000 03568cam a2200433 4500
005 20260818212608.0
008 201198s1994 th r 0000|0 eng d
035 _a.b10570032
099 9 _aAIT Thesis no. GT-93-16
100 1 _aAlagiyawanna, A. M. N.
245 1 0 _aReverse analysis of clayey ground properties using the shield driven method
260 _aBangkok :
_bAsian Institute of Technology,
_c1994
300 _a85 leaves
490 1 _aAsian Institute of Technology. Thesis ;
_vno. GT-93-16
500 _aA thesis study submitted in partial fulfillment of the requirements for the degree of Masters of Engineering, School of Civil Engineering
502 _aThesis (M.Eng.) - Asian Institute of Technology
520 _aIn this study, a model which could well rep resent the shield behavior in clayey ground was developed. In modelling the loads acting on the shield, it was considered as a large load cell. More attention was paid to model the force on cutter face and that on skin plate. Force due to the earth pressure on the skin plate is obtained considering the relative displacement of ground around the skin plate. At the cutter face, earth pressure acting on the circumference and pressure on cutter face from the mud in the chamber were also considered in addition to the earth pressure normal to the cutter face. This model was used to estimate the clayey ground properties by reverse analysis method. Ground properties were obtained by applying non- linear least square method to the equilibrium conditions of forces and moments . Modified Marquart method was used for reverse analysis and linear and non- linear parameters were separated in the reverse analysis. The overall scheme of reverse analysis was implemented in a computer program which was coded in FORTRAN 77. Validity of the model was studied comparing the ground properties obtained from the reverse analysis with some of the available values. Data used in the reverse analysis was obtained from the single track railway tunnel project, which was constructed at the seaside of Tokyo bay by mud shield driven method. Therefore, ground properties obtained from this study can be used in Tokyo clay layer.
650 0 _aShields (Geology)
700 1 _aSugimoto, M.,
_eChairperson
700 0 _aNoppadol Phien-Wej,
_eCo-Chairperson
700 1 _aBalasubramaniam, A.S.,
_eExamination Committee
710 2 _aThe Government of Korea,
_eScholarship donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. GT-93-16
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B16173
907 _a.b10570032
_bmnait
_cs
902 _a250528
998 _b2
_c951012
_dm
_ea
_fs
_g0
945 _lmnait
945 _lmnait
945 _lmnarc
945 _lmnarc
942 _c20
942 _c40
909 _aBarcode : 30050120708895
_bCREATED : 1995-10-15
_cRECORD # : i1072039x
_dLPATRON : 0
_eLCHKIN : -
_f# RENEWALS : 0
_g# OVERDUE : 0
_hIUSE3 : 0
_iTOT CHKOUT : 0
_jTOT RENEW : 0
909 _aBarcode : 30050120708713
_bCREATED : 1995-10-15
_cRECORD # : i10720406
_dLPATRON : 0
_eLCHKIN : -
_f# RENEWALS : 0
_g# OVERDUE : 0
_hIUSE3 : 0
_iTOT CHKOUT : 0
_jTOT RENEW : 0
909 _aBarcode : 30050120308183
_bCREATED : 2016-05-26
_cRECORD # : i12995290
_dLPATRON : 0
_eLCHKIN : -
_f# RENEWALS : 0
_g# OVERDUE : 0
_hIUSE3 : 0
_iTOT CHKOUT : 0
_jTOT RENEW : 0
909 _aBarcode : 30050120929582
_bCREATED : 2019-12-14
_cRECORD # : i13240195
_dLPATRON : 0
_eLCHKIN : -
_f# RENEWALS : 0
_g# OVERDUE : 0
_hIUSE3 : 0
_iTOT CHKOUT : 0
_jTOT RENEW : 0
999 _c101507
_d101507