But, Sun said, the homemade fallout shelter offers better protection than a basement or concrete ... equal in protection as an underground brick or concrete structure if the structure has brick ...

But the new study is the first to quantify how underground climate change is affecting the integrity of buildings in a city. “Soils, rocks and concrete ... in underground structures were also ...

Uncontrolled and unregulated construction activity over the decade, has led to a 30 to 40-foot deep concrete layer ... but also multi-level basement (underground) car parking facilities.