JPH0449334A - Construction method of underground skeleton - Google Patents
Construction method of underground skeletonInfo
- Publication number
- JPH0449334A JPH0449334A JP2157482A JP15748290A JPH0449334A JP H0449334 A JPH0449334 A JP H0449334A JP 2157482 A JP2157482 A JP 2157482A JP 15748290 A JP15748290 A JP 15748290A JP H0449334 A JPH0449334 A JP H0449334A
- Authority
- JP
- Japan
- Prior art keywords
- columns
- underground
- ground
- column
- construct
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 title description 7
- 238000000034 method Methods 0.000 claims description 9
- 238000009412 basement excavation Methods 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 6
- 238000009415 formwork Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は建造物の地下躯体の構築方法に係るものである
。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method of constructing an underground framework for a building.
（従来の技術）
従来この種の工法においては、地下躯体部分まで根伐り
したのち、杭部分を支持層まで掘削してコンクリートを
打設するか、既成のＰＣ杭を支持層まで貫入して杭を構
築し、しかるのち捨コンクリドを打設してレベル墨出し
を行ない、型枠を組み、地中梁、柱、壁等のコンクリー
トを打設して地下製体を構築していた。(Conventional technology) Conventionally, in this type of construction method, after cutting down to the underground structure, the pile area is excavated to the supporting layer and concrete is poured, or existing PC piles are penetrated to the supporting layer and piled. After that, concrete was poured, the level was marked, formwork was erected, concrete was poured for underground beams, columns, walls, etc., and the underground structure was constructed.
（発明が解決しようとする課Ｂ）
しかしながら前記の方法においては、地下躯体底部まで
掘削しなくてはならず、また場所打ち抗の場合、杭躯体
部分を掘削してコンクリートを打設するため、コンクリ
ートが硬化するまで時間がかかっていた。(Problem B to be solved by the invention) However, in the above method, it is necessary to excavate to the bottom of the underground structure, and in the case of cast-in-place, the pile structure part is excavated and concrete is poured. It took a long time for the concrete to harden.
またレヘル、墨出し等を行なうため、捨コンクリートを
打設しなくてはならず、型枠組立、解体、排出等に手間
がかかる。In addition, in order to perform leveling, marking, etc., it is necessary to pour waste concrete, which requires time and effort in assembling, dismantling, and discharging formwork.
更に抗コンクリートも水が多い掘削場所においてはコン
クリートが分離し易く、品ｎが低下し易い。Furthermore, in excavation sites where there is a lot of water, the concrete tends to separate and the quality of the concrete tends to deteriorate.
本発明は前記従来技術の有する問題点に鑑みて提案され
たもので、その目的とする処は、施工性が向上され、工
期が短縮され、施工の省力化が図られ、しかも構造的Ｇ
コ信転性のある地下躯体の構築方法を提供する点にある
。The present invention has been proposed in view of the problems of the prior art, and its objectives are to improve workability, shorten the construction period, save labor in construction, and improve structural efficiency.
The purpose of the present invention is to provide a method for constructing an underground structure with reliability.
（課題を解決するための手段）
前記の目的を達成するため、本発明に係る地下躯体の構
築方法によれば、根伐り底地盤より建物の側柱及び中柱
位置を掘削し、同各掘削孔に夫々梁、地中壁付きのＰＣ
側柱及びＰＣ中柱を支持層まで挿入したのち、前記側柱
及び中柱間にＰＣｃ梁部材を接合し、次いで地盤を掘削
し、前記同様に前記側柱及び中柱間にＰＣｃ梁部材を接
合し、以下前記工程を反覆するものである。(Means for Solving the Problems) In order to achieve the above-mentioned object, according to the method for constructing an underground framework according to the present invention, the positions of the side columns and middle columns of the building are excavated from the root cutting bottom ground, and each excavation PC with beams and underground walls in each hole
After inserting the side columns and the PC center column up to the support layer, connect the PCc beam member between the side column and the center column, then excavate the ground, and insert the PCc beam member between the side column and the center column in the same manner as above. Then, the above steps are repeated.
（作用）
本発明によれば前記したように、根伐り底地盤より建物
の側柱及び中柱位置を掘削し、同各掘削孔に梁、地中壁
付きのＰＣ側柱及びＰＣ中柱を支持層まで挿入し、上部
地下躯体の柱、杭を先行して施工し、前記側柱及び中柱
間にＰＣｃ梁部材を接合し、地下躯体上部を構築する。(Function) According to the present invention, as described above, the positions of the side pillars and middle pillars of the building are excavated from the ground at the bottom of the cutting, and the beams, the PC side pillars with underground walls, and the PC middle pillars are installed in each excavated hole. The supporting layer is inserted, the columns and piles of the upper underground framework are constructed in advance, and the PCc beam members are joined between the side columns and middle columns to construct the upper part of the underground framework.
更に前記側柱に付設された地中壁を山留壁とし、同側柱
及び前記中柱間に接合されたＰＣ大梁部材を切梁として
利用して、地盤を掘削して、同掘削部におけるＰＣ側柱
及びＰＣｃ柱間にＰＣ大梁部材を連結して下部の地下躯
体を構築し、以下前記同様の工程を反覆して地下躯体を
構築するとともに、前記ＰＣ側柱及び中柱に地下製体の
柱と杭とを兼用せしめるものである。Furthermore, the ground is excavated using the underground wall attached to the side pillar as a retaining wall, and the PC girder members connected between the side pillar and the middle pillar as a strut, and the Connect the PC girder members between the PC side pillars and the PCc pillars to construct the lower underground framework, and then repeat the same process as above to construct the underground framework, and attach the underground framework to the PC side pillars and middle pillars. It is used as both a pillar and a stake.
（実施例） 以下本発明を図示の実施例について説明する。(Example) The present invention will be described below with reference to the illustrated embodiments.
地盤（１）を所定深さまで根伐りし、同相伐り底より側
柱位置及び中柱位置に支持地盤まで掘削し、各掘削孔（
２）（３）に夫々、梁（４）、地中壁（５）付きＰＣ側
側柱法びＰＣｃ柱＋８１を挿入したのち、相隣るＰＣ側
側柱法ＰＣ中柱（Ｂ１間及び相隣るＰＣ中柱（ａ間にＰ
Ｃ大梁部材（０を接合する。The ground (1) is cut down to a predetermined depth, and excavations are made from the bottom of the cutting to the supporting ground at the side pillar positions and middle pillar positions, and each excavation hole (
2) After inserting the beam (4), the PC side column with the underground wall (5) and the PCc column +81 into (3), insert the PC side column with the adjacent PC side column and the PC middle column (between B1 and the phase Adjacent PC middle pillar (P between a)
C girder member (join 0.
第２図はＰＣ中柱＋ＢｌとＰＣｃ梁部材（０との接合部
を示し、ＰＣ中柱ｆｉｌにおけるＰＣ大梁部材（Ｑの接
合部には上下−双の水平鞘管（６）が埋設されている。Figure 2 shows the joint between the PC middle pillar +Bl and the PCc beam member (0), and the PC middle pillar fil has two horizontal sheath pipes (6) buried in the joint of the PC main beam member (Q). There is.
同各鞘管（６）にはＰＣ中柱（印の建込み時に泥水が進
入しないように苦を嵌装しておく。またＰＣ中柱（ａの
前記接合部にはコツター（７）が設けられている。Each of the sheath pipes (6) is fitted with a PC middle pillar (to prevent muddy water from entering during the construction of the mark). Also, a socket (7) is installed at the joint part of the PC middle pillar (a). It is being
而して接合作業に陳じては前記ＰＣ中柱（８１の鞘管（
６）にラップ鉄筋（８）を横貫しておき、相隣るＰＣ中
柱ｆＢ１間、または同ＰＣ中柱ｆＢｌとＰＣ側柱（２）
との間にＰＣｃ梁部材（０を吊込み、同ＰＣ大梁部材Ｃ
＋の端部より突出した梁鉄筋（９）を前記ランプ鉄筋（
８）と重合せしめ、ＰＣ中柱ｆｉｌとＰＣｃ梁部材（Ｑ
との間に接合コンクリート（１０）を打設して、ＰＣ中
柱ｆｉｌとＰＣ大梁部材（Ｃ１とを接合する。In terms of the joining work, the PC middle pillar (81 sheath pipe)
6), pass through the lap reinforcing bars (8) laterally, and connect them between the adjacent PC center columns fB1, or between the same PC center columns fBl and the PC side columns (2).
Suspend the PCc beam member (0) between the PCc beam member C
The beam reinforcing bar (9) protruding from the + end is connected to the ramp reinforcing bar (
8), and overlap the PC middle column fil and PCc beam member (Q
Joining concrete (10) is poured between the two to join the PC center column fil and the PC main beam member (C1).
図中（１１）は型枠である。In the figure (11) is the formwork.
第３図はＰＣ側柱（２）とＰＣ大梁部材（Ｏとの接合部
を示し、同ＰＣ側柱因に埋設された一端部がＰＣ側柱＾
の外周面に開口した鞘管（１２）の他端部を、アンカー
鉄筋（１３）を介してＰＣ側柱囚に定着されたアンカー
金物（１４）に定着し、同アンカー金物（１４ンの雌ね
し孔に一端部を螺着されたねじ付きラップ鉄筋（１５）
の他端部を前記ＰＣ側側柱法り突出せしめ、同う。Figure 3 shows the joint between the PC side column (2) and the PC girder member (O), and one end buried in the PC side column is the PC side column ^
The other end of the sheath pipe (12), which is open on the outer peripheral surface of Threaded lap reinforcing bar with one end screwed into a tapped hole (15)
The other end is made to protrude from the side pillar on the PC side, and the same is true.
ブ鉄筋（１５）とＰＣ大梁部材ｆｃｌの端面より突出し
た梁鉄筋（９）とを重合せしめ、同ＰＣ大梁部材（Ｃ１
と前記ＰＣ側柱（２）とを接合コンクリートを介して結
合するものである。The beam reinforcing bars (15) and the beam reinforcing bars (9) protruding from the end face of the PC girder member fcl are overlapped, and the PC girder member (C1
and the PC side pillar (2) are connected via joint concrete.
図中（１６）は接合コンクリート打設用型枠である。In the figure (16) is a formwork for pouring concrete.
かくして梁、地中壁付きＰＣ側側柱法ＰＣ中柱（Ｂ１間
、及びＰＣ中柱（ａ同志をＰＣｃ梁部材（０で接合した
のち前記梁（４）、地中壁（５）を山留壁とし、前記各
ＰＣｃ梁部材（０を切梁として利用し、前記根伐り底よ
り更に一定深度掘削して、前記同様にしてＰＣ側柱ｔ”
ｙ及びＰＣ中柱（ＢＪをＰＣ大梁部材（Ｑで連結し、以
下前記同様の工程を反覆して地下躯体を構築する。In this way, the beam, PC side column with underground wall PC middle column (between B1 and PC middle column (a) are connected with PCc beam member (0), and then the beam (4) and underground wall (5) are connected to the mountain. Using each PCc beam member (0 as a strut), excavate to a certain depth from the bottom of the cutting, and install PC side pillars t'' in the same manner as above.
y and the PC center column (BJ) are connected by the PC girder member (Q), and the same steps as above are repeated to construct the underground framework.
なおＰＣｃ梁部材（０の代りに鉄骨大梁を使用してもよ
い。Note that a steel girder may be used instead of the PCc beam member (0).
（発明の効果）
本発明によれば前記したように、根伐り底の地盤より建
物の側柱及び中柱位置に設けた掘削孔に、梁、地中壁付
きのＰＣ側柱及びＰＣ中柱を支持層まで挿入して、地下
躯体の柱、抗及び地中壁を施工し、前記ＰＣ側柱及びＰ
Ｃｃ柱間にＰＣ大梁部材を接合することによって地下躯
体の梁を施工するとともに、同梁を切梁、前記ＰＣ側柱
の地中壁、梁を山留壁として爾後の地盤の掘削作業が安
全に行なわれるようにしたのもであり、同地盤の掘削に
伴って前記ＰＣ側柱及びＰＣｃ柱間にＰＣｃ梁部材を接
合して地下１体の下部梁を施工し、以下前記同様の工程
を反覆して地下躯体を構築するものである。(Effects of the Invention) According to the present invention, as described above, beams, PC side columns with underground walls, and PC center columns are installed in the excavated holes made from the ground at the bottom of the cutting at the positions of the side columns and middle columns of the building. are inserted up to the supporting layer, and the pillars, shafts and underground walls of the underground framework are constructed, and the PC side pillars and P
By joining the PC girder members between the Cc columns, we can construct the beams of the underground framework, use the beams as cut beams, use the underground walls of the PC side columns, and use the beams as retaining walls to make subsequent ground excavation work safer. With the excavation of the same ground, PCc beam members were joined between the PC side columns and PCc columns to construct one underground lower beam, and the same process as described above was then carried out. The underground structure is constructed by repeating the process.
このように本発明によれば支持層まで貫入された前記Ｐ
Ｃ側柱及びＰＣ中柱を杭として利用することｌこよって
、地下躯体及び杭の施工が同時に行なわれ、従来の工法
に比して省力化され、工期が短縮され、また工場生産に
よる２０部材によって地下躯体を構築するので、現場打
ちコンクリートによる施工に比して施工が簡単で、部材
に強度上のばらつきがなく、構造的に信較性の高い地下
躯体を構築することができる。As described above, according to the present invention, the P
By using the C side pillars and the PC middle pillars as piles, the underground framework and piles can be constructed at the same time, saving labor and shortening the construction period compared to conventional construction methods. Since the underground framework is constructed using concrete, it is easier to construct than using cast-in-place concrete, there is no variation in the strength of the members, and it is possible to construct an underground framework with high structural reliability.
第１図は本発明に係る地下製体の構築方法の一実施例の
実施状況を示す斜視図、第２図及び第３図は夫々ＰＣ中
柱とＰＣ大梁部材の接合部並にＰＣ側柱とＰＣ大梁部材
の接合部を示す継断面図である。
（２）・・・梁、地中壁付きＰＣ側柱、 （＆・−・Ｐ
Ｃ中柱、（０・・・ＰＣ大梁部材、 （１）
・・・地盤、（２） （３）・・・掘削孔、
（４）・・・梁、（５）・・・地中壁。Fig. 1 is a perspective view showing the implementation status of one embodiment of the method for constructing an underground body according to the present invention, and Figs. 2 and 3 show the joint between the PC center column and the PC girder member, and the PC side column, respectively. FIG. 3 is a joint cross-sectional view showing the joint portion of the main beam member and the PC girder member. (2)... Beam, PC side pillar with underground wall, (&...P
C center column, (0...PC girder member, (1)
...Ground, (2) (3)...Drilling hole,
(4)...beam, (5)...underground wall.
Claims (1)
各掘削孔に夫々梁、地中壁付きのＰＣ側柱及びＰＣ中柱
を支持層まで挿入したのち、前記側柱及び中柱間にＰＣ
大梁部材を接合し、次いで地盤を掘削し、前記同様に前
記側柱及び中柱間にＰＣ大梁部材を接合し、以下前記工
程を反覆することを特徴とする地下躯体の構築方法。Excavate the positions of the side columns and middle pillars of the building from the ground at the bottom of the cutting, and insert the beams, PC side columns with underground walls, and PC middle pillars into the respective excavated holes up to the supporting layer. PC for Hashirama
A method for constructing an underground framework, characterized by joining girder members, then excavating the ground, joining PC girder members between the side columns and middle columns in the same manner as described above, and repeating the above steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2157482A JPH0449334A (en) | 1990-06-18 | 1990-06-18 | Construction method of underground skeleton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2157482A JPH0449334A (en) | 1990-06-18 | 1990-06-18 | Construction method of underground skeleton |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0449334A true JPH0449334A (en) | 1992-02-18 |
Family
ID=15650649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2157482A Pending JPH0449334A (en) | 1990-06-18 | 1990-06-18 | Construction method of underground skeleton |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0449334A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06228979A (en) * | 1993-02-05 | 1994-08-16 | Nippon Concrete Ind Co Ltd | Inverted lining method for building-construction |
-
1990
- 1990-06-18 JP JP2157482A patent/JPH0449334A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06228979A (en) * | 1993-02-05 | 1994-08-16 | Nippon Concrete Ind Co Ltd | Inverted lining method for building-construction |
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