Page 196 - 《水资源与水工程学报》2022年第3期
P. 196

1 9 2                    & ' ( ) & * + , -                 2022 $

                 ofventilation,thetemperaturestressplaysaleadingroleinthestresschangeofthecouplingstructure.
                 After21days ,thejointcouplingeffectofliningsupportreaction,surroundingrockpassivesupportreac
                 tionandsurroundingrockboundaryconstraintshouldbeconsidered.48daysbeforetheconvection,the
                 innersideofthestructurewasstrained ,andthemaximumtensilestressof155kPaoccurredintheinner
                 sideofthearchwaist.After48days,thecompressivestressofthestructureincreasedrapidly,andthe
                 couplingstressincreasedatthehighestratefrom48to60days.Withthedecreaseofthetemperature,
                 thetensilestressofarchroofandbottomincreasedsharplyat-1.95℃,andthenstartedtodecrease
                 slowlyat-3.5℃.Thisstudyrevealsthewholedynamicprocessofsurroundingrock-supportingstruc
                 tureinteractionunderthermalaction ,whichcanprovideatechnicalsupportforthesafeconstructionof
                 tunnelsincoldregions.
                 Keywords:hydraulictunnel;surroundingrock-supportingstructurecoupling;thermal-mechanical
                 action;mechanicalproperty;interactionmechanism;numericalsimulation
                                                               º[§û`±7EÞvýÉdÝô"@Wlvú¯
            1 ./01
                                                               Ðô"‹“¡‚‹˜™A(^, )¿dÝô"ë
                 ®É¿ÿ¤, dÝ*ÑlX÷ñô;fé                         <· 1℃, %¯ÐÿÜC{·ô"ùÁ<· 0.5
            ê, Äô"‹Ü¡‚‹)P`aÖ×, vúç ¿Ö                          ℃, {k¡‚âkû 0.033MPa。®°•             [15] º[c
            dý((¿p, ç&|üçóÃÖè。dÝ*Ñl                           (§ûÀ`¾šAúA`a“dÝô"v¯Ð
            Xçsvú«É¾‡Ë            [1-3] , ½0®ô"éê@           éê, œô"}ñvXIF§¡‚éê{k。
            FŽ‚6–¶“µùç[ªÇ…2€vú¥ß‚°                             Ÿ«60º[ýɉ¾! `aô"…éêvúô
            “Þ™&Tì™。ìí, (^ñô¿¡‚ç[@v                           "‹、 ¡‚‹&‘STì™。
                                                                                 [17-18]
                                                                       [16]
            úFŽXô"‹“¡‚‹‘á>, v1vú¥                               Panet 、Oreste      ÄÅ·íA&ý¾Úlo
            ßÚl“Éޙ—§&T?´lm™š。                               v5dÝÑl‰¾。ÀÃϕ                [19] 、 v6R•  [20]
                 ®v5lmo, *dÝ¿6nÏ              [4] ÷, v5ô       71搶]e, ‚kA‹ìBB¬w¡“ÿÜ
            "‹‘ST÷`aô"“fä•÷^ì™é                              C|w–¶óÑ - dÝFŽde, !õAv5ó
            ê。mZ•      [5] Z[ve - Q¿FŽde±7!õ                   Ñ - dݵùç[@¡‚Y。v|•                     [21]
            AýÉfô“fä@dÝô"‹b×á>, ›                            ‹ìdݶ1“¯Ðb"•ì™, vvú¯Ðô
                                                        [6]
            œ÷ðô"vvúô"‹éêà。°•                               "“ô"¡‚˜™Ac(±7。£1vúX÷ñ
            71¿‹?ÈÏØ, Þ[Ï]±¾!õA/!¶                            ôéêöt‚6–¶,®­-, ìŠv1¿‚ç
            C¤v5ú¯÷<ô*dݯЍXô"Ö×á                             [@dÝ、 ÑlXFŽª]ܵùç[, Me…
            >, £ ¹ ÿ c ( ô " ‹  Y ï d €  š。_ †               ‰¶ü…‰z.Á$TŽ?´lm+B˜è
            • [7] 、 纕 [8] ;~de4@、 ÏÐV—“¿‹È                   È(^“tÅ。
            4•‰¾, šAúÝ<ô、 fäÜ;f‰uvv5                              sí, Åc??&“(þ24ù¤\Wlvú,
            ô"‹éê, ›œúÝ<ô“ú¯fävô                            71¿‹+ÈXڂkñô - ¨‡ç[@dÝ -
            "‹§µùR˜“ÚÛç[, ú¯fôST÷g                            óÑFŽde, v¿‚ç[@dÝ - óÑFŽX
                                    [9]
            Ýfôéê。Zü0•               Z[¶‚6]e+                µùç[˜™d€, õ*?ÿ+ȍ›˜™v»
            Q ñô¿‚ç[@«'dB9–—, žsÉ                            š, ʍ¿‚ç[@vúdÝ - ¯ÐFŽXU
            ¤9dÝËòÀ“^+b×ÍÎn‹。®ËÄ                              ïô"‹、 ¡‚‹|‘á>ܵùç[ªÇ,
            • [10] 71+ȍ›, Z[§û`EÞvɤv5Á                       (^5›žs}ñÃGvúlm¥ßfí、 *ë
            ¯X¡‚‹˜™Ad€š, !õ£ô"fô                            ÄÉÚlÜޙÍÎ]e7À“n‹。
            ç[ ‚ û s ¨ á ‰ ° ± Ð  71.3%。 ý j ¯
                                                              2  Ÿ”Öò ¡ - ¢x£h]PNÆ
            • [11] 、Neaupane• [12] 、Gatmiti •  [13] 7 1 THMD
            (thermohydromechanicaldamage) FŽde, vɤ             sL!¿‚ç[@'dvúdÝ - ¯ÐFŽ
            v5ô"“¡‚‹‘á>˜™A(^, ›œ                            Xµùç[ª], Åcîdݓ¯Ð”s¥ªï
            ¶ê]`vv5X÷‚éê²k。V!•                        [14]   ðPÞµÉ÷‚Ë€, 6Ødݓ¯ÐÖd,
   191   192   193   194   195   196   197   198   199   200   201