JPH045313A - Method and device for reinforcing ground - Google Patents
Method and device for reinforcing groundInfo
- Publication number
- JPH045313A JPH045313A JP10451890A JP10451890A JPH045313A JP H045313 A JPH045313 A JP H045313A JP 10451890 A JP10451890 A JP 10451890A JP 10451890 A JP10451890 A JP 10451890A JP H045313 A JPH045313 A JP H045313A
- Authority
- JP
- Japan
- Prior art keywords
- ground
- pipe
- reinforcing material
- tip
- ground reinforcing
- 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
- 230000003014 reinforcing effect Effects 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 10
- 239000012779 reinforcing material Substances 0.000 claims abstract description 49
- 239000000701 coagulant Substances 0.000 claims abstract description 16
- 238000002347 injection Methods 0.000 claims abstract description 7
- 239000007924 injection Substances 0.000 claims abstract description 7
- 230000002787 reinforcement Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
- 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、地盤に削孔して、ワイヤー等の補強材を挿入
して凝固剤で固着することにより補強する地盤補強法お
よび地盤補強装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a ground reinforcement method and ground reinforcement device for reinforcing the ground by drilling a hole in the ground, inserting a reinforcing material such as a wire, and fixing it with a coagulant. Regarding.
従来、地盤に削孔して、補強材を挿入して凝固剤で固着
することにより補強する地盤補強法は第４図（ａ）（ｂ
）に示されるように、地盤ｌに細長い孔部２を図示され
ない掘削機を用いて掘削し、この孔部２に鋼棒、ワイヤ
ー、セラミック等から成る細長い地盤補強材３を挿入し
、この孔部２にモルタル等から成る凝固剤４を注入して
地盤１と地盤補強材３を固着して地盤１を補強していた
。Conventionally, the ground reinforcement method involves drilling a hole in the ground, inserting reinforcing material, and fixing it with a coagulant, as shown in Figures 4 (a) and (b).
), a long and narrow hole 2 is excavated in the ground l using an excavator (not shown), and a long and thin ground reinforcement material 3 made of steel rod, wire, ceramic, etc. is inserted into this hole 2, and the hole is The ground 1 was reinforced by injecting a coagulating agent 4 made of mortar or the like into the part 2 to fix the ground 1 and the ground reinforcing material 3.
［発明が解決しようとする課題］
しかし、上述の従来例は、ワイヤー等から成る細長い地
盤補強材３がフレキシブルで長い場合には孔部２への挿
入が困難であるという問題点があった。[Problems to be Solved by the Invention] However, the above-mentioned conventional example has a problem in that when the elongated ground reinforcing material 3 made of wire or the like is flexible and long, it is difficult to insert it into the hole 2.
そこで、本発明は、地盤補強材がフレキシブルで長い場
合であっても、地盤補強材の地盤への挿入が容易な地盤
補強法および地盤補強装置を提供することを目的とする
。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a ground reinforcing method and a ground reinforcing device that allow easy insertion of a ground reinforcing material into the ground even when the ground reinforcing material is flexible and long.
〔課題を解決するための手段］
本発明方法は、該地盤補強材の先端部をほぼ錐体状に形
成し、該地盤補強材をパイプ内に挿入し、該パイプを外
力により押圧することにより、該地盤補強材の先端部を
該パイプの先端部で押圧して、該地盤補強材の先端部を
該地盤に圧入し、該凝固剤を該圧入により削孔された該
地盤の孔部に注入して、該地盤を補強し、該地盤補強材
を該孔部に載置したまま、該パイプを該外力により該孔
部から引き抜くことを特徴とする地盤補強法である。[Means for Solving the Problems] The method of the present invention includes forming the tip of the ground reinforcing material into a substantially conical shape, inserting the ground reinforcing material into a pipe, and pressing the pipe with an external force. , Pressing the tip of the ground reinforcing material with the tip of the pipe, press-fitting the tip of the ground reinforcing material into the ground, and applying the coagulant into the hole in the ground drilled by the press-fitting. This is a ground reinforcement method characterized by reinforcing the ground by injecting it, and pulling out the pipe from the hole using the external force while the ground reinforcing material is placed in the hole.
本発明装置は、先端部がほぼ錐体状に形成される線状の
地盤補強材と、先端部と該地盤補強材の先端部とがほぼ
接触するように該地盤補強材が挿入されるパイプと、該
パイプに設けられ、凝固剤を地盤に削孔された孔部に注
入する注入管と、から成る地盤補強装置である。The device of the present invention includes a linear ground reinforcing material whose distal end is formed into a substantially conical shape, and a pipe into which the ground reinforcing material is inserted so that the distal end and the distal end of the ground reinforcing material substantially contact each other. and an injection pipe provided on the pipe for injecting a coagulant into a hole drilled in the ground.
本発明方法および装置によれば、地盤補強材をパイプ内
に挿入し、該パイプを外力により押圧することにより、
該地盤補強材の先端部を該パイプの先端部で押圧して、
該地盤補強材の先端部を該地盤に圧入し、該凝固剤を該
圧入により削孔された該地盤の孔部に注入して、該地盤
を補強し、該地盤補強材を該孔部に載置したまま、該パ
イプを該外力により該孔部から引き抜く。According to the method and device of the present invention, by inserting a ground reinforcement material into a pipe and pressing the pipe with an external force,
Pressing the tip of the ground reinforcement material with the tip of the pipe,
The tip of the ground reinforcing material is press-fitted into the ground, the coagulant is injected into the hole in the ground drilled by the press-fitting, the ground is reinforced, and the ground reinforcing material is inserted into the hole. While still placed, the pipe is pulled out of the hole by the external force.
このため、地盤補強材がフレキシブルで長い場合であっ
ても、地盤補強材の地盤への挿入が容易に行なうことが
できる。Therefore, even if the ground reinforcing material is flexible and long, the ground reinforcing material can be easily inserted into the ground.
［実施例］
以下、本発明を図面を参照してその実施例に基づいて説
明する。[Examples] Hereinafter, the present invention will be described based on examples with reference to the drawings.
第１図（ａ）は本発明装置の一実施例の断面図、第１図
（ｂ）は第１図（ａ）のＡ−Ａ矢視図、第２図（ａ）は
断面図、第２図（ｂ）は第２図（ａ）のＢ−Ｂ矢視図で
ある。FIG. 1(a) is a sectional view of one embodiment of the device of the present invention, FIG. 1(b) is a view taken along the line A-A in FIG. 1(a), and FIG. FIG. 2(b) is a view taken along the line B-B in FIG. 2(a).
本発明の一実施例を構成する線状の地盤補強材３ａは、
先端部５が本体部６よりも大きい外径の底面７を有する
ほぼ錐体状に形成される。The linear ground reinforcement material 3a constituting one embodiment of the present invention is
The tip portion 5 is formed into a substantially conical shape with a bottom surface 7 having a larger outer diameter than the main body portion 6.
地盤補強材３ａは鋼棒、ワイヤー、セラミック等から成
るが、特にその材料は限定されない。The ground reinforcing material 3a is made of steel rods, wires, ceramics, etc., but the material is not particularly limited.
この先端部５は本体部６とねじ８等により着脱可能に設
けられるが、一体向に構成されても良い。The tip portion 5 is removably attached to the main body portion 6 using a screw 8 or the like, but may be configured integrally.
また、この先端部５はほぼ円錐状に形成されるがほぼ角
錐状に形成されても良い。Further, although the tip portion 5 is formed into a substantially conical shape, it may also be formed into a substantially pyramidal shape.
四角錐、五角錐等その角数は特に限定されない。The number of angles is not particularly limited, such as a square pyramid or a pentagonal pyramid.
また、はぼ円錐状、あるいは、角錐状に形成されれば良
く、周壁、頂点等に若干の変形があるものを含むことは
言うまでもない。Further, it may be formed into a cone-like shape or a pyramid-like shape, and it goes without saying that it includes a shape in which the peripheral wall, apex, etc. are slightly deformed.
また、この先端部５は、鋼、セラミック、合成樹脂、高
強度コンクリート等高強度の材料から成り、特にその材
料は限定されない。Further, the tip portion 5 is made of a high-strength material such as steel, ceramic, synthetic resin, and high-strength concrete, and the material is not particularly limited.
パイプ９は、地盤補強材３ａの先端部５の底面７の外径
よりも小さい中空内径を有し、その先端部１０が地盤補
強材３ａの先端部５の底面７とほぼ接触するように地盤
補強材３ａが内部に挿入される。The pipe 9 has a hollow inner diameter smaller than the outer diameter of the bottom surface 7 of the tip 5 of the ground reinforcing material 3a, and is inserted into the ground so that its tip 10 almost contacts the bottom surface 7 of the tip 5 of the ground reinforcing material 3a. A reinforcing member 3a is inserted inside.
このパイプ９は長手方向にねじ１１により着脱自在に分
割されて構成されるが、一体向に構成されても良い。Although the pipe 9 is configured to be detachably divided in the longitudinal direction by screws 11, it may be configured in one piece.
パイプ９がこのように分割されて構成されると、地盤補
強材３ａの長短にかかわらず、地盤補強材３ａのパイプ
９への挿入が容易に行なうことができる。When the pipe 9 is divided in this manner, the ground reinforcing material 3a can be easily inserted into the pipe 9 regardless of the length of the ground reinforcing material 3a.
さらに、パイプ９は横断面方向にビン１２により分割さ
れて構成されるが一体的に構成されても良い。Furthermore, although the pipe 9 is configured to be divided by the bins 12 in the cross-sectional direction, it may also be configured integrally.
パイプ９がこのように分割されて構成されると、地盤補
強材３ａのパイプ９への挿入が容易に行なうことができ
る。When the pipe 9 is divided in this way, the ground reinforcing material 3a can be easily inserted into the pipe 9.
このパイプ９を外力、例えば、第３図（ａ）（ｂ）に示
されるようにグリッパ−１４でパイプ９を把持した油圧
ジヤツキ１５で押圧することにより、地盤補強材３ａの
先端部５の底面７をパイプ９の先端部１０で押圧する。By pressing this pipe 9 with an external force, for example, a hydraulic jack 15 gripping the pipe 9 with a gripper 14 as shown in FIGS. 7 is pressed with the tip 10 of the pipe 9.
これにより、地盤補強材３ａの先端部５で地盤ｌを押圧
することにより、地盤１に第３図（ｂ）に示されるよう
に圧入して、細長い孔部２を掘削して、地盤補強材３ａ
を孔部２に挿入する。As a result, by pressing the ground l with the tip 5 of the ground reinforcing material 3a, the ground reinforcing material 3a is press-fitted into the ground 1 as shown in FIG. 3a
into hole 2.
次に、凝固剤４をパイプ９に設けられた注入管１３によ
り注入し、地盤補強材３ａを孔部２に載置したまま、パ
イプ９を外力である油圧ジヤツキ１５で孔部２から引き
抜く。Next, the coagulant 4 is injected through the injection pipe 13 provided in the pipe 9, and the pipe 9 is pulled out from the hole 2 using a hydraulic jack 15, which is an external force, with the ground reinforcing material 3a placed in the hole 2.
凝固剤４は、地盤ｌの孔部２に注入され、凝固すること
により地盤１と地盤補強材３ａを固着して地盤１を補強
する。The coagulant 4 is injected into the hole 2 of the ground 1, and solidifies to fix the ground 1 and the ground reinforcing material 3a, thereby reinforcing the ground 1.
この凝固剤４は、モルタル等が用いられるが、特にその
成分は限定されない。Mortar or the like is used as the coagulant 4, but its components are not particularly limited.
凝固剤４は注入管１３により注入されることが好適であ
るが、注入管１３を用いずに、パイプ９内で地盤補強材
３ａとの間の隙間１６によって凝固剤４を注入すること
も可能である。Although it is preferable that the coagulant 4 is injected through the injection pipe 13, it is also possible to inject the coagulant 4 through the gap 16 between the pipe 9 and the ground reinforcing material 3a without using the injection pipe 13. It is.
［発明の効果１
本発明は以上説明したように、地盤補強材がフレキシブ
ルで長い場合であっても、地盤補強材の地盤への挿入が
容易に行なうことができるという効果を奏する。[Advantageous Effects of the Invention 1] As explained above, the present invention has the effect that even when the ground reinforcing material is flexible and long, the ground reinforcing material can be easily inserted into the ground.
第１図（ａ）は本発明装置の一実施例の断面図、第１図
（ｂ）は第１図（ａ）のＡ−Ａ矢視図、第２図（ａ）は
断面図、第２図（ｂ）は第２図（ａ）のＢ−Ｂ矢視図、
第３図（ａ）（ｂ）は工程説明図、第４図（ａ）（ｂ）
は従来例の工程説明図である。
１・・・地盤 ２−・−孔部３ａ・・−地盤
補強材 ４・・・凝固剤５・・・先端部
７・・・底面
１０・・・先端部
１５・・・油圧ジヤツキ
６・・・本体部
９−・・パイプ
１３・・・注入管FIG. 1(a) is a sectional view of one embodiment of the device of the present invention, FIG. 1(b) is a view taken along the line A-A in FIG. 1(a), and FIG. Figure 2 (b) is a BB arrow view of Figure 2 (a),
Figures 3 (a) and (b) are process illustrations, Figure 4 (a) and (b)
is a process explanatory diagram of a conventional example. 1... Ground 2 - Hole 3a... - Ground reinforcing material 4... Coagulant 5... Tip 7... Bottom 10... Tip 15... Hydraulic jack 6...・Body part 9-...Pipe 13...Injection pipe
Claims (1)
て、該地盤補強材の先端部を該地盤に圧入し、 該凝固剤を該圧入により削孔された該地盤 の孔部に注入して、該地盤を補強し、 該地盤補強材を該孔部に載置したまま、該 パイプを該外力により該孔部から引き抜くことを特徴と
する地盤補強法。 ２ 先端部がほぼ錐体状に形成される線状の地盤補強材
と、 先端部と該地盤補強材の先端部とがほぼ接 触するように該地盤補強材が挿入されるパイプと、 該パイプに設けられ、凝固剤を地盤に削孔 された孔部に注入する注入管と、 から成る地盤補強装置。 ３ 該地盤補強材の先端部は本体部と着脱可能に設けら
れる請求項２記載の地盤補強装 置。 ４ 該地盤補強材の先端部は本体部と一体的に構成され
る請求項２記載の地盤補強装置。 ５ 該地盤補強材の先端部はほぼ円錐状に構成される請
求項２ないし４のいずれかに記載の地盤補強装置。 ６ 該地盤補強材の先端部はほぼ角錐状に構成される請
求項２ないし４のいずれかに記載の地盤補強装置。 ７ 該パイプは長手方向に分割されて構成される請求項
２ないし６のいずれかに記載の地盤補強装置。 ８ 該パイプは長手方向に一体的に構成される請求項２
ないし６のいずれかに記載の地盤補強装置。 ９ 該パイプは横断面方向に分割されて構成される請求
項２ないし８のいずれかに記載の地盤補強装置。 １０ 該パイプは横断面方向に一体的に構成される請求
項２ないし８のいずれかに記載の地盤補強装置。[Claims] 1. The tip of the ground reinforcing material is formed into a substantially conical shape, the ground reinforcing material is inserted into a pipe, and the pipe is pressed by an external force, so that the tip of the ground reinforcing material is shaped like a cone. The tip of the ground reinforcing material is press-fitted into the ground by pressing the tip of the pipe, and the coagulant is injected into the hole drilled in the ground by the press-fitting, and the ground is strengthened. A method for reinforcing the ground, comprising: reinforcing the pipe, and pulling the pipe out of the hole using the external force while the ground reinforcing material is placed in the hole. 2. A linear ground reinforcing material whose tip end is formed into a substantially conical shape; a pipe into which the ground reinforcing material is inserted so that the tip end and the tip of the ground reinforcing material are substantially in contact with each other; and the pipe. A ground reinforcement device that is installed in the ground and consists of an injection pipe that injects a coagulant into a hole drilled in the ground. 3. The ground reinforcing device according to claim 2, wherein the tip of the ground reinforcing material is detachably attached to the main body. 4. The ground reinforcing device according to claim 2, wherein the tip of the ground reinforcing material is integrally constructed with the main body. 5. The ground reinforcing device according to claim 2, wherein the tip of the ground reinforcing material has a substantially conical shape. 6. The ground reinforcing device according to any one of claims 2 to 4, wherein the tip of the ground reinforcing material has a substantially pyramidal shape. 7. The ground reinforcement device according to claim 2, wherein the pipe is divided in the longitudinal direction. 8. Claim 2, wherein the pipe is integrally constructed in the longitudinal direction.
7. The ground reinforcement device according to any one of 6 to 6. 9. The ground reinforcing device according to claim 2, wherein the pipe is divided in a cross-sectional direction. 10. The ground reinforcement device according to claim 2, wherein the pipe is integrally constructed in a cross-sectional direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10451890A JPH045313A (en) | 1990-04-20 | 1990-04-20 | Method and device for reinforcing ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10451890A JPH045313A (en) | 1990-04-20 | 1990-04-20 | Method and device for reinforcing ground |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH045313A true JPH045313A (en) | 1992-01-09 |
Family
ID=14382715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10451890A Pending JPH045313A (en) | 1990-04-20 | 1990-04-20 | Method and device for reinforcing ground |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH045313A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05311653A (en) * | 1992-05-15 | 1993-11-22 | Railway Technical Res Inst | Tension reinforcing body constructing device |
| JPH05311652A (en) * | 1992-05-15 | 1993-11-22 | Railway Technical Res Inst | Tension reinforcing body constructing device |
| JPH06128954A (en) * | 1992-10-20 | 1994-05-10 | Railway Technical Res Inst | Tensile reinforcing member construction device |
| JPH06287932A (en) * | 1992-04-09 | 1994-10-11 | Kensetsu Kikaku Consultant:Kk | Bar-shape reinforcing material for reinforcing ground and ground reinforcing method |
-
1990
- 1990-04-20 JP JP10451890A patent/JPH045313A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06287932A (en) * | 1992-04-09 | 1994-10-11 | Kensetsu Kikaku Consultant:Kk | Bar-shape reinforcing material for reinforcing ground and ground reinforcing method |
| JPH05311653A (en) * | 1992-05-15 | 1993-11-22 | Railway Technical Res Inst | Tension reinforcing body constructing device |
| JPH05311652A (en) * | 1992-05-15 | 1993-11-22 | Railway Technical Res Inst | Tension reinforcing body constructing device |
| JPH06128954A (en) * | 1992-10-20 | 1994-05-10 | Railway Technical Res Inst | Tensile reinforcing member construction device |
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