Foundation pit inner support stress analysis and design method based on displacement loading method

• Main Authors: NI XIN, LIU YOUXIANG, MA YUN, ZHANG DELE, ZHU JIA, LI SONG, LONG XIAODONG, YI LILI, ZHANG YANG
• Format: Patent
• Language: Chinese; English
• Published: 17.11.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention provides a foundation pit inner support stress analysis and design method based on a displacement loading method, and belongs to the technical field of underground engineering. Calculating a horizontal support stiffness coefficient of the inner support; calculating the horizontal displacement of the enclosure structure at the inner support; according to the method, the horizontal support rigidity coefficient of the inner support is calculated by applying unit normal displacement load, the cooperative displacement of the inner support and an enclosure structure is obtained, then the displacement load is applied to the inner support of the foundation pit by adopting the cooperative displacement, and the inner force and deformation of the inner support of the foundation pit are calculated. The problems that an existing design method is deviated from actual working conditions, and the design error is large are solved. 本发明提供了一种基于位移荷载法的基坑内支撑受力分析及设计方法，属于地下工程技术领域，该方法包括建立基坑内支撑模型；计算内支撑水平支撑刚度系数；计算内支撑处围护结构水