Hainan EPS

Eps foam is a kind of light polymer. It uses polystyrene resin to add foaming agent, and at the same time, it is heated to soften to produce gas, forming a rigid closed cell structure of foam plastic.

Because the bubbles on the inner wall of eps foam are closed and not connected with each other, the water absorption rate is small, and the frost resistance is good, which ensures that the eps foam still has good thermal insulation performance under water immersion conditions. The 6cm thick EPS insulation layer can reduce the heat flow from the surface to the deep layer, reduce the downward movement of the upper limit of the underground permafrost layer, slow down the freezing and thawing of the permafrost layer, maintain the stability of the line structure and reduce deformation. The research results have been popularized and applied in Chuma River Approach, Hongliang River Bridge Approach and Old Hot Spring Area. From the current situation of the project, the pavement is solid and smooth, the subgrade is stable, and the overall strength of the subgrade and pavement meets the design requirements.

When embankment is built on soft soil foundation, due to the high density of ordinary fillers, the additional stress of the foundation caused by their own weight is large, which often causes excessive uneven settlement and settlement of the subgrade. Due to its low density and super lightweight characteristics, EPS can effectively reduce the dead weight of the embankment, reduce the additional stress of the foundation, reduce the settlement of the embankment in soft soil foundation, and improve the stability of the foundation after a certain depth of replacement. Filling 10 m high EPS embankment is about equal to the load of 10 cm high low fill embankment, and the embankment load is greatly reduced. Therefore, building EPS embankment in slope section can effectively prevent landslide and improve the anti sliding stability of high embankment.

EPS foam construction does not need special machinery, but can be carried out by manpower. It is fast and suitable for emergency rescue and disaster relief. It is more suitable for places where large machinery is difficult to use. It can be processed and cut on site to meet the requirements of site topography.