Adding steel ribs to the rail road embankment Paved object: The rail road embankment foundation Features: high strength, low cost, easy to construct, anti-corrosion.
Functions: when the lattice fence is buried in the soil or the other medium, the horizontal ribs (vertical to the direction of the main load) provide series of load points and anchorage points. So the earth stress will be passed to the fence not only by the surface friction but also by the function of gearing or mutual lock between the net holes and the soil.
Paving points: The dug dimension of the bed should be larger than the design requirement, meanwhile make the measures of preventing and discharging the water for the foundation pit. Lay the sand bed course in time after digging.
The surface of underlay should be even, and the contact layer should be fine sand or soft oil without big sharp stone.
The longitude ribs are along the direction of the main load (cross the section of the embankment) and there is no lapped joint in the longitude direction.
The joints in the horizontal direction of the earth lattice fence adopt nylon rope or taches . Fix the paved fence with bending head nail (made of steel bar) every 2 meters.
The paved fence should be covered in time, and the diameter of the covered soil cannot be more than half of the distance between the rolling over layers. |
