Equivalent drilling cuttings weight continuous monitoring device and method

A monitoring device and cuttings volume technology, applied in mining equipment, earthwork drilling, hydraulic/pneumatic metering, etc., can solve problems such as omission of useful information, operational errors, and inaccuracy
CN101963071AActive Publication Date: 2011-02-02北京安科兴业科技股份有限公司
2 Cites 12 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
北京安科兴业科技股份有限公司
Publication Date
2011-02-02

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention relates to the field of the monitoring and prewarning of mine power disasters, in particular to an equivalent drilling cuttings weight monitoring device and an equivalent drilling cuttings weight monitoring method. The method comprises the following steps of: determining the relations among bearing pressure distribution, drilling cuttings weight and drilling stress by using a mine pressure theory, on-site actual measurement and laboratory experiment data; determining a key threshold value among the parameters during rock burst; and prewarning before the rock burst. The monitoring device comprises a pressure monitoring device, an instrument and a transmission line, wherein the pressure monitoring device is embedded into an excavation area; and the instrument and the transmission line are used for transmitting monitored data to the ground. A ground monitoring main machine is used for continuously monitoring the change situation of under-well pressure, so that the rock burst can be prewarned according to the key threshold value. In the device and the method, the defects of dangerous drilling cuttings method and incontinuous monitoring in real time are overcome and the safety and effectiveness of rock burst monitoring are improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a continuous monitoring method and device for the amount of equivalent drilling cuttings, which are used for monitoring and early warning of rock burst in coal mines. Background technique

[0002] In the field of monitoring and early warning of rock burst, the on-the-spot forecast at home and abroad is mainly based on the cuttings method, but the early warning indicators used by various mines are different. The cuttings method is a comprehensive index including mining stress, coal body properties, outburst environment, etc., which is more practical and reliable. In addition, there are electromagnetic radiation monitoring method and microseismic detection method. The electromagnetic radiation monitoring method is an auxiliary method, which is greatly affected by the complexity of groundwater, structure, and electromagnetic environment; the microseismic monitoring method is a long-term and macroscopic monitoring method, which ha...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More