《基坑开挖支护》PPT课件.ppt
《《基坑开挖支护》PPT课件.ppt》由会员分享,可在线阅读,更多相关《《基坑开挖支护》PPT课件.ppt(21页珍藏版)》请在得力文库 - 分享文档赚钱的网站上搜索。
1、 Federal Waterways Engineering and Research InstituteUniversity of Wuppertal Institute for Geotechnical EngineeringApplication of PFC3Application of PFC3D D for determination of soil properties and for determination of soil properties and simulation of the excavation process in front of simulation o
2、f the excavation process in front of sheet pile wall constructionssheet pile wall constructions 1 Federal Waterways Engineering and Research InstituteUniversity of Wuppertal Institute for Geotechnical Engineering 2Content-Reproducible numerical soil properties-Ball parameters for specific soils-Simu
3、lation of the excavation process in front of sheet pile wall constructions -unsupported -single supported -single supported with a plastic hinge -Conclusions Federal Waterways Engineering and Research InstituteUniversity of Wuppertal Institute for Geotechnical Engineering 3Reproducibility of soil pa
4、rameters1.Reproducibility 2.Ball parameters 3.Sheet pile wall simulations 4.Conclusions (pore content and inner friction angle of granular soils)W/H/D=4.70/3.00/0.60 mW=H=D=2.14 msoil balls d=0.20 m Federal Waterways Engineering and Research InstituteUniversity of Wuppertal Institute for Geotechnica
5、l Engineering 4Reproducible pore contentslender containermean pore content=0.4011 1.Reproducibility 2.Ball parameters 3.Sheet pile wall simulations 4.Conclusions square containermean pore content=0.4016 variation coefficient=0.005 Federal Waterways Engineering and Research InstituteUniversity of Wup
6、pertal Institute for Geotechnical Engineering5Reproducible inner friction angle at restslender containermean inner friction angle=26.3/27.1variation coefficient=0.148/0.230k0=2 E0/(h2 t)k0=1 sin 1.Reproducibility 2.Ball parameters 3.Sheet pile wall simulations 4.Conclusions square containermean inne
7、r friction angle=32.3/32.0variation coefficient=0.053/0.059 Federal Waterways Engineering and Research InstituteUniversity of Wuppertal Institute for Geotechnical Engineering6Reproducibilitypore content 1.Reproducibility 2.Ball parameters 3.Sheet pile wall simulations 4.Conclusions inner friction an
8、gleFor low stochastic effects on the results:15 balls in a row mathematically on one confining wall.Federal Waterways Engineering and Research InstituteUniversity of Wuppertal Institute for Geotechnical Engineering7Ball parameters at 1g levelgranular soils:=30-40;n=0.400ball diameters d=2 mm-20 cmcu
9、bic containers wall lengths 15 x d-25 x dslender containers wall depths 15 x dheights&lengths of 25 x d-30 x d1.Reproducibility 2.Ball parameters 3.Sheet pile wall simulations 4.Conclusions Federal Waterways Engineering and Research InstituteUniversity of Wuppertal Institute for Geotechnical Enginee
10、ring8Cubic container15 x d;=30;n=0.400pouring and restks_pour=715.18 br 2.0259sf_rest=0.30 0.35sf_pour=0.21.Reproducibility 2.Ball parameters 3.Sheet pile wall simulations 4.Conclusions nks_act=1E5 kN/msf_act_move=0.40 0.45active earth pressure Federal Waterways Engineering and Research InstituteUni
11、versity of Wuppertal Institute for Geotechnical Engineering9Cubic container15 x d;sf_rest-sf_act_move-ks_act kN/m300.30 0.350.40 0.458E4 5E5350.60 0.700.90 1.10 8E4 2E5404.5 6.03.5 4.58E3 2E5sf_rest=0.00009 e 0.2659 sf_act_move=0.0006 e 0.2185 ks_act=1E5 kN/m 1.Reproducibility 2.Ball parameters 3.Sh
12、eet pile wall simulations 4.Conclusions Federal Waterways Engineering and Research InstituteUniversity of Wuppertal Institute for Geotechnical Engineering10ball parameters=30=35=40containersizecontainer-shape15 x dcubic-20 x dcubic-25 x dcubic15 x d/25 x dslender-15 x d/30 x dslender1.Reproducibilit
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 基坑开挖支护 基坑 开挖 支护 PPT 课件
限制150内