Performance of Floor Slabs in Excavations Using Top-Down Method of Construction and Correction of Inclinometer Readings

Richard N. Hwang ； Za-Chieh Moh

《Journal of GeoEngineering》 2卷3期 (2007/12) Pp. 111-121

https://doi.org/10.6310/jog.2007.2(3).3

並列摘要

The performance of floor systems in two cases in which excavations were carried out using the top-down method of construction is compared and is correlated with the progressive movements of diaphragm walls at the top four floor levels. It has been found that the progressive movements of walls at the first floor level will be limited to 2 mm per stage subsequent to the casting of the slabs for typical basement excavations and, up to, 6 mm for very large sites with flexible floor systems. Inclinometer readings can be corrected by referencing to the movements at the top to make them reasonable.

並列關鍵字

Deep excavation ； toe movement ； top-down construction ； floor slabs