Shandong large transport major pieces of transport reconnection

Project Overview The project is located in Anning grass Town, the Wuhan Iron and Steel (Group) Co., Ltd. to invest in Kunming Iron and Steel, WISDRI Engineering Technology Co., Wuhan Xingyu Management Company Limited Design Engineering Construction Supervision. Local deep excavation depth of about 5-6m, construction pit threats to security, deep excavation construction safety is the top priority of construction, how to ensure security is the focus of deep construction pit construction. . Frame shear wall structure, caps infrastructure, building structural safety rating of 2, fire resistance rating of two. According to the detailed survey report and on the basis of "geotechnical engineering specifications" (GB50021-2001) (2009 Edition) Table 12.2.1 - 12.2.4 Evaluation of the evaluation criteria, the field of groundwater to the concrete structure with weak corrosive to steel The reinforced concrete structure micro corrosion. Second, hydrogeological conditions and their impact on the excavation: the site each rock plain fill ○ 1 absorb water; silt clay (Q4d1) ○ 2, ○ 3 strongly weathered sandy mudstone permeability; the weathered sandy shale (S) ○ 4, weathered siltstone ○ 5 permeability weak; underground water in rock fractures, mainly occurs in weathered rock, groundwater recharge mainly precipitation, according to the Geological Survey report groundwater stable water depth in easily excreted after 8.6-11.7 meters (equivalent elevation -8.1-11.3 meters) of water in general, according to local experience, rock crevice water to take appropriate drainage measures. According to the survey visit folk do not send residents know about the history of the highest level (relative elevation -6.0 m)