上游筑坝法尾矿坝爆破震动响应测试与分析

英文篇名：Test and Analysis of Blasting Vibration Response of Tailings Dam Built by Upstream Method
中文刊名：矿业研究与开发
英文刊名：Mining Research and Development
作者：刘红岩 ; 吕淑然 ; 张威 ; 田荣燕
英文作者：LIU Hongyan1 ; 2 ; LV Shuran3 ; ZHANG Wei4 ; TIAN Rongyan2(1.School of Engineering & Technology ; China University of Geoseiences(Beijing) ; Beijing 100083 ; China ; 2.School of Engineering ; Tibet University ; Lasha ; Xizang 850000 ; China ; 3.School of Safety and Environment Engineering ; Capital University of Economics and Business ; Beijing 100026 ; China ; 4.School of Energy and Environment Engineering ; Hebei Technology University ; Tianjin ; Hebei 300130 ; China)
中文关键词：爆破震动 ; 上游法尾矿坝 ; 渗流 ; 震动液化 ; 稳定性分析
英文关键词：Blasting vibration ; Tailings dam built by upstream method ; Seepage ; Vibration liquefaction ; Stability analysis
出版日期：2011-06-30
机构：中国地质大学(北京)工程技术学院;西藏大学工学院;首都经济贸易大学安全与环境工程学院;河北工业大学能源与环境工程学院;
年：2011
期：03
出版单位：矿业研究与开发

摘要

上游筑坝法尾矿坝长期处于欠固结状态,密实度较低、结构松散,在频繁的矿山生产爆破地震作用下极易出现液化区,进而导致坝体失稳。针对某矿业公司对矿山生产爆破导致产生的水平地震加速度进行了测试,并将其作为输入地震波,对尾矿坝进行了动力有限元响应分析。分析结果表明,初期坝较后期堆积坝响应强烈,在爆破震动作用下尾矿坝体内没有液化区产生,因此可以认为矿山目前所采用的生产爆破规模不会对坝体稳定性产生不利影响。
Tailing dams built by upstream construction method are in under-consolidated state for a long time and has low density and loose structure,are very easy to be liquefied and even destabilized under blasting vibration in mine production.The horizontal seismic acceleration produced by production blasting was measured in some mining company,and was adopted as the input of seismic wave to analyze the response of tailing dam on blasting vibration with dynamic finite element method.The analysis results showed that the response of initial dam is larger than that of the latter accumulation dam,and there is no liquefied area in tailing dam under blasting vibration.Therefore,it can be regarded that the current scale production blasting has not adverse effects on the stability of the tailings dam.

引文

[1]汪闻韶.土的液化机理[J].水利学报,1981,11(5):22-34.
    [2]孔宪京,潘建平,邹德高.尾矿坝液化流动变形分析[J].大连理工大学学报,2008,48(4):541-545.
    [3]王文星,曹平.地震条件下尾矿坝稳定性分析[J].中国安全生产科学技术,2006,(6):58-61.
    [4]王凤昊.复杂岩质边坡的动力稳定性和加固效应研究[D].南京:河海大学,2007.
    [5]李育枢,高广运.偏压隧道洞口边坡地震动力反应及稳定性分析[J].地下空间与工程学报,2006,2(5):937-941.
    [6]刘红帅,薄景山.岩土边坡地震稳定性分析研究评述[J].地震工程与工程振动,2005,25(1):164-171.
    [7]周永江,王开云.高地震烈度区堆积体边坡动力响应时程特征分析[J].山地学报,2007,25(1):93-98.
    [8]姚文生,周志广,陈伟韦.鞍钢矿业公司大孤山尾矿坝动力稳定性分析[J].岩土工程界,2009,12(12):65-68,74.
    [9]曹金海,段蔚平,吴小刚.余震动对上游法尾矿坝稳定性的影响研究[J].金属矿山,2009,(7):27-28,72.