The Gyropress Method™—a method for rotary cutting press-in of tubular piles—of GIKEN LTD. is being adopted in Singapore in multiple cases. In the hotel construction business, the Singapore-based Guan Chuan Engineering Construction Pte Ltd, a member company of GTOSS™ ASIA*¹, has used it in construction. GIKEN Group company GIKEN SEKO CO., LTD. provided consulting support for Guan Chuan.
With its narrow land area, Singapore has many densely populated areas with concentrated facilities, leading to an increase in construction work taking place under severe constraints. There has also been a recent increase in construction projects on hard ground. The Gyropress Method™, which allows for vibration-free and noise-free construction, space-saving operation, and fast construction speed even on hard ground, was highly regarded by construction-related parties at a demonstration carried out with Guan Chuan, and starting with its first adoption*² in January for a research facility construction project, it is seeing increasing use. This time, being able to demonstrate both an innovative solution to overcoming constraints and its effectiveness, we can expect to see its further adoption in urban redevelopment where work must be done in limited spaces, or ways to address the deterioration of facilities that require special consideration, such as medical, research, and educational institutions.
In future, in addition to the construction sector, we will also move ahead with technical proposals for strengthening embankments and revetments at airports and coastal areas in response to the growing need for measures against high tides and flooding in Singapore. We shall continue to steadily accelerate the spread of our technology and creation of business cases throughout Asia based on close ties with local member companies of GTOSS™.
*1 Comprehensive support service for press-in machine users provided by the Company. Please also see past news release. (https://www.giken.com/en/news-cat/release/01_nov_2024/)
*2 Please also see past news release. (https://www.giken.com/en/news-cat/release/17_jun_2025/)
■Construction Details
Using the GYRO PILER™ GRV1230, 138 tubular piles measuring 1,000 mm in diameter and between 9.5 and 12 m in length were pressed in. An earth retaining wall* extending approximately 152 m was constructed.
* A wall installed to prevent surrounding soil from collapsing when excavating ground.
■Gyropress Method™
This method constructs a robust and resilient Implant Structure via rotary press-in of tubular piles fitted with ripping bits called “ring bits” at their tips, penetrating existing structures and hard ground. As the method can penetrate existing structures, there is no need to remove buried objects, and pre-excavation using excavators is unnecessary, thus reducing construction time and costs. Furthermore, as the lightweight and compact GYRO PILER™ tubular pile rotary cutting press-in machine firmly grips already installed piles, there is no risk of falling over thanks to the principle used, and construction can be carried out whilst suppressing vibration and noise, eliminating concerns about adverse effects on the surrounding environment.
■Reason for Adoption
The site had hard ground, and other construction methods required large vibratory pile drivers. However, in addition to issues securing construction space on site, with old building, apartment complexes, and offices adjacent, damage to these structures from vibrations during construction would be an issue. As existing concrete structures would need to be removed, this would lengthen the construction period.
Using the Gyropress Method™ would make it possible to carry out construction in a restricted space while minimising vibrations and noise even on hard ground. In addition, as the piles are directly pressed in, they can go straight through concrete and other obstacles during construction. This technology was adopted as it could clear the constraints, including being able to shorten the construction period.
■ Construction Overview
| Project Name | Earth retaining work using tubular piles as part of hotel construction |
|---|---|
| Location | 24 Peck Seah Street, Singapore |
| Project Owner | 24 PS ST PROPERTY PTE LTD |
| Main contractor | Kim Hua Construction Pte Ltd |
| Sub-contractor | Guan Chuan Engineering Construction Pte Ltd |
| Equipment | GYRO PILER™ GRV1230 |
| Specification of Pile Elements | 138 tubular piles (1,000 mm diameter, 9.5-12 m lengths) |
| Press-in Construction Period | 29 April to 7 July 2025 |
■Profile of GIKEN Group
GIKEN developed the SILENT PILER™, the world’s first reaction-based, non-vibratory hydraulic pile driving machine that operates with minimal noise impacts. The GIKEN Group now actively promotes its press-in technology worldwide and contributes to the construction industry by proposing and implementing innovative solutions. The innovative press-in technology provides a unique solution and the adoption of this technology has spread to over 40 nations and regions.
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