[Column] What is the Elneed method that reduces quality, cost, and environmental impact?

What is the Elneed method that reduces quality, cost, and environmental impact?

In ground improvement work on site, we will explain the differences between other methods and the "El Nido Method" from two perspectives this time. ▼Difference 1: Soil Disposal and Environmental Consideration▼ For example, in columnar improvement, it is common for the excavated soil to be discarded. As a result, the leftover soil is often treated as industrial waste, leading to increased disposal costs and greater environmental impact. On the other hand, the El Nido Method reuses the soil generated on site during excavation. The amount of leftover soil is about 35% for cohesive soil, and nearly zero for sandy ground. ▼Difference 2: Quality Control that Allows for "Direct Achievement" of Target Strength▼ In many ground improvement methods, there tends to be a significant difference between pre-mixing tests and actual on-site strength, necessitating a large safety factor due to variability in strength. For example, in conventional methods, the ratio of [on-site test specimen strength / pre-mixing test strength] is typically around 0.2 to 0.8. (Note: The "=" here indicates a range, so please recognize it as "nearly equal.") However, with the El Nido Method, we achieve [test specimen strength / mixing test strength ≧ 1.0]. In other words, the strength obtained on site is equal to or greater than that from the pre-laboratory tests.

Ground foundation construction method