Calibration of Rock Cutting Numerical Model Based on Monitoring Data

Scientific paper - Original scientific paper

• Author: Vedran Pavlić
• Author: Mario Bačić
• Author: Meho Saša Kovačević
• Author's institution: University of Zagreb; Faculty of Civil Engineering
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering

Abstract (english)

Prediction of the deformation increment and the final displacement of the rock cutting is a challenging task. Many ambiguities linked with unpredictable nature or rock mass make it difficult to apply the adequate contingency measures. Implementation of common approach, which includes modelling of discontinuity effects with estimated reduction of rock mass strength and modulus of elasticity, usually does not yield satisfactory results. Therefore, a calibration of FEM based numerical model was made by conducting parametric analysis which feeds upon data obtained from extensive on-site monitoring system. A step forward was made in description of numerical parameters of karst discontinuities through consideration of monitoring results, as well as excavation procedures, position, inclination and length of discontinuities and PDC (project design change).

• Keywords (english): discontinuities; karst; numerical modelling; observational method; rock mass
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Sains Malaysiana
• Numbering: vol. 48(10), pp. 2113-2123
• e-ISSN: 0126-6039
• DOI: https://doi.org/10.17576/jsm-2019-4810-06
• URN:NBN: urn:nbn:hr:237:002997
• Publication: 2019
• Type of resource: Text
• Access conditions: Open access
• Created on: 2024-09-04 09:13:27