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Method and system for monitoring thickness and thickness change of active layer in permafrost region
The invention discloses a method and system for monitoring the thickness and thickness change of an active layer in a permafrost region, and the method comprises the following steps: burying a measuring pipe with two sealed ends and smooth inside and outside underground in a warm season, the burying depth of the lower part of the earth surface is # imgabs0 #, injecting purified water into the measuring pipe, and enabling the purified water to be flush with the earth surface, a buoy is arranged in the measuring tube and floats on the liquid surface, and a vent hole is formed in the top of the measuring tube; when the movable layer is melted to the maximum depth, the buoy height # imgabs 1 # is detected; when the active layer is completely frozen, the buoy height # imgabs2 is detected; by monitoring the height change of the buoy and utilizing the difference value between the highest position # imgabs3 # and the lowest position # imgabs4 # of the buoy in a freezing and thawing cycle period, the thickness # imgabs5 #, namely # imgabs6 # and # imgabs7 # of the active layer is automatically calculated. The measuring method is simple and convenient and high in measuring accuracy.
本发明公布了一种多年冻土区活动层厚度及厚度变化的监测方法和监测系统，活动层厚度监测包括以下步骤：在暖季，将两端封口且内外光滑的测量管埋入地下，地表下部埋深为#imgabs0#，所述测量管内注入纯净水，纯净水高度与地表齐平，测量管内设有浮标漂浮于液面上，所述测量管的顶部设有通气孔；当活动层融化至最大深度时，检测浮标高度#imgabs1#；当活动层完全冻结时，检测浮标高度#imgabs2#；通过监测浮标高度变化，利用一个冻融循环周期内浮标最高位置#imgabs3#和最低位置#imgabs4#的差值，自动计算活动层厚度#imgabs5#为#imgabs6#，其中#imgabs7#。本发明测量方法简便，测量准确度高。
Method and system for monitoring thickness and thickness change of active layer in permafrost region
The invention discloses a method and system for monitoring the thickness and thickness change of an active layer in a permafrost region, and the method comprises the following steps: burying a measuring pipe with two sealed ends and smooth inside and outside underground in a warm season, the burying depth of the lower part of the earth surface is # imgabs0 #, injecting purified water into the measuring pipe, and enabling the purified water to be flush with the earth surface, a buoy is arranged in the measuring tube and floats on the liquid surface, and a vent hole is formed in the top of the measuring tube; when the movable layer is melted to the maximum depth, the buoy height # imgabs 1 # is detected; when the active layer is completely frozen, the buoy height # imgabs2 is detected; by monitoring the height change of the buoy and utilizing the difference value between the highest position # imgabs3 # and the lowest position # imgabs4 # of the buoy in a freezing and thawing cycle period, the thickness # imgabs5 #, namely # imgabs6 # and # imgabs7 # of the active layer is automatically calculated. The measuring method is simple and convenient and high in measuring accuracy.
本发明公布了一种多年冻土区活动层厚度及厚度变化的监测方法和监测系统，活动层厚度监测包括以下步骤：在暖季，将两端封口且内外光滑的测量管埋入地下，地表下部埋深为#imgabs0#，所述测量管内注入纯净水，纯净水高度与地表齐平，测量管内设有浮标漂浮于液面上，所述测量管的顶部设有通气孔；当活动层融化至最大深度时，检测浮标高度#imgabs1#；当活动层完全冻结时，检测浮标高度#imgabs2#；通过监测浮标高度变化，利用一个冻融循环周期内浮标最高位置#imgabs3#和最低位置#imgabs4#的差值，自动计算活动层厚度#imgabs5#为#imgabs6#，其中#imgabs7#。本发明测量方法简便，测量准确度高。
Method and system for monitoring thickness and thickness change of active layer in permafrost region
多年冻土区活动层厚度及厚度变化的监测方法和监测系统
GAO QIANG (author) / FAN CHANGXIN (author) / WEN ZHI (author) / ZHOU ZHIWEI (author) / HAO XIAOYUN (author) / ZHU XIAOFAN (author)
2024-12-24
Patent
Electronic Resource
Chinese
IPC:
G01B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
,
Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen
/
E02D
FOUNDATIONS
,
Gründungen
/
G01F
Messen des Volumens, des Durchflussvolumens, des Massendurchflusses oder des Füllstandes
,
MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL