JPH01250528A - Repairing work for cement mortar-sprayed slope - Google Patents
Repairing work for cement mortar-sprayed slopeInfo
- Publication number
- JPH01250528A JPH01250528A JP28967988A JP28967988A JPH01250528A JP H01250528 A JPH01250528 A JP H01250528A JP 28967988 A JP28967988 A JP 28967988A JP 28967988 A JP28967988 A JP 28967988A JP H01250528 A JPH01250528 A JP H01250528A
- Authority
- JP
- Japan
- Prior art keywords
- mortar
- slope
- cut
- coating layer
- layer
- 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
- 239000004568 cement Substances 0.000 title 1
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000010276 construction Methods 0.000 abstract description 10
- 239000011083 cement mortar Substances 0.000 abstract 2
- 239000011247 coating layer Substances 0.000 description 23
- 239000010410 layer Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、モルタル吹付は法面を解体し、改修する工法
に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for dismantling and repairing slopes by mortar spraying.
（従来の技術）
道路の切開き等における急傾斜な法面の保護に対しては
、モルタル吹付けによる法面保護工が多〈実施されてき
ている。これら既設のモルタル吹付けの法面では、風化
及び湧水等によって吹付けたモルタル被覆層の破壊がお
こり、その改修工事を実施しなければならない段階にき
ているものが多い。このような法面に対しては、吹付け
られたモルタル被覆層を解体、除去して、新たにモルタ
ルの吹付けを行なうか、植生緑化工法を施す必要がある
。(Prior Art) Slope protection works using mortar spraying have been frequently implemented to protect steep slopes such as road cuts. In many of these existing slopes where mortar has been sprayed, the sprayed mortar covering layer has been destroyed by weathering, spring water, etc., and repair work must be carried out. For such slopes, it is necessary to dismantle and remove the sprayed mortar coating layer and apply new mortar or apply a vegetation greening method.
法面のモルタル被覆層を取除いて補修するには、従来、
打撃等による大型の機械を用いる一般的な解体工法によ
っている。Conventionally, to remove and repair the mortar coating layer on the slope,
A general demolition method using large machines such as hammering was used.
（発明が解決しようとする問題点）
しかし、このような従来工法では、大型機械の設置等工
事占有面積を広く要するばかりでなく、解体の最中にモ
ルタルの破片等が飛散して危険が多く、そのため、工事
に際しては交通を規制したり遮断しなければならないと
いった問題をかかえており、その解決策が望まれていた
。(Problems to be solved by the invention) However, such conventional construction methods not only require large construction areas such as the installation of large machines, but also pose many dangers such as mortar fragments flying around during demolition. Therefore, there is a problem that traffic must be restricted or blocked during construction, and a solution to this problem has been desired.
本発明は、モルタル吹付は法面の取除き、補修における
前述のような従来工法による欠点を解決し、大型機械を
導入せず、しかも解体中において破片等が飛散すること
なくモルタル被覆層を解体、除去できるようにするとと
もに、モルタル被覆居除去後の法面の修復を行なおうと
するものである。The present invention solves the drawbacks of the conventional method of mortar spraying in slope removal and repair, and removes the mortar coating layer without introducing large machinery and without scattering debris during demolition. The aim is to make it possible to remove the mortar coating and to repair the slope after the mortar coating has been removed.
（問題点を解決するための手段）
次に、本発明の構成について、実施の態様を示した図面
を参照して説明すると、本発明は、法面に被着されてい
るモルタル被覆層２の補修を要する部分に、高圧水を噴
射して、該部分のモルタル層２或は同モルタル層２とそ
の下の法面地盤を切削して除去し、その除去した部分に
新たな、９４脩、ｆ肛せ４を補填することを特徴とする
ものである。(Means for Solving the Problems) Next, the configuration of the present invention will be explained with reference to the drawings showing embodiments. High-pressure water is injected into the area that requires repair to cut and remove the mortar layer 2 or the mortar layer 2 and the slope ground beneath it, and a new 94-shu, This is characterized by compensating for f-hole 4.
（実施例）
以下、本発明工法の実施例について図面を参照して説明
する。(Example) Hereinafter, an example of the construction method of the present invention will be described with reference to the drawings.
本発明工法は、モルタルを吹付けて被覆した法面を対象
として行なわれ、モルタル被覆屑の補修を要する部分を
解体除去し、その後に緑化のための植生基礎工を施すこ
とが特徴となっている。The construction method of the present invention is carried out on slopes covered with sprayed mortar, and is characterized by dismantling and removing the mortar covering debris that requires repair, and then applying vegetation foundation work for greening. There is.
法面の保護として被着しているモルタル被着層で補修を
要するｉＩＥ分は、剥離やクラック等が生じた損傷個所
或はその個所を含む周辺部分であるが、補修にあたって
は、まず、損傷個所或はその周辺部分を分断し除去する
必要がある。The iIE portion of the mortar adhesion layer that is applied to protect the slope surface that requires repair is the damaged area where peeling or cracking has occurred, or the surrounding area including that area. It is necessary to divide and remove the area or the surrounding area.
本発明では、この分断作業に、高圧水によるジエン）・
ウォーターを用いることが大きな特徴である。すなわら
、モルタル被覆層の分断すべき個所に高圧水噴射ノズル
を近接させて高圧水を偵出させれば、モルタル被覆層に
はその噴射力によってノズル径に応じた広さの切込みが
容易に形成される。そして噴射ノズルを移動さけて行け
ばその切込みは延長して行き、モルタル被覆層は切削さ
れることになる。In the present invention, this separation work is performed using high-pressure water.
The main feature is that water is used. In other words, if a high-pressure water jet nozzle is brought close to the location where the mortar coating layer is to be separated and high-pressure water is ejected, the jetting force can easily make a cut in the mortar coating layer with a width corresponding to the nozzle diameter. is formed. Then, as the injection nozzle is moved away, the cut becomes longer and the mortar coating layer is cut away.
除去するモルタル被覆層の部分が小さい場合は、噴射ノ
ズルを殆んど移動することなくモルタル層を切削し、分
断して除去することができる。すなわち、第１図に示す
ように、法面１上吹付けにより形成されたモルタル被覆
層２に対して、切削孔３．３を形成することにより損傷
部分をモルタル被覆Ｈ２から分断、除去する。If the portion of the mortar coating layer to be removed is small, the mortar layer can be cut, divided, and removed without moving the injection nozzle. That is, as shown in FIG. 1, cut holes 3.3 are formed in the mortar coating layer 2 formed by spraying on the slope 1, thereby cutting and removing the damaged portion from the mortar coating H2.
そして、それら切削孔３内には新たな誦＃Ｋ ４４を補
填Ｖろのである。また、切削孔３下の法面地盤１にも補
修を要する部分があるときは、さらに噴射ノズルよりの
高圧水の噴射で、法面地盤１にも所要深さの補修孔（第
４図参照）を削成し、その孔５内に％；Ｐ／Ｉｒｆ／１
１４を充填してｐＨｉ修を行なうのである。また、この
場合、第３図に示すように、孔５内に、を桶＃ガに代え
て植生材料６を充填する等の植生工を施すこともできる
。Then, a new recitation #K 44 is inserted into the cut holes 3. In addition, if there is a part of the slope ground 1 below the cut hole 3 that requires repair, the injection nozzle can further spray high-pressure water to repair the slope ground 1 to the required depth (see Figure 4). ) and %;P/Irf/1 in the hole 5.
14 to carry out pHi correction. In this case, as shown in FIG. 3, it is also possible to carry out vegetation work, such as filling the hole 5 with vegetation material 6 instead of using a bucket.
補修する面積が大きく、除去するモルタル被覆層の部分
が広い場合は、第２図に示したように、法面ｌ上に吹付
けにより形成されたモルタル被覆層２に対して横方向及
び縦方向に切込溝７．７・・・・・・を削成する。それ
Ｉこよってモルタル被覆層２は多数の細分化されたブロ
ック８．８・・・・・・に分断される。なお、１ｉ１１
記切込溝７．７は・斜め格子状その他適宜な形に削成す
ることができる。そして、ブロック８．８の大きさは、
ローブ等による吊上げ、吊降し等軽易な運搬の可能な程
度とするのがよい。If the area to be repaired is large and the portion of the mortar coating layer to be removed is wide, as shown in Figure 2, Cut grooves 7.7. As a result, the mortar coating layer 2 is divided into a large number of subdivided blocks 8.8. In addition, 1i11
The cut grooves 7.7 can be cut into a diagonal lattice shape or other suitable shape. And the size of block 8.8 is
It is preferable to allow for easy transportation by lifting or lowering using a robe or the like.
切込’ｒＩ′４７によりモルタル被覆層２が小さなブロ
ック８に分断されたなら、次に、分断された各ブロック
８を法面より剥離して搬出する。各ブロック８は切込溝
７に工具を差し込んでこじれば容易に剥離される。剥離
したブロック８は法面上方からのローブで結着し、法面
の上方或は法面下に吊上げ、吊降し、あとは適宜な手段
によって搬出するのである。この場合、ブロック８の剥
離、搬出は、法面の上部より順次Ｆ部に向って行なうの
がよい。Once the mortar coating layer 2 has been divided into small blocks 8 by the cuts 'rI' 47, each divided block 8 is then peeled off from the slope and carried out. Each block 8 can be easily peeled off by inserting a tool into the cut groove 7 and prying it. The separated blocks 8 are tied together with lobes from above the slope, lifted above or below the slope, suspended, and then carried out by appropriate means. In this case, it is preferable to peel off and carry out the blocks 8 sequentially from the top of the slope toward the F section.
補修部分のモルタル被覆層を除去した後は、その部分の
法面１上に新たなＶ ＃ 珍、ｖｒ ４を吹付けて補填
し、補修が終えることになる。また、除去したモルタル
被覆層の下の法面地盤１にも補修を要する部分がある場
合は、その部分の地盤を噴射ノズルよりの高圧水の噴射
で除去し、モルタルを補填して補修を行なうのである。After removing the mortar coating layer of the repaired area, a new V # Chin, Vr 4 is sprayed onto the slope 1 of the repaired area to compensate, and the repair is completed. In addition, if there is a part of the slope ground 1 under the removed mortar coating layer that requires repair, that part of the ground is removed by jetting high-pressure water from an injection nozzle and repaired by replenishing mortar. It is.
切削孔３や切込溝７の削成に要する装置類としては、高
圧水を送るための動力ポンプを設置するだけでよく、こ
れにホースを介して接続した噴射ノズルを人が把持して
操作する。一般に、モルタル吹付けの法面はかなり傾斜
が強いので、法面の、Ｌ方から垂したロープで人体を確
保しながら行なうのが安全かつ能率的である。The only equipment required to cut the cut holes 3 and cut grooves 7 is to install a power pump to send high-pressure water, and a person can grasp and operate the injection nozzle connected to this via a hose. do. Generally, the slope on which mortar is sprayed is quite steep, so it is safe and efficient to use a rope hanging from the L side of the slope to secure the human body.
（発明の効果）
以上説明したように、本発明の工法は、法面に被着され
ているモルタル被覆層の補修を要する部分をジェットウ
ォーターにより除去し、その除去した部分の法面に新た
にモルタル被覆層を形成するようにしたので、モルタル
を吹付けた法面の補修を行うにあたって、損傷等により
補修を要する部分のモルタル被覆層の取除きが、従来の
ような大型機械を使用したり、大規模な足場組み等を仮
設するようなことなく、高圧水を噴射するに必要な装置
機材だけでモルタル層の切削工事を行なうことができる
とともに、モルタル被覆層の解体作業はジェットウォー
ターの噴射により安全に能率よく行なうことができ、工
事費が大巾に軽減される。また、モルタル被覆層は小さ
なブロックに分断し、各個に搬出するようにしたので、
その作業は容易であるばかりでなく、従来工法における
ような、モルタルの破片等が飛散するという危険がなく
、工事が安全に実施でき、工事による交通遮断の短間も
解消されることになる。さらに、モルタル被覆層を除去
した法面地盤の補修に対しても、ジェットウォーターの
噴射により、損傷部分等の除去が高能率にでき、新たな
覧顛＃ガの補填によって、モルタル被覆層及び法面地盤
の更生、修復が極めて容易にできる等、多くの優れた効
果を奏するものである。(Effects of the Invention) As explained above, the construction method of the present invention uses jet water to remove the portion of the mortar coating layer that needs to be repaired on the slope surface, and then installs a new layer on the slope surface in the removed portion. Since a mortar coating layer is formed, when repairing a slope that has been sprayed with mortar, it is no longer necessary to remove the mortar coating layer from areas that require repair due to damage, etc., instead of using a large machine like in the past. , it is possible to cut the mortar layer using only the necessary equipment and equipment to spray high-pressure water without having to temporarily construct large-scale scaffolding, etc., and the dismantling work of the mortar coating layer can be done by spraying jet water. The process can be carried out safely and efficiently, and construction costs can be greatly reduced. In addition, the mortar coating layer was divided into small blocks and transported individually.
Not only is the work easy, but there is no danger of mortar fragments flying around, which is the case with conventional construction methods, so the work can be carried out safely, and short periods of traffic closures due to construction work can be eliminated. Furthermore, when repairing sloped ground from which the mortar coating layer has been removed, jet water can be used to remove damaged parts with high efficiency, and by replenishing new areas, the mortar coating layer can be repaired. It has many excellent effects, such as the ability to rehabilitate and repair surface ground extremely easily.
図面は本発明工法の実施の態様を示したもので、第１図
はモルタル被覆層に切込孔を削成したところを示す側断
面図、第２図はモルタル被覆層に縦横に切込溝を削成し
たところを示す平面図、第３図は法面に植生工を施した
ところを示す側断面図、！４図は法面に切込孔を施した
状態を示す側断面図である。
１・・・法面 ２・・・モルタル被覆層３・・・切込
孔 ４・・・４ｎすグ
５・・・補修孔 ７・・・切込溝 ８・・・ブロッ
ク第１図The drawings show an embodiment of the method of the present invention. Figure 1 is a side cross-sectional view showing cut holes cut into the mortar coating layer, and Figure 2 shows grooves cut vertically and horizontally in the mortar coating layer. Figure 3 is a side sectional view showing the area where vegetation has been applied to the slope. FIG. 4 is a side sectional view showing a state in which cut holes have been made in the slope. 1... Slope 2... Mortar coating layer 3... Cut hole 4... 4n groove 5... Repair hole 7... Cut groove 8... Block Fig. 1
Claims (1)
分に、高圧水を噴射して、該部分のモルタル層或は同モ
ルタル層とその下の法面地盤を切削して除去し、その除
去した部分に新たな補修材を補填することを特徴とする
、モルタル吹付け法面の改修工法。High-pressure water is sprayed onto the part of the mortar covering layer on the slope that requires repair, and the mortar layer in that part, or the mortar layer and the slope ground beneath it, is cut and removed. A method for repairing mortar sprayed slopes, which is characterized by filling the removed parts with new repair material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28967988A JPH01250528A (en) | 1988-11-16 | 1988-11-16 | Repairing work for cement mortar-sprayed slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28967988A JPH01250528A (en) | 1988-11-16 | 1988-11-16 | Repairing work for cement mortar-sprayed slope |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22752184A Division JPS61106826A (en) | 1984-10-29 | 1984-10-29 | Method of improving mortar-sprayed slope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01250528A true JPH01250528A (en) | 1989-10-05 |
Family
ID=17746342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28967988A Pending JPH01250528A (en) | 1988-11-16 | 1988-11-16 | Repairing work for cement mortar-sprayed slope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01250528A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04330116A (en) * | 1991-05-01 | 1992-11-18 | Furii Kogyo Kk | Method for repairing old slope protector |
| JP2009024440A (en) * | 2007-07-23 | 2009-02-05 | Toko Corp | Construction method for regenerating decrepit mortar-sprayed slope, reinforced structure, and construction method for stabilizing slope |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58189427A (en) * | 1982-04-16 | 1983-11-05 | Rasa Kensetsu Kk | Repairing work of protective wall layer covering mountain surface |
| JPS59112858A (en) * | 1982-12-06 | 1984-06-29 | ドラボ・コ−ポレ−シヨン | Method and device for injecting liquid |
-
1988
- 1988-11-16 JP JP28967988A patent/JPH01250528A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58189427A (en) * | 1982-04-16 | 1983-11-05 | Rasa Kensetsu Kk | Repairing work of protective wall layer covering mountain surface |
| JPS59112858A (en) * | 1982-12-06 | 1984-06-29 | ドラボ・コ−ポレ−シヨン | Method and device for injecting liquid |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04330116A (en) * | 1991-05-01 | 1992-11-18 | Furii Kogyo Kk | Method for repairing old slope protector |
| JP2009024440A (en) * | 2007-07-23 | 2009-02-05 | Toko Corp | Construction method for regenerating decrepit mortar-sprayed slope, reinforced structure, and construction method for stabilizing slope |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1077942C (en) | Pile head treating tool for cast-in-place pile, pile head treating method, and cast-in-place piling method | |
| CN101429816A (en) | Historical building clean water red brick wall renovation technique | |
| JP4777140B2 (en) | How to remove liner material from tubular structures | |
| WO2021008795A1 (en) | Method for the disassembly of tower of a wind power plant | |
| JPH01250528A (en) | Repairing work for cement mortar-sprayed slope | |
| CN113668414A (en) | Bridge deck concrete pavement layer dismantling construction method | |
| CN111101516B (en) | Pile head breaking device and construction method thereof | |
| JPH0222170B2 (en) | ||
| KR100806849B1 (en) | Repair method for pavement on bridge | |
| JP2935099B2 (en) | Open caisson construction method | |
| JPH09268555A (en) | Pile drawing method and device thereof | |
| CN206769919U (en) | Suitable for tunnel benching tunnelling method construction middle arch rack gunite concrete dividing plate | |
| JP4034639B2 (en) | Delineation removal method for lining layer and demolition removal apparatus used therefor | |
| JPH03151467A (en) | Method and device for lining removal from building | |
| JPS62258020A (en) | Repairing and maintenance of mortar-sprayed slope | |
| CN215167926U (en) | Tool for preventing scaffold eye from being left on secondary structure masonry | |
| CN108179887A (en) | A kind of method for dismounting of historical building ground clinker tile | |
| CN108277836A (en) | Canal formula cuts the fracture chain saw Refloatation method of cement soil continuous wall cutting equipment | |
| JP6876780B1 (en) | Asbestos-containing wall removal method and asbestos-containing wall removal system | |
| JP3718061B2 (en) | Road surface removal method | |
| JP3434007B2 (en) | Diaphragm method and equipment used for it | |
| JPH0610376B2 (en) | Manhole cover frame removal method and equipment | |
| JP2683356B2 (en) | Repair method of intermediate removal and insertion of kiln | |
| JPH02311298A (en) | Breaking of concrete structure | |
| JPS63308113A (en) | Chipping method of pile head of sheet pile in cast-in-place concrete pile |