【発明の詳細な説明】
本発明は港湾、河川、埋立地等における軟弱地
盤、ヘドロ地を硬化処理作業するための自走式の
硬化処理装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a self-propelled hardening device for hardening soft ground or sludge in ports, rivers, reclaimed land, etc.
従来の軟弱地盤の硬化処理装置は硬化剤を注出
する撹拌羽根を持つ硬化処理機を船体に装置し、
同船体を遠隔地に設置した滑車を取付けた支柱と
ウインチでワイヤロープで船体牽引して船体を前
進、後退方向転換させていたが、これでは多くの
付帯設備と付帯作業が必要となるばかりか、うま
く船体を移動させることが難しく時間と労力のか
かる作業となつていた。加えて作業中支柱の倒
れ、ワイヤロープの切断、損傷事故が発生すると
いう問題点があつた。又この種の自走式軟弱地盤
の硬化処理装置としては特開昭58−98517号記載
の硬化処理船における自動移動装置が知られてい
る。この装置は、本願発明者が先に発明した装置
であり、これを基本として改良したのが本願発明
である。即ちこの特開昭58−98517号記載の発明
では、硬化処理舟が地盤の軟弱状態の不均一さ、
あるいは船体・硬化処理機械の偏荷重によつて船
体が前後方向に傾けば水平に戻す手段がないた
め、傾いた状態で硬化処理機械が横行して硬化処
理される。そのため撹拌羽根による一回の停船で
硬化処理される領域は傾いた直方体となる。しか
もこの傾きは一定と限らず変化するため停船して
の硬化処理と前進の繰り返しによる硬化処理作業
において硬化処理されない未硬化処理部分がかな
り残され、硬化処理の具合がまだらな不均一な硬
化処理状態となるという問題点がある。又前後、
左右に傾いての硬化処理作業は機械・船体に無理
な荷重がかかり、機械の円滑な作動を妨げたり、
又船体の自走を難しくするという問題点がある。
本発明はかかる問題点を解消した迅速且つ容易な
移動能力を有し機動性に富んだ優れた軟弱地盤の
硬化処理装置を提供せんとするものである。 Conventional hardening treatment equipment for soft ground is equipped with a hardening treatment machine equipped with a stirring blade that pours out hardening agent on the hull.
The hull was pulled forward and backward using a wire rope and a prop with a pulley installed in a remote location and a winch to pull the hull, but this not only required a lot of incidental equipment and work. However, it was difficult to successfully move the ship, making it a time-consuming and labor-intensive task. In addition, there were problems such as props collapsing, wire ropes being cut, and accidents resulting in damage during work. As a self-propelled soft ground hardening treatment apparatus of this type, an automatic moving device for a hardening treatment ship described in Japanese Patent Application Laid-Open No. 58-98517 is known. This device was previously invented by the inventor of the present application, and the present invention is an improvement based on this device. In other words, in the invention described in JP-A No. 58-98517, the hardened boat is able to cure unevenness of the soft state of the ground.
Alternatively, if the hull tilts in the front-back direction due to the uneven load of the hull/hardening processing machine, there is no means to return it to a horizontal position, so the hardening processing machine runs sideways in the tilted state to perform the hardening process. Therefore, the area that is cured by the stirring blade in one stop becomes an inclined rectangular parallelepiped. Furthermore, since this slope is not constant and varies, a considerable amount of uncured parts remain that are not cured during the curing process by repeating the curing process while the ship is stationary and then moving forward, resulting in uneven curing process. There is a problem with the state. Also, before and after,
Hardening work performed while tilting from side to side places an unreasonable load on the machine/hull, which may impede the smooth operation of the machine.
Another problem is that it makes it difficult for the hull to move on its own.
It is an object of the present invention to provide an excellent soft ground hardening treatment apparatus that solves these problems and has a quick and easy movement ability and is highly maneuverable.
この発明は、複数の船体１，１′…を所定間隔
離して横一列に配置して互に船体同士を連結する
とともに、同複数の船体の全部又は一部に掻き羽
根２を多数突設した無限回動駆動体３を船体に巻
装し、又同船体上方に船体群を横断する連続した
レール４，４′を敷設し、同レール上に撹拌羽根
５を有する硬化処理機械６を走行自在に設け、更
にフロートを船体間の前後と後部それぞれに横方
向に沿つて所要間隔離して複数個配置し、且つフ
ロートを昇降自在に装置してなる軟弱地盤の硬化
処理装置に係るものである。尚図中８，８′は船
体１，１′…の側壁に突設して上方に伸びてレー
ル４，４′を支持する支持脚、９，９′は前後二つ
の支持脚８，８′間に懸架されるフレーム、１０，
１０′は同フレームにフロート７，７′を昇降自在
に垂架するためのクロスリンク、１１，１１′は
フロート７′，７′を昇降駆動する油圧シリンダ
ー、１２は硬化処理機械６の水平架台、１３は同
車輪、１４は撹拌羽根２の回転軸、１５は同回転
軸を支持する支柱、１６は硬化処理機械６の走行
用モータ、１７は回転軸１４の昇降用モータ、１
８は運転席、１９は船体１，１′…同士を連結す
るトラス部材、２０は無限回動駆動体３の駆動
輪、２１は従動輪、２２は駆動輪２０を回転駆動
させる油圧モータである。 This invention connects a plurality of hulls 1, 1', etc. by separating them by a predetermined distance and arranging them in a row horizontally, and in addition, a large number of paddle blades 2 are provided protruding from all or part of the hulls. An infinite rotation drive body 3 is wound around the hull, and continuous rails 4 and 4' are laid above the hull to cross the hull group, and a hardening treatment machine 6 having stirring blades 5 can run freely on the rails. The present invention relates to a hardening treatment device for soft ground, in which a plurality of floats are arranged spaced apart from each other by a required distance in the lateral direction in the front, rear, and rear portions of the ship, and the floats are movable up and down. In the figure, 8, 8' are support legs protruding from the side walls of the hulls 1, 1', extending upward to support the rails 4, 4', and 9, 9' are the two front and rear support legs 8, 8'. a frame suspended between 10,
10' is a cross link for vertically suspending the floats 7, 7' on the same frame so that they can rise and fall; 11, 11' are hydraulic cylinders that drive the floats 7', 7' up and down; 12 is a horizontal mount for the hardening machine 6. , 13 is the same wheel, 14 is the rotating shaft of the stirring blade 2, 15 is a support supporting the rotating shaft, 16 is a running motor of the hardening treatment machine 6, 17 is a motor for lifting and lowering the rotating shaft 14, 1
8 is a driver's seat, 19 is a truss member that connects the hulls 1, 1', . . . , 20 is a drive wheel of the infinite rotation drive body 3, 21 is a driven wheel, and 22 is a hydraulic motor that rotationally drives the drive wheel 20. .
この発明では分解されて運送された船体１，
１′…、硬化処理機械６等は軟弱地盤、ヘドロ地
の周辺の安定した地盤で組み立てられ、油圧モー
タ２２を作動させて無限回動駆動体３を回動さ
せ、その掻き羽根２でもつて地盤を蹴つてその反
力で船体１，１′…を進行させる。所定の軟弱地
盤に到れば静止して撹拌羽根５から硬化剤を地盤
に注入しながら回転させて撹拌し所定の深さまで
硬化処理する。その地での硬化処理が完了すれば
硬化処理機械６をレール４，４′に沿つて横行さ
せて隣接した次の軟弱地盤に移動させ、そこにお
いて同様に撹拌羽根５によつて硬化処理し、順次
レール４，４′に沿つて硬化処理機械６を移動さ
せながら帯状に硬化処理する。レール４，４′の
左右端まで走行させて硬化処理を完了すれば次に
無限回動駆動体３を回動させ硬化処理装置を１回
の硬化処理巾だけ前進させ、静止させて前記同様
に硬化処理機械６をレール４，４′に沿つて横行
させ帯状に軟弱地盤を硬化処理する。この行程を
繰り返すことによつて横巾広く且つ連続的に自走
しながら硬化処理を行えるものである。本発明の
硬化処理装置は船体間に所定間隔があることと撹
拌羽根が船体の船尾後方にあることから盛り上る
軟弱地盤に支障なく無理なく前進できるものであ
る。 In this invention, the hull 1 is disassembled and transported.
1'..., the hardening treatment machine 6, etc. is assembled on stable ground around soft ground or sludge ground, and the hydraulic motor 22 is operated to rotate the endless rotary drive body 3, and its scraper blades 2 are used to harden the ground. is kicked, and the reaction force causes the hulls 1, 1', etc. to advance. When a predetermined soft ground is reached, the hardening agent is stopped and injected into the ground from the stirring blade 5 while being rotated and stirred to harden the ground to a predetermined depth. When the hardening treatment at that site is completed, the hardening treatment machine 6 is moved sideways along the rails 4, 4' to the next adjacent soft ground, where the hardening treatment is similarly performed using the stirring blades 5. The hardening treatment machine 6 is sequentially moved along the rails 4 and 4' to perform hardening treatment in a band shape. When the curing process is completed by traveling to the left and right ends of the rails 4, 4', the endless rotation drive body 3 is rotated to move the curing device forward by one curing process width, and then it is stopped and the same process is repeated as above. The hardening treatment machine 6 is moved along the rails 4 and 4' to harden the soft ground in a strip. By repeating this process, the hardening process can be performed over a wide width and while continuously running on its own. Since there is a predetermined distance between the hulls and the stirring blades are located behind the stern of the hull, the hardening treatment equipment of the present invention can move forward smoothly on rising soft ground without any trouble.
次にＵターンする場合は第５図に示す様に中央
から一方側の船体１，１′，１″、の無限回動駆動
体３を前進方向に回動させ、又中央から反対側の
船体１，１′′′′，１′′′′′の無限回動駆動体
３は後
退方向に回動させれば本硬化処理装置は90゜旋回
でき、この状態でバツクしてその隅の軟弱地盤か
ら横方向に向けて硬化処理するものである（第５
図参照）。 Next, when making a U-turn, as shown in Fig. 5, rotate the endless rotation drive body 3 of the hull 1, 1', 1'' on one side from the center in the forward direction, and then rotate the endless rotation drive body 3 of the hull on the opposite side from the center. If the endless rotary drive body 3 of 1, 1'''', 1''''' is rotated in the backward direction, the hardening treatment apparatus can be rotated 90 degrees, and in this state it will back up and remove the soft corner. Hardening treatment is performed from the ground in the horizontal direction (No. 5
(see figure).
以上の様に本硬化処理装置では前進、後退、左
右旋回できるため自在に軟弱地盤上を移動でき、
しかも一回の静止で横方向に巾広く硬化処理を行
えるので極めて効果的に軟弱地盤を硬化処理でき
る。 As mentioned above, this hardening treatment equipment can move forward, backward, and turn left and right, so it can move freely over soft ground.
Moreover, since the hardening process can be performed over a wide area in the lateral direction in one stationary operation, it is possible to harden soft ground extremely effectively.
次に船体１，１′…が硬化処理機械６の重量又
は作業中の撹拌羽根５からの反動等で後方に沈み
込んでもフロート７を軟弱地盤に向けて降下し、
フロート７に作用する軟弱地盤からの反力及び浮
力によつて船体１，１′…を水平に保持させるこ
とができ、又旋回等の時に船体の前方が沈み込め
ば前方のフロート７′によつて水平に船体を戻す
ことができる。よつて硬化処理機械６が円滑に作
動でき正確で且つ迅速な硬化処理が行える。 Next, even if the hulls 1, 1'... sink backward due to the weight of the hardening treatment machine 6 or the reaction from the stirring blades 5 during operation, the floats 7 are lowered toward the soft ground.
The hulls 1, 1', etc. can be held horizontally by the reaction force and buoyant force from the soft ground acting on the float 7, and if the front of the hull sinks during a turn, etc., the front float 7' will hold the hull horizontally. The ship can be returned to horizontal position. Therefore, the hardening processing machine 6 can operate smoothly, and accurate and rapid hardening processing can be performed.
以上の様に本発明によれば、軟弱地盤を無理な
く自在に移動でき、しかも複数の船体の巾だけ広
く一度の静止で硬化処理が行えることによつて迅
速且つさしたる困難もなく機動性をもつて硬化処
理を行え、加えて船体の後方又は前方へ沈み込ん
でもフロートの降下によつて船体１，１′…及び
硬化処理機械６を水平に維持でき正確且つ円滑な
硬化処理を可能ならしめるという優れた効果があ
る。又船体が前後ばかりでなく左右に傾いてレー
ル４，４′、船体連結部材及び硬化処理機械に偏
荷重がかかり、レールが歪んだりして硬化処理機
械の作動・移動が円滑にいかなかつたり、硬化処
理装置全体の移動を難しくすることが、前後左右
に配置した昇降自在なフロートで船体・レールを
水平に維持出来ることによつて解消することがで
きたという効果がある。 As described above, according to the present invention, it is possible to move freely on soft ground without any difficulty, and the hardening process can be performed quickly and without much difficulty by widening the width of multiple hulls and performing hardening treatment at one time. In addition, even if the ship sinks to the rear or the front of the ship, the hulls 1, 1', etc. and the hardening machine 6 can be maintained horizontally by lowering the float, making it possible to perform accurate and smooth hardening. It has excellent effects. In addition, the hull tilts not only forward and backward, but also from side to side, and uneven loads are applied to the rails 4, 4', the hull connecting members, and the hardening processing machine, causing the rails to become distorted and making it difficult for the hardening processing machine to operate and move smoothly. The difficulty of moving the entire hardening treatment equipment has been solved by keeping the hull and rails horizontal with floats placed on the front, rear, left, and right sides that can be raised and lowered.
【図面の簡単な説明】[Brief explanation of drawings]
第１図は本発明軟弱地盤の硬化処理装置の実施
例を示す平面図、第２図は同実施例の一つの船体
を示す平面図、第３図は同側面図、第４図は船体
の沈み込みを回復させる行程を示す説明図、第５
図は同実施例装置を使用しての軟弱地盤の硬化処
理作業を示す説明図、第６図は船体の連結構造を
示す説明図、第７図は前方のフロートの働きを示
す説明図である。
１，１′：船体、２：掻き羽根、３：無限回動
駆動体、４，４′：レール、５：撹拌羽根、６：
硬化処理機械、７，７′：フロート。
Fig. 1 is a plan view showing an embodiment of the soft ground hardening treatment apparatus of the present invention, Fig. 2 is a plan view showing one of the hulls of the same embodiment, Fig. 3 is a side view of the same, and Fig. 4 is a plan view of the hull of the same embodiment. Explanatory diagram showing the process of recovering from subduction, No. 5
The figure is an explanatory diagram showing the hardening process of soft ground using the same embodiment device, Fig. 6 is an explanatory diagram showing the connection structure of the hull, and Fig. 7 is an explanatory diagram showing the function of the front float. . 1, 1': Hull, 2: Scraping blade, 3: Endless rotary drive body, 4, 4': Rail, 5: Stirring blade, 6:
Hardening treatment machine, 7, 7': float.
【特許請求の範囲】[Claims]
１ 上方向に椀状に湾曲した凹部を設けた底板上
に、１本または複数本の棒鋼を固着して補強体を
形成し、且該補強体を施工地盤に前記底板が嵌挿
できる径を有して穿設された施工孔内に、底板を
下方にして降下せしめて装置すると共に、施工孔
内に吸水膨張性コンクリートを充填し、然る後下
方向に椀状に湾曲した凹部を設けた蓋板を棒鋼の
上部に透孔を介して貫通せしめて吸水膨張性コン
クリート上に密着し、更に棒鋼と蓋板とを溶着し
て一体に固着することを特徴とする吸水膨張性コ
ンクリートを用いた地耐力増強方法。
1. A reinforcing body is formed by fixing one or more steel bars to a bottom plate provided with an upwardly curved concave portion in the shape of a bowl, and the diameter of the reinforcing body is such that the bottom plate can be inserted into the construction ground. The device is lowered into a construction hole that has been drilled with the bottom plate facing downward, and the construction hole is filled with water-absorbing expandable concrete, and then a concave portion curved downward into a bowl shape is provided. The water-absorbing concrete is characterized in that the lid plate is passed through the upper part of the steel bar through a hole and is tightly attached to the water-absorbing concrete, and the steel bar and the lid plate are welded and fixed together. A method for increasing the bearing capacity of soil.