Since December, the New Jersey Department of Transportation has reported a 40-foot sinkhole, an 11-foot sinkhole, and most ...

Timothy Bechtel has testified in state and federal courts, and his command of the subject has helped to find buried human ...

and the former land use which is a sand quarry that was located immediately to the west of the sinkhole," said Collins. "Sand can be strong when compacted as the particles are packed together ...

“The sinkhole was growing and growing ... possibly linked to the collapse of unrecorded sand mines.” He adds: “There is also evidence for old sand mining in and around Godstone, including ...

combined with some clay-rich layers in the Godstone sand, that likely would “heave and shrink over time”. An aerial view of the sinkhole in the Ospedale del Mare car park in Naples (EPA ...

A giant sinkhole suddenly swallowed part of a road ... The caves in Godstone were excavated to obtain exceptionally pure sand known as silver sand. This sand was highly prized and used in ...

The repaired street at the site of a water main break about six weeks ago in the 1300 block of South Clay Avenue developed a ...

One common way of repairing sinkholes is to refill the opening with a sand and cement mix. In rural areas it can be more sustainable to excavate down and cap off the hole with reinforced concrete.

Image: A sinkhole that formed on football field in Illinois last year. Pic: Reuters "Sand can be strong when compacted as the particles are packed together, but weak when it becomes wet ...

“When sinkholes happen,” Bechtel said ... “there’s unconsolidated material — there’s sand at the top — and down below, there’s an opening.” Floods and periods of sustained ...