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

Impact type double tube double-motion coring device and its method

A technology of double-tube double-action and coring device, which is applied in the direction of extracting undisturbed core devices, earthwork drilling and mining, etc., can solve problems such as large gaps, and achieve the effects of easy operation, high precision and good stability

Inactive Publication Date: 2010-12-22
INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, this gap tends to increase

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
  • Impact type double tube double-motion coring device and its method
  • Impact type double tube double-motion coring device and its method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] Below in conjunction with accompanying drawing, the present invention is further described:

[0053] 1. The device presses figure 1 , figure 2 , Figure 3.1 with Figure 3.2 Production and installation.

[0054] 2. The structure and function of each component

[0055] 1. Guiding rod (1)

[0056] Such as figure 1 , The guiding rod (1) is a kind of hollow circular elongated rod, requires that the outer wall is smooth, and plays the role of connection and guide rail.

[0057] 2. Piercing impact hammer (2)

[0058] Such as figure 1, the center-piercing impact hammer (2) is a hollow cylindrical metal hammer, the inner wall is required to be smooth, and its inner diameter is about 2 mm larger than the outer diameter of the pilot rod (1), and its weight can be adjusted according to the hardness of the soil layer .

[0059] 3. Impact pad (3)

[0060] Such as figure 1 , The shock pad disc (3) is a hollow circular metal disc, which plays the role of force transmissio...

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

No PUM Login to View More

Abstract

The invention particularly relates to an impulse type double-pipe double-acting core taking device and a method, which relates to a technique for geotechnical engineering to survey loose ground layer and sample. The structure of the device is that the upper end of a guide rod (1) is connected with a drill rod of a drilling machine, the lower end of the guide rod (1) is connected with an outer cannula (4) after passing through a cross-core jump bit (2) and an impacting disc (3) in turn, the lower end of the outer cannula (4) is connected with an impacting drill head (7), the cross-core jump bit (2) is connected with an automatic hammer dropping device of a hoisting rope of the drilling machine, which is arranged on the impacting disc (3), the inner wall of the outer cannula (4) is providedwith a sampling inner pipe (5), the lower end of the sampling inner pipe (5) is connected with a double-layer loose-leaf flap spring plate (6). The impulse type double-pipe double-acting core taking device not only has obvious advantages to invest and sample under complex ground layer loose condition, which can also be used to do geological investigation and sample for the field such as underwater, sea engineering and the like.

Description

technical field [0001] The invention relates to a sampling technology for geotechnical engineering investigation of loose formations, in particular to an impact-type double-tube double-action coring device and method thereof for silt, silty fine sand, medium-coarse sand, strong weathered rock, and the like. [0002] Specifically, it is mainly aimed at the exploration and sampling of soil layers that are difficult to sample loosely in complex strata, highlighting that one cycle can be sampled at any length, the samples in the sampling inner tube are easy to take out and seal up, and the sampling rate and sampling quality are high, especially suitable for Reconnaissance and sampling work with special requirements such as sampling of sediment columnar soil with undisturbed bedding, fine layered sampling, maintaining a certain original structure and structure of the sample, and biological disturbance traces. Background technique [0003] In the investigation and research of mari...

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 Patents(China)
IPC IPC(8): E21B25/00
Inventor 孟庆山汪稔胡明鉴王新志杨超余克服
Owner INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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