Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Weakly cemented soft rock coring device and method

A coring device and weak cementation technology, applied in the field of rock mechanics, can solve problems affecting the accuracy and integrity of rock samples, coring disturbance, etc., and achieve the effect of avoiding multiple disturbance damage, avoiding flying, and high-precision coring

Inactive Publication Date: 2019-12-13
SHANDONG UNIV OF SCI & TECH
View PDF9 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the coring machines now use manual rotation to control the descent of the drill bit, which cannot maintain a constant working speed, which will cause multiple disturbances during the coring process and affect the accuracy and integrity of the rock sample.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Weakly cemented soft rock coring device and method
  • Weakly cemented soft rock coring device and method
  • Weakly cemented soft rock coring device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Combine Figure 1 to Figure 3 As shown, a soft rock coring device and method provided by the present invention are specifically implemented as follows.

[0032] In order to improve the efficiency and integrity of soft rock coring, maintain its original physical and mechanical properties, and provide high-precision soft rock specimens for indoor tests, the present invention provides a weakly cemented soft rock coring device and method.

[0033] Such as figure 1 As shown, a coring device for weakly cemented soft rock includes a top truss 1, a column 5, a height adjustment device 7, a base 6, a hydraulic lifting module 2, a motor module 3, a main shaft 9, a drill bit 8, and a refrigeration and dehumidification system 111 , Dust collection system (vacuum cleaner) 12, flexible transparent cover 16 and rock block fixing device 222. During the coring process, the height adjustment device 7 on the column 5 is used to adjust the height of the coring machine to match the size of the ...

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

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
heightaaaaaaaaaa
Login to View More

Abstract

The invention provides a weakly cemented soft rock coring device and method and belongs to the technical field of rock mechanics. The device comprises a core-drilling machine frame, a hydraulic lifting module, a motor module, a main shaft, a drill bit, a refrigeration and dehumidification system, a dust collection system, a flexible transparent cover and a rock block fixing device; the core-drilling machine frame comprises a top truss, a stand column, a height adjusting device and a base; the hydraulic lifting module comprises an oil injection module, a flow monitoring module and an internal telescopic oil cylinder; the oil cylinder is connected with the top truss and the motor module and is used for controlling the drill bit to ascend and descend at a constant speed; the drill bit is fixed to the main shaft through a top end fixing thread; the motor drives the drill bit to rotate; the flexible transparent cover on a main shaft sleeve is used for isolating an external environment; andthe rock block fixing device on the base can well fix a rock block body, and therefore, the instability of the rock block body in a core-drilling process is prevented. With the weakly cemented soft rock coring device and method of the invention adopted, high-precision core drilling of various soft rocks can be realized, secondary damage to a test piece caused by human factors is avoided, and coredrilling efficiency is improved.

Description

Technical field [0001] The invention relates to the technical field of rock mechanics, in particular to a device for coring weakly cemented soft rock. Background technique [0002] Weakly cemented soft rock is widely distributed in my country. It is affected by special geographical and climatic environment, sedimentary process and geological conditions to form its unique engineering and physical and mechanical properties. The typical characteristics are low strength and poor cementation. In the natural state, the structure is relatively dense and Complete, but easy to soften or even disintegrate after encountering water, and the mechanical properties are unstable, which brings huge economic losses and safety threats to the green mining of mineral resources and various engineering constructions in my country. Nowadays, indoor testing of soft rock sampling and processing, and studying its physical and mechanical properties have become a necessary means to study soft rock engineering...

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

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/08
CPCG01N1/08
Inventor 赵增辉高晓杰陈绍杰孙伟张明忠王清标
Owner SHANDONG UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com