Page 156 - 《水资源与水工程学报》2023年第4期
P. 156
!34 " ! 4 # & ' ( ) & * + , - Vol.34No.4
2023 $ 8% JournalofWaterResources&WaterEngineering Aug.,2023
DOI:10.11705/j.issn.1672-643X.2023.04.18
DEXFGGHìFIJKvwxCZDE
1 2
? É , <ÊS
(1. 01NI& päLMNO&P, /0 01 710048;2. >I& päNO&P, L³ 200092)
H I: v¡^Îìupc^ùÆq¢, ^wWÎûù^
¤oq¯^AÂl|&。$, ^wWÎ
I7ZMQî;]pWÎI7óÛ9¤, /îOûÅ、 \N8。±~IrI7óÛ;<;]pWÎI7Z
KWÎxyd、 A¬i^|W, +'wLuh^wWÎI7ZÌ8qr, »Ì8qr^°Øûù?^XW^w
WÎxyd, /¢^wWÎxydµîa^;]pFóÛ9¥。g»Ì8qr? 3 xê>^w
vw
^ìupc^ùÆqr
¤o^wWÎI7ZÆ。3 xc^ùÆÌ8¥h^u«¬U5K¾Æ{Ì°, u«
Ìi·¸²^w
vw^UVÇÈK£ÿ^qróÛ¯¼K, !o^wWÎI7ZÌ8qr^µ¶l。
JKL: ;]pWÎ; ìupc^; WÎI7Z; IrI7óÛ; ùÆq
MNOPQ:TU476.4 7RSTU:A 7VWQ:1672643X(2023)04015207
Shearstiffnesscalculationmodeloftoeinterfaceinreinforcedsoilretainingwalls
1
2
ZHANGWan,CHENJianfeng
(1.SchoolofCivilEngineeringandArchitecture,Xi’anUniversityofTechnology,Xi’an710048,China;
2.CollegeofCivilEngineering,TongjiUniversity,Shanghai200092,China)
Abstract:Theselectionoftoeinterfaceparametersisimportantfortheaccuracyofnumericalmodeling
resultsforreinforcedsoilretainingwallswithhardfacings.However ,theshearstiffnessvalueoftoeinter
facecanbeonlydeterminedfromthesheartestsonconcreteinterfaces,whichisinconvenientandtime
consuming.Acalculationmodelofthetoeinterfaceshearstiffnessisproposedbasedontherelationship
betweentheshearstiffness ,frictionangleandnormalstressoftheconcrete-concreteinterfaceobtained
fromaseriesoflargescalesheartests.Theinputparametersoftheproposedcalculationmodelarewall
heightandtoeinterfacefrictionanglethatcanbeobtainedfromasimpletilttabletest.Theproposedcal
culationmodelisusedforprovidingtheshearstiffnessvaluesoftoeinterfaceinthenumericalsimulations
ofthreereinforcedsoilretainingwallswithdifferenttoerestraintconditions.Itisfoundthatthecalculated
reinforcementstrainsofeachwallagreewellwiththemeasuredones ,andthechangeofthecalculatedre
inforcementloadswithtoerestraintconditionsisconstantwiththephysicalmodeltestresults.Theabove
numericalresultsprovethefeasibilityoftheproposedcalculationmodeloftoeinterfaceshearstiffness.
Keywords:concrete-concreteinterface;reinforcedsoilretainingwall;interfaceshearstiffness;large
scalesheartest;numericalsimulation
^Ìi»>z^s@pði, kå
^Î@
1 ./01 [1-2]
Æ_、 O(u«Ìi^ý 。
v¡^Îìupc^^Î0êNd÷xÁ ¾NO¢, ^wWÎ^xydWI7Z
'p&L, ´%÷x;]pè^@'&L, I^wÝåS~"#ð;]p8VïÎ@AZ^ê
ÄÔØÁ'¢¼=êZ, &¨o^Î ' ¼^w >'8aU, ^w
vw'8aU [3-4] 。^
WÎ。^wWÎL^xy|iKu«^Î×d w
vwoc^i&¶?W=lÿDêµøØ
!"#$:20230220; %$:20230327
'()*: !"#$%&'()*(42007264、41772289、52009107)
+,-.: ¶ s(1990—), ã, /03, 45, t:, ;<=>?¹pNO。
¥¦+,: ®Lh(1972—), ., Û·ö!3, 45, 67, 4589:, ;<=>?ìup¯¶K²@ùÕ、 ¹Vi&KNO。