Underground pile foundation construction engineering design method

Abstract

The invention relates to an underground pile foundation construction engineering design method, which is characterized by comprising the following steps of S1, early-stage design; S2, foundation investigation and foundation model selection; S3, pile size design; S4, calculating a pile foundation; S5, pile foundation design; S6, pile foundation calculation sheet compiling, and pile foundation planearrangement diagram, pile foundation bulk sample design diagram, drilling plane arrangement diagram and geological longitudinal section and pile bottom elevation design diagram drawing; and S7, pilemanufacturing, pile foundation driving and pile splicing. The underground pile foundation construction engineering design method is high in practicability, the manpower and material resource cost canbe effectively reduced, the construction efficiency is improved, the construction period is shortened, and the underground pile foundation designed through the design method is better in stability, higher in stress resistance and bearing capacity and low in possibility of deformation or instability; redundancy of structural bearing capacity and waste of materials are avoided, the construction costis lower, and the quality is better.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, in particular to an underground pile foundation construction engineering design method. Background technique [0002] With the continuous development of the national economy, municipal engineering and building construction have become an important part of the national infrastructure, and its scale and requirements are also constantly developing in the direction of high standards and high requirements. key object. Excellent design performance and reasonable layout of underground pile foundations are one of the important factors for the stability and good progress of underground pile foundation construction projects. [0003] The design of the pile foundation is to enhance the bearing capacity of the foundation to the building. The pile base material is set deep into the foundation by piling or reinforced concrete pouring. Especially in the economically developed coastal areas, th...

AI Technical Summary

Problems solved by technology

However, the pile types in the prior art are designed and calculated according to homogeneous materials. For friction piles, there is usually a difference between the structural bearing capacity determined by the material of the pile body and the bearing capacity of the pile foundation determined by the soil. The problem of matching, especially in soft soil, in order to improve the foundation bearing capacity of the pile, the pile body is enlarged, resulting in a surplus of the structural bearing capacity of the pile and a waste of materials; on the other hand, there are different pile body defects in the existing pile types In addition, the existing grouting process uses cement slurry to fill the gap between the soil, which can properly increase the bearing capacity of the pile, but cannot effectively increase the calculated size of the pile body