Study On Application Of Forepoling Bolts With Soil Nailing Protection In Soft Soil Layer

In this paper, the forepoling bolts with soil nailing are studied. The main points of this thesis are as the following :1. To Review the composition and construction of composite soil nailing protection,and to analyze its engineering characteristics of the main form construction, its method and techniques characteristic.2. Under the postulate of slippage of circular, slippage of soil, which is limited inthe bottom of the foundation pit, is considered as the main cause of foundation pit's breakage that is originally thought secure.3. According to the postulate of slippage of circular, the program is compiled. Thisprogram is used to analyzed factors of stability of the root of foundation pits.4. The mechanism of forepoling bolts is studied. A program is compiled, which isused to analyzed factors of stability of forepoling bolts with soil nailing protection.5. Under the idea that slippage of soil which is limited in the bottom of thefoundation pit is one of the main causes of foundation pit's breakage, a design measure of forepoling bolts with soil nailing protection in soft soil layer is advanced.