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1. 发明专利

JPH06185295A TAIL SEAL REPLACEMENT METHOD FOR SHIELD MACHINE 失效
公开(公告)号：JPH06185295A
公开(公告)日：1994-07-05
申请号：JP33640092
申请日：1992-12-16
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DOBOKU , HITACHI CONSTRUCTION MACHINERY
发明人： ASAI KATSUTOSHI , KOMURA YUICHI , WAKITA HAJIME , SAKURAI HIROSHI , FUJII YOSHIBUMI , OONISHI TSUNEYASU , HIRASAWA YUKIHISA , ISHIKAWA YASUAKI , MAEHARA NOBUYUKI , WATANABE AKIRA
IPC分类号： E21D11/00
摘要： PURPOSE:To exchange a tail seal without halting the operation of a shield machine. CONSTITUTION:An inner ring 3 provided with a tail seal 2 is fixed with an inner peripheral surface of a skin plate 1 for a shield machine. A replacement inner ring 6 is installed to an inner peripheral surface of the tail skin plate 1 at a portion in front of the inner ring 3 and segments 5 are assembled on the inner peripheral surface of the replacement inner ring 3. The inner ring 3 in service and the replacement inner ring 6 are fixed with a check bolt 8 while the shield machine is adapted to advance by a portion of one ring. A new replacement inner ring 6 is fixed with the tail skin plate 1 while accompanied by the advancement of the shield machine, a used old inner ring 3 is left over backward as it is. It is, therefore, possible to exchange new and old tail seals 7 and 2 under the continuous drilling operation of the shield machine and reduce both construction period and cost in the execution of excavation work based on a shield method.

2. 发明专利

JPH0633680A CONSTRUCTING METHOD OF LARGE-DEPTH SHAFT 失效
公开(公告)号：JPH0633680A
公开(公告)日：1994-02-08
申请号：JP18808892
申请日：1992-07-15
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DOBOKU
发明人： ASAI KATSUTOSHI , FUJII YOSHIBUMI , WAKITA HAJIME
IPC分类号： E21D1/00 , E21D5/00
摘要： PURPOSE:To construct a large-depth shaft, which has a bore of approximately 2m-6m and is sunk extending over an underground section of 50m-100m. CONSTITUTION:A reinforced concrete slab 3 is constructed at a place, where a shaft 11 is built, a cylindrical-shaped muddy water tank 5 for pressing is installed onto the slab 3, and a stage 10 for operation higher than the muddy water tank 5 for pressing is mounted. The shaft 11 is underwater-excavated up to desired depth by utilizing a bored-wall stabilizing liquid 12. A tubular body module 15, in which a lower bottom is sealed, is inserted into the shaft 11, and set up under the state, in which the module 15 is floated on a level by using buoyancy by the bored-wall stabilizing liquid 12. Movable load resisting buoyancy working to the tubular body module 15 is applied, and the sinking operation of the tubular body module 15 is promoted at every one module. The module 15 reaches desired depth, and a back-filling material is carried out into the clearance of the shaft 11 and tubular bodies 15, 15'. The large-depth shaft is built in a safer manner and with more excellent workability than a conventional technique, thus constructing the shaft at low cost in a short construction period.

3. 发明专利

JPH06146793A LINING METHOD BY SEGMENT OF SHIELD METHOD 失效
公开(公告)号：JPH06146793A
公开(公告)日：1994-05-27
申请号：JP29975592
申请日：1992-11-10
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DOBOKU
发明人： ASAI KATSUTOSHI , KOMURA YUICHI , SAKURAI HIROSHI , FUJII YOSHIBUMI , OONISHI TSUNEYASU , WAKITA HAJIME
IPC分类号： E21D11/04
摘要： PURPOSE:To accomplish the man-power saving in manufacturing, control and built-up work by forming a ring of a plurality of basic segments and one piece of key segment having width smaller than each of them. CONSTITUTION:The number of segments per one ring is an even number, and the ring is constituted of one piece of segment 1 formed in an axial insertion type trapezoid-shape and a plurality of basic segments 2.... The size of the key segment is 1/3-1/5 of each of the basic segments 2, and the largeness of an angle of inclination on an oblique side is 5 deg.-11 deg.. First of all, after the basic segments 2 are all arranged, and the assembly of one ring is completed by inserting the key segment 1 along the axis. According to the constitution, the width of the key segment 1 is reduced to make small an angle of inclination on the oblique side, there is no spalling in corner sections, and an insertion margin (a) of the key segment 1 as the last segment can make small.

4. 发明专利

JPH06146298A SINKING INSTALLATION METHOD OF SHAFT STRUCTURE 失效
公开(公告)号：JPH06146298A
公开(公告)日：1994-05-27
申请号：JP30397792
申请日：1992-11-13
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DOBOKU
发明人： ASAI KATSUTOSHI , KOMURA YUICHI , FUJII YOSHIBUMI , KANZAKI YASUSHI , ANDO SHINICHIRO , WAKITA HAJIME
IPC分类号： E02D23/00 , E02D23/02 , E02D29/063 , E21D10/08
摘要： PURPOSE:To sinkingly install a shaft structure constituted of RC construction precast concrete members in a drilled hole so as to build a shaft. CONSTITUTION:A dry-dock 4 is provided in the vicinity of a hole 2 in which a shaft structure 1 is sinkingly installed, a foremost shaft structure 1 is assembled in the dry-dock 4, and a bottom board 5 is provided so as to complete the structure. After completing the shaft structure 1, a partition wall 15 between the dry-dock 4 and the hole 2 is withdrawn so as to communicate both to each other, stabilizing liquid 3 is filled in the dry-dock 4 and the hole up to a prescribed level, and the shaft structure 1 is floated on the surface of the water, pulled sideways, and moved up to the position to sink it in the hole 2. A shaft structure 7 of succeeding order built at the site of the hole 2 is piled in order on the foremost shaft structure 1. Water is poured in the hollow part 1a of the shaft structures 1, 7 while keeping balance with the floating force, so as to sinkingly install the shaft structure 1. In this way, for moving the foremost shaft structure 1 of heavy weight of 20t-50t, any a large sized crane is not at all necessary, and hence the labor for sinkingly installation work is saved and the low cost can be attained.

5. 发明专利

JPH06185284A COLLECTION METHOD OF VERTICAL SHIELD MACHINE AND SHAFT CONSTRUCTION METHOD 失效
公开(公告)号：JPH06185284A
公开(公告)日：1994-07-05
申请号：JP33859092
申请日：1992-12-18
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DOBOKU , HITACHI CONSTRUCTION MACHINERY
发明人： ASAI KATSUTOSHI , KOMURA YUICHI , SAKURAI HIROSHI , FUJII YOSHIBUMI , OONISHI TSUNEYASU , WAKITA HAJIME , HIRASAWA YUKIHISA , ISHIKAWA YASUAKI , MAEHARA NOBUYUKI , WATANABE AKIRA
IPC分类号： E21D1/08
摘要： PURPOSE:To maintain the interior of a shielding machine in an atmospheric space and collect each component of the shielding machine by drilling a shaft, securing a space in the front of a cutter so as to collect each component of the machine and casting footing concrete in the other spaces further secured and then collecting the remaining components of the shielding machine. CONSTITUTION:In the stage when a shaft 2 is excavated and built with a vertical type shielding machine 1, a sliding jack 3 is contracted, thereby securing a space 17 in front of cutters 4 and 5 and disassembling a motor 8 in the shielding machine 1 and a sludge pipeline 10 or the like. Then, a guide pipe 12 and a reaction force rack 13 are installed to this collected space. A hydraulic jack 14 is operated, thereby lifting up a cutter inner peripheral part 5 of the cutter or the like and securing a space 18 whose cast thickness is equivalent to that of footing concrete 15. After the footing concrete 15 is cast in this space 18, the components in a guide pipe 12 and the remaining components such as the shielding jack 14 and sludge feed and discharge valve 11 of the shielding machine 1 are collected.

6. 发明专利

JPH06117174A CIRCULATION OF SLURRY IN VERTICAL SHIELD 失效
公开(公告)号：JPH06117174A
公开(公告)日：1994-04-26
申请号：JP27146892
申请日：1992-10-09
申请人： TAKENAKA DOBOKU , TAKENAKA KOMUTEN CO , HITACHI CONSTRUCTION MACHINERY
发明人： YOSHINO SHIGEO , SAKURAI HIROSHI , FUJII YOSHIBUMI , OONISHI TSUNEYASU , WAKITA HAJIME , ASAI KATSUTOSHI , ODAWARA KENJI , HIRASAWA YUKIHISA , ISHIKAWA YASUAKI , HOSOYA YOSHISHIGE , MAEHARA NOBUYUKI , WATANABE AKIRA
IPC分类号： E21D1/08 , E21D9/06 , E21D9/13
摘要： PURPOSE:To stably keep a working face from the shallow level to the deeper level in an excavated shaft and smoothly discharge the excavated soil and furthermore obtain a wide space for haulage of materials into the pit. CONSTITUTION:A cutter chamber 17 of a vertical shield 1 is connected to a slurry processing apparatus 2 on the ground through water pipes 14 and slurry pipes 15. A water pump 3 installed on the way of water pipes feeds conditioned slurry with pressure to the cutter chamber 17. An air-blowing inlet 22 connected to the air pipe 21 serves as an air-lift pump to return the slurry mixed with the excavated soil to the slurry processing apparatus 2 through the slurry pipe 15. The air-lift pump circulates the slurry together with the water pump 3.

7. 发明专利

JPH06173599A COMPOSITE STRUCTURAL SEGMENT FOR RECTANGULAR SHIELD WITH LARGE SECTION 失效
公开(公告)号：JPH06173599A
公开(公告)日：1994-06-21
申请号：JP33191492
申请日：1992-12-11
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DOBOKU
发明人： ASAI KATSUTOSHI , HIGASHIHATA YASUO , KOMURA YUICHI , FUJII YOSHIBUMI , TAGAWA HIROYOSHI , KANZAKI YASUSHI , WAKITA HAJIME
IPC分类号： E21D11/04 , E21D11/08 , E21D11/14
摘要： PURPOSE:To greatly make lightweight a skeleton in the case a composite structural segment is partially used in comparison with that in the case reinforced concrete is used in the whole by using the composite structural segment constituted of reinforcement and steel frame structurally as a unit in side sections to execute a rectangular shield with a large section. CONSTITUTION:In pieces 5-8 of side sections of a rectangular shield segment, steel frames 11 are combined with reinforced concrete 12 to manufacture a composite structural segment. Notches are provided to the front ends of webs 17a of three T-shape steels 17 used for steel frames as a main structural element on a positive bending side, and stirrups 18 of the reinforced concrete 12 are inserted in the notches, so that a penetration state can be ensured. Besides, two angles 20 and 20 as anchoring members are fastened to both sides of each of webs 17a with a bolt 25 and a nut. If necessary, butt sections of flanges of T-shape steels 17 are welded. According to the constitution, side sections are formed as SRC construction, so that a lightweight skeleton can be obtained.

8. 发明专利

JPH06146310A CONSTRUCTION METHOD OF GREAT DEPTH SHAFT HAVING LARGE SECTION 失效
公开(公告)号：JPH06146310A
公开(公告)日：1994-05-27
申请号：JP29974092
申请日：1992-11-10
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DOBOKU
发明人： ASAI KATSUTOSHI , WAKITA HAJIME , SAKURAI HIROSHI , FUJII YOSHIBUMI , OONISHI TSUNEYASU , ANDO SHINICHIRO
IPC分类号： E02D29/045 , E21D1/03 , E21D13/00 , E02D29/04
摘要： PURPOSE:To provide a method for constructing a great depth vertical shaft having a large section in a short period of time at a low cost. CONSTITUTION:A hole 4 having such a shape as a plurality of circular arcs are partially overlapped with each other is excavated by a multihead type reverse machine, and a plurality of precast slabs dividing in plane a vertical shaft structure 5 having a modular axial length in a shape partially overlapping a plurality of circular arcs having the approximately same plane type as that of the hole are manufactured at a plant. After that, the precast slabs manufactured at the plant are built up, a bottom board 9 having watertight construction is installed to the vertical shaft structure of the front end ring, the vertical shaft structures are piled up one ring at a time and are settled into the hole 4 while keeping the balance of buoyancy of stabilizing liquid 10, and after the vertical shaft structures are settled up to specific depth, back- filling concrete 11 is placed around the peripheral surface of the vertical shaft structures in the hole. According to the constitution, a series of works such as excavation by a reverse method and assembly and settlement of the precast slabs are carried out relatively within a short period of time, construction can be economically and safely executed within a short construction period, and it can correspond to the need of a deep vertical shaft having a large section.

9. 发明专利

JPH0658075A CUTTER HEAD COLLECTING METHOD AND MECHANISM OF VERTICAL TYPE SHIELD MACHINE AND PIT CONSTRUCTION 失效
公开(公告)号：JPH0658075A
公开(公告)日：1994-03-01
申请号：JP21025892
申请日：1992-08-06
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DOBOKU , HITACHI CONSTRUCTION MACHINERY
发明人： ASAI KATSUTOSHI , ODAWARA KENJI , SAKURAI HIROSHI , FUJII YOSHIBUMI , OONISHI TSUNEYASU , YOSHINO SHIGEO , WAKITA HAJIME , HIRASAWA YUKIHISA , ISHIKAWA YASUAKI , MAEHARA NOBUYUKI , WATANABE AKIRA
IPC分类号： E21D1/08
摘要： PURPOSE:To greatly enhance the economics by decomposing the atmospheric side conponents of a shield machine after excavation of a pit, collecting them back onto the ground, and lifting a cutter head by a crane installed on the ground in the condition that the pit is submerged with water for collection of the cutter head. CONSTITUTION:After a pit is excavated by a vertical shield machine 1, mud feeding/ exhausting pipes, erector, cutter rotating motor, shield jack, etc., which are positioned on the atmospheric side above a bulkhead 12, are collected back onto the ground. Using a wire 22 a cutter head 3 is tied with a hook 21 sunk from a crane provided on the ground. Water is poured into the pit so that the shield machine 1 is submerged with water, and the water is put to the level which generates equilibrium with the earth pressure and subsoil water pressure acting on the excavation surface and inside of a bulkhead chamber, and the state of free water surface is generated. A ring girder 4 is separated from a bulkhead 5 using a remote control device such as a hydraulic jack, and the cutter head 3 is lifted by the crane and collected onto the ground. Thereby the cutter head and other components which are expensive can be collected, and construction of the works can be completed safely and quickly.

10. 发明专利

JPH0633679A CONSTRUCTING METHOD OF LARGE-DEPTH SHAFT 失效
公开(公告)号：JPH0633679A
公开(公告)日：1994-02-08
申请号：JP18686092
申请日：1992-07-14
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DOBOKU , NIPPON HUME PIPE
发明人： ASAI KATSUTOSHI , FUJII YOSHIBUMI , ANDO SHINICHIRO , WAKITA HAJIME , IWASA SEIJI , SHIBATA SATOSHI
IPC分类号： E21D1/00 , E21D5/10
摘要： PURPOSE:To construct a large-depth shaft for building the aeration tank of an ultra-deep layer and a ventilating hole, etc. CONSTITUTION:A vertical hole 2 having a bore D2, in which allowance S is added to the outside diameter D1 of a tubular body 1, is underwater-excavated up to desired depth by using a bored-wall stabilizing liquid 3. A bottom block 4 having watertight structure is executed on the bottom of a tubular which the tubular body 11 is floated on a level in the vertical hole 2 by utilizing buoyancy, and the upper end section of the tubular body is positioned and fixed by a fixture 5 at a ground surface level. A tubular body 13 in subsequent order is superposed onto a tubular body 12 in preceding order and the upper and lower bodys 12, 13 are integrally joined mutually, the fixture 5 is loosened and movable load resisting buoyancy is applied to said tubular bodies 11, 12, 13, and operation conducting sinking corresponding to one body is repeated. The sinking of the tubular body 1 reaches desired depth, and a back-filling material 6 is carried out into the clearance of the vertical hole 2 and the tubular body 1. Accordingly, a large-depth shaft is executed in a safer manner and with more excellent workability than a conventional technique, thus constructing the large-depth shaft at low cost in a short construction period.

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