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在软土地区建设高速列车运行线,桩基础变位是控制设计的重要因素,而竖向变位则是以控制沉降量和不均匀沉降为主。为此,岩土工程勘察报告将全线划分为11个地质区段,对各区段选择桩端持力层和桩型,预估了单桩承载力和桩基础的沉降量,提供设计所需的各项参数,并对土的均匀性进行了分析。两年半的沉降观测成果表明,沉降量和沉降差都明显小于允许值。这一经验对于在软土地区建设高速铁路有一定的参考价值。
The construction of high-speed train line in soft soil area, pile foundation displacement is an important factor in the control design, while the vertical displacement is dominated by settlement and uneven settlement. To this end, the geotechnical investigation report will be divided into 11 geological sections across the board, for each section select the pile bearing capacity and pile type, to estimate the single pile bearing capacity and pile foundation settlement, to provide the necessary design Various parameters, and analysis of soil homogeneity. Two and a half years of subsidence observation results show that the settlement and settlement difference are significantly less than the allowable value. This experience has certain reference value for the construction of high-speed railway in soft soil areas.