Lapindo mud resulted in Buildings Fracture

SURABAYA, KOMPAS.com - Feasibility Study Team Results indicate settlement, the land around the center of the Lapindo mudflow at a radius of 1.5 kilometers decreased. Meanwhile, land in the West Village and Jatirejo Siring actually rose to 30 centimeters. Changes in soil structure resulted in settlements and buildings around the cracks.
Because the land around the pond reservoirs vanish, then the soil is also automatically appear on the other side goes up due to pressure.

Feasibility Study of Settlements Team Leader (TKKP) Professor Nyoman Sutantra from Surabaya Institute of Technology, said lower surface of the soil at a radius of 1.5 kilometers around the center of the mudflow caused by the pressure load in the pond mud shelters. Expense is what finally hit the ground around the blast center, so the surface soil decreased along with the emergence of bubbles of gas mixed with mud.

Since November 2009, TKKP recorded average decline in soil around the pond mud Lapindo reached 10 centimeters per month. Therefore, within six months recorded a drop in soil up to 60 inches with the highest point in the segment decreased Porong Highway. "Because the land around the pond reservoirs vanish, then the soil is also automatically appear on the other side goes up due to pressure. Land which rose about 30 feet we found in the western and north western and Jatirejo Siring Village," said Professor Nyoman Sutantra, Wednesday (19 / 5 / 2010) in Surabaya.

Due to this condition, now housing residents and buildings in 13 villages and sub Porong Tanggulangin not fit to live because of the cracks. Some areas, including West Siring, Jatirejo, Mindi, Pamotan, Ketapang, Besuki, and Gempolsari.

According to Professor Nyoman Sutantra, TKKP still continue to examine the feasibility of a number of settlements in the two districts. Eligibility criteria is measured from the level of soil degradation, the concentration of flammable methane in the gas bubbles that appear, water conditions, and the threat of breakdown dike mudguard. "In two to three weeks ahead TKKP will formulate recommendations which were then forwarded to the Governor of East Java. If indeed the settlement residents and the environment really do not feasible, then the residents should be evacuated," he said.