20.500.12556/RUL-84046
Analiza nabrekanja temeljnih tal globokega vkopa Dragučova
Ground swelling analysis of the deep cut Dragučova
Magistrska naloga obravnava nabrekanje temeljnih tal v globokem avtocestnem vkopu Dragučova, kjer so se kmalu po izgradnji začele pojavljati neravnine na vozišču v obliki neenakomernih dvižkov. V uvodnem delu naloge je na kratko opisana zgodovina geoloških raziskav in gradnje vkopa. V nadaljevanju so predstavljene metode za prepoznavanje nabrekalnega potenciala in teorija računanja vertikalnih deformacij z nelinearno analizo in modelom »Soft soil«, ki ga uporablja program PLAXIS. V osrednjem delu naloge so najprej predstavljeni rezultati laboratorijskih preiskav miocenskega laporja, s katerimi smo določili osnovne geotehnične lastnosti, nabrekalni potencial in izmerili nabrekalne deformacije in nabrekalni tlak. Rezultate laboratorijskih meritev smo uporabili pri nelinearni analizi vertikalnih deformacij, s katero smo računali dvižke temeljnih tal od začetka gradnje vkopa. Nato smo z enakimi parametri izdelali še materialni model vkopa, s katerim smo določili dvižke temeljnih tal in pričakovani časovni razvoj deformacij. Rezultate nelinearne analize in materialnega modela smo primerjali in ugotovili zadovoljivo ujemanje velikosti napovedanih deformacij. Ocenili smo delež že mobiliziranih nabrekalnih deformacij in čas mobilizacije preostalega deleža le teh.
The master thesis analyses swelling deformation that appeared in the deep motorway cut at Dragučova near Maribor. Soon after construction the deformation appeared as a pavement differential heave in the longitudinal and transversal direction. In the introduction the thesis presents geological investigation for the design and the history of the deep cut construction. It continues with the introduction of the methods for the recognition of swelling potential and with the theoretical background of a nonlinear analysis of vertical strain and the Soft soil model used by the programme PLAXIS. In the main part of the thesis the results, gathered with the experimental work and including index properties, swelling potential, swelling deformation and swelling pressure, are presented. These results were used for conventional computation of nonlinear vertical deformations and as input for the deep cut material model made in PLAXIS. The calculation results of vertical swelling deformations determined by using the two methods are in good agreement. Finally, the ratio of already mobilized heave and the time development of the expected deformation in the future are estimated.
AC globoki vkop
analiza
nabrekanje
mehčanje
materialni model
Highway deep cut
analysis
swelling
softening
material model
true
false
false
[J. Kastigar]
Slovenski jezik
Angleški jezik
Magistrsko delo/naloga
2016-07-07 02:49:42
2016-07-22 09:29:15
2022-10-27 10:48:37
0000-00-00 00:00:00
2016
0
Ljubljana
0
0000-00-00
NiDoloceno
NiDoloceno
NiDoloceno
0000-00-00
0000-00-00
0000-00-00
624.131.1(497.4)(043)
7512929
BG2020_Kastigar.pdf
BG2020_Kastigar.pdf
1
724AFDB25B961EACC4486590A4E810EB
73e7b9b07ec9cd876d209d5c098240b69dc435ee7a61d81a04bfc386fb4c2af5
dac063c8-a1b2-11eb-a523-00155dcfd717
20.500.12556/rul/707586d5-c524-4960-bab5-1cc7e070ae14
https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=97858
Fakulteta za gradbeništvo in geodezijo
0
0
0