excavation support
3.Based on the practice of deep foundation pit excavation support, design of deep foundation pit support was discussed, the empirical formulas of the designed parameter were given.
6.Construction technique for excavation and support of chambers and tunnels under unfavorable geological condition
7.The author comprehensively demonstrates the construction technique for excavation and support of chambers and tunnels under unfavorable geological condition,taking the construction of headrace tunnel as example.
8.Chengdu Longquan Reixing Engineering Materials Plant Set product development, manufacturing and marketing its products and services into one, through the introduction, absorption, development and production of innovative self-drilling bolt grouting hollow products and exclusive ancillary machinery widely used in underground engineering (Traffic Tunnel, hydraulic tunnels, mine roadway Road and the various uses of Anchorage Support) geotechnical engineering (slope, dike rocks, the deep excavation Anchorage Support) repair Reinforcement Project (tunnels, dikes, dams, housing construction).
9.Based on research results of this project, 3-dimensional model of excavating deep foundation pit are introduced. Combined with FEM software ADINA, the deformation regularity of foundation pit wall in length direction and depth direction in excavation process with support and without support are analyzed.
