JPH0493492A - Excavated natural ground monitoring device in natm construction method - Google Patents
Excavated natural ground monitoring device in natm construction methodInfo
- Publication number
- JPH0493492A JPH0493492A JP2209136A JP20913690A JPH0493492A JP H0493492 A JPH0493492 A JP H0493492A JP 2209136 A JP2209136 A JP 2209136A JP 20913690 A JP20913690 A JP 20913690A JP H0493492 A JPH0493492 A JP H0493492A
- Authority
- JP
- Japan
- Prior art keywords
- displacement
- face
- ground
- pit face
- coal pit
- 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
- 238000010276 construction Methods 0.000 title abstract description 19
- 238000012806 monitoring device Methods 0.000 title description 6
- 238000006073 displacement reaction Methods 0.000 claims abstract description 52
- 238000005259 measurement Methods 0.000 claims abstract description 16
- 238000001125 extrusion Methods 0.000 claims description 14
- 238000009412 basement excavation Methods 0.000 abstract description 10
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 239000003245 coal Substances 0.000 abstract 8
- 238000000034 method Methods 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
山岳トンネルの構築工法の一つであるＮＡＴＭ工法は、
地山の耐力を最大限に活用してトンネルを構築するもの
で、シールド工法に比して遥かに安価で、自由な断面の
トンネルを構築することができる。[Detailed description of the invention] (Industrial application field) The NATM method, which is one of the construction methods for mountain tunnels, is
This method makes the most of the bearing capacity of the ground to construct tunnels, is much cheaper than the shield method, and allows the construction of tunnels with arbitrary cross-sections.
本発明は前記工法の合理性、経済性から、最近都市圏内
のトンネル工事での適用が増加している都市ＮＡＴＭ工
法における掘削地山監視装置に係るものである。The present invention relates to an excavated ground monitoring device for the urban NATM construction method, which has recently been increasingly applied to tunnel construction in urban areas due to the rationality and economic efficiency of the construction method.
（従来の技術）
トンネル工事、特に都市ＮＡＴＭ工法のように比較的軟
弱な沖積層や洪積層を対象とする工事では、土被りも浅
く、且つ地下水の存在する土砂地山にトンネルを構築す
るので、切羽が崩壊しないようにするため、また地山の
変位（地表沈下等）によって近隣構造物が影響を受けな
いようにするため、厳重な監視が必要である。(Conventional technology) In tunnel construction, especially in construction that targets relatively soft alluvium or diluvial deposits, such as the urban NATM construction method, the tunnel is constructed in a sandy mountain with shallow earth cover and where groundwater exists. Strict monitoring is required to prevent the face from collapsing and to prevent neighboring structures from being affected by displacement of the ground (ground subsidence, etc.).
トンネル囚の掘削に伴って、トン忍ル周辺地山は第３図
及び第４図に示す如く、水平（縦断及び横断方向）並に
垂直方向の変位が発生し、変位が大きい場合には切羽（
ａ面は崩壊する。With the excavation of the tunnel, the ground around Tonninru undergoes horizontal (longitudinal and transverse) and vertical displacements, as shown in Figures 3 and 4, and if the displacement is large, the face (
The a-side collapses.
このようなトンネル周辺地山に発生する変位の動向を監
視するため、従来から
ａ）挿入式水平傾斜計による前方地山の先行変位の測定
（縦断方向変位）
ｂ）地山に増膜された複数台の傾斜計による前方地山の
先行変位の測定（Ｎ断方向変位）Ｃ）内空変位の測定（
横断方向変位）
ｄ）天端沈下測定（横断方向変位）
等を行って管理してきた。In order to monitor the trend of displacement occurring in the ground around the tunnel, conventional techniques have been used to a) measure the preceding displacement of the ground in front (longitudinal displacement) using an insertable horizontal inclinometer, and b) measure the amount of film added to the ground. Measurement of the preceding displacement of the front ground using multiple inclinometers (displacement in the N-section direction) C) Measurement of the internal displacement (
(transverse direction displacement) d) Top settlement measurement (transverse direction displacement), etc. have been carried out for management.
（発明が解決しようとする諜Ｈ）
しかしながら前記従来の測定方法では、測定に入力を要
し、多くの時間を費し、またリアルタイムに地山の挙動
を把握することができない。更に定置式水平傾斜計によ
る測定の場合、トンネルの縦断方向全線に多数の傾斜計
を増膜して設置すると、著しくコストが嵩み、また各傾
斜計からのケーブル配線のスペースがとれない。更に内
空変位の測定の場合、測定が高所作業となり危険である
。(Intelligence Problem to be Solved by the Invention) However, the conventional measuring method requires input for measurement, takes a lot of time, and cannot grasp the behavior of the ground in real time. Furthermore, in the case of measurements using stationary horizontal inclinometers, installing a large number of inclinometers along the entire longitudinal direction of the tunnel will significantly increase costs and will not take up space for cable wiring from each inclinometer. Furthermore, in the case of measuring internal displacement, the measurement must be done at high places, which is dangerous.
本発明は前記従来技術の有する問題点に鑑みてｖｌ案さ
れたもので、その目的とする処は、施工中でもリアルタ
イムに計ｉ１ｔ！！ｌ（！が得られ、且つ切羽掘削によ
る地山の変化、変動を常時監視することができるＮＡＴ
Ｍ工法における掘削地山監視装置を提供する点にある。The present invention has been devised in view of the problems of the prior art, and its purpose is to provide total control in real time even during construction. ! NAT that can obtain l(!) and constantly monitor changes and fluctuations in the ground due to face excavation.
The object of the present invention is to provide an excavated ground monitoring device for the M method.
（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ＮＡＴＭ工法
における掘削地山監視装置は、切羽面に取付けた視準点
と、トンネル内に同視準点と対向して配設された光波距
離計を具えた切羽面押出し同変位計と、同変位計による
計測信号を入力し前記視準点の移動量を演算する制御用
コンピュータとからなる切羽面押出し変位計測装置と、
トンネル断面上方地盤内に配設された水平パイプと、同
パイプ内に移動自在に接続された複数の（頃斜計と、同
各（ＩｊＩ斜計の計測信号を入力し、地山の変位量を演
算するコンピュータとからなる切羽前方上部地盤の変位
測定装置とから構成されている。(Means for Solving the Problems) In order to achieve the above object, the excavated ground monitoring device in the NATM construction method according to the present invention has a sighting point attached to the face and a sighting point inside the tunnel facing the same sighting point. A face extrusion displacement measuring device comprising a face extrusion displacement meter equipped with a light wave distance meter arranged at and,
A horizontal pipe installed in the ground above the tunnel cross section, and a plurality of (circle inclination gauges) movably connected within the pipe, inputting measurement signals from each (IjI inclination gauge), and measuring the amount of displacement of the ground. It consists of a computer that calculates , and a displacement measuring device for the upper ground in front of the face.
（作用）
本発明は前記したように構成されているので、前記切羽
面押出し変位計測装置における光波距離計を具えた切羽
面押出し同変位計によって、切羽面に取付けられた視準
点で規準し、前記変位計に接続された制御用コンピュー
タによって、前記視準点の移動量を演算し、切羽面の移
動量を連続的に自動計測する。(Function) Since the present invention is configured as described above, the face extrusion displacement meter equipped with a light wave distance meter in the face extrusion displacement measuring device can be used for reference at a collimation point attached to the face surface. A control computer connected to the displacement meter calculates the amount of movement of the collimation point and automatically measures the amount of movement of the face surface continuously.
一方、前記切羽前方上部地盤の変位測定装置におけるト
ンネル断面上方地盤内に配設されたパイプ内に沿って、
移動自在に接続された複数の傾斜計を切羽の施工の進捗
に即応して施工区間内に移動させ、前記傾斜計に接続さ
れたコンピュータによって地山の変位量を演算し、掘削
に伴う切羽斜め前方の地山の挙動をリアルタイムに監視
するものである。On the other hand, along the inside of the pipe arranged in the ground above the tunnel cross section in the displacement measurement device of the upper ground in front of the face,
A plurality of movably connected inclinometers are moved within the construction zone in response to the progress of construction of the face, and a computer connected to the inclinometers calculates the amount of displacement of the ground, and the slope of the face due to excavation is calculated. This monitors the behavior of the ground in front in real time.
（実施例） 以下本発明を図示の実施例について説明する。(Example) The present invention will be described below with reference to the illustrated embodiments.
囚はトンネル、（Ｂｌは同トンネル人の切羽で、同切羽
面に視準点（コーナキューブ）（１）が取付けられ、切
羽（Ｂｌから５０ｍ以上離隔したトンネルＡ内において
、位１制御架台に光波距離計が載架された切羽面押出し
同変位計（２）が前記視準点と対向して配設され、更に
同変位計（２）に制御用コンピュータ（３）が接続され
、前記視準点（１）、切羽面押出し同変位計（２）並に
前記コンピュータ（３）によって切羽面押出し量計測装
置が構成されている。The prisoner is a tunnel, (Bl is the face of the tunnel person, a sighting point (corner cube) (1) is attached to the face of the tunnel, A face extrusion displacement meter (2) on which a light wave distance meter is mounted is disposed opposite to the sighting point, and a control computer (3) is connected to the displacement meter (2), The quasi point (1), the face extrusion displacement meter (2), and the computer (3) constitute a face extrusion amount measuring device.
Ｉ 中（４）はコントローラである。I (4) is a controller.
一方、トンネル断面上方地盤内には切羽前方上部地盤の
変位測定装置（０が設置されている。On the other hand, a displacement measuring device (0) for the upper ground in front of the tunnel face is installed in the ground above the tunnel cross section.
第２図は同装置（０の一実施例を示し、トンネル中心の
上方２〜３ｍの位置における水平ポーリング孔にアルミ
ニウム製の水平パイプ（５）が設置され、同パイプ（５
）の内周面に同パイプの長手方向に沿って延びる凹条溝
等によって構成されたガイドレールを案内として走行す
るように、ユニバーサルジヨイント（６）を介して連結
された複数の台車（７）に夫々（頃斜計（８）が取付け
られ、同各傾斜針（８）はコンピュータ（９）に接続さ
れている。Figure 2 shows an embodiment of the same device (0), in which an aluminum horizontal pipe (5) is installed in the horizontal polling hole at a position 2 to 3 m above the center of the tunnel.
) A plurality of bogies (7 ) are each equipped with an inclination meter (8), and each of the inclination hands (8) is connected to a computer (9).
図中（１０）は前記台車（７）に設けたガイドローラ、
（１１）はセレクタ、（１２）はケーブルジヨイント、
（Ｉ３）はコントローラである。In the figure (10) is a guide roller provided on the truck (7),
(11) is the selector, (12) is the cable joint,
(I3) is a controller.
而して前記切羽面押出し量計測装置における切羽面押出
し同変位計（２）によって切羽（ａ面に取付けられた視
準点（コーナキューブ）（１）を規準し、同視準点（１
）の移動量、即ち切羽面の移動量を前記変位計（２）に
接続された制御用コンピュータ（３）によって連続的に
演算計測する。Then, the collimation point (corner cube) (1) attached to the face (a side) is referenced by the face extrusion displacement meter (2) in the face extrusion amount measuring device, and the collimation point (1) is
), that is, the amount of movement of the face, is continuously calculated and measured by a control computer (3) connected to the displacement meter (2).
一方、前記切羽前方上部地盤の変位装置における水平パ
イプ（５）内に沿って複数の台車（７）を切羽（ａの施
工の進捗に伴って施工区間内に沿って移動せしめ、同各
台車（７）に配設された傾斜計（８）によって検出した
地山の変位検出信号をコンピュータ（９）に入力して地
山の変位量を演算し、掘削に伴う切羽斜め前方の挙動〔
垂直変位のトンネル縦断方向の９布〕をコンピュータに
より自動測定する。On the other hand, a plurality of carts (7) are moved along the horizontal pipe (5) in the upper ground displacement device in front of the face along the construction section as the construction of the face (a) progresses, and each of the carts ( The displacement detection signal of the ground detected by the inclinometer (8) installed in 7) is input to the computer (9) to calculate the amount of displacement of the ground, and the behavior of the oblique front of the face due to excavation is calculated.
The vertical displacement in the longitudinal direction of the tunnel] is automatically measured by a computer.
かくして図示の実施例によれば、トンネル掘削に伴う切
羽やその周辺地山の変化や変動をリアルタイムで計測、
監視することができ、きめ細かな掘削管理ができる。Thus, according to the illustrated embodiment, changes and fluctuations in the face and surrounding ground due to tunnel excavation can be measured in real time.
monitoring and detailed excavation management.
（発明の効果）
本発明に係るＮ６７Ｍ工法における掘削地山監視装置は
、トンネル内において切羽面に取付けた視準点に対向し
て設けられた光波距離計を具えた切羽面押出し量変位計
による計測信号を制御用コンピュータに入力し、前記視
準点の移動量を演算するように構成された切羽面押出し
変位計測装置と、トンネル断面上方地盤内に配設された
水平パイプ内に移動自在に複数の傾斜計を接続し、同各
傾斜計の計測信号をコンピュータに入力して地山の変位
量を演算するように構成された切羽前方上部地盤の変位
測定装置とを具えているので、トンネル掘削に伴う切羽
やその周辺地山の変化、変動を施工中においてもリアル
タイムに測定し、常時監視することができるので、きめ
細かな掘削管理ができる。(Effect of the invention) The excavated ground monitoring device in the N67M construction method according to the present invention uses a face extrusion amount displacement meter equipped with a light wave distance meter provided opposite to a sighting point attached to the face in the tunnel. A face extrusion displacement measuring device configured to input a measurement signal to a control computer and calculate the amount of movement of the sighting point, and a movable device installed in a horizontal pipe installed in the ground above the tunnel cross section. It is equipped with a displacement measuring device for the upper ground in front of the tunnel face, which is configured to connect multiple inclinometers and input the measurement signals of each inclinometer into a computer to calculate the amount of displacement of the ground. Changes and fluctuations in the face and surrounding ground caused by excavation can be measured in real time even during construction, and can be constantly monitored, allowing for detailed excavation management.
また前記測定作業は危険な高所作業を伴なうことなく、
完全に自動化され、高精度で地山の変位が捕捉され、更
に前記測定装置の計器が回収できるので経済的である。In addition, the measurement work does not involve dangerous work at heights.
It is completely automated, the displacement of the ground is captured with high precision, and the instruments of the measuring device can be recovered, making it economical.
更にまた前記切羽前方上部地盤の変位測定装置における
各傾斜計からの信号は、１本のケーブルで取出せるため
、配線スペースを取らず、計器の設置及び移動が容易に
行なわれる。Furthermore, since the signals from each inclinometer in the device for measuring the displacement of the upper ground in front of the face can be taken out with one cable, the installation and movement of the instruments can be easily performed without taking up wiring space.
第１図は本発明に係るＮ６７Ｍ工法における掘削地山監
視装置の一実施例を示す縦断側面図、第２図は切羽前方
上部地盤の変位測定装置の詳細図、第３図及び第４図は
夫々トンネル切羽周辺に発生する変形を示す縦断側面国
益に縦断正面図である。
囚・・・トンネル、 〔８・・・切羽、Ｃ）・・・切
羽前方上部地盤の変位測定装置、（１）・・視準点、
（２）・・・切羽面押出し量変位計、（３）・・・
制御用コンピュータ、
（５）・・水平パイプ、 （７）・・・台車、（８）・
（ｌｌ ６４計、 （９）・・・コンピュータ。
代理人 弁理士 岡 本 重 文
外１名Fig. 1 is a vertical sectional side view showing an embodiment of the excavated ground monitoring device in the N67M construction method according to the present invention, Fig. 2 is a detailed view of the displacement measuring device for the upper ground in front of the face, and Figs. 3 and 4 are They are a longitudinal side view and a longitudinal front view showing the deformation occurring around the tunnel face, respectively. Prisoner...Tunnel, [8...Face, C)...Displacement measurement device of the upper ground in front of the face, (1)...Sighting point,
(2)...Face extrusion amount displacement meter, (3)...
Control computer, (5)...horizontal pipe, (7)...truck, (8)...
(ll 64 total, (9)...computer. Agent: Patent attorney Shige Okamoto, 1 extra person
Claims (1)
向して配設された光波距離計を具えた切羽面押出し量変
位計と、同変位計による計測信号を入力し前記視準点の
移動量を演算する制御用コンピュータとからなる切羽面
押出し変位計測装置と、トンネル断面上方地盤内に配設
された水平パイプと、同パイプ内に移動自在に接続され
た複数の傾斜計と、同各傾斜計の計測信号を入力し、地
山の変位量を演算するコンピュータとからなる切羽前方
上部地盤の変位測定装置とから構成されたことを特徴と
するＮＡＴＭ工法における掘削地山監視装置。A collimation point attached to the face, a face extrusion displacement meter equipped with a light wave distance meter placed opposite to the collimation point in the tunnel, and a measurement signal from the displacement meter are inputted to the collimation point. A face extrusion displacement measurement device consisting of a control computer that calculates the amount of movement of a point, a horizontal pipe installed in the ground above the tunnel cross section, and multiple inclinometers movably connected within the pipe. , a device for measuring the displacement of the upper ground in front of the face, comprising a computer that inputs the measurement signals of the respective inclinometers and calculates the amount of displacement of the ground; .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2209136A JPH0493492A (en) | 1990-08-09 | 1990-08-09 | Excavated natural ground monitoring device in natm construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2209136A JPH0493492A (en) | 1990-08-09 | 1990-08-09 | Excavated natural ground monitoring device in natm construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0493492A true JPH0493492A (en) | 1992-03-26 |
Family
ID=16567893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2209136A Pending JPH0493492A (en) | 1990-08-09 | 1990-08-09 | Excavated natural ground monitoring device in natm construction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0493492A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008298433A (en) * | 2007-05-29 | 2008-12-11 | Enzan Kobo:Kk | Prediction method for tunnel final displacement |
| JP2012007408A (en) * | 2010-06-25 | 2012-01-12 | Taisei Corp | Method for predicting natural ground situation and method for drilling tunnel |
| JP2013053444A (en) * | 2011-09-02 | 2013-03-21 | Taisei Corp | Inclinometer installation method and inclination measurement device |
| JP2016008871A (en) * | 2014-06-24 | 2016-01-18 | 公益財団法人鉄道総合技術研究所 | Spray surface monitoring method, and spray surface monitoring system |
| CN109073377A (en) * | 2016-04-26 | 2018-12-21 | 兴仁Enc株式会社 | Utilize the behavior determination and maintenance method of multi-axial sensor |
| JP2020203819A (en) * | 2019-06-19 | 2020-12-24 | デンカ株式会社 | Mortar material for face plane spray, face plane monitoring system, and tunnel digging method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02110312A (en) * | 1988-10-20 | 1990-04-23 | Fujita Corp | Method and apparatus for measuring displacement of upper ground in front of tunnel facing |
| JPH02110304A (en) * | 1988-10-20 | 1990-04-23 | Fujita Corp | Apparatus for measuring displacement of tunnel cross-section |
-
1990
- 1990-08-09 JP JP2209136A patent/JPH0493492A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02110312A (en) * | 1988-10-20 | 1990-04-23 | Fujita Corp | Method and apparatus for measuring displacement of upper ground in front of tunnel facing |
| JPH02110304A (en) * | 1988-10-20 | 1990-04-23 | Fujita Corp | Apparatus for measuring displacement of tunnel cross-section |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008298433A (en) * | 2007-05-29 | 2008-12-11 | Enzan Kobo:Kk | Prediction method for tunnel final displacement |
| JP2012007408A (en) * | 2010-06-25 | 2012-01-12 | Taisei Corp | Method for predicting natural ground situation and method for drilling tunnel |
| JP2013053444A (en) * | 2011-09-02 | 2013-03-21 | Taisei Corp | Inclinometer installation method and inclination measurement device |
| JP2016008871A (en) * | 2014-06-24 | 2016-01-18 | 公益財団法人鉄道総合技術研究所 | Spray surface monitoring method, and spray surface monitoring system |
| CN109073377A (en) * | 2016-04-26 | 2018-12-21 | 兴仁Enc株式会社 | Utilize the behavior determination and maintenance method of multi-axial sensor |
| JP2019518208A (en) * | 2016-04-26 | 2019-06-27 | 株式会社 興仁技建Ｈｅｕｎｇ Ｉｎ Ｅｎｃ Ｃｏ．， Ｌｔｄ | Behavior measurement and maintenance method using multi-axis sensor |
| JP2020203819A (en) * | 2019-06-19 | 2020-12-24 | デンカ株式会社 | Mortar material for face plane spray, face plane monitoring system, and tunnel digging method |
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