CN206410673U

CN206410673U - Novel tunnel surface displacement measurement apparatus

Info

Publication number: CN206410673U
Application number: CN201621462422.1U
Authority: CN
Inventors: 邱鹏奇; 王军; 宁建国; 卜滕滕; 徐强; 姜宁
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2016-12-29
Filing date: 2016-12-29
Publication date: 2017-08-15
Anticipated expiration: 2026-12-29

Abstract

Novel tunnel surface displacement measurement apparatus, the device is utilized on similar triangle theory and parallelogram opposite side relation of equality, the fixation graduated scale that lane surface displacement variable quantity is transferred to tunnel portion of side by laser rays.Compared with conventional lane surface displacement measuring method, the utility model Patent design principle is simple；Great simplification is made that in measuring method, it is not necessary to which the assistance of workman operation, digital independent is convenient and swift, and the degree of accuracy is high, it is to avoid the error brought due to artificial hand dipping；Measurement apparatus installation procedure is convenient；Equipment cost is cheap, high practicability.

Description

Novel tunnel surface displacement measurement apparatus

Technical field

The utility model, which is related to, applies a kind of lane surface displacement measurement apparatus under mine.

Background technology

One of important content of roadway support monitoring is exactly the measurement to lane surface displacement, and this is Safety of Coal Mine Production Important guarantee.The detection that the amount of shifting near mainly is helped including the amount of crushing and two of lane surface displacement monitoring.Real-time monitored lane The activity of road country rock surface displacement, it can be found that the exception of underground, ensures the safety in production of coal mine roadway.Now, coal mine roadway Instrument in the monitoring method of surface displacement mainly has two kinds：Use the artificial periodic monitoring of steel tape and wire/wireless sensor Monitoring.The former measurement efficiency is low, and precision is not also high, is vulnerable to the influence of human factor, and is difficult to enter measurement result The automatic transmission of row, processing and comprehensive analysis；The latter is compared with the former, although can monitor the generation of coal mine roadway surface automatically Displacement, but the cost of cable network is higher, and inconvenience installs, follow-up not easy care, flexibility is poor, and wireless network In communication mechanism it is more complicated, easily disturbed by coal mine roadway environment.

Because artificial be periodically monitored to the surface displacement in tunnel lacks with measurement accuracy is not high, measurement difficulty is big etc. Point, and the monitoring of wire/wireless sensor has that cost overhead is big, communication easily by environmental disturbances etc., so how to reduce measurement Instrument cost and monitoring difficulty, raising accuracy of instrument are that those skilled in the art think the problem of solution is without solution always.

The content of the invention

In order to overcome, existing lane surface displacement monitoring instrument cost is high, expense is big, communication is easily manually surveyed by environmental disturbances Tedious process and the big defect of the low error of precision are measured, the utility model uses similar triangle theory and parallel using laser pen Quadrangle opposite side relation of equality provides a kind of new monitoring device, and this is a kind of physical measuring device of low-cost and high-precision, This surface displacement measurement apparatus can reduce monitored by personnel's workload, read convenient and swift, reduction human error.

In order to realize above-mentioned task, the utility model is made up of two parts, and Part I is the laser being connected on anchor pole Emitter, Part II is displacement scale, it is characterised in that：

Described laser beam emitting device is mainly made up of anchor pole clamping ring, laser pen two parts, and anchor pole clamping ring is to swash Light emitting devices is fixed on the critical piece of roadway's sides or top plate, and clamping ring profile is similar to nut collar, and its internal diameter compares anchor Shank diameter is bigger；Laser pen end is connected with anchor pole clamping ring, and laser pen opticpath direction where anchor pole clamping ring with putting down The angle in face is 45 °, and laser beam emitting device is installed on roadway floor 1.5m or so side portion's anchor pole or back On the anchor pole at middle part.

Described displacement scale is a graduated ruler of mark, and range is 2.5m.Respectively there is a circle at graduated scale two ends Aperture is easy to graduated scale being fixed on the rib of tunnel, and installation site is about at roadway floor 1.5m.

Measure roadway's sides surface displacement principle：It is in 45 ° by Laser emission path and tunnel rib angle theta, and level is shone Penetrate on the right side of tunnel on the horizontal displacement graduated scale of rib, AB as shown in Figure 1 is tunnel original width, straight line AD is deformation rear lane Road width, C, E be laser in the cursor on the right side of tunnel on rib, CF is CE projection.

According to similar triangle theory,

Because：△ ABC ∽ △ ADE ∽ △ EFC, θ=45 °,

So：△ EFC are isosceles right triangle, EF=CF

I.e.：By indexs of the CF as monitoring tunnel surface horizontal displacement, it is denoted as。

Roadway roof displacement measuring method principle：It is in 45 ° by Laser emission path and back angle theta, and vertical photograph Penetrate on the right side of tunnel on the vertical displacement graduated scale of rib, AB as shown in Figure 2 is back initial position, line segment AD is top plate Sinking height change value, C, H be laser in the cursor on the right side of tunnel on rib displacement scale, GH is the change registration of cursor, EF is rib change width value on the right side of tunnel.

According to parallelogram end-to-end relation,

AD=CE=FG is obtained,

△ EFH be isosceles right triangle, FE=FH,

FG=FH-HG,

I.e.：Back deflection is the difference of rib displacement and displacement scale registration changing value on the right side of tunnel.

If the amount of crushing is, vertical displacement graduated scale registration changing value is。

Then：

Compared with other lane surface displacement measurement apparatus, the utility model has following advantage：

1st, design principle is simple, by similar triangle theory and parallelogram end-to-end relation, by lane surface displacement Variable quantity is transferred on the graduated ruler of mark, and digital independent is convenient and swift, reduces a series of measurement processes, and the degree of accuracy is high, Avoid due to the error that artificial hand dipping is brought.

2nd, measurement apparatus is simple, and installation procedure is convenient.

3rd, installation cost is cheap, practical.

In a word, the utility model improves tunnel table on the premise of reduction measurement apparatus cost and reduction measurement process The accuracy of planar survey, although see simple in construction on surface, but it solves those skilled in the art and wants to solve without solving Technical problem certainly, thinking is original, workable, with prominent substantive distinguishing features and significant progress.

Brief description of the drawings

Fig. 1 is roadway's sides displacement measurement schematic diagram.

Fig. 2 is roadway roof displacement measuring principle figure.

Fig. 3 is the utility model mounted cast figure.

Fig. 4 is roadway's sides displacement instrument installation site top view.

Fig. 5 is roadway roof displacement instrument installation site front view.

Label is represented respectively in figure：1- anchor pole clamping rings, 2- laser pens, 3- displacement scales, 4- anchor poles, 5- Laser emissions Device, 6- tunnels rib, 7- displacement scales, 8- tunnels, 9- backs.

Embodiment

Installation and measurement process specific to the utility model is described in detail with reference to the accompanying drawings.

The first step：On the anchor pole that laser beam emitting device is installed on to tunnel side rib, at height distance bottom plate 1.5m, adjust Section laser path makes its holding level；Laser beam emitting device is installed on the anchor pole in the middle part of top plate on back, adjusts laser Path makes it be irradiated on the right side of tunnel on rib and with rib in 45 ° of angles.

Second step：Displacement scale is installed on rib on the right side of tunnel, the displacement scale crushed is measured and pacifies vertically Dress, the graduated scale of measurement roadway's sides displacement is horizontally installed on the right side rib at bottom plate 1.5m, at the beginning of laser pen cursor Beginning, position was on the graduation mark of graduated scale 0.

3rd step：The data of periodic logging cursor on the scale, lateral displacement graduated scale is recorded as, vertical displacement quarter Degree chi is recorded as.According to monitoring principle, roadway's sides displacement is, back deflection is。

Claims

1. Novel tunnel surface displacement measurement apparatus, is made up of laser beam emitting device, displacement scale, it is characterized in that, it is described to swash Light emitting devices is mainly made up of anchor pole clamping ring, laser pen two parts, and the anchor pole clamping ring profile is similar to nut collar, Its internal diameter is more bigger than bolt diameter；The laser pen end is connected with the anchor pole clamping ring, and the laser pen opticpath The angle of plane is 45 ° where direction and the anchor pole clamping ring.

2. Novel tunnel surface displacement measurement apparatus according to claim 1, it is characterized in that, institute's displacement scale is one The individual graduated ruler of mark, range is 2.5m.