【摘要】 现阶段，我国在桩基础选型方面存在不足，主要是由于工程勘察失误、设计人员经验不足、施工质量难以控制等多种原因造成的。因此，采用层次分析法将方案选型分析结构化。从工程造价因素、工程进度因素、工程质量因素及环境影响因素建立桩基础评价体系，从而综合计算各备选桩型的适宜性。根据现场地层参数和建筑荷载的需求，可以选择预应力空心管桩、预应力混凝土管桩及钻孔灌注桩作为基础类型。经过层次分析法比选，结果表明在东莞某地区基坑工程中采用预应力空心管桩方案最优。更多还原

【Abstract】 At the current stage,the deficiencies in the selection of pile foundations in China are due to various reasons such as errors in engineering investigation,insufficient experience of design personnel,and difficulties in controlling construction quality.Therefore,the Analytic Hierarchy Process(AHP) is employed to structure the analysis of scheme selection.A pile foundation evaluation system is established from engineering cost factors,engineering progress factors,engineering quality factors,and environmental impact factors, to comprehensively calculate the suitability of each alternative pile type.Based on the site stratum parameters and building load requirements,prestressed hollow pipe piles,prestressed concrete pipe piles,and bored cast-in-place piles can be selected as foundation types.The AHP comparison results indicate that the use of prestressed hollow pipe piles is the optimal scheme for a foundation pit project in a certain area of Dongguan.更多还原