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工程建设中广泛采用挡土墙阻止土体的崩塌和滑动。近年来发展了许多新的挡土结构型式,但在利用土重、减小土压力和改善结构受力条件三方面,都尚未充分挖够潜力。笔者在设计成都市龙泉区大田水库土坝枢纽工程中,采用了一种新型减压挡土结构,能最大限度地减小土压力值,又能有效地大量利用土重,而且由于结构受力合理,能充分发挥圬工材料的强度,是一种费省效宏的挡土结构型式。笔者根据工程指挥部的要求,在将原设计的堆石棱体改为刚性挡土结构中,比较了六种刚性挡土结构,采
Retaining walls are widely used in engineering construction to prevent the collapse and sliding of soil. In recent years, many new types of retaining structures have been developed. However, sufficient potential has not yet been tapped in the three aspects of utilizing earth weight, reducing earth pressure, and improving structural stress conditions. In designing the earth dam project of Datian Reservoir in Longquan District of Chengdu City, the author adopted a new type of decompression retaining structure, which can minimize the earth pressure value, and can effectively use a large amount of earth weight, and due to structural stress Reasonable, able to give full play to the strength of the finished material, is a cost-effective macro-retaining structure type. According to the requirements of the engineering headquarters, the author changed the original design of the piled stone prism to a rigid retaining structure and compared six kinds of rigid retaining structures.