Static leveling device and system

Abstract

The invention provides a static leveling device and a system. The static leveling device comprises a leveling box, a floating barrel and a vibratory string force transducer. The static leveling system comprises a reference level box disposed at the reference level point, one or more working level boxes disposed at the working level point, a water inlet tank, a water outlet tank, a water separator and a total air-flow pipe. By the above device and system, synchronous automatic measuring of all working level points can be realized, thus effectively eliminating artificial intervention factors in the static leveling result, greatly raising measuring precision and substantially minimizing artificial labor intensity.

Description

technical field [0001] The invention relates to the detection technical fields of civil engineering, water conservancy engineering, etc., in particular to a static level measuring device and system. Background technique [0002] The foundation will settle under the load of the building structure. If the settlement of the foundation is very different, or even exceeds the allowable range of the building structure, it will affect the normal use of the building structure, and even lead to the subsidence of the roadbed, the collapse of the embankment, the cracking and tilting of the building structure, and even collapse. . For some building foundations located on rigid bedrock, due to certain design purposes, the settlement deformation measurement of the foundation must also be carried out. For example, in the nuclear island containment foundation of a nuclear power plant, a certain number of settlement observation and measurement points are generally set up. Through the above s...

AI Technical Summary

Problems solved by technology

[0012] It can be seen from this that the above-mentioned static leveling system in the prior art needs to be manually operated during the measurement process, and the water level of each level box needs to be adjusted manually through the continuous water injection or discharge of the plunger pump, and each The pressure platform or each measurement and reading cycle must be repeatedly measured for each working level point through multiple steps such as water injection, fine-tuning, measurement and reading, and water discharge. The operation process is complicated and cumbersome; The judgment experience has a greater impact on the measurement results, which makes the measurement results contain more manual intervention factors, and the system test error is larger.

In addition, because the test process of the above-mentioned static leveling system is based on the continuous adjustment of the water level manually, and each working level point can only be used in series with the reference level point alone, the system test takes a long time; the system test accuracy Restricted by various factors such as the measurement and reading time point of the pressure platform and the measurement and reading sequence of each working point, the measurement accuracy of the measurement device is also low. The measurement accuracy is lower than that of the measuring device

In addition, since the above-mentioned static leveling system requires manual intervention during the test process, each working level point can only be measured separately, so the entire measurement system cannot realize automatic measurement

Furthermore, the test range of the above-mentioned static leveling system is relatively narrow, the effective range is ±40mm, and the system data analysis and processing process is also relatively cumbersome. When the reading is within a small range (0 ~ ±25mm), the sensor output is basically a linear response; When the reading is in a relatively large range (±25~40mm), the sensor output is a nonlinear response, and the interpolation method must be used to calculate

[0013] In summary, the static leveling system in the prior art has many shortcomings such as large manual intervention, low test accuracy, poor reproducibility and stability, long test cycle, and inability to realize automatic measurement. Engineering measurement brings a lot of inconvenience

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