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Monitoring method for support effect of new concrete prefabricated block self-locking solid wall

A technology for concrete and prefabricated blocks, used in earth-moving drilling, mining equipment, safety devices, etc.

Active Publication Date: 2017-05-24
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

(3) The prefabricated concrete block self-locking solid wall has not been put into use at this stage. In order to test the support effect of the self-locking solid wall, mine pressure observation design should be carried out when the self-locking solid wall is put into use

Method used

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  • Monitoring method for support effect of new concrete prefabricated block self-locking solid wall
  • Monitoring method for support effect of new concrete prefabricated block self-locking solid wall
  • Monitoring method for support effect of new concrete prefabricated block self-locking solid wall

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Experimental program
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Embodiment Construction

[0023] First, five concrete blocks of different specifications, a, b, c, d, and e, are manufactured with molds. The concrete block of a specification is a rectangular parallelepiped of length×width×thickness: 1700mm×100mm×100mm; the concrete block of b specification is made in On the basis of specification a, there is a small groove at the bottom with length × width × height: 1500mm × 100mm × 30mm, and a protrusion at each end of length × width × thickness: 100mm × 100mm × 30mm; c specification concrete block is in b On the basis of the specifications, there is a first length × width × height: 100mm × 50mm × 30mm card slot on the upper end surface 100mm away from the end, and then each 100mm is reserved with the same specification card slot, a total of 8 pieces, on the basis of specification b, there is a first length x width x height: 100mm x 50mm x 30mm card slot on the upper end of the long side 200mm away from the end, and then every other There are 7 card slots of the sam...

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Abstract

The invention discloses a monitoring method for support effect of new concrete prefabricated block self-locking solid wall, which belongs to the field of support technology beside roadway in goaf-side entry retaining for next sublevel. Masonry wall is made of five different specifications of a concrete block through a reasonable and orderly arrangement of assembled. Through a well-designed concrete block specifications and an order, the wall has a self-locking function, and integrity of a wall and anti-side push ability has enhanced. From a horizontal, vertical, tilt angle of the three aspects, a wall resistance to be deformed is observed, stress monitoring of different parts of the wall is monitored, and wall support strength is analyzed. Through statistical analysis of a monitoring data, an important basis of the overall quality of the wall is improved.

Description

technical field [0001] The invention relates to the technical field of roadside support for gob-side entry retention in mining engineering, in particular to a method for monitoring the support effect of a self-locking solid wall of a new type of concrete prefabricated block. Background technique [0002] (1) At present, the supporting body of gobside entry retention mainly includes concrete pouring solid wall, gangue bag anchor reinforcement wall, concrete prefabricated block hollow wall, concrete prefabricated block solid wall, etc., but basically there are certain defects, applicable conditions Limited, difficult to popularize and use. (2) The concrete prefabricated block self-locking solid wall is a new type of wall suitable for the side support of gob-side entry retaining. The factors considered in the design are more comprehensive, so that it has high early strength, good integrity, and lateral resistance. It has the advantages of strong pressure capacity, convenient o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F15/04E21F17/00
CPCE21F15/005E21F15/04E21F17/00
Inventor 张培森颜伟阚忠辉赵仕钧李凯苗旺武守鑫赵亚鹏王嘉伟
Owner SHANDONG UNIV OF SCI & TECH