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[1]陶波,王治清,高建玲.纤维改性高水充填材料力学性能优化与巷旁充填应用研究*[J].中国安全生产科学技术,2026,22(4):64-72.[doi:10.11731/j.issn.1673-193x.2026.04.008]
　TAO Bo,WANG Zhiqing,GAO Jianling.Study on mechanical property optimization of fiber-modified high-water content backfill material and its application in roadside packing[J].Journal of Safety Science and Technology,2026,22(4):64-72.[doi:10.11731/j.issn.1673-193x.2026.04.008]
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纤维改性高水充填材料力学性能优化与巷旁充填应用研究*

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
22
期数:
2026年4期
页码:
64-72
栏目:
安全工程技术
出版日期:
2026-04-30

文章信息/Info

Title:
Study on mechanical property optimization of fiber-modified high-water content backfill material and its application in roadside packing
文章编号:
1673-193X(2026)-04-0064-09
作者:
陶波; 王治清; 高建玲
（1.山西省煤炭地质勘查研究院有限公司，山西 太原 030006；
2.山西省自然资源确权登记中心，山西 太原 030024）
Author(s):
TAO Bo;  WANG Zhiqing;  GAO Jianling
(1.Shanxi Provincial Coal Geological Exploration and Research Institute Co.,Ltd.,Taiyuan Shanxi 030006,China;
2.Shanxi Provincial Natural Resources Confirmation and Registration Center,Taiyuan Shanxi 030024,China)
关键词:
纤维改性; 高水充填材料; 力学特性; 配比优化; 巷旁充填
Keywords:
fiber modification;  high water filling material;  mechanical properties;  proportion optimization;  gob-side filling
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2026.04.008
文献标志码:
A
摘要:
为解决传统高水充填材料脆性大、抗裂性差、力学性能不足等问题，构建“室内多指标试验+微观机理分析+现场工程验证”的研究方法体系。通过室内单轴压缩试验系统探究0%~2.1%梯度聚丙烯纤维掺量对高水充填材料3 d，7 d，28 d龄期抗压强度、抗折强度、应力-应变特征等力学指标的影响规律，结合扫描电子显微镜（scanning electron microscope，SEM）分析纤维与基体的界面结合状态及改性微观机理，以深部矿山沿空留巷巷旁充填工程为应用场景，通过矿压多指标监测验证最优配比材料的现场支护效果与工程适配性。研究结果表明：聚丙烯纤维掺量对高水充填材料力学性能呈显著“阈值效应”，随掺量增加，各项力学性能先增后减。当掺量为0.6%时最优，28 d抗压强度达14.23 MPa（较空白组提升42.3%），抗折强度达2.63 MPa（较空白组提升42.2%），峰值应变和弹性模量分别提升35.1%和39.3%，材料破坏形态由脆性断裂转为延性破坏。适量纤维可均匀分散形成三维网络结构，通过桥接阻裂、应力传递及细化孔隙提升材料整体性；过量纤维则易团聚形成应力集中区，劣化力学性能。0.6%掺量改性材料使沿空留巷顶板移近量降低77.6%，锚杆载荷充填体侧降低7.7%，实体煤帮降低10.1%，深部顶板离层量深基点降低77.6%，浅基点降低70%，有效控制围岩变形。研究结果可为纤维改性高水材料性能提升提供参考。
Abstract:
In order to address the issues of high brittleness,poor crack resistance,and insufficient mechanical properties of traditional high-water filling materials,a research method system consisting of “indoor multi-index tests + microscopic mechanism analysis + on-site engineering verification” was constructed.Through the indoor uniaxial compression test system,the influence laws of 0% to 2.1% gradient polypropylene fiber content on the 3-day,7-day,and 28-day compressive strength,flexural strength,stress-strain characteristics,etc.of high-water filling materials were explored.Combined with scanning electron microscope (SEM) analysis of the interface bonding state between fibers and the matrix and the modification microscopic mechanism,the application scenario was the deep mine along-stripping roadway side filling project.Through multi-index monitoring of mine pressure,the on-site supporting effect and engineering adaptability of the optimal ratio materials were verified.The research results show that the fiber content has a significant “threshold effect” on the mechanical properties of high-water filling materials.As the content increases,the various mechanical properties first increase and then decrease.When the content is 0.6%,it is the optimal,with a 28-day compressive strength of 14.23 MPa (an increase of 42.3% compared to the blank group),a 2.63 MPa flexural strength (an increase of 42.2% compared to the blank group),a peak strain and elastic modulus increase by 35.1% and 39.3% respectively,and the material failure mode changes from brittle fracture to ductile failure.An appropriate amount of fibers can be uniformly dispersed to form a three-dimensional network structure,which enhances the overall integrity of the material by bridging,stress transfer,and pore refinement; excessive fibers are prone to agglomeration to form stress concentration areas,deteriorating the mechanical properties.The modified material with a 0.6% fiber content reduces the roof displacement of the along-stripping roadway by 77.6%,the side load of the anchor bolt filling body by 7.7%,the solid coal roof by 10.1%,the deep base point of the deep roof displacement by 77.6%,the shallow base point by 70%,effectively controlling the deformation of the surrounding rock.The research results can provide a reference for the performance of fiber-modified high-water materials.

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备注/Memo

备注/Memo:
收稿日期： 2026-01-28
* 基金项目： 山西省基础研究计划项目（202403021211026）
作者简介： 陶波，本科，高级工程师，主要研究方向为煤炭地质、煤矿安全、地质灾害等。
通信作者： 高建玲，本科，高级工程师，主要研究方向为煤田地质、水文地质、地质灾害、煤炭行业监理等。
更新日期/Last Update: 2026-04-29