求翻译：换填垫层法。换填垫层法主要作用是提高地基的承载力。其方法是将基底下一定范围内的软弱土挖去，换填砂、碎石和素土等散体料，并分层夯实成低压缩性的地基持力层。   是什么意思？

Replacement cushion method. Replacement cushion method main role is to improve the bearing capacity of foundation. The method is to base the next within a certain range of soft soil dredged, for filling sand, gravel and soil factors such as granular materials, and stratified into low compression rei

Food-for-filled mattress. Food-for-filled mattress Law Foundation's primary role is to enhance endurance. Their method is to the substrate within a certain scope of the weak and dredged, sand, gravel and quality-for-reclamation and scattered information integration, and flatted forges into low compr

Trades fills in the breaker strip law.Trades fills in the breaker strip law main function is enhances the ground the supporting capacity.Its method is in the certain scope weak earth digs the basis under, trades plain prose materials and so on the sanding-up, crushed stone and element earth, and the

Replacement cushion method. Main role is to improve the replacement cushion method of bearing capacity of Foundation. Its method is within a certain range of soft-soil be dredged under the basement, replacement loose material such as sand, gravel and sutu and layered rammed into the low compressibil

Change and fill out one layer of laws of cushion. It is to improve bearing the weight of the strength of the foundation to change and fill out one layer of main function in France of cushion. Its method until weak soil in a certain limit dig go under base, transfer to and fill out material of prose