当前位置: X-MOL 学术EURASIP J. Wirel. Commun. Netw. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
A cable supporting test under impact loading based on 5G-IoT
EURASIP Journal on Wireless Communications and Networking ( IF 2.3 ) Pub Date : 2021-05-26 , DOI: 10.1186/s13638-021-02003-4
Xiaokun Sun , Zhaohua Li , Tao Hong

Reliable supporting effect is of utmost important for the deep mining roadway to prevent the hazards during deep mining activities. Traditional supporting equipment are not satisfying in the absence of the energy-absorbing capacity, whereas the Constant-Resistance-Large-Deformation (CRLD) cable, which can endure a large deformation of 2 m and provide a constant resistance in the meantime, would be a reasonable choice. To verify the CRLD performance of the new cable and highlight its energy-absorbing capacity under impact loading, this paper designed an in situ blasting test in a discarded deep roadway, which is divided into four sections and reinforced by the traditional and CRLD cables, respectively. Firstly, a numerical study of the blasting testis is carried out, the CRLD cable element is proposed, based on the existing one of the FLAC3D software, and a static pullout test is simulated to verify the new element, the adapted impact loading is estimated and the dynamic calculation is performed. Furthermore, under the blasting, which releases the energy of the 1st seismic magnitude, the monitored axial forces of the cables are transmitted in real time using 5G-IoT, and the supporting effects of the two types of cables are compared. According to the numerical and experimental results, the CRLD cable is proven reliable to support the deep roadway, at least shocked by the released energy corresponding to the 1st seismic magnitude.



中文翻译:

基于5G-IoT的冲击负载下的电缆支持测试

可靠的支撑效果对于防止深部开采活动中的危险对于深部采矿巷道至关重要。传统的支撑设备在没有能量吸收能力的情况下不能令人满意,而恒定电阻大变形(CRLD)电缆可以承受2 m的大变形并同时提供恒定的电阻。合理的选择。为了验证新电缆的CRLD性能并突出其在冲击载荷下的能量吸收能力,本文在废弃的深巷道中设计了现场爆破试验,该试验分为四个部分,分别由传统电缆和CRLD电缆加固。首先,对爆破睾丸进行了数值研究,提出了CRLD电缆元件,基于现有的FLAC3D软件,并进行了静态拉拔测试以验证新的元素,估计了合适的冲击载荷并进行了动态计算。此外,在释放第一级地震能量的爆炸作用下,使用5G-IoT实时传输所监视电缆的轴向力,并比较了两种电缆的支撑效果。根据数值和实验结果,CRLD电缆被证明可可靠地支撑深层巷道,至少受到对应于第一地震震级的释放能量的冲击。释放第一级地震的能量,使用5G-IoT实时传输所监视电缆的轴向力,并比较两种类型电缆的支撑效果。根据数值和实验结果,CRLD电缆被证明可可靠地支撑深层巷道,至少受到对应于第一地震震级的释放能量的冲击。释放第一级地震的能量,使用5G-IoT实时传输所监视电缆的轴向力,并比较两种类型电缆的支撑效果。根据数值和实验结果,CRLD电缆被证明可可靠地支撑深层巷道,至少受到对应于第一地震震级的释放能量的冲击。

更新日期:2021-05-26
down
wechat
bug