【摘要】 为研究在某核废料处置场用深地层注浆固化方法处置中放核废液的可行性,我们在该处置场的两口钻井中进行了水压致裂法原地应力测量。通过原地应力测量,发现处置场区的水平主应力和铅直主应力随深度的增加而线性增加,且σ_H>σ_h>σ_r,说明处置场的地应力状态有利于水平或近水平裂缝的产生和扩展,对用水力压裂法处置核废料是有利的,方法是可行的。更多还原

【Abstract】 In order to assess the feasibility of disposing moderately radioactive liquid nuclear waste in deep strata at a site for nuclear waste disposal by the technique of hydrofracturing and grout injection-solidification ,we have conducted hydrofracturing stress measurements in two boreholes which were located in that site. From the data of in situ stress measurements, we found that the two horizontal principal stresses and the vertical principal stress there increased with depth and σ_H>σ_h>σ_V. Such a state of stress is favorable for the production and propagation of horizontal or sub-horizontal fractures, and is therefore favorable to the disposal of moderately radioactive liquid nuclear waste by the technique of hydrofracturing and grout injection-solidification. The method is feasible.更多还原