Monitoring system for settlement deformation of drill hole and monitoring method

A deformation monitoring and drilling technology, applied in the direction of hydrostatic pressure, etc., to achieve the effect of easy implementation, low cost, stable and reliable measurement data

Pending Publication Date: 2018-02-23
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

[0003] At present, there are various methods for monitoring the displacement inside t

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  • Monitoring system for settlement deformation of drill hole and monitoring method
  • Monitoring system for settlement deformation of drill hole and monitoring method
  • Monitoring system for settlement deformation of drill hole and monitoring method

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[0033] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention will be defined more clearly.

[0034] Such as Figure 1-2 As shown, the embodiment of the drilling settlement deformation monitoring system of the present invention includes a liquid pipe 2 installed in the rock borehole 1, and the outer end of the liquid pipe 2 is connected with a liquid reservoir 9 which requires the liquid reservoir 9 The position is higher than that of the borehole 1 to ensure that there is a stable pressure in the liquid pipe 2, and the deformation of the borehole can be intuitively felt according to the change of the liquid level 10; in the embodiment, a reference point 3 is provided in the outer section of the liquid pipe 2 hole. The first to third mea...

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Abstract

The invention discloses a monitoring system for settlement deformation of a drill hole and a monitoring method. The monitoring system comprises a liquid pipeline arranged in a horizontal drill hole ofa rock mass, and the outer end of the hole of the liquid pipeline is connected with a liquid reservoir; a reference point serving as a datum point is arranged at a relatively non-deformed point at the bottom of the drill hole or on the exterior of the drill hole, and a plurality of measuring points are distributed in the drill hole; both the datum point and the measuring points are provided withmicro-pressure sensors; the signal output ends of all micro-pressure sensors are electrically connected on corresponding ports of a hole external pressure sensor data acquisition instrument through lead wires. After the drill hole is deformed, the liquid level difference between the liquid pipeline and the liquid reservoir is changed, the pressure generated by the liquid level difference directlyacts on the micro-pressure sensors, and the settling volume of each measuring point is obtained by virtue of pressure values before and after degeneration of the drill hole. The monitoring system andthe monitoring method disclosed by the invention has the advantages of wide adaptability, simple structure, convenient implementation, low cost and stable and reliable measured data, and provides a way for deformation monitoring of geotechnical engineering.

Description

technical field [0001] The invention relates to deformation and stability monitoring technology of tunnels, side slopes and underground engineering rock mass in transportation, water conservancy and hydropower, mines and urban construction. Background technique [0002] The stability of rock mass is the main problem of geotechnical engineering, mining engineering, slope engineering and underground engineering. By monitoring the deformation law and dynamics inside the rock mass, it is of great significance for judging the stability of the rock mass, predicting dangerous situations, and preventing them before they happen. [0003] At present, there are many methods for monitoring the displacement inside the rock mass, but the application of each method is subject to different restrictions. Therefore, it is very necessary to continuously research and develop different monitoring methods for internal deformation of rock mass to adapt to different engineering conditions. [000...

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Application Information

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IPC IPC(8): G01C5/04
CPCG01C5/04
Inventor 崔爽尤志珑
Owner SHANDONG UNIV OF SCI & TECH
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