Rigid drainage pile and construction method thereof
A construction method and technology of drainage piles, which are applied in sheet pile walls, foundation structure engineering, construction, etc., can solve the problems of pile body concrete that is prone to shrinkage, segregation, reduction of pile side resistance, and no improvement effect, etc., to achieve bearing capacity High, increased strength, the effect of increased strength
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Example Embodiment
[0024] Embodiment: A rigid drainage pile, composed of a prefabricated impervious concrete pipe 1 and at least one section of a prefabricated permeable concrete pipe 2. The prefabricated impervious concrete pipe and the prefabricated permeable concrete pipe are respectively provided with first and second axial through holes 11 and 12, the first and second through holes are in sealed communication, and the second through holes on adjacent prefabricated permeable concrete pipes are in sealed communication with each other.
[0025] A permeable structure of the prefabricated permeable concrete pipe is: the pipe wall is made of permeable concrete.
[0026] Another permeable structure of the prefabricated concrete pipe is: the elevation of the prefabricated concrete pipe is provided with at least one axial first drainage groove 3, and at least one of the upper and lower end surfaces of the precast concrete pipe is provided with a first Two drainage grooves 4, the position of the second d...
Example Embodiment
[0042] Example: A project built 5000m on the weak coastal foundation 3 There are 5 steel oil storage tanks. The base of the oil tank adopts reinforced concrete slab foundation. The bottom load of the foundation is 200kPa. The stratum conditions are shown in the following table:
[0043] Physical and mechanical indexes of foundation soil
[0044] Serial number
[0045] This project uses a plain concrete rigid pile composite foundation. If the invention is used for foundation treatment, the technical and economic comparison of the two methods is as follows:
[0046] Technical and economic comparison table of the two methods
[0047]
[0048] From the above comparison, it can be seen that this example has obvious economic advantages, and more importantly: the rigid pile composite foundation used CFG and other plain concrete in the past, and the difficulty of the pile quality control affected its promotion in soft soil areas. In application, the invention adopts the method...
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