1310062 (1) 九、發明說明 【發明所屬之技術領域】 本發明是關於軟弱地層、漏水地層等的地層注入工法 ，詳細地說，是關於封塞器是使用膨縮封塞器藉此使封塞 器的膨縮形成自由的地層注入工法，即，是關於將封塞器 形成爲長尺寸，藉由使其形成膨脹就能夠封塞外管吐出口 的一部份，並且藉由使其形成收縮就能夠在外管內上下移 動內管，再加上，藉由備有三個以上的膨縮封塞器，就能 夠從二個以上的外管吐出口同時進行注入，藉此，不只使 急凝性灰漿及滲透性灰漿重疊作業形成的複合注入成爲可 能，還可從複數的外管吐出口進行同時注入的一種地層注 入工法。 【先前技術】 軟弱地層、漏水地層等的地層注入工法，習知已有第 φ π圖所示的使用注入管20的注入工法（日本特許第 2772637 號）。 於第11圖中，注入管20具有外管21和內管22，在 對該地層23中設置注入管20時，是先將外管21設置在 地層23中。於外管21在軸方向不同位置的管壁24上任 意開孔著複數個吐出口 25、25· .25。各吐出口 25均由 橡皮套26覆蓋著。 接著，是將內管22插入在外管21內。於內管22也 是在軸方向不同位置的管壁27上任意開孔著複數個噴射 -4- (2) 1310062 出口 28、28. . 28。該噴射出口 28、28. . 28是盡可能 開孔成小孔，藉此以對內管22內的注入液的每分送液量 順利產生管內壓力，使注入液從噴射出口 2 8噴射至空間 3 1內。 再加上，於內管22和外管21的間隙所形成的管路 29的長向不同位置上，個隔著間隔至少配置有三個封塞 器30、30· · 30，藉此在彼此相鄰的封塞器30、30間， g 即在上下相鄰的封塞器30、30間，於長向形成有複數個 彼此成爲獨立的空間31。並且，是將封塞器30、30配置 成各空間31至少分配有一個外管吐出口 25及內管噴射口 28 〇 使用上述構成的注入管裝置20，在注入時，首先是 對外管21和地層23的間隙注入套管灰漿32以密封該間 隙。接著是從內管22的管路22a導入注入液，如箭頭符 號所示從內管22的噴射出口 28、28 ·. 28噴射注入液至 φ 各空間31、3 1內，使注入液又經過位於各空間3 1、3 1 · • 31的外管21的吐出口 25來推開橡皮套26，切入套管 灰漿32然後滲透注入地層23中。 但是，上述習知技術的注入管20上所存在的封塞器 30是以橡皮圈所構成，因此，內管22是無法移動，再加 上，封塞器也無法形成爲長尺寸，因此，是不可能進行急 凝性灰漿及滲透性灰漿重疊作業形成的複合注入。又加上 ，土壓的負載造成上述習知注入管20變形時，內管就變 成完全無法移動。 -5- (3) 1310062 〔專利文獻1〕日本特許第2772637號 【發明內容】 〔發明欲解決之課題〕 於是，本發明欲解決之課題是藉由使用三個以上的膨 縮封塞器來取代做爲封塞器的橡皮圏，以改良上述習知技 術所存在的缺點，提供一種地層注入工法是將封塞器形成 爲長尺寸，藉由使其形成膨脹就能夠封塞外管吐出口的一 部份，並且，藉由使其形成收縮就能夠在外管內上下移動 內管，藉此，不只使急凝性灰漿及滲透性灰漿重疊作業形 成的複合注入成爲可能，還可從複數的外管吐出口進行同 時注入。 〔用以解決課題之手段〕 爲解決上述課題，本發明的地層注入工法，其特徵爲 φ ，是於地層中，設置著於軸方向不同位置具有複數外管吐 出口的外管，於該外管內，插入著於長向不同位置具有三 個以上的膨縮封塞器，並且，於彼此鄰接的膨縮封塞器間 具有內管吐出口的內管，將流體送入上述三個以上的膨縮 封塞器，使該膨縮封塞器形成膨脹以在彼此鄰接的膨縮封 塞器間形成二個以上的外管內空間，從內管吐出口使注入 液經過外管內空間及外管吐出口同時注入地層。 再加上，爲解決上述課題，本發明的地層注入工法， 其特徵爲，是於地層中，設置著於軸方向不同位置具有複 -6- (4) 1310062 數外管吐出口的外管，於該外管內，插入著於長向不同位 置具有三個以上的膨縮封塞器，並且，於彼此鄰接的膨縮 封塞器間具有內管吐出口的內管，將流體送入上述三個以 上的膨縮封塞器，使該膨縮封塞器形成膨脹以在彼此鄰接 的膨縮封塞器間形成二個以上的外管內空間，從內管吐出 口使注入液經過外管內空間及外管吐出口同時注入地層， 接著，從膨縮封塞器排出流體使膨縮封塞器形成收縮，移 φ 動內管將內管吐出口吻合其他的外管吐出口來移動注入平 台後，使膨縮封塞器膨脹形成外管內空間，同樣地重覆作 業將注入液同時注入地層中。 又加上，爲解決上述課題，本發明的地層注入工法， 其特徵爲，是於地層中，設置著於軸方向不同位置具有複 數外管吐出口的外管，於該外管內，插入著於長向不同位 置具有三個以上的膨縮封塞器，於彼此鄰接的膨縮封塞器 間各自的內管吐出口是分別位於不同位置的複數支內管， φ將流體送入上述三個以上的膨縮封塞器，使該膨縮封塞器 形成膨脹以在彼此鄰接的膨縮封塞器間形成二個以上的外 管內空間，從內管吐出口使注入液經過外管內空間及外管 吐出口同時注入地層》 再加上，又爲解決上述課題，本發明的地層注入工法 ，其特徵爲，是於地層中，設置著於軸方向不同位置具有 複數外管吐出口的外管，於該外管內，插入著於長向不同 位置具有三個以上的膨縮封塞器，於彼此鄰接的膨縮封塞 器間各自的內管吐出口是分別位於不同位置的複數支內管 (5) 1310062 ，將流體送入上述三個以上的膨縮封塞 器形成膨脹以在彼此鄰接的膨縮封塞器 外管內空間，從內管吐出口使注入液經 管吐出口同時注入地層，接著，從膨縮 膨縮封塞器形成收縮，移動複數支內管 吻合其他的外管吐出口來移動注入平台 膨脹形成外管內空間，同樣地重覆作業 φ 地層中。 〔發明效果〕 本發明是於長向不同位置具有三個 ’於這些膨縮封塞器間將具有內管吐出 ’將流體送入膨縮封塞器使該膨縮封塞 彼此鄰接的膨縮封塞器間形成二個以上 內管吐出口使注入液經過外管內空間及 φ入地層。再加上，從膨縮封塞器排出流 成收縮，於該狀態下使內管移動至其他 使膨縮封塞器形成膨脹，同樣地重覆進 入。因此，即使封塞器是形成爲長尺寸 流體使其成爲縮小，是可使內管成爲上 上，以膨縮封塞器邊封塞外管吐出口的 他的吐出口進行注入，因此，急凝性灰 疊作業形成的複合注入就成爲可能。 器，使該膨縮封塞 間形成二個以上的 過外管內空間及外 封塞器排出流體使 將內管吐出口分別 後，使膨縮封塞器 將注入液同時注入 以上的膨縮封塞器 口的內管插入外管 器形成膨脹，以在 的外管內空間，從 外管吐出口同時注 體使膨縮封塞器形 的注入平台之後， 行注入液的同時注 ，但排出封塞器的 下自由移動。再加 一部份也能邊從其 漿及滲透性灰漿重 (6) 1310062 【實施方式】 〔發明之最佳實施形態〕 以下，是使用附件圖面來對本發明進行詳細說明。 第1圖爲本發明地層注入工法施工步驟說明用的剖面 圖。第2圖爲從膨縮封塞器排出流體使內管移動至其他的 注入平台的狀態剖面圖。第3圖爲使第2圖的膨縮封塞器 形成膨脹從其他的注入平台進行注入的狀態剖面圖。第4 圖爲表示使用複數支內管時的狀態剖面圖。第5圖爲從第 4圖的膨縮封塞器排出流體使複數支內管移動至其他的注 入平台的狀態剖面圖。第6圖爲使第5圖的膨縮封塞器形 成膨脹從其他的注入平台進行注入的狀態剖面圖。第7圖 爲外管內空間又增加備有膨縮封塞器的狀態剖面圖。第8 圖爲從第7圖的膨縮封塞器排出流體使複數支內管移動至 其他的注入平台的狀態剖面圖。第9圖爲使第8圖的膨縮 封塞器形成膨脹從其他的注入平台進行注入的狀態剖面圖 。第10圖爲實際使用的注入管的剖面圖。第11圖爲習知 的注入管的剖面圖。 如第1圖所示，本發明，首先是於地層1中，設置著 於軸方向不同的位置具有複數外管吐出口 2、2· · 2的外 管3。該外管3在地層1中的設置作業雖未圖示，但是在 地層1形成鑽掘孔，於該鑽掘孔內插入外管3來進行設置 作業。外管吐出口 2、2· .2分別是由橡皮套4覆蓋著。 接著，將內管5插入該外管3內。內管5是在外側長 向不同的位置上具有隔著間隔形成的三個以上的膨縮封塞 -9- (8) 1310062 漿，接著，移動注入平台，於第3圖中，是注入固結時間 長的滲透性灰漿藉此來使複合注入成爲可能。 第4圖爲使用複數支內管5的例子其剖面圖。如第4 圖所示，與第1圖相同，是於地層1中，設置著於軸方向 不同的位置具有複數外管吐出口 2、2· · 2的外管3，將 複數支的內管5、5· · 5插入該外管3內。複數支的內管 5、5· · 5是與第1圖相同在長向不同的位置上具有三個 φ 以上的膨縮封塞器6、6· ·6，並且各自的內管吐出口 7 、7· _7是構成爲分別位於膨縮封塞器6、6間。接著， 如第4圖所示，將流體送入三個以上的膨縮封塞器6、6 •·6使其膨脹以在彼此鄰接的膨縮封塞器6、6間形成 二個以上的外管內空間9、9· .9，從內管吐出口 7使注 入液經過外管內空間9及外管吐出口 2同時注入地層，藉 此形成固結區域10。 接著，如第5圖所示，從膨縮封塞器6、6· ·6排出 φ 流體來形成收縮，使內管5成爲自由移動。然後，將複數 支的內管5、5· · 5往上方移動使內管吐出口 7分別吻合 於其他的外管吐出口來移動注入平台後，如第6圖所示， 使膨縮封塞器6、6· · 6膨脹形成外管內空間9，重覆同 樣的作業將注入液同時注入地層〗中，使固結區域1 0形 成重疊。 第7圖是於第4的外管內空間9又設有空間內膨縮封 塞器的例子其剖面圖。如第7圖所示，與第1圖或與 第4圖相同，是於地層1中，設置著於軸方向不同的位置 -11 - (9) 1310062 具有複數外管吐出口 2、2· · 2的外管3’將複數支的內 管5、5· .5插入該外管3內。複數支的內管5、5. .5 ，是於長向不同的位置上具有三個以上的膨縮封塞器6、 6 ·· 6，並且於空間內膨縮封塞器1 1所區隔形成的空間 12、12，各配有一個內管吐出口 7。該內管吐出口可以不 必爲噴射口，也可以爲細孔。 接著，如第7圖所示，對三個以上的膨縮封塞器6、 φ 6· ·6及空間內膨縮封塞器11輸送流體來形成膨脹，從 膨縮封塞器6和空間內膨縮封塞器1 1之間區隔形成的空 間1 2的內管吐出口 7使注入液經過區隔形成的空間1 2及 外管吐出口 2同時注入地層1，藉此形成固結區域1 〇。 其次，如第8圖所示，從膨縮封塞器6、6· ·6及空 間內膨縮封塞器11排出流體來形成收縮，使內管5成爲 自由移動。然後，將複數支的內管5、5· ·5往上方移動 使內管吐出口 7分別吻合於其他的外管吐出口來移動注入 •平台後，如第9圖所示，使膨縮封塞器6、6· ·6膨脹及 空間內膨縮封塞器11膨脹形成區隔形成的空間12,重覆 同樣的作業將注入液同時注入地層1中，使固結區域10 形成重疊。 另，於第4圖中，在外管3內，插入與膨縮封塞器6 形成連結的封塞器流道8,透過封塞器流道8將流體送入 膨縮封塞器6使該封塞器形成膨脹，或是從膨縮封塞器6 排出流體使該封塞器形成收縮。又於第7圖中，是將連通 著膨縮封塞器6及空間內膨縮封塞器11的封塞器流道8 -12- (10) 1310062 插入在外管3內，透過封塞器流道8將流體送入膨縮封 器6及空間內膨縮封塞器11使該封塞器形成膨脹，或 從膨縮封塞器6、11排出流體使該封塞器形成收縮。 第10圖爲表示工地現場現實狀況實際使用的注入 的剖面圖，本發明工法是使用該注入管來實施地層注入 法》再加上，注入液（A液、B液）是使用未圖示的自 控制注入液送液裝置，從注入液槽15經過泵浦P壓力 φ P及流量計F送液至內管5的注入液流道17、18，A液 B液是分別從各自的內管吐出口 7、7噴射出來，然後 過外管內空間9，從外管吐出口注入至地層1。接著， 管5是被移動往上方，與上述相同使A液、B液注入地 1中。 〔產業上之可利用性〕 本發明地層注入工法其封塞器是使用膨縮封塞器藉 φ使膨縮封塞器的膨縮形成自由，即，是將封塞器形成爲 尺寸，藉由使其形成膨脹就能夠封塞外管吐出口的一部 ，並且藉由使其形成收縮還能夠在外管內上下移動內管 再加上，藉由備有三個以上的膨縮封塞器，就能夠從二 以上的外管吐出口同時進行注入，因此’急凝性灰漿及 透性灰漿重疊作業形成的複合注入就成爲可能，針對地 注入工程領域其利用性高。 【圖式簡單說明】 塞 是 管 工 動 計 、 經 內 層 此 長 份 ， 個 滲 層 -13- (11) 1310062 第1圖爲本發明地層注入工法施工步驟說明用的剖面 圖。 第2圖爲從膨縮封塞器排出流體使內管移動至其他的 注入平台的狀態剖面圖。 第3圖爲使第2圖的膨縮封塞器形成膨脹從其他的注 入平台進行注入的狀態剖面圖。 第4圖爲表示使用複數支內管時的狀態剖面圖。 第5圖爲從第4圖的膨縮封塞器排出流體使複數支內 管移動至其他的注入平台的狀態剖面圖。 第6圖爲使第5圖的膨縮封塞器形成膨脹從其他的注 入平台進行注入的狀態剖面圖。 第7圖爲外管內空間又增加備有膨縮封塞器的狀態剖 面圖。 第8圖爲從第7圖的膨縮封塞器排出流體使複數支內 管移動至其他的注入平台的狀態剖面圖。 第9圖爲使第8圖的膨縮封塞器形成膨脹從其他的注 入平台進行注入的狀態剖面圖。 第10圖爲實際使用的注入管的剖面圖。 第11圖爲習知的注入管的剖面圖。 【主要元件符號說明】 1 :地層 2 :外管吐出口 3 :外管 -14- (12) (12)1310062 5 :內管 6 :膨縮封塞器 7 :內管吐出口 8 :封塞器流道 9 :外管內空間 1 0 :固結區域 1 1 :空間內膨縮封塞器 1 2 :區隔形成的空間1310062 (1) EMBODIMENT OF THE INVENTION [Technical Field] The present invention relates to a formation injection method for a weak formation, a water leakage formation, etc., and more particularly, relates to a closure device using a expansion and contraction device to seal The expansion and contraction of the plug forms a free formation injection method, that is, the formation of the obturator into a long size, by which it expands to block a part of the outer tube discharge port, and by forming a contraction The inner tube can be moved up and down in the outer tube, and by providing three or more expansion and contraction plugs, it is possible to simultaneously inject from two or more outer tube discharge ports, thereby not only making the rapid setting A composite injection formed by the overlapping operation of the mortar and the permeable mortar is possible, and a formation injection method for simultaneous injection from a plurality of outer tube discharge ports is also possible. [Prior Art] The formation method of the formation of a weak formation, a water leakage formation, etc., is known, and the injection method using the injection pipe 20 shown in the first φ π diagram is known (Japanese Patent No. 2772637). In Fig. 11, the injection pipe 20 has an outer pipe 21 and an inner pipe 22. When the injection pipe 20 is provided in the formation 23, the outer pipe 21 is first placed in the formation 23. A plurality of discharge ports 25, 25·.25 are arbitrarily opened in the wall 24 of the outer tube 21 at different positions in the axial direction. Each of the discharge ports 25 is covered by a rubber sleeve 26. Next, the inner tube 22 is inserted into the outer tube 21. The inner tube 22 is also arbitrarily opened in the tube wall 27 at different positions in the axial direction by a plurality of injections -4- (2) 1310062 outlets 28, 28, . The injection outlets 28, 28.2.8 are opened as small as possible, whereby the pressure in the tube is smoothly generated for the amount of liquid per minute of the injection liquid in the inner tube 22, so that the injection liquid is ejected from the ejection outlet 28. To space 3 1 inside. Further, at least different positions in the longitudinal direction of the pipe 29 formed by the gap between the inner pipe 22 and the outer pipe 21 are disposed at least three obturators 30, 30··30, thereby being in phase with each other. Between the adjacent obturators 30 and 30, g is formed between the upper and lower adjacent plugs 30 and 30, and a plurality of spaces 31 which are independent from each other are formed in the longitudinal direction. Further, the obturators 30 and 30 are disposed such that at least one outer tube discharge port 25 and inner tube injection port 28 are disposed in each space 31. The injection pipe device 20 having the above configuration is used, and at the time of injection, the outer tube 21 and the outer tube 21 are first. The gap of the formation 23 is injected into the casing mortar 32 to seal the gap. Next, the injecting liquid is introduced from the line 22a of the inner tube 22, and the injection liquid is sprayed from the ejection outlets 28, 28, . . . 28 of the inner tube 22 into the spaces 31 and 31 of the φ as indicated by the arrows, so that the infusion liquid passes again. The discharge port 25 of the outer tube 21 located in each of the spaces 3 1 , 3 1 · • 31 pushes the rubber sleeve 26 away, cuts into the casing mortar 32 and then infiltrates into the formation 23 . However, the obturator 30 present in the injection tube 20 of the above-described prior art is constituted by a rubber band. Therefore, the inner tube 22 cannot be moved, and the obturator cannot be formed into a long size. It is impossible to carry out a composite injection formed by the overlapping work of the turbid mortar and the permeable mortar. Further, when the load of the earth pressure causes the above-described conventional injection pipe 20 to be deformed, the inner pipe becomes completely incapable of moving. -5- (3) 1310062 [Patent Document 1] Japanese Patent No. 2772637 [Summary of the Invention] [Problems to be Solved by the Invention] Accordingly, the problem to be solved by the present invention is to use three or more expansion and contraction stoppers. Instead of the rubber crucible as an obturator, in order to improve the shortcomings of the above-mentioned conventional techniques, a formation injection method is provided in which the obturator is formed into a long size, and the outer tube discharge port can be blocked by expanding the outer tube. In part, and by allowing the shrinkage to form, the inner tube can be moved up and down in the outer tube, thereby making it possible to not only make the composite injection formed by the superposition of the rapid setting mortar and the permeable mortar, but also from the plural The tube spit outlet is simultaneously injected. [Means for Solving the Problem] In order to solve the above problems, the formation injection method of the present invention is characterized in that φ is an outer tube having a plurality of outer tube discharge ports at different positions in the axial direction in the formation, and In the tube, three or more expansion and contraction stoppers are inserted at different positions in the longitudinal direction, and an inner tube having an inner tube discharge port is provided between the expansion and contraction stoppers adjacent to each other, and the fluid is sent to the above three or more. The expansion and contraction device expands the expansion and contraction device to form two or more outer tube inner spaces between the expansion and contraction stoppers adjacent to each other, and the injection liquid passes through the inner tube inner space from the inner tube discharge port And the outer tube spit outlet is simultaneously injected into the ground. Further, in order to solve the above problems, the formation injection method of the present invention is characterized in that an outer tube having a plurality of outer tube discharge ports at different positions in the axial direction is provided in the formation. In the outer tube, three or more expansion and contraction plugs are inserted at different positions in the longitudinal direction, and an inner tube having an inner tube discharge port is provided between the expansion and contraction stoppers adjacent to each other, and the fluid is sent into the above More than three expansion and contraction devices expand the expansion and contraction device to form two or more outer tube inner spaces between the expansion and contraction stoppers adjacent to each other, and the injection liquid passes through the outer tube discharge port. The inner space of the tube and the outer tube discharge port are simultaneously injected into the ground layer, and then the fluid is discharged from the expansion and contraction plug to shrink the expansion and contraction device, and the inner tube is moved to match the outer tube discharge port to move the other outer tube discharge port to move. After injecting into the platform, the expansion and contraction device is expanded to form an inner space of the outer tube, and the same operation is repeated to inject the injection liquid into the formation simultaneously. Further, in order to solve the above problems, the formation injection method of the present invention is characterized in that an outer tube having a plurality of outer tube discharge ports at different positions in the axial direction is provided in the formation, and the outer tube is inserted in the outer tube. There are three or more expansion and contraction obstructions at different positions in the long direction, and the inner tube discharge ports between the expansion and contraction stoppers adjacent to each other are a plurality of inner tubes respectively located at different positions, and φ feeds the fluid into the above three More than one expansion and contraction device, the expansion and contraction device is expanded to form two or more outer tube inner spaces between the expansion and contraction stoppers adjacent to each other, and the injection liquid is passed through the outer tube from the inner tube discharge port In addition, in order to solve the above problems, the formation injection method of the present invention is characterized in that a plurality of outer tube discharge ports are provided in different positions in the axial direction in the formation. The outer tube is inserted into the outer tube and has three or more expansion and contraction obstructors at different positions in the longitudinal direction, and the inner tube discharge ports between the expansion and contraction stoppers adjacent to each other are respectively located at different positions. plural The inner tube (5) 1310062, the fluid is sent to the three or more expansion and contraction plugs to form an expansion to be in the outer space of the outer tube of the expansion and contraction device adjacent to each other, and the injection liquid is discharged from the inner tube through the tube discharge port simultaneously The formation is injected, and then shrinkage is formed from the expansion and contraction plug, and the plurality of inner tubes are moved to match the other outer tube discharge ports to move the injection platform to expand to form the inner space of the outer tube, and the same operation is repeated in the φ formation. [Effect of the Invention] The present invention has three 'long-distance to different positions, and there will be an inner tube spouting between these expansion and contraction devices'. The fluid is sent to the expansion and contraction device to make the expansion and contraction abut each other. Two or more inner tube discharge ports are formed between the plugs to allow the injection liquid to pass through the inner space of the outer tube and into the ground layer. Further, the expansion and contraction are discharged from the expansion and contraction device, and the inner tube is moved to the other state to expand the expansion and contraction device, and the same is repeated. Therefore, even if the obturator is formed into a long-sized fluid to be shrunk, the inner tube can be made upward, and the expansion porter can be injected while sealing the outlet of the outer tube. Therefore, the coagulation is performed. Composite injections formed by the graying operation are made possible. Between the expansion and contraction, two or more outer tubes are formed in the outer space, and the outer plug is discharged to discharge the inner tube discharge port, so that the expansion and contraction device simultaneously injects the injection liquid into the above expansion and contraction. The inner tube of the obturator port is inserted into the outer tube to form an expansion, so that the inner space of the outer tube is injected from the outer tube and the body is injected into the platform after the expansion of the obturator shape, and the injection liquid is injected simultaneously, but Discharge the lower free movement of the obturator. Further, a part of the slurry can be weighed from the slurry and the permeable mortar. (6) 1310062 [Embodiment] [Best Embodiment of the Invention] Hereinafter, the present invention will be described in detail using an attachment drawing. Figure 1 is a cross-sectional view showing the construction steps of the formation injection method of the present invention. Fig. 2 is a cross-sectional view showing the state in which the fluid is discharged from the expansion and contraction obstruction to move the inner tube to the other injection platform. Fig. 3 is a cross-sectional view showing a state in which the expansion and contraction plug of Fig. 2 is expanded and injected from another injection platform. Fig. 4 is a cross-sectional view showing the state in which a plurality of inner tubes are used. Fig. 5 is a cross-sectional view showing the state in which the fluid is discharged from the expansion and contraction plug of Fig. 4 to move the plurality of inner tubes to the other injection platforms. Fig. 6 is a cross-sectional view showing a state in which the expansion and contraction plug of Fig. 5 is inflated and injected from another injection platform. Figure 7 is a cross-sectional view showing the state of the outer tube and the expansion of the obturator. Fig. 8 is a cross-sectional view showing the state in which the fluid is discharged from the expansion and contraction plug of Fig. 7 to move the plurality of inner tubes to the other injection platforms. Fig. 9 is a cross-sectional view showing a state in which the expansion and contraction plug of Fig. 8 is expanded and injected from another injection platform. Figure 10 is a cross-sectional view of the injection tube actually used. Figure 11 is a cross-sectional view of a conventional injection tube. As shown in Fig. 1, the present invention firstly provides an outer tube 3 having a plurality of outer tube discharge ports 2, 2, and 2 at positions different in the axial direction in the formation 1. Although the installation work of the outer tube 3 in the formation 1 is not shown, a drilling hole is formed in the formation 1, and the outer tube 3 is inserted into the drilling hole to perform an installation operation. The outer tube spouts 2, 2, .2 are covered by a rubber sleeve 4, respectively. Next, the inner tube 5 is inserted into the outer tube 3. The inner tube 5 has three or more expansion and contraction seals 9-(8) 1310062 which are formed at intervals in the outer long direction, and then moves the injection platform. In the third figure, the injection is solid. A long-lasting permeable mortar is used to make composite injection possible. Fig. 4 is a cross-sectional view showing an example in which a plurality of inner tubes 5 are used. As shown in Fig. 4, in the same manner as in the first embodiment, the outer tube 3 having a plurality of outer tube discharge ports 2, 2·· 2 at positions different in the axial direction is provided in the formation 1, and the inner tube of the plurality of tubes is provided. 5, 5·· 5 is inserted into the outer tube 3. The inner tubes 5, 5·· 5 of the plurality of branches are three or more φ expansion capstans 6 and 6·6 in the same position in the longitudinal direction, and the inner tube discharge ports 7 are respectively provided. 7 and _7 are configured to be located between the expansion and contraction plugs 6, 6 respectively. Next, as shown in Fig. 4, the fluid is sent to three or more expansion and contraction plugs 6, 6 • 6 to expand to form two or more between the expansion and contraction plugs 6 and 6 adjacent to each other. The inner tube inner space 9, 9·.9 is injected into the ground layer from the inner tube discharge port 7 through the outer tube inner space 9 and the outer tube discharge port 2, thereby forming the consolidation region 10. Next, as shown in Fig. 5, the φ fluid is discharged from the expansion and contraction plugs 6, 6··6 to form a contraction, and the inner tube 5 is freely moved. Then, the inner tubes 5, 5·· 5 of the plurality of branches are moved upward, and the inner tube discharge ports 7 are respectively fitted to the other outer tube discharge ports to move the injection platform, and as shown in Fig. 6, the expansion and contraction are sealed. The tubes 6, 6·6 are expanded to form the inner space 9 of the outer tube, and the same operation is repeated to simultaneously inject the injection liquid into the formation, so that the consolidation regions 10 are overlapped. Fig. 7 is a cross-sectional view showing an example in which the outer space 9 of the outer tube is further provided with an expansion/contractor in the space. As shown in Fig. 7, as in Fig. 1 or Fig. 4, in the formation 1, the position in the axial direction is different -11 - (9) 1310062 has a plurality of outer tube discharge ports 2, 2 · The outer tube 3' of 2 inserts a plurality of inner tubes 5, 5·.5 into the outer tube 3. The inner tubes 5, 5. .5 of the plurality of branches are three or more expansion and contraction devices 6, 6··6 at different positions in the long direction, and are expanded and contracted in the space by the obturator 1 1 Each of the spaces 12 and 12 formed by the partitions is provided with an inner tube discharge port 7. The inner tube discharge port may not be an injection port or a fine hole. Next, as shown in Fig. 7, three or more expansion and contraction plugs 6, φ 6 · · 6 and the space expansion and contraction device 11 are supplied with fluid to form an expansion, from the expansion and contraction device 6 and the space. The inner tube discharge port 7 of the space 1 formed between the inner expansion and contraction plugs 1 1 allows the injection liquid to be injected into the formation 1 through the space formed by the partition and the outer tube discharge port 2, thereby forming a consolidation. Area 1 〇. Next, as shown in Fig. 8, the fluid is discharged from the expansion and contraction plugs 6, 6, and 6 and the air-slot expansion and contraction device 11 to form a contraction, and the inner tube 5 is freely moved. Then, the inner tubes 5, 5··5 of the plurality of branches are moved upward, and the inner tube discharge ports 7 are respectively fitted to the other outer tube discharge ports to move the injection platform, and as shown in Fig. 9, the expansion and contraction is performed. The plugs 6, 6·6 expand and the in-slot expansion and contraction device 11 expand to form a space 12 formed by the partitions, and the same operation is repeated to simultaneously inject the injection liquid into the formation 1, and the consolidation regions 10 are overlapped. In addition, in FIG. 4, in the outer tube 3, an obturator flow path 8 which is connected to the expansion and contraction plug 6 is inserted, and the fluid is sent to the expansion and contraction device 6 through the obturator flow path 8. The obturator forms an expansion or discharges fluid from the expansion and contraction device 6 to cause the obturator to contract. In addition, in FIG. 7, the obturator flow path 8 -12- (10) 1310062 which communicates with the expansion and contraction plug 6 and the expansion/contractor 11 in the space is inserted into the outer tube 3 through the obturator. The flow passage 8 feeds the fluid into the expansion sealer 6 and the expansion and contraction device 11 in the space to expand the closure or to discharge the fluid from the expansion and contraction plugs 6, 11 to cause the obturator to contract. Figure 10 is a cross-sectional view showing the actual use of the site at the site. The method of the present invention is to use the injection pipe to perform the formation injection method. In addition, the injection liquid (liquid A, liquid B) is not shown. Self-control injection liquid feeding device, from the injection liquid tank 15 through the pump P pressure φ P and the flow meter F to the injection liquid flow path 17, 18 of the inner tube 5, the liquid A liquid is respectively from the respective inner tube The discharge ports 7, 7 are ejected, and then passed through the outer tube inner space 9 and injected into the formation 1 from the outer tube discharge port. Next, the tube 5 is moved upward, and the liquid A and the liquid B are injected into the ground 1 in the same manner as described above. [Industrial Applicability] The formation injecting method of the present invention is that the plugging device is formed by using a swellable occluder to expand and contract the expansion and contraction device by using φ, that is, to form the occluder into a size, By expanding it, it is possible to block a part of the outer tube discharge port, and by allowing it to contract, it is also possible to move the inner tube up and down in the outer tube, and by having three or more expansion and contraction devices, Since it is possible to simultaneously inject from two or more outer tube discharge ports, the composite injection formed by the superposition of the rapid setting mortar and the permeable mortar is possible, and the utilization is high in the field of the injection engineering. [Simple description of the diagram] The plug is a pipe dynamometer, the inner layer is the long part, and the permeation layer is -13- (11) 1310062. Figure 1 is a cross-sectional view for explaining the construction steps of the formation injection method of the present invention. Fig. 2 is a cross-sectional view showing the state in which the fluid is discharged from the expansion and contraction obstruction to move the inner tube to the other injection platform. Fig. 3 is a cross-sectional view showing a state in which the expansion and contraction device of Fig. 2 is expanded and injected from another injection platform. Fig. 4 is a cross-sectional view showing the state in which a plurality of inner tubes are used. Fig. 5 is a cross-sectional view showing the state in which the fluid is discharged from the expansion and contraction plug of Fig. 4 to move the plurality of inner tubes to the other injection platforms. Fig. 6 is a cross-sectional view showing a state in which the expansion and contraction device of Fig. 5 is expanded and injected from another injection platform. Fig. 7 is a cross-sectional view showing the state in which the inside of the outer tube is further provided with the expansion and contraction device. Fig. 8 is a cross-sectional view showing the state in which the fluid is discharged from the expansion and contraction plug of Fig. 7 to move the plurality of inner tubes to the other injection platforms. Fig. 9 is a cross-sectional view showing a state in which the expansion and contraction device of Fig. 8 is inflated and injected from another injection platform. Figure 10 is a cross-sectional view of the injection tube actually used. Figure 11 is a cross-sectional view of a conventional injection tube. [Explanation of main component symbols] 1 : Formation 2 : Outer pipe discharge port 3 : Outer pipe - 14 - (12) (12) 1310062 5 : Inner pipe 6 : Expansion and contraction device 7 : Inner pipe discharge port 8 : Sealing Flow path 9: outer tube inner space 1 0 : consolidation area 1 1 : space expansion and contraction device 1 2 : space formed by the partition