03104nam a2200421 4500 20260818155557.0 th eng .b11533791 AIT Thesis no. GE-95-15 Nguyen Van Hoan Modelling of pushing resistance on cohesionless soil using different scale model tests Bangkok : Asian Institute of Technology, 1996 98 leaves Thesis ; no. GE-95-15 A thesis submitted in partial fulfillment of requirements for the degree of Master of Engineering, School of Civil Engineering Thesis (M. Eng.) - Asian Institute of Technology, 1996 The capacity of cutting equipment depends on the acting load. Nevertheless, the acting load on the cutter face of shield has not been clear. The last year research made clear that the pushing resistance, which does not appear in the design of shield capacity, is an important component of the acting load. This study aims to make the model of pushing resistance on Cohesionless soil by different scale model tests. In this research study, Axial force and torque behavior exhibited in dry compact sand (relative density of 100%) have been investigated. Pushing resistance, as a major component of cutter torque, has been found to be the function of speed ratio (v/f), radius (R0 and Rj) and the number of cutter path (P n), which is different from the theoretic equations. Based on the experimental results the model equations for pushing resistance have been proposed. As the stress concentration occurs at the tip of the cutter bits, the friction concept does not satisfy the test model and two constants known as influencing factors At and b have been introduced to describe the model. These parameters both are found to be the function of face angle (Uc) and clearance angle (y c)· Shields (Geology) Tunnels Sugimoto, M., Chairperson Balasubramaniam, A.S., Examination Committee Ashford, Scott A., Examination Committee The Government of Japan, Scholarship Donor Asian Institute of Technology. Thesis ; no. GE-95-15 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B15105 .b11533791 mnait v 240329 0 960910 m a v 0 mnait mnait mnarc 20 40 Barcode : 30050120718803 CREATED : 1995-04-13 RECORD # : i11836696 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120718811 CREATED : 1995-04-13 RECORD # : i11836702 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160081708 CREATED : 2016-05-16 RECORD # : i12978073 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 77747 77747 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. GE-95-15 30050120718803 2026-08-18 15:55:57 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. GE-95-15 30050120718811 2026-08-18 15:55:57 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. GE-95-15 30050160081708 2026-08-18 15:55:57 1 2026-08-18 40