基于3D打印技术的柱状节理岩体试样
力学特性试验研究

doi:10.16285/j.rsm.2021.0736

岩土力学 ›› 2022, Vol. 43 ›› Issue (S2): 245-254.doi: 10.16285/j.rsm.2021.0736

基于3D打印技术的柱状节理岩体试样力学特性试验研究

张涛^{1, 2}，徐卫亚^{1, 2}，孟庆祥^{1, 2}，王环玲^{1, 2}，闫龙^{1, 2}，钱坤^{1, 2}

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. 河海大学岩土工程科学研究所，江苏南京 210098

收稿日期:2021-05-15 修回日期:2022-06-13 出版日期:2022-10-10 发布日期:2022-10-03
通讯作者: 王环玲，女，1976年生，博士，博士生导师，主要从事岩石力学与工程方面的研究。E-mail: wanghuanling@hhu.edu.cn E-mail:tzhang@hhu.edu.cn
作者简介:张涛，男，1990年生，博士研究生，主要从事岩石力学与工程方面的研究。
基金资助:
国家重点研发计划（No.2018YFC0407004）；国家自然科学基金（No.51939004，No.11772118，No.11772116）；中国博士后科学基金面上资助向目（No.2019M661711）；中央高校基本科研业务费专向资金资助（B200202083）

Experimental investigation on the mechanical characteristics of columnar jointed rock mass samples based on 3D printing technology

ZHANG Tao^{1, 2}, XU Wei-ya^{1, 2}, MENG Qing-xiang^{1, 2}, WANG Huan-ling^{1, 2}, YAN Long^{1, 2}, QIAN Kun^{1, 2}

1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, Jiangsu 210098, China; 2. Institute of Geotechnical Engineering, Hohai University, Nanjing, Jiangsu 210098, China

Received:2021-05-15 Revised:2022-06-13 Online:2022-10-10 Published:2022-10-03
Supported by:
This research is supported by the National Key R&D Program of China (2018YFC0407004), the National Natural Science Foundation of China (51939004, 11772118, 11772116), China Postdoctoral Science Foundation (2019M661711) and the Fundamental Research Funds for the Central Universities (B200202083).

摘要/Abstract

摘要： 为了研究柱状节理岩体各向异性力学特征，基于白鹤滩水电站坝基柱状节理岩体的几何形态，引入一种可溶于水的聚乙烯醇（polyvinyl alcohol，简称PVA）材料，通过3D打印技术建立具有不同倾角的柱状节理网络结构，采用水泥砂浆作为类岩石材料制备柱状节理岩体试样。通过开展室内单轴压缩试验，分析了柱状节理岩体试样在单轴压缩应力下的各向异性力学特征。结果表明：柱状节理岩体的各向异性特征依赖于节理的倾角。柱状节理岩体的峰值强度和模量随着节理倾角的增加均呈现出近似U型曲线；试样主要产生垂直于柱体轴向的张拉裂隙、沿节理面的剪切裂隙和平行于柱体轴向的拉伸裂隙。通过力学各向异性评估发现峰值强度和残余强度各向异性程度为0.68和0.52，弹性模量和变形模量的各向异性程度为0.61和0.63。研究成果为柱状节理岩体的各向异性力学特性研究提供参考。

关键词: 岩石力学, 柱状节理岩体, 各向异性, 3D打印, 室内试验

Abstract: Based on the geometrical morphology of the columnar jointed rock mass at the dam foundation of Baihetan Hydropower Station, a water-soluble polyvinyl alcohol (PVA) material was introduced, and the columnar jointed rock mass network structure with different inclination angles was established. The columnar jointed rock mass samples were prepared by cement mortar as rock-like materials using 3D printing technology to study the anisotropic mechanical characteristics of the columnar jointed rock mass. The anisotropic mechanical characteristics of columnar jointed rock mass were analyzed by uniaxial compression test in a laboratory. The results show that the anisotropy of columnar jointed rock mass depends on the dip angle of the joint. Peak strength and modulus of columnar jointed rock mass show an approximate “U” shaped curve with the increase of joint dip angle. In the uniaxial compression test, the cleavage cracks perpendicular to the axial direction of the cylinder, the shear cracks along the longitudinal joint plane, and the tensile cracks parallel to the axial direction of the cylinder are mainly produced. According to the evaluation of mechanical anisotropy, it is found that the anisotropy degree of peak strength and residual strength are 0.68 and 0.52, and the anisotropy degree of elastic modulus and deformation modulus are 0.61 and 0.63. The research results provide a reference for the study of the anisotropic mechanical properties of columnar jointed rock mass.

Key words: rock mechanics, columnar jointed rock mass, anisotropy, 3D printing, laboratory test

中图分类号: TU452

张涛, 徐卫亚, 孟庆祥, 王环玲, 闫龙, 钱坤, . 基于3D打印技术的柱状节理岩体试样力学特性试验研究[J]. 岩土力学, 2022, 43(S2): 245-254.

ZHANG Tao, XU Wei-ya, MENG Qing-xiang, WANG Huan-ling, YAN Long, QIAN Kun, . Experimental investigation on the mechanical characteristics of columnar jointed rock mass samples based on 3D printing technology[J]. Rock and Soil Mechanics, 2022, 43(S2): 245-254.

参考文献

相关文章 15

[1]	刘一鸣, 李振, 冯国瑞, 杨鹏, 白锦文, 黄炳雄, 李东, . 循环加卸载下裂隙砂岩声−热响应特征及前兆规律[J]. 岩土力学, 2025, 46(9): 2773-2791.
[2]	李晓锋, 李海波, 刘黎旺, 傅帅旸, . 冲击荷载作用下岩石动态拉伸破坏特征及细观机制[J]. 岩土力学, 2025, 46(8): 2387-2398.
[3]	沈扬, 沈嘉毅, 梁晖, 樊科伟. 基于3D打印技术的仿真钙质砂三轴试验研究[J]. 岩土力学, 2025, 46(8): 2353-2362.
[4]	吕萌, 王亮清, 谢妮, 朱林锋, 安彩龙, 柯睿, 王旭晨, . 加锚异性结构面剪切特性及声发射响应特征研究[J]. 岩土力学, 2025, 46(7): 2106-2120.
[5]	倪祖甲, 乔江美, 张俊楷, 唐旭海, . 基于微观岩石力学试验及精确矿物晶体建模的砂岩力学性质及波速分析[J]. 岩土力学, 2025, 46(6): 1865-1880.
[6]	张艳博, 周浩, 梁鹏, 姚旭龙, 陶志刚, 来有邦, . 基于到时精确拾取与智能优化算法结合的岩石声发射定位方法研究[J]. 岩土力学, 2025, 46(5): 1643-1656.
[7]	马语航, 何明明, 李宁, . XCY-2旋切触探系统研发及应用[J]. 岩土力学, 2025, 46(3): 1025-1038.
[8]	曹苏南, 李春红, 陈远兵, 费康, . 循环荷载作用下砂土−结构物仿生界面剪切特性研究[J]. 岩土力学, 2025, 46(3): 821-832.
[9]	吕志涛, 赵志远, 蔡毅, 夏才初, 段君义. 单向冻融作用下砂岩力学各向异性演化与损伤模型[J]. 岩土力学, 2025, 46(11): 3421-3430.
[10]	董佳斌, 鲁一帆, 金毅, 董文浩, 侯鹏, 刘顺喜, 牛然. 彭水页岩节理面形貌的分形特征及基于节理粗糙度系数的各向异性表征[J]. 岩土力学, 2025, 46(11): 3549-3561.
[11]	李利萍, 余泓浩, 李秋雨, 潘一山, . 含水煤块超低摩擦效应试验研究[J]. 岩土力学, 2025, 46(10): 3093-3103.
[12]	耿潇威, 陈成, 孙中华, 黎伟, 王勇, 徐梦冰, 余颂, . 基于广义位势理论的考虑组构各向异性的砂土本构模型[J]. 岩土力学, 2025, 46(10): 3175-3186.
[13]	邓东平, 徐润冬, 彭一航, 文莎莎. 强度空间非均质性与各向异性特征下边坡稳定性极限平衡滑面应力法[J]. 岩土力学, 2025, 46(1): 55-72.
[14]	肖劲卿, 温松诚, 郭源, . 基于单孔冲刷测试的黏性土抗侵蚀性及各向异性试验研究[J]. 岩土力学, 2025, 46(1): 187-198.
[15]	孙杰豪, 郭保华, 田世轩, 程坦, . 基于声发射特征参数的砂岩节理直剪破坏特征试验研究[J]. 岩土力学, 2024, 45(S1): 167-177.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

基于3D打印技术的柱状节理岩体试样力学特性试验研究

Experimental investigation on the mechanical characteristics of columnar jointed rock mass samples based on 3D printing technology

PDF (Chinese)

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

本文评价

推荐阅读 0

基于3D打印技术的柱状节理岩体试样 力学特性试验研究

Experimental investigation on the mechanical characteristics of columnar jointed rock mass samples based on 3D printing technology

PDF (Chinese)

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

本文评价

推荐阅读 0

基于3D打印技术的柱状节理岩体试样力学特性试验研究