钢塑复合土工格栅加筋带拉伸力学性能及配筋率试验研究

Experimental Study on Tensile Mechanical Properties and Reinforcement Ratio of Steel-Plastic Compound Geogrid-Reinforced Belt.

作者信息

Wang Qingbiao, Li Yue, Song Hongxu, Duan Jianing, Hu Zhongjing, Wang Fuqiang, Xu Haolin, Liu Zhengyin, Zhang Mingjing, Wang Liming, Wu Yeming, Shi Zhenyue

机构信息

State Key Laboratory of Mining Disaster Prevention and Control Co-Founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, China.

National Engineering Laboratory for Coalmine Backfilling Mining, Shandong University of Science and Technology, Tai'an 271019, China.

出版信息

Materials (Basel). 2021 Oct 11;14(20):5963. doi: 10.3390/ma14205963.

DOI:10.3390/ma14205963

PMID:34683552

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8541536/

Abstract

The steel-plastic compound geogrid has been widely used as a new reinforcement material in geotechnical engineering and other fields. Therefore, it is essential to fully understand the mechanical properties of steel-plastic compound geogrid-reinforced belts to utilize steel-plastic compound geogrids efficiently. In this study, tensile mechanical tests of steel wire, polyethylene geogrid belt, and steel-plastic compound geogrid-reinforced belt were conducted with respect to the tensile mechanical properties of steel-plastic compound geogrid-reinforced belts. In addition, the minimum reinforcement and optimal reinforcement ratios of steel-plastic compound geogrid-reinforced belts were summarized. The results showed that the steel-plastic compound geogrid-reinforced belts possessed an incongruent force of the internal steel wire during the tensile process. The tensile stress-strain curve of the steel-plastic compound geogrid-reinforced belt can be divided into the composite adjustment, steel wire breaking, and residual deformation stages. The tensile strength of the steel-plastic compound geogrid-reinforced belt is proportional to the diameter and number of steel wires in the reinforced belt. The minimum and optimum reinforcement ratios of steel wire in the steel-plastic compound geogrid-reinforced belt were 0.63% and 11.92%, respectively.

摘要

钢塑复合土工格栅作为一种新型加筋材料已在岩土工程等领域得到广泛应用。因此，充分了解钢塑复合土工格栅加筋带的力学性能对于高效利用钢塑复合土工格栅至关重要。本研究针对钢塑复合土工格栅加筋带的拉伸力学性能，对钢丝、聚乙烯土工格栅带和钢塑复合土工格栅加筋带进行了拉伸力学试验。此外，总结了钢塑复合土工格栅加筋带的最小加筋率和最优加筋率。结果表明，钢塑复合土工格栅加筋带在拉伸过程中内部钢丝受力不协调。钢塑复合土工格栅加筋带的拉伸应力 - 应变曲线可分为复合调整、钢丝断裂和残余变形阶段。钢塑复合土工格栅加筋带的拉伸强度与加筋带中钢丝的直径和数量成正比。钢塑复合土工格栅加筋带中钢丝的最小和最优加筋率分别为0.63%和11.92%。