NERV Smart Footing
NERV Smart Footing: it is the most effective, lightest and cleanest method. Also, it disturbs neither surrounding environment nor neighbors. No heavy machinery needed, it can be set up at any condition of areas, ranging from the narrow to the narrowest, provided that a a person can walk into. Moreover, the set-up footing can
immediately support weight loaded, it is not necessary to wait many months for piles to be settled in the ground before continuing with other work, like what you have to do wtih setting bored piles, hexagon piles.
For the concern on ground subsidence, the only way to keep the same subsiding rate between the new footings and those of the main house structure, the new and old structure has to share the same characteristics of footing as much as possible. That is to say, the length of new footing and the size of its cross sectional area has to be in the same length and size as of that main house structure, which seems impossible in practice, and not worth the investment. On the other hand, to separate a new footing structure from the old one, leaving its movement free and not a burden to the original structure becomes our choice for the betterment.