An installation method of a void deformation monitoring device for face rockfill dams
A face rockfill dam and deformation monitoring technology, applied in the direction of measuring devices, dams, barrages, etc., can solve the problems of steel pipes and internal joint gauges being easily damaged, not suitable for long-term water, steel pipe corrosion and damage, etc., to adapt to deformation The effect of strong ability, good durability and simple installation process
Active Publication Date: 2017-03-22
CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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Problems solved by technology
However, due to the protection of steel pipes, it is only suitable for one-way vertical deformation; in the case of non-horizontal foundations artificially filled in hydropower dams, when non-vertical deformation occurs, the steel pipes and internal joint gauges are easily damaged; at the same time Steel pipes are used for protection, which is not suitable for long-term water conditions; in the hydropower dam filling body, which is located underwater for a long time, the steel pipes are prone to corrosion and damage
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[0026] The technical solution of the present invention is further described below in conjunction with the accompanying drawings, but the scope of protection is not limited to the description.
[0027] Such as figure 1 , figure 2 As shown, a void deformation monitoring device for face rockfill dams according to the present invention includes a cushion 1, a base 2, a joint meter 4 and a wooden cover 6, and the cushion 1 is horizontally arranged on the stack On the stone body 8, the base 2 is arranged on the cushion layer 1, and is fixed by the fixed anchor rod 3, the wooden cover plate 6 is arranged on the bottom surface of the concrete panel 7, one end of the seam gauge 4 is fixed on the base 2, and the other end is fixed on the base 2. One end passes through the wooden cover plate 6 and is fixed to the concrete panel 7 , and the backfill material 5 is also filled between the concrete panels 7 above the cushion layer 1 . In this technical solution, the seam gauge 4 is a comm...
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The invention discloses a concrete faced rock-fill dam void deformation monitoring device and an installation method thereof. The monitoring device comprises a cushion layer, a pedestal, a crack meter and a wood cover plate, the cushion layer is horizontally arranged on a rock-fill body, the pedestal is arranged on the cushion layer and is fixed through a fixing anchor rod, the wood cover plate is arranged on the bottom of a concrete face, one end of the crack meter is fixed on the pedestal, the other end of the crack meter penetrates through the wood cover plate and is fixed on the concrete face, and backfill materials are put between the cushion layer and the concrete face. The installation method comprises steps of (1) excavating a mounting groove; (2) paving the cushion layer; (3) installing the pedestal; (4) installing the crack meter; and (5) installing the wood cover plate. The concrete faced rock-fill dam void deformation monitoring device can monitor void deformation between the concrete face and the rock-fill body effectively in real time in order to obtain effective data for safety evaluation and analysis of the rock-fill dam, the concrete faced rock-fill dam void deformation monitoring device is simple to install, and good in accuracy and durability, and the concrete faced rock-fill dam void deformation monitoring device can be widely used for monitoring void deformation between the concrete face of the concrete faced rock-fill dam and the rock-fill body.
Description
technical field [0001] The invention relates to a void deformation monitoring device and an installation method for face rockfill dams, which belong to the field of safety monitoring of water conservancy and hydropower engineering buildings, and are particularly suitable for void deformation monitoring between face plates and rockfill bodies of face rockfill dams . Background technique [0002] In the concrete face dam project, the face is used as an anti-seepage body, and its deformation and damage are directly related to the safety of the face rockfill dam. Since the panel is seated on the rockfill body, due to the settlement of the rockfill body, there will be a void between the panel and the rockfill body. It is very important for the safety of face dams to carry out real-time and effective monitoring of void conditions. [0003] For example, the Chinese patent with the publication number CN203270628U discloses a device for monitoring the void deformation of the bottom...
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IPC IPC(8): E02B7/06G01B21/32
Inventor 童文辉
Owner CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD