Buoy displacement meter type roadbed differential settlement tester

A technology of differential settlement and displacement meter, which is applied in the directions of instruments, measuring devices, surveying and navigation, etc., can solve the problems of time-consuming and laborious, and achieve the effect of high precision and simple testing.

Inactive Publication Date: 2012-06-27
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

When the differential settlement part is perpendicular to the center line of the subgrade, it can only be observed by embedding multiple set

Method used

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  • Buoy displacement meter type roadbed differential settlement tester
  • Buoy displacement meter type roadbed differential settlement tester

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0011] See figure 1 , Buoy displacement gauge type subgrade differential settlement tester, consists of two parts: differential settlement observation horizontal pipe and buoy displacement gauge deformation test system. The differential settlement observation horizontal pipe is made up of rectangular plastic top plate frame 1 and rectangular geotextile bottom plate 2 cementing to form a sealed space Cavity; The structure of the buoy displacement meter deformation test system is filled with half-full liquid 3 in the differential settlement observation horizontal tube. There are three buoy plates 5 in the differential settlement observation horizontal tube and the control buoy range corresponding to each buoy plate 5 The buoy range control line 4, the three buoy plates 5 are arranged in a straight line, each buoy plate 5 is connected with a displacement meter 6,...

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Abstract

The invention discloses a buoy displacement meter type roadbed differential settlement tester which consists of a differential settlement observing horizontal tube and a buoy displacement meter deformation test system, wherein in the differential settlement observing horizontal tube, a top plate frame and a geotextile bottom plate form a sealed cavity; and the buoy displacement meter deformation test system has a structure as follows: the differential settlement observing horizontal tube is half-filled with a liquid (3), and internally provided multiple buoy plates (5) and buoy range control lines (4) for controlling the buoy range and corresponding to the buoy plates (5); each buoy plate (5) is connected with a displacement meter (6); and each displacement meter (6) is electrically connected with a displacement observer (8) through a wire (7). By adopting the buoy displacement meter type roadbed differential settlement tester disclosed by the invention to perform differential settlement observation at the roadbed filling and excavating junction, the half-filling and half-excavating part and other parts, inconvenience in embedding multiple settlement plates is avoided, and the test is easier and more precise than the test by adopting the settlement plates.

Description

Technical field [0001] The invention relates to a deformation observation device for highway soft soil roadbeds, in particular to a buoy displacement meter type roadbed differential settlement tester. Background technique [0002] Mountain highway roadbeds often have large differential settlements at the fill-excavation junction and half-fill and semi-excavated sections. To observe the deformation of parts with large differences between fill and excavation, buried settlement plates and horizontal settlement pipes are often used for observation. When the differential settlement position is perpendicular to the center line of the subgrade, only multiple settlement slabs can be buried for observation, and the buried settlement slab must be taken over for each filling and compaction layer, which is time-consuming and laborious. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a buoy displacement meter type roadbed differential...

Claims

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Application Information

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IPC IPC(8): G01C5/00G01C5/04
Inventor 张玉萍刘龙武
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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