JPH0333834Y2 - - Google Patents
Info
- Publication number
- JPH0333834Y2 JPH0333834Y2 JP1985023730U JP2373085U JPH0333834Y2 JP H0333834 Y2 JPH0333834 Y2 JP H0333834Y2 JP 1985023730 U JP1985023730 U JP 1985023730U JP 2373085 U JP2373085 U JP 2373085U JP H0333834 Y2 JPH0333834 Y2 JP H0333834Y2
- Authority
- JP
- Japan
- Prior art keywords
- opening
- screws
- trough
- earth
- sand
- 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
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Screw Conveyors (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、下水道あるいは共同溝等を築造する
場合にシールド工法、推進工法を用いて掘進する
にあたり、シールド掘進機における切羽掘削土を
後方へ確実に搬出させるようにした土砂排出装置
に係る。[Detailed description of the invention] [Industrial application field] This invention is designed to move the excavated soil at the face of the shield excavator to the rear when excavating using the shield method or propulsion method when constructing sewers or public ditches. This relates to an earth and sand discharge device that ensures reliable removal.
この種のシールド掘進機のバルクヘツドを貫設
するようにして、切羽掘削土を排出する装置とし
ては、円筒形状のケーシング内にスクリユーステ
ム（あるいは通称リボンスクリユー、ダブルスク
リユー）を装設したものが多く用いられている。
また、内側空間を複数のシエル構造にした回転ド
ラム式のものがある。しかし、いずれも下記の欠
陥を有すとともに排出効率が悪く、玉石や礫の混
入土砂には不向である等の問題点がある。
A device that penetrates the bulkhead of this type of shield excavator and discharges excavated soil from the face is equipped with a screw stem (or commonly known as a ribbon screw or double screw) installed inside a cylindrical casing. Many things are used.
There is also a rotary drum type in which the inner space has a plurality of shell structures. However, all of them have the following drawbacks, have poor discharge efficiency, and are unsuitable for soil mixed with cobbles and gravel.
上記従来の技術によれば、切羽における水圧に
対して排出時のマテリアルシール効果はかなり期
待できるもののカツター４で破砕された大きな礫
や玉石はスクリユーケーシング内に取り込むこと
が困難であつたり、スクリユーのピツチによりは
さまれ状態を招来しケーシング内で詰ることが多
く、したがつてスクリユー部分やケーシングに損
傷をきたし、さらには駆動停止や駆動原の故障を
招いている。また、このようなシールド掘進機内
での取り替えや修理作業も非常に困難にして、掘
進作業停止による費用も大きいものがある。
According to the above-mentioned conventional technology, although a considerable material sealing effect can be expected at the time of discharge against water pressure at the face, large gravels and boulders crushed by the cutter 4 are difficult to take into the screw casing, and the screw The pitch of the screws often leads to a jamming condition inside the casing, causing damage to the screw part and the casing, and even causing the drive to stop or the drive source to malfunction. In addition, replacement and repair work within such a shield excavator is extremely difficult, and the cost of stopping excavation work is large.
一方、この種の工事においては、掘進地盤は著
しく変化することが多いので、粘土、シルト、
砂、礫混り、玉石混り等のあらゆる土質に対応で
きる排出装置とすることが必要である。 On the other hand, in this type of construction, the excavated ground often changes significantly, so clay, silt, etc.
It is necessary to have a discharge device that can handle all types of soil, including sand, gravel, and cobbles.
本考案は、２連のスクリユーステムを用いて、
土砂が閉塞的に充満しつつ移動するべく枠体をト
ラフ形状に構成したことに主旨があり、その１実
施例を第１図、第２図および第３図に示し具体的
に説明すると、まずバルクヘツド２の下部すなわ
ちハウジング部２０の下方にはホツパー２１を有
する開口部１１を設け、この開口部１１を貫通す
るようにスクリユー７，７を２連に設け後方に至
り上り勾配に配設して成り、さらにスクリユー
７，７の下方に位置する土砂送り部（底部６）
は、このスクリユー７，７が回動しやすく且つな
じむように半弧状の溝を構成してあり、この溝の
両サイドから垂直に立ち上る側壁５，５を有し上
方を開口１９するトラフ構造としてある。
This invention uses two screw stems,
The main idea is that the frame body is configured in a trough shape so that the earth and sand move while being filled in an obstructive manner.One example of this is shown in Figs. 1, 2, and 3, and will be explained in detail. An opening 11 having a hopper 21 is provided in the lower part of the bulkhead 2, that is, below the housing part 20, and two screws 7, 7 are provided in series so as to pass through this opening 11, and are arranged in an upward slope toward the rear. and the earth and sand sending part (bottom part 6 ) located below the screws 7, 7.
The screws 7, 7 have a semi-arc shaped groove so that they can easily rotate and fit in, and have a trough structure with side walls 5, 5 rising vertically from both sides of the groove and an opening 19 at the top. be.
なお、上記スクリユー７，７は後方に至り上り
勾配に設けるとして例示したが、このスクリユー
７，７およびトラフ構造を水平に構成することも
できる。このとき変化する土質に対応させるため
に側壁５，５の高さを調節できるように分割し、
２段、３段と脱着容易にすることもできる。 Although the above-mentioned screws 7, 7 are illustrated as being provided at an upward slope toward the rear, the screws 7, 7 and the trough structure can also be configured horizontally. At this time, in order to correspond to the changing soil quality, the side walls 5, 5 are divided so that the height can be adjusted.
It can also be easily attached and detached in two or three stages.
また、上記開口部１１には、シールド掘進機１
の後方へ開くように、または上下方向に開閉する
ように開閉扉８を設けるとともにトラフ構造の後
端における土砂排出口１２にも同じく開閉扉１４
を設けて成る。これら開閉扉８，１４は自重によ
つてまたは重垂を設けて土砂の流出制御をする。
あるいはジヤツキ９，１５を取りつけて強制的に
排出調節することも自在である。 In addition, the shield tunneling machine 1 is provided in the opening 11.
An opening/closing door 8 is provided to open rearward or vertically, and an opening/closing door 14 is also provided at the earth and sand discharge port 12 at the rear end of the trough structure.
It consists of These opening/closing doors 8, 14 control the outflow of earth and sand by their own weight or by providing a heavy drop.
Alternatively, it is also possible to forcibly adjust the discharge by attaching jacks 9 and 15.
以上にして、本考案は成る。 With the above, the present invention is completed.
〔考案の作用効果〕
スクリユー７，７を２連構成とし、底部６を
スクリユー７，７に合せた溝型とし、全体をト
ラフ構造としたので、従来技術のようにスクリ
ユーケーシング内に取り込めなかつたり、詰つ
たりして故障の原因を多く発生していたが、本
考案によるとこれが皆無となり、玉石や大きい
礫等でも容易に搬送および排出させることがで
きる。[Effects of the invention] The screws 7, 7 are configured in two rows, the bottom part 6 is made into a groove shape that matches the screws 7, 7, and the entire structure is made into a trough structure, so that it cannot be taken into the screw casing as in the conventional technology. However, according to the present invention, this has been completely eliminated, and even boulders and large gravel can be easily transported and discharged.
トラフの頂部１８，１８まで土砂の充満量１
０を維持できるために切羽側の土砂１３の圧力
に対抗し得るので、大きい開口部１１とするこ
とができ、したがつて玉石や大きい礫等の取り
込みが楽になる。 Amount of earth and sand filled to the top of the trough 18, 18
Since the pressure of the earth and sand 13 on the face side can be maintained since the opening 11 can be maintained at 0, the opening 11 can be made large, making it easier to take in boulders, large gravel, etc.
構造が単純であるから故障は減少し、製作簡
単にして安価にできる。 Since the structure is simple, failures are reduced, and manufacturing is simple and inexpensive.
トラフに勾配をとることにより、またトラフ
の側壁の高さを加減することにより、トラフ内
の土砂の充満量１０を調節できるので、切羽土
圧並に水圧に対抗させることができ、よつて安
全に掘削且つ排出させることが容易になつた。 By sloping the trough and adjusting the height of the side walls of the trough, the filling amount of earth and sand in the trough can be adjusted, making it possible to counter water pressure as well as face earth pressure, thereby increasing safety. It has become easier to excavate and drain.
本考案によれば、以上のように有用な効果を発
揮できる。 According to the present invention, useful effects can be exhibited as described above.
第１図は、本考案の１実施例を示す縦断面説明
図。第２図は、第１図のＡ−Ａ矢視断面説明図。
第３図は、第１図のＢ−Ｂ矢視断面説明図。
なお、図中、１……シールド掘進機、２……バ
ルクヘツド、４……カツター、５……側壁、６…
…底部、７……スクリユー、８，１４……開閉
扉、９，１５……ジヤツキ、１０……土砂の充
満、１１……開口部、１２……排出口、１３……
土砂、１８……頂部、１９……開口、２０……ハ
ウジング部、２１……ホツパーを表わす。
FIG. 1 is an explanatory longitudinal cross-sectional view showing one embodiment of the present invention. FIG. 2 is an explanatory cross-sectional view taken along the line A-A in FIG. 1.
FIG. 3 is an explanatory cross-sectional view taken along the line B-B in FIG. 1. In addition, in the figure, 1...shield tunneling machine, 2...bulk head, 4...cutter, 5...side wall, 6 ...
...bottom, 7...screw, 8, 14...opening/closing door, 9, 15...jar, 10...filling with earth and sand, 11...opening, 12 ...discharge port, 13...
earth and sand, 18... top, 19 ... opening, 20... housing section, 21... hopper.
Claims (1)
羽掘削土を後方へ排出する装置において、バルク
ヘツド２の下部の開口部１１を貫通するようにス
クリユー７，７を２連に後方に至り上り勾配また
は水平に配設するとともに該スクリユー７，７の
位置する底部６は２連の溝型とし且つ垂直に立ち
上る側壁５，５にてトラフを構成し、上記開口部
１１と該トラフの後端の排出口１２に開閉扉８，
１４を有して成る土砂排出装置。 In a device that penetrates the bulkhead 2 of a shield excavator and discharges excavated soil from the face to the rear, two screws 7, 7 are connected to the rear so as to pass through the opening 11 at the bottom of the bulkhead 2, and the screws 7, 7 are connected to the rear on an upward slope or horizontally. The bottom part 6 where the screws 7, 7 are located is formed into a double groove type, and the vertically rising side walls 5, 5 constitute a trough, and the opening 11 and the outlet at the rear end of the trough are connected to each other. 12 , opening/closing door 8,
An earth and sand discharge device comprising 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985023730U JPH0333834Y2 (en) | 1985-02-21 | 1985-02-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985023730U JPH0333834Y2 (en) | 1985-02-21 | 1985-02-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61141400U JPS61141400U (en) | 1986-09-01 |
| JPH0333834Y2 true JPH0333834Y2 (en) | 1991-07-17 |
Family
ID=30517227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985023730U Expired JPH0333834Y2 (en) | 1985-02-21 | 1985-02-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0333834Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5131443U (en) * | 1974-08-30 | 1976-03-08 | ||
| JPS5342988Y2 (en) * | 1975-01-07 | 1978-10-17 |
-
1985
- 1985-02-21 JP JP1985023730U patent/JPH0333834Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61141400U (en) | 1986-09-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |