TY - JOUR
T1 - Geostatistical assessment of rock zones for tunneling
AU - Öztürk, C. Atilla
AU - Nasuf, Erkin
PY - 2002/7
Y1 - 2002/7
N2 - Geostatistical assessments can be used for understanding the distribution of regionalized variables (ReVs) in any spatial study. Many researchers have used the theory of ReVs for different modeling purposes such as hydraulics, mining deposits, etc. In this paper, ReV technique is used for understanding the mechanical variation properties of rock zones under sampled and unsampled conditions in sewer tunnels for Istanbul. This study has been carried out for three different rock properties that are compressive strength, rock quality designation (RQD), Schmidt hammer hardness, and one rock cuttability property, net cutting rate. In order to define ReVs distribution, first semivariogram functions are determined and then kriging maps are generated for identifying the regional dependence. Furthermore, it is possible to make estimations for every point within the study area, and prepare maps for the interpretation of regional features of the ReV concerned. Net cutting rate is a cuttability property of rock, which can be regionalized and compared with the mechanical properties of rocks. This can be used for predicting the performance of excavator.
AB - Geostatistical assessments can be used for understanding the distribution of regionalized variables (ReVs) in any spatial study. Many researchers have used the theory of ReVs for different modeling purposes such as hydraulics, mining deposits, etc. In this paper, ReV technique is used for understanding the mechanical variation properties of rock zones under sampled and unsampled conditions in sewer tunnels for Istanbul. This study has been carried out for three different rock properties that are compressive strength, rock quality designation (RQD), Schmidt hammer hardness, and one rock cuttability property, net cutting rate. In order to define ReVs distribution, first semivariogram functions are determined and then kriging maps are generated for identifying the regional dependence. Furthermore, it is possible to make estimations for every point within the study area, and prepare maps for the interpretation of regional features of the ReV concerned. Net cutting rate is a cuttability property of rock, which can be regionalized and compared with the mechanical properties of rocks. This can be used for predicting the performance of excavator.
KW - Cutting rate
KW - Kriging
KW - Mechanical properties of rocks
KW - Semivariogram
UR - http://www.scopus.com/inward/record.url?scp=0036655793&partnerID=8YFLogxK
U2 - 10.1016/S0886-7798(02)00023-8
DO - 10.1016/S0886-7798(02)00023-8
M3 - Article
AN - SCOPUS:0036655793
SN - 0886-7798
VL - 17
SP - 275
EP - 285
JO - Tunnelling and Underground Space Technology
JF - Tunnelling and Underground Space Technology
IS - 3
ER -