A6 B6 814576 五、發明說明（/ ) 〔産業上之利用領域〕 本發明偽有鬪一種藉著將硬化薄I哦射注入於地中，而 在地中造成椿狀之硬化改良體，以強化地盤之地盤改良工 法及裝置。 > 按，在地中，由噴射部將水泥漿液等之硬化劑的溶液 噴射注入，並一面旋轉喷射部一面逐漸地將水搶拉回，而 在地中造成椿狀硬化改良體之地盤改良工法，已由業界所 開發問世。 此一工法之問題點係在於，在透水性不佳之地盤等中 ,由於溶液注入地點之地盤内壓上昇，地表面將會隆起而 對附近之構造物産生不良的影遒，此外，另一問題甌偽在 於，改良體之造成直徑必須限制得較小。 迄今為止（包含申請人之申請前案），為了防止注入 地點之地盤内壓的上昇，係在注入桿上設置吸入口，並透 過吸入口將過剩溶液或泥漿等的排泥，由注入地點排出至 地表外，而嘗試將内部壓力予以解放。 〔發明所欲解決之課題〕 經濟部屮央標T-t?於工消赍合作杜卬製 然而，根據習用之技術，將排泥之排出量，配合硬化 劑之注入量或地盤之性狀等充份地予以控制此舉，並非可 能，而且，開口注入桿上之吸入口也易於阻塞，而使起初 所期待之機能受損，是為其決定性的問題點。 本發明傺有鑑上述問題而開發完成者，其目的偽在提 供一種可防止阻塞，且可將注入量及排泥置作最適當控制 本紙張疋度適用中B困家樣孕（CNS) 4規恪（210x297公釐） A6 B6 214576 五、發明説明（ 之利用高壓噴射的地盤改良工法及裝置。 〔課題之解決手段〕 為了逹成上述目的，根據本發明之地盤改良工法，僳 藉注入桿及外套管之前端部所設的讚掘用鑽頭讚掘~對象地 盤，並將硬化劑注入桿插入至一定深度為止之後，由該注 入桿將硬化劑之溶液持缠噴射之，並一面旋轉上述注入桿 ，一面逐漸將該注入桿拉回，而據以造成地盤改良齷之地 盤改良工法，其特徽傜在： 在上述硬化劑之注入過程中，配合地中之内壓，以真 空吸引裝置，由上述硬化劑之注入部的附近位置，經由排 出路徑將排泥予以吸出者。 較好的是，上述注入桿之外周部備有外套管，以上述 注入捍與外套管間之間陳作為上述排泥的排出路徑。 當上述排出路徑阻塞時，係朝上述注入捍之前端侧， 對上述排出路徑内送出加壓水，或是反轉上述其空吸引裝 置之輸出，以該真空吸引裝置朝上述注入桿之前端側，將 加壓空氣送出至排出路徑内。 又，為了達成上述目的之與本發明有關的地盤改良裝 置，係在地中，由注入桿將硬化劑之溶液持缠噴射之，並 一面旋轉上述注入捍，一面逐漸將該注入桿拉回，而據以 造成上述地盤改良體之地盤改良装置，其特擻像在： 上述注入捍像由外套管所圍境，而該注入捍與外套管 間之間隙，傜作為排泥之排出路徑，又，在上述排出路徑 表紙《尺度逋用中8 a家標iMCNS)甲4規格（210X297公釐） 請 先 聞 讀， 背 面 I 事 項 再 填 頁 經濟部屮央標f-局：®工消费合作ft印製 A6 B6 214576 五、發明說明（> ) 上，係介以配管而遽接有真空吸引裝置者。 較好的是，設有可朝上述注入桿之前端側在上述排出 經路内送出加壓水之幫浦，該幫浦偽藉切換閥而與上述宾 空吸引裝置擇一地作用於上述排出經路。此外，上述真空 吸引裝置最好具有输出之反轉裝置，而可朝上述注入桿之 前端側在上述排出路徑内送出加壓空氣。 〔作 用〕 藉著將排泥配合其地内壓以真空吸引裝置適當地予以 吸出，可在各種之條件下，使地内壓維持於適當之值，同 時可使硬化劑之密度提高。 葙箸將加壓水或加®空氣輸送於注入桿之前端側方向 ,換言之，輸送於與吸引方向相反之方向，以藉著吸引使 得阻塞之排泥方便地排出，而使阻塞現象消除。 〔實施例〕 以下，茲將本發明之實施例，佐以圖面進行說明。 圖1係本發明之一實施例施工設備的概略構成圈•画 2偽使用於該設備中之注入桿組立體要部的斷面圖。 較濟部t央櫺;11-功肖工消^合作杜印製 圖面中，1 1僳注入管組立體，注入管組立鼹1 1係 由内部之注入桿1 2與隔以間眯圔繞於其外側之外套管1 3所構成。注入管组立體1 1傺由前端之噴射部14,中 間之軸部1 5，以及後端之旋轉部1 6所構成。注入管组 立醱1 1之軸部1 5,僳支持於驅動装置17,可在其長 軸向之周圍旋轉驅動，並沿其畏軸向進退驅動。 -5- 本纸Λ尺度適用中a困家標孕(CMS) 規格(210x297公釐) 214576 A6 B6 五、發明説明（士） 如丽2所示，注入捍12像形成由内管18與外管1 9所構成之二重管構造。内管18之前端面傜穿設有開口 部20,藉著將球形之閥體2 1置入，可使開口部20成 閉鎖狀。又，内管18前端附近之側壁部上，突出'形成有 硬化劑之噴射噴嘴部22。另一方面，外管19之前端也 呈封閉狀，其前端附近之側壁部上，穿設有氣醣噴射口2 3,與噴射口23之緣部保持間隙之噴射喷嘴部22,傺 位於該噴射口 2 3内。 外套管13係以較注入桿12之喷射哦嘴部22、噴 射口23稍後退於基端側之位置為其終绱，藉著將渠等連 结成伸長於必要長度之狀態，可使後端部露出於外部。· 又，外套管1 a之前端外周部，安裝有纘睡用鑽頭2 4a。不過，注入桿3 2本身上也安装有纘掘甩錤頭24 b,以兩値鑽掘用鑽頭持續旋轉，將地盤挖掘至一定之深 度，然後，再由設於同一捍之硬化劑噴射噴嘴22,噴射 以包含空氣之硬化劑。 經濟部屮央櫺';|1-局*5工消^合作汰印'« 另一方面，旋轉部16具有：一與注入捍12之内管 1 8的内側連通之第一連接管2 5, —連通於内管18與 外管1 9的間隙之第二連接管26,以及一連通於注入捍 1 2與外套管1 3間的間隙之第三連接営2 7。 如圖1所示，空氣壓縮機2 8係連接於上述第二連接 管26。又，高壓灌漿幫浦29,僳連接於上述第一連接 管25。該高壓灌漿幫浦29之低®側的配管30,係連 本纸張尺度適用中8困家播準（CNS) T4規格（210x297公釐) A6 B6 S14576 五、發明説明（(） 接於第一切換閥31,此一切換閥31像介以配管32連 接於灰漿混合器33,並介以配管34連接於配設在水槽 35内之水中幫浦36。因此，藉箸此一第一切換閥3 1 之切換，灰漿温合器3 3或是水中幫浦36中之一>者，傑 可連接於高®灌漿《浦2 9。 上述第三連接啻27，傺連接於第二切換閥37,此 一第二切換閥37,傺介以配管38連接於真空吸引装置 39,並介以配管40、 34而連接於上述水中幫浦36 。是以，藉著此一第二切換閥37之切換，真空吸引装置 39或水中胬浦36中之一者，係可連接於第三連接管2 7。真空吸引裝置3 9之配管4 1 ,偽連接於排泥槽4 2 〇 、 於此一施工設備中，藉著空氣壓縮機之作動，壓缩空 氣會由第二連接管26被送至注入桿12之内管18與外 管19之間，並由噴射口 23被噴射於注入桿12之長軸 的直角方向。另一方面，高壓灌漿幫浦29之高壓的输出 ，亦邸由灰漿混合器33而來之水泥漿液等之硬化劑或是 水槽35内之水，會由第一連接管25送至注入捍12之 内管18内，並由位於噴射口23内側之喷射噴嘴部22 ，伴同上述壓縮空氣，噴射於注入捍12之長軸的直角方 向。 當第二切換閥3 7與配管4 0及第三連接管2 7連通 時，藉箸水中幫浦36之作動，水會被送人注人桿12與 -7- 本纸張尺度適用中BS家標孕(CNS)T4規格(2丨〇父297公龙） {請先閲讀背面之注意事項再填寫本页) •装· 經濟部屮央梂';11-局負工消€:?合作沐卬災 •線· A6 B6 214576 五、發明説明（k) 外套管13之間，並朝注入捍12之前绱方向哦射。另一 方面，當第二切換閥37與配管38及第三連接管27連 通時，真空吸引裝置39會由注入桿12與外套管13間 將排泥吸上，並介以配管4 1將其收容於排泥槽4 4。再 者，真空吸引装置3 9具有可將其輸出反轉之反轉装置（ 圖未示），藉著此一反轉裝置之作動，由真空吸引装置3 9,可將壓縮空氣供給至第三建接管17。 根據本工法，地盤之預備鑽掘，像藉著：以第一切換 閥3 1之切換，由高壓灌漿常浦29將加®水經由内管1 8予以供給至注入桿12之前端而達成。依此，不僅可使 造成之直徑更大，同時可使硬化劑混入排泥中之比例極少 化。 其次，在造成改良體時，傜藉第一切換閥3 1之切換 ，使由灰漿混合器33而來之水泥漿液，由高壓«浦29 加壓，而介以第一建接管25,由注入捍12之噴射噴嘴 部22噴射之。在此之同時，又由氣體壓缩機28,將睡 縮空氣由注入捍1 2之噴射口 2 3噴射。 經濟部十央標f--e,®:工i/iif合作fi卬¾ 此外，又將第二切換閥37換於真空吸引裝置39側 ，將排泥吸出至排泥鑽頭42。於此一吸引中，可依與上 述水泥漿之IE送置或地盤之性狀，配合地中内壓，而使排 泥量獲得控制。 另一方面，在排泥之排出經路阻塞時，切換第二切換 閥37,將加®水由水中幫浦36朝注入桿12之前端側 表纸張尺度適用中aa家標孕（CNS)T4規格（210x297公ft)A6 B6 814576 V. Description of the invention (/) [Industrial application field] The present invention pretends to be a kind of hardened improved body that injects a hardened thin I into the ground and causes a stump-like hardening in the ground to strengthen Construction methods and equipment for construction sites. > Pressing, in the ground, the spraying part injects a solution of hardener such as cement slurry, and gradually pulls back the water while rotating the spraying part, resulting in the improvement of the site of the stiffened and improved body in the ground The construction method has been developed and published by the industry. The problem with this construction method is that, in a site with poor water permeability, the internal pressure of the site at the location where the solution is injected rises, and the ground surface will swell, which will adversely affect nearby structures. In addition, another problem Ou pseudo is that the diameter of the modified body must be limited to a small size. So far (including the applicant's previous application), in order to prevent the internal pressure of the injection site from rising, a suction port is provided on the injection rod, and the excess solution or mud and other mud are discharged through the suction port and discharged from the injection site To the surface, try to liberate the internal pressure. [Problems to be solved by the invention] The Ministry of Economy ’s central standard, Tt ?, is produced in cooperation with the Consumer Industry Group. However, according to the conventional technology, the discharge amount of sludge is combined with the injection amount of hardener or the properties of the site. It is not possible to control this action, and the suction port on the open injection rod is also easy to block, and the function that was originally expected to be damaged is its decisive problem. The present invention was developed in light of the above-mentioned problems, and its purpose is to provide a method that can prevent clogging, and can set the injection volume and sludge discharge to be the most appropriate control. This paper is suitable for home-like pregnancy (CNS) 4 Regulations (210x297 mm) A6 B6 214576 V. Description of the invention (The construction method and device of site improvement using high-pressure injection. [Solution to the problem] In order to achieve the above purpose, according to the construction site improvement method of the present invention, borrow the injection rod And the digging drill set at the front end of the outer sleeve to dig into the target site, and after inserting the hardener injection rod to a certain depth, the injection rod will hold and spray the hardener solution and rotate the above The injection rod gradually pulls the injection rod back, and the construction method of the construction site that caused the improvement of the construction site is characterized by the following characteristics: During the injection process of the above hardener, the internal pressure in the ground is used to attract the device with vacuum The person who sucks the mud out through the discharge path from the vicinity of the injection part of the hardener. Preferably, the outer peripheral part of the injection rod is provided with an outer sleeve. The space between the injection pipe and the outer casing serves as the discharge path for the sludge discharge. When the discharge path is blocked, the pressurized water is sent into the discharge path toward the front end of the injection pipe, or the empty space is reversed. The output of the suction device uses the vacuum suction device to send the pressurized air into the discharge path toward the front end side of the injection rod. In addition, in order to achieve the above object, the site improvement device related to the present invention is located in the ground, by The injection rod holds and sprays the solution of the hardener, and while rotating the injection protection, the injection rod is gradually pulled back, and the construction improvement device of the construction improvement body according to the above features is as follows: Like the boundary surrounded by the outer casing, and the gap between the injection guard and the outer casing, Meng serves as a discharge path for the sludge discharge. In addition, in the above discharge path, the paper "Standard IMCNS in the standard 8a iMCNS) A 4 specifications (210X297 Mm) Please read it first, and then fill in the I item on the back page. The F-Bureau of the Ministry of Economic Affairs: A6 B6 214576 printed by the ft. Of Industrial and Consumer Cooperation V. Invention description (>) Although the vacuum suction device is connected. Preferably, a pump capable of sending pressurized water in the discharge path toward the front end side of the injection rod is provided, and the pump acts on the discharge selectively by the switching valve and the air suction device By the way. In addition, it is preferable that the vacuum suction device has an output reversing device, and pressurized air can be sent out in the discharge path toward the front end side of the injection rod. [Function] By matching the internal pressure of the sludge to the vacuum suction device to properly suck it out, the internal pressure of the ground can be maintained at an appropriate value under various conditions, and the density of the hardener can be increased at the same time. Zongguo delivers pressurized water or Air Plus in the direction of the front end of the injection rod, in other words, in the direction opposite to the suction direction, so that the blocked sludge can be easily discharged by suction, and the blocking phenomenon is eliminated. [Examples] Hereinafter, examples of the present invention will be described with reference to the drawings. Fig. 1 is a schematic diagram of the construction equipment of one embodiment of the present invention. Circle 2 is a cross-sectional view of a three-dimensional main part of an injection rod set used in the equipment. More economical department; 11-Gong Xiao Gong Xiao ^ In cooperation with the du printing drawing, 1 1 injection pipe group is three-dimensional, and the injection pipe group is formed with a mole 1 1 consisting of an injection rod 12 inside and a gap between them. The casing 13 is formed around the outside of the casing. The three-dimensional injection pipe assembly 11 is composed of a spraying portion 14 at the front end, a shaft portion 15 at the middle, and a rotating portion 16 at the rear end. The injection tube assembly stands the shaft portion 15 of the shaft 11 5 and supports the driving device 17, which can be driven to rotate around its long axis and drive forward and backward along its axis. -5- The paper Λ scale is suitable for a sleepy family standard pregnancy (CMS) specification (210x297 mm) 214576 A6 B6 5. Description of the invention (Shi) As shown in Li 2, the injection 12 is formed by the inner tube 18 and the outer The double-tube structure composed of tube 19. An opening 20 is provided through the front end surface of the inner tube 18. By inserting the spherical valve body 21, the opening 20 can be closed. In addition, on the side wall portion near the front end of the inner tube 18, a spray nozzle portion 22 formed with a hardener protrudes. On the other hand, the front end of the outer tube 19 is also closed, and the side wall portion near the front end is provided with an air sugar injection port 23, and an injection nozzle part 22 that maintains a gap with the edge of the injection port 23. Inside the injection port 2 3. The outer sleeve 13 is the final position of the nozzle 22 and the injection port 23 that are later retracted to the base end side of the injection rod 12 by connecting the canal and the like to a state that is elongated to a necessary length, which can be used The end is exposed to the outside. · In addition, the outer periphery of the front end of the outer sleeve 1 a is equipped with a sleep bit 24 a. However, the injection rod 3 2 itself is also equipped with a boring head 24 b, which continuously rotates with two-bit drilling bits to dig the site to a certain depth, and then, the hardener spray nozzles provided on the same arm 22. Spray with hardener containing air. "Ministry of Economics, Yan Yang '; | 1- Bureau * 5 Work Consumers ^ Cooperative Printing" «On the other hand, the rotating part 16 has: a first connecting pipe 2 5 that communicates with the inside of the inner pipe 18 of the injection guard 12 5 -A second connecting pipe 26 connected to the gap between the inner pipe 18 and the outer pipe 19, and a third connecting pipe 2 7 connected to the gap between the injection pipe 12 and the outer pipe 13; As shown in FIG. 1, the air compressor 28 is connected to the second connecting pipe 26 described above. In addition, the high-pressure grouting pump 29 is connected to the first connecting pipe 25. The high-pressure grouting pump 29 has a piping 30 on the low® side, which is connected to this paper standard. It is suitable for 8-sleeved home broadcast standards (CNS) T4 specifications (210x297 mm). A6 B6 S14576 5. Description of the invention (() A switching valve 31, the switching valve 31 is connected to the mortar mixer 33 through the piping 32, and is connected to the water pump 36 disposed in the water tank 35 through the piping 34. Therefore, by this first switching For the switching of valve 3 1, the mortar thermostat 3 3 or one of the water pumps 36 > Jie Ke is connected to the high ® grout "Pu 2 9. The third connection above is 27, Ye is connected to the second switch The valve 37, this second switching valve 37, is connected to the vacuum suction device 39 via the piping 38, and is connected to the water pump 36 via the piping 40, 34. Therefore, by this second switching valve Switching between 37, one of the vacuum suction device 39 or the water pump 36 can be connected to the third connection pipe 27. The pipe 4 1 of the vacuum suction device 39 is pseudo-connected to the sludge tank 4 2. In this construction equipment, by the action of the air compressor, compressed air will be sent from the second connecting pipe 26 to the inner pipe 18 and the outer pipe 19 of the injection rod 12 At the right angle of the long axis of the injection rod 12 from the injection port 23. On the other hand, the output of the high pressure of the high-pressure grouting pump 29 is also the hardener of the cement slurry and the like from the mortar mixer 33 Or the water in the water tank 35 will be sent to the inner tube 18 of the injection cylinder 12 through the first connecting pipe 25, and will be sprayed on the injection cylinder 12 by the injection nozzle portion 22 located inside the injection port 23 together with the above-mentioned compressed air The direction of the long axis is at right angles. When the second switching valve 3 7 communicates with the piping 40 and the third connecting pipe 27, the water will be sent to the injection rods 12 and -7 by the action of the pump 36 in the water The paper standard is applicable to the BS home standard pregnancy (CNS) T4 specification (2 fathers 297 male dragons) (please read the precautions on the back and then fill out this page) • Installed · Ministry of Economics 汮 央 梂 '; 11-bureau negative Work Consumers € :? Cooperation Mu Bing Disaster • Line · A6 B6 214576 V. Description of the invention (k) Between the outer casing 13 and the shot in the direction of before the injection into the defender 12. On the other hand, when the second switching valve 37 communicates with the pipe 38 and the third connecting pipe 27, the vacuum suction device 39 will suck up the sludge from the injection rod 12 and the outer casing 13 and pass it through the pipe 41 Contained in the sludge tank 4 4. Furthermore, the vacuum suction device 39 has a reversing device (not shown) which can reverse its output. By the action of this reversing device, the vacuum suction device 39 can supply compressed air to the third Construction takes over 17. According to this method, the preparatory drilling of the site is achieved by switching the first switching valve 31 to supply high-pressure grouting Changpu 29 with water to the front end of the injection rod 12 through the inner tube 18. In this way, not only can the resulting diameter be larger, but also the proportion of hardener mixed into the sludge can be minimized. Secondly, when the improved body is created, by switching the first switching valve 31, the cement slurry from the mortar mixer 33 is pressurized by the high pressure «Pu 29, and the first build-up pipe 25 is injected by the injection The jet nozzle 22 of the guard 12 jets it. At the same time, the air compressor 28 injects the sleep air from the injection port 23 injected into the cylinder 12. The tenth central standard of the Ministry of Economic Affairs f--e, ®: work i / iif cooperation fi 哬 ¾ In addition, the second switching valve 37 was replaced with the vacuum suction device 39 side, and the sludge was sucked out to the sludge drill 42. In this attraction, the amount of sludge discharged can be controlled in accordance with the above-mentioned cement slurry IE delivery or the properties of the site and the medium internal pressure. On the other hand, when the discharge path of the sludge is blocked, the second switching valve 37 is switched, and the water is added from the water pump 36 to the front side of the injection rod 12. The paper surface size is applicable to the CNA standard T4 size (210x297 ft)
6 6 A B 214576 五、發明說明（7) 送出至排出經路内。又，依場合之需要，可將真空吸引装 置39之輸出反轉，以真空吸引裝置39將壓縮空氣朝注 入捍1 2之前端側送出至排出經路内。具髖言之，藉著將 加壓水或壓縮空氣，輸送於注入捍1 2之前端側方1¾，換 言之，输送於與吸引方向相反之方向，可藉吸引將阻塞之 排泥容易地排出，而解除阻塞。 〔發明之效果〕 根據以上述實施例具腥說明之本發明，在硬化劑之注 入過程中，可配合地中内壓，藉著由真空吸引装置或其輸 出反轉装置所達成之阻塞防止，而由硬化劑注入部附近之 位置經由排出路徑，簡易、迅逮且確實地將排泥吸出，因 此，可在各種條件下，適當正確地維持地中内壓。依此， 不致造成地表面隆起之弊端，可造成大徑且大深度之改良 體。 〔圖面之簡單說明] 圔1像本發明一實施例施工設備之概略構成画。 圖2偽本發明一實施例施工設備所用之注入捍组立體 要部的斷面圖。 〔符號之說明〕 11 注入管組立髏 12 注入捍 13 外套管 14 噴射部 本纸張尺度適用中8因家榇孕（CNS)f 4規格（210x297公釐） 214576 A6 B6 經濟部屮央標-"局肖工消资合作杜印災 五、發明說明（go 1 5 軸部 16 旋轉部 17 驅動裝置 18 内管 19 外管 2 1 閥醱 22 硬化劑之噴射噴嘴部 2 3 空氣噴射口 24a, 24b...讚掘用鑽頭 2 5 第一連接管 2 6 第二連接管 2 7 第三連接管 2 8 氣體壓縮機 2 9 高壓灌漿幫浦 3 1 第一切換閥 3 3 灰漿混合器 3 5 水漕 3 6 水中幫浦 3 7 第二切換閥 39 真空吸引装置 4 2 排泥槽 -10- 本纸張尺度適用中B困家標孕（CNS) T4規格(210X297公釐) (請先聞讀背面之注意事項再填寫本页) .装· •打- •線·6 6 A B 214576 5. Description of the invention (7) Sent to the discharge route. In addition, according to the needs of the occasion, the output of the vacuum suction device 39 may be reversed, and the vacuum suction device 39 may send the compressed air toward the front end side of the injection valve 12 into the discharge path. In other words, by sending pressurized water or compressed air to the side 1¾ before the injection 12 is put, in other words, it is transported in the opposite direction to the suction direction, and the blocked sludge can be easily discharged by suction. And unblock. [Effects of the invention] According to the present invention described in the above embodiment, during the injection of the hardener, the internal pressure can be matched to prevent the blockage achieved by the vacuum suction device or its output reversal device, In addition, the position near the injection part of the hardener passes through the discharge path, so that the sludge is easily, quickly and reliably sucked out. Therefore, it is possible to properly and accurately maintain the internal pressure in the ground under various conditions. According to this, the disadvantages of ground surface bulging will not be caused, and large-diameter and large-depth improved bodies can be caused. [Brief Description of Drawings] Fig. 1 is a schematic configuration drawing of construction equipment according to an embodiment of the present invention. Fig. 2 is a cross-sectional view of a three-dimensional main part of an injection protection group used for construction equipment according to an embodiment of the present invention. [Explanation of Symbols] 11 Injecting tube set 12 Injecting and protecting 13 Outer sleeve 14 Injecting part This paper size is suitable for 8 in-house pregnancy (CNS) f 4 specifications (210x297 mm) 214576 A6 B6 Ministry of Economics Central Standard- " Bureau Xiaogong ’s cooperation with consumers and investors Du Yin disaster 5. Description of invention (go 1 5 Shaft 16 Rotation 17 Drive device 18 Inner tube 19 Outer tube 2 1 Valve 22 22 Injection nozzle of hardener 2 3 Air injection port 24a , 24b ... Drill for drilling 2 5 First connecting pipe 2 6 Second connecting pipe 2 7 Third connecting pipe 2 8 Gas compressor 2 9 High-pressure grouting pump 3 1 First switching valve 3 3 Mortar mixer 3 5 Water Cauldron 3 6 Water Pump 3 7 Second Switching Valve 39 Vacuum Suction Device 4 2 Mud Drainage Tank -10- This paper size is suitable for B Sleeping Home Standard Pregnancy (CNS) T4 Specification (210X297mm) (please first Read the precautions on the back and then fill out this page). Install · • Hit-• Line ·