Pile driving sounds simple – hammer columns into the ground. But it is a complex process that requires extensive testing and accurate calculation. Selecting the right pile material and equipment for the soil and load capacity depends upon it. There are several problems that can arise in the fie...
The analysis example shows that compared with no construction error of pile, the bending moment and the reinforcement of base beam increase greatly in the scope of allowable maximal construction error stipulated by the Code. The calculation method of the internal forces of base beam is put forward...
Thus, reinforcement and crack control of uplift cast-in-place pile and prestressed uplift cast-in-place pile are analyzed by simulation design for the actual working condition. The calculation results show that prestressed uplift cast-in-place pile can not only decrease reinforcing area, but also ...
4.1 Settlement of pile cap under load-unload on pile cap Fig.5 shows that the settlement of pile cap reaches the maximum when the load of pile tope reaches the maximum. In the same single pile loading condition, the maximum settlement of pile cap of 3×3 pile group (4D) equals 72.5% ...
The center pile (pile #1) was installed and tested as a single pile before the other piles were installed and connected by a rigid cap. The load–movement response of the five piles was different, but the difference was limited to the development during the initial loading. Beyond the first...
Effects of interaction among piles, restraint of pile top, lateral resistance of cap and friction of cap bottom were analyzed. Method of evaluation of comprehensive effect coefficient for lateral bearing capacity of pile group are presented. The comparison between calculated and measured values shows ...
design to determine whether it is necessary to consider the hydrodynamic pressure. Wang et al. (2011) idealized an elevated pile cap as a truncated cylinder that was immersed in water and established a calculation method for the added mass matrix and added damping matrix of the pile cap. An ...
The influence of pile cap is not considered. (6) The harmonic excitation acts horizontally on the pile top. Utilizing the Timoshenko beam theory and combining it with the assumptions, the dynamic equilibrium equation of the helical pile can be derived as ⎧⎩⎨ 𝑘′𝐴p𝐺p[∂𝜑...
To supplement the model test, a theoretical method is introduced to investigate the calculation of pile-bearing capacity based on the results of the test. Based on the test results, it is found that the bearing capacity of the test pile is mainly borne by the pile side resistance and end ...
According to possible problems in design of multi-pillar pile cap,tension pile,tie beam,which are all related with pile cap,proper design method is discussed based on author s experience. 针对多柱联合桩承台、抗拔桩及承台、承台间联系梁设计中可能出现的问题,结合个人经验探讨了合理设计方法,并得出...