EXTRUSION TYPE FROST HEAVE PREVENTING AND HEAT GATHERING SELF-PROTECTIVE DEVICE AND SUBGRADE THEREOF

The invention provides an extrusion type frost heave preventing and heat gathering self-protective device and subgrade thereof, and relates to the technical field of preventing and treating engineering construction diseases in a seasonally frozen soil region. In the device, the solar heat absorber,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JIN, MINGYANG, ZHANG, WENQIANG, YU, QIHAO
Format: Patent
Sprache:eng ; fre
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Beschreibung
Zusammenfassung:The invention provides an extrusion type frost heave preventing and heat gathering self-protective device and subgrade thereof, and relates to the technical field of preventing and treating engineering construction diseases in a seasonally frozen soil region. In the device, the solar heat absorber, the heat gathering tube and the circulating pump are connected from head to tail sequentially through the circulating tube to form a circulating loop where a circulating working medium is filled, and the heat gathering tube is used to be inserted a subgrade; in the solar heat absorber, both ends of the row tubes are in communication with the upper collecting tube and the lower collecting tube, the squeezing plugs are removable inside the row tubes, the circulating pump is configured to push the circulating working medium to flow in a direction from the lower collecting tube to the upper collecting tube, and when the circulating pump stops working, the squeezing plugs press the circulating working medium in the row tubes into the lower collecting tube under action of gravity. The device and subgrade can realize balanced and flat heating of the subgrade, thereby effectively avoiding generation of engineering diseases such as frost heave and uneven fluctuation of the subgrade in the seasonally frozen soil region, and also avoiding influence on stability and sealing performance of the device when the circulating working medium reaches a boiling point in Summers by controlling positions of the circulating working medium. La présente invention concerne un dispositif dautoprotection permettant de prévenir le soulèvement par le gel de type par extrusion et daccumuler la chaleur et concerne également un sol de fondation connexe. Linvention a pour but de traiter les maladies de génie et de construction dans une région où le sol gèle de façon saisonnière. Dans le dispositif, labsorbeur de chaleur solaire, le tube daccumulation de chaleur et la pompe de circulation sont branchés de lavant à larrière, en séquence, dans le tube de circulation pour former une boucle de circulation, qui est remplie dun milieu de travail de circulation. La pompe de circulation est configurée pour entraîner la circulation du milieu dans un sens dun tube de collecte inférieur à un tube de collecte supérieur, des bouchons de pression pressant le milieu dans des tubes en rangée dans le tube de collecte inférieur, par gravité. Le dispositif et le sol de fondation peuvent produire un chauffage équilib