CAJ | 학술논문

根据工程实践，介绍了桩基施工前，根据地质勘察资料用经验公式法(按土的物理性质指标查表法)估算钢筋混凝土预制桩单桩竖向承载力标准值、竖向承载力设计值。在打桩机型号确定后，用打桩公式法(动荷载试验法)试算该桩的单桩竖向容许承载力值、竖向极限承载力标准值、竖向承载力设计值和打桩经验贯入度。把以上估算、试算的单桩竖向承载力三项值和打桩经验贯入度作为控制打桩质量的初步指标。然后结合高应变动力检测法取得工程桩试桩的单桩竖向极限承载力标准值、竖向承载力标准值、竖向承载力设计值和最终贯入度。结果表明，以上三种单桩竖向承载力值均满足了设计要求的单桩竖向承载力设计值，从而确定用打桩最终贯入度为主，控制打桩质量。
근거공정실천，개소료장기시공전，근거지질감찰자료용경험공식법(안토적물이성질지표사표법)고산강근혼응토예제장단장수향승재력표준치、수향승재력설계치。재타장궤형호학정후，용타장공식법(동하재시험법)시산해장적단장수향용허승재력치、수향겁한승재력표준치、수향승재력설계치화타장경험관입도。파이상고산、시산적단장수향승재력삼항치화타장경험관입도작위공제타장질량적초보지표。연후결합고응변동력검측법취득공정장시장적단장수향겁한승재력표준치、수향승재력표준치、수향승재력설계치화최종관입도。결과표명，이상삼충단장수향승재력치균만족료설계요구적단장수향승재력설계치，종이학정용타장최종관입도위주，공제타장질량。
According to project Practice, this paper introduced estimating vertical bearing capacity design value and standard value of single reinforced concrete pile,which used empirical formula law (the physical nature index of earth according to check table law) according to the geological prospecting material before construction of pile foundation.When the model of pile driver has been selected,tried to calculate the vertical allowable bearing capacity value,vertical ultimate bearing capacity characteristic value,vertical bearing capacity design value and experience penetration of driving pile,used driving pile formula method(move load to test law). Regarded above calculate result as the preliminary index of control piling quality.And then,the single pile gets vertical ultimate bearing capacity standard value, vertical bearing capacity design value and final set would be acquired which combined with high strain power detection law.The results expressed that above three kinds of vertical bearing capacity values were all satisfied the design requirements,thus we can control drive pile quantity with final set.