Design andEffectiveness Evaluation of Ventilation Shaft Support for Foundation Pits
To ensure the construction safety of the foundation pit shaft,this article combines the results of the shaft survey,and based on its support design,further combines the results of on-site deformation monitoring to evaluate its support effect through deformation prediction.The analysis results indicate that the deformation control requirements for the vertical shaft of the foundation pit are relatively high.The support scheme is designed as"steel grid+steel mesh+sprayed concrete+water blocking grouting";Meanwhile,through deformation prediction,the rate of increase in the later stage of the foundation pit shaft is relatively small,and the deformation tends to stabilize.The predicted values are all smaller than the deformation control values,indicating that the support design of the foundation pit shaft is reasonable and effective,accumula-ting experience for similar projects.
Vertical shaft of foundation pitSupport designDeformation predictionImpact assessment
国家科技期刊平台
NSTL
万方数据
