| The soil nailing technique to the excavation of the top construction have been applied in nearly several years in many large and middle cities and the opened cities along the coast in our countries, it has an deep and long effect on design and building of the excavation. The soil nailing technique develops quickly because of its light structure, fexibility, as well as easy and fast and obvious economic effect. But the design and building of soil nailing must adapt the working method to local conditions, it is complex in the conditions of hydrology and geology at an area of level ground, characteristic of construction near the vacation and piping's in the underground. Since the building technique is applied in Wenzhou, several projects have been completed such as Song Tai1-2# district, the second project of Overseas Chinese Hotel, the fifteenth district at Jie Fang Nan road,the sixth district at theXin He road ,Fang Zheng district and so on. This techniques have led to the good economical and social efficacy.Directing towards the soft soil and the rich under-ground water, this paper discusses the application about the technique of the soil nailing design and building in Wenzhou's old city district by slumping the practices.The work include the following items:①summary and analysis of the character and the development of soiling nailing techinique home and abroad.②Analysis of the constitution, merits and faults of the soil nailing technique were③Study of the design and construction of the soil nailing technique④Site test and monitor on the soil nailing technique⑤Based on specific engineering, the special problems in the engineering and the settle methods were introduced. |
