Compared with conventional bracing technology , not only soil nailing will actively support soil masses , but also interaction effect of soil nailing and soil masses will be mobilized leading to utilize in - site strength of soils to a maximum degree . the disturbed soil masses that originally induce loading effect on bracing structures are transformed into a part of bracing structures . accordingly , the composite soil nailing bracing technique begins to be applied to reinforcement of soft soils or foundations 复合土钉支护技术中,土钉主动支护土体,并与土体共同作用,尽可能保持、利用、提高基坑边壁土体的原有强度,将传统支护方式中对支护结构形成荷载效应的扰动土体转化为支护结构的一部分,从而可以有效地应用于软土地区等特殊地质条件下的基坑支护,而且具有工艺简单、造价低、工期短等优点。