Volume 11 Issue 4
Apr.  2011
Turn off MathJax
Article Contents
MA Jianqin, CHEN Wanchun. 2003: DONIMANT FACTORS INFLUENCING THE EROSION OF ANCHOR SYSTEMS FOR UNDERGROUND SREUCTURE IN SULFIDE-BEARING WALL ROCKS. JOURNAL OF ENGINEERING GEOLOGY, 11(4): 378-384.
Citation: MA Jianqin, CHEN Wanchun. 2003: DONIMANT FACTORS INFLUENCING THE EROSION OF ANCHOR SYSTEMS FOR UNDERGROUND SREUCTURE IN SULFIDE-BEARING WALL ROCKS. JOURNAL OF ENGINEERING GEOLOGY, 11(4): 378-384.

DONIMANT FACTORS INFLUENCING THE EROSION OF ANCHOR SYSTEMS FOR UNDERGROUND SREUCTURE IN SULFIDE-BEARING WALL ROCKS

  • Received Date: 2002-12-20
  • Publish Date: 2003-12-22
  • The durability of shotcrete and rockbolt support system has direct influence on structure stability and operating life in tunnel and underground engineering projects with composite lining. Anchor system, which is mainly made of steel elements, is readily subjected to corroding. Based on the structural features of the tunnel and underground engineering project with composite lining, it can be deduced that the erosion of a bolt can be mainly attributed to the interaction between the anchor system and erosive underground water from wall rocks. In this paper, the dominant factors, influencing the erosion of anchor system of underground structure in sulfide-bearing wall rocks are discussed, especially the formation of erosive underground water in wall rocks and the physico-chemical mechanism for the erosion of a bolt under this condition are described. Based on this mechanism, and a method for estimating the operating life of an anchor system in sulfide-bearing wall rocks is proposed.
  • loading
  • [1] Zeng,X.M.,Lei,Zh.L.,Zhang,W.J.and Ji,W.Zh.,Discus sion about t ime bomb question of bolt,an answer to prof essor Guo Yingzhong.Chinese Journal of Rock Mechanics and Engineering,2002,21(1):143~147(in Chinese).

    [2] Yu,R.R.and Cai,Zh.Zh.,The corrosion and prevention of under ground metal pipel ine.Beijing:Oil Industry Publishing Houses,1998,1~50(in Chinese).

    [3] M a J.Q.,Types and occurrence of corrosive groundwater around un derground structure.Modern Tunnelling Technology,2001,38(1):56~59(in Chinese).

    [4] Hudson,J.A.,Rock engneering principles,Tunnels&Tunnel ling International,1998,O ctober:18~20.

    [5] Lunardi,P.E.,The design and construction of t unnels using the approach based on the analysis of controlled deformat ion in rocks and soils,Tunnels&Tunnelling Internat ional,2000,may ADEC-RS Approach.

    [6] Igarashi,T.and Oyama,T.,Deteriorat ion of wat er qual ity in a reser voir receiving Pyrite-bearing rock drainage and its geochemical mod eling.Engineering Geology.1999,55:45~55.

    [7] Chigira,M.et al..Mechanism and effect of chemical weat hering of sedimentary rocks.Engineering Geology.1999,55:3~14.

    [8] Jaynes,D,Rogowski,A,and Pionke,H.,Acid mine drainage from reclaimed coal strip mines 1.M odel descriptin,Water Resour.Res.1984,20(2):233~242.

    [9] Wunderly,M.,Blows,D.,Frind,E.and Ptacek,C.,sulf ide mineral oxidation and subsequent reactive transport of oxidation products in mine t ailings impoundment:A numerical model,Wat er Resour.Res.1996,32(10):3173~3187.

    [10] Blunden,B.and Indraratna,B.,Pyrite oxidation model for assessing ground-water management st rategies in acid sulfat e soils.Journal of Geot echnical and Geoenvironmental Engineering,2001,127(2):146~157.

    [11] Moses,C.and Herman,J.,Oxidation of pyrite in low temperature acidic solutions:Rate laws and surface textures,Geochimica Cos mochimica A ct a,1991,50:1509~1520.

    [12] Bronswijk J.,et al..Modeling of oxygen transport and pyrite oxidation in acid sulfate soils.J.Envir.Quality,1993,22(2):314~322.

    [13] Ding,D.J.Modern concrete structure,Beijing:Building Indust ry Publishing Houses,2000,239~255(in Chinese).

  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Article views (2477) PDF downloads(850) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint