摘要：In the design and construction process of the foundation treatment of an example power plant, the content of chloride and sulphate ions in the groundwater in this area is tens to hundreds of times the content of other normal areas, which makes the corrosion damage more rapid. The residual strength of concrete after 8-20 years is only 5% to 10% of the original design strength, which will be a terrible consequence, meanwhile making it no longer possible to use concrete drilled cast-in-place piles for foundation treatment. For the dynamic compaction-soil replacement foundation treatment method, first, dynamic compaction is applied for the treatment of foundation, then the soil under the foundation with a thickness of 2m is excavated, and backfilled with graded crushed stones, layered rolling is conducted so as to ensure the compactness. With this method, the requirement for the quality of the bearing capacity of the foundation can be met, and the cost is economical and reasonable. The overall construction period is not too long, the destructive effect of the saline soil is avoided, and there is no need to worry about the corrosion effect of chloride ions and sulphate ions.
