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An integrated monitoring device and measurement method for seepage pressure and settlement in soft soil foundation

A monitoring device and technology for soft soil foundations, applied in the field of safety monitoring of seepage pressure and settlement, can solve the problems of bending deformation of side bars of settlement plates, breaking of piezometer cables, and inability to replace them, so as to reduce the hysteresis problem and solve the Settlement error, easy and fast operation effect

Active Publication Date: 2020-12-11
浙江广川工程咨询有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the monitoring methods of seepage pressure and settlement are often independent, and the following problems often occur in soft soil foundations: 1) The lateral deformation of the foundation leads to the bending and deformation of the side bars of the settlement plate, and the settlement measurement is inaccurate; Foundation settlement leads to inaccurate measurement of water level and seepage pressure; 3) The piezometer is damaged and cannot be replaced; 4) The foundation settlement is too large, and the piezometer cable is broken, etc.

Method used

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  • An integrated monitoring device and measurement method for seepage pressure and settlement in soft soil foundation

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Effect test

Embodiment 1

[0024] Combine below figure 1 For further explanation, an integrated monitoring device for seepage pressure and settlement in soft ground, including a measuring tube, the measuring tube is divided into a measuring tube permeable tube 2 and a measuring tube aqueduct 1, a measuring tube permeable tube 2 and a measuring tube aqueduct 1 is provided with a settlement bottom plate 3, the bottom of the measuring tube permeable tube 2 is sealed, and a protective tube is provided outside the measuring tube. The protective tube includes a protective tube movable tube 4 and a protective tube fixed tube 5. Above, a piezometer 6 is installed in the permeable pipe 2, and a cable 7 is connected to one end of the piezometer 6. The permeable pipe 2 of the measuring tube is provided with a number of openings, and the area of ​​the openings accounts for 10% to 20% of the surface area of ​​the permeable pipe of the measuring tube; it can ensure that the water flows out, but it is not too fast to ...

Embodiment 2

[0026] A measurement method using an integrated monitoring device for seepage pressure and settlement in soft ground, comprising the following steps

[0027] a. Bury the monitoring device at the designed position, fill the aqueduct of the measuring tube with water until it is flush with the mouth of the tube, and use the piezometer to measure the water pressure to convert the vertical distance from the nozzle of the aqueduct section of the measuring tube to the subsidence floor, the first time The measurement is taken as the initial value H0, and the subsequent measurement is taken as the measured value H1;

[0028] b. Use a level to measure the elevation of the mouth of the aqueduct section of the measuring pipe. The first measurement is taken as the initial value h0, and the subsequent measurement is taken as the measured value h1. The elevation of the subsidence floor can be converted, and the difference from the initial value is the foundation settlement. value.

[0029] ...

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Abstract

The invention relates to a safe monitoring technology for osmotic pressure and sedimentation, in particular to an integrated observing device for monitoring osmotic pressure and sedimentation in a soft soil foundation and a measuring method. The integrated monitoring device for osmotic pressure and sedimentation in the soft soil foundation comprises a measuring pipe, the measuring pipe comprises ameasuring-pipe water permeating pipe and a measuring-pipe water guiding pipe, and a sedimentation bottom plate is arranged between the measuring-pipe water permeating pipe and the measuring-pipe water guiding pipe. The bottom of the measuring-pipe water permeating pipe is sealed, a protecting pipe is arranged outside the measuring pipe and comprises a protecting-pipe movable pipe and a protecting-pipe fixed pipe, and the protecting-pipe movable pipe is mounted on the sedimentation bottom plate. An osmometer is arranged in the measuring-pipe water permeating pipe, and one end of the osmometeris connected with a cable. According to the integrated observing device for monitoring osmotic pressure and sedimentation in the soft soil foundation and the measuring method, the structure is simple,and operation is convenient.

Description

technical field [0001] The invention relates to the safety monitoring technology of seepage pressure and settlement, in particular to an integrated observation device and measurement method for monitoring seepage pressure and settlement in soft ground. Background technique [0002] In the soft soil foundation, due to engineering geological conditions, boundary conditions, and filling and excavation conditions, etc., the soft soil foundation treatment process and later operation will cause soil settlement, lateral deformation and changes in groundwater level. These changes have great impact on the project. itself and the surrounding buildings, pipelines and roads have more or less impacts. Therefore, in order to ensure the smooth progress of the project and ensure the quality of the project, safety monitoring must be carried out during the foundation treatment process. At this stage, the monitoring methods of seepage pressure and settlement are often independent, and the fol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C5/00G01L11/00
CPCG01C5/00G01L11/00
Inventor 许孝臣高尚戴春华许小杰郑淇文来晟李洪强黄阳杰
Owner 浙江广川工程咨询有限公司
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