JPH1162463A - Shaft excavating construction method and device - Google Patents
Shaft excavating construction method and deviceInfo
- Publication number
- JPH1162463A JPH1162463A JP22797197A JP22797197A JPH1162463A JP H1162463 A JPH1162463 A JP H1162463A JP 22797197 A JP22797197 A JP 22797197A JP 22797197 A JP22797197 A JP 22797197A JP H1162463 A JPH1162463 A JP H1162463A
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- cutter
- caisson
- wall
- excavation
- 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.)
- Pending
Links
Landscapes
- Earth Drilling (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、直径の異なる立坑
掘削に容易に転用が可能とした立坑掘削方法及び装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shaft excavation method and apparatus which can be easily converted to shaft excavations having different diameters.
【０００２】[0002]
【従来の技術】立坑を掘削するに際し深礎工法、圧入ケ
ーソン工法、ＰＣウエル、ニューマチックケーソン工法
が知られている。一般に掘削すべき立坑の直径に応じた
カッタを用意することとなるが、比較的大径の立坑を掘
削には、通常、複数のカッタを備えた多軸式掘削機が用
いられる。2. Description of the Related Art When excavating a shaft, a deep foundation method, a press-fit caisson method, a PC well, and a pneumatic caisson method are known. Generally, a cutter corresponding to the diameter of a shaft to be excavated is prepared, but a multi-shaft excavator having a plurality of cutters is usually used for excavating a shaft having a relatively large diameter.
【０００３】しかし、従来の多軸式掘削機では、直径の
異なる立坑掘削には転用できず、また大口径立坑の掘削
を行うには、装置が大型化し高価なものとなる。また、
特にその立坑内壁下部の掘削が困難であった。However, the conventional multi-shaft excavator cannot be used for excavating shafts having different diameters, and excavating a large-diameter shaft requires a large-sized and expensive apparatus. Also,
In particular, it was difficult to excavate the lower part of the inner wall of the shaft.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、大きさ、形
状の異なる立坑掘削においても、比較的簡単の機構の交
換で対処できる立坑掘削方法及び装置を提供することを
目的としている。SUMMARY OF THE INVENTION An object of the present invention is to provide a method and an apparatus for excavating a shaft in which shafts of different sizes and shapes can be dealt with by exchanging a relatively simple mechanism.
【０００５】[0005]
【課題を解決するための手段】本発明によれば、立坑内
壁で反力を取り、該立坑内壁の中及び下部の掘削を行う
掘削工法であり、立坑掘削断面より小径のカッタを準備
し、該カッタを偏心回転させることにより、内壁下方の
所要断面の立坑掘削を行う。According to the present invention, there is provided an excavation method in which a reaction force is taken at the inner wall of a shaft to excavate the inner and lower portions of the inner wall of the shaft, and a cutter having a smaller diameter than the cross section of the shaft is prepared. By eccentrically rotating the cutter, a shaft excavation of a required cross section below the inner wall is performed.
【０００６】また本発明によれば、立坑内壁がケーソン
で構成されコピーカッタにより、ケーソンの刃口下の掘
削を行う。Further, according to the present invention, the inner wall of the shaft is formed of a caisson, and a copy cutter excavates below the caisson blade.
【０００７】そして本発明によれば、上段グリッパと下
段グリッパを交互に内壁に圧接して、昇降ジャッキにと
り尺取虫形式でカッタを移動させる。According to the present invention, the upper gripper and the lower gripper are alternately pressed against the inner wall, and the cutter is moved by the elevating jack in the form of a scale insect.
【０００８】さらに本発明によれば、立坑内壁で反力を
取り、該立坑内壁の下の立坑掘削を行う掘削装置であ
り、立坑掘削断面より小径のカッタを備え、該カッタを
偏心移転させるクランク軸を有している。Further, according to the present invention, there is provided an excavating apparatus for taking a reaction force on an inner wall of a shaft and excavating the shaft below the inner wall of the shaft, comprising a cutter having a diameter smaller than a section of the shaft and exchanging the cutter eccentrically. It has an axis.
【０００９】また本発明によれば、交互に内壁に固定さ
れる上段グリッパと下段グリッパ及び昇降ジャッキから
成り、カッタを尺取虫形式で移動させる昇降装置を備て
いる。Further, according to the present invention, there is provided an elevating device which comprises an upper gripper, a lower gripper and an elevating jack which are alternately fixed to the inner wall, and moves the cutter in the form of a scale.
【００１０】直径の異なる立坑掘削においても、偏心機
構の交換程度で転用でき、また偏心による掘削機構のた
め、必要トルクが軽減でき、かつ必要トルクは、駆動モ
ータの数で対処でき、機械設備を小型化できる。[0010] Even when excavating shafts having different diameters, the eccentric mechanism can be diverted by exchanging the eccentric mechanism, and the required torque can be reduced by the number of drive motors because of the eccentric excavating mechanism. Can be downsized.
【００１１】また、油圧モータなど動力源及び掘削装置
がケーソン先端部（最深点）にあり、深さに対する対応
が容易である。In addition, a power source such as a hydraulic motor and a drilling device are located at the tip of the caisson (the deepest point), and it is easy to deal with the depth.
【００１２】[0012]
【発明の実施の形態】図１及び図２は、本発明の立坑掘
削工法が実施される掘削機の第１実施例を示し、この実
施例のものは、１軸タイプのものであり、内壁はケーソ
ンにより構成されている。1 and 2 show a first embodiment of an excavator in which a shaft excavation method according to the present invention is carried out. This embodiment is of a uniaxial type and has an inner wall. Is composed of caissons.
【００１３】図において、１はケーソン、２はケーソン
１を圧入する加圧装置、３はアンカーであり、ケーソン
１の外方Ａは掘削する地山部分、内方Ｂは、全体を１０
で示す後述の掘削機により掘削した立坑部分である。In the figure, 1 is a caisson, 2 is a pressurizing device for press-fitting the caisson 1, 3 is an anchor, the outside A of the caisson 1 is a ground portion to be excavated, and the inside B is 10
Is a shaft part excavated by an excavator described below.
【００１４】掘削機１０のカッタ１１は、スポークタイ
プのカッターフレーム１２と該フレーム１２に取り付け
られたカッタービット１３から成り、立坑掘削断面より
小径のものであ。The cutter 11 of the excavator 10 comprises a spoke type cutter frame 12 and a cutter bit 13 attached to the frame 12, and has a diameter smaller than the cross section of the shaft.
【００１５】前記カッタ１１は、クランク軸（偏心軸）
１４に取り付けられており、モータ１５により小歯車１
６、大歯車１７介して回転される。Ｏ−１は掘削中心、
Ｏー２はカッタ中心である。The cutter 11 has a crankshaft (eccentric shaft).
14 and the small gear 1
6. Rotated via the large gear 17. O-1 is the excavation center,
O-2 is the center of the cutter.
【００１６】全体を１８で示す昇降装置を備えており、
該昇降装置１８は、上段グリッパ１９、下段グリッパ２
０及び昇降ジャッキ２１とから成り、上段グリッパ１９
と下段グリッパ２０を交互にケーソン１の内壁に圧接し
て、昇降ジャッキ２１により尺取虫形式でカッタ１１を
移動させる。なお、グリッパは内壁に圧接せずに任意適
宜定着具で内壁に機械的に固定してもよい。A lifting device, generally designated 18;
The lifting device 18 includes an upper gripper 19 and a lower gripper 2.
0 and the lifting jack 21, and the upper gripper 19.
And the lower gripper 20 are alternately pressed against the inner wall of the caisson 1, and the cutter 11 is moved by the lifting jack 21 in the form of a scale insect. The gripper may be mechanically fixed to the inner wall with a fixing device as appropriate without pressing against the inner wall.
【００１７】掘削は、グリッパ１９、２０をケーソン１
の内壁に圧接し、ケーソン内壁で反力を取って行う。ケ
ーソン１内は水で満たされており、水中で掘削が行われ
る。加圧装置２を作動して、カッタ１１による掘削と同
時にケーソン１の沈設を行うが、昇降ジャッキ２１によ
り先掘もできる。For excavation, grippers 19 and 20 are caisson 1
Press against the inner wall of the caisson and take the reaction force on the inner wall of the caisson. The caisson 1 is filled with water, and excavation is performed underwater. The caisson 1 is settled simultaneously with the excavation by the cutter 11 by operating the pressurizing device 2.
【００１８】カッタ１１で掘削した掘削土は、排土ポン
プ２２により排泥ホース２３を経て泥水により搬出す
る。なお、ベノト・クラムシェル等の機械式揚土も可能
である。The excavated soil excavated by the cutter 11 is carried out by muddy water through a mud discharging hose 23 by a discharging pump 22. It is also possible to mechanically excavate such as Venoto clamshell.
【００１９】カッタ１１は、図９に示すように、コピー
カッタ２４を備えており、ケーソン１の刃口下の掘削を
行う。これにより、ケーソン１の圧入抵抗を小さくする
ことができる。また、このコピーカッタ２４を備えるこ
とで、立坑掘削時の変形掘削・偏心時の傾き修正に容易
に対応が可能となる。As shown in FIG. 9, the cutter 11 is provided with a copy cutter 24 for excavating below the cutting edge of the caisson 1. Thereby, the press-fit resistance of the caisson 1 can be reduced. Further, by providing the copy cutter 24, it is possible to easily cope with deformation excavation at the time of shaft excavation and inclination correction at the time of eccentricity.
【００２０】図３及び図４は、本発明の立坑掘削工法が
実施される掘削機の第２実施例を示し、この実施例のも
のは、多軸タイプのものである。FIGS. 3 and 4 show a second embodiment of an excavator in which the shaft excavation method according to the present invention is carried out. This embodiment is a multi-shaft type.
【００２１】カッタ１１は、４本のクランク軸（偏心
軸）１４に取り付けられており、各クランク軸１４は、
各々モータ１５により歯車１６、１７を介して駆動され
る。この実施例のものによれば、より大きな駆動力が得
られる。The cutter 11 is attached to four crankshafts (eccentric shafts) 14, and each of the crankshafts 14
Each is driven by a motor 15 via gears 16 and 17. According to this embodiment, a larger driving force can be obtained.
【００２２】図５及び図６には、カッタ切削断面と掘削
断面の関係を示し、図５において、Ｏ−１は掘削中心、
Ｏ−２はカッタ中心、Ｋ−１はカッタの回転方向、Ｋ−
２は切削面の回転方向、Ｃ−１は掘削断面、Ｃ−２はカ
ッタ切削断面を各々示し、また図６において、Ｌは可変
長、ｌは伸縮長を示す。FIGS. 5 and 6 show the relationship between the cutter cutting section and the excavation section. In FIG.
O-2 is the cutter center, K-1 is the rotation direction of the cutter, K-
2 indicates the rotation direction of the cutting surface, C-1 indicates the excavated cross section, and C-2 indicates the cutter cut cross section. In FIG. 6, L indicates a variable length, and 1 indicates a telescopic length.
【００２３】カッタは、数パスにより掘削断面をカバー
する。１パスの場合も２パスの場合も３パスの場合も、
それ以上のパスの場合もある。The cutter covers the excavated section by several passes. For one pass, two passes, and three passes,
There may be more passes.
【００２４】図７は１パスの場合であり、Ｍ−１はカッ
タ中心Ｏ−２の軌跡を示す。この場合は、ｒ＞１／２Ｒ
である。FIG. 7 shows the case of one pass, and M-1 indicates the locus of the cutter center O-2. In this case, r> 1 / 2R
It is.
【００２５】図８は２パスの場合であり、Ｍ−２はカッ
タ中心Ｏ−２の軌跡を示す。この場合は、１／２Ｒ＞ｒ
＞１／４Ｒである。但し、Ｒは掘削断面の半径、ｒはカ
ッタ切削断面の半径である。FIG. 8 shows the case of two passes, and M-2 indicates the locus of the cutter center O-2. In this case, 1 / 2R> r
> １ ／ R. Here, R is the radius of the excavated cross section, and r is the radius of the cutter cut cross section.
【００２６】図９はコピーカッタ２４を設けて余掘り部
Ｙを掘削する態様を示す。FIG. 9 shows an embodiment in which the copy cutter 24 is provided to excavate the extra dug portion Y.
【００２７】図１０に集土用ブレード２５を設けて、揚
土ポンプ２２に集土する態様を示す。FIG. 10 shows an embodiment in which a soil collection blade 25 is provided and the soil is collected by the earth-lifting pump 22.
【００２８】図１１は、油圧ジャッキ２５及び伸縮アー
ム２６を使用し、カッタ１１の偏心量を変更できるよう
にしたものである。FIG. 11 shows a configuration in which the eccentric amount of the cutter 11 can be changed by using a hydraulic jack 25 and a telescopic arm 26.
【００２９】[0029]
【発明の効果】本発明は、次の優れた効果を奏するもの
である。 （１） 大きさ、形状の異なる立坑においても、偏心機
構の交換程度で転用できる。 （２） 偏心による掘削機構のため、必要トルクが軽減
可能であり、かつ必要トルクは、駆動モータの数で対処
でき、機械設備を小型化でき、安価となる。 （３） 上記の理由により、大口径の立坑に適用が容易
である。また、動力源（油圧モータなど）及び掘削装置
がケーソン先端部（最深点）にあり、深さに対する対応
が容易である。 （４） 動力源（油圧モータなど）がケーソン先端部に
あり、立坑の地表面付近のスペースが広く取れる。The present invention has the following excellent effects. (1) Even shafts having different sizes and shapes can be diverted by changing the eccentric mechanism. (2) Due to the eccentric excavating mechanism, the required torque can be reduced, and the required torque can be dealt with by the number of drive motors. (3) For the above reasons, it is easy to apply to a large diameter shaft. Further, the power source (such as a hydraulic motor) and the excavator are located at the tip of the caisson (the deepest point), so that it is easy to deal with the depth. (4) A power source (hydraulic motor, etc.) is located at the tip of the caisson, allowing a large space near the ground surface of the shaft.
【図１】１軸タイプの掘削機のケーソンと共に示す正面
図。FIG. 1 is a front view showing a single-axis type excavator together with a caisson.
【図２】図１の平面図。FIG. 2 is a plan view of FIG. 1;
【図３】多軸タイプの掘削機のケーソンと共に示す正面
図。FIG. 3 is a front view showing a multi-axis type excavator together with a caisson.
【図４】図３の平面図。FIG. 4 is a plan view of FIG. 3;
【図５】カッタ切削断面と掘削断面の関係を示す平面
図。FIG. 5 is a plan view showing a relationship between a cutter cutting section and an excavation section.
【図６】図５の説明図。FIG. 6 is an explanatory diagram of FIG. 5;
【図７】カッタの１パスの場合の平面図。FIG. 7 is a plan view of the cutter in one pass.
【図８】カッタの２パスの場合の平面図。FIG. 8 is a plan view of the cutter in the case of two passes.
【図９】コピーカッタによる余掘りを示す平面図。FIG. 9 is a plan view showing extra dug by a copy cutter.
【図１０】集土を示す平面図。FIG. 10 is a plan view showing soil collection.
【図１１】カッタの伸縮態様の１例を示す平面図。FIG. 11 is a plan view showing an example of an expansion and contraction mode of the cutter.
１・・・ケーソン ２・・・加圧装置 ３・・・アンカー １０・・・掘削機 １１・・・カッタ １２・・・フレーム １３・・・ビット １４・・・クランク軸 １５・・・モータ １６・・・小歯車 １７・・・大歯車 １８・・・昇降装置、 １９・・・上段グリッパ ２０・・・下グリッパ ２１・・・昇降ジャッキ ２２・・・排土ポンプ ２３・・・排泥ホース ２４・・・コピーカッタ ２５・・・集土用ブレード DESCRIPTION OF SYMBOLS 1 ... Caisson 2 ... Pressurizing device 3 ... Anchor 10 ... Excavator 11 ... Cutter 12 ... Frame 13 ... Bit 14 ... Crank shaft 15 ... Motor 16 ... Small gear 17 ... Large gear 18 ... Elevating device 19 ... Upper gripper 20 ... Lower gripper 21 ... Elevating jack 22 ... Ejection pump 23 ... Sludge discharging hose 24 ... copy cutter 25 ... blade for soil collection
───────────────────────────────────────────────────── フロントページの続き (72)発明者 溝 田 寿 大阪府大阪市西区阿波座一丁目３番15号 鹿島建設株式会社関西支店内 (72)発明者 石 村 勝 宏 大阪府大阪市西区阿波座一丁目３番15号 鹿島建設株式会社関西支店内 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor, Hisashi Mizota 1-3-15, Awaza, Nishi-ku, Osaka-shi, Osaka Inside the Kansai Branch of Kashima Construction Co., Ltd. Kashima Construction Co., Ltd. Kansai Branch
Claims (10)
及び下部の掘削を行う掘削工法であり、立坑掘削断面よ
り小径のカッタを準備し、該カッタを偏心回転させるこ
とにより、内壁下方の所要断面の立坑掘削を行うことを
特徴とする立坑掘削工法。1. An excavation method in which a reaction force is taken by an inner wall of a shaft to excavate the inside and lower portions of the inner wall of the shaft, a cutter having a smaller diameter than a cross section of the shaft is prepared, and the cutter is eccentrically rotated. A shaft excavation method characterized by excavating a shaft in a required lower section.
ッタにより、ケーソンの刃口下の掘削を行うことを特徴
とする請求項１に記載の立坑掘削工法。2. The shaft excavation method according to claim 1, wherein the inner wall of the shaft is formed of a caisson, and the copy cutter is used to excavate below the caisson blade.
壁に圧接して、昇降ジャッキにとり尺取虫形式でカッタ
を移動させることを特徴とする請求項１に記載の立坑掘
削工法。3. The vertical shaft excavation method according to claim 1, wherein the upper gripper and the lower gripper are alternately pressed against the inner wall, and the cutter is moved to the lifting jack by a shading insect type.
ーするものであることを特徴とする請求項１に記載の立
坑掘削工法。4. The shaft excavation method according to claim 1, wherein the cutter covers an excavated cross section by one pass.
ーするものであることを特徴とする請求項１に記載の立
坑掘削工法。5. The shaft excavation method according to claim 1, wherein the cutter covers an excavated cross section by several passes.
の立坑掘削を行う掘削装置であり、立坑掘削断面より小
径のカッタを備え、該カッタを偏心移転させるクランク
軸を有することを特徴とする立坑掘削装置。6. An excavator for taking a reaction force on an inner wall of a shaft and excavating the shaft below the inner wall of the shaft, comprising a cutter having a smaller diameter than a cross section of the shaft, and having a crankshaft for eccentrically transferring the cutter. Shaft excavation equipment.
徴とする請求項６に記載の立坑掘削装置。7. The shaft excavator according to claim 6, wherein the crankshaft is a single shaft type.
徴とする請求項６に記載の立坑掘削装置。8. The shaft excavator according to claim 6, wherein the crankshaft is a multi-shaft type.
する請求項６に記載の立坑掘削装置。9. The shaft excavator according to claim 6, further comprising a copy cutter.
と下段グリッパ及び昇降ジャッキから成り、カッタを尺
取虫形式で移動させる昇降装置を備ていることを特徴と
する請求項６に記載の立坑掘削装置。10. The shaft excavating apparatus according to claim 6, further comprising an elevating device which comprises an upper gripper, a lower gripper, and a lifting jack fixed alternately to the inner wall, and moves the cutter in the form of a scale. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22797197A JPH1162463A (en) | 1997-08-25 | 1997-08-25 | Shaft excavating construction method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22797197A JPH1162463A (en) | 1997-08-25 | 1997-08-25 | Shaft excavating construction method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1162463A true JPH1162463A (en) | 1999-03-05 |
Family
ID=16869135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22797197A Pending JPH1162463A (en) | 1997-08-25 | 1997-08-25 | Shaft excavating construction method and device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1162463A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002339679A (en) * | 2001-05-21 | 2002-11-27 | Kajima Corp | Excavator and excavating method |
| CN102061717A (en) * | 2010-12-26 | 2011-05-18 | 张永忠 | Coaxial counter-rotating inclined type grooving machine |
| CN102691324A (en) * | 2012-05-30 | 2012-09-26 | 张永忠 | Groove sawing machine with movable cutting boards |
| WO2019128922A1 (en) * | 2017-12-25 | 2019-07-04 | 中铁工程装备集团有限公司 | Cutter disk for vertical shaft sinking |
| CN114908788A (en) * | 2022-06-22 | 2022-08-16 | 同济大学 | Auxiliary sinking device for sunk well blade |
| CN114908789A (en) * | 2022-06-22 | 2022-08-16 | 同济大学 | Self-sinking and self-supporting device for edge foot of open caisson |
-
1997
- 1997-08-25 JP JP22797197A patent/JPH1162463A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002339679A (en) * | 2001-05-21 | 2002-11-27 | Kajima Corp | Excavator and excavating method |
| JP4485098B2 (en) * | 2001-05-21 | 2010-06-16 | 鹿島建設株式会社 | Drilling rig |
| CN102061717A (en) * | 2010-12-26 | 2011-05-18 | 张永忠 | Coaxial counter-rotating inclined type grooving machine |
| CN102691324A (en) * | 2012-05-30 | 2012-09-26 | 张永忠 | Groove sawing machine with movable cutting boards |
| WO2019128922A1 (en) * | 2017-12-25 | 2019-07-04 | 中铁工程装备集团有限公司 | Cutter disk for vertical shaft sinking |
| CN114908788A (en) * | 2022-06-22 | 2022-08-16 | 同济大学 | Auxiliary sinking device for sunk well blade |
| CN114908789A (en) * | 2022-06-22 | 2022-08-16 | 同济大学 | Self-sinking and self-supporting device for edge foot of open caisson |
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