JPH0244997B2 - MYAKUDOHONPUHAIDOKEINOKYUIRIGAWADOATSUHENDOKEIGENSOCHI - Google Patents
MYAKUDOHONPUHAIDOKEINOKYUIRIGAWADOATSUHENDOKEIGENSOCHIInfo
- Publication number
- JPH0244997B2 JPH0244997B2 JP16334884A JP16334884A JPH0244997B2 JP H0244997 B2 JPH0244997 B2 JP H0244997B2 JP 16334884 A JP16334884 A JP 16334884A JP 16334884 A JP16334884 A JP 16334884A JP H0244997 B2 JPH0244997 B2 JP H0244997B2
- Authority
- JP
- Japan
- Prior art keywords
- earth
- pulsating pump
- sand
- forcibly
- pulsating
- 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 - Lifetime
Links
- 239000004576 sand Substances 0.000 claims description 19
- 239000002689 soil Substances 0.000 claims description 12
- 238000007599 discharging Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、主として土圧系シールド推進工法
や押管工法などに使用する切羽吸入側の土圧変動
を軽減させるための脈動ポンプ排土系の吸入側土
圧変動軽減装置に関するものである。Detailed Description of the Invention (Field of Industrial Application) This invention is a pulsating pump earth evacuation system for reducing earth pressure fluctuations on the face suction side, which is mainly used in earth pressure system shield propulsion construction methods, push pipe construction methods, etc. The present invention relates to an earth pressure fluctuation reduction device on the suction side.
（従来技術）
本願発明者は既に、外周に繞設された伸縮ジヤ
ツキなどの複数の伸縮駆動装置操作によつて伸縮
動可能な弾性伸縮筒体と、該弾性伸縮筒体の両端
に夫々連接されたバルブとからなる伸縮土砂移送
機が掘進機に連接され、各バルブの開閉及び弾性
伸縮筒体の伸縮動によつて掘削土砂を順次蠕動
（ぜんどう）状に継続移送することを特徴とする
掘進土砂移送装置を研究開発した。(Prior Art) The present inventor has already discovered an elastic telescopic cylinder that can be extended and contracted by the operation of a plurality of telescoping drive devices such as telescoping jacks installed around the outer periphery, and an elastic cylinder that is connected to both ends of the elastic cylinder. A telescopic earth and sand transfer machine consisting of valves connected to the excavation machine is connected to the excavation machine, and excavated earth and sand are sequentially and continuously transported in a peristaltic manner by opening and closing of each valve and expansion and contraction of an elastic cylinder. We researched and developed a soil transfer device.
しかるにこの従来装置においては、切羽に一定
土圧を保持させ、掘進機に連接された管路系にお
ける弾性伸縮筒体の継続作動吸排土ポンプ、即ち
脈動ポンプが一定速度で推進すると、一定土砂の
連続排土が必要となるものであるが、これを上記
継続吸排土の脈動ポンプにより吸排土を実施する
と、特に推進機と最先脈動ポンプとの間の排土管
路系の排土圧抵抗が極度に増減不均衡となつて切
羽圧力が急減少、急上昇することになり、地山の
土水圧力の安定を保つことができなく、かつ管内
土砂の流動が円滑に行われないなどの大きな欠点
があつた。 However, in this conventional device, a constant earth pressure is maintained at the face, and when a continuously operating earth suction pump, that is, a pulsating pump, of an elastic extensible cylinder in a pipe system connected to an excavator moves at a constant speed, a constant amount of earth and sand is generated. Continuous soil removal is required, but if this is carried out using the above-mentioned continuous soil suction and removal pulsating pump, the soil removal pressure resistance of the earth removal pipe system between the propulsion machine and the first pulsating pump will increase. Major disadvantages include the extreme imbalance in increase and decrease, which causes the face pressure to suddenly decrease or increase, making it impossible to maintain stability in soil water pressure in the ground, and preventing smooth flow of soil within the pipe. It was hot.
（技術的課題）
従つてこの発明においては、脈動ポンプに同調
し、切羽土砂を強制的に吸排土することにより、
切羽圧力の変動を軽微にすることを技術的課題と
する。(Technical problem) Therefore, in this invention, by synchronizing with the pulsating pump and forcibly sucking and discharging the face earth and sand,
The technical challenge is to minimize fluctuations in face pressure.
（技術的手段）
この発明は、上記技術的課題を解決するために
なされた以下説明するような脈動ポンプ排土系の
吸入側土圧変動軽減装置を提供するにある。(Technical Means) The present invention provides a suction-side earth pressure fluctuation reducing device for a pulsating pump earth discharge system as described below, which has been made to solve the above-mentioned technical problem.
図面実施例について説明すると、先端に推進機
１が備えられた吸排管路２には、第１図に示すよ
うに２個の脈動ポンプ３ａ，３ｂと、該脈動ポン
プ３ａ，３ｂの後端に夫々接続介装された２個の
バルブV1，V2とが夫々設けられている。また推
進機１及び脈動ポンプ３ａ間の排土管路２に、必
要に応じた強制的な容積変化によつて蓄土、排土
が強制的に行えるベロー形の強制バランサー７が
接続介装されている。なお両脈動ポンプ３ａ，３
ｂは伸縮ジヤツキ６による強制的操作の弾性伸縮
筒体３a′，３b′で構成されている。５はガイド筒
である。また両バルブV1，V2は、クラツシング
バルブの場合が例示してあり、４は夫々の弁体で
ある。さらに前記強制バランサー７は、テレスコ
ピツク式のガイド筒９内のベロー８が伸縮ジヤツ
キ１０操作によつて伸縮動する構成となつてい
る。しかしてこの発明は、脈動ポンプに同調し、
切羽土砂を強制的に吸排土することにより切羽圧
力の変動を軽微ならしめることを特徴とするもの
である。 To explain the embodiment in the drawings, as shown in FIG. 1, a suction/exhaust pipe 2 equipped with a propulsion device 1 at its tip includes two pulsating pumps 3a, 3b, and a pump at the rear end of the pulsating pumps 3a, 3b. Two valves V 1 and V 2 are provided, respectively, which are connected to each other. In addition, a bellows-type forced balancer 7 is connected to the soil discharge pipe 2 between the propulsion device 1 and the pulsating pump 3a, and is capable of forcibly accumulating and discharging soil by forcibly changing the volume as necessary. There is. Note that both pulsating pumps 3a, 3
b is composed of elastic telescopic cylinders 3a' and 3b' which are forcibly operated by a telescopic jack 6. 5 is a guide tube. Further, both valves V 1 and V 2 are illustrated as crushing valves, and 4 is a respective valve body. Furthermore, the forcible balancer 7 is constructed such that a bellows 8 within a telescopic guide cylinder 9 is moved to expand and contract by operating a telescoping jack 10. However, this invention is tuned to a pulsating pump,
This system is characterized by minimizing fluctuations in face pressure by forcibly sucking up and removing sand from the face.
（実施例）
この発明装置の作動実施例を第１図の作動工程
図及び第２図の工程図表について詳しく説明す
る。(Example) An example of the operation of this invention device will be described in detail with reference to the operation process diagram in FIG. 1 and the process diagram in FIG. 2.
先ずこの実施例では、脈動ポンプ３ａまたは３
ｂの土砂吸排土のサイクル時間が12回／分、即ち
５秒間に１回サイクルを行い、かつ推進機１の連
続掘進に伴う切羽側土砂の吸入量Ｑが6.28／
secで、強制バランサー７のキヤパシテイ（許容
容積）が24、そしてバルブV1，V2の開閉時間
及び強制バランサー７の吸入、排土に伴う上昇、
下降時間を夫々第２図に示す通りとする。 First, in this embodiment, the pulsating pump 3a or 3
The cycle time of sucking and discharging soil in b is 12 times/min, that is, the cycle is performed once every 5 seconds, and the suction amount Q of sand on the face side due to continuous excavation of the propulsion unit 1 is 6.28/min.
sec, the capacity (allowable volume) of the forced balancer 7 is 24, and the opening/closing time of the valves V 1 and V 2 and the rise due to the suction and removal of soil of the forced balancer 7,
The descending time is as shown in FIG. 2.
先ず第１図イの状態では、バルブV2が閉じ、
バルブV1が開き始めの状態で、脈動ポンプ３ａ
が縮み脈動ポンプ３ｂが伸長した状態にあると共
に強制バランサー７は伸長して推進機１側から連
続的に吸入されて来た6.28／secの土砂が吸入
されて14.51貯溜されている状態にある。そこ
でこの状態から推進機１が順次連続的に掘進され
6.28／secの土砂が順次連続吸入される。この
際該吸入土砂は推進機１からバルブV2まで土砂
が充満しているため、第１図矢印のように強制バ
ランサー７内に順次吸入されて上方へ伸長して行
く。またこの際同時にバルブV1が閉じを始める。
そして0.61秒経過するとバルブV1が閉じ終り、
3.84の土砂が強制バランサー７内に吸入され
る。また上記バルブV1が閉止すると同時にバル
ブV2が開き始め、0.9秒経過して開き終えると共
にさらに5.65の土砂が流入して強制バランサー
７内には許容量の24が貯溜された第１図ロの状
態となる。次に上記状態から脈動ポンプ３ａが伸
長し、脈動ポンプ３ｂが縮む状態となつて、バル
ブV1が矢印方向へ所要時間1.18秒でスライドし、
即ちこの時6.28×５≒31.4の土砂が脈動ポンプ
３ａ，３ｂによつて右方矢印方向へ搬送される。
そしてこの場合、伸長した脈動ポンプ３ａ側の方
へ強制バランサー７内の24の土砂と、順次推進
機１側から連続吸入される土砂6.28／secとが
合流して充満される第１図ハの状態となる。次に
上記の状態から推進機１の掘進で6.28／secの
土砂が強制バランサー７内に吸入されると共にバ
ルブV2が閉じ始める。そして0.61秒経過すると強
制バランサー７内に3.84の土砂が吸入されると
共にバルブV2が閉じる。そしてバルブV2が閉じ
ると同時にバルブV1が開き始めて0.9秒経過して
バルブV1が開き、同時に強制バランサー７内に
さらに5.65の土砂が吸入貯溜される。（第１図
ニ，ホ参照）次に上記状態から脈動ポンプ３ａが
縮み脈動ポンプ３ｂが伸長してバルブV1が0.8秒
の所要時間で矢印左方向へスライドし、また推進
機１からの土砂6.28×0.8≒5.02が強制バラン
サー７内へ吸入される第１図ヘの状態となる。こ
れで１サイクルを完了したもので、これから再び
第１図イの状態に戻るという具合にして上記作動
を繰返し行うものである。 First, in the state shown in Figure 1A, valve V2 is closed,
With valve V 1 starting to open, pulsating pump 3a
is contracted and the pulsating pump 3b is in an extended state, and at the same time, the forced balancer 7 is in an extended state, and 6.28/sec of earth and sand that has been continuously sucked in from the propulsion unit 1 side is sucked in and stored at 14.51. Therefore, from this state, the propulsion machine 1 excavates continuously one after another.
Sediment at a rate of 6.28/sec is continuously inhaled. At this time, the suctioned earth and sand is filled with earth and sand from the propulsion unit 1 to the valve V2 , so that it is successively sucked into the forced balancer 7 and extends upward as shown by the arrow in FIG. Also, at the same time, valve V 1 begins to close.
Then, after 0.61 seconds, valve V 1 finishes closing,
3.84 of the earth and sand are sucked into forced balancer 7. At the same time as the valve V 1 is closed, the valve V 2 begins to open, and when it finishes opening after 0.9 seconds, an additional 5.65 m of earth and sand flows in, and the allowable amount of 24 m is stored in the forced balancer 7. The state will be as follows. Next, from the above state, the pulsating pump 3a expands and the pulsating pump 3b contracts, and the valve V1 slides in the direction of the arrow in a required time of 1.18 seconds.
That is, at this time, 6.28 x 5≒31.4 earth and sand are transported in the right arrow direction by the pulsating pumps 3a and 3b.
In this case, the extended pulsating pump 3a side is filled with 24 pieces of earth and sand in the forced balancer 7 and 6.28/sec of earth and sand that are successively sucked in from the propulsion unit 1 side, as shown in Fig. 1 (c). state. Next, from the above state, as the propulsion device 1 excavates, earth and sand are sucked into the forced balancer 7 at a rate of 6.28/sec, and the valve V 2 begins to close. Then, after 0.61 seconds have elapsed, 3.84 of the earth and sand are sucked into the forced balancer 7, and the valve V2 is closed. Then, at the same time as the valve V 2 closes, the valve V 1 begins to open, and after 0.9 seconds have elapsed, the valve V 1 opens, and at the same time, an additional 5.65 pieces of earth and sand are sucked and stored in the forced balancer 7. (See Figure 1 D and E) Next, from the above state, the pulsating pump 3a contracts, the pulsating pump 3b expands, and the valve V 1 slides in the left direction of the arrow in the required time of 0.8 seconds, and the sediment from the propulsion unit 1 is removed. 6.28×0.8≒5.02 is sucked into the forced balancer 7, resulting in the state shown in Figure 1. This completes one cycle, and the operation described above will be repeated by returning to the state shown in FIG. 1A.
この発明は叙上のように、推進機及び最先の脈
動ポンプ間に必要に応じた強制的な容積変化によ
つて蓄土、排土が強制的に行えるベロー形の強制
バランサーが接続介装されてなるものであるか
ら、脈動ポンプに同調し、切羽土砂を強制的に吸
排土することにより、吸入側切羽圧力の変動を軽
減させることができるもので、切羽圧力の急減
少、急上昇を防遮して地山の土水圧力の安定を常
に保つことができる卓抜した効果がある。なおま
た吸入抵抗も減つて吸入し易くなり、管内土砂の
移動がスムーズに行える効果がある。 As described above, this invention has a bellows-type forced balancer connected between the propulsion machine and the first pulsating pump, which can forcefully accumulate and remove earth by changing the volume as necessary. Therefore, by synchronizing with the pulsating pump and forcibly sucking and discharging the earth and sand from the face, it is possible to reduce fluctuations in the pressure at the suction side face, thereby preventing a sudden decrease or sudden rise in the face pressure. It has the outstanding effect of keeping the soil water pressure in the ground stable at all times. Furthermore, suction resistance is reduced, making suction easier, and the effect is that the movement of sediment within the pipe can be carried out smoothly.
図面はこの発明の実施例を示すもので、第１図
イ〜ヘは各段階の作動工程図、第２図は工程図
表、第３図は要部の拡大正面図である。
１……推進機、２……排土管路、３ａ，３ｂ…
…脈動ポンプ、３a′，３b′……弾性伸縮筒体、４
……弁体、５……ガイド筒、６……伸縮ジヤツ
キ、７……強制バランサー、８……ベロー、９…
…ガイド筒、１０……伸縮ジヤツキ、V1，V2…
…バルブ、Ｑ……吸入量。
The drawings show an embodiment of the present invention, and FIG. 1A to F are operation process diagrams of each stage, FIG. 2 is a process chart, and FIG. 3 is an enlarged front view of the main parts. 1... Propulsion machine, 2... Earth removal pipe, 3a, 3b...
...Pulsating pump, 3a', 3b'...Elastic telescopic cylinder, 4
... Valve body, 5 ... Guide cylinder, 6 ... Telescopic jack, 7 ... Forced balancer, 8 ... Bellows, 9 ...
...Guide tube, 10...Telescopic jack, V 1 , V 2 ...
...Valve, Q...Inhalation amount.
Claims (1)
体でなる複数の脈動ポンプと、該各脈動ポンプの
後端に夫々接続介装されたバルブと、推進機及び
最先の脈動ポンプ間に接続介装されていて必要に
応じた強制的な容積変化によつて蓄土、排土が強
制的に行えるベロー形の強制バランサーとからな
り、脈動ポンプに同調し、切羽土砂を強制的に吸
排土することにより切羽圧力の変動を軽微ならし
めることを特徴とする脈動ポンプ排土系の吸入側
土圧変動軽減装置。1 A plurality of pulsating pumps made of forcibly operated elastic telescoping cylinders in the earth removal pipe system, a valve connected and interposed at the rear end of each pulsating pump, and a connection between the propulsion machine and the first pulsating pump. It consists of a bellows-shaped forced balancer that is installed in the system and can forcibly accumulate and remove soil by forcibly changing the volume as necessary.It synchronizes with the pulsating pump and forcibly sucks up and removes earth and sand from the face. A device for reducing earth pressure fluctuations on the suction side of a pulsating pump earth discharge system, characterized in that fluctuations in face pressure are made slight by doing so.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16334884A JPH0244997B2 (en) | 1984-08-01 | 1984-08-01 | MYAKUDOHONPUHAIDOKEINOKYUIRIGAWADOATSUHENDOKEIGENSOCHI |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16334884A JPH0244997B2 (en) | 1984-08-01 | 1984-08-01 | MYAKUDOHONPUHAIDOKEINOKYUIRIGAWADOATSUHENDOKEIGENSOCHI |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6140995A JPS6140995A (en) | 1986-02-27 |
| JPH0244997B2 true JPH0244997B2 (en) | 1990-10-05 |
Family
ID=15772173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16334884A Expired - Lifetime JPH0244997B2 (en) | 1984-08-01 | 1984-08-01 | MYAKUDOHONPUHAIDOKEINOKYUIRIGAWADOATSUHENDOKEIGENSOCHI |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0244997B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6355380A (en) * | 1986-08-25 | 1988-03-09 | Kawase Tekko Kk | Soil and sand, muddy water and the like conveying device |
| JPH0660559B2 (en) * | 1988-06-24 | 1994-08-10 | 東京電力株式会社 | Excavator with earth and sand pressure adjustment function |
| JP4892243B2 (en) * | 2006-01-30 | 2012-03-07 | 大王製紙株式会社 | Tissue paper storage box |
-
1984
- 1984-08-01 JP JP16334884A patent/JPH0244997B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6140995A (en) | 1986-02-27 |
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