20.500.12556/RUL-111508 Stabilnosti vrtin pri globokem temeljenju Stability of pile shafts in deep foundation Pravilna in ustrezna izbira tehnologije pri uvrtanih pilotih je ključnega pomena. Z uspešno stabilizacijo vrtine in kvalitetno izvedbo se izognemo morebitnim dodatnim stroškom in potrebni sanaciji ali ponovni izdelavi. Preden pričnemo z geotehničnim projektiranjem pilotov, je potrebno pridobiti čim več kvalitetnih geološko geomehanskih podatkov o zemljinah in hribinah s terenskimi preiskavami. Terenske preiskave se izvajajo skladno po standardu SIST EN 1997-2: 2007 - Evrokod 7: Geotehnično projektiranje - 2. del: Preiskovanje in preizkušanje tal; projektiranje in izdelava pilotov pa po standardu SIST EN 1997-1: 2005 - Evrokod 7: Geotehnično projektiranje - 1. del: Splošna pravila. Pri izdelavi pilota se za stabilizacijo ostenja vrtine uporablja zaščitne cevi in izplake. Zaščitne cevi so v uporabi že več let, medtem ko se je uporaba izplak pojavila šele v petdesetih letih prejšnjega stoletja. Ščitenje ostenja vrtine s cevmi izvajamo v primeru nekoherentnih zemljin ali razrušenih kamnin. Izplačni medij omogoča zaščito vrtine, ko so prisotni mehkejši glinasti ali meljasti sloji. Tako izplačni medij kot zaščitne cevi imata prednosti in slabosti, vendar se obe metodi v praksi uspešno uporabljata. V prvem delu diplomskega dela smo opisali in našteli vrste temeljev s poudarkom na globokih temeljih ter predstavili ključne metode terenskih preiskav. V nadaljevanju smo predstavili metode in postopke izdelave uvrtanih pilotov. Posvetili smo se vrtalnim strojem in opremi za uspešno in kvalitetno izvedbo pilotov. V zadnjem delu smo opisali postopek vgrajevanja zaščitnih cevi in načinu priprave in uporabe izplačnih medijev. Correct and appropriate choice of technology is crucial with regard to drilled piles. Any additional costs, remediation or reconstruction can be avoided by successfully stabilizing and constructing the pile shaft. Before starting the geotechnical projecting of the piles, it is necessary to obtain as much high-quality geologically-geomechanical data about the soils as possible. This information is obtained with field investigations, which must be performed according to the standard SIST EN 1997-2: 2007 - Eurocode 7: Geotechnical design - Part 2: Ground investigation and testing. Designing and constructing the piles is performed in accordance with SIST EN 1997-1: 2005 - Eurocode 7: Geotechnical design - Part 1: General rules. During the process of pile installation, the wall of a borehole is stabilized with a casing pipe and/or using the slurry. The casing method has been in use for many years, while the use of slurries was introduced in the 1950s. Casing is used when there are incoherent soils or loose rocks, while the slurry protects the borehole’s walls in presence of softer clay layers. Both methods have advantages and disadvantages but are equally successful in practice. In the first part of the thesis the types of foundations with an emphasis on deep foundations are defined and listed, which are followed by a presentation of key methods of field investigations. Furthermore, the methods and installation procedures of bored piles are described and succeeded by a demonstration of drilling machinery and equipment for successful and quality execution of the pile. In the last part the procedure of installing protective tubes and preparation and usage of the slurries is described. globoko temeljenje vrtanje piloti pilotna vrtina cevljenje izplačni medij deep foundation drilling piles pile shafts casing drilling slurry true false false Slovenski jezik Angleški jezik Višješolska diplomska naloga 2019-10-02 07:45:51 2019-10-02 07:45:53 2022-08-23 03:43:31 0000-00-00 00:00:00 2019 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 71305 1843807 4503.pdf 4503.pdf 1 9A2EF026C0E0FF729C096270FD711B78 de07258ba49cf16870b8b2448b5f977e6fbbc432dfa85a91cb8b0bcbd98ce34d 6861121a-a1b7-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=123377 Naravoslovnotehniška fakulteta 0 0 0