Ａｎａｌｙｓｉｓ　ｏｎ　Ｓｔａｂｉｌｉｔｙ　ｏｆ　Ｏｐｅｎｃａｓｔ　Ｓｌｏｐｅ　ｏｆ　ａ　Ｃｏｐｐｅｒ　Ｍｉｎｅ　ｉｎ　Ｙｕｎｎａｎ　Ｐｒｏｖｉｎｃｅ　ｕｎｄｅｒ　Ｒａｉｎｆａｌｌ　Ｃｏｎｄｉｔｉｏｎ

doi:10.3969/j.issn.1009-0479.2018.03.005

Abstract

Abstract: Ｓｔａｂｉｌｉｔｙ　ａｎａｌｙｓｉｓ　ｏｆ　ｓｌｏｐｅ　ｉｓ　ｔｈｅ　ｃｏｒｅ　ｉｓｓｕｅ　ｆｏｒ　ｓａｆｅ　ｐｒｏｄｕｃｔｉｏｎ　ｏｆ　ｏｐｅｎ　ｐｉｔｍｉｎｉｎｇ．Ｍｏｓｔ　ｏｆ　ｌａｎｄｓｌｉｄｅｓ　ｏｃｃｕｒ　ｉｎ　ｒａｉｎｙ　ｓｅａｓｏｎｓ　ｏｒ　ａ　ｓｈｏｒｔ　ｔｉｍｅ　ａｆｔｅｒ　ｒａｉｎｆａｌｌ．Ｓｏ　ｔｈｅ　ｅｆｆｅｃｔ　ｏｆ　ｒａｉｎ　ｆａｌｌ　ｓｈｏｕｌｄ　ｂｅ　ｔａｋｅｎ　ｉｎｔｏ　ｃｏｎｓｉｄｅｒａｔｉｏｎ　ｉｎ　ｔｈｅ　ａｎａｌｙｓｉｓ　ｏｆ　ｓｌｏｐｅ　ｓｔａｂｉｌｉｔｙ．Ｔｈｅ　ｓｔａｂｉｌｉｔｙ　ｏｆ　ｔｈｅ　ｏｐｅｎｃａｓｔ　ｓｌｏｐｅ　ｏｆ　ａ　ｃｏｐｐｅｒ　ｍｉｎｅ　ｉｎ　Ｙｕｎｎａｎ　Ｐｒｏｖｉｎｃｅ　ｗａｓ　ａｎａｌｙｚｅｄ　ｂｙ　ｔｈｅ　ｓｉｍｕｌａｔｉｏｎ　ｏｆ　ＵＤＥＣ　ｓｏｆｔｗａｒｅ　ｂａｓｅｄ　ｏｎ　ｔｈｅ　ｐｈｙｓｉｃｏ－ｍｅｃｈａｎｉｃａｌ　ｐａｒａｍｅｔｅｒｓ　ｕｎｄｅｒ　ｗａｔｅｒ－ｓａｔｕｒａｔｅｄ　ｓｔａｔｅ．Ｂａｓｅｄ　ｏｎ　ｔｈｅ　ｇｅｎｕｉｎｅ　ｃｏｎｄｉｔｉｏｎ　ｏｆ　ｔｈｅ　ｅｎｇｉｎｅｅｒｉｎｇ　ｃｏｎｓｔｒｕｃｔｉｏｎ，ｔｈｅ　ｓｉｍｕｌａｔｉｏｎ　ａｎａｌｙｓｉｓ　ｗａｓ　ｄｉｖｉｄｅｄ　ｉｎｔｏ　ｓｉｘ　ｓｔｅｐｓ　ｉｎｃｌｕｄｉｎｇ　ｔｈｅ　ｏｒｉｇｉｎａｌ　ｓｔａｔｅ　ｏｆ　ｔｈｅ　ｓｌｏｐｅ　ａｎｄ　ｆｉｖｅ　ｅｘｃａｖａｔｉｏｎ　ｓｔｅｐｓ．Ｔｈｅ　ｒｅｓｕｌｔｓ　ｓｈｏｗ　ｔｈａｔ　ｔｈｅ　ｌｏｗｅｒ　ｓｌｏｐｅ　ｇｒａｄｕａｌｌｙ　ｌｏｓｔ　ｓｕｐｐｏｒｔ　ｗｉｔｈ　ｔｈｅ　ｅｘｃａｖａｔｉｏｎ　ｉｎ　ｓｌｏｐｅ　ｆｏｏｔ，ａｎｄ　ｔｈｅ　ｏｖｅｒｌｙｉｎｇ　ｓｔｒａｔａ　ｗｉｌｌ　ｓｌｉｄｅ　ａｌｏｎｇ　ｔｈｅ　ｗｅａｋ　ｉｎｔｅｒｃａｌａｔｅｄ　ｌａｙｅｒ　ｗｈｅｎ　ｓａｆｅｔｙ　ｆａｃｔｏｒ　ｒｅｄｕｃｅｓ　ｔｏ　ｌｅｓｓ　ｔｈａｎ　１．Ｔｈｅ　ｓｔｒｅｎｇｔｈ　ｏｆ　ｔｈｅ　ｓｏｆｔ　ｉｎｔｅｒｌａｙｅｒ　ｃｏｎｔｒｏｌｓ　ｔｈｅ　ｓｔａｂｉｌｉｔｙ　ｏｆ　ｔｈｅ　ｓｔｏｐｅ，ａｎｄ　ｒａｉｎｆａｌｌ　ｉｓ　ａｎ　ｉｍｐｏｒｔａｎｔ　ｉｎ
ｄｕｃｉｎｇ　ｆａｃｔｏｒ　ｏｆ　ｔｈｅ　ｓｌｏｐｅ　ｉｎ　ｓｔａｂｉｌｉｔｙ．Ｔｈｅｒｅｆｏｒｅ，ｔｈｅ　ｍｏｎｉｔｏｒｉｎｇ　ｏｆ　ｔｈｅ　ｗｅａｋ　ｉｎｔｅｒｃａｌａｔｉｏｎｓ　ｍｕｓｔ　ｂｅ　ｓｔｒｅｎｇｔｈｅｎｅｄ　ｉｎ　ｌａｔｅｒ　ｐｒｏｄｕｃｔｉｏｎ，ａｎｄ　ｃｏｎｄｕｃｔｅｄ　ｅｎｇｉｎｅｅｒｉｎｇ　ｔｒｅａｔｍｅｎｔ　ｗｈｅｎ　ｎｅｃｅｓｓａｒｙ．Ｉｎ　ａｄｄｉｔｉｏｎ，ｉｔ　ｉｓ　ａｌｓｏ　ｖｅｒｙ　ｉｍｐｏｒｔａｎｔ　ｔｏ　ｄｅａｌ　ｗｉｔｈ　ｓｌｏｐｅ　ｄｒａｉｎａｇｅ　ａｐｐｒｏｐｒｉａｔｅｌｙ．

Key words: ｓｔａｂｉｌｉｔｙ, ｄｉｓｃｒｅｔｅ　ｅｌｅｍｅｎｔ　ｍｅｔｈｏｄ, ｏｐｅｎｐｉｔ, ｒａｉｎｆａｌｌ

CLC Number:

ＴＤ１２

ＷＥＮＹｉｍｉｎｇ, ＣＨＥＮＧＹｏｎｇ. Ａｎａｌｙｓｉｓ　ｏｎ　Ｓｔａｂｉｌｉｔｙ　ｏｆ　Ｏｐｅｎｃａｓｔ　Ｓｌｏｐｅ　ｏｆ　ａ　Ｃｏｐｐｅｒ　Ｍｉｎｅ　ｉｎ　Ｙｕｎｎａｎ　Ｐｒｏｖｉｎｃｅ　ｕｎｄｅｒ　Ｒａｉｎｆａｌｌ　Ｃｏｎｄｉｔｉｏｎ[J]. HPMug2oMmNrOfxWQHLiEksa6s0hFu9Ox348d7QefarYlaFR5ArkhOwm3Da1pmxmxCtenj1+6luWD#r#n+EPn9L6Ce+9onqnMlT+i, 2018, 34(3): 21-24.

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