Construction method of concrete pile

Abstract

The invention provides a construction method of a concrete pile. The construction method comprises the following steps of: firstly, finishing the construction of a concrete cast-in-place pile; and under the condition of keeping the integrity of a concrete pile body, carrying out the construction of pile end carriers with various forms to eliminate common hidden dangers of pile bottom soil leakage,sediment and the like of the conventional concrete cast-in-place pile, further improve the bearing capability of the concrete cast-in-place pile and realize the improvement of the working efficiencyand the saving of the cost. The construction method comprises three types: one type is that pile body concrete is poured after a pile casing channel is pre-arranged and then the construction of a pileend curing carrier or a dense carrier or a curing and dense carrier is carried out; the second type is that the pile casing channel is additionally arranged after the pile body concrete is poured andthen the construction of the pile end curing carrier or the dense carrier or the curing and dense carrier is carried out; and the third type is that the pile body concrete is poured after the pile casing channel is pre-arranged and then the construction of a pile end dense anti-pulling carrier is carried out.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to the construction of concrete piles. Background technique [0002] With the rapid development of my country's national construction, there are more and more construction projects such as bridges and elevated railways, and the original multi-storey buildings are gradually replaced by high-rise buildings. Therefore, the requirements for the bearing capacity of the foundation piles are relatively higher and higher. Faced with this trend, in geotechnical engineering, the method of increasing pile diameter and pile length is generally adopted at present to increase the friction force and end resistance of piles to improve the bearing capacity of piles. However, this large diameter and The cost of large-depth pile engineering is very high. The reason is that the consumption of building materials is very large, and the requirements for construction equipment are very high. The cost of ge...

AI Technical Summary

Problems solved by technology

However, due to the limitation of construction equipment and construction methods, it is difficult to complete piles with larger diameter and longer piles, so it is difficult to apply in projects with high bearing capacity requirements.

[0005] In addition, my country's coastal areas are areas where developed cities are relatively concentrated, and there are many construction projects. Most of the geological conditions in coastal areas have the same characteristics, that is, the content of groundwater is relatively rich and the soil is soft. The same is true for carrier piles. During construction, it is particularly easy to encounter water in the casing that cannot be constructed, the concrete of the pile body is eroded by water or silt, and the pile is prone to shrinkage or broken piles, and the soil at the pile end is compacted by fillers. The impact caused serious disturbances and other problems, which seriously affected the bearing capacity of the pile foundation

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