Is there any way to treat the foundation of collapsible loess? Want the best way

Collapsible loess is a kind of foundation that is difficult to treat, and it is not easy to treat it with ordinary piling technology. If you want the best treatment method, it is suggested to use the patent invented by Mr. Si Bingwen-DDC piling method, that is, drilling holes (drilling or punching holes) by machines and tools, and then punching, crushing and squeezing the fillers in the deep part of foundation treatment through the passage with a special heavy hammer, so as to achieve the purpose of strengthening the foundation, removing garbage and ballast soil, and significantly improving the bearing capacity of the foundation. In addition, on the basis of comprehensive foundation treatment technologies such as heavy hammer compaction, dynamic compaction, bored pile, reinforced concrete precast pile, lime-soil pile, gravel pile and double lime pile, it integrates the effects of "high kinetic energy", "high pressure" and "dynamic compaction", which can well eliminate collapse and achieve high bearing capacity. All in all, DDC has a good cost performance.