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1. 发明专利

JPS6375219A PILE DRIVING WORK BY OFFSHORE WORKING PLATFORM 失效
公开(公告)号：JPS6375219A
公开(公告)日：1988-04-05
申请号：JP21603986
申请日：1986-09-16
申请人： KAJIMA CORP
发明人： TAKAGI JUNICHI , WAKAHARA YOSHIO , YOSHIDA YASUHISA , ISHIKAWA KIYOSHI , TERUNUMA TOSHIYUKI
IPC分类号： E02D7/16
摘要： PURPOSE:To make an offshore working platform compact as well as raise the efficiency of operations by a method in which the leader of a pile driver is extended from the offshore working platform to sea surface and turned and a pile is driven at an optional angle in an optional direction on an optional place. CONSTITUTION:An offshore working platform 1 consists of a running base 5 on paired rails along the board side of the platform 1, girders 6 movable in the direction of crossing the rails on the base 5, a traverse base 7 movable in the same direction as the girders 6, a slewing base 8 attached to the base 7, and a leader 9 erected through a back stay 10. The base 5 is traveled, the girders 6 are moved to the board side and fixed to the platform 1, and the base 7 is moved and extended from the board side to sea surface. The slewing base 8 is turned, the back stay 10 is adjusted, and a pile 17 is driven. The pile 17 can thus be driven at an optional angle in an optional direction on an optional place.

2. 发明专利

JPS61221415A DEFORMATION PREVENTER FOR SKEW PILE BEING DRIVEN 失效
公开(公告)号：JPS61221415A
公开(公告)日：1986-10-01
申请号：JP5856485
申请日：1985-03-25
申请人： KAJIMA CORP
发明人： YOSHINO YUICHI , TAKAHASHI SHINOBU , TAKAGI JUNICHI
IPC分类号： E02D5/28 , E02D7/16 , E02D13/00 , E02D13/04
摘要： PURPOSE:To driven a steel tubular pile at a given inclined angle by a method in which a float is inserted into the steel tubular pile and a means to move the float to the axial direction of the pile is provided. CONSTITUTION:The wire 23 of a moving means 20 is wound up, a pulling-up wire 24 is paid out, and a float 10 is fixed from a template 3 to the position of L2. A steel tubular pile 1 is put into sea and driven into the seabed ground, the wire 24 is wound up, and the wire 23 is paid out to remove the float 10 from the pile 1. Both the wires 23 and 24 are removed out of the float 10, and the float 10 is removed out from the pile 1. The buoyancy of the float 10 is balanced with the weight of the pile 1, and thereby the flexion of the pile 1 is prevented and the reaction force of a guide mechanism for the pile 1 is relieved. The pile can thus be driven at a given inclined angle.

3. 发明专利

JPS61221413A SKEW PILE DRIVING WORK 失效
公开(公告)号：JPS61221413A
公开(公告)日：1986-10-01
申请号：JP5856585
申请日：1985-03-25
申请人： KAJIMA CORP
发明人： YOSHINO YUICHI , TAKAGI JUNICHI
IPC分类号： E02D5/38 , E02D5/54 , E02D7/00
摘要： PURPOSE:To prevent the degradation of the wall of an excavated pit by a method in which the ground is excavated by a bit of expanded diameter within a steel tubular pile, the diameter of the bit is contracted, and an anchor pile is forcibly penetrated into the excavated pit. CONSTITUTION:A steel tubular pile 1 is driven at a given inclined angle to a rockbed B into a deposit layer A, and an excavator 10 is inserted into the pile 1. A pit 13 of expanded diameter is penetrated through the layer A and the rockbed B and excavation is made to a given depth. The diameter of the bit 13 is contracted, a jack is also contracted, and an anchor pile 4 is penetrated into the excavated pit D. While the diameter of the bit 13 is contracted, excavation is made, and the pile 4 is repeatedly penetrated until the degradation of the pit D is stopped. The diameter of the bit 13 is then expanded, and while repeating the execution of excavation and the penetration of the pile 4, the pile 4 is forcibly penetrated to a given depth. After the excavator 10 is removed, cement mortar C is packed into the space between the pile 4, the rockbed B, and the pile 1 and also into the inside of the pile 1.

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