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Construction method for carrier pile of major diameter long pile
An objective of the invention is to provide a construction method for a carrier pile of a major diameter long pile. A method of alternate double casing is used, and aimed at different soil layers, a plurality of means are selected, so as to complete large diameter and large depth pile body pore forming. Then carrier construction is performed on a pile tip, obviously improving carrying capacity of a pile and improving work efficiency and saving cost. The method comprises steps: 1) using a double casing pipe method to perform pore forming construction, soil-squeezing pore forming steps: making an A pile casing with a pile tip sink, making a B pile casing sink in the A pile casing and making the B pile casing sink to a set depth, soil-taking pore forming steps: making the open A pile casing sink and then taking soil mass in the A pile casing out, making the B pile casing sink in the A pile casing, and making the B pile casing sink to the set depth again, and taking soil mass in the B pile casing out; 2) according to soil layer property and upper load requirement, performing reinforcement treatment of the pile end through one of a plurality of methods, so that soil mass at a certain depth under the pile end and in a certain range are reinforced and compacted to form a pile end carrier, to realize equivalent calculation area Ae of the carrier pile; 3) and performing cast-in-place or precast concrete pile body construction through one of a plurality of methods.
Construction method for carrier pile of major diameter long pile
An objective of the invention is to provide a construction method for a carrier pile of a major diameter long pile. A method of alternate double casing is used, and aimed at different soil layers, a plurality of means are selected, so as to complete large diameter and large depth pile body pore forming. Then carrier construction is performed on a pile tip, obviously improving carrying capacity of a pile and improving work efficiency and saving cost. The method comprises steps: 1) using a double casing pipe method to perform pore forming construction, soil-squeezing pore forming steps: making an A pile casing with a pile tip sink, making a B pile casing sink in the A pile casing and making the B pile casing sink to a set depth, soil-taking pore forming steps: making the open A pile casing sink and then taking soil mass in the A pile casing out, making the B pile casing sink in the A pile casing, and making the B pile casing sink to the set depth again, and taking soil mass in the B pile casing out; 2) according to soil layer property and upper load requirement, performing reinforcement treatment of the pile end through one of a plurality of methods, so that soil mass at a certain depth under the pile end and in a certain range are reinforced and compacted to form a pile end carrier, to realize equivalent calculation area Ae of the carrier pile; 3) and performing cast-in-place or precast concrete pile body construction through one of a plurality of methods.
Construction method for carrier pile of major diameter long pile
WANG JIZHONG (author)
2015-10-21
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
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