CN103486977B - Large-section underground country rock convergence method for fast measuring - Google Patents

Abstract

The invention discloses a kind of large-section underground country rock convergence method for fast measuring, use laser range finder that the convergence of underground coal mine chamber of large cross section country rock is carried out rapid scan, solve the surface convergence rapid scan problem of underground coal mine chamber of large cross section country rock.Without wiring, a people can complete task, have feature fast, easily, solves the surface convergence rapid scan problem of underground coal mine chamber of large cross section country rock.

Description

Large-section underground country rock convergence method for fast measuring

Technical field

The present invention relates to a kind of large-section underground country rock convergence method for fast measuring.

Background technology

Tunnel surrounding areal deformation monitoring technology has been achieved with automatic on-line monitoring or survey engineering Car multiple spot, tunneling boring monitoring technology, certainty of measurement is high, and monitored density is big；And colliery big cross section Chamber is low to deformation monitoring permissible accuracy, it is not necessary that use the height of tunnel wall rock deformation monitoring Precision, high cost technology for deformation monitoring.

Cloth arranged in colliery existing large-section underground Convergence monitoring many employings right-angled intersection method or well word Line method is observed, and needs ladder or scaffold, and survey tool is steel ruler, and observation is extremely every time Need two people to coordinate less, waste time and energy and observation effect is poor.

Therefore, prior art existing defects, need to improve.

Summary of the invention

The technical problem to be solved is to provide a kind of big for the deficiencies in the prior art Section underground country rock convergence method for fast measuring.

Technical scheme is as follows:

A kind of large-section underground country rock convergence method for fast measuring, comprises the following steps:

(1) measurement apparatus of a band certain angle, measurement apparatus are installed in Dong Bi side, lane Including fixed pedestal and support；Support is α with the angle of horizontal direction_i, support is A_i；

(2) fixed pedestal and support are fixedly mounted on chamber one side surface；

(3) laser range finder being placed on horizontal direction angle is α₁、α₂、α₃、α₄ And α₅Support on, recording support free end to the distance of lane, opposite cave is A_iB_i；

(4) A is calculated_iC_i=A_iB_i*cos(α_i), B_iC_i=A_iB_i*sin(α_i), the most adjacent twice The convergency value of monitoring is △ BC=B_nC_n-B_n-1C_n-1, △ AC=A_nC_n-A_n-1C_n-1；Wherein A_nC_n、B_nC_n It is the chamber width recorded for n-th day and height；Wherein A_n-1C_n-1、B_n-1C_n-1It is to survey for (n-1)th day The chamber width obtained and height；

(5) through repeatedly observing, the deformation amount esox △ BC=B on chamber surface is just drawn_nC_n-B₀C₀, Σ △ AC=A_nC_n-A₀C₀, wherein B₀C₀, A₀C₀For the initial value measured；Chamber considerable convergence speed V High n=(B_nC_n-B_n-1C_n-1)/(d_n-d_n-1), width convergence rate V width n=(A_nC_n-A_n-1C_n-1)/ (d_n-d_n-1)。

The present invention uses laser range finder quickly to see the convergence of underground coal mine chamber of large cross section country rock Survey, solve the surface convergence rapid scan problem of underground coal mine chamber of large cross section country rock.Without wiring, One people can complete task, has feature fast, easily, solves colliery big cross section cave The surface convergence rapid scan problem of room country rock.

Accompanying drawing explanation

Fig. 1 is the inventive method and measurement apparatus structural representation；

Detailed description of the invention

Below in conjunction with specific embodiment, the present invention is described in detail.

(1) measurement apparatus of a band certain angle is installed, such as Fig. 1 institute in Dong Bi side, lane Showing, measurement apparatus includes fixed pedestal 110 and support 111；Support 111 and horizontal direction Angle be α_i, support is A_i；

(2) fixed pedestal 110 and support 111 are fixedly mounted on chamber one side surface；

(3) laser range finder being placed on horizontal direction angle is α₁、α₂、α₃、α₄ And α₅Support on, recording support free end to the distance of lane, opposite cave is A_iB_i；

(4) A is calculated_iC_i=A_iB_i*cos(α_i), B_iC_i=A_iB_i*sin(α_i), adjacent twice prison The convergency value surveyed is △ BC=B_nC_n-B_n-1C_n-1(highly), △ AC=A_nC_n-A_n-1C_n-1(width).

Wherein A_nC_n、B_nC_nIt is the chamber width recorded for n-th day and height；Wherein A_n-1C_n-1、B_n-1C_n-1 It is the chamber width that records for (n-1)th day and height is the chamber width and height recorded for (n-1)th day Degree；

(5) so through repeatedly observing, deformation amount esox △ on chamber surface can just be drawn BC=B_nC_n-B₀C₀, Σ △ AC=A_nC_n-A₀C₀, wherein B₀C₀, A₀C₀For the initial value measured.

Chamber considerable convergence speed V height n=(B_nC_n-B_n-1C_n-1)/(d_n-d_n-1), width convergence speed Degree V width n=(A_nC_n-A_n-1C_n-1)/(d_n-d_n-1)。

It should be appreciated that for those of ordinary skills, can be according to the above description Improved or converted, and all these modifications and variations all should be belonged to right appended by the present invention and want The protection domain asked.

Claims (1)

1. a large-section underground country rock convergence method for fast measuring, it is characterised in that include Following steps:

(1) measurement apparatus of a band certain angle, measurement apparatus are installed in Dong Bi side, lane Including fixed pedestal and support；Support is α with the angle of horizontal direction_i, support is A_i；

(2) fixed pedestal and support are fixedly mounted on chamber one side surface；

(3) laser range finder being placed on horizontal direction angle is α₁、α₂、α₃、α₄ And α₅Support on, recording support free end to the distance of lane, opposite cave is A_iB_i；

(4) A is calculated_iC_i=A_iB_i*cos(α_i), B_iC_i=A_iB_i*sin(α_i), the most adjacent twice The convergency value of monitoring is △ BC=B_nC_n-B_n-1C_n-1, △ AC=A_nC_n-A_n-1C_n-1；Wherein A_nC_n、B_nC_n It is the chamber width recorded for n-th day and height；Wherein A_n-1C_n-1、B_n-1C_n-1It is to survey for (n-1)th day The chamber width obtained and height；

(5) through repeatedly observing, the deformation amount esox △ BC=B on chamber surface is just drawn_nC_n-B₀C₀, Σ △ AC=A_nC_n-A₀C₀, wherein B₀C₀, A₀C₀For the initial value measured；Chamber considerable convergence speed V High n=(B_nC_n-B_n-1C_n-1)/(d_n-d_n-1), width convergence rate V width n=(A_nC_n-A_n-1C_n-1)/ (d_n-d_n-1)。