1. General requirements 1. The location of the steel sheet piles should meet the design requirements and facilitate the trench foundation earthwork construction, that is,
The whole process of refined construction of prestressed bridges mainly includes seven aspects: pile foundation, pedestal, column, cap beam, precast slab, beam-slab, and bridge deck.
During the pouring process of bored cast-in-place piles, the steel cage often floats up. In mild cases, the steel cage may float up by a
Pile foundations are widely used due to their high bearing capacity, good stability, small settlement and differential deformation, fast and stable settlement, strong seismic performance,
The rotary full casing construction method is also known as the “BUROTO” method. The steel casing is used to protect the wall during the hole-forming
According to the characteristics of the pile and the vertical force, the pile foundation can be divided into two categories: friction pile and end-bearing pile.
When problems occur during bored pile construction, the on-site technical personnel on duty must immediately adopt the correct handling method and report to the chief
1. Common problems During the construction process, bored piles are subject to natural conditions such as technology and strata, as well as management conditions such
1. Common quality problems during construction (1) Pipe blockage: This manifests as concrete blocking the pumping pipeline or drill pipe during the concrete pouring process.
1. The Drilling Methods and Principles Can Be Divided into the Following Categories: Spiral drilling, positive circulation rotary drilling, reverse circulation rotary drilling, submersible drilling,
1.1 Construction Layout Before the construction layout, the measurement points provided by the design shall be reviewed, the plane control network and the elevation control
1, General requirements 1. The location of the steel sheet piles should meet the design requirements and facilitate the construction of the trench foundation, that
