基于等效模量法的數(shù)字巖芯三軸壓縮行為研究
打開文本圖片集
A Study on Triaxial Compression Behavior of Digital Core Based on EquivalentModulus Method
LIN Tiejun1*， ZENG Xin1，SUN Xin2 ，YU Hao1 ，YU Wenshuai3
1.StateKybdploaiotsi 2.Engineeringoehsiteilnidi 3.EngineeringTchologResearchIstitute，etroChinaouthwestOilandGasfieldCompany，Chengdu，icuanO，ina
Abstract：Tddresthechalengesoforingideephard，andbitleformations，suchsdicultiesiobtainngoplete coresamplesandthe highcostof indoorrock mechanics experiments，anumericalapproach is employed.Amulti-component digitalcore model，structuredonaVoronoipolyhedron frameworkisestablishedaccording tomineralcompositioncontent.An equivalentmodulusmethodisproposedtodynamicallyadjustthemechanicalpropertiesofmineralsundertriaxialcompression conditions.Theigitalore'striaxialcompreionprocssissimulated，yielingfracturepaers，tress-strainc，and elastic modulusvalues，whichalignwith indoorexperimentalresults.Acomparativeanalysisof theeffectsoftraxialpressure on theoverallrockstructureandmineralgrains isconductedfcusingondamageandstress distribution.Thefindingsreveal thattheimpactoftriaxialpressureonmineralgrainsvariesdependingonthetypeand spatialdistributionofminerals，while also nhibitingcrack propagation intherock.Thisapproachandtheresultsprovidenewinsights intostudiesonthemechanical andfracturebehaviorofdigitalcores，andeffectivelysimulatesrockmechanicsresponsesand fracturepaternsundercomplex geologicalconditions，andoferingtechnicalsupportforsolving thecoringchallenges indeephardandbritle formations.
Keywords：digital core;triaxial compression;rock mechanics;crack propagation; stress distribution 網(wǎng)絡(luò)出版地址：http：//link.cnki.net/urlid/51.1718.TE.20250328.1115.004
引言
深部難鉆地層通常存在取芯困難問題，難以通過室內(nèi)實驗獲取其巖石力學(xué)性質(zhì)，對此，數(shù)字巖芯是一種非常有效的解決手段[I。（剩余13717字）