突涌时基坑底板临界厚度的计算

Critical bottom thickness calculation of foundation pit in inrushing of soil and water

运用弹性薄板理论,对在施工中发生突涌的基坑进行了分析研究,推导出矩形基坑发生破坏的判别式,得出了矩形基坑底板突涌的相关结论,指出矩形基坑施工在边缘和中心部位应加强保护,以解决基坑的突涌问题。

Utilizing elastic thin plate theory study is made on the foundation pit occur in inrush of soil and water in construction process. The failure discriminant of rectangular foundation pit is derived. Conclusions related to bottom inrushing of soil and water of rectangular foundation pit is obtained. Author point out margin and central parts should be strengthened in construction of rectangular foundation pit to avoid bottom inrushing of soil and water.