Roadbed for permafrost region

The utility model relates to a roadbed used in permafrost regions, which comprises a roadbed main body, the roadbed main body comprises a heat insulation layer, the heat insulation layer comprises a first foam light soil heat insulation layer and a second foam light soil heat insulation layer, the f...

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Bibliographische Detailangaben
Hauptverfasser:	SHEN ZHONGCHAO, CHEN JUNAN, WU SISI, TANG WENGUANG, LIU WEIDONG, SHEN LI, PENG YONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
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Beschreibung
Zusammenfassung:	The utility model relates to a roadbed used in permafrost regions, which comprises a roadbed main body, the roadbed main body comprises a heat insulation layer, the heat insulation layer comprises a first foam light soil heat insulation layer and a second foam light soil heat insulation layer, the first foam light soil heat insulation layer is arranged below the second foam light soil heat insulation layer, and the second foam light soil heat insulation layer is arranged below the first foam light soil heat insulation layer. The hydration heat of the first foam light soil heat insulation layer is lower than that of the second foam light soil heat insulation layer, a sand cushion layer is arranged on the second foam light soil heat insulation layer, a layer of anti-seepage geotechnical cloth is attached to the lower portion of the first foam light soil heat insulation layer, and the roadbed body is covered with filling soil. The two sides of the roadbed body are provided with a sunny side heat preservation pro