Rock mass fracture occurrence recognizing system in oscillation testing system

A technique for vibration testing and rock mass fissures, applied in measuring devices, analysis of suspensions and porous materials, scientific instruments, etc. Difficulty and other issues

Inactive Publication Date: 2012-12-19
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are large errors in the determination of the geometric characteristics of fractures in boreholes, and the determination is difficult, which greatly reduces the reliability of the calculated anisotropic fractured rock permeability coefficient tensor

Method used

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  • Rock mass fracture occurrence recognizing system in oscillation testing system
  • Rock mass fracture occurrence recognizing system in oscillation testing system
  • Rock mass fracture occurrence recognizing system in oscillation testing system

Examples

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Embodiment

[0025] Such as figure 1 The rock mass fissure occurrence recognition system in the vibration test system shown includes: downhole borehole image recognition and orientation system 1, cable counting drawworks system 2 and PDA data acquisition system 3; the downhole borehole image recognition and orientation system 1. The cable counting winch system is respectively connected with the corresponding PDA data acquisition system; the downhole borehole image recognition orientation system 1 finds the crack 4 in the borehole and can determine the orientation of the crack, and transmits the orientation data of the crack to the PDA data In the acquisition system; the cable counting winch system 2 provides the position depth data of the crack for calculating the crack occurrence, and transmits the position depth data of the crack to the PDA data acquisition system; the PDA data acquisition system 3 calculates the crack occurrence , to quickly and accurately provide basic geological infor...

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Abstract

The invention discloses a rock mass fracture occurrence recognizing system in an oscillation testing system. The rock mass fracture occurrence recognizing system comprises an underground drilling image recognition orientating system, a cable counting winch system and a PDA (personal digital assistant) data acquisition system, wherein output ends / input ends of the underground drilling image recognition orientating system and the cable counting winch system are respectively connected with the input end / output end of the PDA data acquisition system correspondingly. With the adoption of the system, fracture images and position and depth data can be obtained through the underground drilling image recognition orientating system and the cable counting winch system, thereby the fracture occurrence of fractured rock mass is obtained, and reliable basic geologic information is provided for determining permeability coefficient tensors for having oscillation tests in the fractured rock mass.

Description

technical field [0001] The invention relates to an oscillation test system in the field of hydrogeology, in particular to an identification system for identifying the occurrence of rock mass fissures. Background technique [0002] The permeability of rock mass is an important issue involved in many engineering constructions and scientific research in disciplines, especially the permeability of heterogeneous anisotropic fractured rock mass is an important issue in the design, construction and operation of dam foundations, slopes, tunnels and other projects. important parameters that must be mastered. At the same time, to study the interaction of engineering structures, foundations and groundwater, as well as the coupling effects of stress field, temperature field, seepage field and chemical field, it is also necessary to quantitatively determine the permeability of rock mass. [0003] In order to accurately determine the permeability coefficient tensor of anisotropic fractur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
Inventor 周志芳王锦国黄勇赵燕容吴蓉田胜窦智戴云峰
Owner HOHAI UNIV
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