The present invention relates to a soft ground surface subsidence plate Combine underground water gauge, or more specifically, is disposed on a soft ground by using a number that is normally ground water level meter of course, determine the settlement to verify more easily the change in the ground water level than configuration, and it relates to a soft ground surface subsidence underground water gauge plate combined with partial settlement of soft ground can accurately measure the subsidence part in the event.
Soft ground surface subsidence plate according to the present invention for this purpose combined underground water gauge is a measuring rod and attached to the settlement plate and the settlement plate located on the floor of the soft ground, including the measurement rods that descend vertically at the soft ground subsidence installed around jidoe made to the protective tube for preventing the fill layer to be in contact with the measuring rod, said depression plate is formed as a whole plate-like multiple divided into at least two or more independent to have each independently lowered in accordance with the partial subsidence of the soft ground is provided to each of the sink plate portion has the bracket is formed, the protective tube is divided composed of the first and the second housing being configured to enable height adjustment by the mutual screwed, it is within the first housing the first and second guides are and the outer circumferential surface of the second casing and at the same time guiding the measuring rod vertically moving the support rod having a fixed disc so embedded in the soft ground mounting multiple mounting, the lower end of the second casing has a bottom surface doedoe provided with a cover having a plurality of pitched ball, said measuring rod lower portion has a length in the vertical direction is fixed to the bracket formed in each said depression plate, the upper portion and the scale is formed, the grid is out of the fill layer being exposed, the first being the cover for the inner diameter of the first housing and cover on the one casing open upper end, the inner side of the cover there are interposed a filter to block the earth and sand flows, the screw on the lower outer peripheral surface of the first housing is formed, the said screw is formed in the inner peripheral surface of the second housing (31B) it characterized in that the first casing and the second casing is fitted with a height adjustment state by the alignment screw.