The compression of the pile in the pile group can be determined by static load test. The settlement of the pile toe is calculated by layer wise summation method.
群桩中桩身压缩由单桩静载试验得到的桩顶沉降与桩端沉降之差求得，群桩的桩端沉降由分层总和法计算。
Based on elastic methods and the layer-wise summation method, a program developed for settlement calculation of pile ground and combined composite foundation.
基于弹性理论方法，结合分层总和法，编制了群桩沉降计算程序，并掘此对普通群桩和组合桩群桩性状和沉降计算进行研究。
The loss summation method is used for calculating output power of AC motor.
在测量传输功率较大的变频电动机的功率时，采用了损耗总和法进行计算。
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