JP3648048B2 - Mobile jetty - Google Patents

Mobile jetty Download PDF

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Publication number
JP3648048B2
JP3648048B2 JP08383398A JP8383398A JP3648048B2 JP 3648048 B2 JP3648048 B2 JP 3648048B2 JP 08383398 A JP08383398 A JP 08383398A JP 8383398 A JP8383398 A JP 8383398A JP 3648048 B2 JP3648048 B2 JP 3648048B2
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JP
Japan
Prior art keywords
gantry
jetty
crawler
tunnel
wheel
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
JP08383398A
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Japanese (ja)
Other versions
JPH11280400A (en
Inventor
俊文 江藤
宗英 江藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kumagai Gumi Co Ltd
Original Assignee
Kumagai Gumi Co Ltd
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 Kumagai Gumi Co Ltd filed Critical Kumagai Gumi Co Ltd
Priority to JP08383398A priority Critical patent/JP3648048B2/en
Publication of JPH11280400A publication Critical patent/JPH11280400A/en
Application granted granted Critical
Publication of JP3648048B2 publication Critical patent/JP3648048B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【0001】
【発明の属する技術分野】
本発明は移動式桟橋に関するものであり、特に、トンネルのインバート施工に使用する移動式桟橋に関するものである。
【0002】
【従来の技術】
従来、トンネル工事に於いてインバート施工する際、切羽からのずりを搬出する作業車両を通過させるために、図6に示すような移動式桟橋1を使用することが知られている。同図に於いて、2は車両走行用の架台であり、該架台2の下部に前後進用の車輪3とジャッキ4が装着され、該架台2の前後(同図にて左側が前方向、即ち切羽側とする)に傾斜板5が設けられている。
【0003】
前記移動式桟橋1はトンネルの片方側に設置され、架台2の側方即ちトンネルの他方側をインバート施工する。そして、トンネルの他方側の施工が終了した後に、前記移動式桟橋1をトンネルの他方側へ横移動させ、前記トンネルの片方側をインバート施工する。この間、作業車両は傾斜板5を上って架台2の上面を走行する。
【0004】
前記移動式桟橋1を横移動させるには、先ず前後の吊上げ用シリンダ6を収縮して傾斜板5の先端部を吊上げ、図7(a)に示すように、ジャッキ4を伸長して架台2を上昇する。そして、車輪3を地盤から浮上させた状態で、図7(b)に示すように、横行用シリンダ7を収縮して車輪フレーム8を横行させる。
【0005】
続いて、図7(c)に示すように、前記ジャッキ4を収縮して架台2を下降し、車輪3を地盤に接地する。斯かる状態で、横行用シリンダ7を伸長すれば、図7(d)に示すように、架台2が横行して車輪フレーム8の上部に引き寄せられる。上記図7(a)乃至(d)の動作を繰り返すことにより、前記移動式桟橋1がトンネルの片方側から他方側へ、或いは他方側から片方側へと横移動する。
【0006】
【発明が解決しようとする課題】
しかし、ジャッキと横行用シリンダの作動により、車輪フレームと架台とを交互に横行させながら移動式桟橋を横移動させるには、30〜40分程度の時間を要するので作業効率が良好ではない。また、車輪フレームと架台とがずれた状態となるため安定性が悪く、横移動時に若干の危険性を伴っていた。更に、横行部分の剛性を高めるため製作コストが高騰する。
【0007】
そこで、主としてトンネルのインバート施工に使用される移動式桟橋を、簡易且つ迅速に横移動できるようにするために解決すべき技術的課題が生じてくるのであり、本発明はこの課題を解決することを目的とする。
【0008】
【課題を解決するための手段】
本発明は上記目的を達成するために提案されたものであり、車両走行用の架台の下部に複数個のジャッキを設け、該ジャッキの下端部に前後進用の車輪を装着するとともに、前記架台の下部に横移動用のクローラを設け、更に、架台上面と地盤との間に架設される傾斜板を前記架台の前後に取り付けた移動式桟橋を提供するものである。
【0009】
【発明の実施の形態】
以下、本発明の一実施の形態を図面に従って詳述する。図1乃至図3に於いて、符号11はトンネルのインバート施工に使用する移動式桟橋を示し、該移動式桟橋11には車両走行用の架台12が設けられており、該架台12の下部に複数個のジャッキ13を設け、該ジャッキ13の下端部に前後進用の車輪14a,14bを装着する。該ジャッキ13は少なくとも架台12下部の四隅に設け、切羽側(図1にて左側が切羽側、即ち前方向とする)の車輪14aはタイヤを使用し、坑口側の車輪14bは鉄輪を使用しており、各車輪14a,14bは架台12の自重を支えられる強度を有している。
【0010】
また、前記架台12の下部には横移動用のクローラ15が設けられている。該クローラ15は前記車輪14a,14bの近傍に横向きに取り付けられ、油圧モータによって駆動される。同図はインバート掘削時或いはインバートコンクリート打設時の移動式桟橋11の状態を示し、前記ジャッキ13を伸長して車輪14a,14bが接地しており、架台12が上昇して該クローラ15は地盤から離反している。
【0011】
一方、前記架台12の前後に、架台12の上面と地盤との間に架設される傾斜板16を夫々取り付けてあり、ワイヤロープ17の巻上げにより該傾斜板16の先端部を吊り上げ可能に形成してある。尚、図示は省略するが、前記架台12と傾斜板16の夫々の下方部には、車両通行時の補強材として所々に支柱を仮設しておく。
【0012】
前記移動式桟橋11はトンネルの片方側に設置され、架台12の側方即ちトンネルの他方側をインバート施工する。この間、作業車両は一方の傾斜板16を上って架台12の上面を走行し、反対側の傾斜板16から下りるので、インバート施工中であっても、作業車両の通行に支障を来すことがない。そして、トンネルの他方側の施工が終了した後に、前記移動式桟橋11をトンネルの他方側へ横移動させ、前記トンネルの片方側をインバート施工する。
【0013】
前記移動式桟橋11を横移動させるには、図4及び図5に示すように、前記ジャッキ13を収縮して架台12を下降させることにより、クローラ15が接地して車輪14a,14bが地盤から浮上する。このとき、架台12の自重はクローラ15によって支える。クローラ15の接地に前後して、前記ワイヤロープ17を巻上げて傾斜板16の先端部を地盤から離反させる。斯かる状態でクローラ15を駆動すれば、架台12及び車輪14a,14b等が一体に移動し、前記移動式桟橋11をトンネルの他方側へ横移動させることができる。
【0014】
該クローラ15の駆動によって移動式桟橋11が所定の位置へ移動した後は、図1乃至図3に示したように、再びジャッキ13を伸長して車輪14a,14bを接地させ、クローラ15が地盤から離反する位置まで架台12を上昇させる。更に、前記ワイヤロープ17を巻下げて傾斜板16の先端部を地盤に接地させれば、移動式桟橋11がインバート施工時の状態に復帰して、作業車両が通行可能となる。
【0015】
このように、移動式桟橋11を簡単に横移動できるので、インバート施工の際に架台12からシュートを使用して生コンを打設することができ、従来必要とされていたコンクリートポンプ車が不要となる。また、生コンの打設中であっても移動式桟橋11の横移動が可能であるため、架台12直下の打設を行うことによって打設時の労力を低減できる。
【0016】
尚、本発明は、本発明の精神を逸脱しない限り種々の改変を為すことができ、そして、本発明が該改変されたものに及ぶことは当然である。
【0017】
【発明の効果】
以上説明したように、本発明の移動用桟橋は架台の下部に設けたジャッキの下端部に前後進用の車輪を装着するとともに、該架台の下部に横移動用のクローラを設けてあるので、ジャッキを収縮した状態ではクローラが接地して架台を支え、車輪が地盤から浮上する。斯かる状態でクローラを駆動することにより、移動用桟橋を簡易且つ迅速に横移動させることができる。従って、横移動の時間が著しく短縮され、作業効率が向上する。
【0018】
また、横移動時はクローラによって架台を支えるため、凹凸のある地盤や軟弱な地盤であっても極めて安定して架台を移動でき、横移動時の安全性が高い。更に、汎用のクローラを利用できるので横行部を安価に形成でき、移動用桟橋のコストダウンに寄与できる等、正に諸種の効果を奏する発明である。
【図面の簡単な説明】
【図1】本発明の一実施の形態を示し、インバート施工時の移動用桟橋の一部切欠側面図。
【図2】図1に於ける移動用桟橋後部の要部側面図。
【図3】図2の傾斜板を省略したA−A線矢視図。
【図4】横移動時の移動用桟橋後部の要部側面図。
【図5】図4の傾斜板を省略したB−B線矢視図。
【図6】従来の移動用桟橋の一部切欠側面図。
【図7】図6のC−C線位置に於いて従来の移動用桟橋の横移動過程を示す解説図。
【符号の説明】
11 移動式桟橋
12 架台
13 ジャッキ
14a,14b 車輪
15 クローラ
16 傾斜板
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mobile pier, and more particularly to a mobile pier used for invert construction of a tunnel.
[0002]
[Prior art]
Conventionally, it is known to use a mobile pier 1 as shown in FIG. 6 in order to pass a work vehicle carrying out the shear from the face when performing invert construction in tunnel construction. In the figure, reference numeral 2 denotes a frame for traveling the vehicle, and a wheel 3 and a jack 4 for advancing and retreating are attached to the lower part of the frame 2, and the front and rear of the frame 2 (the left side in the figure is the forward direction, That is, the inclined plate 5 is provided on the face side.
[0003]
The mobile pier 1 is installed on one side of the tunnel, and the side of the gantry 2, that is, the other side of the tunnel is inverted. Then, after the construction on the other side of the tunnel is completed, the movable jetty 1 is moved laterally to the other side of the tunnel, and one side of the tunnel is inverted. During this time, the work vehicle moves up the inclined plate 5 and travels on the upper surface of the gantry 2.
[0004]
In order to move the movable pier 1 laterally, first, the front and rear lifting cylinders 6 are contracted to lift the tip of the inclined plate 5, and the jack 4 is extended to extend the gantry 2 as shown in FIG. To rise. Then, in a state where the wheel 3 is levitated from the ground, the traverse cylinder 7 is contracted and the wheel frame 8 is traversed as shown in FIG.
[0005]
Subsequently, as shown in FIG. 7 (c), the jack 4 is contracted to lower the gantry 2, and the wheel 3 is grounded to the ground. If the traversing cylinder 7 is extended in such a state, the gantry 2 traverses and is drawn to the upper part of the wheel frame 8 as shown in FIG. By repeating the operations shown in FIGS. 7A to 7D, the movable jetty 1 moves laterally from one side of the tunnel to the other side or from the other side to one side.
[0006]
[Problems to be solved by the invention]
However, it takes about 30 to 40 minutes to move the movable jetty while moving the wheel frame and the gantry alternately by the operation of the jack and the traversing cylinder, so the working efficiency is not good. Further, since the wheel frame and the gantry are in a shifted state, the stability is poor, and there is a slight danger when moving laterally. Furthermore, the manufacturing cost increases because the rigidity of the traversing portion is increased.
[0007]
Therefore, there is a technical problem to be solved in order to make it possible to easily and quickly laterally move a mobile jetty used mainly for invert construction of a tunnel, and the present invention solves this problem. With the goal.
[0008]
[Means for Solving the Problems]
The present invention has been proposed in order to achieve the above object, and a plurality of jacks are provided at a lower portion of a vehicle traveling base, and wheels for forward and backward advancement are attached to a lower end portion of the jack. A crawler for lateral movement is provided at the lower part of the frame, and a movable jetty is provided in which inclined plates installed between the upper surface of the gantry and the ground are attached to the front and rear of the gantry.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In FIG. 1 to FIG. 3, reference numeral 11 denotes a mobile jetty used for invert construction of a tunnel, and the mobile jetty 11 is provided with a gantry 12 for traveling the vehicle. A plurality of jacks 13 are provided, and forward and backward wheels 14 a and 14 b are attached to the lower ends of the jacks 13. The jacks 13 are provided at least in the four corners of the lower part of the gantry 12, and the wheel 14 a on the face side (the left side in FIG. 1 is the face side, that is, the front direction) uses tires, and the wheel 14 b on the wellhead side uses iron wheels. Each wheel 14a, 14b has a strength capable of supporting its own weight.
[0010]
Further, a crawler 15 for lateral movement is provided at the lower part of the gantry 12. The crawler 15 is mounted sideways in the vicinity of the wheels 14a and 14b and is driven by a hydraulic motor. The figure shows the state of the movable pier 11 during invert excavation or invert concrete placement, the jack 13 is extended, the wheels 14a and 14b are grounded, the gantry 12 is raised, and the crawler 15 is grounded. It is far from.
[0011]
On the other hand, an inclined plate 16 installed between the upper surface of the gantry 12 and the ground is attached before and after the gantry 12, and the tip of the inclined plate 16 can be lifted by winding the wire rope 17. It is. Although not shown in the drawings, support columns are temporarily provided at lower portions of the gantry 12 and the inclined plate 16 as reinforcing materials when the vehicle passes.
[0012]
The movable jetty 11 is installed on one side of the tunnel, and inverts the side of the gantry 12, that is, the other side of the tunnel. During this time, the work vehicle travels up the one inclined plate 16 and travels on the upper surface of the gantry 12 and descends from the opposite inclined plate 16, thereby obstructing the passage of the work vehicle even during invert construction. There is no. Then, after the construction on the other side of the tunnel is completed, the movable jetty 11 is moved laterally to the other side of the tunnel, and one side of the tunnel is inverted.
[0013]
In order to move the movable pier 11 laterally, as shown in FIGS. 4 and 5, the jack 13 is contracted and the pedestal 12 is lowered, whereby the crawler 15 is grounded and the wheels 14a and 14b are moved from the ground. Surface. At this time, the weight of the gantry 12 is supported by the crawler 15. Before and after the grounding of the crawler 15, the wire rope 17 is wound up so that the tip of the inclined plate 16 is separated from the ground. If the crawler 15 is driven in such a state, the gantry 12 and the wheels 14a, 14b and the like move together, and the movable jetty 11 can be moved laterally to the other side of the tunnel.
[0014]
After the movable jetty 11 is moved to a predetermined position by driving the crawler 15, the jack 13 is extended again to ground the wheels 14a and 14b as shown in FIGS. 1 to 3, and the crawler 15 is grounded. The gantry 12 is raised to a position away from. Further, when the wire rope 17 is lowered and the tip of the inclined plate 16 is grounded to the ground, the movable pier 11 returns to the state at the time of invert construction, and the work vehicle can pass.
[0015]
In this way, since the movable jetty 11 can be easily moved laterally, a raw concrete can be driven using a chute from the gantry 12 at the time of invert construction, and a conventionally required concrete pump car is unnecessary. Become. In addition, since the movable jetty 11 can be moved laterally even while the live-con is being placed, it is possible to reduce the labor at the time of placing by placing directly below the gantry 12.
[0016]
It should be noted that the present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.
[0017]
【The invention's effect】
As described above, the moving pier of the present invention is equipped with a wheel for forward and backward movement at the lower end of a jack provided at the lower part of the gantry and a crawler for lateral movement at the lower part of the gantry. When the jack is contracted, the crawler touches the ground and supports the frame, and the wheel rises from the ground. By driving the crawler in such a state, the moving jetty can be moved laterally simply and quickly. Therefore, the time for lateral movement is remarkably shortened and the working efficiency is improved.
[0018]
In addition, since the platform is supported by the crawler during lateral movement, the platform can be moved extremely stably even on uneven or soft ground, and the safety during lateral movement is high. Furthermore, since a general-purpose crawler can be used, the traversing portion can be formed at a low cost, and this can contribute to the cost reduction of the moving jetty.
[Brief description of the drawings]
FIG. 1 is a partially cutaway side view of a moving jetty during invert construction according to an embodiment of the present invention.
FIG. 2 is a side view of an essential part of a rear part of a moving jetty in FIG. 1;
3 is a view taken along the line AA in which the inclined plate of FIG. 2 is omitted.
FIG. 4 is a side view of an essential part of a rear part of a moving jetty during lateral movement.
FIG. 5 is a view taken along the line B-B in which the inclined plate of FIG. 4 is omitted.
FIG. 6 is a partially cutaway side view of a conventional moving jetty.
FIG. 7 is an explanatory diagram showing a lateral movement process of a conventional moving jetty at the position of line CC in FIG. 6;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Mobile pier 12 Mount 13 Jack 14a, 14b Wheel 15 Crawler 16 Inclined board

Claims (1)

車両走行用の架台の下部に複数個のジャッキを設け、該ジャッキの下端部に前後進用の車輪を装着するとともに、前記架台の下部に横移動用のクローラを設け、更に、架台上面と地盤との間に架設される傾斜板を前記架台の前後に取り付けたことを特徴とする移動式桟橋。A plurality of jacks are provided at the lower part of the vehicle traveling base, and a wheel for forward and backward movement is attached to the lower end of the jack, and a crawler for lateral movement is provided at the lower part of the base. A movable jetty characterized in that inclined plates installed between the two are attached to the front and rear of the mount.
JP08383398A 1998-03-30 1998-03-30 Mobile jetty Expired - Fee Related JP3648048B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP08383398A JP3648048B2 (en) 1998-03-30 1998-03-30 Mobile jetty

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP08383398A JP3648048B2 (en) 1998-03-30 1998-03-30 Mobile jetty

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Publication Number Publication Date
JPH11280400A JPH11280400A (en) 1999-10-12
JP3648048B2 true JP3648048B2 (en) 2005-05-18

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CN105463981B (en) * 2015-12-29 2017-03-22 广东技术师范学院 Movable bridge type vehicle traffic system for road construction
CN105484150A (en) * 2016-01-07 2016-04-13 广西大学 Assembled movable overpass
CN106884373B (en) * 2017-03-06 2018-10-12 山东大学 A kind of multi-functional trestle and method suitable for the construction of tunnel inverted arch
CN107366222A (en) * 2017-06-16 2017-11-21 合肥工业大学 A kind of packaged type overpass of quick-assembling
CN107090767A (en) * 2017-06-19 2017-08-25 中铁隧道集团二处有限公司 A kind of Full-hydraulic crawler-type self trestle
CN108049303B (en) * 2017-12-19 2023-12-15 成都锐龙机械制造有限公司 Driving rear trestle, mounting method and adjusting method
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