Introduction to the "Inner Weight Method"

Construction is possible only on the inside of the manhole! Inner weight method.

The "Inner Weight Method" can be constructed only from the inside of the manhole, making it relatively easy to implement even on busy main roads and in urban areas with many surrounding buried utilities. It is based on the simple principle of increasing the weight of the manhole, making its apparent specific gravity nearly equal to the unit weight of liquefied ground. The simplicity of the principle and design makes it easier for sewer operators, road managers, and local residents to understand, facilitating smooth project advancement. 【Features】 ■ Construction is possible only from the inside of the manhole ■ The apparent specific gravity of the manhole is increased to be nearly equal to the unit weight of liquefied ground *For more details, please download the PDF or feel free to contact us.

Manhole bodySpecial Construction Method