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Lite mine roof support crib and method

a technology for roof supports and mine roofs, applied in mining structures, excavations, artificial islands, etc., can solve the problems of ineffective cost-effectiveness and material-intensive structures

Inactive Publication Date: 2011-07-07
STRATA PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention is about a new type of crib used to support the roof of a mine. The crib is made up of multiple chocks that are connected together through notches in the chocks. These notches have only one edge, which makes it easier to connect the chocks together. The crib can support a lot of weight and has multiple planes that help distribute the load. The invention also includes a method for forming the crib by adding chocks to the roof of the mine and connecting them together. This new crib design is stronger and more stable, which can improve safety in the mining industry."

Problems solved by technology

While unique, this structure has the drawback of being material intensive.
In many cases, the device provides more support than is necessary for the task and as such is not cost effective.
This is also true when available or desirable wood is in limited supply, or the wood has a generally small cross section.

Method used

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  • Lite mine roof support crib and method
  • Lite mine roof support crib and method
  • Lite mine roof support crib and method

Examples

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Embodiment Construction

[0017]Referring now to the drawings wherein like reference numerals refer to similar or identical parts throughout the several views, and more specifically to FIG. 11 thereof, there is shown a mine roof support crib 10. The crib 10 comprises a plurality of chocks 12 that are connected together through notches 14 in the chocks 12 to form at least three planes 16 and able to support at least five tons of load. Each notch has only one edge 18.

[0018]Preferably, the plurality of chocks 12 connected together can support at least 20 tons of load. Each chock 12 preferably has a long axis 20 and each notch of the chock 12 is cut at a right angle to the long axis 20 of the chock 12. Preferably, the plurality of chocks 12 forms four planes 16.

[0019]At least two of the planes 16 are preferably in perpendicular relation with each other. Each notch can have either a spacer 22 or a bar pin 24 or a staple 26 defining a receive zone 28 with the edge 18 of the corresponding notch, as shown in FIGS. 7...

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PUM

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Abstract

A mine roof support crib. The crib includes a plurality of chocks that are connected together through notches in the chocks to form at least three planes and able to support at least five tons of load. Each notch has at least one edge. A method of forming a mine roof support crib. A method of forming a chock for a mine roof crib to support a mine roof.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This is a divisional of U.S. patent application Ser. No. 11 / 221,272 filed Sep. 7, 2005, which is a continuation of U.S. patent application Ser. No. 09 / 975,341 filed Oct. 10, 2001.FIELD OF THE INVENTION[0002]The present invention is related to mine support cribs. More specifically, the present invention is related to mine support cribs having reduced amounts of wood or material.BACKGROUND OF THE INVENTION[0003]Over the last several years, increased attention has been given to more efficient systems of standing support for underground mines. U.S. Pat. No. 5,746,547 teaches a support formed by a plurality of parallel, notched chocks which are assembled to create a singular structure. While unique, this structure has the drawback of being material intensive. In many cases, the device provides more support than is necessary for the task and as such is not cost effective.[0004]This is also true when available or desirable wood is in limited sup...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E02D5/00E02D7/00E21D15/04E21D15/48
CPCE21D15/483E21D15/04
Inventor PATON-ASH, GREGORY ROYREINMANN, JR., JOHN JOSEPH
Owner STRATA PRODS