199916 Λ 6 Β6 經濟部屮央捣準沿Π工消赀合作社印31 五、發明説明（1) 〔技術領域〕 本發明，係關於軟弱地盤之改良或強化工法，持別是 有關在一旦使之放鬆的地盤中，把粘度高或很稠之水条等 的自硬性材料，可說是像塞進似地予以壓入，以設法改良 之工法。 〔先前之技術〕 _做為此種地盤改良工法，已有各種者被知。其代表例 為注入工法。該工法，係如眾所周知，係由插入地盤 中的注入管以低壓將藥液注入者。再者，^時使藥液不擾 私禅盤，而使之浸透壓入做為基本思想。 另一方面，近年來，以噴射水泥漿（fet-grout)工 法為代表的高壓噴射工法逐漸多被使用。該高壓噴射工法 ,係把地盤以水泥漿或水所具有之高壓力一面擾亂，同時 在地盤中把水泥漿注入者。 該高壓噴射工法，極端而言也可以説明地盤的^^^ ^另一方面，做為純粹之攪拌工法，主要是以粘性地盤 為對象，以將具有攪拌葉片的攪拌軸插入在地盤之狀態， 通過其攪拌軸或從另外的供給糸統把水泥条材料供給，以 攪拌葉片一面把地盤攪拌，一面將其攪拌領域以水泥条材 料取代或與砂土攪拌混合者。 然而，在第1的藥液壓入工法，為了進行浸透壓入， 而使用举度低的材料，主要傜使用水玻璃糸之材料，故其 改良強度低，同時也缺乏耐久性。並且，改良強度低的原 (請先閲讀背面之注意事項再填寫本頁) 裝. 本紙張尺度边用中國國家標準(CNS)甲4規格(210x297公及) -3 - 經濟部屮央標準工消赀合作社印!il i 9 9 c# 〇 Λ 6 _B_6 五、發明説明（2) 因，偽不是把地盤以改良材料置換而以浸透注入或割裂注 入為佳，所以每單位容積的改良材料所佔之比例低，而不 均勻也是其原因。 更且把問題點附言時，在通常砂質土層時，雖能進行 浸透注入，但是由注入條件的小差異將變成割裂注入之形 態，常有不能進行浸透注入的情況。另一方面，在注入粘 性土層時，將變成割裂注入，改良材料常會逃抱。因此， 難以將目的之領域確實改良，並且隨著逃跑的材料損失很 多。同時，目的之改良徑無法均勻，常成為樹狀（樹木狀 或脈狀）。 在第2的高壓噴射工法，將會極端，地擾亂地盤，且在 泥渣（slime)處理而要花很多工夫和費用。並且，要使 切削及注入均勻地進行，並充份進行泥渣的排出時，需要 降低改良速度，係很費時間的工法。而且，對於砂質地盤 ,做為強度係以30kg/Cm2以上，粘性地盤時以 10kg/cm2以上為目標，但是，由地盤性狀的強度 之參差及由改良體位置的強度不齊極大是一個問題。特別 是，粘性地盤時，由於切削不充份所致的土塊的拉櫳造成 的參差不齊很嚴重。 第3的攒拌工法，以設備會大型化為大缺點，且在粘 性土層時攪拌效果不太高，因此缺乏改良強度之均勻性。 另一方面，該攪拌工法，俗以如前述的粘性地盤為對象。 雖然對砂質地盤之適用也可能，但是由於攪拌軸及攪拌葉 片對地盤的阻力大，所以除非使用巨大的攪拌手段，否則 (請先閱讀背面之注意事項再填寫本頁) 本紙5良尺度边用中國B家標準（CNS)甲4規格（210x297公及） 一 4 一 189916 Λ 6 136 經濟部小央櫺準杓以工消价合作社印災 五、發明説明（3) 無法適用。 因此，本發明之第1目的，係在提高改良強度及改良 體的均勻性，使之能以簡單且小型之設備進行施工，造成 由壓密效果被限定或只對目的地點的堅固改良體者。 第2之目的，係在使從高壓水噴射噴嘴的高壓水之到 達距離增長，加大改良體的直徑者。， 第3之目的，係在加大改良體之直徑，同時使之成為 均勻的改良徑。 〔發明之掲示〕 在本發明，係從設在插入地盤中的噴射管之尖端部的 高壓液噴射噴嘴把高壓水噴射而一面使對象地盤鬆弛，或 使之鬆弛後，在鬆弛的地盤中把很稠之，理想的是把坍塌 (slump)klg 1 5 c m以下之自硬性材料壓入而造成改良 體。 再者，此時可以由高壓液的噴射把對象地盤鬆弛而泥 土化，由自硬性材料之壓入，把;泥土推高予以排除而造成 改良體。 ~ 更且，可以使由高壓液使地盤鬆弛的時機，與壓入自 硬性材料之壓入時機不同，也可以在噴射注入管的尖端部 形成注出口，在比該注出口靠基端邊設置噴射噴嘴，而在 噴射注入管之拉起過程，使地盤的鬆弛與自硬性材料之壓 入大約同時進行。 從高壓液噴射噴嘴的高壓液之噴射壓力，可以使之成 (請先閱讀背面之注意事項再填寫本頁) 本紙5良尺度逍用中Η國家棕準（CNS)甲4規格（210x297公及） 一 5 — 經濟部十央榣準·u工消"合作社印" 199916 β Λ 6 ___Β_6 五、發明説明（4) 為50kg/cm2 G以上。 使地盤鬆弛的液體，如果在水添加界面活性劑時將使 切削能力提高。 可將被排除的泥土添加在自硬性材料做為改良體之造 成材料。把被排除的泥土分離成上澄液和濃縮泥土，前述 上澄液做為地盤之鬆弛用液，直接或添加在水中再利用比 較理想。前述濃縮泥土可以添加在自硬性材料，做為改良 髏的造成材料再利用。 一方面，噴射管具有2値流路，可以把其一方的流路 用做地盤之鬆弛用液的供給，將他方之流路做為削孔水的 供給及地盤鬆弛後之自硬性材料的供給。 在噴射管有3個流路時，可將其第1流路用於地盤的 鬆弛用液之供給，將第2流路用於提高由鬆弛用液的地盤 之切削能力及進行泥土向地上的空蓮之壓縮空氣的供給， 將第3流路用於地盤鬆弛後之自硬性材料的供給。 在改良對象域把鋼筋類插入而埋設在改良體中，將可 做為椿或壁。把一個改良體連設時，可以造成柱列椿或柱 列壁。 本發明，係把基礎放在「一旦使地盤鬆弛後，在其鬆 弛部份壓入時，將比例如噴射水泥漿工法，把地盤的攪拌 和注入同時進行，且使用單位水量多的流動性高之注人劑 時，壓密的範圍將會擴大且改良後之強度會提高」的知識 Ο 依本發明把高壓水噴射時，將能鬆弛對象地盤。地盤 (請先閱讀背面之注意事項再塡寫本頁} 本紙張尺度逍用中a S家桴準（CNS)甲4規格（2 ]Ο X 297公及) -6 - I9S916 Λ 6 ____Β_6 五、發明説明（5) 之鬆弛，主要偽由大的土粒子和連繫此等土粒子間之其週 圍的細土粒子之接合被分開而被進行。同時，由於該分開 將使空隙部份的比例增加，而被形成接下來的改良材料之 壓入路徑。 對該鬆弛的對象地盤，壓入粘稠之坍塌值小的改良材 料（自硬性材料）時，改良材料將會被壓入地盤之鬆弛部 份。由該壓入，改良材料將會如推開鬆弛的地盤地被注入 。此時，由於改良材料之坍塌值小，所以改良材料將被防 止跑走，同時鬆弛的地盤部份將改良材料所取代，將成為 像是其地盤部份以改良材料所充Λ。更且，一方面將由改 良材料的壓入壓力，使地盤部份被壓密，同時在軟弱部份 將有較多之改良材料被壓入，一方面對於強度大的部份， 由於地盤鬆弛之程度少，所以改良材料的壓入量少，因此 ,金體而言將能造成具有均勻強度之均勻改良徑的改良體 〇 另一方面，做為所用之設備，只要使用細的管如70 m Hi程度者就可以充份對應，所以設備費將比高壓噴射工 法或攪拌工法低廉。 並且，要使地盤鬆弛係使用高壓水，所以做為泥渣， 並非如高壓噴射工法所見的水泥和土粒子之混合泥渣，而 是只有水和土粒子的泥渣，故有泥渣處理容易之優點。只 有水和土粒子的泥渣時，可以把它分開，水份可以做為地 盤鬆弛用之高壓水，會有土粒子的泥漿可以添加水泥等自 硬性材料再利用，做為整體將能顯著地減低泥渣處理費用 (請先閲讀背面之注意事項再填寫本頁) 裝. 訂 本紙張尺度边用中國國家榀準(CNS)甲4規格（210x297公货) —Ί — 19991 Λ 6 136 經濟部屮央準·X'JM工消贽合作社卬到4 五、發明説明（6) 〇 同時，對砂質地盤也能容易地適用本發明，此點，和 先前的搜拌工法有明顯之不同。並且，由於地盤的對象域 之鬆弛化和改良材料的壓入傜以另外之工程式階段進行， 故不會有在高壓噴射工法時的改良強度之參差不齊。 可是，為了使高壓水從噴射噴嘴的到達距離增加，需 要提高高壓水之壓力。為了提高壓力，將使高壓水的壓送 設備大型化。同時，即使提高壓力，在地盤中水所具有的 能量也將會快速降低，對增加到達距離並無太大用處。 因此，根據本發明的第2形態時，將被提供其特徵為 在噴射管之尖端部設置至少在擴徑噴出狀態向管外側突出 的鼓出噴射部，在該鼓出噴射部設置對改良軸心向外方噴 射高壓水之噴射噴嘴，且在噴射管的比前述噴射噴嘴更尖 端邊形成自硬性材料之注出口，將此噴射管插入改良對象 地盤，在軸四週的旋轉，軸心方向之拉起過程，以使前述 鼓出噴射部突出到管外方的狀態，從前述噴射噴嘴使高壓 水噴射，使射噴嘴之噴射方向外方的地盤鬆弛，一面形成 鬆弛泥土柱或在形成後，在該鬆弛泥土柱由前述注出口， 使之排出粘稠的自硬性材料予以壓入，而造成改良體的地 盤之改良或強化工法。 更且，也將被提供其待徴為，在噴射管的尖端部，把 高壓水向半徑方向噴出之第1噴射噴嘴設在外周面，在該 第1噴射噴嘴的基部邊設置至少在擴徑噴徑狀向管外邊 突出之鼓出噴射部，在該鼓出噴射部設置對改良軸心向外 本紙張尺度边用中國國家樣準（CNS)甲4規格（210x297公垃） _ 〇 _ (請先閱讀背面之注意事項再填寫本頁} 經濟部屮央櫺準而A工消"合作社印一4 199916 Afi Λ 6 _ 13 6 五、發明説明（7) 方，使高壓水噴射到其到達距離比鼓出噴出部的外方端更 遠之第2噴射噴嘴，更在比前述第1噴射噴嘴尖端邊形成 自硬性材料的注出口，把該噴射管插入到改良對象地盤， 在軸心四週之旋轉，軸心方向的拉起過程中，以使前述鼓 出噴射部向管外方突出之狀態，從各噴射噴嘴中至少由第 2噴射噴嘴使高壓水噴射，使第2噴射噴嘴的噴射方向外 方之地盤鬆弛，一面把鬆弛泥土柱形成或在形成後，在此 鬆弛泥土柱由前述注出口使粘稠的自硬性材料排出予以壓 入，而造成改良髏的地盤之改良或強化工法。 此時，可使前述由第1噴射噴嘴的高壓水之到達距離 ，比鼓出噴射部的鼓出長度更長-，在噴射管之插入地盤中 時，至少由第1噴射噴嘴使高壓水噴射，一面使地盤鬆弛 一面插入噴射管。 同時，也可以在噴射管向地盤中插入時，事先以具有 比前述鼓出噴射部的尖端與噴射管之軸心的距離大之半徑 的徑，一面控外殼或在控外殼之後，在該外殼内插入噴射 管。 以撤除外殼的狀態，使由前述第1噴射噴嘴之高壓水 的到達距離，比前述外殼外面更遠，由第1噴射噴嘴使高 壓水噴射以鬆弛地盤，同時，使由前述第2噴射噴嘴的高 壓水之到達距離.，和由第1噴射噴嘴的到達距離遠，可從 第2噴射噴嘴也使高壓水噴射而使地盤鬆弛。 鼓出噴射部，係使沿噴射管軸心之折昼位置，和向外 方突出的位置之間成為從地上的操作而自由擴縮，在噴射 (請先閲讀背面之注意事項再填寫本頁) 本紙乐尺度逍用中國國家標準（CNS)甲4規格（210x297公及） _ g _ 1899 Λ 6 Β6 經濟部屮央槛準·n工消f?合作社印一4 五、發明説明（8) 管之插入時使之成為收縮狀態，在由設在鼓出噴射部的噴 射噴嘴之高壓水噴射時，可以使之突出地構成。 在本發明的第2形態中，最具特徴者，係從鼓出噴出 部使高壓水噴射而擴大改良徑者。 只是為了從設在噴射管的尖端部外周面之高壓水噴射 噴嘴，把高壓水噴射而大g地把對象地盤鬆弛時，係提高 壓力使以吐出量增Λ劈使噴嘴直徑變小而降低吐出量。然 而，提高壓力使吐出量增大時，泥土的排出量將會變多， 其排泥處理裝置將會變大而導致處理成本之增大。減小噴 嘴徑而使呈出量降低時，在使之吐出到地盤中之後高壓水 所具有的能量將會快速地降低，而不能獲得充份之鬆弛效 果。 然而，根據本發明的第2形態，設置從噴射管之外面 突出的鼓出噴射部時，由於將由其鼓出噴射部被進行高壓 水之噴射，即使未提高壓力或縮小噴嘴徑，或使吐出流量 過大，也將比未具有鼓出噴射部的單純之管所吐出的情況 ，能使鼓出噴射部之突出長部份（正確地說，是從管的外 面到噴射噴嘴之距離），能夠增大改良徑。 一方面，在噴射管的尖端部，將高壓水向半徑方向出 之第1噴射噴嘴設在外周面，且在該第1噴射噴嘴的基部 邊設置向管外側突出之鼓出噴射部，且使用在該鼓出噴射 部設置第2噴射噴嘴的噴射管時有很大之優點。亦即，在 該噴射管的插入時，使之從第1噴射噴嘴把高壓水噴射時 ，將能使其到逹距離份的地盤鬆弛，故能由壓入把該噴射 本紙张尺度逍用中國S家標準(CNS)甲4規格（210x297公及) _ 1Γ| _ · (請先閱讀背面之注意事項再填寫本頁) 裝< 線· 1999 Λ 6 136 經濟部中央標準乃Α工消"合作社印31 五、發明説明（9) 管直接，即不需要挖外殼而能插入，所以施工性優異。 更且，根據本發明的第3形態時，將被提供在噴射管 之尖端部，設置至少在擴徑將態向管外側突出的鼓出噴射 部，在該鼓出噴射部或比其下方之噴射管，至少涵蓋鼓出 噴射部的突出長份之地盤領域噴射高壓水的噴射噴嘴，並 且在比最下部噴射噴嘴更尖端邊形成自硬性材料之注出口 〇 把該噴射管插入到地盤，同時，至少由某深度到所定 深度之間，由前述噴射噴嘴使高壓水噴射，至少使前述鼓 出噴射部的突出長度份之地盤領域鬆弛而形成鬆弛泥土柱 後，在到達前述所定深度的位置或在拉起過程，由前述注 出口向前述鬆弛泥土柱，把粘稠的自硬性材料壓入而造成 改良體。 此時，可將前述噴射噴嘴在鼓出噴射部向下方設置， 或把前述噴射噴嘴，在噴射管外面的鼓出噴射部之下方位 置，向放射方向設置。 在本發明的第3形態，其特徽為第1是在噴射設置鼓 出噴出部之外，第2是在該鼓出噴射部或比此下方的噴射 管設置，至少涵蓋鼓出噴射部之突出長度份的地盤領域， 噴射高壓水之噴射噴嘴。 依此第3形態，設置從噴射管外面突出的鼓出噴射部 ，在其鼓出噴射部設置噴射噴嘴時，即使由各噴射噴嘴的 高壓水之到達距離短，但是以軸心為基準的到達距離能較 長，因此未提高壓力或縮小噴嘴徑，更未增大吐出流量， (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度通用中國困家《準(CNS)甲4規格（210X297公泛) -11 - 199918 Λ 6 Β6 經濟部十央槛準x;u工消疗合作社卬51 五、發明説明（^ 至少在鼓出噴射部的突出長度領域份，能確實使地盤鬆她 Ο 再者，將前述噴射噴嘴，在噴射管外面的鼓出噴射部 之下方位置，向放射方向設置時，在到達距離没有優點。 然而，在此情況或前者的情況，如有鼓出噴射部時，如果 不能把該噴射管插入到地盤中時，在其深度位置因地盤未 被鬆弛，所以鼓出噴射部將成為對地盤之阻力而出現，而 能做為對地盤鬆弛的良否之判斷指標。相反地，如此地不 能在該地盤插入該噴射管時，由採取噴射管的旋轉速度變 慢，使下降速度變慢，提高從噴射噴嘴之高壓水的壓力或 流量等手段，能確實地至少到鼓出噴射部之突出長度份使 地盤鬆弛。更且，在兩者的情況，鼓出噴射部也和攪拌葉 片一樣有某程度之攪拌效果，所以也有提高地盤鬆弛性的 優點。 〔為實施發明之最佳形態〕 以下，將本發明以圖面所示的實施例再詳細說明。 〔實施例〕 以下，將本發明參照圖面舉出具體例再詳細說明。 圖1〜圖4為第1形態的第1具體例，如圖1所示， 把尖端部具有噴嘴1的噴射管2在地盤中插入到某深度， 其後，如圖2所示，在將該噴射2 —面旋轉而拉起的過程 ，由前述噴射噴嘴1將高壓水W ,以對應於地盤性狀（土 (請先閱讀背面之注意事項再填寫本頁) 裝. 線- 本紙尺度边用中SS家標準（CNS)甲4規格（210x297公垃) 經濟部中央標準：：m工消作合作社印31 Λ 6 _______B_6 五、發明説明（ 質，軟弱度等）和目的之改良徑的壓力，最好在一般是以 50kg/cm2以上的壓力，待別理想是以80〜 350kg/cm2之壓力噴射而使對象地盤鬆弛。把該 鬆弛的地盤部份以記號S表示。 接著，此工程結束時，如圖3所示，在鬆弛的對象部 份把壓入管2A插入，例如由其尖端，把坍塌值（日本工 業規格JIS A 1101)為5〜15cm,更理想 為8〜15 cm之自硬性改良材料G灌入，如圖4地造成 改良體。 將壓入改良材料G時的形態示如圖5及圖6。在圖6 之①〜③表示經過時間。由此等圖面，也將可以判明在本 發明的壓入改良材料時，係被壓入成奶油狀。 在本發明中，做為改良材料，可以使用水泥漿糸，水 泥粘土糸，石灰糸等具有自硬性者，如前述地被使用粘度 高者。 其中最理想者為水泥漿条者，可以在此添加微粒子熔 渣，澎土（bentonite)等其他的無機材料、發泡劑、氣 泡劑、分離防止劑，減水劑等各種添加劑。並且，可以把 水玻璃或其硬化劑以某種比例添加。 第1具體例，雖為把噴射管2和壓入管2 A個別使用 之例，但是，做為第2具體例，係如圖7所示，使用具有 内管2 1和外管2 2的同心2重管所成之噴射管2 0 ,先 在其噴射管2 0 —面使旋轉力和壓力作用，一面以其尖端 之切削鑽頭2 3把地盤切削，一面把噴射管2 0在地盤中 (請先閱讀背面之注意事項再填寫本頁) 裝- 線. 本紙张尺度逍用中S a家樣準(CNS) 規格（210x297公垃） -13 - 經濟部十央標準劝q工消费合作社印51 1999.1； λ 6 ___D 6 _ 五、發明説明（1立 插入到所定深度。 接著，在一面使噴射管20旋轉而拉起的過程，從設 在比尖端在基部邊周壁之噴射噴嘴2 4把高壓水噴射，使 地盤的對象域鬆弛。同時，從在尖端開口之注出口25把 前述的改良材料G壓入。 再者，26為封閉内管21和外管22之空隙的插塞 Ο 參照圖7把壓密形態做概念性說明時，由改良材料G 的注入，一旦在地盤之鬆弛部份使改良材料G充滿後，繼 續進行壓入時，後面的改良材料將把先被排出之改良材料 向外方壓入地作用，結果將如第-7圖所示，能造成在周圍 有改良材料的壓密部份Z』，而在中心部份有固結體Z 2 之改良體。 一方面，如第2具體例，使用2重管或複流略管時， 將能在插入噴射管的過程把高壓水噴射而使地盤鬆弛。該 在下降過程中使地盤鬆弛，在第1具體例也能適用。 一方面，前述各例傜連續性的造成改良體之例，但是 也可以如圖8所示，造成間歇性的改良階段。此時，偽意 圖以枝狀骨格使整値地盤強化者。 '在本發明中，做為高壓水的壓力，係指通常在壓入管 除近或注入泵之排出邊的儀錶的壓力。做為該壓力，係如 前述使之成為50kg/cm2以上較理想，但是，依情 況有時之成為l〇〇kg/cm2以上較理想。做為噴射 水量，以5〜1 5又/分為理想。做為在本發明的噴水管 (請先閱讀背面之注意事項再填寫本頁) 裝- 線- 本紙張尺度边用中國Η家橒準（CNS)甲4規格（210x297公及） -14 - 1993 .〇 Λ 6 Β6 經濟部屮央標準々以工消作合作社印51 五、發明説明（d ，通常外徑為8 Omm以下者即可。關於壓入管也相同。 在壓入時，可以使用軟管類等。 本發明，能夠適用在各種工事。例如圖9,在軌道 3 1路基的砂土部份30之強化，或是如圖10,在混凝 土構造物40的下方之軟弱部份的改良等。3 2為石碴（ ballast)。 一方面，做為使地盤鬆弛的高壓液，以使用水在容易 獲得及成本之點比較理想，但是在水中添加界面性劑時， 將會提高對地盤的切削性。同時，將由鬆弛生成之泥土， 分開為上澄液和濃縮泥土之後，可以使用其上澄液。例如 在圖11所示，可以在高壓噴射管20的口邊設泥土槽 5 0 ,把隨著改良材料G之置換，在高壓噴射管2 0和孔 之間上升的泥土51以泵52汲起，以分離裝置53分離 成上澄液5 1 A和濃縮泥土 5 1 B ,將其上澄液5 1 A以 泵5 4添加到供給的高壓水W ,或在泥土之水份多時，只 供給上澄液5 1 A，而使用在地盤的切削。另一方面，濃 縮泥土 5 1 B則經由料斗5 5 ,供給到攪拌筒5 6 ,在此 使之與改良材料G混合後，可由泵57做為充填或置換用 的改良材料而供給到高壓噴射管2 ◦。如此地，把上澄液 利用到切削用時，由於會有子的粒子份，所以切削切良好 。同時，把濃縮泥土再利用時，此部之泥水處理將會減低 。再者，也可以不處理泥土51,而直接添加在改良材料 G〇 可是，做為所使用的管，如前述所述，不必分別準備 (請先閲讀背面之注意事項再填寫本頁) 本紙张尺度边用中8國家標準（CNS)<H規格（210Χ29Ϊ公货) 15 - 經濟部屮央標準x;w工消赀合作社印!|1 Λ 6 13 6 五、發明説明（u 噴射管2和壓入管2A,而用具有兩者之機能的單一單， 施工性較優。此時，如圔7所示之2重管時，可將外管邊 用做供給地盤鬆弛用的液體，將内管邊做為改良材料G之 供給，同時在此之前的穿孔時，可用以供給削孔水。 也可以用如圖12所示之3重管60。該3重管60 俗具有外管6 1,中管62及内管63,在外壁安裝噴射 噴嘴64,而在其週圍形成空氣A的環狀排出口65者。 從狹窄的環狀排出口 6 5使壓縮或高壓的的如5 kg/cm2以上之空氣時，泥土 51將以空蓮效果披圓 滑地排出到地上，同時將會提高地盤的切削能力。 要把改良材料G確實地或更加壓入時，可以如圖13 所示，將供給改良材料G的流路以蓋體2 7封閉，把當初 以灌入或以低壓力進行壓入之改良材料G,在地盤不能再 接受時，以高的壓力使之壓入。此時，可由壓力計28— 面監視壓力，而控制壓入程度，換言之控制地盤的壓密度 。此種壓密，通常，由於改良材料G會在數小時以半硬化 或半硬化，所以希望在變成這種狀態之前進行。 根據本發明時，由於能得到強度大的改良體，故能造 成強度大的椿體。同時，由將該椿體連設，也能造成柱的 椿或柱列壁。此時，除了只以改良材料造成改良體外，最 好是由將1支或複數支之鋼筋或適當形狀的鋼材（稱為鋼 筋類）插入在改良體内，以圖改良體之補強。例如，在圔 14及圖15所示，可以在各改良體Z内埋設由1支或複 數支的鋼筋或適當形狀之鋼材所成的鋼筋類7 0 ,同時使 本紙汝尺度边用中國Η家檁準（CNS)甲4規格（210X297公及) -16 - (請先閲讀背面之注意事項再蜞寫本頁} 裝· 線. 199916 Λ 6 Β6 經消部十央標準乃U工消作合作杜卬製 五、發明説明（^ 各改良材料Ζ互搭予以連設而能造成。更且，做為鏑筋類 ,也可以把用以供給改良材料的噴射管留在地盤中，將之 用做改良體之補強。 一方面，本發明可以和機械性攪拌混合手段併用。如 圖1 6所示，在尖端部將切削鑽頭8 2使用切削桿8 0 , 削孔到所定深度。當然，在此過程，最好是以設在切削鑽 頭82的下方之噴射噴嘴83,—面使週圍地盤鬆弛一面 進行削孔。接著，如圖1 8所示，在拉起過程使改良材料 G自然流下或壓入。由此，將能得到圖1 9所示的改良體 。再者，也可以在切削鑽頭82之上攪拌葉片在桿80突 出而設置。 · 在前述第1形態時，即使增加高壓水的噴射能量，其 高壓水之距離有界限，因此很難得到大徑的改良體。 因此，要得到大徑之改良體時，以採用下述的第2形 態為理想。 該第2形態之具體側，傜依照前述的圖1，圖1 7及 圖1 8。亦即，首先如圖1所示，把在尖端前面具有削孔 鑽頭，在尖端部周壁具有高壓水的噴射噴嘴1之弛緩管2 ，插入到地盤中的某深度，其後，如圖1 7所示，在使該 弛缓管2 —面旋轉而拉起之過程，由前述噴射噴嘴1將高 壓水W ,以對應於地盤的性狀（土質，軟弱度等）或目的 之改良徑的壓力，理想的是通常用50kg/cm2以上 的壓力，尤其理想的是以8◦〜35〇kg/cm2之壓 力噴射，使對象地盤鬆弛而形成弛缓泥土柱。把該鬆弛的 (請先閲讀背面之注意事項再構寫本頁) 裝- 本紙5k尺度边用中國S家標準(C N S)甲4校格（210 X 297公及） 17 - 經濟部小央標準AM工消"合作社卬製 i9Stiic Λ 6 _;____B6_ 五、發明説明（ 1次弛缓域以記號S,表示。改良域在地下水位以下時， 高壓水之到達距離將顯著地變小，例如以2 0 0 kg/cm2之壓力噴射時，改良徑也只有40cm程度 ，所以也可以像噴射水泥漿工法，使前述噴射管2做為二 重管，在高壓水之四週使噴射空氣順沿，以圖增加到達距 離。 接著，該工程結束時，如圖18所示，把噴射管3壓 入到弛缓的弛緩泥土柱内。在噴射管3之尖端部，被設有 至少在擴徑噴出狀態向管外邊突出的鼓出噴射部30,在 該鼓出噴射部3 ◦被設置對改良軸心向外方噴射高壓水之 噴射噴嘴3 1 ,更且在比該噴射噴嘴3 1尖端邊被形成自 硬性材料的注出口 3 2。 把該噴射管3插入改良對象地盤後，如圖1 8所示， 在軸心週圍的旋轉，軸心方向之拉起過程中，使鼓出噴射 部3 0突出管外方的狀態，從噴射噴嘴3 1使之噴射高壓 水，而使噴射噴嘴3 1的噴射方向外方之地盤弛缓。把該 地盤弛缓領域做為2次弛缓域以記號S 2表示。 一面使該弛缓地盤形成.一面從尖端的注出口3,將 前述粒稠之自硬性材料G壓入而造成改良體A。該改良體 A的造成，可以進行到地表面或某深度位置。 此時，在自硬性材料之壓入時，係從泥土柱的底部把 噴射管3慢慢向上方一面拉起而進行，自硬性材料G將從 底部慢慢使之堆積地充填。再者，一面保持前記噴射管3 的自硬性材料G中之浸漬長度而進行壓入較好。前述浸漬 (請先閱讀背面之注意事項再填寫本頁) 裝· 訂_ 線- 本紙5k尺度逍用中國國家標準(CNS)甲4規格（210 X 297公及) 18 - ：t99316 Λ 6 B 6 經濟部屮央標準沿Μ工消疗合作杜卬虹 五、發明説明（^ 長度，以30cm以上為佳，50cni以上更佳。 前述第2形態的第1具體例，係將弛缓管1和噴射管 3個別地使用之例，但如圖19及圖20所示，也顯示將 1次弛缓域S』和2次弛缓域S 2的形成以同一噴射管3 A進行，且以該噴射管3A也進行自硬性材料G之壓入的 例子。 做為該第2形態之第2具體例的噴射管3A,例如， 可以使用將圖21所示之内管33和外管34做為主構成 元件，且在此等的空隙設流路子35,把内管33内做為 自硬性材料G之流路，從流路子35形成向第1噴射噴嘴 3 1 A及第2噴射噴嘴3 1 B的各高壓水壓之流路者。 第1噴射噴嘴3 1 A係被設在噴射管3 A的外周面， 在該第1噴射噴嘴3 1 A之基部邊，係和前述第1具體例 一樣，在管外側突出的鼓出Jilt郭3 ◦被一體化。在該鼓 ______________________ — ..… 出噴射部3 ◦設有對改良軸心向外方，使高壓水的到達距 離噴射到比鼓出噴出部3 0之外方端更遠的第2噴射噴嘴 3 1 B。更且，在比第1噴射噴嘴3 1 A靠尖端邊被形成 有自硬性材料之注出口32。 使用如此的噴射管3A時，首先如圖19所示，一面 從第1噴射噴嘴3 1 A使高壓水噴射而把噴射管3 A插入 到地盤中的某深度。此時，可從注出口 3 2把削孔水吐出 。接著，到達某深度時，如圖2 ◦所示，一面將噴射管3 A旋轉拉起，一面只從第2噴射噴嘴3 B使高壓水噴射， 在1次弛缓域S 1的外方形成2次弛缓域S 2，同時從注 (請先閲讀背面之注意事項再填寫本頁) 裝. -•6 · 本紙张尺度边用中國囷家標準(CNS)甲4規格(210x29V公及） -19 - 199916 Λ 6 13 6 五、發明説明（j 出口32把自硬性材料G壓入。由該自硬性材料G把改良 髏A造成某長度。 圖2 2及圖2 3顯示第2形態的第3具體例者，在噴 射管3插入到地盤中之前，事先以鼓出噴射部3 0的尖端 和具有比噴射管之軸心距離大的半徑使用外殼4進行挖外 殼後，在此外殼4内插入噴射管3 ,以撤去外殼之狀態， 在噴射管3的旋轉拉起過程中，從噴射噴嘴3 1使高壓水 噴射而使地盤弛缓，同時可以從注出口32壓入自硬性材 料G 〇 經濟部中央梂準Χ;Α工消赀合作社卬¾ 做為本發明的鼓出噴射部，可以如圖24所示，把複 數例如2個分成長方向設置。此時，確實能夠把鼓出噴射 部3 ◦ A的插入領域，從第1噴射噴嘴3 1 A之高壓水， 將鼓出噴射部3 Ο B的插入領域，從第2噴射噴嘴3 1 B 之高壓水，分別由弛緩形成，最後從第3噴射噴嘴3 1 C 的高壓水將造成具有比鼓出噴射部3 Ο B之鼓出長度大的 半徑之改良體。更且，在本例中，不需要如第2形態的第 1具體例，先以弛缓管1使地盤弛缓後，再插入噴射管3 ,只以該噴射管3 C ,就能進行其插入和地盤弛缓，及到 達最下部後的從注出口 3 2之自硬性材料之壓入。 將此想法發展時，可以如圖2 5所示，設置如三角葉 片的鼓出噴射部3 0 C ,使設在其傾斜部之噴射噴嘴3 1 E，3 1 E .........，做為插入噴射管3 C用的弛缓用而使 用，同時，為了增了改良徑，可以採用從最外徑部之噴射 噴嘴3 1 D使之向周邊噴射高壓水的例子。 -20 - (請先閲讀背面之注意事項再填寫本頁) 本紙5艮尺度边用中國Η家榀準（CNS)甲4規格（210x297公垃) 1S99 Λ G Β6 經濟部中央榣準工消贽合作社印31 五、發明説明（j 更且，可以如圖26所示，在鼓出噴射部30之下面 設置向下的噴射噴嘴3 1 E , 3 1 E .........，做為插入噴 射管3 C之弛缓用。 圖27係在鼓出噴射部30的上方，設置攪拌葉片 40者，該攪拌葉片40將使弛缓地盤更鬆弛，同時，如 果噴射管3 C的旋轉阻力過大時，由於能鄰判斷為未成為 弛缓徑，所以也可以做為判斷指標構件使用。 上述例，是從開漿就有鼓出噴射部從管向外方突出， 但是，至少鼓出噴射部，只要「在擴徑噴出狀態向管外邊 突出」就可以，可如圖28及圖29所示，到某深度之前 未突出，而在到達某深度時，例如設置擴翼連桿機構葉片 41,在需要擴徑時，才像圖29,使擴翼連捍機構葉片 4 1擴翼。擴翼連桿機構葉片4 1 ,可以從地上壓入在外 管42而使之擴翼。43為削孔葉片。 再者，只要把地盤中的深度方向之某長度擴徑時，可 以如圖30所示，使口邊的孔徑小，而使改良體造成部份 之徑大。 在以上的圖2 4、2 9、1 6之例，自硬性材料偽從 插入到某深度的該噴射管之注出口 3 2壓入而造成改良體 。雖然也可以用另外的壓力專用管把自硬性材料壓入，但 是，施工性將會明顯地降低。 再者，前述例中，如果使最下端的噴射噴嘴，和自硬 性材料注出口 3 2之距離至少有5 0 c m程度，或最好確 保lm以上時，將不會有高壓水與自硬性材料G的干擾， (請先閱讀背面之注意事項再填寫本頁) 本紙5k尺度边用中as家標準（CNS)甲4規格(210x297公及) -21 - 丄 999ib Λ 6 Β6 經濟部屮央標準XJU工消设合作社卬¾ 五、發明説明（ 而能獲得良好的改良體。 在上述第2形態，也可以把由弛缓，自硬性材料之壓 入所生成的泥土，分離為上澄液和濃縮泥土後，使用其上 澄液。該例傜顯示在圖3 1。 亦即，在高壓噴射管3的管口設置泥土槽50,把隨 著由自硬性材料G之置換，在高壓噴射管2 0和孔壁之間 上升的泥土51以泵52汲起，由分離裝置53分開成上 澄液51A和濃縮泥土51B,將其上澄液51A以泵 54—旦儲留在貯槽58,做為下一形成弛缓泥土柱用的 高壓水使用。把上澄液利用做性削用時，由於含有小的粒 子份，故切削性將變好。 - 另一方面，濃縮泥土 5 1 B將經由料斗5 5供給到攪 拌茼5 6 ,在此與自硬性材料G混合後，以泵5 7充填到 高壓噴射管2 0，也可以做為置換用的自硬性材料供給。 同時，把濃縮泥工再利用時，此部份之泥水處理將會減少 。再者，也可以把泥土 5 1不處理，而直接添加到自硬性 材料G。 根據本發明時，由於能得到高強度的改良體，故能造 成強度大的椿體。同時，由將該椿體連設也能如圖3 2 所示，造成各種柱列椿或柱列壁（連缜壁）。此時，除了 僅以自硬性材料造成改良體外，最好是把1支或複數支銷 筋或適當形狀之鋼材（稱為鋼筋類）插入改良體内，以圖 其改良體的補強。更且，在造成柱列椿或柱列壁時，一支 噴射管將成為小徑且輕量，故能把複數支把持在1個内升 本紙5艮尺度边用中国困家標準（CNS)甲4規格（2丨0 X 297公垃) (請先閲讀背面之注意事項再埸寫本頁) 訂- 線· 9S9 Λ 6 Β 6 經濟部屮央標準劝：3工消奸合作社卬!|1 五、發明説明（y 降機，使噴if管群同時升降，而進行地盤之改良。 再者，前述例中，也可以在進行地盤的弛缓後，停止 從噴射管之高壓水的噴射，使噴射管在其深度位置固定之 狀態，只進行自硬性材料的注出。 本發明之第3形態，係不事先形成泥土柱，而在把具 有鼓出噴射部的噴射管插入地盤中之過程，造成泥土柱者 Ο 圖1 9及圖20傜為了將第3形態的第1具體例也說 明暑，3 A為噴射管而尖端前面具有削孔鑽頭，在尖端部 周壁具有高壓水的噴射噴嘴31A,並且在噴射管3A之 噴射噴嘴31A的上方部，設有至少在擴徑噴出狀態的管 外側突出之鼓出噴射部3 0，在該鼓出噴射部3 ◦被設置 對改良軸心向外把高壓水噴射的噴射噴嘴3 1 B，且在此 該噴射噴嘴3 1 A靠尖端邊被形成有自硬性材料之注出口 3 2 〇 使用如此的噴射管3A,首先如圖19所示，從第1 噴射噴嘴3 1 A使高壓水噴射，使其到逹距離和鼓出噴射 部30的長度相同或更長，一面使噴射管3A旋轉而插入 到地盤中之某深度。此時，可依需要而從注出口 3 2使削 孔水吐出。由高壓水的噴射，地盤將被弛缓而被造成以1 次弛缓域S/被表示之泥土柱。 接著，當到達某深度時，如圖2 0所示，一面使噴射 管3 A旋轉拉起，只從第2噴射噴嘴3 1 B使高壓水噴射 ，在1項弛緩域S 2的外方形成2次弛緩域S 2 ,同時從 (請先閲讀背面之注意事項再塡寫本頁) 裝· 訂- 線. 本紙56：尺度逍用中國困家標準（CNS)甲4規格（210x297公垃) χ99916 Λ 6 Β 6 經濟部屮央標準>!';:^工消费合作社卬54 五、發明説明（d 注出口32把自硬性材料G壓入。由該自硬性材料G把改 良體A造成某長度。 從兩値噴射噴嘴3 1 A、3 1 B,高壓水W可與前述 例一樣，使之成為對應地盤的性狀（土質，軟弱度等）或 目的之改良徑的80〜350kg/cm2之壓力。 (實驗例） 本發明人等，使用大致近似圖7的噴射管，在碎石 粉填築地進行改良之實驗。地盤弛缓用液：高壓水（壓力 200kg/cm2),其噴射量80公升/分，切削速 度：30分/m,使用改良材：水泥，澎土，砂之水泥一 澎土糸灰泥。一方面，做為比較例，也進行使用所諝 C C P工法的改良。 施工後經過數日，將之摻起而觀察固結體的改良狀況 ，結果，對於在本發明，係如圖33及圖34所示之形狀 ，而在比較例，偽如圖35及圖36所示的改良形狀為不 均勻者。而且，成為在固結體内如圖示地拉攏多數土塊之 狀態，為均勻性不良者。由此，被判明，根據本發明時， 將比先前例，能夠做為具有理想形狀的固結體而改良。 〔産業上之利用領域〕 如以上所述，根據本發明時，將有改良強度會提高， 能以簡單且小型的設備進行施工，能夠造成由壓密效果被 限定或只有目的之處均勻而堅固的改良體等優點。同時 (請先閱讀背面之注意事項再填寫本頁) 裝- -線· 本紙張尺度边用中SS家標準（CNS)甲4規格⑵0x297公)J：) A 6 B6 199916 五、發明説明（ ，將能確實地造成大徑的地盤之改良體。 (請先閲讀背面之注意事項再填寫本頁) 圖面之簡單說明： 第1圖為將第1具體例依施工順序顯示的第1工程概 要圖， 第2圖為將第1具體例依施工順序顯示之第2工程概 要圖， 第3圖為將第1具體例依施工順序顯示的第3工程概 要圖， 第4圖為將第1具體例依施工順序顯示之第4工程概 要圖， - 第5圖為自硬性材料的壓入狀態之模式性槪要圔， 第6圖為顯示改良劑的移動過程之概略圖， 第7圖為其他例的概略圖， 第8圖為其他改良形態之概要圖， 第9圖為其他施工例的概要圖， 第1 0圖為另外之施工例的槪要圖， 經濟部屮央標準乃Π工消"合作社印fii 第1 1圖為泥土之再利用例的概要圖， 第1 2圖為3重管之主要部分剖面圖， 第1 3圖為進行壓入時的例之概略圖， 第1 4圖為柱列椿的剖面圖， 第1 5圖為柱列椿之平面圖， 第1 6圖為依其他的具有攢拌葉片之裝置的改良例之 工程概要圖， -25 - 本紙尺度逍用中S國家標準(CNS)甲4規格(210x297公Ji) 19991b Λ 6 136 經濟部中央榀準乃Μ工消费合作社印3i 五、發明説明（ 第1 7圖為在地盤形成泥土柱的狀態之概要圖， 第1 8圖為依本發明的第2形態之施工狀態的概要圖 t 第1 9圖為其他例之施工狀態概要圖， 第2 0圖為更其他例的施工狀態槪要圔， 第2 1圖為噴射管之例的直剖面圖， 第2 2圖為外殼建立狀態之直剖面圖， 第2 3圖為其後的拉起過程之直剖面圖， 第2 4圖為噴射管的變形例之其他的圖， 第2 5圖為噴射管之變形例的另外之圖， 第2 6圖為噴射管的更不同之例的圖， 第2 7圖為具有攪拌葉片的噴射管之例的槪要圔， 第2 8圖為擴翼式之例的擴翼狀態圖， 第2 9圖為擴翼之例的擴翼狀態圖， 第3 0圖為其他之地盤改良形態例的概要圖， 第3 1圖為另外之泥土的再利用例之槪要圖， 第3 2圖為柱列椿或柱列壁的造成例之平面圖， 第3 3圖為根據本發明法的改良體之直剖面圖， 第3 4圖為同水平剖面圖， 第3 5圖為根據噴射水泥漿法的改良性體之直剖面圖 f 第3 6圖為其水平剖面圖。 (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度边用中國國家棕準（CNS)甲4規格（210x297公及） -26 -199916 Λ 6 Β6 The Ministry of Economic Affairs, Ministry of Economic Affairs, Printing and Printing Cooperatives 31, V. The description of the invention (1) [Technical Field] The present invention relates to the improvement of weak sites or the strong chemical industry law. In a relaxed site, self-hardening materials such as high-viscosity or very thick water bars can be said to be pushed in like a tuck to try to improve the workmanship. [Previous Technology] _ As a construction method of such a site, various people have been known. A representative example is the injection method. This method is, as is well known, a method in which a medical fluid is injected at a low pressure from an injection pipe inserted into a construction site. In addition, ^ when making the liquid medicine does not disturb the private Zen disc, and make it soaked in as the basic idea. On the other hand, in recent years, the high-pressure jetting method typified by the jetting grout (fet-grout) method has been increasingly used. This high-pressure jetting method disturbs the construction site with the high pressure of the cement slurry or water, and at the same time injects the cement slurry into the construction site. This high-pressure jetting method can also explain the extreme of the site ^^^ ^ On the other hand, as a pure stirring method, mainly for the viscous site, the state of inserting the stirring shaft with the stirring blade into the site, The cement bar material is supplied through its stirring shaft or from another supply system, and the ground is stirred with the stirring blades, while the stirring field is replaced by the cement bar material or mixed with the sand and soil. However, in the first medicinal fluid injection method, a material with a low lift is used for permeation and pressure injection, and mainly a material of sodium silicate is used, so its improved strength is low, and it also lacks durability. In addition, the original with low strength is improved (please read the precautions on the back before filling out this page). The paper size is based on the Chinese National Standard (CNS) A 4 specifications (210x297) -3-Ministry of Economic Affairs絀 貀 Cooperative seal! Il i 9 9 c # 〇Λ 6 _B_6 V. Description of the invention (2) Because it is better not to replace the site with improved materials but to infiltrate injection or split injection, so the improvement materials per unit volume account for The ratio is low, and unevenness is also the reason. In addition, when the problem points are added, although the infiltration injection can be carried out in the usual sandy soil layer, the small difference in the injection conditions will become the shape of split injection, and it is often impossible to perform the infiltration injection. On the other hand, when the cohesive soil layer is injected, it will be split and injected, and the improved material will often escape. Therefore, it is difficult to surely improve the target area, and there is a lot of material loss with the escape. At the same time, the improved diameter of the goal cannot be uniform and often becomes tree-like (tree-like or vein-like). In the second high-pressure jetting method, the site will be extremely disturbed, and the sludge treatment will take a lot of time and expense. In addition, when cutting and injection are carried out uniformly and the sludge is discharged sufficiently, it is necessary to reduce the improvement speed, which is a time-consuming construction method. In addition, for sand texture discs, the strength is 30kg / Cm2 or more, and for sticky ground, 10kg / cm2 or more is the target. However, the unevenness of the strength of the ground properties and the uneven strength of the improved body position are a problem. . In particular, in the case of a sticky site, the unevenness caused by the pulling of the soil due to insufficient cutting is very serious. The third method of mixing and mixing has the disadvantage that the equipment will be enlarged, and the mixing effect is not very high in the clay soil layer, so it lacks the uniformity of the improved strength. On the other hand, this mixing method is generally aimed at the above-mentioned sticky ground. Although it is also possible to apply to sand-textured plates, due to the large resistance of the mixing shaft and mixing blades to the ground, unless a huge mixing method is used (please read the precautions on the back and fill in this page) Use China B Standard (CNS) Grade 4 specifications (210x297 and 1) One 4 one 189916 Λ 6 136 Ministry of Economic Affairs Xiaoyang Zhuo Zhuo Piao Cooperative Cooperative Printed Disaster V. The invention description (3) cannot be applied. Therefore, the first object of the present invention is to improve the improved strength and the uniformity of the improved body, so that it can be constructed with simple and small equipment, resulting in a compact improved body that is limited by the compaction effect or only for the destination point . The second purpose is to increase the distance of the high-pressure water from the high-pressure water injection nozzle and increase the diameter of the improved body. The third purpose is to increase the diameter of the improved body while making it a uniform improved diameter. [Invention of the invention] In the present invention, the high-pressure liquid injection nozzle provided at the tip of the injection pipe inserted into the ground is used to inject high-pressure water to slacken the target site, or to relax it in a loose site Very thick, it is ideal to push the self-hardening material slump klg 15 cm or less into the modified body. Furthermore, at this time, the target site can be loosened and muddyed by the injection of high-pressure liquid, and the self-hardening material can be pushed in to push up the muddy soil and be eliminated to create an improved body. ~ Furthermore, the timing of slackening of the site by high-pressure liquid is different from the timing of pressing in a self-hardening material, and an injection port can also be formed at the tip of the injection injection pipe, which is located closer to the base end than the injection port The injection nozzle, and in the process of pulling up the injection injection pipe, the relaxation of the ground and the pressing of the self-hardening material are performed at about the same time. The injection pressure of the high-pressure liquid from the high-pressure liquid injection nozzle can be made (please read the precautions on the back before filling out this page). ) One 5 — Ministry of Economic Affairs Shiyoujuu · u Gongxiao " Cooperative Print " 199916 β Λ 6 ___ Β_6 V. Description of the invention (4) 50kg / cm2 G or more. The liquid that relaxes the ground will increase the cutting ability if surfactant is added to the water. The excluded soil can be added to the self-hardening material as a modified material. The excluded mud is separated into clarified liquid and concentrated soil, and the clarified liquid is used as the relaxation liquid for the site, and it is ideal to directly or add it to the water for reuse. The aforementioned concentrated soil can be added to the self-hardening material and used as a material for improving the skeleton. On the one hand, the injection tube has two flow paths, and one of the flow paths can be used as the supply of the relaxation liquid of the ground, and the other flow path can be used as the supply of the drilling water and the supply of the self-hardening material after the ground relaxes. . When the injection tube has three flow paths, the first flow path can be used for the supply of the relaxation liquid of the site, and the second flow path can be used to improve the cutting capacity of the site from the relaxation liquid and carry the soil to the ground. The supply of compressed air from the air lotus uses the third flow path for the supply of the self-hardening material after the site relaxes. Insert the steel bars in the improvement target area and bury them in the improvement body, which can be used as a pile or wall. When a modified body is connected together, it can cause column stumps or column walls. The present invention puts the foundation on "Once the site is relaxed, when the loose part is pressed in, the mixing and injection of the site will be carried out at the same time as, for example, the jet grouting method, and the fluidity is high when using a large amount of water. When injecting a human agent, the range of compaction will be expanded and the strength after improvement will be improved "knowledge Ο When the high-pressure water is sprayed according to the present invention, the target site will be relaxed. Site (please read the precautions on the back before writing this page) This paper is used in a small format (S) Home Standard (CNS) A 4 specifications (2) Ο X 297 and -6-I9S916 Λ 6 ____ Β_6 V. DESCRIPTION OF THE INVENTION (5) Relaxation is mainly performed by the joining of large soil particles and the surrounding fine soil particles that are connected to each other. The separation will cause the proportion of voids Increased, and formed the next intrusion path of the improved material. When the loose object site is pressed into the viscous modified material with small collapse value (self-hardening material), the improved material will be pressed into the relaxation of the site Due to this pressing, the improved material will be injected like pushing away the slack site. At this time, because the collapse value of the improved material is small, the improved material will be prevented from running away, while the slack site will be improved Replaced by the material, it will become like the part of the site is filled with improved material. Moreover, on the one hand, the pressure of the improved material will make the part of the site compacted, and there will be more in the weak part Improved materials are pressed in, on the one hand For the part with high strength, the amount of intrusion of the improved material is small due to the small degree of ground relaxation, therefore, the gold body will result in an improved body with uniform strength and uniform diameter. On the other hand, it is used as As long as the equipment is thin, such as 70 m Hi, it can be adequately matched, so the equipment cost will be cheaper than the high-pressure jet method or the stirring method. In addition, high-pressure water is used to relax the site, so it is used as sludge. It is not a mixed sludge of cement and soil particles as seen in the high-pressure injection method, but a sludge of only water and soil particles, so it has the advantage of easy handling of sludge. When only sludge of water and soil particles can be separated The water can be used as high-pressure water for site relaxation. The mud with soil particles can be reused by adding self-hardening materials such as cement. As a whole, it can significantly reduce the cost of sludge treatment (please read the precautions on the back first (Fill in this page) Packing. The standard size of the paper is used in China National Standards (CNS) A4 specifications (210x297 public goods) —Ί — 19991 Λ 6 136 Biyangzhun · X'JM Gongxiaozhi Cooperative of the Ministry of Economic Affairs To 4. V. Description of the invention (6) 〇 At the same time, the invention can be easily applied to sand texture discs, which is obviously different from the previous search and mixing method. Moreover, due to the relaxation and improvement of the object area of the site The pressing of the material is carried out in another engineering stage, so there is no unevenness in the improved strength during the high-pressure jetting method. However, in order to increase the reach of the high-pressure water from the jet nozzle, it is necessary to increase the pressure of the high-pressure water In order to increase the pressure, the pressure-feeding equipment for high-pressure water will be enlarged. At the same time, even if the pressure is increased, the energy of the water in the site will quickly decrease, which is not very useful for increasing the reach distance. Therefore, according to this In the second aspect of the invention, it will be provided that the tip of the injection tube is provided with a bulging injection part that protrudes to the outside of the tube at least in the expanded-diameter injection state, and the bulging injection part is provided outwardly with respect to the improved axis A jet nozzle that jets high-pressure water, and an injection port of a hard material is formed at the tip of the jet pipe more than the jet nozzle, and the jet pipe is inserted into the target site for improvement , The rotation around the shaft, the process of pulling up in the direction of the shaft center, so that the bulging spray part protrudes to the outside of the tube, and the high-pressure water is sprayed from the spray nozzle to relax the ground outside the spray direction of the spray nozzle On one side, a loose soil column is formed or after it is formed, the loose soil column is discharged from the aforementioned injection port to discharge the viscous self-hardening material to be pressed in, resulting in the improvement of the site of the improved body or the strong chemical method. Furthermore, it will be provided that the first jet nozzle that jets high-pressure water in the radial direction at the tip of the jet pipe is provided on the outer peripheral surface, and the base side of the first jet nozzle is provided at least at the expanded diameter A bulging ejection part that protrudes toward the outside of the pipe with a spray diameter, and the bulging ejection part is provided with a Chinese version of the Chinese National Standard (CNS) Grade 4 (210x297 public waste) for the improved axis to the original paper size. Please read the precautions on the back before filling in this page} Ministry of Economic Affairs, Central Government, and A Gongxiao & Co., Ltd. Printed 1 4 199916 Afi Λ 6 _ 13 6 V. Description of the invention (7), so that high-pressure water is sprayed to it A second injection nozzle that is farther away than the outer end of the bulging injection section is formed with an injection port of a self-hardening material at the tip side of the first injection nozzle, and the injection tube is inserted into the improvement target site at the axis During the rotation of the four sides and the pulling up in the axial direction, the high-pressure water is sprayed from at least the second spray nozzle of each spray nozzle so that the swollen spray part protrudes outward from the tube, and the The site outside the jet direction is loose, one After forming or after the formation of the loose soil column, the loose soil column is discharged from the injection port to push out the viscous self-hardening material and press it in, resulting in the improvement or strong chemical method of the improved skeleton site. The reach distance of the high-pressure water of the first spray nozzle is longer than the swell length of the bulging spray part-, when the spray pipe is inserted into the ground, at least the high-pressure water is sprayed by the first spray nozzle, and the ground is relaxed while the ground is inserted At the same time, when the injection tube is inserted into the ground, it may be controlled with a diameter larger than the distance between the tip of the swollen injection part and the axis of the injection tube in front of or behind the control shell. Insert the spray tube into the housing. With the housing removed, the high-pressure water from the first spray nozzle reaches a distance further than the outside of the housing, and the high-pressure water is sprayed from the first spray nozzle to loosen the floor. The distance of reaching the high-pressure water from the second spray nozzle and the distance from the first spray nozzle are long, and the high-pressure water can also be sprayed from the second spray nozzle. The bulging out of the spraying part makes the free expansion and contraction from the ground operation between the folding position along the axis of the spraying tube and the position protruding outward, please read the precautions on the back before filling in (This page) This paper music standard uses the Chinese National Standard (CNS) A4 specifications (210x297 and _) _ g _ 1899 Λ 6 Β6 Ministry of Economic Affairs 揮 yangzhan · n Gongxiao f? Cooperative printed a 4 V. Description of invention ( 8) When the tube is inserted, it is brought into a contracted state, and it can be made to protrude when it is jetted by high-pressure water provided in the jet nozzle of the bulging jet part. In the second aspect of the present invention, it is the most unique, It is a high-pressure water jet from the bulging spout to expand the improved diameter. It is only used to jet high-pressure water from the high-pressure water jet nozzle provided on the outer peripheral surface of the tip of the jet tube to loosen the target site greatly. The pressure is increased by the discharge amount, and the diameter of the nozzle is reduced to decrease the discharge amount. However, when the discharge volume is increased by increasing the pressure, the amount of soil discharged will increase, and the sludge treatment device will become larger, resulting in an increase in the treatment cost. When the nozzle diameter is reduced to reduce the amount of discharge, the energy of the high-pressure water will rapidly decrease after it is discharged into the site, and a sufficient relaxation effect cannot be obtained. However, according to the second aspect of the present invention, when the bulging injection part protruding from the outer surface of the injection tube is provided, since the high-pressure water will be sprayed by the bulging injection part, even if the pressure is not increased or the nozzle diameter is reduced or the spit is discharged If the flow rate is too large, it will spit out the protruding long part of the swollen spray part (to be precise, the distance from the outside of the tube to the spray nozzle) compared to the case of a simple tube without a swollen spray part. Increase the improved diameter. On the one hand, at the tip of the injection tube, a first injection nozzle that emits high-pressure water in the radial direction is provided on the outer peripheral surface, and a bulging injection portion that protrudes outward from the tube is provided at the base of the first injection nozzle and used There is a great advantage when the injection tube of the second injection nozzle is provided in this bulging injection section. That is, when the jet tube is inserted, when the high-pressure water is jetted from the first jet nozzle, it will relax the site to the distance, so the jet size can be used easily by pressing in China S Home Standard (CNS) Grade A 4 specifications (210x297 g) and _ 1Γ | _ · (Please read the precautions on the back before filling this page) < Line · 1999 Λ 6 136 Central Standard of the Ministry of Economic Affairs is A Gong & Co .; 31 printed by the cooperative. V. Description of the invention (9) The tube is direct, that is, it can be inserted without digging the shell, so it has excellent workability. Furthermore, according to the third aspect of the present invention, it will be provided at the tip of the injection tube, and a bulging injection part that protrudes to the outside of the tube at least in the expanded diameter will be provided, at or below the bulging injection part The injection tube covers at least the injection nozzle that jets high-pressure water from the protruding part of the construction area that bulges out of the injection part, and a self-hard material injection port is formed at the tip of the lowermost injection nozzle. Insert the injection tube into the construction site while , At least from a certain depth to a predetermined depth, the high-pressure water is sprayed by the spray nozzle, at least the projected length of the bulging spray portion is relaxed to form a loose soil column, and after reaching a position of the predetermined depth or During the pulling-up process, the viscous self-hardening material is pressed into the loose soil column from the injection port to create an improved body. In this case, the spray nozzle may be installed downward in the bulging spray section, or the spray nozzle may be disposed in the radial direction under the bulging spray section outside the spray pipe. In the third aspect of the invention, the first feature is that the first is to provide a bulging and squirting part in the injection, and the second is to provide the swollen and squirting part or a spray tube below this, at least covering the swollen and spouting part. A jet nozzle that jets high-pressure water to highlight the length of the site area. According to the third aspect, when the bulging spray part protruding from the outside of the spray pipe is provided, and the spray nozzle is provided in the bulging spray part, even if the reach distance of the high-pressure water from each spray nozzle is short, the arrival is based on the axis The distance can be longer, so the pressure is not increased or the nozzle diameter is reduced, and the discharge flow is not increased. (Please read the precautions on the back before filling this page.) 210X297 (Public) -11-199918 Λ 6 Β6 Ministry of Economic Affairs Ten Central Standards x; u Gong Xiaoping Cooperative Society 卬 51 V. Description of invention (^ At least in the area of the protruding length of the bulging jet department, it can indeed make the site loose. Ο Furthermore, there is no advantage in the reach distance when the aforementioned spray nozzle is installed in the radial direction below the bulging spray part outside the spray tube. However, in this case or the former case, there is a bulging spray part At this time, if the injection tube cannot be inserted into the ground, the swelled jet will appear as a resistance to the ground at its depth because the ground is not slack, so it can be used as a good or bad slack to the ground. Judgment index. On the contrary, when the site is inserted into the injection tube, the rotation speed of the injection tube is slowed down, the descent speed is slowed down, and the pressure or flow rate of the high-pressure water from the injection nozzle can be increased. At least the length of the projected length of the bulging jet portion relaxes the ground. Furthermore, in both cases, the bulging jet portion also has a certain degree of stirring effect like the stirring blade, so it also has the advantage of improving the slack of the ground. [Best Mode for Carrying Out the Invention] Hereinafter, the present invention will be described in more detail with the embodiments shown in the drawings. [Examples] The present invention will be described in detail below with reference to the drawings and specific examples. FIGS. 1 to 4 As the first specific example of the first form, as shown in FIG. 1, the injection tube 2 having the nozzle 1 at the tip is inserted into the ground to a certain depth, and then, as shown in FIG. 2, In the process of rotating and pulling up, the high-pressure water W is sprayed by the aforementioned spray nozzle 1 according to the characteristics of the site (soil (please read the precautions on the back and then fill out this page). Thread-This paper standard uses the SS standard ( CNS) A4 Grid (210x297 public waste) Central Standard of the Ministry of Economy :: m Gong Xiao Zuo Cooperative Society 31 31 Λ 6 _______B_6 V. Description of the invention (quality, weakness, etc.) and the purpose of improving the diameter of the pressure, the best is generally 50kg / cm2 The above pressure is ideally to be sprayed at a pressure of 80 ~ 350kg / cm2 to relax the target site. The part of the loose site is indicated by the symbol S. Then, at the end of this project, as shown in Figure 3, during the relaxation The target part is inserted into the press-in tube 2A, for example, from its tip, the self-hardening improved material G with a collapse value (Japanese Industrial Standard JIS A 1101) of 5 to 15 cm, more preferably 8 to 15 cm is poured, as shown in FIG. 4 The modified body G. The shape when the modified material G is pressed is shown in FIGS. 5 and 6. ① to ③ in Fig. 6 show the elapsed time. From these drawings, it can also be seen that when the improved material of the present invention is pressed, it is pressed into a creamy shape. In the present invention, as an improved material, cement slurry, cement, lime, etc., which have self-hardening properties, such as those with high viscosity as described above can be used. Among them, the most ideal one is a cement paste strip, which can add various additives such as fine particle slag, bentonite (bentonite) and other inorganic materials, foaming agent, foaming agent, separation inhibitor, water reducing agent and so on. Also, water glass or its hardener can be added in a certain ratio. The first specific example is an example in which the injection tube 2 and the press-in tube 2 A are used separately. However, as the second specific example, as shown in FIG. 7, a concentric structure having an inner tube 2 1 and an outer tube 2 2 is used. The injection tube 2 0 formed by the double pipe firstly exerts the rotating force and pressure on its injection tube 2 0, while cutting the construction site with the cutting bit 23 at its tip, and the injection tube 2 0 in the construction site ( Please read the precautions on the back before filling out this page) Packing-Line. This paper is used in the Sa Family Standard (CNS) specification (210x297 public waste) -13-The standard of the Ministry of Economic Affairs is encouraged to be printed by the QC consumer cooperative. 51 1999.1; λ 6 ___D 6 _ 5. Description of the invention (1 vertical insertion to a predetermined depth. Next, the process of rotating the injection tube 20 on one side and pulling it up, from the injection nozzle 24 provided on the peripheral wall of the base side than the tip High-pressure water jet relaxes the target area of the site. At the same time, the aforementioned modified material G is pressed in from the injection port 25 opening at the tip. Furthermore, 26 is a plug that closes the gap between the inner tube 21 and the outer tube 22 Figure 7 conceptually illustrates the compaction form. The injection of improved material G, once on the site After the modified part G is filled with the slack, and the press-fitting continues, the post-modified material will push the modified material that was discharged first to the outside. The result will be as shown in Figure -7, which can cause the surrounding There is a compacted part Z of improved material, and there is an improved body of consolidated body Z 2 in the central part. On the one hand, as in the second specific example, when using a double pipe or reflow spool, it will be able to insert the jet The process of the pipe sprays high-pressure water to relax the site. This process can be applied to the first specific example during the descent. On the one hand, the continuity of the previous examples leads to an improved example, but it can also be as As shown in Figure 8, it causes an intermittent improvement phase. At this time, the pseudo intention is to strengthen the site with a dendritic bone lattice. 'In the present invention, the pressure as high-pressure water means that the pressure is usually close to the The pressure of the meter at the discharge side of the injection pump. As this pressure, it is desirable to make it 50kg / cm2 or more as described above, but sometimes it is more ideal to be 100kg / cm2 or more. , With 5 ~ 1 5 again / divided into ideal. As in The sprinkler pipe of the present invention (please read the precautions on the back before filling in this page) Installation-Line-This paper uses the standard of China 插 潒 准 (CNS) A 4 specifications (210x297) and -14-1993 .〇Λ 6 Β6 The Ministry of Economic Affairs Standard 々 Printed by the Industrial and Commercial Cooperation Cooperative 51 51. Description of the invention (d, usually the outer diameter is less than 8 Omm. The same applies to the press-fit tube. When press-fitting, hoses, etc. can be used The present invention can be applied to various fortifications, for example, as shown in FIG. 9, the strengthening of the sand part 30 of the track 31 subgrade, or the improvement of the weak part below the concrete structure 40 as shown in FIG. 10. 3 2 is ballast. On the one hand, it is ideal to use water as a high-pressure fluid to relax the site, because it is easy to obtain and cost, but adding an interfacial agent to the water will improve the machinability of the site. At the same time, after separating the mud produced by relaxation into the clarified liquid and the concentrated soil, the clarified liquid can be used. For example, as shown in FIG. 11, a mud tank 50 can be provided at the mouth of the high-pressure injection pipe 20, and the mud 51 that rises between the high-pressure injection pipe 20 and the hole as the improved material G is replaced by the pump 52 , Separated into the upper liquid 5 1 A and the concentrated soil 5 1 B by the separating device 53, and the upper liquid 5 1 A is added to the supplied high-pressure water W by the pump 54, or when there is much water in the soil, only Supply 5 1 A of clear liquid and use it for cutting on the ground. On the other hand, the concentrated soil 5 1 B is supplied to the mixing drum 5 6 through the hopper 5 5, where it is mixed with the improved material G, and can be supplied to the high-pressure jet by the pump 57 as an improved material for filling or replacement Tube 2 ◦. In this way, when the clarifying liquid is used for cutting, since there are particles of particles, the cutting is good. At the same time, when the concentrated soil is reused, the mud water treatment in this part will be reduced. In addition, it is not necessary to deal with the soil 51, and it can be added directly to the improved material G. However, as the tube used, as mentioned above, it is not necessary to prepare separately (please read the precautions on the back before filling this page) This paper China National Standard 8 (CNS) < H specifications (210Χ29Ϊ public goods) 15-Ministry of Economic Affairs standard x; w industrial consumer cooperation cooperative printing! | 1 Λ 6 13 6 V. Description of the invention (u injection tube 2 and press-in tube 2A, but with both The single function of the unit, the construction is better. At this time, when the double pipe shown in Figure 7 is used, the outer pipe can be used as the liquid for the slack of the site, and the inner pipe can be used as the supply of the improved material G. At the same time, before the perforation, it can be used to supply drilling water. You can also use the triple pipe 60 as shown in Figure 12. The triple pipe 60 usually has an outer pipe 61, a middle pipe 62 and an inner pipe 63, A jet nozzle 64 is installed on the outer wall, and an annular discharge port 65 of air A is formed around it. When the compressed or high-pressure air such as 5 kg / cm2 or more is compressed from the narrow annular discharge port 65, the soil 51 will The smooth discharge of the air lotus effect on the ground will also improve the cutting ability of the ground. When the improved material G is reliably or more pressurized, as shown in Figure 13, the flow path for the improved material G can be covered The body 27 is closed, and the improved material G, which was originally infused or pressed at a low pressure, is pressed at a high pressure when the site is no longer acceptable. At this time, the pressure can be monitored by the pressure gauge 28, and the degree of intrusion can be controlled, in other words, the pressure density of the site. This kind of compaction is usually due to the semi-hardening or hardening of the improved material G in a few hours. It is semi-hardened, so it is desirable to proceed before this state. According to the present invention, since an improved body with high strength can be obtained, a stiff body with high strength can be produced. At the same time, the stiff body can be connected to form a column At this time, in addition to only improving the external body caused by the improved material, it is best to insert one or more steel bars or steel bars of appropriate shape (called steel bars) into the improved body. Reinforcement of the improved body. For example, as shown in Fig. 14 and Fig. 15, it is possible to embed steel bars made of one or a plurality of reinforcing bars or steel materials of appropriate shapes in each improved body Z, while making the paper size Use Chinese Η home purlin (CNS) A 4 specifications (210X297) and -16-(please read the precautions on the back before writing this page). Installation and line. 199916 Λ 6 Β6 The Ministry of Economy and Trade ’s Shiyang standard is U Gong Xiao Zuo Cooperation Du Wu System V. Description of Invention (^ The improved materials Z can be connected to each other to form a joint. Furthermore, as dysprosium, the injection tube used to supply the improved materials can also be left in the ground and used as a reinforcement for the improved body. On the one hand, The present invention can be used in combination with mechanical stirring and mixing means. As shown in FIG. 16, the cutting bit 8 2 is used at the tip to cut a hole to a predetermined depth using a cutting rod 80. Of course, in this process, it is best to set The jet nozzle 83 below the cutting bit 82 makes a hole while slackening the surrounding ground. Then, as shown in FIG. 18, during the pull-up process, the improved material G naturally flows down or presses in. Thus, it can be obtained Figure 19 shows the improved body. In addition, a stirring blade may be provided on the cutting bit 82 to protrude from the rod 80. In the aforementioned first form, even if the injection energy of the high-pressure water is increased, the distance of the high-pressure water is limited, so it is difficult to obtain a large-diameter improved body. Therefore, in order to obtain a large-diameter improved body, it is desirable to adopt the second form described below. As for the specific side of this second form, Wang follows the aforementioned Fig. 1, Fig. 17 and Fig. 18. That is, first, as shown in FIG. 1, the relaxation tube 2 of the injection nozzle 1 having a hole-drilling bit in front of the tip and high-pressure water on the peripheral wall of the tip is inserted to a certain depth in the ground, and then, as shown in FIG. 1 7 As shown, in the process of rotating the relaxation tube 2-plane and pulling it up, the high-pressure water W is sprayed by the aforementioned spray nozzle 1 to a pressure corresponding to the properties of the site (soil, softness, etc.) or the diameter of the purpose of the improvement, ideal The pressure is usually 50kg / cm2 or more, and it is particularly desirable to spray at a pressure of 8◦ ~ 35〇kg / cm2 to relax the target site and form a relaxed soil column. Put the slack (please read the precautions on the back before constructing this page).-This paper uses the Chinese S home standard (CNS) A 4 standard (210 X 297) and the 5k scale side of the paper. 17-Small Central Standard of the Ministry of Economic Affairs AM Gongxiao " Cooperative Co., Ltd. i9Stiic Λ 6 _; ____ B6_ V. Description of the invention (The first relaxation zone is indicated by the symbol S. When the improved zone is below the groundwater level, the reach of high-pressure water will be significantly reduced, such as When the pressure of 2 0 0 kg / cm2 is sprayed, the improved diameter is only about 40cm, so it can also be used as a spray slurry method, using the aforementioned spray tube 2 as a double pipe, so that the spray air is along the surroundings of the high-pressure water, to The figure increases the reach distance. Next, at the end of the project, as shown in FIG. 18, the injection tube 3 is pressed into the relaxed relaxation soil column. At the tip of the injection tube 3, it is provided at least in the expanded diameter spray state A bulging spray part 30 protruding from the outer side of the tube is provided at the bulging spray part 3. A spray nozzle 3 1 for spraying high-pressure water outward to the improved axis is formed on the tip side of the spray nozzle 3 1. Hard material injection port 3 2. Insert the injection tube 3 into the After a good object site, as shown in FIG. 18, during the rotation around the axis and pulling up in the axis direction, the swollen jet portion 30 is projected out of the tube and jetted from the jet nozzle 31 High-pressure water relaxes the site outside the jetting direction of the jet nozzle 31. The area of the site relaxation is represented by the symbol S 2 as the secondary relaxation zone. The relaxation site is formed while the injection port 3 from the tip Pressing the aforementioned self-hardening material G with a thick grain into the modified body A. The improvement body A can be made to the ground surface or a certain depth. At this time, when the self-hardening material is pressed in, it is from the soil column The bottom of the spray tube 3 is slowly pulled upward, and the self-hardening material G will be slowly filled from the bottom to accumulate. Furthermore, while maintaining the immersion length in the self-hardening material G of the spray tube 3 described above, It is better to press in. The above impregnation (please read the precautions on the back before filling in this page) Binding · Binding-5k scale of this paper, use Chinese National Standard (CNS) A 4 specifications (210 X 297 and more) 18- ： T99316 Λ 6 B 6 The standard of the Ministry of Economic Affairs along Mongong Cooperation Du Wuhong 5. Description of the invention (^ The length is preferably 30 cm or more, more preferably 50 cni or more. The first specific example of the aforementioned second form is an example in which the relaxation tube 1 and the injection tube 3 are used individually, but as shown in FIG. 19 As shown in FIG. 20, an example in which the formation of the primary relaxation region S ′ and the secondary relaxation region S 2 is performed by the same injection tube 3A and the injection tube 3A is also pressed into the self-hardening material G is also shown. As the injection tube 3A of the second specific example of the second form, for example, the inner tube 33 and the outer tube 34 shown in FIG. 21 can be used as main constituent elements, and a flow path 35 is provided in these gaps. Using the inner tube 33 as a flow path of the self-hardening material G, the flow path 35 forms a flow path of each high-pressure water pressure to the first injection nozzle 3 1 A and the second injection nozzle 3 1 B. The first injection nozzle 3 1 A is provided on the outer peripheral surface of the injection tube 3 A. At the base of the first injection nozzle 3 1 A, as in the first specific example described above, the bulging Jilt Guo protrudes outside the tube 3 ◦It is integrated. On this drum ______________________ — ..... Outlet injection section 3 ◦A second injection nozzle is provided outward of the modified axis so that the high-pressure water reaches the injection nozzle farther than the outer end of the outflow section 30 3 1 B. Furthermore, an injection port 32 of a self-hardening material is formed on the tip side of the first injection nozzle 3 1 A. When such a spray tube 3A is used, first, as shown in FIG. 19, the high pressure water is sprayed from the first spray nozzle 3 1 A, and the spray tube 3 A is inserted to a certain depth in the floor. At this time, the hole water can be discharged from the injection port 32. Next, when reaching a certain depth, as shown in FIG. 2 ◦, while spraying the spray tube 3 A and rotating it, only high-pressure water is sprayed from the second spray nozzle 3 B, forming 2 outside the first relaxation zone S 1 Sub-relaxation zone S 2 and at the same time from the note (please read the precautions on the back and then fill out this page).-• 6 · This paper uses the Chinese standard (CNS) A 4 specifications (210x29V public) -19 -199916 Λ 6 13 6 V. Description of the invention (j The outlet 32 presses the self-hardening material G. The self-hardening material G makes the modified skull A a certain length. Figure 2 2 and 2 3 show the third of the second form As a specific example, before the injection pipe 3 is inserted into the ground, the casing 4 is used to dig the casing with the tip of the bulging injection section 30 and a radius greater than the axial distance of the injection pipe, and then inserted into the casing 4 The injection tube 3 is in a state where the outer shell is removed. During the rotation of the injection tube 3, high-pressure water is sprayed from the injection nozzle 31 to relax the ground, and at the same time, the self-hardening material G can be pressed from the injection port 32. Ministry of Economic Affairs梂 擂 准 X; Α 工 消 諀 Cooperative Society ¾ As the bulging spraying part of the present invention, can As shown in Fig. 24, a plurality of, for example, two subdivisions are provided in the growth direction. At this time, it is indeed possible to insert the injection area of the swelled jet section 3 ◦ A from the first jet nozzle 3 1 A of high-pressure water to swell the jetted section 3 In the insertion area of Ο B, the high-pressure water from the second injection nozzle 3 1 B is formed by relaxation, and finally the high-pressure water from the third injection nozzle 3 1 C will cause a bulging length that is greater than that of the bulging injection section 3 Ο B A modified body with a large radius. Furthermore, in this example, there is no need for the first specific example of the second form. First, the relaxation tube 1 is used to relax the ground, and then the injection tube 3 is inserted, and only the injection tube 3 C , You can insert it, relax the ground, and press the self-hardening material from the injection port 32 after reaching the lowermost part. When developing this idea, you can set up a bulge like a triangular blade as shown in Figure 25 The injection part 3 0 C makes the injection nozzles 3 1 E, 3 1 E provided at the inclined part thereof ...... used for relaxation for inserting the injection tube 3 C, and at the same time, in order to increase In order to improve the diameter, you can use the injection nozzle 3 1 D from the outermost part to spray high-pressure water to the periphery. -20-(please first Read the precautions on the back and then fill out this page) This paper is printed on China's 5th standard (CNS) Grade 4 (210x297). 1S99 Λ G Β6 Printed by the Central Ministry of Economy, Ministry of Economic Affairs, Cooperative Society 31 V. Inventions Description (j, moreover, as shown in FIG. 26, downward spray nozzles 3 1 E, 3 1 E can be provided below the bulging spray part 30, as inserting the spray tube 3 For relaxation of C. Fig. 27 is provided above the bulging spray part 30 with a stirring blade 40, which will make the relaxation disc more slack, and at the same time, if the rotational resistance of the spray pipe 3 C is too large, due to the adjacent It is judged that it is not a relaxation diameter, so it can also be used as a judgment index member. In the above example, the bulging jet part protrudes outward from the tube from the pulping. However, at least the bulging jet part may be provided as long as it "protrudes to the outside of the tube in the expanded diameter jetting state", as shown in FIGS. 28 and 29 As shown, it does not protrude before reaching a certain depth, but when it reaches a certain depth, for example, the blade 41 of the wing-spreading linkage mechanism is provided, and when the diameter expansion is required, the blade 41 of the wing-spreading linkage mechanism is expanded like FIG. 29. The blade 41 of the wing-spreading link mechanism can be pressed into the outer tube 42 from the ground to spread the wing. 43 is a hole-drilling blade. Furthermore, as long as a certain length in the depth direction of the ground is enlarged, the diameter of the mouth side can be made small as shown in FIG. 30, and the diameter of the improved body can be made larger. In the above examples of Figs. 24, 29, and 16, the self-hardening material is falsely pushed in from the injection port 32 of the injection tube inserted to a certain depth, resulting in an improved body. Although it is also possible to use another special pressure pipe to press in the self-hardening material, the workability will be significantly reduced. Furthermore, in the foregoing example, if the distance between the lowermost injection nozzle and the self-hardening material injection port 32 is at least 50 cm, or it is better to ensure that lm or more, there will be no high-pressure water and self-hardening material. The interference of G, (please read the precautions on the back before filling in this page) This paper uses the 5K standard side asas standard (CNS) A 4 specifications (210x297) and -21-丄 999ib Λ 6 Β6 Ministry of Economic Affairs standard XJU Engineering Consumers Cooperative Society 公 Fifth, the description of the invention (and a good improved body can be obtained. In the above-mentioned second form, the soil produced by the intrusion of the self-hardening material can also be separated into supernatant liquid and concentrated soil Then, use the liquid on it. This example is shown in Figure 31. That is, a mud groove 50 is provided at the nozzle of the high-pressure injection tube 3, and the self-hardening material G is replaced in the high-pressure injection tube 20. The mud 51 rising from the hole wall is pumped up by the pump 52, and is separated into the upper liquid 51A and the concentrated soil 51B by the separation device 53, and the upper liquid 51A is stored in the storage tank 58 by the pump 54 once as a lower Use the high-pressure water to form a loose soil column. Use the clarified liquid as a sex cut At the same time, because it contains small particles, the machinability will be improved.-On the other hand, the concentrated soil 5 1 B will be supplied to the agitator 5 6 through the hopper 5 5, where it is mixed with the self-hardening material G, and then pumped 5 7 Filled into the high-pressure injection pipe 20, and can also be used as a self-hardening material for replacement. At the same time, when the concentrated mud worker is reused, the mud water treatment of this part will be reduced. Furthermore, the mud 5 1 Without treatment, it is directly added to the self-hardening material G. According to the present invention, since a high-strength improved body can be obtained, a strong-strength body can be created. At the same time, the body can also be connected as shown in FIG. 3 2 As shown, it causes a variety of pillars or pillars (continuous walls). At this time, in addition to only using self-hardening materials to improve the body, it is best to put one or more pins or appropriate shapes of steel (called Reinforcement) inserted into the improved body to reinforce the improved body. Moreover, when the column row or the column row wall is caused, a spray tube will become small and lightweight, so it can hold a plurality of branches at 1. The internal standard paper is up to the standard of China Burmese Standard (CNS) Grade 4 Grid (2 丨 0 X 297 public garbage) (please read the precautions on the back before writing this page) Order-Line · 9S9 Λ 6 Β 6 Ministry of Economic Affairs Standards Advise: 3 Workers Eliminate Cooperative Counselors! | 1 5 3. Description of the invention (y descending machine, the spray if tube group is raised and lowered at the same time to improve the site. Furthermore, in the above example, after the site is relaxed, the injection of high-pressure water from the injection tube may be stopped to spray In the state where the depth of the tube is fixed, only the self-hardening material is injected. The third aspect of the present invention is that the injection tube with the bulging injection part is inserted into the ground without forming a soil column in advance. Mud pillars Ο Figure 1 9 and Figure 20 傜 In order to explain the first specific example of the third form, 3 A is a spray tube and a drill bit in front of the tip, and a jet nozzle 31A with high-pressure water on the peripheral wall of the tip, Also, above the injection nozzle 31A of the injection tube 3A, there is provided a bulging injection portion 30 that protrudes at least outside the tube in the expanded-diameter injection state, and the bulging injection portion 3 is provided with an improved axial center High-pressure water jet nozzle 3 1 B, and here the jet The nozzle 3 1 A is formed with an injection port 3 2 of a self-hardening material near the tip edge. Using such a spray tube 3A, first, as shown in FIG. 19, high-pressure water is sprayed from the first spray nozzle 3 1 A to the top The distance is the same as or longer than the length of the bulging spray part 30, and the spray tube 3A is rotated to a certain depth inserted into the ground. At this time, the hole-punching water can be discharged from the injection port 32 as necessary. By the spray of high-pressure water, the site will be relaxed and will be caused by a soil column represented by a relaxation zone S /. Next, when reaching a certain depth, as shown in FIG. 20, while the spray tube 3 A is rotated and pulled up, only high-pressure water is sprayed from the second spray nozzle 3 1 B, which is formed outside the one-term relaxation region S 2 2 times relaxation zone S 2, at the same time (please read the precautions on the back before writing this page) Binding · Binding-Line. This paper 56: Standard use Chinese Standards (CNS) A 4 specifications (210x297 public waste) χ99916 Λ 6 Β 6 Ministry of Economic Affairs Standards>! ';: ^ Industry and Consumer Cooperatives 卬 54 V. Description of the invention (d The injection port 32 presses the self-hardening material G. The self-hardening material G makes the improved body A A certain length. From the two-value jet nozzles 3 1 A, 3 1 B, high-pressure water W can be made to correspond to the properties of the site (soil, softness, etc.) or the purpose of the improved diameter of 80 ~ 350kg / cm2 as in the previous example. (Experimental example) The inventors used an injection tube roughly similar to FIG. 7 to carry out an improvement experiment on a gravel powder-filled site. Site relaxation fluid: high-pressure water (pressure 200kg / cm2), with an injection volume of 80 Liter / minute, cutting speed: 30 minutes / m, using modified materials: cement, surplus soil, sand-cement and surplus soil mortar. On the one hand, as a comparative example, improvement using the CCP method was also carried out. After a few days after construction, it was mixed to observe the improvement of the consolidated body. As a result, the present invention is shown in FIG. 33 and FIG. The shape shown in 34, and in the comparative example, it is assumed that the improved shape shown in Fig. 35 and Fig. 36 is non-uniform. Moreover, it is in a state where many clumps are drawn as shown in the consolidation body, which is poor uniformity. Therefore, it was found that according to the present invention, it can be improved as a consolidated body having an ideal shape than the previous example. [Industrial Application Field] As described above, according to the present invention, there will be The improved strength will increase, and it can be constructed with simple and small equipment, which can result in the advantages of limited compaction effect or uniform and strong modified body with only the purpose. At the same time (please read the precautions on the back before filling this page ) Installation--Line · This paper scale is used in the SS home standard (CNS) A 4 specifications ⑵0x297 g) J :) A 6 B6 199916 V. Description of the invention (, It will surely cause an improved body of large-diameter construction site. (Please read the back first (Notes to fill out this page) A brief description of the drawings: Figure 1 is the first project outline showing the first specific example in the construction order, Figure 2 is the second showing the first specific example in the construction order The project summary diagram, the third picture is the third project summary picture showing the first concrete example according to the construction order, the fourth picture is the fourth project summary picture showing the first concrete example according to the construction order,-the fifth picture is from Figure 6 is a schematic diagram showing the moving process of the modifier, Figure 7 is a schematic diagram of other examples, Figure 8 is a schematic diagram of other modified forms, Figure 9 The picture is a schematic diagram of other construction examples. Figure 10 is a schematic diagram of another construction example. The standard of the Ministry of Economic Affairs is Π 工 消 " Cooperative printed fii. Figure 11 is a schematic diagram of an example of soil reuse. , Figure 12 is a cross-sectional view of the main part of the 3-fold tube, Figure 13 is a schematic diagram of an example when press-fitting, Figure 14 is a cross-sectional view of the column row, and Figure 15 is a column row Figure 16 is a schematic diagram of the project according to the modified example of the other device with a mixing blade, -25-The Chinese Standard S (CNS) Grade 4 specification (210x297 gJi) for this paper standard for easy use 19991b Λ 6 136 Central Ministry of Economic Affairs, Ministry of Economic Affairs and Industry, Migong Consumer Cooperative, printed 3i V. Description of invention (Figure 17 is on site Figure 18 is a schematic diagram of the state of the formation of a soil pillar. Figure 18 is a schematic diagram of the construction state according to the second aspect of the present invention. Figure 19 is a schematic diagram of the construction state of other examples. Figure 20 is a diagram of another example. The construction state is important. Figure 21 is a straight cross-sectional view of an example of an injection pipe. Figure 22 is a straight cross-sectional view of the state of the shell establishment. Figure 23 is a straight cross-sectional view of the subsequent pulling process. 2 4 is another diagram of the modified example of the injection tube, FIG. 2 5 is another diagram of the modified example of the injection tube, FIG. 2 6 is a diagram of a more different example of the injection tube, and FIG. 2 7 is provided with The example of the jet tube of the stirring blade is shown in Fig. 28. The figure of the expanded state of the example of the wing type is shown in Fig. 28. The figure of the expanded state of the example of the wing type is shown in Fig. 29. A schematic diagram of an example of a site improvement form. Figure 31 is a summary diagram of another example of soil reuse. Figure 32 is a column row or column row wall. Example plan view, Figure 3 3 is a straight cross-sectional view of the improved body according to the method of the present invention, Figure 3 4 is a horizontal cross-sectional view, Figure 3 5 is a straight cross-sectional view of the improved body according to the jet slurry method f Figure 36 is its horizontal section. (Please read the precautions on the back before filling in this page) This paper uses the China National Palm Standard (CNS) A4 specifications (210x297 gong) -26-