JPH04315699A - Mucking method for tunnel construction - Google Patents
Mucking method for tunnel constructionInfo
- Publication number
- JPH04315699A JPH04315699A JP10828391A JP10828391A JPH04315699A JP H04315699 A JPH04315699 A JP H04315699A JP 10828391 A JP10828391 A JP 10828391A JP 10828391 A JP10828391 A JP 10828391A JP H04315699 A JPH04315699 A JP H04315699A
- Authority
- JP
- Japan
- Prior art keywords
- bucket
- vessel
- dump truck
- shear
- muck
- 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
- 238000000034 method Methods 0.000 title claims description 11
- 238000010276 construction Methods 0.000 title claims description 10
- 238000009412 basement excavation Methods 0.000 claims description 19
- 238000010008 shearing Methods 0.000 claims description 6
- 238000007790 scraping Methods 0.000 abstract 1
- 238000005422 blasting Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
【0001】0001
【産業上の利用分野】本発明は、主として山岳トンネル
等の削岩、爆破、ずり出し、支保工組立と一連の作業を
順次施工して掘進するトンネル施工におけるずり出し工
法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing tunnels, such as mountain tunnels, in which a series of operations including rock drilling, blasting, shearing, and support assembly are carried out in sequence.
【0002】0002
【従来の技術】削岩、爆破、ずり出し、支保工組立と一
連の作業を順次施工して掘進するトンネル施工において
は、穿孔、爆破などにより切崩した岩片、土砂等のずり
を抗外に搬出するずり出し作業がトンネル掘進速度を支
配する主要な要素である。かかるずり出し作業を行なう
ずり出し工法としては種々の工法が知られている。例え
ば、サイドダンプバケットを備えたホイール式の掘削積
込機によりずりをダンプトラックのベッセルに積み込ん
で運搬する工法が知られている。[Prior Art] In tunnel construction, in which a series of operations such as rock drilling, blasting, shearing, and shoring assembly are performed in order, the shear of rock fragments, earth, etc. that have been cut down by drilling, blasting, etc. The shearing operation for carrying out is the main factor controlling the tunnel excavation speed. Various methods are known for carrying out such offset work. For example, there is a known construction method in which shear is loaded into a vessel of a dump truck using a wheel-type excavator and loader equipped with a side dump bucket.
【0003】0003
【発明が解決しようとする課題】前述のずり出し工法で
あると、ホイール式掘削積込機がずりをバケット内に掬
い込む工程、ダンプトラックまで運搬走行する工程、バ
ケットをサイドダンブトラックにずりを積込む工程、ず
りまで空荷走行する工程があり、ホイール式掘削機によ
るずりの掬い込み積込みの時間が長くなるし、ホイール
式掘削機が掬い込み位置と積込み位置とに複数回往復走
行する際に切羽近くに飛散したずりにタイヤが乗り上げ
て転倒したり、狭いトンネル内で走行してダンプトラッ
クと並列として積込みするから走行幅が狭くダンプトラ
ックやトンネル内壁、又はトンネル内の作業者に衝突す
ることがあって大変危険である。また、サイドダンプバ
ケットのダンピングリーチは短かく、しかもダンプトラ
ックの側方からベッセルにずりに積込みするので、ベッ
セル内にずりを幅方向均一に積込むのが困難となるし、
バケットとベッセルが干渉してバケットやベッセルを破
損し易い。[Problems to be Solved by the Invention] In the above-mentioned offset construction method, there is a process in which the wheel type excavator and loader scoops the shear into the bucket, a process in which it is transported to a dump truck, and a step in which the bucket is transferred to the side dump truck. There is a loading process and a process of running empty until the shear is reached, which increases the time it takes for the wheel excavator to scoop and load the shear, and when the wheel excavator travels back and forth between the scooping position and the loading position multiple times. Tires may run on debris scattered near the face and fall over, or the vehicle may collide with the dump truck, the inner wall of the tunnel, or workers inside the tunnel due to the narrow running width of the vehicle because it runs in a narrow tunnel and is loaded parallel to the dump truck. This is extremely dangerous. In addition, the dumping reach of the side dump bucket is short, and since the dump truck is loaded into the vessel from the side of the dump truck, it is difficult to load the shear into the vessel evenly in the width direction.
The bucket and vessel are likely to interfere and damage the bucket and vessel.
【0004】そこで、本発明は前述の課題を解決できる
ようにしたトンネル施工におけるずり出し工法を提供す
ることを目的とする。SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a method of offset construction in tunnel construction that can solve the above-mentioned problems.
【0005】[0005]
【課題を解決するための手段】ボトムダンプ式のバケッ
トを上下揺動及び旋回自在とした掘削積込機を切羽の近
くに停止させ、バケットを上下揺動及び旋回してずりを
掬い込み、ダンプトラックのベッセルに積込み動作を繰
り返してダンプトラックのベッセル内にずりを積載する
ずり出し工法。[Means for solving the problem] An excavation loading machine with a bottom dump type bucket that can be vertically oscillated and rotated is stopped near the face, the bucket is vertically oscillated and swiveled to scoop up shear, and then dumped. A shearing method that loads shear into the dump truck's vessel by repeating loading operations into the truck's vessel.
【0006】[0006]
【作用】バケットの上下揺動と旋回によってずりの掬い
込み、積込みするから、ずりの掬い込み、積込み時間を
短かくできるし、掘削積込機がダンプトラック、トンネ
ル内壁、作業者と衝突しないようにでき、しかもバケッ
トをベッセルの任意の位置に移動してベッセル内にずり
を均一に積込むことができる。[Operation] Since the bucket scoops and loads the shear by vertically swinging and rotating, the time for scooping and loading the shear can be shortened, and it prevents the excavation and loading machine from colliding with the dump truck, tunnel inner wall, and workers. Moreover, by moving the bucket to any position in the vessel, the shear can be evenly loaded into the vessel.
【0007】[0007]
【実 施 例】図1,図2,図3に示すように、切
羽爆破後にトンネル1の切羽2近くにおけるトンネル中
心より一側寄り位置にボトムダンプ式のバケット3を備
えた旋回式の掘削積込機4を走行して停止し、この掘削
積込機4のトンネル中心を反対側方にダンプトラック5
を走行して停止させる。前記掘削積込機4はクローラ式
走行体6に上部車体7を360度旋回可能に取付け、こ
の上部車体7にブーム8を上下揺動自在に取付け、その
ブーム8にボトムダンプ式のバケット3を備えたアーム
9を上下揺動自在に取付けてある。上部車体7を旋回し
てバケット3を切羽2と対向させ、ブーム8,アーム9
を上下揺動すると同時にバケット3を掬い込み動作して
ずりを掬い込み、上部車体7を90度旋回しながらバケ
ット3を上方に揺動して図4,図5のようにバケット3
をダンプトラック5のベッセル10上に移動してバケッ
ト3をボトムダンプしてずりをベッセル10内に積み込
み、その後に上部車体7を90度旋回して図1,図2,
図3に示す位置とする。この動作を繰り返してずりをダ
ンプトラック5のベッセル10内に積込みし、満積とな
ったらダンプトラック5を走行してずりをトンネル外に
運搬する。[Example of implementation] As shown in Figures 1, 2, and 3, a rotating excavation pile is installed with a bottom dump type bucket 3 located near the face 2 of the tunnel 1 on one side of the tunnel center after the face is blown up. The loading machine 4 travels and stops, and the dump truck 5 moves toward the opposite side of the center of the tunnel of this excavating and loading machine 4.
Run and stop. The excavation and loading machine 4 has an upper body 7 attached to a crawler type traveling body 6 so as to be able to rotate 360 degrees, a boom 8 attached to the upper body 7 so as to be able to swing vertically, and a bottom dump type bucket 3 attached to the boom 8. An arm 9 is attached so as to be able to swing up and down. Turn the upper body 7 so that the bucket 3 faces the face 2, and move the boom 8 and arm 9.
At the same time as the bucket 3 is moved up and down, the bucket 3 is scooped up to scoop up the waste, and while the upper vehicle body 7 is turned 90 degrees, the bucket 3 is moved upward as shown in FIGS. 4 and 5.
is moved onto the vessel 10 of the dump truck 5, the bucket 3 is bottom dumped, and the shear is loaded into the vessel 10, and then the upper body 7 is turned 90 degrees and
The position is shown in FIG. This operation is repeated to load the shedding into the vessel 10 of the dump truck 5, and when the vessel 10 of the dump truck 5 is full, the dump truck 5 is driven to transport the shedding out of the tunnel.
【0008】次に比較例を説明する。図3に示す断面形
状で断面積が95m2 のトンネル掘進におけるずり出
しとして、株式会社小松製作所製WA600ホイールロ
ーダ(バケット容量4.2m3 )を掘削積込機として
用いて従来工法でずり出した結果、バケット積込能力は
1分間当り約3.36m3 で、ずり出し時間は約19
3分となった。つまり、ずり出し時間は1日のずり量を
バケット積込能力で割った値であり、1日のずり量が6
50m3 、バケット積込能力は3.36m3 である
からずり出し時間は約193分となった。これに対して
、株式会社小松製作所製PC400−5ローディングシ
ョベル(バケット容量2.6m3 )を掘削積込機とし
て用いて前述の工法によってずり出した結果、バケット
積込能力は1分間当り約6.3m3 と大きく、ずり出
し時間は103分となった。このことからも、前述のず
り出し工法によればずり出し時間を短かくできることが
判明する。Next, a comparative example will be explained. When excavating a tunnel with the cross-sectional shape shown in Fig. 3 and a cross-sectional area of 95 m2, a conventional construction method using a WA600 wheel loader manufactured by Komatsu Ltd. (bucket capacity 4.2 m3) was used as an excavation and loading machine. The bucket loading capacity is approximately 3.36 m3 per minute, and the shift time is approximately 19
It was 3 minutes. In other words, the shear time is the amount of shear in one day divided by the bucket loading capacity, and the amount of shear in one day is 6.
Since the area was 50m3 and the bucket loading capacity was 3.36m3, the unloading time was approximately 193 minutes. On the other hand, as a result of using Komatsu Ltd.'s PC400-5 loading shovel (bucket capacity: 2.6m3) as an excavation and loading machine and using the method described above, the bucket loading capacity was approximately 6.5 m3 per minute. It was large at 3m3, and the start-up time was 103 minutes. This also shows that the above-mentioned offset construction method can shorten the offset time.
【0009】また、図4で仮想線で示すようにタンプト
ラック5を掘削積込機4の後方に待機させ、前述のよう
にしてずりを満載したダンプトラック5が走行した後に
前述の待機していたダンプトラック5のベッセル10内
にずりを積込みし、この間に他のダンプトラック5を掘
削積込機5の側方に走行して待機させるようにしても良
い。このようにすれば、掘削積込機5がダンプトラック
5を持つ時間がなくなるから、より一層効率良く短時間
にずり出しできる。また、図6に示すように掘削積込機
4をトンネル1の中心上に位置させ、ダンプトラック5
を掘削積込機4の後方でトンネル中心上に位置させてず
りを積み込むようにしても良い。このようにすれば、掘
削積込機4及びダンプトラック5と左右のトンネル内壁
の間に十分な隙間があり、作業者の安全性を向上できる
。Further, as shown by the imaginary line in FIG. 4, the tamp truck 5 is made to stand by behind the excavation loading machine 4, and after the dump truck 5 fully loaded with shear has traveled as described above, the dump truck 5 is placed in the waiting position as described above. The shear may be loaded into the vessel 10 of the dump truck 5, and during this time, another dump truck 5 may be driven to the side of the excavation loading machine 5 and placed on standby. In this way, the time for the excavation and loading machine 5 to hold the dump truck 5 is eliminated, so that the dumping can be carried out more efficiently and in a shorter time. Further, as shown in FIG. 6, the excavation loading machine 4 is positioned above the center of the tunnel 1, and the dump truck 5
may be positioned behind the excavation loading machine 4 and above the center of the tunnel to load the shear. In this way, there is a sufficient gap between the excavation loader 4 and the dump truck 5 and the left and right tunnel inner walls, improving worker safety.
【0010】0010
【発明の効果】掘削積込機4を走行させずに旋回させて
掬い込み、積込みを行なうから、ずりの掬い込み積込み
の時間が短縮されてずり出し時間を短かくできるし、掘
削積込機4が転倒したり、ダンプトラックやトンネル内
壁、トンネル内の作業者に衝突することがなく安全であ
り、さらに掘削積込機4の旋回角度等を調整することで
バケット3をダンプトラック5のベッセル10の位置の
任意に移動してずりをベッセル内に均一に積込むできる
し、バケット3とベッセル10が干渉してバケット3や
ベッセル10を破損することがない。[Effects of the Invention] Since the excavation and loading machine 4 is scooped and loaded by turning without running, the time for scooping and loading shedding can be shortened, and the time for shearing can be shortened, and the excavation and loading machine It is safe because the bucket 4 does not fall or collide with the dump truck, the tunnel inner wall, or the workers in the tunnel. Furthermore, by adjusting the turning angle of the excavation loading machine 4, the bucket 3 can be moved into the vessel of the dump truck 5. The bucket 3 and the vessel 10 can be moved to any position 10 to uniformly load shear into the vessel, and the bucket 3 and the vessel 10 will not be damaged due to interference.
【図1】掬い込み状態の平面図である。FIG. 1 is a plan view of a scooped-in state.
【図2】掬い込み状態の正面図である。FIG. 2 is a front view of the scooped-in state.
【図3】掬い込み状態の側面図である。FIG. 3 is a side view of the scooped-in state.
【図4】積込み状態の平面図である。FIG. 4 is a plan view in a loaded state.
【図5】積込み状態の側面図である。FIG. 5 is a side view in a loaded state.
【図6】他のずり出し工法の掬い込み状態平面図である
。FIG. 6 is a plan view of the scooped-in state of another offset construction method.
1 トンネル、2 切羽、3 バケット、4
掘削積込機、5 ダンプトラック、10 ベッセル
。1 tunnel, 2 face, 3 bucket, 4
Excavation loader, 5 dump trucks, 10 vessels.
Claims (1)
旋回式の掘削積込機4を切羽2近くに停止し、この掘削
積込機4のバケット3によりずりを掬い込みして旋回さ
せることでバケット3をダンプトラック5のベッセル1
0上に移動させ、その状態でバケット3をボトムダンプ
してずりをベッセル10内に積込み、再び旋回させてバ
ケット3でずりを掬い込む一連の動作を複数回連続して
ずりをダンプトラック5のベッセル10内に積込み、ダ
ンプトラック5を走行してずりを運搬することを特徴と
するトンネル施工におけるずり出し工法。[Claim 1] A rotating excavation loading machine 4 equipped with a bottom dump type bucket 3 is stopped near the face 2, and the bucket 3 of this excavation loading machine 4 scoops up shedding and rotates it. Bucket 3 Dump Truck 5 Vessel 1
In this state, the bucket 3 is bottom dumped to load the shear into the vessel 10, and the bucket 3 is rotated again and the shear is scooped up by the bucket 3. This series of operations is repeated several times in succession to dump the shear into the dump truck 5. A shearing method in tunnel construction, characterized in that the shear is loaded into a vessel 10 and transported by a dump truck 5.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10828391A JPH04315699A (en) | 1991-04-15 | 1991-04-15 | Mucking method for tunnel construction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10828391A JPH04315699A (en) | 1991-04-15 | 1991-04-15 | Mucking method for tunnel construction |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04315699A true JPH04315699A (en) | 1992-11-06 |
Family
ID=14480731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10828391A Pending JPH04315699A (en) | 1991-04-15 | 1991-04-15 | Mucking method for tunnel construction |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04315699A (en) |
-
1991
- 1991-04-15 JP JP10828391A patent/JPH04315699A/en active Pending
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