Mine support stock truss device

The utility model relates to a mine support stock truss device, including a plurality of stocks, two stocks are a set of, are equipped with the strainer between two a set of stocks, be connected withthe pull rod reinforcing bar respectively between strainer and two stocks, the one end and the strain...

Full description

Saved in:
Bibliographic Details
Main Authors LYU YINGLEI, WANG MINGBIN, HE SHUNBIN, LIU CHENGPENG, YANG SHANGHUAN, DU HAO, YU CHANGXIAN, LI WEI, GUO BIN, XU ZIGANG
Format Patent
LanguageChinese
English
Published 06.02.2018
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
Online AccessGet full text

Cover

More Information
Summary:The utility model relates to a mine support stock truss device, including a plurality of stocks, two stocks are a set of, are equipped with the strainer between two a set of stocks, be connected withthe pull rod reinforcing bar respectively between strainer and two stocks, the one end and the strainer of pull rod reinforcing bar are connected, and the other end is connected with the lower extremeof stock. The utility model discloses a top sheet extrusion to broken surrounding rock can have been strengthened in advance to the prestress application of broken surrounding rock roof to stock, pull rod reinforcing bar and strainer, has strengthened the three -dimensional prestressing force to fractured rock mass. It is simple to strut the process, and supporting intensity is big, can prevent effectively that the not hard up of roof rock stratum from droing, has improved broken surrounding rock's entire supporting effect, and the work progress is simple, and is efficient, and the construction cycle is reduced ensure
Bibliography:Application Number: CN20172815590U