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我国幅员辽阔,各地区地质情况千差万别。随着基本建设的迅速发展,建筑活动区域不断扩大,在实际工程中对处理各种不同地质现象的问题亦日益增多,如软土、冻土、湿陷性黄土、溶岩土洞、膨胀土等,都是国内比较典型的不良地质,这种复杂的地质情况就决定了我国地基加固技术必然向着多样化方向发展。我国是发展中国家,经济与物质条件都较薄弱,地基加固的各种新技术、新工艺的开发应用都必须符合我国的具体情况。地基加固对整个工程技术经济有着重大的影响,根据某些地区的统计资料反映,在一般情况下,地基处理费用约占工程总造价的1/4左右;地基、基础工程的工期约占总工期1/3左右,在个别情况下甚至更大。
China has a vast territory and the geological conditions vary from region to region. With the rapid development of basic construction, the area of construction activities has been continuously expanding, and problems in handling various geological phenomena are increasing in practical projects, such as soft soil, frozen soil, collapsible loess, karst caves, expansive soil, etc. These are all typical negative geology in China. This complex geological situation has determined that China’s foundation strengthening technology will inevitably develop towards diversification. China is a developing country and its economic and material conditions are relatively weak. The development and application of various new technologies and new processes for strengthening the ground must conform to the specific conditions in China. Ground reinforcement has a major impact on the entire project’s technical economy. According to statistical data in some areas, the cost of foundation treatment accounts for about one-fourth of the total project cost, and the duration of the foundation and foundation projects accounts for the total duration. About 1/3, or even larger in individual cases.