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1. 发明专利

JP4415409B2 Production method of jacking method for hume pipe using the rebar cage and this rebar cage of jacking method for hume pipe 有权
公开(公告)号：JP4415409B2
公开(公告)日：2010-02-17
申请号：JP2003271263
申请日：2003-07-07
申请人：藤村ヒューム管株式会社
发明人：貴光田澤
IPC分类号： B28B23/20 , E21D9/06 , B28B21/30

2. 发明专利

JPH091535A SUPPORTING APPARATUS FOR SQUARE STEEL TUBE IN FORM 失效
公开(公告)号：JPH091535A
公开(公告)日：1997-01-07
申请号：JP15141395
申请日：1995-06-19
申请人： ASAHI CHEMICAL IND
发明人： EBIHARA YASUSHI
IPC分类号： B28B21/58 , B28B21/80 , B28B23/20
摘要： PURPOSE: To make it possible to support a square steel tube without molding failure such as irregular thickness or noise at the time of centrifugal molding by constituting the support members on a diagonal line provided at the positions corresponding to the split parts of a form from the center to the right and left at the L-shaped support surface, and constituting the L-shaped support surface when the form is united. CONSTITUTION: The form 1 of split centrifugal molding is divided into upper and lower forms 1a and 1b. Four support members 2 for supporting the corners of a square steel tube 3 are provided in the circumferential direction of the form 1, and a plurality are provided at an equal interval in an axially longitudinal direction. The members 2 for an L-shaped support surface 1a, thereby supporting the four corners of the tube 3. The upper and lower members 2 on the diagonal line are so oppositely disposed as to form a V-shaped trough part between the both on a base 13 at the two L-shaped members 9. The two members 2 are formed of two blocks 10 split from the center of the L-shaped support surface 2a, and when the forms are united, the L-shaped support surface is constituted.

3. 发明专利

JPH0740329A PRODUCTION OF GLAZED CONCRETE PRODUCT 失效
公开(公告)号：JPH0740329A
公开(公告)日：1995-02-10
申请号：JP18988893
申请日：1993-07-30
申请人： NAT HOUSE IND
发明人： KITAGAWA SATOSHI , TORII MASAYOSHI
IPC分类号： B28B11/00 , B28B21/68 , B28B21/92 , B28B23/02 , B28B23/20 , C04B41/65 , E04C3/20 , E04C3/34
摘要： PURPOSE:To prevent an occurrence of a crack in a concrete by a method wherein when a centrifugally molded concrete substrate is glazed on the surface thereof and burned, a wire gauze cylindrically wound is peripherally movably hooked at the vicinity of the both ends thereof and embedded in the concrete substrate. CONSTITUTION:A wire gauze 1 made of a lath substrate material is loosely bound by wires 2 at the vicinity of the both ends thereof so that the both ends can be moved to each other by 30-50mm. The wire gauze 1 is set in a form, and a concrete material is uniformly poured and centrifugally molded. After the molded piece is removed, the molded piece is glazed on the surface thereof and burned. In this manner, the concrete substrate is hardly affected by an expansion strain of the wire gauze 1 at the time of burning. in addition, the concrete substrate can be reinforced by the wire gauze 1 for the application of an external force. Therefore, an occurrence of a crack can be prevented.

4. 发明专利

JPH03275305A MANUFACTURE OF PRECAST CONCRETE SYNTHETIC BEAM 失效
公开(公告)号：JPH03275305A
公开(公告)日：1991-12-06
申请号：JP7549090
申请日：1990-03-27
申请人： TAISEI CORP
发明人： TAMURA KOICHI , SATO TATSUO , UEDA KAZUO
IPC分类号： B28B1/20 , B28B7/16 , B28B23/20 , E04C3/20
摘要： PURPOSE:To contrive shortening of a term of works and labor-saving by making manufacturing simple and accurate, by a method wherein a lip part and beam main rod of an iron reinforcing member are set up within a centrifugal molding concrete shuttering by positioning them respectively in the inside and a corner part, concrete is placed, compacted by centrifugal force and molded and an intermediate part of split rib rods is cut off from the split rib rods. CONSTITUTION:Four C-shaped bent bodies are fixed to corners each of a square concrete shuttering 5 inscribing in a cylindrical centrifugal molding concrete shuttering 4 with a binding metal 7 through an L-shaped corner inside concrete shuttering 6 which is parallel to two sides of rib rod 1, which are adjoining to each other by placing a main rod between them. Then concrete is loaded into the square concrete shuttering 5 and after the concrete is compacted by centrifugal force by turning molding concrete shuttering 5, the same is released from a mold. A square framelike concrete body 8 is molded, which is cut at a boundary part 9 of the rib rods 1 adjoining to each other. Then four L-shaped precast concrete blocks 10 is produced where the rib rod 1 split into two is projected from the top of a vertical part piece and the inside of the lower part, and the main rod 2 of a corner part of the lower end of a beam is projected from both end faces in a longitudinal direction of the vertical part piece.

5. 发明专利

JP4502478B2 Underground structure for the block body and how the centrifugal molding 有权
公开(公告)号：JP4502478B2
公开(公告)日：2010-07-14
申请号：JP2000241231
申请日：2000-08-09
申请人：日之出水道機器株式会社
发明人：浩二吉瀬 , 昭弘新田
IPC分类号： B28B21/68 , E02D29/12 , B28B21/80 , B28B21/84 , B28B23/20

6. 发明专利

JP2006181955A Concrete pipe for pipe jacking method, and its centrifugal molding method 审中-公开
标题翻译：用于管道挤压方法的混凝土管及其离心成型方法
公开(公告)号：JP2006181955A
公开(公告)日：2006-07-13
申请号：JP2004380118
申请日：2004-12-28
申请人： Kurimoto Concrete Industries Ltd , 栗本コンクリート工業株式会社
发明人： MIYAHARA TSUYOSHI , NOBE OSAMU
IPC分类号： B28B23/20 , B28B21/58 , B28B21/68
摘要： PROBLEM TO BE SOLVED: To enhance the strength of a pipe body against external pressure, and to eliminate a variation in the decrease of strength in molding.
SOLUTION: In a concrete pipe for a pipe jacking method, a cage, which is formed by continuously molding a cage part 11 and a cage part 12 for an insertion port with a diameter smaller than that of the cage part 11, is used: the cage part 11 is embedded near an outer peripheral surface of a concrete pipe body 14; and the cage part 12 is embedded in the step part 18a of the pipe body 14. This makes the concrete pipe 15 for the pipe jacking method minimize the covering of concrete, so that the strength against the external pressure can be increased. Additionally, the cage is concentrically embedded in pipe body by performing centrifugal molding in a state that the continuously formed cage is arranged in a cylindrical form, so that the quality of the pipe body can be kept in the same proper state.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提高管体抵抗外部压力的强度，并且消除了模制中的强度降低的变化。解决方案：在用于顶管法的混凝土管中，通过连续模制笼部11和直径小于保持架部11的插入口的保持架部12而形成的保持架是使用：将保持架部11嵌入混凝土管体14的外周面附近; 并且保持架部12嵌入在管体14的台阶部18a中。这使得顶管方法的混凝土管15使混凝土的覆盖面最小化，从而可以提高抵抗外部压力的强度。此外，通过在连续成形的保持架以圆筒形状配置的状态下进行离心成型，将保持架同心地嵌入管体，能够将管体的质量保持在相同的适当状态。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JPH1193160A HOLLOW REINFORCED CONCRETE PILE 失效
公开(公告)号：JPH1193160A
公开(公告)日：1999-04-06
申请号：JP25695397
申请日：1997-09-22
申请人： NIPPON CONCRETE IND CO LTD
发明人： TSUCHIDA SHINJI
IPC分类号： E02D5/30 , B28B21/68 , B28B23/20
摘要： PROBLEM TO BE SOLVED: To provide a hollow reinforced concrete pile having a high load bearing capacity at low cost. SOLUTION: A plurality of long bar-shaped reinforcing bars are disposed in a form for centrifugal molding in the axial direction. Transverse restraining reinforcing bars 6 are connected spirally, in the axial direction, around the deformed bar steels 5. The steel bar 5 has a diameter equal to one third of the wall thickness of a hollow reinforced concrete pile 1 or larger or has a steel ratio of 6% or more. The bar 6 satisfies the following conditions: ρs.σsu>=12.63 kgf/cm and ρs.σsu>=2.07 Ps. If the sectional area of one transverse restraining reinforcing bar is indicated by As, a pitch by a, disposed diameter of transverse restraining reinforcing bar by d, actual tensile strength of transverse restraining reinforcing bar by σsu, and steel ratio of deformed bar steel by Ps, ρs=4.As/(a.d). A properly mixed concrete 3 is fed into the form to form a hollow reinforced concrete pile 1 by centrifugal molding. In the pile 1, cracks are not generated and a brittle fracture does not occur under a high axial force so that the axial force can be sufficiently held. The pile can be formed at a cost lower than that of a SC pile having a higher load bearing capacity.

8. 发明专利

JPH0811405B2 失效
公开(公告)号：JPH0811405B2
公开(公告)日：1996-02-07
申请号：JP13965886
申请日：1986-06-16
IPC分类号： B28B1/52 , B28B21/58 , B28B21/68 , B28B23/20 , C04B14/38 , C04B16/06

9. 发明专利

JPH054221A MEMBER DIFFERENT IN CONCRETE STRENGTH DISTRIBUTION AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH054221A
公开(公告)日：1993-01-14
申请号：JP15658091
申请日：1991-06-27
申请人： TAISEI CORP
发明人： SEGUCHI TAKEO , UETOKO MINORU
IPC分类号： B28B23/02 , B28B23/20
摘要： PURPOSE:To obtain a member rational from a structural aspect different in the concrete strength distribution of its cross section by properly using concretes not hardened different in composition such as a water/cement ratio at every positions of the cross section of the member to arrange them to constitute required concrete strength distribution. CONSTITUTION:In the case of centrifugal molding, the composition of concrete is changed at every positions of the cross section of a member at the time of centrifugal molding to change the developed strength of concrete. For example, retaining mold rotating circular drums 2 mounted on both ends of the outer peripheral retaining mold 1 of a PCa pillar formed into a hollow square pillar shape are placed on retaining mold rotating drive wheels 3 and a retaining mold rotating wheels 4 and the retaining mold 1 is rotated by the drive wheels 3 and the concrete in the retaining mold is compacted by the centrifugal force generated at this time. The dehydration amount of concrete not hardened is changed by the applying way of centrifugal force and the water/cement ratio in concrete not hardened continuously becomes small. As a result, the developed strength of concrete becomes high from the central part of the cross section of the pillar toward the outside thereof.

10. 发明专利

JPS61179948A STEEL PIPE CONCRETE COMPOSITE PILLAR 失效
公开(公告)号：JPS61179948A
公开(公告)日：1986-08-12
申请号：JP2059385
申请日：1985-02-05
申请人： SUZUKI TOSHIRO , TOMOEGUMI IRON WORKS
发明人： SUZUKI TOSHIRO , YAMADA TAKEHIKO , FUKAZAWA TAKASHI , SATO NOBUHIRO , KUBODERA ISAO , YAMADA TAKESHI
IPC分类号： E04B1/30 , B28B21/58 , B28B23/20 , E04C3/30 , E04C3/34

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