Zaštita duboke građevinske jame u urbanoj sredini korištenjem stupnjaka od mlazno injektiranog tla

master's thesis

• Title (english): The deep pit protection in an urban area with a jet-grouting technology
• Author: Petar Hanc
• Mentor: Krešo Ivandić (mentor)
• Committee member: Igor Petrović (predsjednik povjerenstva)
• Committee member: Krešo Ivandić (član povjerenstva)
• Committee member: Stjepan Strelec (član povjerenstva)
• Committee member: Boris Kavur (član povjerenstva)
• Granter: University of Zagreb; Faculty of Geotechnical Engineering; Varaždin
• Defense date and country: 2020-09-21, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Interdisciplinary Technical Sciences; Environmental Engineering

Abstract

Građevinske jame izvode se u svrhu obavljanja građevinskih radova na
temeljenju budućeg objekta ili izvođenju objekata ispod površine tla. Prema potrebnoj
dubini izvođenja radova postoje plitke i duboke građevinske jame. Prilikom iskopa
građevinske jame, prvenstveno kod dubokih jama izvodi se zaštita građevinske jame
različitim metodama zaštite i tehnologijama izvođenja konstrukcija. U radu se prikazuje
zaštita duboke građevinske jame pomoću stupnjaka korištenjem mlazno injektiranog tla.
Obrađuje se pojam građevinske jame te opći prikaz vrste konstrukcija koje se koriste u
svrhu zaštite građevinskih jama. Tehnologija mlaznog injektiranja tla detaljnije je
opisana prikazom mogućih postupaka izvođenja, preklapanje stupnjaka tvoreći
vertikalnu zavjesu, kontrola i monitoring radova, prednosti i nedostaci mlaznog
injektiranja. Primjer projekta izvedbe zaštite građevinske jame korištenjem stupnjaka je
izvedba poslovne građevine dilatacije „I“. Projekt je poslužio u svrhu prikaza izvođenja
tehnologije mlaznog injektiranja u uvjetima visoke razine podzemne vode i neposredne
blizine okolnih građevina s prikazom problematike tijekom izvedbe radova na
gradilištu.

Abstract (english)

Construction pits are dug for the purpose of performing construction works
based on the future establishment or the performance of objects below soil surface.
According to the required depth of performing works, there are shallow and deep
construction pits. When excavating construction pits, primarily deep pits, their
protection is provided by using various protection methods and construction
technologies. This paper shows the protection of a deep construction pit through
columns using a jet grouting technology. The concept of a pit construction and the
general view of the type of the constructions used for the purpose of the protection of
construction pits are presented in the paper. The jet grouting technology is described in
more detail by displaying possible methods of performance, overlapping of columns
forming vertical curtain, control and monitoring of the works, advantages and
disadvantages of jet grouting. An example of a construction project to protect the
construction pit using columns is the construction of a business building dilatation “I”.
The project was used for the purpose of presenting export jet grouting technologies in
conditions of high groundwater levels and the immediate vicinity of surrounding
buildings with the presentation of problems during the executions of the works on the
construction site.

• Keywords: građevinska jama; stupnjaci; mlazno injektiranje tla
• Keywords (english): construction pit; columns; jet grouting technology
• Language: croatian
• URN:NBN: urn:nbn:hr:130:895324
• Study programme: Title: Geoenvironmental Engineering; specializations in: Geoenvironmental Engineering, Environmental Management, Water Management; Course: Geoenvironmental Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/ inženjerka inženjerstva okoliša (magistar/magistra inženjer/ inženjerka inženjerstva okoliša)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access; Embargo expiration date: 2021-05-31
• Created on: 2020-10-12 08:37:23