چکیده مقاله
Two key factors in order to examining a given tunnel boring machine’s performance, especially in hard rock arethrust force and penetration rate In recent years various indices have been developed from the analysis of the forcepenetration curve of the penetration test to present rock drillability, boreability, and brittleness In the present study,a series of punch penetration tests were performed to explore the effect of punch penetration test indices on TBM’sfield performance parameters using compiled data from Kerman water tunnel The samples were collected fromrock chips during boring time in 8 different lengths of the tunnel After performing tests, three indices wereextracted from the result of experiments and one of them was new index that is developed in present study Allindices were considered in investigations to obtain relevant to TBM parameters, including thrust force andpenetration rate Besides tunnel boring Machine’s parameters, field penetration index FPI as an adjusted indexwere compared with these indices Comparisons showed PSI and Area under graph AUG gave the bestrelationships with thrust On the contrary, new developed brittleness index had good correlation with penetrationrate Likewise, these investigations illustrated a good agreement between Field penetration index and punchpenetration tests indice
نویسندگان
iraj Khosravi
Master of science studenent in Shahrood university of technology
ahmad Ramezanzadeh
School of Mining, Petroleum and Geophysics engineering, Shahrood University of Technology
شیوه ارجاع
Khosravi, iraj and Ramezanzadeh, ahmad,1398,Impact of punch penetration indices on hard rock tunnel boring machineperformance: A case study,The 13th Iran Tunnel Conference,Tehran
ارائهشده در
مجموعه مقالات سیزدهمین کنفرانس تونل ایران28 آبان 1398 · تهران