書誌事項
- タイトル別名
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- The Effects of Face-side Packing and Sidewall Softening on the Maintenance of Gate Roadways
- ソデマキ ジュウテン オヨビ ソクヘキ ナンカホウ ニ ヨル サイタン コウド
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説明
The influences of face-side packing and Sidewall softening on the mechanical behaviour of the surrounding rocks and coal seam are investigated using the non-linear finite element analysis method to obtain practical guidelines for the effective measures to maintain gate roadways. The sz-sults of the investigation are summarized as follows.<BR>1) A non-linear finite element analysis is able to provide the optimum design of the packing to corespond with the mechanical properties of roof and floor rocks.<BR>2) It is possible to control the development of failure in the surrounding rocks and enhance the stability of the roadway by selecting the most appropriate conditions of the packing.<BR>3) Sidewall softening by such means as horizontal slot cutting, blasting or boring is effective as analternative method where it is difficult to maintain the roadway by means of packing.<BR>4) The optimum depth of the softened zone is to be at least one to two times asgreat as the width of the roadway.
収録刊行物
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- 日本鑛業會誌
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日本鑛業會誌 103 (1193), 437-442, 1987
一般社団法人 資源・素材学会
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詳細情報 詳細情報について
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- CRID
- 1390001205982258048
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- NII論文ID
- 130007256213
- 40002903141
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- NII書誌ID
- AN00188932
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- ISSN
- 21856729
- 03694194
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- NDL書誌ID
- 3145740
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- データソース種別
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- JaLC
- NDL
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- 使用不可