Application of Glass Fiber Concrete under Thin-Walled Middle Partition Wall Construction in Tunnel

作     者：Yuanyuan Tian Yigong Wang Haixiang Nie Hongyue You Junjie Zhang Tangsha Shao Chuming Pang Xu Zhang Dong Wang Peng Huang Qingbiao Wang 

作者机构：College of Civil Engineering and Architecture Shandong University of Science and Technology Qingdao 266590 China College of Resources Shandong University of Science and Technology Tai'an 271019 China College of Civil Engineering and Architecture 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 Shandong University Geotechnical and Structural Engineering Research Center Jinan250013 China School of Mechanics and Architecture China University of Mining and Technology (Beijing) Beijing100083 China College of Energy and Mining Engineering Shandong University of Science and Technology Qingdao 266590 China College of Safety and Environmental Engineering (College of Safety and Emergency Management) Shandong University of Science and Technology Qingdao 266590 China 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 

出 版 物：《IOP Conference Series: Earth and Environmental Science》 

年 卷 期：2021年第769卷第3期

摘      要：Aiming at the feasibility of applying glass fiber concrete as a new material to tunnel engineering, with the help of a combination of theoretical analysis, laboratory tests and engineering applications, the effect of glass fiber on the mechanical properties of concrete under different dosages and different lengths is studied. By monitoring the cracks in the middle partition wall, and applying the glass fiber to the middle partition wall in Laoshan Tunnel, to achieve the verification of the optimal length and the optimal mixing amount. The main conclusions are: (1) When the length of glass fiber is 12 mm, the tensile and compressive strength reach the maximum value; (2) Determine the optimal volume rate is 1% in order to prevent the concrete cracking effectively; (3) The crack resistance of the mid-board with glass fiber concrete is better than the ordinary concrete, which proves the feasibility of practical application of glass fiber concrete.