A monitoring method for settlement and deformation of unsaturated soil subgrade of high-speed railway
A deformation monitoring, high-speed railway technology, applied in height/level measurement, measuring device, mapping and navigation, etc., can solve the problems of inability to drain and exhaust, low practicability, affecting the strength of roadbed, etc., to achieve rich functions and easy maintenance or replacement, the effect of high practicability
Active Publication Date: 2022-01-11
SHAANXI RAILWAY INST
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Problems solved by technology
[0005] Aiming at the deficiencies of the prior art, the present invention provides a method for monitoring the settlement and deformation of the unsaturated soil subgrade of high-speed railways, which solves the problem that drainage and exhaust cannot be performed while monitoring, resulting in redundant structures in the subgrade, which affect the strength of the subgrade, and is practical. lower sex problems
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0031] see Figure 1-5 , the embodiment of the present invention provides a technical solution: a high-speed railway unsaturated soil embankment settlement deformation monitoring method, specifically comprising the following steps:
[0032] S1. Laying of pipeline 1: first lay a layer of 15-20cm thick soil layer and compact it, then place pipeline 1 perpendicular to the road on the soil layer, and lay the remaining roadbed;
[0033] S2, sensor setting: install...
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The invention discloses a method for monitoring settlement and deformation of unsaturated soil subgrade of high-speed railway, which specifically includes the following steps: S1, pipeline laying; S2, sensor setting; S3, drainage and exhaust; S4, settlement monitoring; S5, result feedback, step S1 Place a pipe every 5‑7m on the middle subgrade soil layer, the monitoring pipe is fixed inside the pipe through the fixing block, the pressure sensor is fixed inside the plug through the connecting block, and the inner wall of the plug is screwed to the surface of the opening end of the monitoring pipe , The invention relates to the technical field of road subgrade engineering. The method for monitoring settlement deformation of unsaturated soil subgrade of high-speed railway can drain and exhaust while monitoring subgrade settlement deformation. It has more functions, and the plug can be disassembled, which is convenient for maintenance or replacement of pressure sensor. It has high practicability. The processor will send the positioning code to the smart terminal, so that the staff can obtain the location of the subsidence subgrade in time, and deal with it in time, saving investigation time.
Description
technical field [0001] The invention relates to the technical field of road subgrade engineering, in particular to a method for monitoring settlement deformation of unsaturated soil subgrade of high-speed railway. Background technique [0002] The content of the roadbed project is to do a good job in roadbed design, construction, monitoring and maintenance management, etc., to provide roadbed structures that meet various performance requirements for paving and vehicle driving. Roadbed monitoring refers to monitoring roadbeds and slopes during use. Deformation, damage and instability that may occur under the action of load and natural factors. [0003] The subgrade should be monitored during the road construction process, but the existing monitoring method has a single function, which can only monitor whether the subgrade has settled and deformed. For the unsaturated soil subgrade, due to the seepage of water and gas during use, it is necessary The addition of drainage and e...
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IPC IPC(8): G01C5/00
Inventor 庞旭卿王婷茹方筠王铁权原静丁坤
Owner SHAANXI RAILWAY INST