土钉墙支护方式与地质条件协调性探讨

Discussion on Supporting Patterns of Soil Nailing Wall and Their Suitability with Geological Conditions

复杂地质条件下的基坑工程,由于破坏机理的复杂性使得土钉墙技术的应用受到一定的限制和制约,甚至发生一些工程事故。本文针对武汉地区不同的地质条件,选取典型的、成功的土钉墙实例,探讨地质条件不同对支护方式的影响等概念性问题,期望在实际工程中,针对具体的地质情况,将有更多经济、安全、新颖的土钉墙方式在实际工程中得到应用。

The application scope of soil-nailing technique is restricted and limited in the area of deep excavations due to its complicated failure mechanism under the complex geological conditions and sometimes the accidents of soil-nailing wall collapse happen. Based on some typical and successful designs of soil-nailing walls in Wuhan area the conceptual issues for the suitability of supporting patterns of the wall to the geological variety are discussed. In terms of the different geological conditions, the more safe, economical and innovative schemes for soil-nailing wall are expected to be applied in deep excavations;