桩伴侣变刚调平桩与竖向增强体有关负摩阻力安全沉降特性等问题及探讨VIP专享

安全度、负摩阻力、沉降特性等问题的探讨*薛江炜 1,2，葛忻声 1，蔡景珞 1,3，杨勇 1(1.太原理工大学建筑工程学院，山西 太原 030024；2.太原市住房与城乡建设委员会，山西 太原；3. 华北科技学院土木工程系，北京)摘要：对高大钊教授提出的有关复合桩基安全度问题进行了回答，讨论表明复合桩基、变刚度调平设计等技术沿袭常规桩基础的构造，在减小用桩量的同时影响到承载的安全度，给岩土工程师带来了道德风险和执业风险，同时探讨了桩伴侣（变刚度调平桩）上部持力层承载力充分发挥、下部持力层承载力充分保障、统一稳定的整体安全度、相对一致的个别安全系数、“止沉”和后期使用安全系数高的沉降特性，建议业内重视桩伴侣的讨论和应用。关键词：复合桩基；安全度；变刚度调平设计；变刚度调平桩；桩伴侣；个别安全系数；止沉；风险；后期使用中图分类号：O 319.56 文献标识码：A 文章编号：1000–6915(2024)01–0001–03THE DISSERTATIONABOUT SAFETY, FRICTIONAL RESISTANCE, SETTLING CHARACTER ON PILE PARTNER (VIRIABLE RIGIDITY PILE) AND ITS VERTICAL REINFORCEMENTXUE Jiang-wei1,2, GE Xin-sheng1, CAI Jingluo1,3, YANG Yong1(1. College of Architecture and Civil Engineering, Taiyuan University of Technology, Taiyuan, Shanxi, 030024, China; 2. Taiyuan Committee of Housing & Municipal and Rural Construction,Taiyuan,China; 3. Department of Civil Engineering, North China Institute of Science and Technology, Beijing, China;)Abstract：In this paper, answered the questions of Professer Gao Dazhaoabout the safety of composite pile foundation, study revealed that following conventional structure of pile foundation, composite pile foundation and variable rigidity designcould cut down on piles but interfere with safety, and bring about moral hazard and practice risk, meanwhile, discussed the pile partner (variable rigidity pile) with its features that bringing out maximum in upper supporting layerpotential of bearing capacity, bottom supporting layer providingsufficient security, stable general safe...