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基坑工程设计中土体的水平抗力系数与开挖时间、空间、地质条件和加固条件、开挖土体所处的深度、护坡土体的宽度等密切相关 ,是基坑开挖时间、空间、地层土性条件、加固条件、环境条件等的函数。为便于工程应用 ,本文通过现场试验实测资料的整理 ,并结合程序反分析和理论研究 ,提出了一种等效水平抗力系数Kh 来综合反映土体抵抗变形的能力 ,并建立了被动抗力K的实用计算方法。
The horizontal resistance coefficient of soils in excavation engineering design is closely related to the excavation time, space, geological conditions and reinforcement conditions, the depth of the excavated soil and the width of the slope protection soil. It is the key point of excavation time, space , Stratigraphic soil conditions, reinforcement conditions, environmental conditions and other functions. In order to facilitate the application of the project, this paper presents an equivalent horizontal resistance coefficient Kh to comprehensively reflect the capability of soil resistance deformation, and establish the passive resistance K by organizing the measured data of the field test, combined with the program inverse analysis and theoretical research. Practical calculation method.