Geomembranes are an important component of modern engineered barriers to prevent the infiltration of stormwater and runoff into contaminated soil and rock as well as waste containment facilities--a function generally described as a geomembrane cover. This paper presents a case history involving a novel implementation of a geomembrane cover system. Due to this novelty, the design engineers neede...

Geological storage is an important concept for high-level radioactive waste (HLW) disposal, and detailed studies are required to protect the environment from contamination by radionuclides. This paper presents a series of geomechanical studies on the site selection for HLW disposal in the Alxa area of China. Surface investigation in the field and RQD analyses on the drill cores are carried out ...

Rock salt represents a potential host rock formation for the final disposal of radioactive waste. The interactions between indigenous microorganisms and radionuclides, e.g. uranium, need to be investigated to better predict the influence of microorganisms on the safety assessment of the repository. Hence, the association process of uranium with two microorganisms isolated from rock salt was com...

Reuse of stone powder formed in the production manufactured sand is great significance to environmental protection and resource utilization. In this paper, waste calcareous rock line was added into concrete by 6%, 9%, 12% 15%, total weight controlled be constant prepare C30 C40 environment-friendly concrete. The influence on compressive strength transmission performance analyzed. It found that ...

Prediction of drainage quantity and quality is critical to reduce the environmental risks associated with weathering mine waste rock. Reactive transport models can be effective tools understand disentangle processes underlying waste-rock drainage, but their validity applicability impaired by poor parametrization non-uniqueness conundrum. Here, a process-based multicomponent reactive model prese...