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Motorway soft soil roadbed settlement observation cable device

A technology for soft soil subgrade and settlement observation, which is applied in the directions of measuring devices, height/level measurement, surveying and navigation, etc. It can solve the problems of easy damage of metal measuring rods and interference of embankment construction near the measuring rods, and solve the problems of easy damage, The effect of saving monitoring costs, reducing construction difficulty and workload

Active Publication Date: 2014-01-01
HOHAI UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The observation cable itself is flexible, which effectively solves the problems in the prior art that the metal measuring rod is easily damaged and the embankment construction near the measuring rod interferes with the observation greatly.

Method used

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  • Motorway soft soil roadbed settlement observation cable device
  • Motorway soft soil roadbed settlement observation cable device

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0025] as attached figure 1 And attached figure 2 Shown: the flexible settlement observation device of the highway soft soil foundation, including: 1 settlement plate, 2 flexible observation cable, 3 lubricating protective cover, 4 settlement ruler; The lower end of the flexible observation cable 2 is connected to the settling plate 1; the lubricating protective cover 3 wraps and protects the flexible observation cable 2; Pulley 4-4, pulley orientation device 4-5, hook 4-6, steel strand 4-7 and limit plate 4-8 and other components. Wherein, the inner and outer sides of the support 4-1 are marked with scales for easy observation; the miniature hoist 4-2 and the hook 4-6 are all fixed on the support 4-1. During observation, the other end of the flexible observation cable 2 passes through the pulley 4-4 and is connected to the hook 4-6, and the miniature winch 4-2 is...

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Abstract

The invention relates to a motorway soft soil roadbed settlement observation cable device which mainly comprises a settlement plate, a flexible observation cable, a settlement ruler, a balance level and a leveling rod, wherein the balance level and the leveling rod are used for observation. The settlement plate is connected with the settlement ruler through the flexible observation cable. The balance level is arranged between the settlement ruler and the leveling rod and used for measuring and reading scales on the settlement ruler and calculating the foundation settlement quantity of the position of the settlement plate. The motorway soft soil roadbed settlement observation cable device is simple in structure and convenient to use. The observation cable has the specific flexible character so that a rolling machine can directly roll over the observation cable when an embankment is filled. The problem that a traditional rigid measuring rod observation device is prone to damage in construction is solved. Meanwhile, repeated filling and digging of the road surface near a measuring rod is reduced. The sufficiently-long flexible observation cable can be directly cut out, the part, exposed out of the road surface, of the observation cable is directly coiled in situ, welding is not needed and construction difficulty and work loads are reduced. The motorway soft soil roadbed settlement observation cable device is low in manufacturing cost and capable of obviously saving monitoring cost.

Description

technical field [0001] The invention relates to a measuring device, in particular to a cable device for observing the subsidence of a highway soft soil roadbed. Background technique [0002] In the construction of expressway on soft soil foundation, due to the effect of embankment fill weight, the foundation will be compressed and deformed, which may lead to uplift and instability of the foundation in severe cases. Therefore, the most prominent problem in the construction of expressways on soft soil foundations is the stability and settlement of the subgrade, which affects the construction progress and quality, and the settlement dynamic observation must be carried out during the construction process. At present, there are three main methods for foundation settlement observation: the section settlement tube method, the observation method based on the principle of liquid level difference (hydrostatic pressure difference), and the settlement plate method. [0003] The profile...

Claims

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Application Information

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IPC IPC(8): G01C5/00
CPCG01C5/00
Inventor 王建廉卫平花卉田亚岭
Owner HOHAI UNIV
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