JPS58189410A - Forcibly controlled injection work - Google Patents
Forcibly controlled injection workInfo
- Publication number
- JPS58189410A JPS58189410A JP7079982A JP7079982A JPS58189410A JP S58189410 A JPS58189410 A JP S58189410A JP 7079982 A JP7079982 A JP 7079982A JP 7079982 A JP7079982 A JP 7079982A JP S58189410 A JPS58189410 A JP S58189410A
- Authority
- JP
- Japan
- Prior art keywords
- injection
- tube
- ground
- injection hole
- injected
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、注入工法を改良した強制制御注入工法に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a forced control injection method that is an improved injection method.
従来一般の注入工法は、セメント、ベントナイト、粘土
、薬液などの注入材料を地盤の空隙に注入充填し、もっ
て漏水ｔ−ｉめ、あるいは地盤の支持力強化全図ること
に供されている。その施工は、ポーリング機械で注入孔
をはシ、この注入孔に直接注入材料を圧入する方法で行
なわれている。In the conventional injection method, a material such as cement, bentonite, clay, or chemical solution is injected and filled into the voids in the ground, thereby preventing water leakage or completely reinforcing the bearing capacity of the ground. The construction is carried out by drilling an injection hole with a poling machine and press-fitting the injection material directly into the injection hole.
し力・し、従来の注入工法は、もっばら経験的に施工さ
れているにすぎず、〃・つ、注入材料の流失をともなう
ので、施工の艮し悪し、実効のはとが定〃・でなく、確
実性に乏しいという欠点がめった。However, the conventional injection method is only applied based on experience, and the injection material is washed away, so the execution is poor and the effectiveness is uncertain. However, it often has the disadvantage of lack of certainty.
そこでこの発明の目的は、地中の舟尾の深さ位［に、注
入材料のに失を生１°ゐことなく、かつ、注入後の形状
を強ん１」制（２）して注入することができ、従って、
地盤吹拭又は支持力強化の確実性、実効性の高い強制制
御１１ａ人工法葡提供することにある〇
この発明の究極の自重は、地盤中にｆ９′ｒ安径、所要
深さの注入孔をほり、ｍｉｌ記注入孔中に所要形状、大
きさ、長さのチューブ會仕入管およびアースアンカーの
引張材の如き必要な構造要素と結合して挿入し、注入管
？］ｌ−通じて所定の注入材料會所景の注入圧で注入し
、チューブケ一定の＠度まで膨張せしめる工程刀・らな
る’Ｍ ）１４１１制御注入工法を提供することでるる
。Therefore, the purpose of this invention is to inject into the ground at the depth of the stern without causing any loss of the material to be injected, and by controlling the shape after injection (2). can, therefore,
The ultimate advantage of this invention is to provide an artificial method for forced control 11a with a high degree of certainty and effectiveness for soil blowing or reinforcement of supporting capacity. , and insert it into the injection hole by combining it with necessary structural elements such as a tube of the desired shape, size, and length and the tensile material of the earth anchor. 1411 A controlled injection method is provided in which the injection material is injected at a predetermined injection pressure through the tube and expanded to a certain degree.
なお、この発明において、構造要素は選択的なものでめ
９、即ち施工の目的上必要としないときは、除外される
性質のものでめる０次に、この発明を図示の実施例に！
＃）ｖ！、ｆ！Ａする０
第１図〜第３図は、この発明の強制制御注入工法ｔ、ア
ースアンカーの造成を目的として施工する場合の枢要な
工程図を示す。In addition, in this invention, the structural elements are optional; that is, they are excluded when they are not required for the purpose of construction.Next, this invention is described in the illustrated embodiment!
#)v! , f! A0 Figures 1 to 3 show important process diagrams for the forced controlled injection construction method of the present invention, which is carried out for the purpose of creating an earth anchor.
まず第１図は、地盤１中に、アースアンカー掘削機など
に工り、口径がｌＯｍ程度、深さが４．５惰程度の注入
孔２をほった段階會示す。First, Fig. 1 shows the stage at which an injection hole 2 with a diameter of about 10m and a depth of about 4.5 mm is dug in the ground 1 using an earth anchor excavator or the like.
注入孔２の口径おＬび深さは、当該注入工法の施工目的
に応じて、即ち、アースアンカーでめる力・、路盤補強
力・、簡易山留であるか等々に応じて大小、長短に異な
る。The diameter and depth of the injection hole 2 may be large or small, long or short, depending on the purpose of the injection method, i.e., the power of the earth anchor, the reinforcement force of the roadbed, whether it is a simple mountain retaining, etc. Different.
また、注入孔２の本数、ピッチも凹じ〈注入工法の前向
様の施工目的に応じて多少、疎密に異なる。In addition, the number and pitch of the injection holes 2 are also concave.
次に第２図は、上記注入孔２中に、チューブ３をば注入
管４おＬび必要な構造要素の先に結合した状態のものと
して、同チューブ３が孔底に達する深さまで挿入した状
態會示す０チユーブ３としては、注入孔２中への挿入作
業および注入材料の注入圧に耐えるだけの強度を有する
もの、たとえば細長い布袋若しくはゴム袋又はプラスチ
ック袋などが使用される。Next, Fig. 2 shows that the tube 3 is inserted into the injection hole 2 until it reaches the bottom of the hole, with the tube 3 connected to the tip of the injection tube 4 and necessary structural elements. As the state-indicating tube 3, a material having enough strength to withstand the insertion operation into the injection hole 2 and the injection pressure of the injection material, such as a long and narrow cloth bag, rubber bag, or plastic bag, is used.
また、注入管４としては、埋殺しにしても不経済となら
ない程度に安匝で十分小口径のもの、たとえば直径２０
鵬前後のポリエチレンパイプが使用される。In addition, the injection pipe 4 may be one that is safe and has a sufficiently small diameter so that it will not be uneconomical even if it is buried.
Polyethylene pipes before and after Peng are used.
必要な構造要素として、アースアンカーの場合は、第４
図に示すように、引張材として直径１２〜１３１１１７
程度で、必要本数のＰＣ鋼ニジ線５・・・を、上記注入
管４が中心になるように束ねて上記チューブ３中にその
深場一杯に挿入する（つまり、チューブ３の長さがＰＣ
Ｃ鋼製線５の定着長となる０、）、と共に、同チューブ
３０口部’Ｉｐｃ鋼１９線５に結合して密閉し施工され
る。もつとも注入工法の目的が、地盤の圧密促進、アン
ダビニング、簡易山留等でｈる場合には、前記構造要素
なるものは無用のため使用さ第１ることばない。As a necessary structural element, in the case of an earth anchor, the fourth
As shown in the figure, diameter 12~131117 as tensile material
The required number of PC steel rainbow wires 5 are bundled so that the injection tube 4 is in the center and inserted into the tube 3 to its full depth (that is, the length of the tube 3 is
0, ), which is the anchoring length of the C steel wire 5, and the tube 30 is connected to the IPC steel 19 wire 5 and sealed for construction. Of course, when the purpose of the injection method is to promote ground consolidation, underbining, simple mountain retaining, etc., the above-mentioned structural elements are useless and are not used in the first place.
次に、第３図は、注入ｔ４を通じて所定の注入材料６を
一定の注入圧で注入し、チューブ３を可能な限度に膨張
せしめた状態を示す。注入材料としては、セ−メント、
ベントナイト、砂。Next, FIG. 3 shows a state in which a predetermined injection material 6 is injected at a constant injection pressure through injection t4, and the tube 3 is expanded to the maximum possible extent. Injection materials include cement,
Bentonite, sand.
火山灰など安価なものを、１種で又は２棟以上混合した
ものとしてグラウトポンプなどで強制注入する。その注
入圧は通常１〜５ ｋｇ／ｃｊであるが、必要によって
は５ｏＶ−程度の尚圧注入も可能である。Inexpensive materials such as volcanic ash are forcibly injected as a single type or a mixture of two or more using a grout pump. The injection pressure is usually 1 to 5 kg/cj, but if necessary, it is also possible to inject at a pressure of about 5 oV.
次に、この発明の強制制御注入工法をアースアンカーと
して施工した結果を表にして示す。Next, the results of construction using the forced control injection method of the present invention as an earth anchor are shown in a table.
下表は、注入材料として、総１１２００ ｔに占る早強
セメン） ２８０ ’ｆ ＋混和剤（イントルージョン
）２．８ｋｆ、残量か水の配合とし、これを注入ポンプ
により注入管４を通じて圧送し、チューブ３（布袋）の
許容圧力５Ｖ−付近で止め、注入管４を結束し、３日間
養生した後に引抜き試験をした結果を示す。The table below shows the mixture of 280'f + admixture (intrusion) 2.8kf (early strength cement, which accounts for a total of 11,200 tons) and the remaining amount of water as the injection material, which is pumped through injection pipe 4 by an injection pump. Then, the allowable pressure of the tube 3 (cloth bag) was stopped at around 5V-, the injection tube 4 was tied together, and after curing for 3 days, a pullout test was performed.The results are shown below.
上記表のとおり、注入孔２の深さ、土質σ）如何、チュ
ーブ３の長さ、注入量の若干の多少、注入圧の若干の高
低差などの要因にはあまり影響されることなく、引き抜
き抵抗方は、５１〜８ｔの間でほぼ平均した大きさを発
揮し、アースアンカーとしての確実性、実効性の高いこ
とか明らかである。As shown in the table above, the extraction is not affected by factors such as the depth of the injection hole 2, the soil quality (σ), the length of the tube 3, the amount of injection, and the slight difference in injection pressure. The resistance was approximately average between 51 and 8 tons, and it is clear that it is highly reliable and effective as an earth anchor.
次に、第５図は、この発明の他の実施例として、チュー
ブ３□は、上下方向に列をなして数個のこぶを生ずる形
態に膨張するものを使用し、こねに注入材料６を所定の
注入圧で注入して施工した状態を示す。本実施例は、ア
ースアンカーを目的とした施工例であるが、チューブ３
□がその上下方向に数個のこぶを生ずる結果、支持力強
化の効果がすこぶる大きいのである。Next, FIG. 5 shows another embodiment of the present invention, in which the tube 3 □ expands to form several bumps in a row in the vertical direction, and the injection material 6 is poured into the dough. Shows the state of construction after being injected at the predetermined injection pressure. This example is a construction example for the purpose of an earth anchor, but the tube 3
As a result of the formation of several bumps in the vertical direction of □, the effect of strengthening the supporting force is extremely large.
次に、第６図は、この発明のさらに異なる実施例として
、チューブ３３は、注入孔２の深さのほぼ全長におよぶ
長さのものを使用し、これに注入材料６ケ所定の注入圧
で注入して施工した状態を示す。本実施例は、たとえは
アンダビニング若しくは路盤補強又は撰〕易山留等を目
的とした施工例であるが、同時に圧密促進、地盤改良、
支持力強化の効果も奏する。Next, FIG. 6 shows a further different embodiment of the present invention, in which a tube 33 having a length extending almost to the entire depth of the injection hole 2 is used, and six injection materials are applied to this tube at a predetermined injection pressure. Shows the state of construction after being injected with. This example is an example of construction for the purpose of under-binning, roadbed reinforcement, or easy mountain retention, but it is also an example of construction for promoting consolidation, ground improvement, etc.
It also has the effect of strengthening supporting capacity.
以上に説明したとおりであって、この発明は、地盤中に
ｒ５Ｔ要径、所要深さσン注入孔なほり、前記注入孔中
に、所要の形状、大きさ、長さのチューブを注入管およ
び必要な構造要素と結合して挿入し、注入管を通じてθ
［定の注入材料を所要の注入圧で注入し、チューブを′
一定の限度までｉ脹せしめる工程からなることな特徴と
する強制制御注入工法を要旨と−するものであるから、
次の効果を奏する。As explained above, the present invention involves drilling an injection hole in the ground with a required diameter of r5T and a required depth of σ, and inserting a tube of a desired shape, size, and length into the injection hole. and the necessary structural elements and insert it through the injection tube to θ
[Inject the specified injection material at the required injection pressure, and then
The gist of this is a forced controlled injection method, which is characterized by a process of inflating it to a certain limit.
It has the following effects.
■ 注入材料の流失を一切生じな（、無駄がな（・。■ No leakage of injection material (no waste).
■ 注入材料としては１１１！：１曲格のセメント、ベ
ントナイト、砂、火山灰など、固結するもの、固結しな
いものを１ｍで、又は多極混合して使用できる。■ 111 as an injection material! : Consolidated or non-consolidated materials such as cement, bentonite, sand, volcanic ash, etc. can be used at 1 m or in a multipole mixture.
■ 注入材料によりチューブを膨張させ、もって地盤の
圧密促進、地盤改装、支持力強化などの効果を生じさせ
るものであって、汗入相料のがＣ失を生じなく、注入材
料σ］注入圧が全（無駄にならないので、施工が極めて
確実であり、その実効を大きく期待できる。■ The tube is expanded by the injection material, thereby promoting the consolidation of the ground, renovating the ground, strengthening the bearing capacity, etc., without causing loss of carbon in the sweat phase material, and increasing the injection pressure of the injection material σ] The construction is extremely reliable as there is no waste, and its effectiveness can be greatly expected.
■ チューブの形状、大きさく直径）、長さの如何によ
り、施工の目的に種々対応できる融通性がある。■ It is flexible enough to accommodate various construction purposes depending on the tube shape, size (diameter), and length.
■ また、必セな構造要素を袋と結合することによって
、たとえばアースアンカーとし、又は檎造斐素な特に設
けないでアンダビニング。■ Also, by combining essential structural elements with the bag, for example, it can be used as an earth anchor, or it can be underbind without providing any special structure.
絶無補強、簡易山留とする等の広範な目的。A wide range of purposes such as absolute reinforcement and simple mountain retaining.
相違に応することができる。Be able to accommodate differences.
■ 施工の技術が全て一般的なもので容易である。■ Construction techniques are all common and easy.
第１図〜第３図はこの発明の強制制御注入工法ケアース
アンカーに適用した場合の枢要な工程図、第４図は造成
したアースアンカーの睦細な断面図、第５図、第６図は
この発明の他り実施例を示す断面図である。Figures 1 to 3 are important process diagrams when the forced controlled injection method of this invention is applied to the care earth anchor, Figure 4 is a detailed cross-sectional view of the constructed earth anchor, and Figures 5 and 6. FIG. 2 is a sectional view showing another embodiment of the present invention.
Claims (1)
前記注入孔中に、所要の形状、大きさ、長さのチューブ
を注入管および必要な構造要素と結合して挿入し、注入
ｆ’を通じて所定の注入材料全所要の注入圧で注入し、
チューブを一定の限度まで膨張せしめる工８カ・らなる
ことｔ特徴とする強制制御注入工法。+11 Injection hole t of required diameter and required depth in the ground is
Inserting a tube of the desired shape, size, and length into the injection hole in combination with the injection tube and necessary structural elements, and injecting a predetermined injection material at the required injection pressure through injection f';
A forced injection method that is characterized by 8 steps to expand the tube to a certain limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7079982A JPS58189410A (en) | 1982-04-26 | 1982-04-26 | Forcibly controlled injection work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7079982A JPS58189410A (en) | 1982-04-26 | 1982-04-26 | Forcibly controlled injection work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58189410A true JPS58189410A (en) | 1983-11-05 |
Family
ID=13441947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7079982A Pending JPS58189410A (en) | 1982-04-26 | 1982-04-26 | Forcibly controlled injection work |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58189410A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62236919A (en) * | 1986-04-04 | 1987-10-17 | Kajima Corp | Method of setting earth anchor |
| JPS62264218A (en) * | 1986-05-09 | 1987-11-17 | Kokudo Bosai Gijutsu Kk | Bearing type earth anchoring work for soft ground and grouting work therefor |
| EP1820904A1 (en) * | 2006-02-20 | 2007-08-22 | M-Tech Patrimonium | Foundation pile and method for reinforcing foundations |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4956410A (en) * | 1972-10-02 | 1974-05-31 |
-
1982
- 1982-04-26 JP JP7079982A patent/JPS58189410A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4956410A (en) * | 1972-10-02 | 1974-05-31 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62236919A (en) * | 1986-04-04 | 1987-10-17 | Kajima Corp | Method of setting earth anchor |
| JPH0412768B2 (en) * | 1986-04-04 | 1992-03-05 | Kajima Corp | |
| JPS62264218A (en) * | 1986-05-09 | 1987-11-17 | Kokudo Bosai Gijutsu Kk | Bearing type earth anchoring work for soft ground and grouting work therefor |
| JPH0439533B2 (en) * | 1986-05-09 | 1992-06-29 | ||
| EP1820904A1 (en) * | 2006-02-20 | 2007-08-22 | M-Tech Patrimonium | Foundation pile and method for reinforcing foundations |
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