Risk analysis rock falls of Khansar tunnel

Document Type : Original Article

Authors

Master of Science, Khatam Al-Anbiya (PBUH) Construction Headquarters - Road and Urban Development Holding - Rahiran Institute, Tehran, Iran

Abstract

The purpose of this study is to identify the condition of Khansar tunnel. Hazard identification and analysis was performed by Reynolds matrix. Aerial images and photographs of coal phylite rock masses and their outcrops on the ground surface were prepared. Observations. Field and stone sampling the samples were transferred to the X-ray jump laboratory in the undergraduate department of the University of Tehran and the results were obtained and mineralogical studies were obtained. . The location of the tunnel was measured using synoptic to determine the information about single-position compressive strength in both dry and wrong conditions for rock mass and its comparison to determine the risk of subsidence has been shown due to the slope of the mass layer. The rock and the specified angles between 40 and 130 degrees of the mass fall status for the tunnel were determined using the Reynolds matrix and the obtained coefficients. The risk of the situation of the upper tunnel area is assessed, for which purpose it is very important to consider safety features in the excavation of the Khansar tunnel.

Keywords


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