Temporary bridge and temporary pier construction method with a 20m span integrated installation - L pier construction method.
Reduction of the number of piles due to the long span girder construction! Temporary bridge and temporary pier construction using a 20m span unified erection method.
The "L Pier Construction Method" utilizes high-strength materials for the fabrication of girders and steel pipe piles, allowing for the use of large construction machinery capable of operating in an 8-meter width, achieving a maximum span length of 20 meters through vertical installation. This method can accommodate year-round placement within rivers, eliminating the need for repeated installation and removal during non-flood periods. As a result, it can be utilized for the construction, renewal, and maintenance of large river structures such as long bridges, as well as for wide-ranging disaster recovery and reconstruction projects, including construction piers, detours, and emergency bridges. It is the first long-span compatible LIBRA bridge. By connecting the pile frame with brace pipes and brace materials in a ground assembly and installing them as a unit, the need for lifting operations is eliminated, enhancing safety. **Features** - By pre-installing the assembled upper panels through reaction poles, safety and workability are improved. - The use of high-strength materials for the main frame enhances quality and strength. - Connecting the pile frame with brace pipes and brace materials in a ground assembly and installing them as a unit eliminates the need for lifting operations, improving safety. *For more details, please download the PDF or feel free to contact us.*
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【Other Features】 - The installation of support piles can be performed with a dedicated rotary cutting and pressing machine and a hydraulic middle excavator, allowing for low noise and low vibration construction. Additionally, for hard rock and boulder layers, a down-the-hole hammer type middle excavator can be used for pile installation, and the option to use a vibratory hammer provides flexibility to accommodate collapsing ground, interlayer ground, and all types of hard ground and bedrock layers. - The use of long-span fabricated girders reduces the number of piles, which minimizes riverbed obstruction and allows for year-round installation. *For more details, please download the PDF or feel free to contact us.*
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Applications/Examples of results
【Construction Examples】 ■Emergency bridge for disaster recovery work ■Working platform for new bridge construction *For more details, please download the PDF or feel free to contact us.
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Company information
Yokoyama Foundation Construction Co., Ltd. is a company located in Sayogun, Hyogo Prefecture, primarily engaged in civil engineering, scaffolding and earthwork, and paving construction. For rapid construction of heavy temporary works that support the foundation of construction sites and foundation works that support structures, please leave it to Yokoyama Foundation Construction Co., Ltd.