Behaviour of lump-grout material filled PVC tubular column under uniaxial compression
Behaviour of lump-grout material filled PVC tubular column under uniaxial compression
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块状灌浆材料填充 PVC 管柱在单轴压缩下的行为
DOI：
10.1016/j.conbuildmat.2022.129271
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发表时间：
2022-11
影响因子：
7.4
通讯作者：
Alex Remennikov
中科院分区：
文献类型：
--
作者：
Hongchao Zhao;Ting Ren;Alex Remennikov
由聚氯乙烯 (PVC) 和块状灌浆 (LG) 材料制成的混合结构形式（称为 LGFPT 柱）被开发为深部地下矿井的替代站立支撑。为了探索这种结构形式在单轴压缩下的力学响应，研究了各种关键参数（即水泥浆材料的水粉比、PVC管的长径比、加载模式和加载速度）。测试结果表明，LGFPT 柱具有与应变硬化行为相关的优异延展性（> 柱长度的 30%）。与同类产品相比，在评估 LGFPT 的峰值荷载时，灌浆材料的水粉比的影响最为显着。同时，研究了水泥灌浆材料填充 PVC 管 (GFPT) 柱的压缩行为。当比较LGFPT和GFPT的极限轴压强度时，虽然LGFPT的胶凝材料用量减少了约50%，但其强度并未受到明显影响。作为站立式支撑系统家族的一员，LGFPT 因其成本效益高且环保，是地下矿井中使用的理想选择。
The hybrid structural form made of the polyvinyl chloride (PVC) and lump-grout (LG) material, termed LGFPT column, was developed as the alternative standing support for deep underground mines. To explore the mechanical response of this structural form under the uniaxial compression, various critical parameters (i.e., the water-to-powder ratio of the cementitious grout material, length-to-diameter ratio of the PVC tube, loading mode and loading speed) were investigated. Test results showed that the LGFPT column had an excellent ductility (>30% of the column length) associated with the strain hardening behaviour. Compared to its counterparts, the effect of the water-to-powder ratio of the grout material is most significant when the peak load of the LGFPT is evaluated. In parallel, the compressive behaviour of the cementitious grout material-filled PVC tubular (GFPT) column was investigated. When the ultimate axial compressive strength of the LGFPT and the GFPT are compared, the strength of the LGFPT was not significantly affected, although the cementitious grout material consumption of which has been reduced about 50% in volume. As a family member of the standing support systems, the LGFPT is an ideal candidate to be used in underground mines attributed to its cost-effective and environmentally-friendly.
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影响因子：
7.4
作者：
Jian, Si-Min;Wu, Bo
通讯作者：
Wu, Bo
利用混凝土柱作为地下矿山的环保采矿实践
影响因子：
11.1
作者：
Cao Shuai;Xue Gaili;Yilmaz Erol;Yin Zhenyu;Yang Fudou
通讯作者：
Yang Fudou
DOI：
--
发表时间：
1978
期刊：
Journal of the Structural Division
影响因子：
--
作者：
C. E. Kurt
通讯作者：
C. E. Kurt
DOI：
10.1016/j.ijmst.2016.10.003
发表时间：
2017-01
影响因子：
11.8
作者：
Timothy B
通讯作者：
Timothy B
影响因子：
6.3
作者：
Tao Yu;Hongchao Zhao;T. Ren;A. Remennikov
通讯作者：
Tao Yu;Hongchao Zhao;T. Ren;A. Remennikov