According to Penang’s hill site guideline, almost 40% of land on the island has very steep slopes of more than 25 degrees. In comparison, only about 5% of the mainland has slopes steeper than 15 ...

Subsurface voids, loose soil pockets, and hidden cavities under foundations pose serious risks to structural stability. They ...

He said rapid temperature swings can cause “the ground to shift more than the pipe can tolerate” and cause stress on older ...