High-Capacity Micropile

Achieves precise threading of High-Capacity Micropile with skillful technology

We manufacture products that please our customers with the screw processing technology cultivated over many years and thorough quality control.
 

What is HIGH-CAPACITY MICROPILE?　

The high-capacity micropile method is a method of embedding reinforcing deformed rebars and high-strength steel pipes by incorporating the excavation technology and grout pressure injection technology used in the ground anchor method into the conventional micropile technology.This method provides piles with high yield strength and high bearing capacity.

This method is used for seismic retrofitting of existing pier foundations, foundation reinforcement of various structures, and foundation work on narrow lands.

Construction procedure

After drilling a hole using a small boring machine, build a pile consisting of high-strength steel pipes, rebar and grout.

Features

(1)Design side

Small diameter but high bearing capacity
Strong resistance to pushing and pulling directions
The size of the footing can be reduced
Strong resistance to horizontal force by using diagonal piles

(2)Construction side

Since it uses a small machine, there is less noise and vibration.
Small impact on underground buried objects and existing structures
Can be installed at low head
Can handle height restrictions of 3.5m
Can drill on gravel ground, boulder ground and rock
Can reduce the amount of soil to dig

Construction example

・Bridge pier reinforcement    
Reinforcement of the Sashiumi Bridge on Route 9    
Seismic retrofitting of Ryuzenji overpass    
Widening the lower part of the inner bridge of Route 1    
Reinforcement of Ueno-hietsu Bridge on Route 1

・Abutment reinforcement    
Repair of Bishamon Bridge pier

・Retaining wall (embankment)    
Coastal conservation of Yamada fishing port

・Disaster recovery    
Disaster recovery work for Arahira-Yaehara Bridge    
Kozako-Takatsuka road improvement works

・Road facility(Pedestrian bridge)    
Fujinomiya pedestrian bridge improvement work    
New construction of free passage in Datemonbetsu station

・Railway facilities(Tunnel buffer construction)    
Tunnel buffer construction of Tohoku Shinkansen    

・Water supply facility (reinforcement of water distribution tower)    
Seismic retrofitting of the water distribution tower at Rokku Water Purification Station    

・Water supply facility (reinforcement of water distribution reservoir)    
Seismic retrofitting of the distribution reservoir at Kameido Water Supply Station    

・Water supply facility (reinforcement of water distribution reservoir)    
Seismic retrofitting of the distribution reservoir at Kameido Water Supply Station

・Water supply facility (reinforcement of water bridge)    
Seismic retrofitting of the substructure of the 2nd Tempaku Aqueduct

・Disaster prevention facility(Rock-shed)    
Renovation work of Route 269    

・Electric power facility (reinforcement of steel tower)    
Reinforcement of the steel tower on the Hino trunk line of Chugoku Electric Power Co., Inc.    

Japanese Association of High-Capacity Micropile

This study group was established in 1997 with the aim of contributing to the development of safe and economical structures by promoting the spread of micropile construction methods, improving seismic reinforcement and technology, and being resistant to natural disasters and having excellent durability.You can check the latest information on the official website of this study group.

WEB SITE(Japanese Association of High-Capacity Micropile)