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1. 发明专利

JPH1150674A REINFORCING STRUCTURE FOR CONCRETE MEMBER AND CUSHION MATERIAL THEREFOR 失效
公开(公告)号：JPH1150674A
公开(公告)日：1999-02-23
申请号：JP20951197
申请日：1997-08-04
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： MIYASE FUMIHIRO , MAEDA TOSHIYA , NOMURA TOMOHIRO , ONO SADAMU
IPC分类号： E04C3/34 , E04G23/02
摘要： PROBLEM TO BE SOLVED: To prevent breakage due to stress concentration of the reinforcing sheet of a corner part by laying cushion material between the chamfered corner parts of a cross section substantially rectangular concrete column to wind the reinforcing sheet. SOLUTION: The corner part 10a of a cross section substantially rectangular concrete-made column 10 is chamfered to form two corner parts 11. A cushion material 14 is laid between the corner parts 10a to wind a reinforcing sheet 12 around the outer peripheral face of the column 10 so as to make earthquake- resistant reinforcement. The cushion material is composed of rubber, foaming resin and the like, made cross section shape corresponding to the corner part 10a, a pressure sensitive adhesive double coated tape 15 is stuck on the rear face, enable sticking on the corner part 10a, a surface material 16 such as a mold release film is provided on the surface, and friction with the reinforcing sheet 12 is reduced to facilitate winding. Thus, breakage of the reinforcing sheet 12 due to stress concentration of the corner parts 10a is prevented, and rounding working of the corner part 10a is unnecessitated by a sand blasting and the like.

2. 发明专利

JP2000280231A MANUFACTURE OF SETTING FILLER USING WATER-ABSORBING POLYMER 失效
公开(公告)号：JP2000280231A
公开(公告)日：2000-10-10
申请号：JP9340299
申请日：1999-03-31
申请人： RAILWAY TECHNICAL RES INST , SHIMIZU CONSTRUCTION CO LTD , NIPPON CATALYTIC CHEM IND , RASA IND LTD
发明人： ASAKURA TOSHIHIRO , KONISHI SHINJI , TACHIBANA DAISUKE , SATO TAKASHI , MIYASE FUMIHIRO , KONO SHIGEYUKI , ODANAKA HIROSHI , MASUDA YOSHIHIKO , OKAMURA KAZUHIRO , OTA ISAO , KISHIMOTO MASAO , SORANISHI MASAO
IPC分类号： E21D11/00 , B28C7/00 , C04B28/00 , C04B28/02
摘要： PROBLEM TO BE SOLVED: To develop a water absorbing performance of a water absorbing polymer proper by a method wherein prior to mixing with a setting material, a water absorbing polymer is firstly mixed with water or accelerator-mixed water and thereafter, a setting material is charged and mixed by kneading. SOLUTION: Prior to mixing with a setting material, a water-absorbing polymer is mixed with water or an accelerator-mixed aqueous solution. The water-absorbing polymer is sufficiently expanded. Thereafter, the setting material is charged into water and mixed by kneading. Then, the manufactured setting filler reacts by water absorption in water in a state wherein the water absorbing polymer is low in alkali concentration. Herein, cement or the like as the setting material, that having aluminate or the like as a main material, and polyacrylate crosslinked material or the like as the water absorbing polymer are used. Thereby, a water absorbing performance possessed by the water- absorbing polymer itself can be sufficiently developed, a use amount of an especially high costed water-absorbing polymer can be reduced, and the cost can be extremely decreased.

3. 发明专利

JPH10238290A EXECUTION METHOD OF TUNNEL 失效
公开(公告)号：JPH10238290A
公开(公告)日：1998-09-08
申请号：JP24728797
申请日：1997-09-11
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： OTA ISAO , KISHIMOTO MASAO , SORANISHI MASAO , ODANAKA HIROSHI , MASUDA YOSHIHIKO , SUMINAGA NORISUKE , KONO SHIGEYUKI , KIUCHI TSUTOMU , TACHIBANA DAISUKE , HORIUCHI SUMIO , NAGURA KENJI , MIYASE FUMIHIRO , NOGUCHI TSUNEHISA
IPC分类号： E21D11/00 , C04B26/02 , C04B28/02
摘要： PROBLEM TO BE SOLVED: To fill up a recessed part, and smoothly perform execution of a tunnel by arranging timbering and a sheet pile member in a tunnel hole, injecting a cavity filer containing a water absorptive resin and cement into a bedrock side recessed part, and absorbing, expanding and hardening it. SOLUTION: Ring-shaped timberings 4 are arranged in a plurality in an excavated tunnel hole 3. Next, a sheet pile member 5 is inserted between the timbering 4 and a top end part of the hole 3, and covers the whole lower part of a recessed part A. A powdery cavity filler F2 containing a water absorptive resin and cement is sent and supplied by a hose 7 into the recessed part A from the outside of the sheet pile member 5. Next, water is injected into the recessed part A by a hose 8, and water is sprayed from a large number of micropores 8a of a peripheral surface of the hose 8, and is permeated into a cavity filler F4. The water absorptive resin absorbs sprayed water and expands, and fills the recessed part A, and strength is increased by hardening of the cement. Therefore, the recessed part A can be reliably and smoothly filled with a hardening material.

4. 发明专利

JPH10238289A FILLING METHOD OF CAVITY 失效
公开(公告)号：JPH10238289A
公开(公告)日：1998-09-08
申请号：JP24728697
申请日：1997-09-11
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： OTA ISAO , KISHIMOTO MASAO , SORANISHI MASAO , ODANAKA HIROSHI , MASUDA YOSHIHIKO , SUMINAGA NORISUKE , KONO SHIGEYUKI , KIUCHI TSUTOMU , TACHIBANA DAISUKE , HORIUCHI SUMIO , NAGURA KENJI , MIYASE FUMIHIRO , NOGUCHI TSUNEHISA
IPC分类号： E21D11/00 , C04B26/02 , C04B28/02
摘要： PROBLEM TO BE SOLVED: To reliably fill up a cavity by arranging a cavity filler containing a water absorptive resin and cement in bedrock and the cavity between a tunnel segment and the bedrock, and absorbing water, expanding and hardening it in the cavity. SOLUTION: When a tunnel is excavated, a cavity A is generated in a top end part or the like of a hole 3 by falling-in of bedrock G. Then, timbering 4 and a sheet pile 5 are arranged in the hole 3 of the tunnel. A powdery cavity filler P3 by adding bentonite to a water absorptive resin and cement, is sent and supplied by a first hose with an air force feed or the like into the cavity A from the outside of the sheet pile 5. Next, water is injected into and sprayed on a peripheral surface by a hose 8 having a large number of micropores 8a, and the water absorptive resin is expanded, and fills the cavity A. Strength is revealed by hardening of the cement, and the cavity is filled with a hardening material.

5. 发明专利

JP2006342629A MEANS FOR FILLING FILLER INTO CAVITY, AND METHOD OF FILLING THE SAME 审中-公开
公开(公告)号：JP2006342629A
公开(公告)日：2006-12-21
申请号：JP2005171239
申请日：2005-06-10
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： MIYASE FUMIHIRO , MAEDA TOSHIYA
IPC分类号： E21D11/00
摘要： PROBLEM TO BE SOLVED: To provide a means for filling a filler 14 specifically into an upper surface portion 13a out of a cavity 13 defined by a rear surface of lining concrete 12 of an existing tunnel 11 and the natural ground 10, and to provide a method of filling the same. SOLUTION: The means for filling the filler is formed of bag-shaped weirs 20, holes 22 for the bag-shaped weirs, and a filling hole 23. Each bag-shaped weir 20 is formed like a bag so as to inflate upon introduction of fluid (air or water) therein and to deflate upon discharge of the fluid. The bag-shaped weir is arranged in the cavity 13 in a deflated state, and thereafter upon introduction of the fluid therein and inflation thereof, the weir defines the upper surface portion 13a to separate the same from the other area of the cavity. Each hole 22 for the bag-shaped weir is bored in the lining concrete 12 so as to communicate with the cavity 13, and functions to introduce the bag-shaped weir 20 in the deflated state to a predetermined location in the cavity 13. The filling hole 23 is bored in the lining concrete 12 so as to communicate with the upper surface portion 13a, for filling the filler 14 into the upper surface portion 13a. COPYRIGHT: (C)2007,JPO&INPIT

6. 发明专利

JP2000007407A CONCRETE FOR PACKING IN TUBULAR ELEMENT 失效
公开(公告)号：JP2000007407A
公开(公告)日：2000-01-11
申请号：JP18119098
申请日：1998-06-26
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： KUMANO TOMOJI , KAWAI TORU , NAGURA KENJI , MIYASE FUMIHIRO
IPC分类号： C04B28/02 , E04G21/02
摘要： PROBLEM TO BE SOLVED: To make it possible to well place concrete into an element which is formed to a tubular shape and is extended and arranged in a horizontal direction without the occurrence of material sepn. by grouting the concrete specified in slump flow value and plastic viscosity into the element. SOLUTION: The slump flow value of the concrete grouted into the element of 20 to 40 m in the length which is formed to the tubular shape and is extended and arranged in the horizontal direction is set at 55 to 65 cm and the plastic viscosity thereof at 65 to 72 Pa/s. The concrete composed of cement, water, fine aggregate, coarse aggregate and admixture is used as the concrete for grouting. Portland cement, white cement, etc. are used for the cement and city water is used for the water. Mounting sand, crushed sand, etc. are used for the fine aggregate and crushed stones, gravel, etc. for the coarse aggregate. Further, a high-performance AE water-reducing agent (polycarboxylic acid system, etc.), is used for enhancing fluidity and the admixture (fine powder of blast furnace slag, etc.), thickener (glycol-based thickener, etc.), are used in order to impart a material sepn. resistance characteristics.

7. 发明专利

JPH10237446A CAVITY FILLER 失效
公开(公告)号：JPH10237446A
公开(公告)日：1998-09-08
申请号：JP24728597
申请日：1997-09-11
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： OTA ISAO , KISHIMOTO MASAO , SORANISHI MASAO , ODANAKA HIROSHI , MASUDA YOSHIHIKO , SUMINAGA NORISUKE , KONO SHIGEYUKI , KIUCHI TSUTOMU , TACHIBANA DAISUKE , HORIUCHI SUMIO , NAGURA KENJI , MIYASE FUMIHIRO , NOGUCHI TSUNEHISA
IPC分类号： E21D11/00 , C04B24/26 , C04B28/02 , C04B111/70 , C09K17/44 , C09K17/48 , C09K103/00
摘要： PROBLEM TO BE SOLVED: To obtain a cavity filler which can be filled, as a filler or a backfill material, into cavities at the crown side of a tunnel, etc., without fail, and enables a limited filling by compounding cement with a water-absorbing resin which absorb water and swells. SOLUTION: In the case of powder mixture comprising a water-absorbing resin and cement, the mixture absorbs injected water or natural inflow water after charged into a cavity, swells to fill it, and then solidifies. When some water is added to a mixture of the resin and cement is advance, the mixture becomes pumpable and expands in a cavity to enable a close filling. The incorporating of a water-soluble org. solvent into a compsn. contg. a water-absorbing resin and cement can give a flowable cavity filler which facilitates handlings such as transportation, pumping, and filling and enables a limited filling without causing voids even at the crown part of a tunnel. pref. the compsn. has an outflow ratio in water of 40% or lower and a flow value of 140-210.

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