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一、前言大阪港自1786年7月开港至今,已有200年的历史。特别当今南港的都市港的形成,大阪港更引人注目,是日本一个重要的国际和国内贸易的水陆运输枢纽,业已成为一个自然与文化、生活与经济相协调的新型港湾城市。大阪港现有192个泊位,一年进港的船舶数达80600艘次,吞吐量为8820万吨(见图1)。大阪港位于日本关西地区大阪湾处,海底土质软弱,构成港口主要组成部分的南港与北港,都是围填造陆而成,因此地基处理是该港建设中的一个重要问题。大阪港在软基处理中,依据本港的现状,结合各种软基处理方法,使地基能充分满足上部建筑物的需要。该港在软基处理方面的特点有:(一)地基处理中,使用多种加固技术。由于该港区土质软弱,根据上部各种构筑物和建筑物各不相同的要求,使用了多种的地基处理方法:有用大口径的砂井排水工
I. INTRODUCTION Since its opening in July 1786, Osaka Port has a history of 200 years. The formation of an urban port in Nankang, particularly in today’s Nankang, is even more striking. Osaka Port is an important land and water transport hub for international and domestic trade in Japan. It has become a new type of harbor city coordinated with nature, culture, life, and economy. Osaka Port has 192 berths. The number of vessels entering Hong Kong in one year reaches 80,600 and the throughput is 88.2 million tons (see Figure 1). Osaka Port is located in Osaka Bay in the Kansai region of Japan. The submarine soil is weak. Both Nangang and Beigang, which are the main components of the port, are made of landfills. Therefore, foundation treatment is an important issue in the construction of the port. In the processing of the soft ground, Osaka Port is based on the current situation in Hong Kong and combines various soft ground treatment methods so that the foundation can fully meet the needs of the upper buildings. The characteristics of the soft ground treatment in Hong Kong are as follows: (a) In the foundation treatment, various reinforcement technologies are used. Due to the soft soil in the port area, a variety of foundation treatment methods have been used according to the various requirements for various types of structures and buildings in the upper part: large-caliber sand well drainers