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035 _a.b10188265
099 9 _aAIT Thesis no.GT-86-35
100 1 _aHsieh, Yu-shan
245 1 0 _aDesign and construction aspects of the central tunnel in Taiwan, Republic of China
260 _aBangkok :
_bAsian Institute of Technology,
_c1987
300 _a160 p.
490 1 _aThesis ;
_vno. GT-86-35
500 _aA thesis submitted in partial fulfilment of the requirements for the degree of Master of Engineering, School of Engineering and Technology
502 _aThesis (M.Eng.) - Asian Institute of Technology, 1987
520 _aThe support requirements of a section of the Central tunnel (Part of the South Link Railway Project in Taiwan, R.O.C.) are evaluated using the New Austrian tunneling method. The analysis is firstly conducted using four empirical methods the Geomechanics Classification (RMR method), BIENIAWSKI (1973), the NGI-Q system, BARTON et al., (1974), Rock Structure Rating (RSR concept), WICKHAM et. al. (1974) and Rock Quality Designation (RQD), DEERE et al. (1969). Then the carrying capacity of a modified support system based on an observational approach in the tunnel is checked by the s hear failure theory of the NAHL An analytical method, rock-support interaction analysis, is used to determine support requirements for induced stress conditions. These predictions are compared in order to investigate the applicability and flexibility of the modified support systems to the rock conditions encountered. A valuation, comparison and correlation of design methods, recommend support works and geological parameters involved is carried out. A cost analysis of the support systems provides a comparative evaluation of the predicted support in terms of economy. The results of the analysis indicate that the rock mass qualities investigated range from fair to very poor and the corresponding actual supports used can be reduced to 28% and 8% in cost for fair and poor rock condition, but should be increased to 10% for very poor rock condition. The modified support systems are generally more conservative than those recommended by the four empirical methods; however, t:hey are less conservative than those of a rock-support interaction analysis
650 0 _aTunnels
_xTaiwan
_xDesign
700 1 _aRantucci, Giovanni,
_eChairperson
700 1 _aChandra, Sarvesh,
_eExamination Committee
700 1 _aBalasubramaniam, A.S.,
_eExamination Committee
710 2 _aRet-Ser Engineering Agency, R.O.C.,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. GT-86-35
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B19289
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