As the conflicts in Ukraine and Israel have brought urban combat into the forefront, U.S. defense officials are addressing what the complex realm of subterranean warfare will mean for American troops in future scenarios. “Our adversaries have adapted their capabilities against our weaknesses by expa...
Also, the system of catacombs includes cavities of natural origin – karst and dilatancy caves, exploration and construction pits, basements, bunkers, drainage tunnels, storm sewers, etc.The first underground quarries began to appear in Odesa in the first half of the 19th century, during the ...
Use of products of these materials in restoration of supports of extended underground workings (tunnels) has significant economic and environmental effect and also makes it possible to restore hard-to-reach areas.Goncharenko, D. F.Ubyivovk, A. V....
Depending on the spans of tunnels, these methods are readily used to evaluate the overall failure as well as the local damage of tunnel structures. The specific details of the methods are reviewed below. 5.1 Based on deflection or deflection-span ratio The damage assessment based on deflection ...
this industry can contribute to reach the UN global sustainability goals, to reach the desperate battle against global warming and not least to reduce the consequences on third parties resulting from dissension that the global community faces from time to time, nowadays the conflict in Ukraine. Goin...
British photographerAlastair Philip Wiperhas documented asubterraneanfallout shelter inLas Vegas, Nevada, complete with a four-hole putting green surrounded by faux pine trees and painted scenery.More Underground schools "to create safe conditions" for children in Ukraine ...
Using EO to Understand the Significance of Cement Production Infrastructure in the Syrian Conflict In the Afrin region, Kurdsh malitia built extensive networks of trenches, cut and cover hardened tunnels (CCHTs) and underground facilities (UGFs) using reinforced concrete to improve survivability. Airstri...
how the previously designed general morphological model of territorial development for underground city planning that describes geological environment, can be complemented by additional modules aimed at taking into account the features of specific underground objects, namely parking lots and car tunnels. Thes...
gas transport system is particularly important in the context of the construction of gas pipelines bypassing Ukraine."We have a unique gas transport system... K Post 被引量: 0发表: 2011年 MINE BLASTING SAFETY: A CENTURY IN REVIEW This paper summarizes the course of mine blasting safety, parti...
(the principles were developed earlier),as the experimental work in the underground tunnels was complicated by intensive train traffic during a day.A special feature of the research was consideration of a rail as a bar rested on discrete elastic-dissipative supports in a design diagram of the ...