JP2711037B2 - Shaft excavation method - Google Patents
Shaft excavation methodInfo
- Publication number
- JP2711037B2 JP2711037B2 JP27120791A JP27120791A JP2711037B2 JP 2711037 B2 JP2711037 B2 JP 2711037B2 JP 27120791 A JP27120791 A JP 27120791A JP 27120791 A JP27120791 A JP 27120791A JP 2711037 B2 JP2711037 B2 JP 2711037B2
- Authority
- JP
- Japan
- Prior art keywords
- girder
- cutting
- support column
- shaft
- 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.)
- Expired - Fee Related
Links
Landscapes
- Earth Drilling (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は立坑掘削方法に係るもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shaft excavation method.
【０００２】[0002]
【従来の技術】従来の立坑掘削においては、掘削工程と
山留部材の架設工程とを交互に反覆していた。2. Description of the Related Art In the conventional shaft excavation, the excavation process and the erection process of the retaining member are alternately repeated.
【０００３】[0003]
【発明が解決しようとする課題】前記の工程は殆んど人
力によるため、多大の手間と時間を要し、施工精度及び
安全面で難点があった。本発明は前記従来技術の有する
問題点に鑑みて提案されたもので、その目的とする処
は、無人化施工が図られ、施工性が向上され、工期が短
縮され、施工精度、安全性が改善された立坑掘削方法を
提供する点にある。Since the above-described steps are almost manually performed, a great deal of labor and time are required, and there are difficulties in construction accuracy and safety. The present invention has been proposed in view of the problems of the prior art described above, and the object thereof is to achieve unmanned construction, improve workability, shorten the construction period, improve construction accuracy and safety. It is to provide an improved shaft excavation method.
【０００４】[0004]
【課題を解決するための手段】前記の目的を達成するた
め、本発明に係る立坑掘削方法によれば、立坑を１次掘
削して１段梁を取付け、同１段梁に支持柱を昇降自在に
取付け、同各支持柱のブラケツトに亘ってレール付き走
行桁を架設し、相対する一双の走行桁のレール間に、切
削部材及び切削土吸込み部を具えた土砂切削機が移動自
在に装架された可動横行桁を載架し、坑内に泥水を注入
して、前記土砂切削機を前記横行桁に沿って移動させる
とともに、同横行桁を前記走行桁に沿って移動させなが
ら底部を掘削し、前記切削土吸込部を介して切削泥水を
吸い揚げたのち、前記支持柱を下降して２次掘削を行な
って２段梁を架設し、以下前記の工程を反覆するもので
ある。In order to achieve the above object, according to the shaft excavation method of the present invention, a shaft is firstly excavated, a single-stage beam is attached, and a support column is raised and lowered on the single-stage beam. A traveling girder with rails is erected over the brackets of the support columns, and a soil and sand cutter equipped with a cutting member and a cut-soil suction portion is movably mounted between the rails of one pair of opposing traveling girder. The suspended movable traversing girder is mounted, muddy water is injected into the mine, the earth and sand cutting machine is moved along the traversing girder, and the bottom is excavated while moving the traversing girder along the traveling girder. Then, after the cutting muddy water is sucked up through the cutting soil suction portion, the support pillar is lowered to perform secondary excavation, thereby constructing a two-stage beam, and the above steps are repeated.
【０００５】[0005]
【作用】本発明は立坑の１次掘削後、底部に架設された
１段梁に支持柱を昇降自在に取付け、同各支持柱のブラ
ケツト間に亘って、上面にレールが配設された走行桁を
装架し、土砂切削部材及び切削土吸込み部とを具えた土
砂切削機が長手方向に移動自在に装架された横行桁を前
記走行桁に載架することによって、同横行桁をその長手
方向と直角方向に移動自在とする。そして泥水を坑内に
注水したのち、前記土砂切削機を横行桁上に沿って移動
するとともに、同横行桁を相隣る支持柱のブラケツト間
に架設された走行桁のレールに沿って移動せしめ、かく
して前記土砂切削機を坑内における互いに直交する２方
向に移動させながら前記土砂切削部材によって泥水掘削
し、切削土を泥水とともに、前記切削土吸込み部より吸
揚げることによって、泥水により立坑内壁の崩落を防止
しながら立坑を掘削する。According to the present invention, after primary excavation of a shaft, a supporting column is attached to a single-stage beam erected at the bottom so as to be able to move up and down, and a rail is provided on a top surface between brackets of each supporting column. A girder is mounted, and a traversing girder equipped with an earth and sand cutting member and a cutting soil suction part is mounted on the traveling girder by a traversing girder movably mounted in the longitudinal direction, thereby forming the traversing girder on the girder. It can be moved in the direction perpendicular to the longitudinal direction. And after pouring muddy water into the pit, the earth and sand cutting machine is moved along the traversing girder, and the traversing girder is moved along the rail of the traveling girder erected between the brackets of the adjacent support columns, Thus, while moving the earth and sand cutting machine in two directions orthogonal to each other in the pit, muddy water is excavated by the earth and sand cutting member, and the cut soil is sucked together with the muddy water from the cut-soil suction portion, so that the inner wall of the shaft is disintegrated by the muddy water. Drill a shaft while preventing.
【０００６】前記掘削作業の進行に伴って前記支持柱を
下降させ、立坑内底部の２次掘削を行ない、２段梁を架
設し、同２段梁に支持柱を昇降自在に取付け、以下前記
の工程を反覆して立坑を掘削する。With the progress of the excavation work, the support column is lowered, secondary excavation of the bottom of the shaft is performed, a two-stage beam is erected, and the support column is attached to the second-stage beam so as to be able to move up and down. A shaft is excavated by repeating the above steps.
【０００７】[0007]
【実施例】以下本発明を図示の実施例について説明す
る。立坑を１次掘削し、１段梁１を取付け、同１段梁１
に固定装置２を介して支持柱３を取付ける。同支持柱３
は２段梁の取付予定位置より１．５ｍ程度降下できる長
さとし、１段梁１と支持柱３に装架したギヤ装置４によ
って降下されるように構成されている。BRIEF DESCRIPTION OF THE DRAWINGS FIG. The shaft was excavated first, and the first-stage beam 1 was attached.
The support column 3 is attached via the fixing device 2. Support column 3
Is designed to be able to descend by about 1.5 m from the mounting position of the two-stage beam, and is configured to be lowered by the gear device 4 mounted on the first-stage beam 1 and the support column 3.
【０００８】立坑掘削部の両側に引設された各支持柱３
のブラケツト５間に亘って、上面にレール６が敷設され
た走行桁７が架設され、相対する走行桁７のレール６上
に横行桁８が移動自在に橋架され、同横行桁８には切削
ビツト９の如き切削部材と端部切削用高圧ジエツトノズ
ル１０と、切削土吸込み部１１を具えた土砂切削機１２
が移動自在に装架され、立坑掘削本体が構成されてい
る。[0008] Each support column 3 installed on both sides of the shaft excavation section
A running girder 7 having a rail 6 laid on the upper surface is erected between the brackets 5, and a traversing girder 8 is movably bridged on the rail 6 of the opposing running girder 7, and the traverse girder 8 is A cutting member such as a bit 9, a high-pressure jet nozzle 10 for cutting an end portion, and a sediment cutting machine 12 having a cutting soil suction portion 11.
Are movably mounted to constitute a shaft excavation body.
【０００９】図中１３は１段切梁、１４は火打ち材を示
す。而して泥水処理設備をセツトして坑内に泥水ａを常
に前記ビツト９がかくれる程度に注水する。この状態で
前記土砂切削機１２の切削ビツト９を駆動するととも
に、横行桁８に沿って走行させ、且つ同横行桁８を走行
桁７に沿って移動させ、切削ビツト９の先端よりジエツ
ト方式によつて泥水を噴射し、坑内を泥水掘削するとと
もに、切削土を泥水とともに切削土吸込み部１１より吸
い揚げる。なお立坑端部は前記切削用高圧ジエツトノズ
ル１０によって切削する。In the drawing, reference numeral 13 denotes a one-stage cut beam, and reference numeral 14 denotes a fired material. Then, the muddy water treatment equipment is set, and the muddy water “a” is constantly injected into the pit to such an extent that the bit 9 is covered. In this state, the cutting bit 9 of the earth and sand cutting machine 12 is driven, and the cutting bit 9 is moved along the traversing girder 8 and the traversing girder 8 is moved along the traveling girder 7. Muddy water is injected to excavate muddy water in the mine, and the cut soil is sucked up together with the muddy water from the cut-soil suction portion 11. The shaft end is cut by the high-pressure jet nozzle 10 for cutting.
【００１０】次いで支持柱３を降下させ、梁下約１．５
ｍまで堀り下げ、前記本体を一旦引上げ、２段腹起しを
装架したのちまた降下して、支持柱３を２段梁１′に固
定装置２を介して取付け、１段目の固定装置２を取り、
２段目の切梁、火打材を取付ける前に、前記本体を２段
腹起し材の下（掘削完了面）まで引下げてから切梁、火
打材を架設する。Next, the support column 3 is lowered, and about 1.5
m, pull up the main body once, mount it on a two-stage upright, lower it again, attach the support column 3 to the second-stage beam 1 'via the fixing device 2, and fix the first stage. Take device 2,
Before attaching the second cut beam and the fired material, the main body is pulled down to below the two-step bulging material (excavation completion surface), and then the cut beam and the fired material are erected.
【００１１】次いで第３次掘削に入り以下前記工程を反
覆して立坑を掘削する。Next, a third excavation is started, and the above steps are repeated to excavate a shaft.
【００１２】[0012]
【発明の効果】本発明によれば前記支持柱の降下、横行
桁及び同横行桁上の土砂切削機の移動、掘削、掘削土及
び泥水の排除を自動的に行なうことができ、立坑の掘削
を無人化、機械化工法によって行なうことができ、施工
性が向上され、施工精度が改善される。また本発明によ
れば立坑が泥水掘削によって行なわれるので立坑周壁の
崩落が防止され、安全性がより向上する。According to the present invention, the lowering of the support column, the movement of the traversing girder and the earth and sand cutter on the traversing girder, excavation, excavation of excavated soil and mud can be automatically performed, and the excavation of the shaft Can be performed by an unmanned and mechanized construction method, the workability is improved, and the work accuracy is improved. Further, according to the present invention, since the shaft is excavated by muddy water, collapse of the peripheral wall of the shaft is prevented, and safety is further improved.
【図１】本発明に係る竪坑掘削方法の一実施例の実施状
況を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing an embodiment of a shaft excavation method according to the present invention.
【図２】図１の平面図である。FIG. 2 is a plan view of FIG.
１ １段梁 ２ 固定装置 ３ 支持柱 ４ ギヤ装置 ５ ブラケツト ６ レール ７ 走行桁 ８ 横行桁 ９ 切削ビツト １０ 切削用高圧ジエツトノズル １１ 切削土吸込み部 １２ 土砂切削機 １３ １段切梁 １４ 火打材 DESCRIPTION OF SYMBOLS 1 1 step beam 2 Fixing device 3 Support pillar 4 Gear device 5 Bracket 6 Rail 7 Traveling girder 8 Crossing girder 9 Cutting bit 10 High pressure jet nozzle for cutting 11 Cutting soil suction part 12 Earth and sand cutting machine 13 1st step cutting beam 14
Claims (1)
１段梁に支持柱を昇降自在に取付け、同各支持柱のブラ
ケツトに亘ってレール付き走行桁を架設し、相対する一
双の走行桁のレール間に、切削部材及び切削土吸込み部
を具えた土砂切削機が移動自在に装架された可動横行桁
を載架し、坑内に泥水を注入して、前記土砂切削機を前
記横行桁に沿って移動させるとともに、同横行桁を前記
走行桁に沿って移動させながら底部を掘削し、前記切削
土吸込部を介して切削泥水を吸い揚げたのち、前記支持
柱を下降して２次掘削を行なって２段梁を架設し、以下
前記の工程を反覆することを特徴とする立坑掘削方法。1. A vertical shaft is firstly excavated, a single-stage beam is attached, and a support column is attached to the first-stage beam so as to be able to move up and down, and a traveling girder with rails is erected across a bracket of each support column. A movable traversing girder movably mounted with a cutting member and a cutting soil suction part is mounted between the rails of one pair of traveling girders, and muddy water is injected into a pit, and the earth and sand cutting machine is provided. While moving the traversing girder along the traveling girder, excavating the bottom, sucking up the cutting muddy water through the cutting soil suction part, and then lowering the support column. A second excavation is performed to construct a two-stage beam, and the above steps are repeated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27120791A JP2711037B2 (en) | 1991-10-18 | 1991-10-18 | Shaft excavation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27120791A JP2711037B2 (en) | 1991-10-18 | 1991-10-18 | Shaft excavation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05106389A JPH05106389A (en) | 1993-04-27 |
| JP2711037B2 true JP2711037B2 (en) | 1998-02-10 |
Family
ID=17496844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27120791A Expired - Fee Related JP2711037B2 (en) | 1991-10-18 | 1991-10-18 | Shaft excavation method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2711037B2 (en) |
-
1991
- 1991-10-18 JP JP27120791A patent/JP2711037B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05106389A (en) | 1993-04-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |