tests on Melbourne mudstone[J]. J. Instn. Engrs. Aust., 42 : 5~8.

    Sabnis G M, White R N. 1967. A Gypsum Mortar for small sacle models[J]. ACI Journal Proceedings, 64 (11): 767~774.

    Zhang X T, Zhang Q Y, Cao G H, et al. 2013. Effects on iron-barite-sand mixed similar material properties induced y molding pressure[J]. Journal of Shandong University(Engineering and Technology Edition), 43 (2): 89~95.

    Zuo B C, Chen C X, Liu C H, et al. 2004. Research on similar material of slope simulation experiment[J]. Rock and Soil Mechanics, 25 (11): 1805~1808.

    陈陆望, 白世伟. 2006. 脆性岩体岩爆倾向性的相似材料配比试验研究[J]. 岩土力学, 27 (增2): 1050~1054.

    董金玉, 杨继红, 杨国香,等. 2012. 基于正交设计的模型试验相似材料的配比试验研究[J]. 煤炭学报, 37 (1): 44~49.

    高富强, 王兴库. 2008. 岩体力学参数敏感性正交数值模拟试验[J]. 采矿与安全工程学报, 25 (1): 95~98.

    顾大钊. 1988. 模拟岩石机械破碎的相似材料的选择及其配比[J]. 中国矿业学院学报, 18 (3): 33~37.

    顾大钊. 1995. 相似材料与相似模型[M]. 徐州: 中国矿业大学出版社.

    韩伯鲤, 陈霞龄, 宋一乐,等. 1997. 岩体相似材料的研究[J]. 武汉水利电力大学学报, 30 (2): 6~9.

    何鹏, 刘长武, 王琛,等. 2011. 沉积岩单轴抗压强度与弹性模量关系研究[J]. 四川大学学报(工程科学版), 43 (4): 7~12.

    亢景富, 张镜剑, 冯乃谦. 1998. 结构模型试验中模型混凝土配合比研究[J]. 土木工程学报, 31 (4): 53~58.

    李宝富, 任永康, 齐利伟,等. 2011. 煤岩体的低强度相似材料正交配比试验研究[J]. 煤炭工程, 58 (4): 93~95.

    刘德军, 吕晶, 张强勇,等. 2011. 具有流变特性的盐岩相似材料的研制及应用[J]. 岩土工程学报, 33 (10): 1590~1595.

    刘天泉. 1986. 厚松散含水层下近松散层的安全开采[J]. 煤炭科学技术, 13 (2): 14~18.

    刘学增. 2002. 新生代松散层下缩小防水岩柱留设防砂煤柱开采实践[J]. 煤炭技术, 21 (9): 27~28.

    马芳平, 李仲奎, 罗光福. 2004. NIOS模型材料及其在地质力学相似模型试验中的应用[J]. 水力发电学报, 23 (1): 48~51.

    张绪涛, 张强勇, 曹冠华,等. 2013. 成型压力对铁-晶-砂混合相似材料性质的影响[J]. 山东大学学报(工学版), 43 (2): 89~95.

    中国煤田地质总局. 2001. 中国煤田水文地质学[M]. 北京: 煤炭工业出版社,267~278.

    左保成, 陈从新, 刘才华,等. 2004. 相似材料试验研究[J]. 岩土力学, 25 (11): 1805~1808.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Article views (2402) PDF downloads(668) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint