公开(公告)号：US4643617A

公开(公告)日：1987-02-17

申请号：US731889

申请日：1985-05-08

申请人： Haruki Kanno ,  Hidekazu Tsuyoshi ,  Kou Nishinakagawa ,  Makoto Hara ,  Tetsuo Mochida ,  Tsugio Hisaka ,  Munekazu Miyaki ,  Minoru Kawarada ,  Hideaki Kawarabayashi

发明人： Haruki Kanno ,  Hidekazu Tsuyoshi ,  Kou Nishinakagawa ,  Makoto Hara ,  Tetsuo Mochida ,  Tsugio Hisaka ,  Munekazu Miyaki ,  Minoru Kawarada ,  Hideaki Kawarabayashi

IPC分类号： E02D15/08 ,  E02D3/12 ,  E02D15/10 ,  E02D23/02 ,  E02D27/18 ,  E02D27/26 ,  E02D27/30 ,  E02D27/52 ,  E02D3/00

CPC分类号： E02D3/12 ,  E02D27/18 ,  E02D27/26 ,  E02D27/30

摘要： A seabed mound creating method suitable for a construction of a large scale offshore structure comprises the steps of setting up a plurality of sheet piles along the outer periphery of a mound creation region in a seabed area of soft ground to form an earth-retaining wall projecting from the seabed, and raising the ground level of the seabed within the earth-retaining wall by depositing soft soil into the earth-retaining wall to heap the deposited soil to a predetermined height. The method further comprises the step of implementing a ground improvement process to both the heaped-up soft soil and the soft ground of the seabed within the earth-retaining wall so that the ground improvement process is provided to a predetermined depth below the seabed, thus to form a seabed mound integral with the improved ground. The seabed mound may be provided at the upper portion with a projection area serving as a shear key with respect to a horizontal external force. Such a seabed mound can eliminate difficulty in supplying mound materials even when constructing a structure in an offshore area. When the ground improvement process is equally implemented to both a seabed ground and the heaped up soft soil, the seabed integrally formed with the improved ground can be created. Thus, a great shear strength due to such an integral structure can resist a horizontal external force, thereby ensuring high security.

摘要翻译： 一种适用于大型海上结构建设的海床土墩制造方法，其特征在于包括沿着软土地层的墩形成区域的外周设置多张板桩，形成突出的挡土墙 通过将土壤中的软土沉积到挡土墙中，将沉积的土壤堆积到预定的高度，从而提高了挡土墙内海底的地面水平。 该方法还包括对地板保持墙内堆积的软土和海底软土进行地面改良处理的步骤，以便将地面改良过程提供到海底以下的预定深度，从而 形成与改良的地面一体的海床土堆。 可以在上部设置海底土墩，其具有相对于水平外力作为剪切键的投影区域。 即使在近海地区构造结构，这样的海底堆垛也可以消除堆垛材料的供应困难。 当地面改善过程同时实施到海床地面和堆积的软土时，可以形成与改进的地面一体形成的海床。 因此，由于这种整体结构而产生的很大的剪切强度可以抵抗水平的外力，从而确保高的安全性。