Varovanje gradbene jame parkirno garažne hiše v Ljubljani

diplomska naloga

Matej Hafner (Avtor), Boštjan Pulko (Mentor), Tomo Cerovšek (Član komisije za zagovor), Jože Lopatič (Član komisije za zagovor), Aleksander Srdič (Član komisije za zagovor), Janko Logar (Komentor)

Povzetek

V diplomski nalogi je obravnavano varovanje gradbene jame za objekt parkirno garažne hiše v Ljubljani. Varovalna konstrukcija je bila izvedena s sidranimi slopi po tehnologiji injektiranja pod visokimi pritiski (jet grouting). Sidranje smo izvedli z začasnimi geotehničnimi sidri v enem ali dveh nivojih. V nalogi je podan pregled postopkov za izvedbo jet grouting slopov in začasnih geotehničnih sider po veljavnih standardih. Pozornost je posvečena načinom izvedbe, ki so uveljavljeni pri nas, in problemom, ki se pojavljajo zaradi odstopanja od zhatev tehnične regulative ali nezmožnosti upoštevanja le-te. To je delno posledica zastarele opreme in utečenih postopkov izvajanja del. Dodatno pa na to vplivajo tudi zahteve po čim cenejši izvedbi gradbenih del. V nalogi so predstavljene izkušnje pridobljene med izvedbo varovalne konstrukcije gradbene jame, rezultati kontrolnih preiskav in problemi, ki so se pojavili med izvedbo del, ter rešitve teh problemov. V fazi izvedbe varovalne konstrukcije iz jet grouting slopov smo največ pozornosti posvetili tehnologiji enofaznega postopka injektiranja in njeni učinkovitosti v danih razmerah. Pri izvedbi geotehničnih sider pa smo največ pozornosti posvetili vgradnji in napenjanju preskusnih sider. Na gradbišču nastali problemi so lahko tudi posledica nepopolne gradbene dokumentacije, vključno s starimi in pomanjkljivimi načrti sosednjih objektov. V nalogi je prav tako obravnavano reševanje problemov, povezanih z nepričakovano sestavo temeljnih tal. Ta je pomembno vplivala na težave in zamude pri izvedbi in nemoteno napredovanje del.

Ključne besede

gradbeništvo;diplomska naloga;VSŠ;gradbena jama;jet grouting;modificiran postopek jet grouting;injekcijska masa;začasna geotehnična sidra;sidrne vrtine;napenjanje sidra;preskusna sidra;

Podatki

Jezik:	Slovenski jezik
Leto izida:	2016
Tipologija:	2.11 - Diplomsko delo
Organizacija:	UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik:	[M. Hafner]
UDK:	624.152.6:625.712.63:711.553.2(497.4)(043.2)
COBISS:	7452257
Št. ogledov:	2471
Št. prenosov:	758
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Angleški jezik
Sekundarni naslov:	Protection of construction pit for car-park building in Ljubljana
Sekundarni povzetek:	The subject of this thesis is the execution construction pit for multi-storey car-park building in Ljubljana. The supporting structure was made with high pressure grouting (e.q jet grouting), and anchored with temporary ground anchors in one or two levels. An overview of jet grouting and temporary ground anchors procedures accoding to current standards is shown. A special attention is put on the currently valid execution of works in our country. We primarily examined the problems occurring due to the deviation from technical regulations or inability to stick to them, which may be the consequence of either old equipment or sticking to generally accepted procedures of the execution, as well as requirements for a cheaper execution. The thesis presents the description of experiences gained during the execution works, the results of control examinations, the problems that occurred during the execution and appropriate solutions. In the phase of the jet-grouting-piles execution, which were used as a supporting structure, the attention was on the technology of the single fluid system and its effectiveness in the ground, while with ground anchors the most attention was paid to ground anchor installation and. The problems occurring on the construction site are often result of an incomplete project documentation, often involving the old and incomplete documentation of neighbouring buildings. The solution of issues in relation to the unexpected ground conditions, which significantly delayed the execution of works, is examined.
Sekundarne ključne besede:	graduation thesis;construction pit;jet grouting;modefied jet grouting (precuting);grout;temporary ground anchors;
Vrsta datoteke:	application/pdf
Vrsta dela (COBISS):	Diplomsko delo
Komentar na gradivo:	Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Strani:	XII, 70 str., 8 pril.
ID:	9134580