The organic litter will help to cushion trampling forces, limit the compactability of soils, release plant nutrients, and reduce the erosie forces of rainfall.
Based on the theory of interaction of fluid-solid, tridimensional FEM model of dam-aircushion-water is introduced.The vibration isolation mechanism and effectiveness of air cushion has been studied.
Beam side form shall be installed after all work inspected and accepted such as beam rebar work, cushion block laying, steel inserts installation, steel doweling and pocket molding bed, etc.
An adornment of penniform bracken plant design is on the ivory liner among cushion for leaning on, linen edge offerred a natural photograph draw a frame round for this design.