Safety in the Underground Construction and Operation of the Exploratory Studies Facility at Yucca Mountain (1995) / Chapter Skim
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Safety Management in PNC's Shaft Excavation Effects Project in Japan
Safety Management in PNC's Shaft Excavation Effects Project in Japan
Pages 121-138
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From page 121... ...
PNC held weekly and monthly meetings attended by the heads of all groups to discuss the time schedule and safety issues of each task. The most important goals of safety management are to enhance each worker's sense against dangers and to teach each worker to avoid dangerous actions.
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In 1964 a uranium deposit was discovered in this area, and ~972 marked the start of the Tono Mine's operation. The goal of the mine N ~ O Tono Mine Kyoto .
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From page 123... ...
In 1987, geoscientific studies were begun in the mine and were for the most part aimed at gaining a basic understanding to support a waste disposal project. Scientists conducted in situ experiments observing the corrosion of engineered barrier materials, as well as a hydrochemical investigation of ground water, a geochemical investigation of uranium-series radionuclides using the ore body of uranium, and mine-by experiments (see Figure 2~.
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From page 124... ...
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From page 125... ...
Safety Management in PNC's Shaft Excavation Effects Project in Japan TABLE ~ Rock Mechanical Properties of the Sedimentary Rocks Depth (m)
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From page 126... ...
team excavated I.2 m at a time and then installed the concrete lining, an approach they call the Short Step Mining Method.
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From page 127... ...
;. em 127 S- -N Upper Measurement Drift ~ , em Tsukiyosh Lower Measurement Drift '' 1 Upper Connecting Drift Lower Connecting Drift Fault
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From page 128... ...
assisted in managing the excavation work and gave advice to the other two sections, the Mine Group of the Exploration and Mining Technology Development section and the Shaft Group of the Waste Isolation Research section; both of these fall within the PNC Chubu Works (see Figure 71. The Mine Group, under the Exploration and Mining Technology Development section, is responsible for the management of the Tono Mine.
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From page 129... ...
o 25 S1 A 50 - M1 75 100 125 150 M2GT-1 GT-2 M3t r 1 ,' ,.'1 . ~ L Tsukiyoshi Fault B \ SP2\ , C M4 \ GT-3 GT-4 _ Id, .~ .
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From page 130... ...
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From page 132... ...
Under the laws and regulations for rock labor safety and health, the Local Labor Standards Inspection Office controlled PNC, and under the laws and regulations for mine safety, the Regional Mine Safety Inspection Bureau controlled the SEE Project. These two organizations can be compared to the Occupational Safety and Health Administration and the Mine Safety and Health Administration, respectively.
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From page 133... ...
The central Safety Committee of PNC inspected the site annually. Finally, the Regional Mine Safety Inspection Bureau conducted occasional safety inspections of the Tono Mine.
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From page 134... ...
~ on I ~ ~m =~ en ~ c'' E I I In ~ In m en.= o ~ to In ~ In ~ Q a_ In c' ~ = CO do.
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From page 135... ...
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From page 136... ...
The Mine Safety Committee of Chubu Works, the Safety and Health Committee of Chubu Works, and the Safety and Health Committee of Contractors met once a month. Weekly safety meeting subjects included particular issues of concern at the time of the meeting, operations progress and plarming, a review and reconfirmation of safety issues, and any findings of recent safety inspections.
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From page 137... ...
This approach combined workers from several different organizations in a confined, risky work environment. Two aspects of the safety management approach at Tono Mine during the SEE Project stand out as exceptional contributors to effective safety management: frequent safety meetings, including the weekly meetings of group leaders and the daily meetings of work groups, and safety education, in particular the KY activities.
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From page 138... ...
Daily safety meetings prepared each group for the day's work, made them aware of expected hazards, and reminded them of appropriate safety practices. The most important goals of safety management are to enhance each worker's sense against dangers and teach each worker to avoid dangerous actions.
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