... , lake dam, mine remainings, reservior, tunnel, liquid storage pool(pit, mine) Preventing leakage in roadbed and other ... protection, etc.). 3) Municipal Engineering (subway, on the ground floor of the building, planted roof, the roof garden ... Petrochemical (chemical plants, oil refineries, gas storage tanks of the anti-chemical reaction tanks, sedimentation tanks of the lining, etc.). 6), Mining ...