JP5612505B2 - Heat collection tube construction method - Google Patents

Heat collection tube construction method Download PDF

Info

Publication number
JP5612505B2
JP5612505B2 JP2011037026A JP2011037026A JP5612505B2 JP 5612505 B2 JP5612505 B2 JP 5612505B2 JP 2011037026 A JP2011037026 A JP 2011037026A JP 2011037026 A JP2011037026 A JP 2011037026A JP 5612505 B2 JP5612505 B2 JP 5612505B2
Authority
JP
Japan
Prior art keywords
pile
heat
pipe
heat collection
collection tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2011037026A
Other languages
Japanese (ja)
Other versions
JP2012172937A (en
Inventor
孝至 大坪
孝至 大坪
正美 木瀬
正美 木瀬
悟 中西
悟 中西
勉 井川
勉 井川
新井　清
清 新井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chiyoda Corp
Nippon Concrete Industries Co Ltd
Original Assignee
Chiyoda Corp
Nippon Concrete Industries Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chiyoda Corp, Nippon Concrete Industries Co Ltd filed Critical Chiyoda Corp
Priority to JP2011037026A priority Critical patent/JP5612505B2/en
Publication of JP2012172937A publication Critical patent/JP2012172937A/en
Application granted granted Critical
Publication of JP5612505B2 publication Critical patent/JP5612505B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/10—Geothermal energy

Description

本発明は、地中熱利用システムに用いる採熱管を杭中空部内に挿入する採熱管施工方法に関する。   The present invention relates to a heat collection pipe construction method for inserting a heat collection pipe used in a geothermal heat utilization system into a pile hollow portion.

地中に基礎杭の鋼管杭を設置し、その杭設置後に、その設置施工で杭内部に生じた空洞に樹脂製のＵ字状チューブからなる対地中熱交換器を杭上端部から挿入して配置し、その後、杭内の空洞にセメントミルクや土砂などの充填材を充填する対地中熱交換設備の製造方法が知られている（例えば、特許文献１参照）。   After installing the steel pipe pile of the foundation pile in the ground, insert the ground heat exchanger made of resin U-shaped tube into the cavity generated inside the pile by the installation work from the top end of the pile There is known a method for manufacturing an underground heat exchange facility that is arranged and then filled with a filler such as cement milk or earth and sand into a cavity in a pile (see, for example, Patent Document 1).

また、地中に基礎杭のコンクリート円筒体を埋設し、このコンクリート円筒体内に２重管を挿入し、この２重管とコンクリート円筒体との間にベントナイトセメントを充填し、２重管の外管内で下降させた熱媒体を内管内で上昇させ、外部へ取り出すようにした地中熱利用システムが知られている（例えば、特許文献２参照）。   In addition, a concrete cylinder of the foundation pile is buried in the ground, a double pipe is inserted into the concrete cylinder, bentonite cement is filled between the double pipe and the concrete cylinder, and the outside of the double pipe is inserted. A ground heat utilization system is known in which a heat medium lowered in a pipe is raised in the inner pipe and taken out to the outside (see, for example, Patent Document 2).

特開２００３−１４８０７９号公報JP 2003-148079 A 特許第３１４３６１９号公報Japanese Patent No. 3143619

一方、地中に既製コンクリート杭を埋設する際に、プレボーリング工法の場合は、既製コンクリート杭挿入のため掘削された掘削孔の土壁面と杭挿入後の杭外周面との間の隙間を充填する目的等でソイルセメントを掘削孔内に流入させることが行なわれている。   On the other hand, when burying ready-made concrete piles in the ground, in the case of the pre-boring method, the gap between the soil wall surface of the excavated hole for inserting the ready-made concrete pile and the outer peripheral surface of the pile after the pile insertion is filled. For this purpose, soil cement is introduced into the excavation hole.

このようなソイルセメントは、既製コンクリート杭の挿入とともに杭先端の開口部分から杭中空部内に押し上がり、数日経過後に固化に近い状態となり、このソイルセメント中に採熱管を杭先端部まで施工せざるを得ない場合もある。   Such soil cement is pushed up into the pile hollow part from the opening at the tip of the pile with the insertion of the ready-made concrete pile, and it becomes almost solidified after a few days, and the heat collecting pipe is installed in this soil cement to the tip of the pile. In some cases, it is unavoidable.

また、中掘工法の場合は、杭中空部内から掘り出す土を減らすために、通常、杭中空部内に掘削土の一部を残すが、この杭中空部内に残される残置土は土塊混じりの泥土であり、特に杭先端部に近いほど土塊が多くなる。   In addition, in the case of the medium excavation method, in order to reduce the soil excavated from the inside of the pile hollow part, usually a part of the excavated soil is left in the pile hollow part, but the remaining soil left in this pile hollow part is mud mixed with a lump. Yes, the closer to the tip of the pile, the more clumps.

いずれの場合も、採熱管を杭先端部へ確実に到達させるために、杭中空部内のソイルセメントや、土塊混じりの残置土を、別途用意したオーガにより掘削するが、オーガを新たに準備して用いるので、時間と費用がかかる問題がある。   In either case, in order to ensure that the heat collection tube reaches the pile tip, the soil cement in the hollow part of the pile and the remaining soil mixed with the clumps are excavated with a separately prepared auger. Because it uses, there is a problem that it takes time and money.

本発明は、このような点に鑑みなされたもので、杭中空部内に採熱管を所定深度まで確実かつ容易に到達させることができる採熱管施工方法を提供することを目的とする。   This invention is made | formed in view of such a point, and it aims at providing the heat collecting pipe construction method which can make a heat collecting pipe reach | attain to a predetermined depth reliably and easily in a pile hollow part.

請求項１に記載された発明は、中空に形成された杭を地中に埋設する際に上記杭の中空部内に流入した杭内熱伝導材中に、杭埋設後速やかに、通水管をその管先端より水を噴射しつつ挿入し、所定深度まで上記通水管を挿入した後、その通水管を引き抜いて、上記杭内熱伝導材中に採熱管挿入部を形成し、上記通水管を引き抜いた後速やかに、上記採熱管挿入部内に、地中熱と熱交換可能な熱媒体が内部に供給される採熱管を挿入する採熱管施工方法である。   In the invention described in claim 1, when the pile formed in the hollow is buried in the ground, the water pipe is immediately inserted into the heat conductive material in the pile which has flowed into the hollow portion of the pile after the pile is buried. Insert the water pipe from the pipe tip while spraying it, insert the water pipe to a predetermined depth, pull out the water pipe, form a heat collection pipe insertion part in the heat conductive material in the pile, and pull out the water pipe This is a heat collection tube construction method in which a heat collection tube into which a heat medium that can exchange heat with underground heat is supplied into the heat collection tube insertion portion immediately after the heat collection tube is inserted.

請求項２に記載された発明は、請求項１記載の採熱管施工方法における上記採熱管が、Ｕ字形に折返した先端部を有し、上記採熱管の先端部に浮き防止の重錘を取り付け、上記重錘の重みにより上記採熱管挿入部内に上記採熱管を挿入する採熱管施工方法である。   According to a second aspect of the present invention, the heat collecting tube in the heat collecting tube construction method according to the first aspect has a tip portion folded back in a U shape, and a weight for preventing floating is attached to the tip portion of the heat collecting tube. The heat collection tube construction method is for inserting the heat collection tube into the heat collection tube insertion portion by the weight of the weight.

請求項３に記載された発明は、請求項１または２記載の採熱管施工方法において、上記杭内熱伝導材で満たされた上記杭の上部に杭中心軸に沿ってガイド管を差し込み、上記ガイド管を通して上記通水管を挿入する採熱管施工方法である。   The invention described in claim 3 is the heat pipe construction method according to claim 1 or 2, wherein a guide tube is inserted along the pile central axis into the upper part of the pile filled with the heat conductive material in the pile, This is a heat collection pipe construction method in which the water pipe is inserted through a guide pipe.

請求項１記載の発明によれば、中空に形成された杭を地中に埋設する際に杭中空部内に流入した杭内熱伝導材中に、杭埋設後速やかに、通水管をその管先端より水を噴射しつつ所定深度まで挿入するので、上記通水管より噴射する水により、上記杭内熱伝導材中の充填物の粘性を薄めるとともに上記杭内熱伝導材中の土塊を粉砕または移動させるようにして、上記通水管を引き抜いたときに採熱管を挿入しやすい状態となった採熱管挿入部を上記杭内熱伝導材中に容易に形成でき、さらに、この採熱管挿入部を形成した後速やかに、この採熱管挿入部内に、地中熱と熱交換可能な熱媒体が内部に供給される採熱管を挿入することで、この採熱管を容易に挿入でき、オーガを用いることなく、杭中空部内の杭内熱伝導材中に採熱管を所定深度まで確実かつ容易に到達させることができ、時間や費用がかからない。   According to the first aspect of the present invention, when the pile formed in the hollow is buried in the ground, the water pipe is immediately inserted into the heat conducting material in the pile that has flowed into the hollow portion of the pile after the pile is buried. Since water is injected to a predetermined depth while spraying water, the water sprayed from the water pipe reduces the viscosity of the filler in the pile heat conduction material and pulverizes or moves the clot in the pile heat conduction material In this way, it is possible to easily form the heat collection tube insertion portion that is in a state in which the heat collection tube is easily inserted when the water flow tube is pulled out in the heat conductive material in the pile, and further, this heat collection tube insertion portion is formed Immediately after that, by inserting a heat collecting tube into which a heat medium that can exchange heat with the underground heat is inserted, the heat collecting tube can be easily inserted without using an auger. The heat collection pipe is placed to a predetermined depth in the heat conduction material in the pile in the hollow part of the pile. Reliably and easily be made to reach, less time consuming and cost.

請求項２記載の発明によれば、採熱管のＵ字形に折返した先端部に浮き防止の重錘を取り付け、この重錘の重みにより杭内熱伝導材中の採熱管挿入部内に採熱管を挿入するので、杭内に採熱管を所定深度までいっそう確実かつ容易に到達させることができる。   According to the second aspect of the present invention, a weight for preventing floating is attached to the tip portion of the heat collecting tube that is folded back into a U shape, and the weight of the weight is attached to the heat collecting tube in the heat collecting tube insertion portion in the heat conductive material in the pile. Since it inserts, a heat-collecting pipe | tube can be reached more reliably and easily to a predetermined depth in a pile.

請求項３記載の発明によれば、杭内熱伝導材で満たされた杭の上部に杭中心軸に沿って差し込んだガイド管を通して通水管を挿入するので、ガイド管の案内により杭の中心軸上で通水管を確実かつ容易に下降させることができる。   According to invention of Claim 3, since a water flow pipe is inserted through the guide pipe inserted along the pile central axis in the upper part of the pile filled with the heat conductive material in the pile, the central axis of the pile is guided by the guide pipe The water pipe can be lowered reliably and easily above.

本発明に係る採熱管施工方法の一実施の形態を示す断面図である。It is sectional drawing which shows one Embodiment of the heat collecting pipe construction method which concerns on this invention. 同上施工方法の工程を示す断面図であり、（ａ）は採熱管の挿入開始時、（ｂ）はフーチング施工時の図である。It is sectional drawing which shows the process of the construction method same as the above, (a) is a figure at the time of a footing construction at the time of the insertion start of a heat sampling pipe | tube, and (b).

以下、本発明の採熱管施工方法を、図１及び図２に示された一実施の形態に基いて詳細に説明する。   Hereinafter, the heat collecting pipe construction method of the present invention will be described in detail based on one embodiment shown in FIGS. 1 and 2.

図１に示されるように、プレボーリング工法または中掘工法によって、中空に形成された杭としての既製コンクリート杭11を、フーチングなどの基礎杭として地中に埋設する際に、上記杭11の中空部12内に、ソイルセメント（プレボーリング工法の場合）または泥土状態の残置土（中掘工法の場合）が、粘性の高い充填物13aとして流入し、これらの充填物13a中には土塊13bが混入している。これらの充填物13aおよび土塊13bは、杭内熱伝導材13を構成する。既製コンクリート杭11も熱伝導材として機能する。   As shown in FIG. 1, when a ready-made concrete pile 11 formed as a hollow pile is buried in the ground as a foundation pile such as a footing by a pre-boring method or an underground excavation method, The soil cement (in the case of the pre-boring method) or the remaining soil in the mud state (in the case of the medium excavation method) flows into the part 12 as the highly viscous filler 13a, and the soil mass 13b is contained in these fillers 13a. It is mixed. These fillers 13a and soil blocks 13b constitute the heat conductive material 13 in the pile. The ready-made concrete pile 11 also functions as a heat conductive material.

上記杭内熱伝導材13の固化が進行して硬化する前に、望ましくは既製コンクリート杭11を施工した後速やかに、上記杭内熱伝導材13で満たされた上記既製コンクリート杭11の上部に杭中心軸に沿ってガイド管14を差し込む。このガイド管14は、少なくとも地表面15から杭頭までの距離より長く、かつ後述する通水管の外径より大きな内径を有する。   Before the solidification of the heat conductive material 13 in the pile progresses and hardens, preferably after the construction of the ready-made concrete pile 11, immediately on the upper part of the ready-made concrete pile 11 filled with the heat conductive material 13 in the pile. The guide tube 14 is inserted along the pile center axis. The guide pipe 14 has an inner diameter that is at least longer than the distance from the ground surface 15 to the pile head and that is larger than the outer diameter of the water pipe described later.

そして、上記ガイド管14の施工後速やかに、上記ガイド管14を通して杭内熱伝導材13中に直管状の通水管としての洗浄用配管16を挿入する。この洗浄用配管16としては、例えば、軟質水道管４０φなどを用いる。   Then, immediately after the construction of the guide pipe 14, a cleaning pipe 16 as a straight tubular water pipe is inserted into the heat conductive material 13 in the pile through the guide pipe 14. As the cleaning pipe 16, for example, a soft water pipe 40φ is used.

上記洗浄用配管16の上端には高圧ホース17の一端が接続され、この高圧ホース17の他端は、ホースリール18を経て多段渦巻きポンプ19の吐出口に接続され、この多段渦巻きポンプ19の吸込口には吸込ホース21が接続され、この吸込ホース21の吸込口22は、水槽23内の水24中に挿入されている。   One end of the high-pressure hose 17 is connected to the upper end of the cleaning pipe 16, and the other end of the high-pressure hose 17 is connected to the discharge port of the multi-stage centrifugal pump 19 via the hose reel 18, and the suction of the multi-stage centrifugal pump 19 A suction hose 21 is connected to the mouth, and a suction port 22 of the suction hose 21 is inserted into the water 24 in the water tank 23.

上記洗浄用配管16は、上記多段渦巻きポンプ19により加圧供給された上記水槽23内の水24を管先端より噴射しつつ、杭内熱伝導材13中に挿入される。   The cleaning pipe 16 is inserted into the in-pile heat conductive material 13 while jetting water 24 in the water tank 23 pressurized and supplied by the multistage centrifugal pump 19 from the pipe tip.

その際、洗浄用配管16は、管先端より水24aを噴射することにより、充填物（ソイルセメントや泥土）13aの粘性を薄めるとともに、噴射する水24aの水圧により、土塊13bを粉砕または移動させながら、洗浄用配管16の自重、人手による押込み力などにより杭頭から例えば２０ｍ程度の所定深度まで下降させる。   At that time, the cleaning pipe 16 jets water 24a from the pipe tip to reduce the viscosity of the filler (soil cement or mud) 13a, and pulverizes or moves the clot 13b by the water pressure of the jetted water 24a. However, it is lowered from the pile head to a predetermined depth of, for example, about 20 m by the weight of the cleaning pipe 16 or the pushing force by hand.

所定深度まで上記洗浄用配管16を到達させた後、その洗浄用配管16を引き抜くと、上記杭内熱伝導材13中に、下記採熱管を挿入しやすい状態にした採熱管挿入部26が形成される。   After reaching the cleaning pipe 16 to a predetermined depth and then pulling out the cleaning pipe 16, a heat collection pipe insertion portion 26 is formed in the above-mentioned heat conduction material 13 in the pile so that the following heat collection pipe can be easily inserted. Is done.

すなわち、洗浄用配管16を引き抜くと、一時的にできた空間は直ぐに流動性の高い未硬化の充填物（ソイルセメントや泥土）で埋まってしまうが、この洗浄用配管16の引抜き直後の杭内熱伝導材13中にあって流動性の高い未硬化の杭内熱伝導材で埋まった採熱管挿入部26は、下記の採熱管27を挿入しやすい状態となっている。   In other words, when the cleaning pipe 16 is pulled out, the temporary space is immediately filled with highly fluid uncured filler (soil cement or mud). The heat collection pipe insertion portion 26 that is in the heat conduction material 13 and is filled with the uncured pile heat conduction material having high fluidity is in a state in which the following heat collection pipe 27 can be easily inserted.

そこで、図２に示されるように、上記洗浄用配管16を引き抜いた後速やかに上記採熱管挿入部26内にポリエチレン製の採熱管27を挿入する。この採熱管27の内部には、地中熱と熱交換可能な不凍液などの熱媒体が供給されることになる。   Therefore, as shown in FIG. 2, a polyethylene heat collection tube 27 is inserted into the heat collection tube insertion portion 26 immediately after the cleaning pipe 16 is pulled out. Inside the heat collection tube 27, a heat medium such as an antifreeze that can exchange heat with the underground heat is supplied.

上記採熱管27の挿入の際には、図２（ａ）に示されるように、上記採熱管27の中間部をＵ字形に折返して形成した先端部から挿入し、この採熱管27の先端部に浮き防止の重錘28を取り付け、上記採熱管挿入部26内に水が残っていても、上記重錘28の重みにより上記採熱管挿入部26内に上記採熱管27を沈めるようにして挿入する。   When the heat collecting tube 27 is inserted, as shown in FIG. 2 (a), the intermediate portion of the heat collecting tube 27 is inserted from a tip portion formed by folding it in a U shape, and the tip portion of the heat collecting tube 27 is inserted. A weight 28 for preventing floating is attached to the heat collection tube insertion portion 26, so that even if water remains in the heat collection tube insertion portion 26, the weight 28 is inserted so that the heat collection tube 27 is submerged in the heat collection tube insertion portion 26. To do.

このように、杭埋設後、杭内熱伝導材13が硬化する前に、速やかに、洗浄用配管16の管先端から水24aを噴射させながら洗浄用配管16を所定深度まで挿入することにより、充填物13aの粘性を薄めるとともに、土塊13bを粉砕または移動させるようにして、採熱管27の挿入を容易にする採熱管挿入部26内を容易に形成でき、さらに、この採熱管挿入部26の形成後に速やかに、採熱管挿入部26内に採熱管27を挿入する。   In this way, after burying the pile, before the heat conductive material 13 in the pile is cured, immediately by inserting the cleaning pipe 16 to a predetermined depth while spraying water 24a from the pipe tip of the cleaning pipe 16, While reducing the viscosity of the filler 13a and crushing or moving the clot 13b, the inside of the heat collection tube insertion portion 26 that facilitates the insertion of the heat collection tube 27 can be easily formed. Immediately after the formation, the heat collection tube 27 is inserted into the heat collection tube insertion portion 26.

図２（ｂ）に示されるように、上記既製コンクリート杭11を基礎杭としてフーチングを施工するときは、地表面15を既製コンクリート杭11の杭頭まで掘り下げて、フーチング用配筋31を施工した後に、採熱管27の上部を保護用鉄管32により保護しつつフーチング用配筋31の側方外部に引き出す。   As shown in FIG. 2 (b), when constructing a footing using the ready-made concrete pile 11 as a foundation pile, the ground surface 15 was dug down to the pile head of the ready-made concrete pile 11, and the reinforcing bar 31 for footing was constructed. Later, the upper part of the heat collecting pipe 27 is protected by the protective iron pipe 32 and pulled out to the outside of the side of the reinforcing bar 31 for footing.

そして、上記採熱管27内には熱媒体としての不凍液を充填して、この不凍液をヒートポンプ（図示せず）により循環させることによって、年間を通してほぼ一定の地中熱を利用して暖房および冷房を行なうようにする。   The heat collecting pipe 27 is filled with an antifreeze as a heat medium, and this antifreeze is circulated by a heat pump (not shown), so that heating and cooling are performed using almost constant geothermal heat throughout the year. Do it.

すなわち、暖房時は、年間を通じてほぼ一定の地中温度を保つ大地が有する地中熱を、既製コンクリート杭11、杭内熱伝導材13を通して採熱管27内の熱媒体に吸収させ、また、冷房時は、採熱管27内の熱媒体が有する熱を杭内熱伝導材13および既製コンクリート杭11を通して大地に放熱させる。   That is, during heating, the ground heat of the ground that maintains a substantially constant underground temperature throughout the year is absorbed by the heat medium in the heat collection pipe 27 through the ready-made concrete pile 11 and the heat conduction material 13 in the pile, and is also cooled. At that time, the heat of the heat medium in the heat collection pipe 27 is radiated to the ground through the heat conduction material 13 in the pile and the ready-made concrete pile 11.

このような地中熱を利用した冷暖房方式は、大気中へ放熱しないことによるヒートアイランド現象の抑制に寄与できる。   Such a cooling and heating system using geothermal heat can contribute to the suppression of the heat island phenomenon by not radiating heat to the atmosphere.

次に、上記実施の形態の効果を説明する。   Next, effects of the above embodiment will be described.

中空に形成された既製コンクリート杭11を地中に埋設する際に杭11の中空部12内に流入した杭内熱伝導材13中に、杭埋設後速やかに、洗浄用配管16を、その管先端より水24aを噴射しつつ所定深度まで挿入するので、上記洗浄用配管16より噴射する水により、上記杭内熱伝導材13中の充填物13aの粘性を薄めるとともに上記杭内熱伝導材13中の土塊13bを粉砕または移動させるようにして、上記洗浄用配管16を引き抜いたときに採熱管27を挿入しやすい状態となった採熱管挿入部26を杭内熱伝導材13中に容易に形成でき、さらに、この採熱管挿入部26を形成した後速やかに、この採熱管挿入部26内に、地中熱と熱交換可能な熱媒体としての不凍液が内部に供給される採熱管27を挿入することで、この採熱管27を容易に挿入でき、オーガを用いることなく、既製コンクリート杭11内の杭内熱伝導材13中に採熱管27を所定深度まで確実かつ容易に到達させることができ、時間や費用がかからない。   When the ready-made concrete pile 11 formed in the hollow is buried in the ground, the cleaning pipe 16 is immediately inserted into the heat conduction material 13 in the pile that has flowed into the hollow portion 12 of the pile 11 after the pile is buried. Since the water 24a is inserted from the tip to a predetermined depth while being injected, the viscosity of the filler 13a in the in-pile heat conductive material 13 is reduced by the water injected from the cleaning pipe 16, and the in-pile heat conductive material 13 It is easy to insert the heat collection pipe insertion part 26 into the heat conduction material 13 in the pile, which is in a state in which the heat collection pipe 27 can be easily inserted when the cleaning pipe 16 is pulled out by crushing or moving the inner lump 13b. Further, immediately after the heat collection tube insertion portion 26 is formed, a heat collection tube 27 into which an antifreeze liquid as a heat medium that can exchange heat with the underground heat is supplied into the heat collection tube insertion portion 26. By inserting, this heat collection tube 27 can be inserted easily, without using an auger, ready-made The pile in during the heat conduction member 13 in Nkurito pile 11 a Tonetsu tube 27 to a predetermined depth can be reliably and easily reached, less time consuming and cost.

採熱管27のＵ字形に折返した先端部に浮き防止の重錘28を取り付け、この重錘28の重みにより杭内熱伝導材13中の採熱管挿入部26内に採熱管27を挿入するので、既製コンクリート杭11内の杭内熱伝導材13中に採熱管27を所定深度までいっそう確実かつ容易に到達させることができる。   A weight 28 for preventing floating is attached to the tip of the heat collecting tube 27 that is folded back into a U shape, and the heat collecting tube 27 is inserted into the heat collecting tube insertion portion 26 in the heat conductive material 13 in the pile by the weight of the weight 28. In addition, the heat collection tube 27 can be more reliably and easily reached to the predetermined depth in the heat conduction material 13 in the pile in the ready-made concrete pile 11.

杭内熱伝導材13で満たされた既製コンクリート杭11の上部に杭中心軸に沿って差し込んだガイド管14を通して洗浄用配管16を挿入するので、ガイド管14の案内により既製コンクリート杭11の中心軸上で洗浄用配管16を確実かつ容易に下降させることができる。   Since the cleaning pipe 16 is inserted through the guide pipe 14 inserted along the pile central axis into the upper part of the ready-made concrete pile 11 filled with the heat conductive material 13 in the pile, the center of the ready-made concrete pile 11 is guided by the guide pipe 14. It is possible to reliably and easily lower the cleaning pipe 16 on the shaft.

以上のように、採熱管27の挿入に洗浄用配管16を利用することにより、施工が確実かつ容易になり、その結果、工程も簡素化され、オーガなどの建機稼働の減少などを図れることから、工期短縮および工事費削減などの効果が得られる。   As described above, the use of the cleaning pipe 16 for the insertion of the heat collection pipe 27 makes the construction reliable and easy, and as a result, the process is simplified and the operation of construction equipment such as an auger can be reduced. Therefore, effects such as shortening the construction period and reducing construction costs can be obtained.

次に、図に示されない他の実施の形態を説明する。   Next, other embodiments not shown in the drawings will be described.

既製コンクリート杭11は、他の材質の杭にしても良く、例えば鋼管杭に本発明の採熱管施工方法を適用しても良い。   The ready-made concrete pile 11 may be a pile made of another material. For example, the heat collecting pipe construction method of the present invention may be applied to a steel pipe pile.

採熱管挿入部26は、複数穿設して、それぞれの採熱管挿入部26に採熱管27を設置しても良い。   A plurality of heat collection tube insertion portions 26 may be formed, and heat collection tubes 27 may be installed in the respective heat collection tube insertion portions 26.

ポリエチレン製の採熱管27は、他の材質の管にしても良く、例えば、より硬質のプラスチック製の管や、金属製の管などを用いても本発明の採熱管施工方法を適用できる。   The heat collecting tube 27 made of polyethylene may be a tube made of other materials. For example, the heat collecting tube construction method of the present invention can be applied even if a harder plastic tube or a metal tube is used.

また、採熱管27の引き出し方法は、図２（ｂ）に示した形態に限られず、例えば、保護用鉄管32を用いず直接引き出しても良いし、フーチングの上方から引き出すようにしても良い。   Further, the method of pulling out the heat collecting tube 27 is not limited to the form shown in FIG. 2B. For example, the heat collecting tube 27 may be pulled out directly without using the protective iron tube 32 or may be pulled out from above the footing.

本発明は、地中熱利用システムに必要な採熱管27を地中に挿入施工する際に利用可能である。   The present invention can be used when the heat collecting tube 27 necessary for the underground heat utilization system is inserted into the ground.

11 杭としての既製コンクリート杭
12 中空部
13 杭内熱伝導材
14 ガイド管
16 通水管としての洗浄用配管
24a 噴射する水
26 採熱管挿入部
27 採熱管
28 重錘 11 Ready-made concrete piles as piles
12 Hollow part
13 Thermal conductivity material in pile
14 Guide tube
16 Cleaning pipe as water pipe
24a Water spray
26 Heat collection tube insert
27 Heat collection tube
28 weight

Claims (3)

中空に形成された杭を地中に埋設する際に上記杭の中空部内に流入した杭内熱伝導材中に、杭埋設後速やかに、通水管をその管先端より水を噴射しつつ挿入し、
所定深度まで上記通水管を挿入した後、その通水管を引き抜いて、上記杭内熱伝導材中に採熱管挿入部を形成し、
上記通水管を引き抜いた後速やかに、上記採熱管挿入部内に、地中熱と熱交換可能な熱媒体が内部に供給される採熱管を挿入する
ことを特徴とする採熱管施工方法。 When embedding a hollow pile in the ground, insert the water pipe into the heat conduction material in the pile that has flowed into the hollow portion of the pile immediately after burying the pile while jetting water from the tip of the pile. ,
After inserting the water pipe to a predetermined depth, pull out the water pipe and form a heat collection pipe insertion part in the heat conduction material in the pile,
Immediately after the water pipe is pulled out, a heat collecting pipe construction method is provided in which a heat collecting pipe into which a heat medium capable of exchanging heat with the ground is supplied is inserted into the heat collecting pipe insertion portion. 上記採熱管は、Ｕ字形に折返した先端部を有し、
上記採熱管の先端部に浮き防止の重錘を取り付け、
上記重錘の重みにより上記採熱管挿入部内に上記採熱管を挿入する
ことを特徴とする請求項１記載の採熱管施工方法。 The heat collection tube has a tip portion folded back in a U-shape,
Attach a weight to prevent lifting to the tip of the heat collection tube,
The heat collection tube construction method according to claim 1, wherein the heat collection tube is inserted into the heat collection tube insertion portion by the weight of the weight. 上記杭内熱伝導材で満たされた上記杭の上部に杭中心軸に沿ってガイド管を差し込み、
上記ガイド管を通して上記通水管を挿入する
ことを特徴とする請求項１または２記載の採熱管施工方法。 Insert the guide pipe along the pile central axis into the upper part of the pile filled with the heat conductive material in the pile,
The heat collecting pipe construction method according to claim 1 or 2, wherein the water pipe is inserted through the guide pipe.
JP2011037026A 2011-02-23 2011-02-23 Heat collection tube construction method Active JP5612505B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011037026A JP5612505B2 (en) 2011-02-23 2011-02-23 Heat collection tube construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011037026A JP5612505B2 (en) 2011-02-23 2011-02-23 Heat collection tube construction method

Publications (2)

Publication Number Publication Date
JP2012172937A JP2012172937A (en) 2012-09-10
JP5612505B2 true JP5612505B2 (en) 2014-10-22

Family

ID=46976006

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011037026A Active JP5612505B2 (en) 2011-02-23 2011-02-23 Heat collection tube construction method

Country Status (1)

Country Link
JP (1) JP5612505B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105951745A (en) * 2016-06-30 2016-09-21 青岛理工大学 Prefabricated geothermic energy pipe pile

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015083911A (en) * 2013-10-26 2015-04-30 重信 宮本 Underground heat exchange pile
CN114687315A (en) * 2022-04-19 2022-07-01 玺大建设工程有限公司 Unmanned snow removing station for expressway intercommunication ramp

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6024797Y2 (en) * 1980-12-04 1985-07-24 株式会社長谷川工務店 Positioning device in drilling rig
JPS6250517A (en) * 1985-08-29 1987-03-05 Asahi Chem Ind Co Ltd Method and apparatus for construction of ready-made hollow pile
JP2002235957A (en) * 2001-02-09 2002-08-23 Kubota Corp Terrestrial heat exchange equipment in landslide dangerous area
JP2003082970A (en) * 2001-09-14 2003-03-19 Teruo Yahiro Installation construction method of heat exchange into ground for retrieving shallow layer geothermal energy and hole drilling device thereof
JP3902515B2 (en) * 2002-06-14 2007-04-11 三菱マテリアル資源開発株式会社 Excavation of heat exchange well and underground heat exchange system and its installation method
US20060191719A1 (en) * 2005-02-28 2006-08-31 Roussy Raymond J Method of geothermal loop installation
JP2006349295A (en) * 2005-06-17 2006-12-28 Takenaka Komuten Co Ltd Method of burying pipe for heat exchange
JP2007023577A (en) * 2005-07-14 2007-02-01 Karuto Kk Excavating method for soil and method for burying pipe for purification in dug hole

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105951745A (en) * 2016-06-30 2016-09-21 青岛理工大学 Prefabricated geothermic energy pipe pile
CN105951745B (en) * 2016-06-30 2017-10-20 青岛理工大学 A kind of prefabricated geothermal energy pile tube

Also Published As

Publication number Publication date
JP2012172937A (en) 2012-09-10

Similar Documents

Publication Publication Date Title
JP5990214B2 (en) Reinforcement method of hole wall in construction method of cast-in-place concrete pile.
JP2009281001A (en) Lift prevention method and buried structure for underground buried object
JP2014031914A (en) Method for burying heat exchange pipe of underground heat, and propeller for burying
JP5612505B2 (en) Heat collection tube construction method
CN101713602A (en) Method for embedding ground heat exchanger of ground source heat pump by high-pressure jet grouting
JP6517133B2 (en) Pile construction method
JP2013164103A (en) Embedded pipe structure and method for constructing embedded pipe structure
JP5339962B2 (en) Construction method for underground heat exchanger and hollow tube used in the method
JP2009057760A (en) Groundwater fluidization inhibition preventing method, method of constructing earth retaining wall for preventing groundwater from fluidization inhibition, earth retaining wall constructed by the method and construction method for water flow part
JP5250660B2 (en) Manhole and other floating prevention methods
JP6587921B2 (en) Freezing pipe construction method
CN205444192U (en) Bridge stake is towards pile driving construction system
JP2019015100A (en) Removing method of earth retaining wall
JP2015014165A (en) Construction method of foundation pile
JP6316674B2 (en) Water stop structure and method for underground continuous wall
CN103015435A (en) Long auger down hole hammer vibration rotary-jet steel reinforced cement-soil pile foundation pit water-resisting and supporting method
JP5034581B2 (en) Underground structure construction method and underground structure constructed by the method
CN102434718A (en) Method for reinforcing originating end of push bench
JP5350443B2 (en) Filling device, filling method, plate material insertion method, element insertion method
CN209816830U (en) A slip casting structure for interlock formula campshed construction cold joint
JP5528200B2 (en) Groundwater level lowering method using well points
JP6232962B2 (en) How to build pipe members
JP2008045367A (en) Ground consolidation construction method and ground-subsidence correction construction method
JP2010090557A (en) Casing tube for earth drill method, and method for constructing cast-in-place pile using the same
CN110185295A (en) A kind of the anti-floating underground garage and its construction method of only support pile

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20131126

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20140811

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20140820

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20140904

R150 Certificate of patent or registration of utility model

Ref document number: 5612505

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313117

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250