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2022
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Invention
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Cutting arm for forming enlarged-tip-reinforcing part of pile, and method for constructing pile h... |
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Invention
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Cutting arm for composite steel pipe pile, rotary penetration-type composite steel pipe pile havi... |
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Invention
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Rotating penetration rod for forming expanded base reinforcement part of pile. The present invent... |
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Invention
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Rotational penetration-type composite steel pipe pile having expanded tip reinforcing portion and... |
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Invention
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Composite steel pipe pile provided with reinforced tip and construction method therefor. The pres... |
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2017
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Invention
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Pile shoe for open lower end type intrusion concrete pile and open lower end type intrusion concr... |
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2016
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Invention
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Driven steel pipe pile and construction method therefor. The present invention relates to a drive... |
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Invention
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Driven concrete pile having open bottom and construction method thereof. The present invention re... |
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Invention
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Driven concrete pile and construction method thereof. The present invention relates to a driven c... |
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2015
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Invention
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Self-diameter-enlarging pile, and method for constructing same. The present invention relates to ... |
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Invention
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Front-end-enlargeable pile, and method for constructing same. The present invention relates to a ... |
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Invention
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Construction method for reinforcement of pile foundation ground by using tip-diameter-expanding p... |
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2014
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Invention
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Diameter-enlarging system for expandable pile. The present invention relates to a diameter-enlarg... |
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Invention
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Front-end continuously extendable pile. The present invention relates to a front-end extendable p... |
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Invention
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Front-end extendable pile and construction method therefor. The present invention relates to a fr... |
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Invention
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Drill bit to directly discharge excavated slime above ground and method of using same. The presen... |
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Invention
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Self-enlargeable pile and construction method therefor. The present invention relates to a pile p... |
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2013
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Invention
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Inoperativeness-prevention drill bit and method for using same. The present invention relates to ... |
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Invention
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Apparatus for treating slime using drill for ground excavation and method for same. The present i... |
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2012
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Invention
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Method and apparatus for pouring bonding filler in a perforation expansion portion for enhancing ... |
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Invention
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Reinforcement structure for a concrete anchorage zone for piles and tension members for building ... |
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2011
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Invention
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Borehole-diameter-expanding drill having the function of maintaining the shape of the reamed area... |
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Invention
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Method of concreting expanded hole for a construction pile and a tensile member. The present inve... |
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Invention
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Method for constructing a footing at the bottom of a pile and a fixed anchorage portion of a tens... |
