201204901 六、發明說明： 【發明所屬之技術領域】 八支樁群，尤其是有關於-種包 含支按規疋的構k物的多個基礎樁的基礎樁群。 匕 【先前技術】 先刖，支樓規定的構造物的多㈣# 要求的支撐力更大 自所配置陳置’所絲的找林_航。m 支撐低層階的基礎樁與支撐高層階的基礎樁中，對後者所 因此，揭示有可根據所要求的總支樓力 撐力的基(例如，錢翻絲i、翻文|2端支 [先前技術文獻] [專利文獻] [專利文獻1]日本專利特開平1G 237866 3-4頁，圖1 ) m、弟 [專利文獻2]日本專利特開平7_11637號公報 頁，圖1) 、巾w 句上述專利文獻1中所揭示的發明是使用前端裂備有擴 =自如的擴翼挖掘刀的挖掘棒(1Ό撕地面形成挖掘孔的 且為如下的發H規定的深度使擴翼制刀擴大 、旋轉，形成與經擴大的擴翼挖掘刀的直徑相同程度的大 =的球根部，進向雜部注人水泥乳㈣形成擴大固 艮球根，並且於挖掘孔中沉設混凝土樁。 因此，當於—個基礎樁與另一個基礎樁中所要求的總 4 201204901 支撐力不同時，必需使各基礎樁中所形成的擴大固根球根 的外徑不同。即，必需準備多種擴翼挖掘刀或施工機械， 並且需要於每個基礎樁中逐一控制擴翼挖掘刀的擴徑量這 一繁雜的作業。因此，存在施工成本上升這一問題。另外， 存在如下的問題：有弄錯擴翼挖掘刀的擴徑量的設定，而 形成無法支撐所要求的總支撐力的基礎樁的風險。 另外，上述專利文獻2中所揭示的發明是於樁本體的 前端部的外周面固設有螺旋翼的發明（以下，稱為「旋轉 貫入鋼管樁」<「旋入樁」）’螺旋翼的外徑較佳為樁本體 的1.5倍〜3.0倍左右。而且，當於一個基礎樁與另一個基 礎樁中所要求的總支撐力不同的情況下，必需使各基礎樁 中所固設的螺旋翼的外徑不同。 即，因於一個基礎樁與另一個基礎樁中螺旋翼的外徑 不同，故必需準備多種基礎樁，並且要將該基礎椿旋入所 指定的位置，因此資材管理或施工程序變得繁雜。另外， 施工時（旋入地面時）所產生的扭矩根據螺旋翼的外徑的 大小而不同，因此必需準備對應於該扭矩的大小的施工機 械’施工㈣繁雜。因而，存在獻成本上升這一問題。 【發明内容】 本發明是解決上述問題的發明，其目的在於提供一種 由施工容易，可確實地支#所要求的總支樓力的基礎捲構 成的基礎捲群。 (1)本發明的基礎樁群由切規定的構造物的多個基 礎樁形成，其特徵在於： 201204901 上述夕個基礎樁分別具備樁本體、以及固設於該捲本 體的前端或前端附近的大致螺旋狀的翼，且 上述翼的外徑分別大致相同。 ⑵另外’本發明的—種基礎樁群，其由支撐規定的 構造物的多個基礎樁形成，其特徵在於： 上述多個基礎樁分別具備樁本體、 '以及形成於該樁本 體的則化的擴大固根球根，且 上述擴大固根球根的外徑分別大致相同。 (3)另外，根據對上述多個基礎樁的各個所要求的總 支撐力’決定上述樁本體各自的外徑或壁厚的—者或兩者。 k (4)另外，根據對上述多個基礎樁的各個所要求的總 支撐力，決定形成各個上述樁本體的材料的強度。 (5)上述樁本體為鋼管或混凝土。 [發明的效果] (i) 本發明的基礎樁群針對支撐規定的構造物的多個 基礎樁，使各基礎樁的翼（螺旋翼）的外徑大致相同，因 此可謀求施工資材的均一化，且不存在弄錯設置位置等的 施工^誤。另外，施工（朝地面的旋入）時的旋入扭矩大 致固疋，因此不需要多種施工機械，施工機械的運用變得 容易。進而，每個基礎樁的施工條件被均一化，因此施工 容易且穩定，施工變得迅速。因而，可謀求施工成本的降 低。 (ii) 另外，因各個擴大固根球根的外徑分別大致相 同，故無需準備多種擴翼挖掘刀或施工機械，施工資材的 6 201204901 管理或施讀_籌備、制變得容易。另外，無需於每 ，基礎樁中逐-控制擴翼挖掘刀的擴彳H因此施工變得 谷易，並且施工穩定、迅速。因而，可謀求施工成本的降 低。進而’於每個基礎樁中弄錯擴翼挖掘刀的擴徑量的設 定的情況不存在，因此基礎樁的可靠性提升。 ^為讓本發明之上述和其他目的、特徵和優點能更明顯 易懂’下文轉錄實施例，並配合所，作詳細說 明如下。 【實施方式】 圖1及圖2是說明本發明的實施形態1的基礎樁群的 圖’圖1是示意性地表示整體的側視圖，圖2是示意性地 表不一部分（鋼管樁）的其他例的側視圖。 圖1中’基礎樁群1〇由多個基礎樁la、lb、lc、1(1 構成，且設置於地面9〇下’支撐著構造物8〇。基礎樁la、 lb、lc、Id分別具備鋼管（等同於樁本體）2a、2b、2C、 2d ’以及固設於鋼管2a、2b、2c、2d的前端或前端附近的 大致螺旋狀的螺旋翼3a、3b、3c、3d。而且，螺旋翼3a、 3b、3c、3d的外徑大致相同地形成。 再者’針對各構件的各個或集合各構件而針對相同的 内容，有時省略符號的後綴字「a、b、c、d」的記載來進 行說明。 另外’為了便於說明，表示包含4根基礎樁1的基礎 樁群10，但本發明並不限定基礎樁的根數。 (螺旋翼的外徑） 201204901 對基礎樁la、lb、lc、ld所要求的前端支撐力為 、Qc、Qd，當Qa最大時，螺旋翼％、％、&、％的201204901 VI. Description of the invention: [Technical field to which the invention pertains] Eight pile groups, in particular, a pile group of a plurality of foundation piles containing a structure of a structure.匕 【Prior Art】 First, the support structure of the structure specified by the branch is more (4) # requires more support. m Supporting the foundation piles of the lower-level steps and the foundation piles supporting the high-rise steps, the latter also reveals the bases that can support the total support strength according to the requirements (for example, money reversal i, essay | 2 end branches) [Prior Art Document] [Patent Document 1] Japanese Patent Laid-Open No. 1G 237866 3-4 pages, Fig. 1) m, brother [Patent Document 2] Japanese Patent Laid-Open No. Hei 7_11637, page 1), towel The invention disclosed in the above-mentioned Patent Document 1 is an excavation rod using a flared excavation knives having a front end cracking and a freely expandable boring tool (1 Ό 地面 地面 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 挖掘Enlarged and rotated to form a large root portion of the same diameter as that of the enlarged expanded wing excavation knives, and the incoming miscellaneous part of the cement emulsion (4) forms an enlarged solid bulb and a concrete pile is placed in the excavation hole. When the supporting force of the total 4 201204901 required in the foundation pile and the other foundation pile is different, it is necessary to make the outer diameter of the enlarged root bulb formed in each foundation pile different. That is, it is necessary to prepare a variety of expansion wings. Knives or construction machinery, and need to be in each One of the basic piles controls the complicated operation of the expansion amount of the expanding blade. Therefore, there is a problem that the construction cost increases. In addition, there is a problem that the setting of the diameter of the expanded blade is increased. In addition, the invention disclosed in the above Patent Document 2 is an invention in which a spiral blade is fixed to the outer peripheral surface of the front end portion of the pile body (hereinafter, referred to as "Rotating through steel pipe pile" < "Spinning pile") The outer diameter of the spiral wing is preferably about 1.5 times to 3.0 times that of the pile body. Moreover, when it is required in one foundation pile and another foundation pile In the case of different supporting forces, it is necessary to make the outer diameters of the spiral wings fixed in the respective foundation piles different. That is, since the outer diameters of the spiral wings of one foundation pile and the other foundation pile are different, it is necessary to prepare a plurality of foundation piles. And the foundation is to be screwed into the designated position, so the material management or construction procedure becomes complicated. In addition, the torque generated during construction (when screwed into the ground) is based on the outer diameter of the spiral wing. However, it is necessary to prepare a construction machine that is corresponding to the magnitude of the torque. The construction (four) is complicated. Therefore, there is a problem that the cost is increased. [Invention] The present invention is an invention for solving the above problems, and an object thereof is to provide a construction It is easy to reliably support the basic volume group composed of the basic volume of the total support force required. (1) The foundation pile group of the present invention is formed by a plurality of foundation piles for cutting a predetermined structure, and is characterized by: 201204901 Each of the base piles includes a pile body and a substantially spiral wing fixed to the front end or the front end of the roll body, and the outer diameters of the wings are substantially the same. (2) In addition, the basic pile group of the present invention is The plurality of foundation piles are formed by a plurality of foundation piles supporting a predetermined structure, wherein the plurality of foundation piles respectively have a pile body, 'and a enlarged enlarged root bulb formed on the pile body, and the enlarged root bulb is enlarged The outer diameters are approximately the same. (3) Further, the outer diameter or the wall thickness of each of the pile bodies is determined based on the total support force required for each of the plurality of foundation piles. k (4) Further, the strength of the material forming each of the pile bodies is determined based on the total supporting force required for each of the plurality of foundation piles. (5) The pile body is made of steel pipe or concrete. [Effects of the Invention] (i) The foundation pile group of the present invention is such that the outer diameters of the wings (spiral wings) of the respective foundation piles are substantially the same for the plurality of foundation piles supporting the predetermined structure, so that the uniformity of the construction materials can be achieved. There is no construction error such as setting the wrong position. In addition, the screwing torque at the time of construction (spinning into the ground) is largely fixed, so that various construction machines are not required and the construction machine is easy to use. Further, the construction conditions of each of the foundation piles are uniformized, so that the construction is easy and stable, and the construction becomes rapid. Therefore, it is possible to reduce the construction cost. (ii) In addition, since the outer diameters of the enlarged rooted bulbs are substantially the same, it is not necessary to prepare a variety of flared excavation knives or construction machines, and the construction materials are easy to prepare or manufacture. In addition, it is not necessary to control the expansion of the expanding blade excavating tool in each of the foundation piles, so that the construction becomes easy and the construction is stable and rapid. Therefore, it is possible to reduce the construction cost. Further, the case where the amount of expansion of the flared excavation blade is incorrectly set in each of the foundation piles does not exist, so that the reliability of the foundation pile is improved. The above and other objects, features, and advantages of the present invention will become more apparent and understood < [Embodiment] FIG. 1 and FIG. 2 are views for explaining a foundation pile group according to Embodiment 1 of the present invention. FIG. 1 is a side view schematically showing the whole, and FIG. 2 is a view schematically showing another part (steel pipe pile). Side view of the example. In Fig. 1, the foundation pile group 1 is composed of a plurality of foundation piles la, lb, lc, 1 (1, and is placed under the ground 9 ' to support the structure 8 〇. The foundation piles la, lb, lc, Id respectively A steel pipe (equivalent to the pile body) 2a, 2b, 2C, 2d' and substantially spiral spiral wings 3a, 3b, 3c, and 3d fixed to the front end or the front end of the steel pipes 2a, 2b, 2c, and 2d are provided. The outer diameters of the spiral wings 3a, 3b, 3c, and 3d are substantially the same. Further, the suffixes "a, b, c, and d of the symbols may be omitted for the same content for each member or each member of each member. In addition, for the sake of convenience, the foundation pile group 10 including the four foundation piles 1 is shown. However, the present invention does not limit the number of foundation piles. (Outer diameter of the spiral wing) 201204901 Pair of foundation piles la The front end support force required by lb, lc, ld is Qc, Qd. When Qa is the largest, the spiral wing %, %, &
徑（均大致相同；)成為可支樓最大的前端支撐力 外徑。 J 、、，者，螺旋翼的板厚可根據前端支撐力的大小而增 減。從而成為合理的規格（例如，相對於1〇〇〇 kN的前端 支撐力而將板厚設定為4〇mm，相對於5〇〇kN的前端支撐 力而將板厚設定為20mm等）。 牙 义另一方面，鋼官2a、2b、2c、2d可具有能夠支撐最大 的前端支撐力Qa的材質、外徑及壁厚（鋼管2與螺旋翼3 大致相同）’亦可具有能夠支撐前端支撐力的Qa、Qb、Qc、The diameters (both are roughly the same;) become the largest front end support force outer diameter of the supportable building. J,,,,, the thickness of the spiral wing can be increased or decreased according to the strength of the front end support force. Therefore, it is a reasonable specification (for example, the thickness is set to 4 mm with respect to the front end support force of 1 〇〇〇 kN, and the thickness is set to 20 mm with respect to the front end support force of 5 〇〇 kN). On the other hand, the steel officials 2a, 2b, 2c, 2d may have a material capable of supporting the maximum front end supporting force Qa, an outer diameter and a wall thickness (the steel pipe 2 is substantially the same as the spiral wing 3) 'and may have a front end capable of supporting the front end. Supporting force Qa, Qb, Qc,
Qd的各個的材質、外徑及壁厚（鋼管2不同，但螺旋翼3 大致相同）。 ^例如，將⑽及加、Da及Dd、ta及td分別設定為鋼 管2a及鋼管2d的容許應力（設計應力）、外徑、壁厚。「Qa = aa.7t.ta. (Da-ta)」、「Qd=ad.7i.td. (Dd-td)」。當假定⑽ = σ(1、ta=td ’「Qa>Qd」時，變成「Da>Dd」，因此亦可 使鋼管2d的外徑Dd小於鋼管2a的外徑Da。 再者，本發明並不限定嫘旋翼3的形態。例如，可具 有設置於鋼管2的側面的1捲以上的1條或多條螺旋面、 或具有於圓周方向上均等地設置的未滿1捲的1條或多條 螺旋面。另外，亦可為如下的螺旋翼：其是設置於鋼管2 的前端所形成的一對k字狀的切口部的大致半圓板，且分 別近似地形成2條螺旋面的--部分。 8 201204901 然而，於先前的較多的現場’對於旋入樁而言，即便 樁徑變化，螺旋翼的外徑（以下，有時稱為「翼徑」）亦由 某一個倍率（自1.5倍至3.0倍為止的任意的值）構成的 情況較多，因此翼控根據每個樁本體的外經而不同。於旋 入樁的施工中，以螺旋翼的阻力來大致決定扭矩。因此， 若設定為各種翼徑，則需要對應於最大的翼徑中所產生的 扭矩的施工機械。 、若利用具有較大的輸出功率的施卫機械來對翼徑小的 樁進行施工，則存在無法對力（扭矩）進行控制，而朝比 規定的深度更深的支撐層貫入的情況。另外，於施理 =，產生*太織制祕支撐層位置的蝴的扭矩值的 史化，而無法進行精度良好的施卫管理等問題。 因此，藉由將翼徑設定為相同， 能夠以大致相同的扭矩進行施 工二 、現％ ’ 適當的施工機械。因而，可降低施亦可選定能力 (鋼管的材質） 取+ 擴底型所==冗，，螺旋翼(前端 力」）佔據總支撐力的大半^^稱為「前端支撲 明中稱為「周面支撑力」或「=所刀擔的支稽力（本發 即便使鋼管的外徑變化，维^ β摩擦力」）比較小。因此， 此，於本發明中，將總幾乎不發生變化。因 同。 與則端支撐力設定為大致相 另一方面，於一 進仃旋轉—方面旋人地面的旋入 201204901 鋼管的外徑大時，與地面的滑動面 :f長時’旋轉所需的扭矩變大。因此，施工速:: 或者轭工機械變得大型(輸出功率大)，施工性， 相反地，當使鋼管的外徑變 ％、 受到，，施工性提升這了獲純轉所需的扭矩 但疋’先前的樁I礎若為旋入樁（鋼管樁） (鋼管部）可使用STK40〇、SKK4〇〇 (拉伸強声: t灯謂、SKK49G (拉伸強度為49G NW) 為了雜規定的勤面積（於承受了所要求的前 = ί負荷）時將鋼管中所產生的轴方向應力抑 制在規疋應力度以内的最少剖面面積），設計時進 變樁徑而使板厚變化的設計。 因此，以下研究使鋼管的外徑變小的情況。例如，冬 將鋼管的外徑為l_mm且鄕為16麵的SKK4二 伸強度為490 N/mm2)的外徑縮小成6〇〇 ^^時，為了確 保同-剖面面積，需要28 mm的壁厚。若如此’則鋼管的 製造成本變咼、或者將鋼管彼此接合的現場焊接時的焊接 時間變長，於成本方面不存在改變鋼管的外徑的優點。 因而，根據如上所述的理由，當使用先前的材料時， 未特意進行像改變鋼管的外徑之類的操作。 (將鋼管設定為高強度的情形） 另一方面，於本發明中，變更鋼管2的材質。即，藉 由使用高強度的鋼管，即便縮小剖面面積（特別是外徑）， 亦可支撐前端支撐力。 ’ 201204901 例如，當將外徑為800 mm、壁厚為12 mm、降伏強 度為325 N/mm2 (相當於先前的SKK490材料）的鋼管變 更成降伏強度為485 N/mm2 (降伏強度上昇至約1,5倍） 的鋼管時，可相對於相同的軸向力而將外徑設定為6〇〇 mm ’將壁厚設定為11 mm。若如此，則施工時的周面的 扭矩被抑制得較小，可使施工機械變得小型。 即，當外徑為800 mm時需要「全周旋轉機」，施工裝 置的規模大，施工性不太良好，相對於此，若將外徑設定 為600 mm ’則可進行利用「3點式打樁機」的施工，施工 性格外地提升。另外’高強度的鋼管因容許扭矩亦變大， 故施工時的扭矩限制亦得到緩和，可期待施工速度的提昇。 再者’鋼管的強度較佳為以拉伸強度來計為500 N/mm2〜1000 N/mm2左右，以降伏強度來計為325 N/mm2 〜700 N/mm2左右。若強度過高，則鋼管的製造費變高、 或者現場焊接性變差，施工的總成本未必降低，因此必需 注意。 (鋼管的其他例） 圖2中’基礎樁30是基礎樁1的其他例，其具備相互 接合的上樁31、中樁32、下樁33、以及固設於下樁33上 的螺旋翼34。螺旋翼34是設置於下樁33的前端所形成的 大致k字狀的切口部的一對大致半圓板，於侧視下分別朝 不同的方向傾斜，當自下樁33的轴方向觀察時，雖然實際 上是一對大致半圓板且相互分離，但被視作大致圓盤。 此時’亦可將上樁31與中樁32及下樁33設定為相同 11 201204901 的材料強度（均為高強度的鋼;另外，亦可將上播3i 及中樁32設定為高強度的鋼管樁，將下樁％設定為普通 強度的鋼管（杨的鋼管），且以不產生_的方式增大壁 厚、。進而’當樁頭部需要難等時，亦可將上樁31設定為 普通強度賴f (先相鋼管），將巾樁Μ及下樁％設定 為高強度_管材。或者，亦可將下樁％或巾樁32設定 為「預應力高強度混凝土（ p则tress扭㈣触抑The material, outer diameter, and wall thickness of each Qd (the steel pipe 2 is different, but the spiral wing 3 is substantially the same). For example, (10) and addition, Da and Dd, ta and td are set as allowable stress (design stress), outer diameter, and wall thickness of the steel pipe 2a and the steel pipe 2d, respectively. "Qa = aa.7t.ta. (Da-ta)", "Qd=ad.7i.td. (Dd-td)". When (10) = σ(1, ta = td '"Qa>Qd" is assumed to be "Da>Dd", the outer diameter Dd of the steel pipe 2d can be made smaller than the outer diameter Da of the steel pipe 2a. Further, the present invention The shape of the rotor 3 is not limited. For example, one or more spiral surfaces of one or more rolls provided on the side surface of the steel pipe 2 or one or more of less than one roll uniformly disposed in the circumferential direction may be provided. The spiral helix may be a substantially semicircular plate provided in a pair of k-shaped notch portions formed at the tip end of the steel pipe 2, and each of which forms approximately two spiral faces-- Part: 8 201204901 However, in the previous scenes, for the screw-in pile, even if the pile diameter changes, the outer diameter of the spiral wing (hereinafter, sometimes referred to as "wing diameter") is also a certain magnification (from Since the value of the arbitrary value is 1.5 times to 3.0 times, the wing control is different depending on the outer diameter of each pile body. In the construction of the screw pile, the torque is roughly determined by the resistance of the spiral wing. If it is set to various wing diameters, it needs to be generated corresponding to the largest wing diameter. Torque construction machinery. If a small-diameter pile is used to construct a pile with a small output power, there is a possibility that the force (torque) cannot be controlled, and the support layer penetrates deeper than the prescribed depth. In addition, in Shihli =, the history of the torque value of the butterfly at the position of the * too woven secret support layer is generated, and the problem of excellent maintenance management cannot be performed. Therefore, by setting the wing diameter to be the same It is possible to carry out construction with approximately the same torque. 2% of the appropriate construction machinery. Therefore, it is possible to reduce the ability to select the material (the material of the steel pipe). Take the + bottom type == redundancy, the spiral wing (front end force) The majority of the total support force is called "the front end support" is called "peripheral support force" or "= the support of the knife (this hair even changes the outer diameter of the steel tube, dimension ^ β friction Therefore, in the present invention, there is almost no change in total. The same as the end support force is set to be substantially the same, on the other hand, in a rotation of the rotation - the rotation of the ground Into the 201204901 steel pipe When the time is large, the sliding surface with the ground: f is long when the torque required for the rotation becomes large. Therefore, the construction speed: or the yoke machine becomes large (output power is large), workability, and conversely, when the steel pipe is made The outer diameter is changed to %, and the construction is improved. This is the torque required for the pure rotation. However, if the previous pile I is a screw-in pile (steel pipe pile) (steel pipe part), STK40〇, SKK4〇〇 can be used. Strong tensile sound: t-light, SKK49G (tensile strength is 49G NW) In order to suppress the axial area of the steel pipe (to withstand the required front = ί load), the axial stress generated in the steel pipe is suppressed. The minimum cross-sectional area within the stress degree) is designed to change the thickness of the pile during the design. Therefore, the following study has made the outer diameter of the steel pipe small. For example, when the outer diameter of the steel pipe has an outer diameter of l_mm and the SKK4 has a diameter of 490 N/mm2, the diameter of the SKK is reduced to 6 〇〇^^, in order to ensure the same-sectional area, a wall of 28 mm is required. thick. If so, the manufacturing cost of the steel pipe is reduced, or the welding time at the time of welding the steel pipes to each other is long, and there is no advantage in that the outer diameter of the steel pipe is changed in terms of cost. Thus, for the reasons described above, when the previous material is used, an operation such as changing the outer diameter of the steel pipe is not intentionally performed. (When the steel pipe is set to a high strength) On the other hand, in the present invention, the material of the steel pipe 2 is changed. That is, by using a high-strength steel pipe, the front end support force can be supported even if the cross-sectional area (especially the outer diameter) is reduced. ' 201204901 For example, when a steel pipe with an outer diameter of 800 mm, a wall thickness of 12 mm and a relief strength of 325 N/mm2 (corresponding to the previous SKK490 material) is changed to a relief strength of 485 N/mm2 (the drop strength rises to approximately When the steel pipe is 1,5 times), the outer diameter can be set to 6 〇〇mm with respect to the same axial force. The wall thickness is set to 11 mm. In this case, the torque of the circumferential surface during construction is suppressed to be small, and the construction machine can be made small. In other words, when the outer diameter is 800 mm, the "full-circle rotating machine" is required, and the size of the construction device is large, and the workability is not good. On the other hand, if the outer diameter is set to 600 mm ', the "three-point piling" can be utilized. The construction of the machine has been particularly enhanced. In addition, the high-strength steel pipe has a large allowable torque, so the torque limit during construction is also alleviated, and the construction speed can be expected to increase. Further, the strength of the steel pipe is preferably about 500 N/mm 2 to 1000 N/mm 2 in terms of tensile strength, and is about 325 N/mm 2 to 700 N/mm 2 in terms of lodging strength. If the strength is too high, the manufacturing cost of the steel pipe becomes high, or the weldability in the field deteriorates, and the total cost of construction does not necessarily decrease, so care must be taken. (Other Example of Steel Pipe) In FIG. 2, the "base pile 30" is another example of the foundation pile 1, and the upper pile 31, the middle pile 32, the lower pile 33, and the spiral wing 34 fixed to the lower pile 33 are mutually joined. . The spiral blade 34 is a pair of substantially semicircular plates provided in a substantially k-shaped cutout portion formed at the tip end of the lower pile 33, and is inclined in different directions in a side view, when viewed from the axial direction of the lower pile 33, Although it is actually a pair of substantially semi-circular plates and separated from each other, it is regarded as a substantially circular disk. At this time, the upper pile 31 and the middle pile 32 and the lower pile 33 can also be set to the same 11 201204901 material strength (all high-strength steel; in addition, the upper 3i and the middle pile 32 can also be set to high strength. Steel pipe pile, the lower pile % is set as a steel pipe of ordinary strength (yang steel pipe), and the wall thickness is increased so as not to generate _. Further, when the pile head needs to be difficult, the pile 31 can also be set. For ordinary strength 赖f (first phase steel pipe), set the pile pile raft and the lower pile % to high strength _ pipe. Alternatively, the lower pile % or towel pile 32 can also be set as "prestressed high strength concrete (p then tress Twist (four)
Concrete，PHC)樁」等。 [實施形態2 :前端固根樁] 圖3是示意性地表示本發明的實施形態2的基礎樁群 的整體的侧視圖。 圖3中’基礎樁群20由多個基礎樁私、扑、4c、如 構成’且設置於地面90下，支撐著構造物8〇。基礎樁如、 仆、4c、4d分別具備樁本體5a、5b、允、％，以及形成於 樁本體5a、5b、5c、5d的前端部的固根球根6a、6b、&、 6d。而且，固根球根6&、6卜6(：、6(1的外徑大致相同地形 成。 再者，針對各構件的各個或集合各構件而針對相同的 内容，有時省略符號的後綴字「a、b、e、d」的記载來進 行說明。 另外，為了便於說明，表示包含4根基礎樁4的基礎 樁群20，但本發明並不限定基礎樁的根數。 本發明並不限定固根球根6的形狀、挖掘鑽頭的 形狀或擴錢料。另外，並不限定施卫方法，可為中掘 12 201204901 工法或預鑽孔工法等任何方法。 (中掘工法） 於中掘工法中，在樁本體的外徑（以下稱為「樁徑」) 發生變化的情況下，於樁本體5的周面部的挖掘時，可按 照最大樁徑而全部以同一徑進行擴大挖掘。或者，亦可改 良挖掘鑽頭，以能夠與樁徑大致同一徑地進行挖掘。 此時，於周面部的挖掘時，可注入水或泥水、或者注 入貧配合的水泥乳漿，但若對樁本體5的周圍過度地進行 擴大挖掘，則周面摩擦力有可能下降，因此更佳為於藉由 負載試驗等進行確認後使用。 另一方面，於周面部的挖掘時’在將水泥乳漿充填於 周面部而形成土壤水泥的情況下，負荷被順利地自樁本體 5朝土壤水泥，然後朝地面9〇傳送，因此即便進行擴大挖 掘，亦不會成為問題。 當到達製作固根球根6的位置時，以機械式或油壓式 打開擴大鑽頭，注入富配合的水泥乳漿，然後對支撐層地 面進行挖掘攪拌，從而製成固根球根6。 於機械式中，在與挖掘時相反的方向進行旋轉來使鑽 頭擴徑。即，朝徑向的外侧突出。另外，於油壓式中，藉 由油壓來使鑽頭擴徑。此時，更佳為使用一種藉由無線或 有線、振動等將鑽頭已擴大的訊息傳送至地 固根球根6確實已製成的機構。 立確“ ,而且，若製成了規定的固根球根6，則於機械式中進 行正旋轉來使鑽頭摺疊’於油壓式巾藉由油壓來使鑽頭縮 13 201204901 從，並將其提起至地上。最後，將樁本體5設置於固板 根6内而結束操作。 ’ (預鑽孔工法） 於預鑽孔工法中，準備可根據樁本體5的外徑，對椿 本體5的周面部進行挖掘_頭。可按照最大樁徑而全部 以同-徑進行挖掘。但是，針對樁徑小的樁本體，挖掘押 亦越小越好，由此使施卫速度提昇，且水泥乳_注二 挖掘排土量減少’因此可期待施工成本的削減。 固，球根6的製成是與中掘卫法同樣地，準備以機 ;、、油堅式來進行擴縮的鑽頭。於製成固根球根6後 起鑽頭。於提起鑽頭時，可_方面注人水泥乳毅—方面 $ °回，鑽頭後’於土壌水泥内建滿樁本體5，並將 δχ至規疋的深度為止而結束操作。 士功礎樁群2G巾’樁本體5各自的固根球根6的外炉 大致相同。因此，於竑 J外4工 錄雖+，4 —於轭工現场，前端固根球根ό的外徑的 m d準料個挖掘獅。由於將S1根球柏6 m ’因此可藉由一台施工機械 = 謀未施工成本的降低。 攸而可 產生 ::的固根球根6的外徑的施工失誤等施二::: 再者，樁本體5並不限於鋼管Concrete, PHC) piles, etc. [Embodiment 2: Front end fixed pile] Fig. 3 is a side view schematically showing the entire foundation pile group according to Embodiment 2 of the present invention. In Fig. 3, the "foundation pile group 20 is composed of a plurality of foundation piles, and is constructed as "and" and is disposed under the ground 90 to support the structure 8". The foundation piles, servants, 4c, 4d respectively have pile bodies 5a, 5b, allowable %, and rooted bulbs 6a, 6b, & 6d formed at the front end portions of the pile bodies 5a, 5b, 5c, 5d. Further, the roots of the roots 6 & 6 and 6 (6, 6 (1) are formed substantially the same in outer diameter. Further, the suffix of the symbol may be omitted for the same content for each member or each member of each member. The description of "a, b, e, d" will be described. In addition, for the sake of convenience of explanation, the foundation pile group 20 including the four foundation piles 4 is shown. However, the present invention does not limit the number of foundation piles. The shape of the root bulb 6 and the shape of the digging bit are not limited, and the method of digging the drill is not limited. The method of the digging method is not limited, and any method such as the excavation 12 201204901 method or the pre-drilling method can be used. In the excavation method, when the outer diameter of the pile main body (hereinafter referred to as the "pile diameter") is changed, the excavation can be performed on the same surface diameter in accordance with the maximum pile diameter at the time of excavation of the circumferential surface portion of the pile main body 5. Alternatively, the excavating drill bit may be modified so as to be able to excavate substantially the same diameter as the pile diameter. At this time, water or muddy water may be injected during the excavation of the circumferential surface, or the cement slurry may be injected into the poorly mixed cement slurry. Excessively around 5 When the excavation is expanded, the frictional force on the circumferential surface may be lowered. Therefore, it is preferably used after being confirmed by a load test or the like. On the other hand, in the excavation of the peripheral surface, the cement is filled in the peripheral surface to form the soil. In the case of cement, the load is smoothly transferred from the pile body 5 to the soil cement and then to the ground 9 ,, so even if the excavation is carried out, it does not become a problem. When the position where the root bulb 6 is made is made, it is mechanical. Or hydraulically open the enlarged drill bit, inject the rich cement slurry, and then excavate and stir the support layer ground to make the fixed root ball 6. In the mechanical type, rotate in the opposite direction to the digging to make the drill bit The diameter is expanded, that is, it protrudes toward the outer side in the radial direction. In addition, in the hydraulic type, the drill bit is expanded by the oil pressure. At this time, it is more preferable to use a type of drill which has been expanded by wireless or wired, vibration, or the like. The message is transmitted to the mechanism where the ground root bulb 6 has indeed been made. It is true that, and if the specified root bulb 6 is made, it is rotated in the mechanical form to fold the drill bit. The hydraulic pressure towel is used to reduce the drill bit by 13 201204901 and lift it to the ground. Finally, the pile body 5 is placed in the fixed root 6 to end the operation. ' (Pre-drilling method) Pre-drilling In the hole method, it is prepared to excavate the circumferential surface portion of the crucible body 5 according to the outer diameter of the pile body 5. The excavation can be performed in the same diameter according to the maximum pile diameter. However, for the pile body having a small pile diameter, The smaller the excavation, the better, so that the speed of the guard is increased, and the cement waste is reduced. Therefore, the construction cost can be expected to be reduced. Solid, the bulb 6 is made in the same way as the middle digger method. Ground, ready to use the machine;, oil-tight to drill the drill bit. After the fixed roots 6 are made from the drill bit. When the drill bit is lifted, the cement can be injected into the cement. 'The pile body 5 is built in the soil cement and the operation is finished with δχ to the depth of the gauge. The outer furnace of the roots 6 of the pile body 5 of the pile body 5 is substantially the same. Therefore, although the work of Yu X outside 4, +, 4 - at the yoke work site, the outer diameter of the front end of the root ball m m d is expected to dig a lion. Since the S1 root ball cypress is 6 m ', it is possible to reduce the construction cost by using one construction machine. The construction error of the outer diameter of the roots of the roots of the roots of the roots of the roots of the roots is as follows:
Cement，SC)樁」或「ρΗΓ族發馮土壌水泥（Soil 」次PHC樁」等的現成樁。此 14 201204901 樁本體5的材料的容許應力或外徑（於中空體的情況下為 外徑及壁厚）是依照實施形態1設定為任何樁本體均大致 相同，或者根據對各樁本體所要求的前端支撐力的大小來 決定。 由於樁本體5與固根球根6成為一體來發揮前端支樓 力’因此較理想的是於樁本體5的内面或外面設置突起等 來增大附著力。 (將樁本體設定為高強度的情形） 作為樁本體’使用強度較先前更高的鋼管，為了使固 根球根6的外徑相同來支撐相同的前端支撐力，則可使該 外徑小於先前的普通強度的鋼管。若外徑變小，則樁的操 作亦變得容易。 當設定為利用高強度鋼管的樁本體時，固根倍率變得 比先前的普通強度的鋼管更大，但藉由樁徑變小，樁本體 5，周面部的挖掘量減少，因此施工速度提升，注入的水 泥量及排出土量亦減少，可謀求施工成本的降低。 另外，當鋼管的外徑變小時，為了使鋼管與固根球根 6的附著力增強，而設置較大的突起等。 [產業上之可利用性] 根據本發H料，可確實地支撐所要求的總支 因此可廣泛地用作支樓各種構造物的基礎捲群。 限定較佳實施例揭露如上，然其並非用以 ““ i均㈣此技藝者，在不脫離本發明之精神 和範圍内，當可作些許之更動與潤飾，因此本發明之保^ 201204901 ’ 範圍當視後附之申請專利範圍所界定 【圖式簡單說明】 實施形態1的基礎樁群 圖1是示意性地表示本發明的 的整體的侧視圖。 圖2是示意性地表示形成所示的基礎捲群的鋼管捲的 其他例的側視圖。 圖3是示意性地表示本發明的實施形態2的基礎樁群 的整體的側視圖。 【主要元件符號說明】 卜 la、lb、lc、Id、4、4a、4b、4c、4d、30 :基礎 樁 2、 2a、2b、2c、2d :鋼管 3、 3a、3b、3c、3d、34 :螺旋翼 5、 5a、5b、5c、5d .播本體 6、 6a、6b、6c、6d :固根球根 10 :基礎樁群（實施形態l) 20 :基礎樁群（實施形態2) 31 :上樁 32 :中樁 33 :下樁 80 ·構造物 90 :地面Cement, SC) piles or ready-made piles such as "Pu ΗΓ 发 壌 壌 壌 壌 S 。 。 。 。 。 。 。 。 。 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 2012 According to the first embodiment, the pile body is substantially the same, or is determined according to the magnitude of the front end support force required for each pile body. The pile body 5 and the root bulb 6 are integrated to provide the front end branch. It is preferable to provide a protrusion or the like on the inner surface or the outer surface of the pile body 5 to increase the adhesion. (Set the pile body to a high strength) As the pile body, the steel pipe having a higher strength than before is used. When the outer diameter of the rooted bulbs 6 is the same to support the same front end supporting force, the outer diameter can be made smaller than that of the conventional ordinary strength. If the outer diameter is small, the operation of the pile becomes easy. In the pile body of the high-strength steel pipe, the solidification magnification becomes larger than that of the conventional ordinary strength steel pipe, but as the pile diameter becomes smaller, the pile body 5 and the amount of excavation of the circumferential surface are reduced, so that the construction speed is increased. The amount of cement and the amount of discharged soil are also reduced, and the construction cost can be reduced. When the outer diameter of the steel pipe is small, a large protrusion or the like is provided in order to increase the adhesion between the steel pipe and the fixed bulb. INDUSTRIAL APPLICABILITY According to the present invention, the required total branch can be reliably supported and thus can be widely used as a basic volume group of various structures of the branch building. The preferred embodiment is disclosed as above, but it is not used. In the spirit and scope of the present invention, it is possible to make some changes and refinements, and therefore the scope of the invention is defined by the scope of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS The basic pile group of the first embodiment is a side view schematically showing the whole of the present invention. Fig. 2 is a side view schematically showing another example of the steel pipe roll forming the basic volume group shown. Fig. 3 is a side view schematically showing the entire foundation pile group according to Embodiment 2 of the present invention. [Description of Main Element Symbols] la, lb, lc, Id, 4, 4a, 4b, 4c, 4d, 30: foundation pile 2 2a, 2b, 2c, 2d: steel pipes 3, 3a, 3b, 3c, 3d, 34: spiral wings 5, 5a, 5b, 5c, 5d. Seed bodies 6, 6a, 6b, 6c, 6d: root bulbs 10: Foundation pile group (Embodiment l) 20: Foundation pile group (Embodiment 2) 31: Upper pile 32: Middle pile 33: Lower pile 80 · Structure 90: Ground