WO1991002140A1 - Closed type shield machine - Google Patents

Closed type shield machine Download PDF

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Publication number
WO1991002140A1
WO1991002140A1 PCT/JP1990/000963 JP9000963W WO9102140A1 WO 1991002140 A1 WO1991002140 A1 WO 1991002140A1 JP 9000963 W JP9000963 W JP 9000963W WO 9102140 A1 WO9102140 A1 WO 9102140A1
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WO
WIPO (PCT)
Prior art keywords
earth
tube
shield
shield machine
chamber
Prior art date
Application number
PCT/JP1990/000963
Other languages
French (fr)
Japanese (ja)
Inventor
Seiji Osada
Masao Fukada
Original Assignee
Kabushiki Kaisha Komatsu Seisakusho
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kabushiki Kaisha Komatsu Seisakusho filed Critical Kabushiki Kaisha Komatsu Seisakusho
Publication of WO1991002140A1 publication Critical patent/WO1991002140A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
    • E21D9/126—Loading devices or installations
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
    • E21D9/0875—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a movable support arm carrying cutting tools for attacking the front face, e.g. a bucket
    • E21D9/0879—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a movable support arm carrying cutting tools for attacking the front face, e.g. a bucket the shield being provided with devices for lining the tunnel, e.g. shuttering

Definitions

  • the present invention relates to a soil-sealing type semi-sealed or soil-sealing type shield machine having a soil discharging device capable of continuously transporting large-diameter cobblestones.
  • the shield machine used for the semi-sealed semi-shielding method or the shield-d method uses the earth excavated by the cutter head to excavate the soil. After discharging the soil from inside the cutter head by a conveyor, it is transported to a starting shaft by a conveyor such as a slit outlet through a belt conveyor. , And was carried to the ground from the starting shaft.
  • the properties of the sediment that can be conveyed by the transport pipe are generally 1.6 to 1.8 in specific gravity and 15 to 20 cm in slump value.
  • the present invention uses a sheet head excavated by a cutter head, which is provided on the front of the shield body, and is provided with a face roll.
  • the discharging means After taking into the chamber at the front of the body of the rod body, the discharging means with the discharging adjustment valve that keeps the pressure inside the chamber constant is shielded by the discharging means.
  • a tube In a soil-removal-sealed shield machine that is transported to the rear of the main unit, a tube is placed behind the above-mentioned earth-discharge valve, and this tube is fed in the direction of the hand to the next pressure feed. In this way, a main opening roller that feeds the earth and sand inside the tube backward is installed, and an earth discharging device is installed.
  • the tomato mixed with large-diameter cobblestone can be continuously transported backward, and continuous excavation is possible even with a soil excavated and sealed shield machine.
  • the excavation and cobble digging of the cobblestone were made more than that of the cobblestone ⁇ to be excavated, because the projecting head of the cutter head protruding from the lid was set to be more than 1 ⁇ 2 of the cobblestone ⁇ ⁇ to be excavated. It can be done efficiently.
  • a crusher is set up on the drainage adjusting valve and the drainage device to break the cobble larger than the tube diameter.
  • the purpose of the present invention is to provide a soil cutting and sealing type shield machine capable of transporting even larger diameter cobblestones.
  • FIG. 1 is a longitudinal sectional view of a shield body according to an embodiment of the present invention
  • FIG. 2 is a front view of the same
  • FIG. 3 is a sectional view taken along the line m-1 in FIG. Is a plan view of the earth removal device
  • Fig. 5 is a side view
  • Fig. 6 is a cross-sectional view along the line VI- 1 VI
  • Fig. 7 is a cross-section along the line VI-VII- 1 VE.
  • Fig. 8 a cross-sectional view along the line in Fig. 5
  • Fig. 9 is a cross-sectional view along the line K-K in Fig. 9,
  • Fig. 10 is another embodiment of the present invention.
  • the longitudinal section of the shield body shown in Fig. 11 is a sectional view along the line XI-XI in Fig. 10.
  • Fig. 1 shows the shield machine used for the earth-seal type semi-shield construction method, where 1 is a shield that is refracted by the direction correction jacket 6
  • the main body 2 is a power head mounted on the front of the shield main body 1, and is rotated via the reduction gear 4 by the power head driving motor 3.
  • the surface is turned around the axis 5.
  • the head 2 is formed of spokes 2a having a substantially cross shape, and the spoke heads 2a are formed by the spokes 2a.
  • a plurality of force gauges 2 spaced radially on the front b is protruded, and these cutters 2 are used to excavate the face in front of the shield body 1 and to dig up the oak cobblestone.
  • each power collector 2b is due to the digging of the cobblestone and the incorporation into the chamber 1a provided at the front of the shield body 1.
  • the diameter of the target boulder is set to ⁇ or more so that it can be performed well.
  • a passage 5a is formed in the image transfer shaft 5, and a front end of the passage 5a is communicated with a passage 2c formed in the spoke 2a. Yes.
  • the tip of the passage 5a formed in the surface spade 5 and the tip of the passage 2c provided in each of the spokes 2a are the tip of the surface turning shaft 5 and the spoke.
  • 2a Opened in front of a cutter 2b attached to the end, respectively, and is opened from a pipe provided with a slurry material (not shown) through a surface contact 7 from a pipe provided with a slurry material.
  • the sludge supplied to the passage 5a in the shaft 5 is formed so that the pupil is exposed to the excavated earth and sand from the opening.
  • One end of the discharge pipe 8 is opened at the lower part of the chamber 1a installed at the front of the shield body 1, and the other end of the discharge pipe 8 is closed at the other end. It is connected to a discharge control valve 9 such as a binder valve installed in the main body 1.
  • a clogging removal pipe 10 is provided at the upper end of the other end of the discharging pipe 8 to inject water or the like to remove the clogging when the discharging pipe 8 is clogged.
  • the rear end of the discharge control valve 9 is connected to a discharge device 13 via a foreign substance removal box 12 installed to facilitate inspection and removal of foreign matter. Yes.
  • the above-mentioned earth removal device 13 has a tube 15 having a diameter almost the same as that of the transport pipe 14.
  • the tube 15 is made of an elastic material such as rubber, and a frame 13a is provided on the rain side of the tube 15. At the front and rear ends of these frames 13a, there are a floating sprocket 16 and a driving sprocket 17 via a driven shaft 16a and a driving shaft 17a. It is supported by the movement itself.
  • An endless chain 18 is wound between the floating sprocket 16 and the driving sprocket 17, and is connected to the driving shaft 17 a. These wheels 18 are to be surface-turned by the surface-drive drive source 25 which is a hydraulic motor connected via the chain 19. In addition, both ends of the shaft 20a of the main roller 20 that presses the tube 15 are supported between the chains 18.
  • the main roller 20 is mounted in two places, for example, in the chain 18 and has a substantially elliptical shape as shown in FIG.
  • a rubber layer 20 b is provided on the outer peripheral surface so as not to damage the tube 15 when compressing the tube 15. ing .
  • the shaft 20a of the main roller 20 has an orifice that rolls on a guide rail 13b provided along the periphery of the frame 13a. 21 is supported by the surface rolling itself, and a cushioning material 22 such as rubber for protecting the tube 15 is laid under the tube 15. ing .
  • each of the hanging rods 23 is compressed with a compression spring for urging the frame 13 a downward, while being suspended through the rods 23 as shown in FIG. Is fitted.
  • the sediment excavated by the cutter head 2 along with the excavation of the shield body 1 is mixed with the ejected muddy water to mix the flowing water. It becomes impervious sediment and is taken into the chamber 1a while maintaining the pressure of the face earth pressure + or.
  • the earth and sand taken into the chamber 1a is compressed by the main roller 20 of the earth discharging device 13 which presses the tube 15, and then when the tube 15 is restored. Due to the generated back pressure and the pressure in the chamber la, the air is sent into the tube 15 of the earth discharging device 13 through the earth discharging pipe 8.
  • the discharge device 13 and the discharge pipe 8 are provided with a discharge control valve 9 for maintaining the pressure of the chamber 1a ⁇ at a constant level.
  • the earth and sand 14 delivered from the chamber 1 a into the inside 15 are turned into a tube by the main roller 20 which is turned by the chain 18. Due to the compression of 15, the inside of the tube 15 is pumped backward along with the movement of the main opening 20.
  • a classifier 28 may be provided instead of the foreign matter removal box 12 on the earth / sand carrying side of the earth removal device 13.
  • the above-mentioned crusher 28 has a total of four hydraulic cylinders 29 on the rain side of a tube 28a slightly larger in diameter than the tube 15, and a total of four hydraulic cylinders 29 on the bottom side. Installed for 28a.
  • the cylinder 28a is provided with a circular hole 28b in which the bottom side of the hydraulic cylinder 29 projects into and out of the tube 28a ⁇ , and the hydraulic cylinder 29 is It is guided by the guide bush 30 so as to be able to advance and retreat into the tube 28a.
  • a saw blade-shaped crushing blade 29 a for crushing the cobblestone is formed on the bottom side of the hydraulic cylinder 28, and the head side of the hydraulic cylinder 29 is formed.
  • the tip of the projecting rod 29 b that is further protruded is pivotally connected to the bracket 28 c via the pin 31, and the head of the hydraulic cylinder 29 is connected to the bracket 28 c via the pin 31.
  • the hydraulic cylinder 29 protrudes into the pipe 28a by supplying hydraulic pressure to the pipe side, and the crushing blade 29a crushes the cobblestone in the pipe 28a. That's right.
  • the storage port of the hydraulic cylinder 29 can be transported by the earth removal device 13 simply by breaking the boulder to a size of about 1/2 to L / 3. It does not need to be large.
  • the soil excavated by the cutter head 2 and taken into the channo, '1a is an earthen pipe. 8 to the earth removal device 13, but if dirt larger than the tube 15 is mixed in the earth and sand, the pipe of the classer 28 is removed. 28 c. Blocked inside the a and could not go any further.
  • the discharge control valve 9 was closed, the cobblestone was removed together with the earth and sand.
  • the hydraulic cylinder 29 is extended by applying hydraulic pressure to the head side of the hydraulic cylinder 29, the hydraulic cylinder 29 is connected to the pipe. body protruding Ri by rain side to the 2 9 in a, Yabu ⁇ the will come to Sema ⁇ a boulder in the easy crushing blade 29 a ⁇
  • the crushed boulders are released together with the earth and sand into the tubes 15 of the discharging device 13 by opening the discharge control valve 9. , And is pressure-fed to the loop pipe 14 by the earth removal device 13.
  • an earth removal device for pumping the earth and sand while compressing the tube in the hand direction by the main roller is provided.
  • an earth removal device for pumping the earth and sand while compressing the tube in the hand direction by the main roller.
  • the pumping is also performed by means of a transport pipe, so that the inside of the pit is not contaminated by, so that it can be installed in the cutter.
  • excavation and cobble digging can be performed efficiently by increasing the protruding amount (projection amount) of the cut cutters.
  • protruding amount projection amount
  • the present invention is extremely suitable for use in a sealing machine used in a soil-sealing semi-shield method or a shield method.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

A closed type shield machine, wherein the earth excavated by a cutter head (2) installed freely rotatably in front of a machine body (1) is conveyed to the rear of the body (1), after it is taken into a chamber (1a) in front of the body (1), by an earth discharge means having an earth discharge adjusting valve (9) that maintains the pressure in the chamber constant, and an earth discharge device (13) consisting of a tube (15) and a main roller (20) that forcibly transports this tube (15) successively in the longitudinal direction is provided in the rear of the valve (9). Since even an earth containing large-diameter boulders can be successively conveyed to the rear by this constitution, a continuous excavation becomes possible even with the closed type shield machine.

Description

明 細 害 削土 ^封式 シ ー ル ド 機械 技 術 分 野  Clear and harmful soil removal ^ Sealed shield Machine technology
こ の 発明 は 大径玉石 の 連続搬送が可能 な排土装置を 有 す る 削土密封式セ ミ シ ー ル ド ま た は 削土密封式 シ ー ル ド 機械 に関 す る 。 背 景 技 術  The present invention relates to a soil-sealing type semi-sealed or soil-sealing type shield machine having a soil discharging device capable of continuously transporting large-diameter cobblestones. Background technology
従来削土密封式 セ ミ シ ー ル ド 工法 ま た は シ ー ル ド エ法 に使用 す る シ ー ル ド機械で は， カ ツ タ へ ッ ド が掘削 し た 土砂 を ス ク リ ュ ウ コ ン ペャ で， カ ツ タ ヘ ッ ド 内 よ り 排土 し た 後ベ ル ト コ ン べャ を経て ズ リ ト 口 ッ コ な ど の 搬送手 段 に よ り 発進立坑 ま で 搬送 し ， 発進立坑 よ り 地上 へ搬 出 し て い た 。  Conventionally, the shield machine used for the semi-sealed semi-shielding method or the shield-d method uses the earth excavated by the cutter head to excavate the soil. After discharging the soil from inside the cutter head by a conveyor, it is transported to a starting shaft by a conveyor such as a slit outlet through a belt conveyor. , And was carried to the ground from the starting shaft.
し か し こ の 方法 で は ズ リ ト ロ ッ コ が坑 内 を 往復 し て い る 閭 シ ー ル ド 機械 は掘削を 休止 し な けれ ばな ら ず， 連続 掘削 がで き な い こ と か ら 泥水加圧式 シ ー ル ド 工法 に 較べ て掘削効率が悪い な ど の問題が あ る 。  However, in this method, the pilgrim shield machine, in which the squirrel's trolley is reciprocating in the mine, must suspend the excavation, and continuous excavation cannot be performed. Therefore, there are problems such as lower excavation efficiency than the mud pressurized shield method.
上記問題を 改善 す る た め ， 掘削 さ れた 土砂 を ス ラ リ 一 化 し て， 真空 ポ ン プや ピ ス ト ン ポ ン プに よ り 輸送管内 を ス ラ リ ー 輸送す る 方法 も 実施 さ れて い る 。  In order to solve the above problems, there is also a method of slurrying excavated earth and sand and transporting the slurry in a transport pipe by vacuum pump or piston pump. It has been implemented .
し か し な が ら こ の 方法で は掘 削管径ゃ設備 ス ペ ー ス の 関係 か ら 口径 の 大 き な 輸送管が坑内 に 設置で き ず， こ の た め 大径玉石 を含 む地層 を掘進す る 場合， 土砂 と と も に 取込ま れ た大径玉石が輪送管で 輪送で き な い と 共 に， 能 率的 に も 县距離輪送 は 困難で あ る な ど の 問題があ っ た 。 However, in this method, a large-diameter transport pipe cannot be installed in the pit due to the relationship between the diameter of the excavated pipe and the equipment space, and the large diameter cobblestone is included. When excavating the stratum, together with sediment The large diameter cobblestones that were taken in could not be transported by rotary pipes, and there were problems such as difficulty in efficiently transporting long distances.
な お輪送管 に よ り 搬送可能な 土砂 の性状 は一般的に 比 重 1. 6 〜 1. 8 , ス ラ ン プ値 1 5〜 20 cm で あ る 。  The properties of the sediment that can be conveyed by the transport pipe are generally 1.6 to 1.8 in specific gravity and 15 to 20 cm in slump value.
従 っ て こ Q発明 は こ の よ う な 従来技術 の問題点を改善 す る 目的でな さ れ た も の で ， 大径玉石の搬送が可能 な 排 土装置を設 け る こ と に よ り 連続掘削 を可能に し た 削土密 封式 シ ー ル ド 機械 を提供 し ょ う と す る も の で あ る 。 発 明 の開示  Therefore, the invention of Q was made to improve such problems of the prior art. Therefore, it is necessary to provide a soil removal device capable of transporting large-diameter cobblestones. This is to provide a hermetically sealed type shield machine that enables continuous drilling. Disclosure of invention
こ の発明 は上記 目的を達成す る た め に ， シ ー ル ド本体 の前部に 面転 自 在 に設 け ら れた カ ツ タ へ ッ ド に よ り 掘削 し た 土砂を， シ ー ル ド 本体前部 の チ ャ ン ノヾ内 に取込ん だ 後， 上記 チ ヤ ン バ 内 の 圧力 を一定に 保持す る 排土調整バ ルブ を有 す る 排土手段 に よ り シ ー ル ド 本体の 後方へ搬送 す る 削土密封式 シ 一 ル ド 機械に お い て， 上記排土 バル ブ の後方に チ ュ ー ブ と ， こ の チ ュ ー ブ を县手方向 へ頫次圧 送す る こ と に よ り チ ュ ー ブ 内 の土砂を後方へ圧送す る メ イ ン 口 ー ラ と よ り な る 排土装置を設 け た も の で あ る 。  In order to achieve the above-mentioned object, the present invention uses a sheet head excavated by a cutter head, which is provided on the front of the shield body, and is provided with a face roll. After taking into the chamber at the front of the body of the rod body, the discharging means with the discharging adjustment valve that keeps the pressure inside the chamber constant is shielded by the discharging means. In a soil-removal-sealed shield machine that is transported to the rear of the main unit, a tube is placed behind the above-mentioned earth-discharge valve, and this tube is fed in the direction of the hand to the next pressure feed. In this way, a main opening roller that feeds the earth and sand inside the tube backward is installed, and an earth discharging device is installed.
こ の構成に よ つ て大径玉石 の 混入 し た 土杪 も 連続的 に 後方へ搬送で き る よ う に な り ， 削土密封式 シ — ル ド機械 で も 連続掘進が可能 と な る 。 ま た 力 タ へ 》リ ド よ り 突設 さ れ た カ ツ タ へ ッ ド の 出代を掘削対象玉石搔 の ½ 以上 に し た こ と に よ り ， 掘削及び 玉石 の掘 り 起 し が効率 よ く 行 え る 。 さ ら に 排土調整バル ブ と 排土装置 の閭 に ク ラ ッ シ ャ を 設 け て ， チ ュ ー ブ径 よ り 大 き な 玉石 を破砕す る こ と に よ り ， チ ュ ー ブ よ り 大径 な玉石が取込 ま れ て も 搬送 を可能 に し た 削土密封式 シ ー ル ド 機械を提供す る も の で あ る 。 図面 の簡単 な 説明 With this configuration, the tomato mixed with large-diameter cobblestone can be continuously transported backward, and continuous excavation is possible even with a soil excavated and sealed shield machine. . In addition, the excavation and cobble digging of the cobblestone were made more than that of the cobblestone 搔 to be excavated, because the projecting head of the cutter head protruding from the lid was set to be more than ½ of the cobblestone 掘 削 to be excavated. It can be done efficiently. In addition, a crusher is set up on the drainage adjusting valve and the drainage device to break the cobble larger than the tube diameter. The purpose of the present invention is to provide a soil cutting and sealing type shield machine capable of transporting even larger diameter cobblestones. Brief description of the drawings
第 1 図 は こ の発明 の 一実施例 の シ ー ル ド本体 の 縦断面 図， 第 2 図 は同正面図， 第 3 図 は第 1 図 m — 1Π 線 に 沿 う 断面図， 第 4 図 は排土装置 の 平面図， 第 5 図 は同側面図， 第 6 図 は第 5 図 VI — 1 VI 線に 沿 う 断面図， 第 7 図 は第 5 図 VII — 1 VE線 に沿 う 断面図， 第 8 図 は第 5 図 ¾ [ 一 線 に 沿 う 断面図， 第 9 図 は第 5 図 K 一 K線 に 沿 う 断面図， 第 1 0図 は こ の発明 の 他 の 実施例を 示す シ ー ル ド 本体 の縦断面図， 第 1 1図 は第 1 0図 X I— X I線 に 沿 う 断面図で あ る 。 発明 を実施す る た め の 最良 の形態 FIG. 1 is a longitudinal sectional view of a shield body according to an embodiment of the present invention, FIG. 2 is a front view of the same, FIG. 3 is a sectional view taken along the line m-1 in FIG. Is a plan view of the earth removal device, Fig. 5 is a side view, Fig. 6 is a cross-sectional view along the line VI- 1 VI, and Fig. 7 is a cross-section along the line VI-VII- 1 VE. Fig. 8, Fig. 8 is a cross-sectional view along the line in Fig. 5, Fig. 9 is a cross-sectional view along the line K-K in Fig. 9, and Fig. 10 is another embodiment of the present invention. The longitudinal section of the shield body shown in Fig. 11 is a sectional view along the line XI-XI in Fig. 10. BEST MODE FOR CARRYING OUT THE INVENTION
こ の発 明 の 実施例を 以下 に図面を 参照 し て 詳述す る 。 第 1 図 は削土密封式 セ ミ シ ー ル ド 工法 に 使用 す る シ ー ル ド 機械 を示す も の で ， 1 は方向修正 ジ ャ ツ キ 6 に よ り 屈折 自 在 な シ ー ル ド 本体， 2 は シ ー ル ド 本体 1 の 前部 に 設 け ら れ た 力 ッ タ へ ッ ド で ， 力 ッ タ へ ッ ド駆動モ ー タ 3 に よ り 減速機 4 を介 し て 回 転軸 5 を 中心 に 面転 さ れ る よ う に な つ て い る 。  An embodiment of the present invention will be described below in detail with reference to the drawings. Fig. 1 shows the shield machine used for the earth-seal type semi-shield construction method, where 1 is a shield that is refracted by the direction correction jacket 6 The main body 2 is a power head mounted on the front of the shield main body 1, and is rotated via the reduction gear 4 by the power head driving motor 3. The surface is turned around the axis 5.
上記 力 ッ タ へ ッ ド 2 は第 2 図 に示 す よ う に ほ ぼ十字形 を な す ス ポ ー ク 2 a よ り 形成 さ れて い て ， こ れ ら ス ポ ー ク 2 a の 前面 に 半径方向 に 間隔 を お い て 複数 の 力 ッ タ 2 b が突設 さ れ， こ れ ら カ ツ タ 2 に よ り シ ー ル ド 本体 1 前方 の切羽 の掘削 と 大痊玉石 の 堀 り 起 し を行 な う よ う に な て い る 。 As shown in FIG. 2, the head 2 is formed of spokes 2a having a substantially cross shape, and the spoke heads 2a are formed by the spokes 2a. A plurality of force gauges 2 spaced radially on the front b is protruded, and these cutters 2 are used to excavate the face in front of the shield body 1 and to dig up the oak cobblestone.
な お各 力 'ク タ 2 b の 出代 は大搔玉石 の掘 り 起 し と ， シ ー ル ド本体 1 の 前部 に設 け ら れた チ ヤ ン バ 1 a 内 へ の 取込みが効率 よ く 行え る よ う に 対象玉石径の ½以上 に 設 定 さ れて い る 。  In addition, the rise of each power collector 2b is due to the digging of the cobblestone and the incorporation into the chamber 1a provided at the front of the shield body 1. The diameter of the target boulder is set to 玉 or more so that it can be performed well.
ま た 上記画転軸 5 内 に は通路 5 a が形成 さ れて い て ， こ の 通路 5 a の前端 は ス ポ ー ク 2 a 内 に 形成 さ れ た通路 2 c 内 に 連通 さ れて い る 。  A passage 5a is formed in the image transfer shaft 5, and a front end of the passage 5a is communicated with a passage 2c formed in the spoke 2a. Yes.
上記面転鋤 5 内 に形成 さ れた 通路 5 a の 先端及び各 ス ポ ー ク 2 a 內 に設 け ら れた 通路 2 c の先端 は ， 面転軸 5 の先端部及び ス ポ ー ク 2 a 先端 に取付 け ら れ た 力 ッ タ 2 b の 前面 に そ れぞ れ開 口 さ れて い て ， 図示 し な い 泥漿材 供袷管よ り 面転链手 7 を介 し て 面転軸 5 内 の 通路 5 a へ 供給 さ れ た泥漿材 が， こ れ ら 開 口 よ り 掘削 さ れた 土砂內 へ瞳 出 さ れ る よ う に ¾f つ て い る 。  The tip of the passage 5a formed in the surface spade 5 and the tip of the passage 2c provided in each of the spokes 2a ， are the tip of the surface turning shaft 5 and the spoke. 2a Opened in front of a cutter 2b attached to the end, respectively, and is opened from a pipe provided with a slurry material (not shown) through a surface contact 7 from a pipe provided with a slurry material. The sludge supplied to the passage 5a in the shaft 5 is formed so that the pupil is exposed to the excavated earth and sand from the opening.
—方 シ ー ル ド本体 1 の前部に 設 け ら れ た チ ャ ン バ 1 a の下部に は排土管 8 の 一端が開 口 さ れて お り ， 排土管 8 の他端側 は シ ー ル ド 本体 1 内 に 設 け ら れ た ビ ン チ 弁な ど の排土铜整バ ル ブ 9 に 接続 さ れて い る 。  One end of the discharge pipe 8 is opened at the lower part of the chamber 1a installed at the front of the shield body 1, and the other end of the discharge pipe 8 is closed at the other end. It is connected to a discharge control valve 9 such as a binder valve installed in the main body 1.
ま た排土管 8 の 他端側上部に は排土管 8 が詰 つ た場合 に水 な ど を注入 し て 詰 り を 除去す る 詰 り 除去管 1 0が設 け ら れて い る と共に ， 排土調整バルブ 9 の 後端 は点検ゃ異 物を 取除 く 際 に作業 し 易 い よ う に設 け た 異物取除 き 箱 1 2 を介 して 排土装置 1 3が接続 さ れて い る 。 上 記排 土装 置 13は 第 3 図 以 下 に 示 す よ う に ， 輸 送管 14 と ほ ぼ同 じ 口 径 の チ ュ 一 ブ 15を 有 し て い る 。 A clogging removal pipe 10 is provided at the upper end of the other end of the discharging pipe 8 to inject water or the like to remove the clogging when the discharging pipe 8 is clogged. The rear end of the discharge control valve 9 is connected to a discharge device 13 via a foreign substance removal box 12 installed to facilitate inspection and removal of foreign matter. Yes. As shown in Fig. 3 and below, the above-mentioned earth removal device 13 has a tube 15 having a diameter almost the same as that of the transport pipe 14.
上 記 チ ュ ー ブ 15は ゴ ム な ど の 弾性 材 に よ り 形成 さ れ て い る と 共 に ， チ ュ ー ブ 15の 雨側 に は フ レ ー ム 13 a が設 け ら れ て い て ， こ れ ら フ レ ー ム 13 a の 前後 端 に 従動 軸 16 a 及 び 駆動 軸 17 a を 介 し て 遊 動 ス プ ロ ケ ッ ト 16及 び 駆動 ス プ ロ ケ ッ ト 17が 面 動 自 在 に 支承 さ れ て い る 。  The tube 15 is made of an elastic material such as rubber, and a frame 13a is provided on the rain side of the tube 15. At the front and rear ends of these frames 13a, there are a floating sprocket 16 and a driving sprocket 17 via a driven shaft 16a and a driving shaft 17a. It is supported by the movement itself.
そ し て 上記 遊動 ス プ ロ ケ ッ ト 16及 び 駆動 ス プ ロ ケ ッ ト 17の 間 に は 無 端 状 の チ — ン 18が捲 装 さ れ て い て ， 駆 動 軸 17 a に 伝導 チ ュ ー ン 19を 介 し て 接 続 さ れ た 油圧 モ ー タ よ り な る 面 転 駆動 源 25に よ り こ れ ら チ 一 ン 18が 面 転 さ れ る よ う に な っ て い る と 共 に ， チ ェ ー ン 18間 に は 上記 チ ュ 一 ブ 15を 圧 迫す る メ ィ ン ロ ー ラ 20の 軸 20 a 両端 が 支 承 さ れ て い る 。  An endless chain 18 is wound between the floating sprocket 16 and the driving sprocket 17, and is connected to the driving shaft 17 a. These wheels 18 are to be surface-turned by the surface-drive drive source 25 which is a hydraulic motor connected via the chain 19. In addition, both ends of the shaft 20a of the main roller 20 that presses the tube 15 are supported between the chains 18.
上 記 メ ィ ン ロ ー ラ 20は チ ェ ー ン 18の 例 え ば 2 箇 所 に 取 付 け ら れ た も の で ， 第 6 図 に 示 す よ う に ほ ぼ 楕 円 形 に 形 成 さ れ て い る と 共 に ， チ ュ ー ブ 15を 圧迫 す る 際 チ ュ ー ブ 15を 傷 め な い よ う に 外 周 面 に ゴ ム ラ ィ 二 ン グ 層 20 b が施 さ れ て い る 。  The main roller 20 is mounted in two places, for example, in the chain 18 and has a substantially elliptical shape as shown in FIG. In addition, a rubber layer 20 b is provided on the outer peripheral surface so as not to damage the tube 15 when compressing the tube 15. ing .
ま た メ イ ン ロ ー ラ 20の 軸 20 a に は フ レ ー ム 13 a の 周 囲 に 沿 っ て 設 け ら れ た ガ イ ド レ ー ル 13 b 上 を 転 動 す る 口 一 ラ 21が面 転 自 在 に 支承 さ れ て い る と 共 に ， チ ュ ー ブ 15の 下側 に は チ ュ ー ブ 15を 保護 す る ゴ ム な ど の 緩 衝材 22が 敷 設 さ れて い る 。  In addition, the shaft 20a of the main roller 20 has an orifice that rolls on a guide rail 13b provided along the periphery of the frame 13a. 21 is supported by the surface rolling itself, and a cushioning material 22 such as rubber for protecting the tube 15 is laid under the tube 15. ing .
さ ら に 上記 フ レ ー ム 13 a は シ ー ル ド 本 体 1 に 接 続 さ れ た 管 钛 1 b の 内 面 に 突 設 さ れ た ブ ラ ケ ッ ト 1 c に ガ イ ド 杆 23を介 し て 第 7 図 に 示す よ う に吊持 さ れて い る と 共 に ， 各吊下 げ杆 23に は フ レ ー ム 13 a を下方へ付勢す る 圧縮 ば ね 24が嵌揷 さ れて い る 。 Further, the frame 13a is guided to a bracket 1c protruding from the inner surface of the pipe 1b connected to the shield body 1. As shown in FIG. 7, each of the hanging rods 23 is compressed with a compression spring for urging the frame 13 a downward, while being suspended through the rods 23 as shown in FIG. Is fitted.
次 に作用 去 説明 す る と ， シ ー ル ド 本体 1 の 掘進 に 伴 い カ ツ タ ヘ ッ ド 2 が掘削 し た 土砂 は， 噴出 さ れ た 泥漿水 と 攙拌混合 さ れて流動水 を有す る 不透水性土砂 と な っ て ， 切羽 土圧 + or の圧力を保持 し た 状態で チ ャ ン バ 1 a 内 へ 取込 ま れ る。  Next, the sediment excavated by the cutter head 2 along with the excavation of the shield body 1 is mixed with the ejected muddy water to mix the flowing water. It becomes impervious sediment and is taken into the chamber 1a while maintaining the pressure of the face earth pressure + or.
チ ャ ン バ 1 a 内 に取込ま れた 土砂 は排土装置 13の メ ィ ン ロ ー ラ 20が チ ュ ー ブ 15を 圧迫 し， そ の 後チ ュ ー ブ 15が 復元 す る 際に 発生す る 背圧 と ， チ ャ ン バ l a 内 の 圧力 に よ り 排土管 8 を介 し て排土装置 13の チ ュ ー ブ 15内 へ送 り 込ま れる 。  The earth and sand taken into the chamber 1a is compressed by the main roller 20 of the earth discharging device 13 which presses the tube 15, and then when the tube 15 is restored. Due to the generated back pressure and the pressure in the chamber la, the air is sent into the tube 15 of the earth discharging device 13 through the earth discharging pipe 8.
排土装置 13と 排土管 8 の 簡に は チ ャ ン バ 1 a 內 の圧力 を一定に 保持す る 排土調整バ ル ブ 9 が設 け ら れて い る と 共 に ， チ ュ' ブ 15内 に チ ヤ ン バ 1 a よ り 送込 ま れ た土砂 や大柽玉 14は， チ ー ン 18に よ り 面転 さ れ る メ イ ン ロ ー ラ 20に よ り チ ュ ー ブ 15が圧迫 さ れ る こ と に よ り ， メ イ ン 口 一 ラ 20の移動 と 共に チ ュ 一 ブ 15内 を後方へ圧送 さ れ る 。  In brief, the discharge device 13 and the discharge pipe 8 are provided with a discharge control valve 9 for maintaining the pressure of the chamber 1a 一定 at a constant level. The earth and sand 14 delivered from the chamber 1 a into the inside 15 are turned into a tube by the main roller 20 which is turned by the chain 18. Due to the compression of 15, the inside of the tube 15 is pumped backward along with the movement of the main opening 20.
ま た メ ィ ン ロ ー ラ 20がチ ュ ー ブ 15の後端 に 達す る と ， 次の メ イ ン ロ ー ラ 20がチ ュ ー ブ 15の 前端 に達 し て チ ュ ー ブ 15の圧迫を蘭始す る の で ， 土砂や， 土砂 に 混入 し た 大 径玉石を 連続的に 圧送 す る こ と がで き な い よ う に な る 。  When the main roller 20 reaches the rear end of the tube 15, the next main roller 20 reaches the front end of the tube 15 and the main roller 20 reaches the rear end of the tube 15. Since pressure starts, it will not be possible to continuously pump earth and sand or large-diameter boulders mixed in the earth and sand.
な お县期藺使用 し て い る 間に チ ュ ー ブ 15の 復元性が低 下 し て も ， チ ャ ン パ l a 内 の 圧力 よ り 土砂が押込 ま れ る の で ， 土砂の 輪送が確実に 行え る 。 ま た フ レ ー ム 13 a 全体が圧縮 ばね 24に よ り チ ュ ー ブ 15 を圧迫す る 方 向へ付勢 さ れて い る の で ， メ イ ン ロ ー ラ 20 が玉石を乗越え て 進行す る の を防止 す る こ と がで き ， こ れに よ っ て 大径玉石 も 確実 に 輸送す る こ と がで き る 。 Even if the resilience of the tube 15 is reduced while the rush is being used, the sediment is pushed in by the pressure in the chamber la. Can be performed reliably. Also, since the entire frame 13a is urged by the compression spring 24 in the direction of pressing the tube 15, the main roller 20 rides over the boulder. It can be prevented from advancing, which ensures that large-diameter cobblestones can also be transported.
一方上記実施例 の排土装置 13で は玉石 の径がチ ュ ー ブ 15の 内径 よ り 大径 な場合， 土砂 の輸送が困難 と な る 。  On the other hand, if the diameter of the boulder is larger than the inner diameter of the tube 15 in the earth discharging device 13 of the above embodiment, the transportation of the earth and sand becomes difficult.
そ こ で 第 10図及 び第 11図 に示す よ う に ， 排土装置 13の 土砂搬入側に 異物取除 き 箱 12に 代え て ク ラ ッ シ ャ 28を 設 けて も よ い 。  Therefore, as shown in FIGS. 10 and 11, a classifier 28 may be provided instead of the foreign matter removal box 12 on the earth / sand carrying side of the earth removal device 13.
上記 ク ラ ッ シ ャ 28は チ ュ ー ブ 15よ り や や大径な 管体 28 a の 雨側 に各 2 本， 計 4 本 の 油圧 シ リ ン ダ 29がボ ト ム 側 を管体 28 a へ 向 け て 設置 さ れて い る 。  The above-mentioned crusher 28 has a total of four hydraulic cylinders 29 on the rain side of a tube 28a slightly larger in diameter than the tube 15, and a total of four hydraulic cylinders 29 on the bottom side. Installed for 28a.
管体 28 a に は油圧 シ リ ン ダ 29の ボ ト ム 側が管体 28 a 內 へ出 没す る 円孔 28 b が開 口 さ れて い る と 共 に ， 油圧 シ リ ン ダ 29は ガ イ ド ブ ッ シ ュ 30に案内 さ れて 管体 28 a 内 へ進 退動 で き る よ う に な つ て い る 。  The cylinder 28a is provided with a circular hole 28b in which the bottom side of the hydraulic cylinder 29 projects into and out of the tube 28a 內, and the hydraulic cylinder 29 is It is guided by the guide bush 30 so as to be able to advance and retreat into the tube 28a.
ま た油圧 シ リ ン ダ 28の ボ ト ム 側 に は玉石を破砕す る 鋸 刃状 の破砕刃 29 a が形成 さ れて い る と 共 に， 油圧 シ リ ン ダ 29の へ ッ ド 側 よ り 突 出 さ れた ビ ス ト ン 杆 29 b の 先端 は， ブ ラ ケ ッ ト 28 c に ピ ン 31を介 し て枢着 さ れて い て ， 油圧 シ リ ン ダ 29の へ ッ ド 側 へ油圧を 供袷す る こ と に よ り ， 油 圧 シ リ ン ダ 29が管体 28 a 内 へ突出 し て ， 管体 28 a 内 の 玉 石を破砕刃 29 a が破砕す る よ う に な つ て い る 。  In addition, a saw blade-shaped crushing blade 29 a for crushing the cobblestone is formed on the bottom side of the hydraulic cylinder 28, and the head side of the hydraulic cylinder 29 is formed. The tip of the projecting rod 29 b that is further protruded is pivotally connected to the bracket 28 c via the pin 31, and the head of the hydraulic cylinder 29 is connected to the bracket 28 c via the pin 31. The hydraulic cylinder 29 protrudes into the pipe 28a by supplying hydraulic pressure to the pipe side, and the crushing blade 29a crushes the cobblestone in the pipe 28a. That's right.
な お油圧 シ リ ン ダ 29の ス ト 口 一 ク は玉石を 1 / 2〜 ： L /3 程度 の 大 き さ に 割岩す る だ けで排土装置 13に よ り 輸送可 能 と な る た め 大 き く す る 必要 は な い 。 ま た 図 中 32は点検 蓋で あ る 。 The storage port of the hydraulic cylinder 29 can be transported by the earth removal device 13 simply by breaking the boulder to a size of about 1/2 to L / 3. It does not need to be large. Check 32 in the figure. It is a lid.
次 に上記 ^ ラ ッ シ ャ 28の 作用 を説 明す る と ， カ ツ タ へ ッ ド 2 に よ り 掘削 さ れて チ ャ ン ノ、' 1 a 内 に取込ま れた土 砂 は 土管 8 に よ り 排土装置 1 3へ と 送 り 込ま れ る が， 土 砂中 に チ ュ ー ブ 1 5よ り 大径 な玉石が混入 し て い る と ク ラ ッ シ ャ 28の管体 28 a 内 で詰 ま っ て そ れ以上進 ま な く な る < こ の状憨に な っ た ら 排土調整用 バル ブ 9 を 閉鎮 す る と ， 玉石が土砂 と と も に 管体 29 a 內 で 固定 さ れ る の で ， 油圧 シ リ ン ダ 29の へ ッ ド 側 へ油圧を供给 し て 油圧 シ リ ン ダ 29 を伸 县す る と ， 油圧 シ リ ン ダ 2 9が管体 2 9 a 内 へ雨側 よ り 突出 し， 破砕刃 29 a の簡で 玉石を狭圧 し て こ れを 破碎す る β Next, the operation of the ^ lasher 28 will be described. The soil excavated by the cutter head 2 and taken into the channo, '1a is an earthen pipe. 8 to the earth removal device 13, but if dirt larger than the tube 15 is mixed in the earth and sand, the pipe of the classer 28 is removed. 28 c. Blocked inside the a and could not go any further. <In this condition, when the discharge control valve 9 was closed, the cobblestone was removed together with the earth and sand. When the hydraulic cylinder 29 is extended by applying hydraulic pressure to the head side of the hydraulic cylinder 29, the hydraulic cylinder 29 is connected to the pipe. body protruding Ri by rain side to the 2 9 in a, Yabu碎the will come to Sema圧a boulder in the easy crushing blade 29 a β
玉石の 破砕が完了 し た ら ， 排土調整バ ル ブ 9 を 開放す る こ と に よ り 破砕 さ れ た 玉石が土砂 と と も に 排土装置 1 3 の チ ュ ー ブ 1 5内へ と 送 り 込 ま れ， 排土装置 1 3に よ り 輪送 管 1 4へ と 圧送 さ れ る 。  After the crushing of the boulders is completed, the crushed boulders are released together with the earth and sand into the tubes 15 of the discharging device 13 by opening the discharge control valve 9. , And is pressure-fed to the loop pipe 14 by the earth removal device 13.
以下 $石が ク ラ ッ シ ャ 28内 に 詰 る 毎 に 上記破砕動作を 緣返す こ と に よ り ， チ ュ ー ブ 1 5よ り 大径 な玉石が取込 ま れて も 土砂の' 接送が行え る よ う に な る 。 産業上 の 利用 可能性  The above-mentioned crushing operation is repeated every time the $ stone is clogged in the crusher 28, so that even if a cobble larger in diameter than the tube 15 is taken in, the sediment is removed. You will be able to send mail. Industrial applicability
こ の発明 は 以 上詳述 し た よ う に ， メ イ ン ロ ー ラ に よ り チ ュ ー ブを县手方 向 に 圧迫 し な が ら 土砂 の圧送を 行 う 排 土装置を設 け た こ と に よ り ， 大径玉石が混入 し た 土砂で も 連続的 に 4锻送す る こ と が で き ， こ れ に よ つ て 削土密封 式セ ミ シ ー ル ド や 削土密封式 シ ー ル ドエ法に よ っ て も 連 続 し て掘 i 力 可能 に な る と 共に ， 従 来 の ズ リ ト ロ ッ コ の よ う に間欠的 に搬送す る も の に 比べ て輸送効率を 大幅 に 向上 さ せ る こ と がで き る 。 In this invention, as described in detail above, an earth removal device for pumping the earth and sand while compressing the tube in the hand direction by the main roller is provided. As a result, even soil with large diameter cobblestone can be continuously fed for 4 mm, which enables the soil to be sealed and sealed. Even with the sealed shield method In addition to the ability to excavate continuously, the transport efficiency can be greatly improved compared to the conventional intermittently transported scotch-rocco. Wear .
ま た县距離 の 圧送が可能で め と 共に ， 輪送管 に よ り 圧送す る た め ， に よ り 坑内 が汚損 さ れ る こ と も な い さ ら に カ ツ タ へ に 設 け ら れた カ ツ タ の 出代 （突出 量） を大 き く す る に よ つ て， 大径玉石を 含む地層 で の掘削 に 際 し て ， 掘削 と 玉石の 掘 り 起 し が効率 よ く 行 な え る と 共 に ， 土砂中 に 注入 さ れ た 泥漿材 の 攙拌混合 も 行 な え る た め ， 別に 攪拌手段 を設 け る 必要 も な い  In addition to being capable of pumping over a long distance, the pumping is also performed by means of a transport pipe, so that the inside of the pit is not contaminated by, so that it can be installed in the cutter. When the excavation of a stratum containing large-diameter cobble stones is performed efficiently, excavation and cobble digging can be performed efficiently by increasing the protruding amount (projection amount) of the cut cutters. In addition, since it is possible to mix and mix the mud material injected into the sediment, it is not necessary to provide a separate stirring means.
し か も 排土装置 の土砂搬入側 に ク フ ッ シ ャ を設 けれ ば チ ュ ー ブ よ り 大径 な 玉石が搬入 さ れて も ， ク ラ ッ シ ャ に よ り 破砕 し て か ら 搬送で き る た め， 玉石が詰 つ て 土砂 の 搬送が困難 に な る な ど の お そ れ も な い  However, if a kushasher is installed on the sediment loading side of the earth removal device, even if a cobble larger in diameter than the tube is brought in, it will be crushed by the crusher. Because it can be transported, there is no danger that it will be difficult to transport sediment due to clogged cobblestones.
従 っ て こ の 発明 は削土密封式 セ ミ シ一ル ド 工法 ま た は シ一ル ド 工法 に 用 い る シ一ル機械 に 用 い て 甚 だ好適で あ る 。  Therefore, the present invention is extremely suitable for use in a sealing machine used in a soil-sealing semi-shield method or a shield method.

Claims

.4 /02140 PCT/JP90/00963 - 10 - 請 求 の 範 囲 .4 / 02140 PCT / JP90 / 00963-10-Scope of Claim
( 1 ) シ ー ル ド本体の 前部 に 面 転 自 在に 設 け ら れ た 力 ッ タ ヘ ッ ド に よ り掘削 し た土砂を， シ ー ル ド本体前部の チ ヤ ン バ内 に取込ん だ後， 上記 チ ャ ン バ内 の圧力 を一定 に 保持す る 排土調整バル ブを有す る 排土手段に よ り シ ー ル ド本体 の 後方 へ搬送す る 削土密封式 シ ー ル ド 機械 に お い て， 上記排土調整バル ブ の 後方 に， チ ュ ー ブ と こ の チ ュ 一ブ を县手方向へ頫次圧送す る メ イ ン ロ ー ラ と よ り な る 排土装置 を設 けた こ と を特徴 と す る 削土密封式 シ ー ル ド 機 (1) At the front of the shield body, the earth and sand excavated by the force head, which was installed on the surface of the shield itself, is placed in the chamber at the front of the shield body. After being taken into the chamber, it is transported to the rear of the shield body by a discharging means that has a discharging adjustment valve that keeps the pressure in the chamber constant. In a shield machine, a tube and a main roller that feeds this tube in the hand direction to the rear of the above-mentioned discharge adjustment valve. Soil removal type shield machine characterized by the installation of a suitable earth removal device
( 2 Γ上記 チ ュ ー ブ の 县手方向 に沿 っ て 設 け た無端状 の チ ヱ ー ン に少 な く と も 2 偭 の メ ィ ン ロ ー ラ を取付 け た 請 求 の 範西第 1 項 の シ ー ル ド 機械。  (2) At least two main rollers attached to an endless chain along the direction of the length of the above-mentioned tube. The shielded machine of paragraph 1.
( 3 ) 上記排土装置 と 排土調整バ ル ブ の 間 に 異物取除 き 箱 を 設 け た請求の 範囲第 1 項の シ ー ル ド 機械。  (3) The shield machine according to claim 1, wherein a foreign substance removing box is provided between the earth discharging device and the earth discharging adjusting valve.
( ) カ ツ タ ヘ ッ ド に 突設 さ れ た 力 ッ タ の 出 代を掘削対 象玉石径 の ½ 以上 と し た請求の 範面第 1 項の シ一ル ド 機  (1) The shield machine according to claim 1, wherein the head of the cutter protruding from the cutter head has a diameter of not less than の of the diameter of the boulder to be excavated.
( 5 ) 排土調整バ ル ブ と 排土装置の 藺に チ ュ ー ブ よ り 径 の大 き い 玉石を破砕す る ク ラ ッ シ ャ を設 けた , 請求 の 範 囲第 1 項 の シ ー ル ド機械。 (5) A crusher for crushing a cobble larger than the tube is installed in the ash of the earth removal adjustment valve and the earth removal device. Old machinery.
PCT/JP1990/000963 1989-07-31 1990-07-27 Closed type shield machine WO1991002140A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1/196551 1989-07-31
JP1196551A JP2524835B2 (en) 1989-07-31 1989-07-31 Shield machine

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WO1991002140A1 true WO1991002140A1 (en) 1991-02-21

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Cited By (2)

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US6698844B2 (en) * 2001-12-26 2004-03-02 Taisei Corporation Earth discharging device for upward-facing shield machine
CN115784712A (en) * 2022-11-11 2023-03-14 陕西铁路工程职业技术学院 Subway shield muck baked brick and production method thereof

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JP2001355388A (en) * 2000-06-14 2001-12-26 San Shield Kk Pipe jacking machine
JP4651867B2 (en) * 2001-06-20 2011-03-16 株式会社アルファシビルエンジニアリング Cutting edge drilling equipment
JP4902328B2 (en) * 2006-12-05 2012-03-21 株式会社フジタ Method for maintaining pressure in chamber when starting shield machine
CN104533438A (en) * 2014-12-29 2015-04-22 上海市基础工程集团有限公司 One-way valve type nozzle for shield machine slurry supply and water supply system

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JPS58146696A (en) * 1982-02-24 1983-09-01 株式会社奥村組 Crushing and discharging of pebble in muddy water shield construction method
JPS5941276Y2 (en) * 1979-02-22 1984-11-27 日立造船株式会社 Earth removal device for shield excavator
JPS6340554Y2 (en) * 1982-02-18 1988-10-24

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JPS55126398U (en) * 1979-03-02 1980-09-06
JPS5943597U (en) * 1982-09-14 1984-03-22 三菱重工業株式会社 Earth removal device for shield type tunnel excavator
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JPS5941276Y2 (en) * 1979-02-22 1984-11-27 日立造船株式会社 Earth removal device for shield excavator
JPS5850297A (en) * 1981-09-22 1983-03-24 日立建機株式会社 Shield excavator
JPS6340554Y2 (en) * 1982-02-18 1988-10-24
JPS58146696A (en) * 1982-02-24 1983-09-01 株式会社奥村組 Crushing and discharging of pebble in muddy water shield construction method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6698844B2 (en) * 2001-12-26 2004-03-02 Taisei Corporation Earth discharging device for upward-facing shield machine
CN115784712A (en) * 2022-11-11 2023-03-14 陕西铁路工程职业技术学院 Subway shield muck baked brick and production method thereof

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JPH0363400A (en) 1991-03-19
JP2524835B2 (en) 1996-08-14

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