Plastic drainage board, also known as plastic drainage belt, has various shapes such as wave type and harmonica type. In the middle is the extruded plastic core board, which is the skeleton and channel of the drainage belt. It is a good vertical channel for soft foundation treatment of silt, silt soil, flush fill and other saturated viscous and miscellaneous fills using drainage consolidation method, which greatly shortens the consolidation time of soft soil.
The advantages
of reinforcing soft soil foundation with plastic drainage
board:
1. Good
drainage, smooth drainage, and guaranteed drainage
effect.
2. The
material has good strength and ductility, and can be suitable for
the deformation
capacity of
the foundation without affecting the drainage
performance.
3. The
cross-sectional size of the drainage board is small, and the
disturbance to the foundation is small in the process of applying
the drainage board.
4. It can be
used for plug-in construction on ultra-soft
foundations.
5. The
construction is fast and the construction period is short. Each
inserting machine can insert more than 5000m per day, and the
cost is lower than that of the bag sand
well.
The depth of
SPB-A type plastic drainage board is within 15 meters for
vertical drainage of soft soil foundation
SPB-B type
plastic drainage board depth is within 15~25 meters for vertical
drainage of soft soil foundation
SPB-C type
plastic drainage board depth is within 25~35 meters Vertical
drainage of soft soil foundation
SPB-D plastic
drainage board depth of more than 35 meters of vertical drainage
of soft soil foundation