JPH09165748A - Construction method of slope face stability pressure receiving structural body - Google Patents
Construction method of slope face stability pressure receiving structural bodyInfo
- Publication number
- JPH09165748A JPH09165748A JP34842195A JP34842195A JPH09165748A JP H09165748 A JPH09165748 A JP H09165748A JP 34842195 A JP34842195 A JP 34842195A JP 34842195 A JP34842195 A JP 34842195A JP H09165748 A JPH09165748 A JP H09165748A
- Authority
- JP
- Japan
- Prior art keywords
- pressure receiving
- receiving structure
- anchor
- main anchor
- slope face
- 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.)
- Granted
Links
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、地山等の法面に対
して実施される法面安定化のための施工方法に関する。
より詳しくは、コンクリートブロック等から構成される
受圧構造体の設置状態を離れた地点からも容易に監視し
得るように改善した法面安定用受圧構造体の施工方法に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction method for stabilizing a slope that is carried out on a slope such as a ground.
More specifically, the present invention relates to a method for constructing a pressure receiving structure for slope stabilization, which is improved so that the installation state of a pressure receiving structure composed of concrete blocks and the like can be easily monitored even from a distant point.
【０００２】[0002]
【従来の技術】この種の地山や土木工事によって形成さ
れる法面の安定化方法としては、予め直線状や十字形に
成形されたコンクリートブロックなどから構成される受
圧構造体と、その受圧構造体を地盤に対して締付け固定
するためのグラウンドアンカーなどからなる主アンカー
とを使用して法面の安定化を図る施工方法が従来から広
く知られている。ところで、この施工方法は、法面安定
化のための施工方法として種々の優れた点を有する一
方、１個あたりの重量が数トンにも達する受圧用のブロ
ックを１本あるいは複数本を１本に束ねて一体化した主
アンカーで支持する構造のため、その安全性は主アンカ
ーの設置状態に依存するところが大きく、仮にその設置
状態に欠陥が生じた場合には大事故を招来しかねない危
険がある。2. Description of the Related Art As a method of stabilizing the slope formed by this type of natural ground and civil engineering work, a pressure receiving structure composed of a concrete block previously formed in a straight or cross shape and its pressure receiving structure are used. BACKGROUND ART A construction method for stabilizing a slope by using a main anchor such as a ground anchor for fastening and fixing a structure to the ground has been widely known. By the way, this construction method has various advantages as a construction method for slope stabilization, while one or a plurality of pressure receiving blocks each weighing several tons. Since the structure is supported by the main anchor that is bundled together and integrated, its safety depends largely on the installation state of the main anchor, and if a defect occurs in the installation state, it could cause a serious accident. There is.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、以上のよう
な事情に鑑みてなされたもので、その目的とするところ
は、施工後に生じる法面安定用の受圧構造体の設置状態
に関する異常状態の発生を離れた地点からも容易に監視
し得るように改善した施工方法を提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to provide an abnormal state relating to the installation state of a pressure receiving structure for slope stabilization that occurs after construction. It is an object of the present invention to provide an improved construction method so that the occurrence of the occurrence can be easily monitored from a remote location.
【０００４】[0004]
【課題を解決するための手段】本発明は、法面安定用の
受圧構造体の略中央部を主アンカーを介して地盤に対し
て固定する法面安定化施工において、前記主アンカーに
加えて前記受圧構造体の重心から水平方向にずらした位
置に設置状態監視用の補助アンカーを配設し、主アンカ
ーの異常発生時に前記補助アンカーを支点として生じる
受圧構造体自体の傾斜により設置状態に関する異常の発
生を離れた地点からも監視し得るようにしたことを特徴
とする。According to the present invention, in addition to the main anchor, in the slope stabilization construction in which the substantially central portion of the pressure receiving structure for stabilizing the slope is fixed to the ground through the main anchor. An auxiliary anchor for installation condition monitoring is arranged at a position horizontally displaced from the center of gravity of the pressure receiving structure, and when the main anchor fails, the inclination of the pressure receiving structure itself which is caused by the auxiliary anchor as a fulcrum causes an abnormality in the installation condition. The feature is that the occurrence of can be monitored from a remote location.
【０００５】[0005]
【発明の実施の形態】本発明の実施においては、前記受
圧構造体の設置に際して、その略中央部に配設する主ア
ンカーに加えて、前記受圧構造体の重心から水平方向に
ずらした適宜の位置に主アンカーの設置状態監視用とし
て補助アンカーを配設する。この場合、前記受圧構造体
や主アンカーの具体的形状や材質などには限定されるこ
となく広く実施が可能である。なお、前記受圧構造体の
重量は主アンカーによって半永久的に支持することを基
本とし、前記補助アンカーは監視用として設置されるも
のであるから、受圧構造体の重量を仮に支持し得る能力
を有するものであれば足り、また正常時には受圧構造体
の重力が作用しないように設置してもよい。BEST MODE FOR CARRYING OUT THE INVENTION In the practice of the present invention, when the pressure receiving structure is installed, in addition to the main anchor disposed in the substantially central portion thereof, an appropriate pressure is horizontally offset from the center of gravity of the pressure receiving structure. An auxiliary anchor is installed at the position to monitor the installation state of the main anchor. In this case, the pressure receiving structure and the main anchor are not limited to specific shapes and materials, and can be widely implemented. Since the weight of the pressure receiving structure is basically supported semi-permanently by the main anchor, and the auxiliary anchor is installed for monitoring, it has the ability to temporarily support the weight of the pressure receiving structure. Anything is sufficient, and the pressure receiving structure may be installed so that gravity does not act under normal conditions.
【０００６】[0006]
【実施例】以下、図面を用いて本発明の実施例に関して
説明する。図１及び図２は本発明の一実施例を示したも
のである。図１は本発明を法面用の受圧構造体として十
字形のブロックを用いた場合に適用した実施例の施工後
の状態を示した縦断面図、図２はその受圧構造体をＡ方
向からみたＡ矢視図である。図中、１はコンクリートブ
ロック等からなる十字形の受圧構造体で、この受圧構造
体１を縦横方向に直接的に接続した状態あるいは隣接す
る受圧構造体１との間に縦枠部ないし横枠部を介在させ
て接続した状態に所要数並べて設置することにより格子
状の法枠を形成することができる。受圧構造体１の略中
央部には凹部２が形成されており、その凹部２の底部３
を支圧プレート４を介してグラウンドアンカーを構成す
るアンカーテンドンなどからなる主アンカー５によって
締付け固定することにより受圧構造体１を地山などの地
盤６に対して定着させるように構成されている。すなわ
ち、地盤６に形成した削孔７に主アンカー５を挿入しグ
ラウト材８を注入することにより先端側に位置する定着
部９を介して地盤６に対して定着し、その主アンカー５
を介して受圧構造体１を地盤６に対して定着させること
になる。図中、１０は主アンカー５の自由長部分を構成
するシース管、１１は主アンカー５の上端部に設置され
るくさびなどからなる固着具である。なお、主アンカー
５の頭部を防錆油などによりシールするように構成して
もよい。Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show an embodiment of the present invention. FIG. 1 is a longitudinal sectional view showing a state after construction of an embodiment in which the present invention is applied to a case where a cross-shaped block is used as a pressure receiving structure for slopes, and FIG. 2 shows the pressure receiving structure from the direction A. FIG. In the figure, reference numeral 1 is a cross-shaped pressure receiving structure made of concrete block or the like, and a state in which the pressure receiving structure 1 is directly connected in the vertical and horizontal directions or a vertical frame portion or a horizontal frame between adjacent pressure receiving structures 1. It is possible to form a lattice-shaped method frame by arranging and installing a required number of them in a state of being connected through the interposing parts. The pressure receiving structure 1 has a recessed portion 2 formed substantially at the center thereof, and the bottom portion 3 of the recessed portion 2 is formed.
The pressure receiving structure 1 is fixed to the ground 6 such as the ground by tightening and fixing the pressure receiving structure 1 through the pressure bearing plate 4 with a main anchor 5 such as an uncurtain don forming a ground anchor. That is, by inserting the main anchor 5 into the drilled hole 7 formed in the ground 6 and injecting the grout material 8, the main anchor 5 is fixed to the ground 6 via the fixing portion 9 located on the tip side, and the main anchor 5
The pressure receiving structure 1 is fixed to the ground 6 via the. In the figure, 10 is a sheath tube that constitutes the free length portion of the main anchor 5, and 11 is a fixture that is installed on the upper end of the main anchor 5 and that consists of a wedge or the like. The head of the main anchor 5 may be sealed with rust preventive oil or the like.
【０００７】次に本発明の特徴部分に関して説明する。
本発明は、図示のように、前記受圧構造体１の略中央部
を支持する前記主アンカー５に加えて、当該受圧構造体
１の十字形を構成する上方の縦部１２にその受圧構造体
１自体の重心から例えばＬａだけ水平方向にずらした位
置に設置状態監視用の補助アンカー１３を配設した点で
技術的特徴を有する。この補助アンカー１３は、ロック
ボルトなどからなり、受圧構造体１の重量を仮に支持し
得る能力を備えていれば足りる。なお、この補助アンカ
ー１３の設置の仕方は、凹部１４において支圧プレート
１５を介してナット１６等により締付け固定する。図
中、１７は地盤６に形成された削孔、１８は充填された
グラウト材である。Next, the characteristic part of the present invention will be described.
As shown in the drawings, the present invention provides, in addition to the main anchor 5 that supports the substantially central portion of the pressure receiving structure 1, the pressure receiving structure in the upper vertical portion 12 forming the cross shape of the pressure receiving structure 1. It has a technical feature in that the auxiliary anchor 13 for monitoring the installation state is arranged at a position displaced from the center of gravity of 1 itself by, for example, La in the horizontal direction. The auxiliary anchor 13 is composed of a lock bolt or the like, and it is sufficient if it has the ability to temporarily support the weight of the pressure receiving structure 1. The auxiliary anchor 13 is installed by tightening and fixing it in the recess 14 with the nut 16 or the like via the bearing plate 15. In the figure, 17 is a drilled hole formed in the ground 6, and 18 is a filled grout material.
【０００８】しかして、前記受圧構造体１の施工後、何
らかの原因により主アンカー５に切断や引抜けなどの支
障が生じ、主アンカー５自体によっては受圧構造体１の
重量を十分支持できない異常事態が発生した場合には、
受圧構造体１はその自重により、前記補助アンカー１３
を中心に回動して傾斜することになる。したがって、遠
く離れた地点からでもその受圧構造体１の傾斜状態を観
察すれば設置状態の異常を監視することができる。その
結果、大事に至る前に対策を打つことが可能となり、事
故を未然に回避することができることになる。However, after the pressure-receiving structure 1 is constructed, the main anchor 5 is hindered by cutting or pulling out due to some cause, and the weight of the pressure-receiving structure 1 cannot be sufficiently supported by the main anchor 5 itself. When occurs,
Due to the weight of the pressure receiving structure 1, the auxiliary anchor 13
It will rotate around and tilt. Therefore, by observing the inclined state of the pressure receiving structure 1 even from a distant point, it is possible to monitor the abnormality of the installation state. As a result, measures can be taken before it becomes important and accidents can be avoided.
【０００９】図３は本発明の他の実施例に関する施工後
の状態を示した施工状態図である。図示のように、前記
実施例と同じ構成部分には同じ符号を付して説明する
と、本実施例においては、補助アンカー１９を十字形の
受圧構造体１を構成する横部２０に図示のように受圧構
造体１の重心から例えばＬｂだけ水平方向にずらした位
置に１カ所配設した点で特徴を有する。本実施例の場合
には、以上のように補助アンカー１９を受圧構造体１の
横部２０に設けたので、その補助アンカー１９と受圧構
造体１との水平方向のずれＬｂの選定の自由度が大き
く、補助アンカー１９を支点とする受圧構造体１の自重
による回転モーメントを大きくとることも可能であるこ
とから異常発生時における受圧構造体１の傾斜量を大き
く設定することもできるので、より良好な監視が可能と
なる。FIG. 3 is a construction state diagram showing a state after construction according to another embodiment of the present invention. As shown in the figure, the same components as those of the above-described embodiment are designated by the same reference numerals. In the present embodiment, the auxiliary anchor 19 is shown in the lateral portion 20 of the cross-shaped pressure receiving structure 1. In addition, it is characterized in that it is disposed at one position at a position horizontally displaced from the center of gravity of the pressure receiving structure 1 by, for example, Lb. In the case of the present embodiment, since the auxiliary anchor 19 is provided on the lateral portion 20 of the pressure receiving structure 1 as described above, the degree of freedom in selecting the horizontal deviation Lb between the auxiliary anchor 19 and the pressure receiving structure 1. Is large and the rotational moment due to the weight of the pressure-receiving structure 1 with the auxiliary anchor 19 as a fulcrum can be large, so that the inclination amount of the pressure-receiving structure 1 at the time of occurrence of an abnormality can be set to be large. Good monitoring is possible.
【００１０】なお、以上の実施例の説明においては十字
形からなる受圧構造体を例に説明したが、本発明はこれ
に限定されるものではなく、前述のように、要は受圧構
造体の略中央部を支持する主アンカーとは別にその受圧
構造体の具体的形状に合わせて重心から水平方向にずら
した任意の１カ所に補助アンカーを設ければ、主アンカ
ーの異常発生時には前記受圧構造体がその補助アンカー
を支点として自重により自ら傾斜するので前記監視機能
を奏することが可能である。In the above description of the embodiments, the cross-shaped pressure receiving structure has been described as an example. However, the present invention is not limited to this. In addition to the main anchor that supports the substantially central portion, if an auxiliary anchor is provided at any one position that is horizontally displaced from the center of gravity according to the specific shape of the pressure receiving structure, the pressure receiving structure can be used when an abnormality occurs in the main anchor. Since the body tilts by its own weight with the auxiliary anchor as a fulcrum, the body can perform the monitoring function.
【００１１】[0011]
【発明の効果】本発明によれば、以上のように何らかの
原因により主アンカーに切断や引抜けなどの支障が生じ
た場合には、受圧構造体自体が補助アンカーを中心に回
動して傾斜するので、遠く離れた地点からでも設置状態
の異常を容易に監視することができる。その結果、大事
に至る前に対策を打つことが可能となり、事故を未然に
回避することができる。According to the present invention, when the main anchor is hindered by cutting or pulling out due to any reason as described above, the pressure receiving structure itself rotates about the auxiliary anchor and tilts. Therefore, it is possible to easily monitor the installation state abnormality even from a distant point. As a result, measures can be taken before it becomes important and accidents can be avoided.
【図１】 本発明の実施例の施工後の状態を示した縦断
面図である。FIG. 1 is a longitudinal sectional view showing a state after construction of an embodiment of the present invention.
【図２】 同実施例をＡ方向から見たＡ矢視図である。FIG. 2 is a view as seen from an arrow A of the same embodiment as seen from a direction A.
【図３】 他の実施例の施工後の状態を示した施工状態
図である。FIG. 3 is a construction state diagram showing a state after construction of another embodiment.
１…受圧構造体、２…凹部、３…凹部の底部、４…支圧
プレート、５…主アンカー、６…地盤、７…削孔、８…
グラウト材、９…定着部、１０…シース管、１１…固着
具、１２…縦部、１３…補助アンカー、１４…凹部、１
５…支圧プレート、１６…ナット、１７…削孔、１８…
グラウト材、１９…補助アンカー、２０…横部DESCRIPTION OF SYMBOLS 1 ... Pressure receiving structure, 2 ... Recess, 3 ... Bottom of recess, 4 ... Pressure support plate, 5 ... Main anchor, 6 ... Ground, 7 ... Drilling hole, 8 ...
Grout material, 9 ... Fixing part, 10 ... Sheath tube, 11 ... Fixing device, 12 ... Vertical part, 13 ... Auxiliary anchor, 14 ... Recessed part, 1
5 ... Bearing plate, 16 ... Nut, 17 ... Drilling hole, 18 ...
Grout material, 19 ... Auxiliary anchor, 20 ... Horizontal part
───────────────────────────────────────────────────── フロントページの続き (72)発明者 森田 孝 千葉県市川市真間５−11−８−202 (72)発明者 関原 和明 東京都豊島区要町３−７−８−202 (72)発明者 帆足 紀一 千葉県野田市清水802−23 (72)発明者 大柴 武人 千葉県東金市求名254−５ (72)発明者 横山 茂 埼玉県八潮市大字鶴ヶ根1405 (72)発明者 神戸 弘志 東京都江東区常盤２−13−18 (72)発明者 北河原 忠 千葉県野田市中の台1042 (72)発明者 鶴見 秀樹 埼玉県越谷市袋山1172 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Morita 5-11-8-202 Mama, Ichikawa-shi, Chiba (72) Inventor Kazuaki Sekihara 3-7-8-202 Kanamemachi, Toshima-ku, Tokyo (72) Inventor Kiichi 8024 Shimizu, Noda City, Chiba Prefecture (72) Inventor Takehito Oshiba Togane City, Chiba Prefecture Job title 254-5 (72) Inventor Shigeru Yokoyama 1405 Tsurugane, Yashio City, Saitama Prefecture Inventor Hiroshi Kobe 2-13-18 Tokiwa, Koto-ku, Tokyo (72) Inventor Tadashi Kitagawara 1042 Nakanodai, Noda City, Chiba Prefecture (72) Hideki Tsurumi 1172 Fukuroyama, Koshigaya City, Saitama Prefecture
Claims (1)
法面安定用の受圧構造体の略中央部を主アンカーを介し
て地盤に対して固定する法面安定化施工において、前記
主アンカーに加えて前記受圧構造体の重心から水平方向
にずらした位置に設置状態監視用の補助アンカーを配設
することを特徴とする法面安定用受圧構造体の施工方
法。1. In a slope stabilization construction in which a substantially central portion of a pressure receiving structure for stabilizing a slope composed of a concrete block or the like is fixed to the ground via a main anchor, in addition to the main anchor, A method for constructing a pressure-receiving structure for stabilizing a slope, characterized in that an auxiliary anchor for installation condition monitoring is arranged at a position horizontally displaced from the center of gravity of the pressure-receiving structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34842195A JP3643160B2 (en) | 1995-12-18 | 1995-12-18 | Installation condition monitoring method of pressure receiving structure for slope stabilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34842195A JP3643160B2 (en) | 1995-12-18 | 1995-12-18 | Installation condition monitoring method of pressure receiving structure for slope stabilization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09165748A true JPH09165748A (en) | 1997-06-24 |
| JP3643160B2 JP3643160B2 (en) | 2005-04-27 |
Family
ID=18396902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34842195A Expired - Fee Related JP3643160B2 (en) | 1995-12-18 | 1995-12-18 | Installation condition monitoring method of pressure receiving structure for slope stabilization |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3643160B2 (en) |
-
1995
- 1995-12-18 JP JP34842195A patent/JP3643160B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3643160B2 (en) | 2005-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4699547A (en) | Mine truss structures and method | |
| US4911582A (en) | Concrete replacement wall and method of constructing the wall | |
| AU594320B2 (en) | Load-indicating device | |
| US4679967A (en) | Truss bracket | |
| KR101967278B1 (en) | Bridge stairway fixing unit and method for constructing bridge stairway using this same | |
| JPH09165748A (en) | Construction method of slope face stability pressure receiving structural body | |
| CN208668290U (en) | Punching stick anchor ear device | |
| CN208668289U (en) | Punching stick anchor ear support device | |
| AU761329B2 (en) | Screens | |
| JP2516293B2 (en) | Elevator platform sill device | |
| JPS63171924A (en) | Fortifying work for earthquake-resistant pile base structure | |
| JP2000027484A (en) | Structure for mounting vibration damping device on vibration damping wall | |
| JPH09158199A (en) | Base anchor of steel pipe column and execution method thereof | |
| AU722997B2 (en) | Yielding adapter for rock bolts | |
| CN215927434U (en) | Modular stable structure anchor rope truss | |
| JPH11315605A (en) | Connecting structure between panels for curtain wall | |
| JPH09273158A (en) | Pressure receiving plate for anchor method | |
| AU717527B2 (en) | A support assembly | |
| JPH09100536A (en) | Foundation structure for building structure | |
| KR200287224Y1 (en) | Temporary surface traffic of road for underground railway working using spring locking device | |
| JPH09165749A (en) | Construction method of slope face stability receiving pressure structural body | |
| JPH06156922A (en) | Scaffold for installation of elevator | |
| JP4368517B2 (en) | Seismic isolation structure and seismic isolation device for underground structures | |
| JP4419242B2 (en) | Column base hardware | |
| EP0204927B1 (en) | Yield tube rib bolt assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Effective date: 20041015 Free format text: JAPANESE INTERMEDIATE CODE: A971007 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20041026 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20041221 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Effective date: 20050125 Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Effective date: 20050127 Free format text: JAPANESE INTERMEDIATE CODE: A61 |
|
| R150 | Certificate of patent (=grant) or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 4 Free format text: PAYMENT UNTIL: 20090204 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 4 Free format text: PAYMENT UNTIL: 20090204 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 5 Free format text: PAYMENT UNTIL: 20100204 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100204 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110204 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110204 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 7 Free format text: PAYMENT UNTIL: 20120204 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130204 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130204 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140204 Year of fee payment: 9 |
|
| LAPS | Cancellation because of no payment of annual fees |