(深圳市华阳国际工程设计股份有限公司， 深圳 518038)

摘要: 探讨了«高层建筑混凝土结构技术规程»(JGJ 3—2010)、«建筑地基基础设计规范»(GB 50007—2011)关于高层建筑基础埋置深度的规定存在的问题。 指出基础埋置深度不仅仅与建筑的高度有关，还应与建筑的体型、高宽比、地基土质、风荷载、地震设防烈度等有关；当高层建筑基础埋置深度不满足上述规范的要求时，应验算抗倾覆稳定性和抗滑移稳定性，并采取可靠的抗倾覆和抗滑移措施；当高层建筑基底零应力区范围满足«高层建筑混凝土结构技术规程»(JGJ 3—2010)的要求时，抗倾覆稳定性具有足够的安全储备。 最后建议对基础埋置深度不宜作硬性规定，而宜根据各种实际情况来具体考虑。

关键词: 高层建筑；基础埋置深度；抗倾覆稳定性；抗滑移稳定性；零应力区

中图分类号:TU398. 7 文献标志码:A 文章编号:1002￣848X(2022)01￣0127￣06

DOI:10. 19701 / j. jzjg. LS210038

Research on embedded depth of foundation of tall building

WANG Guo′an

(Shenzhen Capol International & Associates Co.， Ltd.， Shenzhen 518038， China)

Abstract: The problems existing in the regulation of embedded depth of foundation of tall building in the Technicalspecification for concrete structures of tall building (JGJ 3—2010) and Code for design of building foundation (GB 50007—2011) were discussed. It was pointed out that the embedded depth of foundation should not only be related to the height ofthe building， but also to the size of the building， the ratio of height to width， the soil quality of the foundation， the windload， the seismic fortification intensity and so on. When the embedded depth of foundation of tall building does not meet therequirements of the specification described above， the anti￣overturning stability and anti￣slip stability should be checked，and reliable anti￣overturning and anti￣slip measures should be taken. When the range of zero stress zone in the foundation oftall building meets the requirements of Technical specification for concrete structures of tall building ( JGJ 3—2010)， theanti￣overturning stability has enough safety reserve. Finally， it is suggested that the embedded depth of foundation shouldbe considered according to various practical situations instead of making a rigid regulation.

Keywords:tall building；embedded depth of foundation；anti￣overturning stability；anti￣sliding stability；zero stress zone

第一作者:王国安，学士，教授级高级工程师，一级注册结构工程师，主要从事建筑结构设计，Email:wangguoan @ capol. cn。

[引用本文] 王国安. 高层建筑基础埋置深度研究[ J]. 建筑结构，2022，52( 1):127￣132，126. WANG Guo′an.Research on embedded depth of foundation of tall building[J]. Building Structure，2022，52(1):127￣132，126.