Visual measurement device for underground water level under negative pressure condition and measurement method

A groundwater level and measuring device technology, applied in the direction of buoy liquid level indicator, etc., can solve problems such as inability to apply, unsuitable for real-time measurement, lack of airtightness, etc., achieve precise reinforcement effect and engineering progress, overcome leaking vacuum pressure, avoid Errors and cumbersome effects
CN104316144AActive Publication Date: 2015-01-28HOHAI UNIV
6 Cites 12 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HOHAI UNIV
Publication Date
2015-01-28

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention discloses a visual measurement device for an underground water level under a negative pressure condition. The device comprises a permeable pipe, a floating block, pulleys, a high-definition camera with a light source, a wire, a fixed wire connector, an indicator pin, a top cover, a bottom cover, external display equipment and soil engineering filter cloth. The invention discloses a measurement method of the device. The floating block drives the high-definition camera with the light source to freely change the up-down displacement with the float of the underground water level; during each measurement, the external display equipment on the outer side of the permeable pipe is connected with the high-definition camera through the wire, and a scale position indicated by the indicator pin in the pipe is photographed, so that the underground water level under the negative pressure condition can be obtained. The real underground water level under the negative pressure condition can be accurately measured, and the error of the conventional open measurement is avoided; the device has the advantages of simple structure, easiness in manufacturing, low cost, convenience in use and broad application prospect.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a groundwater level testing tool and method, in particular to a visual measuring device and a measuring method for groundwater level under negative pressure conditions. Background technique

[0002] In the field of geotechnical engineering, the measurement of groundwater level is of irreplaceable importance. On the one hand, the change of groundwater level reflects the progress of foundation reinforcement, and on the other hand, it reflects the pros and cons of reinforcement methods. Therefore, the real and accurate groundwater level measurement technology It is particularly important. The test method used in engineering for groundwater level mostly adopts the conventional open-type pipe measuring method, and the measured water level change reflects the average value of the water level drawdown at each point of the water level pipe filter pipe section under the action of atmospheric pressure. For the measurement of the groundw...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More