SU1548435A1 - Method and apparatus for determining the shifting of bulk-filled muck body - Google Patents

Abstract

The invention relates to mining and improves the accuracy and reliability of measuring the displacement of an array (M) of bulk rocks. Drill holes and install in them pressure sensitive to changes in pressure M and angle of curvature, which are placed in a rubber pneumatic hose at a distance of 1.0-1.5 m from one another. The annular space between the hose and the well is filled with quartz sand and a binder component with the possibility of forming a consolidated cylinder (C). The displacement M is determined by the magnitude and direction of the pressure M on C, which is measured and recorded simultaneously. The pressure is determined in the horizontal plane every 90 °. A device for carrying out the method includes a rubber pneumatic hose 2, in which reper points are placed along the height of the well. Each frame is made as a composite in the form of a liquid deformer with four measuring C 3 and camera 5 and a liquid inclinometer (I) 7 with a housing in the form of an ellipsoid of rotation. On the inner walls of And 7, measuring electrodes 8 are placed. With chamber 5 Z 3, they are connected by capillary tubes and are located in two mutually perpendicular planes. A consolidated C 1 is placed between the hose 2 and the walls of the well. When M is displaced, the walls of chamber 5 are compressed and C 1 is curved. The magnitude of the displacement and curvature is determined by the change in the level of the electrically conductive fluid in C 3 and I 7. 2 s.p. f-ly, 1 ill.

Description

rum height of the well placed rappers. Each frame is made as a composite in the form of a liquid deformer with four measuring C 3 and camera 5 and a liquid inclinometer (I) 7 with a housing in the form of an ellipsoid of rotation. Measuring electrodes 9 are placed on the inner walls of AND 7. Capillary tubes and JQ are connected to the chamber 5 C 3.

arranged in two mutually perpendicular planes. A consolidated C 1 is placed between the hose 2 and the walls of the well. When M is displaced, the walls of chamber 5 are compressed and C 1 is curved. The magnitude of the displacement and curvature is determined by the change in the level of the electrically conductive fluid in C 3 and I 7. 2 s.p. f-ly, 1 ill.

The invention relates to mining and is intended to measure the displacement of an array of bulk rocks, preferably an array of bulk dams.

The purpose of the invention is to improve the accuracy and reliability of measuring the displacement of an array.

The drawing shows a device for implementing a method for measuring the displacement of an array of bulk rocks.

The device contains a consolidated cylinder 1 located between the walls of the well and a tubular element made in the form of a pneumatic rubber hose 2. In the hose 2 there are located reper points located along the height of the well, each of which is made composite in the form of a liquid deformometer with four measuring cylinders 3, electrodes 4 and fluid pressure chamber 5. The cylinders 3 are placed in two mutually perpendicular planes and are connected by capillary tubes to the chamber 5, which on the outer side is bounded by a rubber cylinder 6. In addition, the reference frame includes a liquid inclinometer 7 with a body in the form of an ellipsoid of rotation made of insulating material. On the inner walls of the ellipsoid are placed the measuring electrodes 8, which are open in the upper part and collected in a common point 9 in the lower part. All switching wires are brought out through insulator 10, which is pressed into the top cover 11. Lightweight plastic centralizers 12 are installed on the surface of hose 2 along its length, through which hose 2 is installed coaxially in the well ..

The method is as follows.

in a way.

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A hole is drilled in the bulk dam massif at a distance of 2-3 m from each other. In each borehole in the rubber pneumatic hose 2 at a distance of 1.0-1.5 m from each other, repers are established that are sensitive to changes in the value of the mass of the array and the angle of curvature of the borehole in the form of a deformometer with cylinders 3 and inclinometer 7, whose readings are recorded on the surface . The annular space between the hose 2 and the borehole walls is filled with quartz sand and a binder component with the possibility of forming a consolidated cylinder 1. The pressure of the array, which is transferred to cylinder 1 when it is displaced, is measured and fixed at the reference points in the horizontal plane every 90 ° four measuring cylinders 3.

For example, part of the dam mass (section A), which is subject to movements, transfers the displacement to cylinder 1. Displacement of cylinder 1 acts on chamber 5, the walls of which are compressed within the limits of elastic deformation. The electrically conducting fluid from the chamber 5 is connected by the law of the communicating vessels to the measuring cylinder 3, in which the immersion level of the measuring electrode 4 changes, which leads to unbalance of the measuring bridge (not shown). According to the magnitude of the imbalance, the pressure of the array on the cylinder 1 is judged, and the magnitude of the displacement of the array is determined by an indicator that is placed on the surface (not shown). The magnitude X (mm) of the measured displacement of the array is related to the total resistance R (Ohm) of the measuring electrode according to

Y - flR i

X „,

where lk is the change in resistance

a measuring electrode, caused by a change in the level of a liquid when the array is displaced, Ohm;

1 - the maximum possible offset of the array mm. Simultaneously with the measurement of the pressure per unit area (cylinder part), for example, section A, the direction of action of this pressure is measured and recorded, i.e., the angles at which displacements along the well length are measured. These measurements are carried out by inclinometers 7, which, regardless of the deformers, respond only to a change in their position in space. The initial installation position of the inclinometer 7 is the vertical position, in which its vertical axis coincides with the axis of the well. In the initial position, the gauge pointer (not shown) located on the surface indicates the zero position. When the array, and early and consolidated cylinder 1, is displaced, the entire device is displaced relative to the vertical axis of the well, but the electrically conductive fluid in the inclinometer 7 always retains its horizontal, position. When the inclinometer 7 is tilted, the level of immersion of the pairs of measuring electrodes 8 changes, which causes imbalance of the measuring bridge. The magnitude of the current in the measuring diagonal of the bridge is proportional to the angle of rotation of the inclinometer 7, and hence the angle of curvature of the well.

When the array shifts, the well is bent, and the mean value of the zenith angle B in the well curvature in the interval of angles 0. And, measured by the adjacent inclinometers in subsequent observations, are determined by the formula

and e -1st

0i2

Know the value of the angle 0; , compare the results of the initial and subsequent observations, build a well profile and determine the direction of the displacement of the array.

The application of this technical solution allows to increase the accuracy and reliability of measuring the displacement of masses.

0

five

0

five

0

five

0

Siva due to the rigid connection between the dam mass and the consolidated cylinder, eliminating the displacement of the measuring frames.

Measuring displacements and curvatures of consolidated cylinders in time and space allows you to diagnose the behavior of the dam in the entire volume of the bulk array.

Claims (2)

1.Measures for measuring the displacement of the mass of solid bulk rocks, including drilling wells, installing benchmarks in them, recording their readings and comparing the results of initial and subsequent observations, differing 1 - so that, in order to improve the accuracy and reliability of the measurement, benchmarks are set in each well. sensitive to changes in the pressure value of the array and the angle of curvature of the well, at a distance of 1.0-1.5 m from each other in a rubber pneumatic hose, the annular space between which and the walls of the well is filled with quartz sand and binder component with the possibility of forming a consolidated cylinder, and the displacement of the array is determined by the magnitude and direction of the pressure of the array on the cylinder, which are simultaneously measured and recorded at the locations of the frames, and the pressure of the array is determined in the horizontal plane every 90 °. 2. A device for measuring the displacement of an array of bulk rocks, containing the depth gauges located in the tubular tube. element, different 0 five five in order to increase the accuracy and reliability of the measurement, it is equipped with a consolidated cylinder located between the walls of the well and the tubular element, which is made in the form of a pneumatic rubber hose, and each frame is made in the form of a liquid deformer with four measuring cylinders and a camera, and a liquid inclinometer with a body in the form of an ellipsoid of rotation, on the inner walls of which there are measuring electrodes, while the measuring cylinders are connected to the camera by capillary t logging and placed in two mutually perpendicular planes.