Construction Management–30, Mezhgorye, Russia:

A. Yu. Pedchik, First Deputy Head

College of Mining, National University of Science and Technology — MISIS, Moscow, Russia:
S. V. Chmykhalova, Professor, Doctor of Engineering Sciences, tchmy@mail.ru
S. V. Shevchuk, Student
S. V. Shentseva, Student

The article addresses one of the challenges of mining and construction: mine planning and construction is as a rule fulfilled with incomplete initial data on natural conditions of a planning and construction object. A complete and unbiased pattern of variability of initial conditions in a mine can only be obtained when mining has been finished. Eventually, the soundness and optimality of mine engineering, economical and environmental decisions can adequately be evaluated and validated only upon completion of all mining operations. This study reports the results of rock mass strength analysis in Yukspor Tunnel driven by Construction Management–30. The tunneling is carried out in rocks of varied strength and, thus, at different inputs of labor and non-human resources. The local urthite/ijolite zone is composed of mixed composition rocks (mediumgrained trachytoid ijolite/urthite with pockets of pegmatite, feldspathic ijolite/urthite, finely grained ijolite/urthite) and homogenous rocks. It is advised to consider the incompleteness of data on site conditions at mine planning stage and to perform the related calculations for three scenarios: lowcost, moderate/most probable and expensive. The data on the project implementation conditions are refined in the course of the implementation. The introduction of this system of accounting for scatter of rock-hardness ratio in cost estimation of necessary resources requires:
• improvement of the current management system;
• creation of a mobile lab for measurement and control of rock-hardness ratio;
• prompt processing and delivery of measured values of rock-hardness ratio to the appropriate subdivisions in a mine;
• timely notification of a customer on progress of work, with the obtained results supplied;
• implementation of management and other functions toward uninterrupted mining and construction.

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