Emergency Closure

We had a little emergency at the Thrift Shop which forced us to close our doors. The ceramic tile flooring near the front door started cracking and rising. Needless to say we ushered our customers out through our back door and called C. E. (civil engineering) and informed them of our "problem". We're still unsure if it's frozen pipes or some other structural problem. But the flooring is swelling/rising and when I left it was about 12 to 15 feet in length and at least 5 feet in width and still spreading. Ceramic tiles are broken in half and were shattering while we were there, talk about freaky. I hope to hear back from CE and see what the problem is and when it will be fixed.