Integral-type settlement plate installation device of soil mass layered settlement monitoring equipment

Abstract

The invention discloses an integral-type settlement plate installation device of soil mass layered settlement monitoring equipment. The integral-type settlement plate installation device of the soil mass layered settlement monitoring equipment comprises a guide pipe (1) and a plurality of settlement plates (2), wherein a bearing supporting plate (3) is arranged on each settlement plate (2), a guide hole (4) is formed in each bearing supporting plate (3), a plug pin (5) is arranged inside each guide hole (4) in a sliding matched mode, and the length of each plug pin (5) is smaller than the depth of each guide hole (4). An air bag (6) is fixed on the outer wall of the guide pipe (1), a plurality of layers of jacking rods (8) are fixed on the air bag (6), the jacking rods (8) are as high as the bearing supporting plates (3) one to one, a plurality of passing holes (11) are formed in an outer sleeve barrel (9), and the outer end of each jacking rod (8) of each layer penetrates each passing hole (11) of the outer sleeve barrel (9), and is inserted into the inner end of the guide hole (4) of the bearing supporting plate (3) of the same height. The integral-type settlement plate installation device of the soil mass layered settlement monitoring equipment enables the settlement plates (2) to be accurately, conveniently and reliably installed on the hole wall of a measuring hole.

Description

Technical field [0001] The invention relates to the field of soil settlement measurement, in particular to an integral settlement board installation device for soil layered settlement monitoring equipment. Background technique [0002] When working in soil, especially soft soil, such as pile sinking and digging foundation pits, it is easy to cause the soil around the work area to settle. When the soil is settling, the displacement of the soil settlement at different depths is different, that is, the soil settlement is layered. For engineering safety monitoring considerations, to monitor soils of different depths, it is necessary to monitor the layered settlement of the soils. [0003] The soil layered settlement monitoring equipment includes multiple horizontal settlement plates, a guide tube and a probe. Each settlement plate is provided with a central hole. The probe is fixed with a tape measure, and the probe is connected with an alarm device (such as a light bulb) People dig ...

AI Technical Summary

Problems solved by technology

[0005] The settling plate installation device of the prior art soil layered settlement monitoring equipment has the following defects: First, the process of using this device to fix the settling plate on the measuring hole is very inaccurate, because the settling plate relies on a rope slipknot, so that the claws of the shrapnel Under the action of its own elasticity, it is difficult to avoid the pulling force on the rope during the process of pulling the rope to loosen the slipknot under the action of its own elastic force. This pulling force may destroy the stress stability of the shrapnel claw, making the deflection of the shrapnel claw unable to level, or making the The shrapnel claws move up and down, causing the initial installation position of the shrapnel claws to deviate from the design requirements. Moreover, after the slipknot is loosened and the process before the shrapnel claws are inserted into the hole wall, the settling plate is no longer fixed to the guide tube, and the settling plate is under the action of gravity. The bottom will fall, and the falling process will not end until the shrapnel claws are stretched and inserted into the hole wall. The falling displacement also makes the initial installation position of the settling plate deviate from the design requirements; moreover, the working stability of the device is poor, because the device uses a rope Pull the slipknot from top to bottom to realize the installation of the sinking plate. Once a slipknot at the middle end of the rope is accidentally stuck, the slipknot and all the slipknots below the slipknot cannot be untied normally. It will not be able to complete the fixation with the hole wall; also because the outer tip of the L-shaped spring piece of the shrapnel claw is inserted into the soil quickly by virtue of the elastic force, and the soil is soft, the quick insertion of the outer tip may knock the soil out of a size greater than The pit with the outer tip makes the fixing between the outer tip of the L-shaped spring leaf and the soil unstable, which eventually causes the settlement plate to shake up and down, affecting the measurement results

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