1 General Provision
1.0.1 This Code is formulated with a view to standardizing engineering geological investigation work of water resources and hydropower, defining investigation work depth and requirements, as well as ensuring investigation work quality.
1.0.2 This Code is applicable to large-scale engineering geological investigation work of water resources and hydropower.
1.0.3 Engineering geological investigation of water resources and hydropower should be classified into such phases as planning, project proposal, feasibility study, preliminary design, bidding design and construction details design. Investigation work at project proposal phase should basically satisfy the depth requirements of feasibility study phase.
1.0.4 Danger release and strengthening engineering investigation for dangerously weak reservoir should be classified into such three phases as safety evaluation, feasibility study and preliminary design.
1.0.5 Engineering geological investigation of water resources and hydropower shall comply with not only this Code but also those stipulated in the current relevant ones of the nation.
2 Terms and Symbols
2.1 Terms
2.1.1 Active fault
The fault with activities that has been formed since the Late Pleistocene epoch (100,000 years)
2.1.2 Reservoir leakage
The phenomenon that water body leaks from the reservoir through the rock-soil mass in the reservoir basin to outside, thus losing water.
