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1. 发明专利

JPS59420A Construction of pile reduced negative friction force 失效
标题翻译：减少减负摩擦力的构造
公开(公告)号：JPS59420A
公开(公告)日：1984-01-05
申请号：JP10766682
申请日：1982-06-24
申请人： Nippon Kokan Kk
发明人： TANAKA SHIGEO , SHIYOUNO YASUYUKI , KASUGA MASAMI
IPC分类号： E02D5/60 , E02D31/00
CPC分类号： E02D5/60
摘要： PURPOSE:To reduce negative friction forces to act on a pile while exhibiting a negtive friction force-reducing effect by a method in which only the surface of a pile in contact with soft ground is covered with a negative friction force- reducing cover and also a specific grout is injected into the apertures between the cover and the ground layer. CONSTITUTION:When penetrating a steel tubular pile 1 into a pit 2 previously drilled, the surface of the pile 1 in the face of soft ground 7 is referred to as a negative friction force-reducing cover portion 3, and the surface of the pile 1 in the face of an intermediate layer 8 and a fixed support layer 9 is referred to as a non-cover portion 4. The layer 9 is solidified by cement milk 10 for foot protection, and the void portion around the pile 1 in the face of the layer 8 is fixed with a solidifying liquid 11 which exhibits almost the same uniaxial compressive strength as that of the layer 8 when hardened. Also, a solidifying liquid 13 which exhibits a strength smaller than that of the layer 7 when hardened is injected into the surrounding area of the part 3 for fixation. Thereby, even when the layer 7 undergoes ground subsidence by consolidation, a deviation easily occurs in relation to the pile 1.
摘要翻译：目的：为了减少作用在桩上的负摩擦力，同时通过以下方法显示出不利的摩擦力减小效果：只有与软地面接触的桩的表面被负的摩擦力减小罩覆盖，并且还将特定的浆料注入到盖和接地层之间的孔中。构成：当将钢管桩1穿入预先钻出的坑2中时，将软土地面7的桩1的表面称为负的摩擦力减小覆盖部分3，并且桩1的表面在中间层8的表面和固定的支撑层9被称为非覆盖部分4.层9由用于脚部保护的水泥乳10固化，并且面板1周围的桩1周围的空隙部分层8用固化液11固定，固化液体11在硬化时表现出与层8几乎相同的单轴抗压强度。此外，当硬化时表现出比层7的强度小的强度的固化液13注入到用于固定的部件3的周围区域中。因此，即使当层7通过固结进行地面沉降时，相对于桩1也容易发生偏差。

2. 发明专利

JPS58207416A Steel pile for hard ground 失效
标题翻译：用于硬接地的钢筋
公开(公告)号：JPS58207416A
公开(公告)日：1983-12-02
申请号：JP8893982
申请日：1982-05-27
申请人： Nippon Kokan Kk
发明人： TANAKA SHIGEO , TAKANO MORIKUNI , KASUGA MASAMI , NAKAJIMA TAKAHIRO
IPC分类号： E02D5/28 , E02D5/72
CPC分类号： E02D5/28
摘要： PURPOSE:To drive a steel pile into hard ground without causing the crushing or abrasion of the tip portion of the pile by attaching a shoe made of a steel material having a high strength and a high wear resistance to the tip of the pile body. CONSTITUTION:A shoe 5 made of a steel material having a high strength and a high wear resistance, e.g., high-carbon and high-manganese steel or blister steel, is welded to the tip of a pile body 1, for example. The preferred high-C and high-Mn steels are preferably ones containing 0.50-1.20wt% C and 10-20wt% Mn and having a tensile strength of 75kg/mm. or more, which is subjected to work hardening. When a cemented steel is used, the preferred steels are ones containing 0.5% or more carbon and having a Vickers hardness of 400 or more.
摘要翻译：目的：通过将由具有高强度和高耐磨性的钢材制成的鞋子附接到桩体的尖端，将钢桩驱动到硬地面而不引起桩的顶端部的破碎或磨损。构成：例如，将高强度，高耐磨性的钢材例如高碳钢，高锰钢或起泡钢制成的鞋5焊接到桩体1的前端。优选的高C和高Mn钢优选为含有0.50-1.20wt％C和10-20wt％Mn的拉伸强度为75kg / mm 2以上的钢，其进行加工硬化。当使用胶结钢时，优选的钢是含有0.5％或更多碳并且维氏硬度为400或更高的钢。

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