1303687 五、發明說明 【發明所 本發 ，尤指一 '施工方法 【先前技 按， ，擬構築 結構物之 φ層承載於 陷而使基 ，因此， 擔該負摩 前述 -樁長度或 _基樁大多 低基樁表 播無法塗 長之方式 φ室的深度 先進行基 為瞭解實 離的方式 ，且套管 ⑴ 屬之技術領域】 明係有關一種場鑄基樁消除樁身摩擦力之施工法 種可降低樁身與孔壁土壤接觸，以消除摩擦力之 術】 一般之高樓建築、橋樑或重要設施等施工過程中 於回填地層或軟弱地層時，通常係採用基樁作為 承載基礎，由於基樁打設穿過回填地層或軟弱地 底下堅硬地層時，表層之回填層或軟弱地層因沉 樁產生向下之摩擦力，一般稱之為「負摩擦力」 基樁除承受結構物、設備之載重外，尚須額外承 擦力。 之負摩擦力於工程界的解決方式，通常以增加基 增大基樁口徑來抵擋此摩擦力，以往預鑄、預力 在擬消除摩擦力之基樁表面塗佈一層瀝青，以降 面與土壤間之接觸面的摩擦力，惟由於場鑄鑽掘 佈瀝青等隔離材料，因此均以增大樁徑或增加樁 克服，如此將增加施工成本，又；高樓建築地下 通常達10M〜20M甚至30M的深度，構築基樁前須 樁載重試驗，且試樁的作業必須於地面上進行， 體樁之承載能力，空打段部份常採以雙套鋼管隔 以消除摩擦，此種施工方法不但困難且費用高昂 亦常因放置歪斜而相互接觸，使隔離的成效不佳 1303687 五、發明說明（2) ，殊不理想。 【發明内容】 本發明之主要目的，即在提供一種場鑄基樁（圓形基 樁、矩形基樁等）消除樁身摩擦力施工法，使場鑄基樁於 施工時，得以降低樁身與孔壁土壤之接觸，以達到消除摩 擦力。 前述之施工法，係於鋼筋籠的外侧包覆一層或複數層 塑膠布或塑膠布與泡棉組合而成之隔離層，並於隔離層外 φ側裝設適當數量之設有逆止閥裝置之灌注管，使鋼筋籠置 入基樁之鑽孔後澆置混凝土，再以清水注入灌注管，以減 少塑膠布與鑽孔土壤之接觸面積，然後再由灌注管注入軟 質皂土或潤滑油脂，將摩擦力降至最低，以達到消除樁身 摩擦力之效果。 • 前述之施工方法，該設於隔離層外側之灌注管，一般 _須視樁徑大小調整實際數量，而其深度則設置在擬消除摩 擦段之不同位置，管頂則伸出地面約1. 0 Μ以供灌注清水或 皂土漿。 f【實施方式】 請同時參閱第一、二圖，本發明主要係於鋼筋籠1 1 的外側包覆一層塑膠布或塑膠布與泡棉組合而成之隔離層 1 2，並於隔離層1 2外側裝設適當數量之灌注管1 3 ， 該等灌注管1 3的數量及長度視樁徑大小、消除摩擦力之1303687 V. Description of the invention [Invention of the invention, especially a construction method [previously, the φ layer of the structure to be constructed is carried by the foundation, so Most of the low-pile piles can not be painted long. The depth of the φ chamber is firstly based on the way of understanding the actual separation, and the casing (1) belongs to the technical field. The construction method of the field-based pile foundation to eliminate the friction of the pile body It can reduce the contact between the pile body and the soil of the hole wall to eliminate the friction. Generally, in the construction process of high-rise buildings, bridges or important facilities, in the backfilling or weak stratum, the foundation pile is usually used as the bearing foundation. When the foundation pile is laid through the backfilled stratum or the hard subterranean hard stratum, the backfill layer or the weak stratum of the surface layer generates downward friction due to the sinking pile, which is generally called “negative friction force”. The pile is not subject to the structure and equipment. In addition to the load, additional friction is required. The negative friction force is solved in the engineering field. Generally, the friction of the foundation pile is increased by increasing the base. In the past, the pre-stress and the pre-force applied a layer of asphalt on the surface of the pile to eliminate the friction to reduce the surface and the soil. The friction between the contact surfaces is only due to the increase of the pile diameter or the increase of the pile due to the isolation of the asphalt and other materials. This will increase the construction cost, and the underground of the high-rise building usually reaches 10M~20M. At the depth of 30M, the load test of the piles must be carried out before the piles are piled up, and the operation of the test piles must be carried out on the ground. The bearing capacity of the piles is often separated by double sets of steel pipes to eliminate friction. This construction method is not only Difficult and costly, they often come into contact with each other because of the skewness, which makes the isolation not effective. 1303687 V. Invention description (2) is not ideal. SUMMARY OF THE INVENTION The main object of the present invention is to provide a field casting pile (round pile, rectangular pile, etc.) to eliminate the frictional construction method of the pile body, so that the field cast pile can reduce the pile body during construction. Contact with the soil of the hole wall to achieve friction elimination. The foregoing construction method is to coat the outer side of the steel cage with a layer or a plurality of layers of plastic cloth or a combination of plastic cloth and foam, and install an appropriate number of check valve devices on the outer side of the isolation layer. The perfusion tube is arranged such that the steel cage is placed in the bore of the pile and the concrete is poured, and then the water is injected into the perfusion tube to reduce the contact area between the plastic cloth and the bored soil, and then the soft bentonite or lubricating grease is injected from the perfusion tube. The friction is minimized to achieve the effect of eliminating the friction of the pile body. • For the above-mentioned construction method, the perfusion pipe located outside the insulation layer is generally adjusted according to the size of the pile diameter, and the depth is set at different positions of the friction-removing section, and the top of the pipe protrudes from the ground. 0 Μ for perfusion of clean water or bentonite pulp. f[Embodiment] Please refer to the first and second figures at the same time. The invention is mainly applied to the outer side of the steel cage 1 1 with a layer of plastic cloth or a combination of plastic cloth and foam, and is provided in the isolation layer 1 . 2 The outer side is provided with an appropriate number of perfusion tubes 1 3 , and the number and length of the perfusion tubes 13 are based on the diameter of the pile and the friction is eliminated.
1303687 五、發明說明（3) 長度而定，灌注管1 3可採直條式，其底部設有出水孔 1 4並於出水孔1 4設有逆止閥裝置，基樁施工時，使混 凝土漿液或土壤顆粒不會進入管内造成阻塞。 ' 灌注清水時，則清水可由管内流出，將基樁隔離層外 、圍孔壁土壤清除，另，亦可於直條式灌注管1 3之底端連 接一環狀灌注管1 5，該灌注管係環繞於隔離層外侧，環 狀灌注管均佈有預留之出水孔1 5 1並於出水孔1 5 1設 有逆止閥，灌注清水時，可使水由基樁四周均勻流出，達 到消除摩擦力之目的。 φ 請參閱第三圖，本發明施工時，係將組裝後之鋼筋籠 1 1 、隔離層1 2及灌注管1 3與環狀灌注管1 5放入鑽 掘至預定深度之基樁鑽孔3 1内，並使其中之灌注管1 3 伸出地面約1. 0 Μ 〇 請同時參閱第三、四、五圖，本發明於組裝後之鋼筋 籠11、隔離層12及灌注管13、15吊放入鑽孔31 .後，係依以下之步驟施工： 1、澆置混凝土，完成基樁之施工，此時，隔離層 1 2被撐張與孔壁1 6之土壤接觸，此時樁體混凝土 1 7 與孔壁1 6為隔離層隔離，已減少樁體混凝土與土壤之摩 4擦力（如圖三）。 2 、再由灌注管1 3 、1 5注入清水4 1 ，使隔離層 1 2與孔壁1 6 土壤減少接觸面（如圖四）。 3、再於灌注管1 3注入軟質皂土液或潤滑油脂5 1 (如圖五），以降低摩擦力，進而達到消除樁身摩擦力之目1303687 V. Description of invention (3) Depending on the length, the filling pipe 13 can be straight-type, with a water outlet hole 14 at the bottom and a check valve device at the water outlet hole 14. When the pile is constructed, the concrete is made. Slurry or soil particles do not enter the tube causing blockage. ' When pouring fresh water, the clean water can flow out from the pipe, and the soil outside the pile isolation layer and the surrounding wall can be removed. Alternatively, an annular perfusion pipe 15 can be connected to the bottom end of the straight-type perfusion pipe 13 . The pipe system surrounds the outer side of the isolation layer, and the annular perfusion pipe is uniformly provided with a reserved water outlet hole 1 51 and a check valve is arranged at the water outlet hole 151. When the water is poured, the water can be uniformly discharged from the periphery of the pile. Achieve the purpose of eliminating friction. φ Please refer to the third figure. During the construction of the present invention, the assembled steel cage 1 1 , the separation layer 12 and the filling pipe 13 and the annular filling pipe 15 are placed in the pile drilling to a predetermined depth. 3, and the perfusion tube 1 3 is extended from the ground by about 1. 0 Μ 〇 Please also refer to the third, fourth and fifth figures, the assembled steel cage 11, the insulation layer 12 and the perfusion tube 13, 15 Hanging into the borehole 31. After the construction, the following steps are followed: 1. Pour the concrete and complete the construction of the foundation pile. At this time, the separation layer 12 is supported by the soil of the hole wall 16 at this time. The pile concrete 17 and the hole wall 16 are isolated by the isolation layer, which has reduced the friction between the concrete of the pile and the soil (Fig. 3). 2. Inject the clean water 4 1 from the filling pipe 13 and 15 to reduce the contact surface between the insulating layer 12 and the hole wall 16 (Fig. 4). 3. Inject the soft bentonite liquid or lubricating grease 5 1 (Fig. 5) into the filling tube 13 to reduce the friction and then eliminate the friction of the pile body.
第7頁 1303687 五、發明說明（4) 的。 由於基樁之摩擦力係為樁身混凝土與鑽孔土壤接觸， 當承受上部載重時，則樁體與土壤間即產生一向上之阻抗 力，此即為摩擦力，因而，當樁身與土壤接觸愈緊密時， 則摩擦力可發揮得愈好，反之則愈差，因此，本發明於樁 身與土壤間以光滑之隔離層阻隔，即構成減少摩擦力之作 用，然後再利用灌注管灌注清水，以減少隔離層與土壤之 接觸並加以灌注皂土液及潤滑油脂，可使摩擦力得以消除 〇 綜上所述，本發明之包覆有隔離層及灌注管之鋼筋籠 ，配合上述之施工步驟，使場鑄基樁得以消除樁身摩擦力 ，為一實用之設計，誠屬一倶新穎性之創作，並依法提出 專利申請，祈 鈞局予以審查，早日賜準專利，至感德便Page 7 1303687 V. Description of invention (4). Since the friction of the pile is the contact between the concrete of the pile and the bored soil, when the upper load is received, an upward resistance force is generated between the pile and the soil, which is the friction force. Therefore, when the pile body and the soil The closer the contact is, the better the friction can be exerted, and vice versa. Therefore, the present invention is blocked by a smooth separation layer between the pile body and the soil, thereby forming a friction reducing effect, and then infiltrating with the perfusion tube. Clear water, in order to reduce the contact between the separation layer and the soil and to infuse the bentonite liquid and the lubricating grease, the friction can be eliminated. In the above, the reinforcing cage of the present invention coated with the separating layer and the pouring tube cooperates with the above The construction steps enable the field-cast pile to eliminate the friction of the pile body. It is a practical design. It is a novelty creation, and the patent application is filed according to law. The prayer bureau will review it and grant the patent as soon as possible. Will
第8頁 •1303687 圖式簡單說明 【圖式簡單說明】 第一、二圖係本發明之結構圖。 第三圖係本發明吊放於鑽孔實施例圖。 第四圖係本發明灌注清水實施例圖。 第五圖係本發明灌注皂土液、潤滑油脂實施例圖 主要元件符號說明 Φ 11 1 -鋼筋籠 1 2 ——隔離層 3 ---直條型灌注管 4 ——出水孔 5 ---環狀灌注管 5 1——出水孔 6 7 1 1 1 4 5 孔壁 混凝土 --基播之鑽孔 --清水 --息土裝或潤滑油脂材料Page 8 • 1303687 Schematic description of the drawings [Simplified description of the drawings] The first and second drawings are the structural diagrams of the present invention. The third figure is a diagram of the embodiment of the present invention suspended in a borehole. The fourth figure is a diagram of an embodiment of the perfusion clean water of the present invention. The fifth figure is the embodiment of the infusion of bentonite liquid and lubricating grease of the present invention. The main components and symbols are illustrated. Φ 11 1 - Reinforcing cage 1 2 - Separating layer 3 - Straight type pouring tube 4 - Outlet hole 5 --- Annular filling pipe 5 1——water outlet hole 6 7 1 1 1 4 5 hole wall concrete--drilling hole for groundcasting--clean water--earth soil or lubricating grease material
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