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A platform for research: civil engineering, architecture and urbanism
Classification anchoring type draught fan rock anchor rod assembly
The invention relates to a classification anchoring type draught fan rock anchor rod assembly. The classification anchoring type draught fan rock anchor rod assembly comprises n (an even number) thin anchor rods distributed annularly. The thin anchor rods penetrate through locking nuts, load dispersing plates, grout blankets below the load dispersing plates, concrete bearing platforms, cushion layers, anchor rod polystyrene plates, positioning nuts, anchoring plates and anchoring nuts from top to bottom in sequence. According to the classification anchoring type draught fan rock anchor rod assembly, a thick anchor rod is replaced by the thin anchor rods, and the risks caused by breaking of the anchor rod are reduced. Every two thin anchor rods belong to one pair, the thin anchor rods are sleeved with casing pipes from top to bottom so that the thin anchor rods can be isolated from borehole grout, and after foundation construction is finished, prestress is applied to the thin anchor rods. Each pair of thin anchor rods is anchored to the positioning nuts, the anchoring plates and the anchoring nuts after being cut at different depths, the prestress of the anchor rods is transmitted to the borehole grout and rock mass through the pressure of the anchoring plates in a pressure classification mode, the bonding effect of the thin anchor rods and the borehole grout is not used, and common bonding anchoring damage due to reciprocating fatigue loads of a draught fan is avoided.
Classification anchoring type draught fan rock anchor rod assembly
The invention relates to a classification anchoring type draught fan rock anchor rod assembly. The classification anchoring type draught fan rock anchor rod assembly comprises n (an even number) thin anchor rods distributed annularly. The thin anchor rods penetrate through locking nuts, load dispersing plates, grout blankets below the load dispersing plates, concrete bearing platforms, cushion layers, anchor rod polystyrene plates, positioning nuts, anchoring plates and anchoring nuts from top to bottom in sequence. According to the classification anchoring type draught fan rock anchor rod assembly, a thick anchor rod is replaced by the thin anchor rods, and the risks caused by breaking of the anchor rod are reduced. Every two thin anchor rods belong to one pair, the thin anchor rods are sleeved with casing pipes from top to bottom so that the thin anchor rods can be isolated from borehole grout, and after foundation construction is finished, prestress is applied to the thin anchor rods. Each pair of thin anchor rods is anchored to the positioning nuts, the anchoring plates and the anchoring nuts after being cut at different depths, the prestress of the anchor rods is transmitted to the borehole grout and rock mass through the pressure of the anchoring plates in a pressure classification mode, the bonding effect of the thin anchor rods and the borehole grout is not used, and common bonding anchoring damage due to reciprocating fatigue loads of a draught fan is avoided.
Classification anchoring type draught fan rock anchor rod assembly
CHEN JUNLING (author)
2015-10-07
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
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