Primjena koncentriranih eksplozivnih naboja pri rušenju potpora mosta

undergraduate thesis

• Title (english): Application of Concentrated Explosive Charge in Demolition of Bridge Supports
• Author: Mario Šimunović
• Mentor: Vječislav Bohanek (mentor)
• Mentor: Mladen Fusić (komentor)
• Committee member: Ivica Smojver (predsjednik povjerenstva)
• Committee member: Vječislav Bohanek (član povjerenstva)
• Committee member: Mladen Fusić (član povjerenstva)
• Granter: University of Zagreb; (Croatian Defence Academy "Dr. Franjo Tuđman"); Zagreb
• Defense date and country: 2022-02-24, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Interdisciplinary Technical Sciences

Abstract

U ovom završnom radu prikazana je primjena koncentriranih eksplozivnih naboja pri rušenju
potpora mosta, konkretno vanjskim koncentriranim nabojem. Mostovi kao građevine u miru
prvenstveno služe u ekonomske svrhe dok u borbenim situacijama postaju vojni ciljevi od
velikog, a nekad i strateškog značaja. Pod pojmom rušenja elemenata podrazumijeva se fizičko
narušavanje oblika elementa i njegove osnovne funkcije, a u ovom završnom radu fokus će biti
na armirano-betonskom (AB) mostu i njegovim elementima. Rušenje elemenata mosta, potpuno
ili djelomično, provodi se u svrhu stjecanja prednosti nad protivnikom. Armirano-betonski
elementi korišteni za potrebu istraživanja i izrade završnog rada, sastavni su elementi mostova,
vijadukata i nadvožnjaka. U radu se obrađene općenite informacije o eksplozivnim tvarima –
eksplozivima, eksplozivnim nabojima (punjenjima), njihovim vrstama te načinima postavljanja.
Uspoređene su različiti načini postavljanja eksplozivnog naboja na armirano-betonske stupove,
njihova količina i učinak. Napravljen je izračun potrebne količine eksploziva za potrebe
ispitivanja i provedbu rušenja. Vizualni pregled, određivanje tlačne čvrstoće uređajem
sklerometar, ispitivanje ultrazvukom su nerazorne metode ispitivanja provedene za potrebe
završnog rada dok je električna otpornost mjerena uređajem Resipod.

Abstract (english)

This Final BCs Thesis presents the use of concentrated explosive charges for the demolition of
bridge pillars, in particular, the application of external concentrated charge, is presented. Bridges
as structures, during peacetime primarily serve for economic purposes, while in combat
situations they become millitary targets of great, and sometimes strategic importance. Physical
disruption of the shape of the element and its basic function fall under the term demolition of
elements, and in this final paper focus will be on reinforced concrete (RC) bridge and its
elements. Demolition of bridge elements, in whole or in oart, is done for the purpose of gaining
an advantage over the opponent. Reinforced concrete elements used for research and preparation
of final paper are integral elements of bridges, viaducts, and overpasses. The paper deals with
general information about explosive substances – explosives, explosive charges and their types
and placement methods. Different ways of placing an explosive charge on reinforced concrete
solumns, their quantity and effect are compared. The calculation of the required amount of
explosive for testing and demolition was done. Visual inspection, determination of compressive
strenght with a sclerometer device, ultrasonic testing are non-destructive methods which were
conducted for the needs of final paper while electrical resistance was measured with a Resipod
device.

• Keywords: AB element; AB most; eksplozivni naboj; rušenje
• Keywords (english): reinforced concrete pillar; external explosive charge; non-destructive tests; explosive charge; explosive ordnance
• Language: croatian
• URN:NBN: urn:nbn:hr:249:290661
• Study programme: Title: Military Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica inženjer/inženjerka vojnog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica inženjer/inženjerka vojnog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-01-26 11:26:50