A lot of people will be curious about those beautiful EPS lines on our house, what is their application principle? Why is it so beautiful? These are all in the heart of doubt, forgive small make up selling imprison son, small make up bring you today is about our hangzhou linan rural eps line why so beautiful, why would be so beautiful, why so many people like, ha ha ha a little narcissism, but these are we prove that, with the strength today hangzhou rural eps line would you explain!
Lay EPS insulation layer to prevent roadbed frostbite
The construction of road in permafrost region will cause the change of local environment, lead to the thawing of permafrost, and cause serious disease or even damage to the road. The traditional methods such as plate, salt injection, soil change and slag laying are not ideal.
Due to the closed air bubbles in the inner wall of EPS material, which are not intercommunicated with each other, the absorption of water is small, and the frost resistance is good, which ensures the good heat insulation performance under the condition of immersion. According to the study of EPS plate thermal insulation roadbed test (1990) in the crossing section of kunlun mountain of qinghai-tibet highway, the 6cm thick EPS thermal insulation layer can reduce the heat flow from the surface to the deep layer, reduce the upper limit of the underground permafrost, slow down the freezing-thawing of the permafrost layer, maintain the stability of the line structure and reduce the deformation. The results of this study have been applied in chuma river approach, hongliang river bridge approach and old hot spring area. From the current engineering situation, the road surface is solid and smooth, the roadbed is stable, and the overall strength of roadbed and road meets the design requirements.
Reduce subgrade settlement, prevent or treat subgrade instability
Because of the high density of the common packing, the additional stress of the foundation caused by its self-weight is large, which often causes the uneven settlement and settlement of the roadbed. Due to the low density of EPS and its super lightweight characteristics, it can effectively reduce the dead weight of embankment, reduce the additional stress of foundation, reduce the settlement of embankment on soft soil foundation and improve the stability of foundation after a certain depth of filling. The construction of EPS embankment with a height of 10m is approximately equivalent to the load of low-filled embankment with a height of 10cm, which greatly reduces the embankment load. Therefore, the construction of EPS embankment in the slope section can effectively prevent landslide and improve the anti-slip stability of high embankment.
EPS construction does not need special machinery, manual construction, fast, suitable for rescue and disaster relief, for large machinery is difficult to use more suitable for the site processing cutting, to adapt to the site terrain requirements. Section K42+650~K42+800 of phase I project of taizhou section of yongtaiwen expressway. In August 1998, too fast filling of soft subgrade caused the subgrade to collapse and 60cm arch on the ground. Due to the urgency of the construction period, the site was limited by the 104 national highway and the outer workshop, so EPS lightweight material was finally selected to fill the embankment, with the thickest part being 6 layers and the thinnest part being 1 layer, with a total consumption of 7295m3. The construction was completed in October of the same year. Since the end of 1998, the asphalt concrete road has been smooth and in good condition.
Prevent the bridge head from jumping and reduce the lateral displacement of the abutment
Due to the particularity of the position of bridge head (abutment and roadbed junction), the construction quality of roadbed filling is difficult to control, and the difference of bridge abutment and embankment structure makes it easy to produce uneven settlement at the bridge head, which has a great impact on road life, traffic comfort and safety. Reducing or controlling differential settlement at bridge head is a difficult problem in building embankment on soft foundation. Because EPS has very light weight, it can be used as filler at the bridge head to reduce the settlement difference effectively. At the same time, the lateral pressure of embankment on abutment can be greatly reduced and the lateral displacement of abutment can be reduced.
After hangzhou eps line manufacturers to your love, we have a more profound understanding and understanding of the application of eps line, hope to help you oh!