基于3D打印的粗糙结构面模型表征及渗流特性试验研究

doi:10.16285/j.rsm.2023.0875

岩土力学 ›› 2024, Vol. 45 ›› Issue (3): 725-736.doi: 10.16285/j.rsm.2023.0875

基于3D打印的粗糙结构面模型表征及渗流特性试验研究

王培涛^{1, 2, 3}，黄浩¹，张博^{1, 4}，王路军^{2, 3}，杨毅^{2, 3}

1. 北京科技大学土木与资源工程学院，北京 100083；2. 国能神东煤炭集团有限责任公司煤炭开采水资源保护与利用国家重点实验室，北京 102201；3. 北京低碳清洁能源研究院，北京 100011；4. 核工业北京地质研究院，北京 100029

收稿日期:2023-06-20 接受日期:2023-07-26 出版日期:2024-03-11 发布日期:2024-03-20
作者简介:王培涛，男，1987年生，博士，副教授，硕士生导师，主要从事裂隙岩体3D打印、多尺度及各向异性力学分析方面研究。E-mail: wangpeitao@ustb.edu.cn
基金资助:
国家重点研发计划项目（No.2021YFC2900500，No.2023YFC2907401）；国家自然科学基金项目（No.52074020）；煤炭开采水资源保护与利用国家重点实验室2019年开放基金课题（No.WPUKFJJ2019-06）；北京科技大学青年教师学科交叉研究项目（中央高校基本科研业务费专项资金）资助项目（No.FRF-IDRY-21-001）。

Characterization of rough fracture model and the seepage characteristics based on 3D printing technology

WANG Pei-tao^{1, 2, 3}, HUANG Hao¹, ZHANG Bo^{1, 4}, WANG Lu-jun^{2, 3}, YANG Yi^{2, 3}

1. School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China; 2. State Key Laboratory of Water Resource Protection and Utilization in Coal Mining, CHN Energy Shendong Coal Group Co., Ltd. Beijing 102201, China; 3. National Institute of Clean-and-Low-Carbon Energy, Beijing 100011, China; 4. Beijing Research Institute of Uranium Geology, Beijing 100029, China

Received:2023-06-20 Accepted:2023-07-26 Online:2024-03-11 Published:2024-03-20
Supported by:
This work was supported by the National Key R&D Program of China (2021YFC2900500, 2023YFC2907401), the National Natural Science Foundation of China (52074020), the Open Fund of State Key Laboratory of Water Resource Protection and Utilization in Coal Mining (WPUKFJJ2019-06) and the Interdisciplinary Research Project for Young Teachers of USTB (Fundamental Research Funds for the Central Universities) (FRF-IDRY-21-001).

摘要/Abstract

摘要：

基于Weierstrass-Mandelbrot（W-M）分形函数开展三维粗糙结构面表征，讨论了W-M典型几何参数对三维曲面形态影响，分析确定对应于典型Barton节理JRC轮廓线的二维与三维W-M几何参数。基于自主设计结构面渗流测试系统，结合3D打印开展不同分形参数和开度的裂隙渗流试验，试验结果表明：随着水力梯度和粗糙度的增加，流体的流动表现出明显的非线性，Forchheimer方程的系数A与B都随着裂隙粗糙度的增加而增大，随着裂隙开度的增加而减小；随着裂隙粗糙度的增加，临界雷诺系数Re_c趋于减小，说明流体流动趋于非达西流动。光滑表面流体的流场流速比较均匀；粗糙裂隙表面流场更加复杂，整个粗糙面上存在多个高流速区域和低流速区域。研究成果可为裂隙渗流特性研究提供了可靠的分析方法和模型。

关键词: 岩石裂隙, 渗流试验, 分形维数, 粗糙度, 3D打印

Abstract:

A three-dimensional rough structural surface characterization was carried out based on the Weierstrass-Mandelbrot (W-M) fractal function. The effects of typical W-M geometric parameters on the three-dimensional surface morphology were discussed. The two-dimensional and three-dimensional W-M geometric parameters corresponding to typical Barton JRC curves were analyzed and provided. Experimental fracture seepage tests on specimens with different fractal parameters and fracture aperture were conducted using a self-designed fracture seepage system based on 3D printing technology. The test results showed that the fluid flow exhibited obvious nonlinearity with increasing hydraulic gradient and roughness. The coefficients of A and B in the Forchheimer equation increased with increasing fracture roughness and decreased with increasing fracture aperture. Meanwhile, the critical Reynolds coefficient tended to decrease as the roughness increased, indicating a tendency towards non-Darcy flow. The analysis of fluid flow patterns revealed that the flow velocity of the smooth structure surface of the model was relatively uniform. The flow field of the rough surface was complex showing several high and low flow velocity regions along the rough surfaces. The research results provide reliable analytical methods and models for the study of fracture seepage characteristics.

Key words: rock fracture, seepage test, fractal dimension, roughness, 3D printing

中图分类号:

TU451

王培涛, 黄浩, 张博, 王路军, 杨毅, . 基于3D打印的粗糙结构面模型表征及渗流特性试验研究[J]. 岩土力学, 2024, 45(3): 725-736.

WANG Pei-tao, HUANG Hao, ZHANG Bo, WANG Lu-jun, YANG Yi, . Characterization of rough fracture model and the seepage characteristics based on 3D printing technology[J]. Rock and Soil Mechanics, 2024, 45(3): 725-736.

参考文献

相关文章 15

[1]	朱寅斌, 李长冬, 周佳庆, 项林语, 姜茜慧, 朱文宇, . 考虑基质渗透性的粗糙单裂隙非达西流动特性研究[J]. 岩土力学, 2024, 45(2): 601-611.
[2]	罗国立, 张科, 齐飞飞, 朱辉, 张凯, 刘享华, . 基于3D打印的裂隙岩体力学特性尺寸效应及各向异性初探[J]. 岩土力学, 2023, 44(S1): 107-116.
[3]	王文东, 邓华锋, 李建林, 冯云杰, 李冠野, 齐豫, . 基于有效受剪面积的节理面吻合度量化方法研究[J]. 岩土力学, 2023, 44(S1): 249-258.
[4]	刘飞禹, 张诗珣, 熊勃, . 粗糙度对不同粒径砂-混凝土界面剪切特性影响[J]. 岩土力学, 2023, 44(S1): 419-426.
[5]	王洪建, 崔炎宗, 袁广祥, 赵菲, 张翼宇, 黄志全. 基于单轴压缩试验的不同风化程度花岗岩分形特征分析[J]. 岩土力学, 2023, 44(8): 2249-2265.
[6]	刘铁新, 李嘉琪, 邓建辉, 张正虎, 郑俊. 节理粗糙度对岩块体积的影响规律研究[J]. 岩土力学, 2023, 44(8): 2266-2275.
[7]	辛子朋, 柴肇云, 孙浩程, 李天宇, 刘新雨, 段碧英. 砂质泥岩峰后破裂承载特征与块体分布规律研究[J]. 岩土力学, 2023, 44(8): 2369-2380.
[8]	王雪松, 郭连军, 刘鑫, 邓丁, 张久洋, 徐振洋, . 冲击作用下花岗岩的I型裂纹形态及断面粗糙度研究[J]. 岩土力学, 2023, 44(7): 1925-1936.
[9]	于洋, 王泽华, 唐才萱. 单轴压缩下酸腐蚀花岗岩能量演化与分形特征[J]. 岩土力学, 2023, 44(7): 1971-1982.
[10]	甘磊, 刘玉, 张宗亮, 沈振中, 马洪影, . 岩体裂隙粗糙度表征及其对裂隙渗流特性的影响[J]. 岩土力学, 2023, 44(6): 1585-1592.
[11]	田威, 王肖辉, 云伟, 程续. 基于不同后处理方法的砂型3D打印类岩石试样力学性能研究[J]. 岩土力学, 2023, 44(5): 1330-1340.
[12]	陈曦. 基于方向性粗糙度参数的节理峰值抗剪强度理论模型[J]. 岩土力学, 2023, 44(4): 1075-1088.
[13]	闫长斌, 李高留, 陈健, 李严, 杨延栋, 杨风威, 杨继华, . 基于新表面理论的TBM破岩效率评价指标[J]. 岩土力学, 2023, 44(4): 1153-1164.
[14]	田霄, 叶祖洋, 罗旺, . 岩体裂隙几何结构对其渗流传热特性的影响[J]. 岩土力学, 2023, 44(12): 3512-3521.
[15]	冯晨, 李江山, 刘金都, 薛强, . 砷、镉复合污染土击实特性及微观结构试验研究[J]. 岩土力学, 2022, 43(S2): 171-182.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

基于3D打印的粗糙结构面模型表征及渗流特性试验研究

Characterization of rough fracture model and the seepage characteristics 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 10