INFLUENCE OF SPRAYED CONCRETE LAYER THICKNESS ON THE TUNNELING SUPPORTING EFFECT

摘要：

In this paper, the failure process of sprayed concrete under tension is numerically studied through the use RFPA3D (Three-Dimension Realistic Failure Process Analysis). The numerical test on the sprayed concrete under biaxial tensile stress is conducted, and then four specimens with different thickness of the sprayed concrete layer are analyzed and compared. The comparisons show that along with the increase of the thickness of the sprayed concrete layer, the load support capacities also increase with a decrease in flexibility. It is indicated that the thickness of the sprayed concrete layer is an important factor influencing the crack distribution and load support capacities of the specimens.

作者: XIAN-ZHANG GUO CHUN-AN TANG ZHENG-ZHAO LIANG TIAN-HUI MA

作者单位: Northeastern University Shenyang, 110004, China School of civil and hydraulic Engineering of Dalian University of Technology Dalian Dalian, 116024,C

会议类型: 国际会议

会议名称: The 7th International Symposium on Rockburst and Seismicity in Mines(2009年第七届国际岩爆与微振动性学术研讨会)

会议地点: 大连

会议语种:英文

页码: 695-698

在线出版日期: 2009-08-21（万方平台首次上网日期，不代表论文的发表时间）