200842227 九、發明說明： 〔發明所屬之技術領域〕 本發明係為一種場鑄基樁樁底擴孔灌漿工法，其主要在將樁 底污沉泥清除形成擴孔，並在灌漿後在樁底形成堅實的樁底基 部，可承受更大承載。 〔先前技術〕 在基樁工程中，必須在樁底作擴孔灌漿形成以構成較堅實的 底邛，使基樁底部能對對基樁提供較大的承載力。尤其超高建築 物下方的樁群，其樁底的承載能力必須維持在安全設定值以上， 以避免將來因殘留的沉污泥被壓縮，造成基樁下陷，使建築物發 生龜裂或傾斜情形。 核准專利公告的公告第452618號「基樁樁底污泥處理工 法」’即是一種在將基樁底部污泥清除，並在灌漿後在基樁樁底形 成堅實底部的玉法。此種工法錢其他祕底㈣的1法中，都 採，在基樁_埋刚⑽以上鋼管，待基樁完成，混凝土達到 預疋強度後，再以大賴具配合高強度鑽桿及翻進行鑽穿孔， 施以高壓沖洗、低壓洗孔，而在基樁底部形成狐，續灌漿入該 擴孔内而在基樁底端形成堅實的。 、前述習用工法中’鋼管本身的材料成本，以及預埋鋼管的工 成本都s u成基樁製作成本的提高。在鋼管預埋部份的施工 時’常因鋼性鐵材賴不易而有彎讀形，而必絲將鋼管處理 5 200842227 成直線狀；又，鋼筋籠加步 衣鋼官蚪，必須使鋼管成鉛直狀，以致 鑽下放進行鑽孔操作。故預 製作成本的咖-。料晴㈣㈣=基4 〔發明内容〕 2㈣主要目的’在提供—種場鑄基樁樁底擴孔灌裝工 裝費用。基_無需加裝馳鋼管，而可節省材料㈣，以及組 @的X目的’在提供—種場鑄基樁樁絲孔灌漿工 =工=_機__孔功，可_具 施工更為便捷。 ^ =_供的場鑄基樁樁底狐麵碰，其主要在 =賴就必須施作的一種工法，其施工步驟包含： ·在把1^現場選定場铸基樁，並確認孔位及鑽機定位； 該基樁内已預埋第—檢測管及第二檢測管。 b 鎮!：作#: ΐ基樁樁底混凝土達初凝定型的程度 化者弟-、第二檢測管内部分別向τ進行第—次鑽孔作業， 、以鑽穿該基樁而戦對應的第—觀及第二鑽孔。 - 作業:在基樁混凝土完全翻後，沿著第-鑽 心本二部分別向下進行第二次鑽孔作業，以在基樁樁 *的场中戰對應的第—延伸孔及第二延伸孔。 =歷噴射沖洗作業：利闕缝泵將雜清水第-、第二延伸 孔’而在該基樁樁底形成擴孔。 6 200842227 乂低壓灌漿作業：灌漿作 漿，而在基^φ 湧出後即完成低壓灌 基4底挪奴•實，具奴大的基礎者。 〔實施方式〕 制的基樁樁底擴孔灌紅法，都是在基樁製作完成後施 伽較大型_孔機進行觀作業，同時必須π徑較大 的預埋鋼管糊轉物，備㈣權且需要較長 的施工期與教f工期。申請人有紐此，騎創-齡基樁尚未 製作完成時，即可進行觀作業的紐細氣賴工法，以縮 短工時。 本發明所揭不之場鎢基樁樁底擴孔灌聚工法，其主要針對場 鑄里基樁1()細清除祕、贼的玉作而形祕孔，續進行樁底 擴孔的灌漿，而在樁底形成較堅實的支撐，以提高基樁B承載力。 製作場鎢型基樁1 ◦時，係先將鋼筋籠（圖上未示出）置入已 開挖元成祕位。再將錢土注确筋軸，而構成基樁1〇。該 基樁10内的鋼筋龍係固有第一檢測管2〇與第二檢測管刈，以作 為檢測基樁10灌漿情形的導引管。 請參閱圖一所示本發明的施工步驟流程圖。本發明的施工步 驟包含： a·選定樁位（流程1) ·· 由負責基樁施工的工程人員選定基樁1〇，交由負責樁底灌 200842227 程師，進行樁底職工作。請_二，基樁10為 一 =基樁。該基樁1G _ 20與第 2 =。#_G紅人員完祕樁1_凝土作業完 成後，即父由負責樁底灌浆作業的人員準備進行樁底灌浆工程。 b.進行第—次鑽孔作業（流程2)，· =«===_刪，賴—、第二檢 而形成對應:第=行及 孔時，係仿其扶1Λ 、 及弟一鑽孔12，如圖三所示。鑕 機40移至孔t 檢測管20、30為孔令心點，將小型鑽孔 行鑽孔。4 t於對準孔位調整校對鑽孔機4〇水平度，並進 10的、、曰1土、％4則官20、30可為具可撓性的管體。當基樁 檢^〇、Slit ’會_平_、，使雜—、第二 鑽捍41為且有了^線的狀態。小型魏機4G所使用的 性管製成^ 喊體。闕桿41材略料曲的可撓 狀=1°，==^_將__成長的管 基椿10挟二 應該檢測管20、30曲度而略作彎曲。 低。故丨的賴土在凝_初期已凝結成-體，強度較 、小型觀機40的動力就足以貫穿樁底。仁強度較 仃弟二次鑽孔作業（流程3); ==10錢土完全凝_，沿著第—軌1 =^_第-延伸孔13及第二延伸孔14，如圖四所的示。= 可避免土尚未完全凝固時，不能進行第二次鑽孔，如此 避免樁底被破壞。該第-、第二延伸孔13、14的深度，須鑽 200842227 至設計高程。該第一、第二延伸孔13、14的深度，突出基樁10 之底部的深度，依地層性質作適當的選擇。 d·高壓喷射沖洗作業（流程4): 其工作性質係利用超高壓泵導入清水沖刷第一、第二延伸孔 13、14。對第一延伸孔13進行高壓喷射沖洗作業時，係將壓力 南達50kg/cm2〜働kg/cm2清水以送入第一延伸孔13内，進行 高壓喷射清水沖洗，如圖五所示。作業過程中，同時上昇鑽桿， 亩鑽柃岫端上昇到檢測管2〇的底部，即來回反覆清洗多次，直 到π水由檢測官20溢出才可完成。第二檢測管3〇也是以同樣 ，作業方式，進行高壓噴射沖洗。第—、第二檢測管2()、3〇都 完成沖洗工作時，才可算完成基樁1〇樁底的高壓喷射沖洗作 業。本流程4的工作目的，為將基才舂10底部之沉泥或污泥12 充分完全與混凝土分離，使混凝土表面被處理成乾淨，同時也 會在基樁10樁底形成一擴孔15。 e·低壓灌漿作業（流程5)·· 灌浆作業時由一檢測管灌漿，灌漿壓力控制在0〜50kg/on2 ’待 另-檢測管有水泥濃衆湧出後即完成低壓灌漿工作，如圖六所 TJn 〇 本發明步驟d.的緒噴射沖洗（流程4)，可將與基樁10捲 S面11泥與樁底分離，以及_清水的壓力將基樁1G樁底之 /儿/尼逼出檢測管外。 ^發=驟e.的低壓灌漿作業（流程5)， ^另=浙即形姐泥漿由下往上漏的方式。如此，可將 々水及些微未洗㈣污泥糾，使在樁底卿成的基礎16 9 200842227 為一體式，且無污泥與沉泥。經由低壓灌漿作業（流程5 泥聚確實填充人基樁底部的擴孔15内。故經由本發明處理後^ 樁10，其底部之基礎16更為堅實，具有更大的承載能力。土 本發明在步驟e·低壓灌漿作業（流程5)的後面，可增加— 補漿作業（流程6)。由於第-、第二檢測管2〇、3〇内的水泥濃裝 在凝固後，其内的水泥高度會因水分流失而下將，故在第—:第 二檢測管20、30内補充水泥濃聚，以填滿第一、第二檢别弟 30。 本發明在施鱗，可在基樁則簡埋二支與檢測管2〇、3〇 口徑相近的預埋管（圖上未示出），作為續孔作業、沖洗作業、灌 ^業的雜。使用預埋管來取代檢辭時，因觀管為鋼管且 安裝時已秘直狀’故使用_桿射融^絲。而使用的鑽孔 機為小型鑽孔機。 ^ 綜上所陳’本發明所提供之「場鑄基樁樁底擴孔灌聚工法」， 其確實能將基樁樁底之沉泥及污泥清除於檢測管外，故可在灌裝 後在基樁樁底形成-高承載力的基礎，㈣於作為高建築物的^ 載基礎。本發明在場鑄基樁尚未完全製攸鱗，就可進行鑽孔 工作，可基樁及其基礎的製作工時。本發_使則、型鑽孔 機進行鑽孔，又近一步降低機具的成本。 、 以上所述係湘雛實關詳細·本發明，轉限制本發 明之範圍。大凡熟知賴技藝人士皆_瞭，適當而作些微的改 變及調整，㈣不失本發明之要_在，林·本發明之精神 和範圍。 200842227 〔圖式簡單說明〕 圖一為本發明工法的作業流程圖。 圖二為基樁的剖面示意圖。 圖三為本發明作動示意圖一。 圖四為本發明作動示意圖二。 圖五為本發明作動示意圖三。 圖六為本發明作作動示意圖四。 編號說明： 1〜6……作業流程 10··· ...基播 11··· …第一鑌孔 12··· ...第二鑽孔 13··· …第一延伸孔 14·" …第二延伸孔 15··. …擴孔 16··. ...基礎 20··· …第一檢測管 30··· …第二檢測管 40... ...鑕孔機 41.·. ...鑽桿 42··· ...鑽頭200842227 IX. Description of the invention: [Technical field to which the invention pertains] The present invention is a reaming grouting method for a field-cast pile foundation pile, which mainly removes the sludge from the bottom of the pile to form a reaming hole, and at the bottom of the pile after grouting Forms a solid base of the pile to withstand greater load. [Prior Art] In the foundation pile project, it is necessary to form a reaming grout at the bottom of the pile to form a relatively solid bottom sill, so that the bottom of the pile can provide a large bearing capacity for the pile. Especially for the pile group under the ultra-high building, the bearing capacity of the pile bottom must be maintained above the safety setting value to avoid the future collapse of the pile due to the residual sludge, which causes the pile to sag and cause the building to crack or tilt. . Approved Patent Notice No. 452618, "Sludge Treatment Method for Pile Foundation Bottom Piles" is a jade method in which the sludge at the bottom of the pile is removed and a solid bottom is formed at the bottom of the pile after grouting. In the other method of the other secrets of the method (4), the steel pipe is taken in the pile _ buried just above (10). After the pile is completed, the concrete reaches the pre-twist strength, and then the high-strength drill pipe is used to match the high-strength drill pipe. Drilling and perforating, applying high pressure flushing and low pressure washing, and forming a fox at the bottom of the pile, continuously grouting into the reaming hole to form a solid at the bottom end of the pile. In the above-mentioned conventional method, the material cost of the steel pipe itself and the labor cost of the pre-buried steel pipe are all increased. In the construction of the pre-embedded part of the steel pipe, it is often difficult to have a curved shape due to the rigid steel material, and the steel wire will be processed in a straight line; 2008, the steel bar is added to the steel official residence, and the steel pipe must be made. The lead is straight, so that the drill is drilled and drilled. Therefore, the pre-production cost of the coffee -. Material clear (4) (4) = base 4 [invention content] 2 (four) main purpose 'in the provision of - field casting base pile bottom hole filling and filling equipment costs. Base _ no need to install Chi steel pipe, but can save materials (four), and group @ X goal 'in the supply - seed field casting pile pile wire hole grouting work = work = _ machine __ hole work, can _ with construction Convenient. ^ = _ The field of the cast-in-situ pile bottom fox face hit, which is mainly used in the construction method of the Lai, the construction steps include: · Selecting the field in the 1 ^ site to cast the foundation pile, and confirm the hole position and Positioning of the drilling rig; the first detecting tube and the second detecting tube are embedded in the pile. b town!:作#: The degree of the initial setting of the concrete at the bottom of the pile foundation is the same as that of the initial setting of the concrete, and the second inspection tube performs the first drilling operation to the τ, respectively, to drill through the pile. The first and the second hole. - Homework: After the pile concrete has been completely turned over, the second drilling operation is carried out down the second part of the first core, respectively, to warn the corresponding extension hole and the second extension in the field of the foundation pile*. hole. = Sweeping operation: The quilting pump will ream the bottom of the pile by placing the first and second extension holes of the miscellaneous water. 6 200842227 乂Low-pressure grouting operation: grouting and grouting, and after the foundation ^φ emerges, the low-pressure irrigating foundation 4 is completed. [Embodiment] The method for reaming and filling the bottom of pile foundation piles is to carry out the operation of the large-scale _ hole machine after the completion of the foundation pile preparation, and at the same time, the pre-embedded steel pipe paste with a large π diameter must be prepared. (4) Right and need a long construction period and a teaching period. Applicants have the right to do this. When the ride-in-age pile has not been completed, it can be used to observe the workmanship method to shorten the working hours. The method for reaming and filling the bottom of the tungsten pile in the field of the invention is mainly for the fine hole of the field casting pile 1 () finely clearing the secret and the thief's jade, and continuing to grout the bottom of the pile. And a relatively solid support is formed at the bottom of the pile to increase the bearing capacity of the pile B. When making a tungsten-type pile 1 ,, the steel cage (not shown) is placed in the secret of the excavated element. Then add the money to the shaft, and form the pile. The reinforcing bar in the pile 10 is inherently the first detecting tube 2〇 and the second detecting tube 刈 as a guiding tube for detecting the grouting condition of the pile 10. Please refer to the flow chart of the construction steps of the present invention shown in FIG. The construction steps of the present invention include: a. Selection of pile positions (Process 1) ·· The foundation piles are selected by the engineering personnel responsible for the foundation pile construction, and the piles are under the responsibility of the pile bottom irrigation 200842227, and the pile bottom work is carried out. Please _ two, the pile 10 is a = pile. The foundation pile 1G _ 20 and the second =. #_G红人完秘桩1_ After the completion of the concrete operation, the father is responsible for the pile bottom grouting project. b. Perform the first drilling operation (flow 2), · =«===_ delete, Lai-, and the second inspection to form the corresponding: when the = row and the hole, it is like a support, and a younger brother Hole 12, as shown in Figure 3. The machine 40 is moved to the hole t. The detecting tubes 20 and 30 are hole-centering points, and the small-sized drilling holes are drilled. 4 t Adjust the alignment level of the drilling machine in the alignment hole position, and enter the 10, 曰1 soil, and the %4 官 20, 30 can be flexible tubes. When the pile is inspected, the Slit ’ will be _ _, and the second boring 41 will be in the state of the line. The sex tube used in the small Wei 4G is made into a body. The mast 41 material is slightly flexible and has a flexible shape = 1°, ==^_ The tube base of the __ growth is 10挟2 The tube 20 and 30 should be detected to be slightly curved. low. Therefore, the rammed earth has been condensed into a body at the beginning of the condensing, and the strength of the small spectator 40 is sufficient to penetrate the bottom of the pile. The strength of the kernel is lower than that of the younger brother (flow 3); ==10 the money soil is completely condensed _, along the first rail 1 = ^_ the first extension hole 13 and the second extension hole 14, as shown in Figure 4. Show. = Avoid drilling the second time when the soil has not completely solidified, so as to avoid damage to the pile bottom. The depth of the first and second extension holes 13, 14 shall be drilled from 200842227 to the design elevation. The depth of the first and second extension holes 13, 14 and the depth of the bottom of the pile 10 are appropriately selected depending on the nature of the formation. d·High-pressure jet flushing operation (flow 4): The working property is to flush the first and second extending holes 13 and 14 by using the ultra-high pressure pump to introduce clean water. When the first extension hole 13 is subjected to a high-pressure jet flushing operation, the pressure is up to 50 kg/cm2 to 働kg/cm2 of fresh water to be sent into the first extension hole 13, and high-pressure jet water rinse is performed, as shown in Fig. 5. During the operation, the drill pipe is raised at the same time, and the auger end of the auger rises to the bottom of the detection tube 2〇, that is, it is repeatedly washed back and forth until the π water is overflowed by the inspection officer 20 to complete. The second detecting tube 3 is also subjected to high-pressure jet washing in the same manner. When the first and second detecting tubes 2() and 3〇 are all flushed, the high-pressure jet flushing operation of the pile bottom 1 pile bottom can be completed. The purpose of this process 4 is to completely separate the mud or sludge 12 at the bottom of the base 10 from the concrete, so that the concrete surface is treated to be clean, and a reaming hole 15 is formed at the bottom of the pile 10. e·Low-pressure grouting operation (Process 5)·· Grouting is carried out by a test tube during grouting operation, and the grouting pressure is controlled at 0~50kg/on2 'When another test tube has cement crowded out, the low-pressure grouting work is completed, as shown in Figure 6. The TJn 〇 喷射 喷射 d d d d d d 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程 流程Out of the test tube. ^ 发=STEP e. Low-pressure grouting operation (flow 5), ^ another = Zhejiang is the way the sister mud leaks from bottom to top. In this way, the drowning water and some micro-unwashed (four) sludge can be corrected, so that the foundation of the pile bottom is 16 9 200842227, and there is no sludge and sediment. Through the low-pressure grouting operation (flow 5 is indeed filled into the reaming hole 15 at the bottom of the man-made pile. Therefore, after the post-treatment of the pile 10 by the present invention, the foundation 16 at the bottom is more solid and has a greater bearing capacity. After the step e· low-pressure grouting operation (flow 5), the grouting operation (flow 6) can be added. Since the cement in the first and second detecting tubes 2〇, 3〇 is solidified, it is inside. The height of the cement will be lowered due to the loss of water, so the cement is concentrated in the first: second detecting tubes 20, 30 to fill the first and second inspectors 30. The present invention is applied to the scales. The pile is embedded with two pre-embedded tubes (not shown) with the diameter of the detection tube 2〇 and 3〇, which are used as the re-hole operation, flushing operation and irrigation industry. The pre-buried tube is used instead of the test. In view of the fact that the tube is a steel tube and has been straightened during installation, the _ rod is used to melt the wire. The drilling machine used is a small drilling machine. ^ In summary, the "field casting" provided by the present invention The method of expanding the hole at the bottom of the pile foundation can effectively remove the sludge and sludge from the bottom of the pile pile outside the detection tube. After filling, the foundation of the high pile capacity is formed at the bottom of the pile foundation, and (4) is used as the foundation of the high building. The in-situ cast pile of the present invention has not yet fully prepared the scale, and the drilling work can be performed. The production time of the pile and its foundation. The hair _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Scope. Most people who are familiar with Lai skills are _, appropriate to make minor changes and adjustments, (4) without losing the essence of the invention _, Lin·the spirit and scope of the invention. 200842227 [Simple description of the diagram] Figure 1 Figure 2 is a schematic cross-sectional view of a pile. Figure 3 is a schematic view of the operation of the present invention. Figure 4 is a schematic view of the operation of the present invention. Figure 5 is a schematic diagram of the operation of the present invention. Figure 6 is a schematic diagram of the operation of the present invention. Figure 4. No. Description: 1~6...Operation flow 10···...Base broadcast 11···...First pupil 12···...Second hole 13···...First extension Hole 14·" ... second extension hole 15··. ... reaming 16··. ...basis 20··· ...first detection tube 30···...second detection tube 40...boring machine 41.·....drill rod 42···...bit