JPH0441815A - Provisional wall removing method with jacking up - Google Patents
Provisional wall removing method with jacking upInfo
- Publication number
- JPH0441815A JPH0441815A JP14741890A JP14741890A JPH0441815A JP H0441815 A JPH0441815 A JP H0441815A JP 14741890 A JP14741890 A JP 14741890A JP 14741890 A JP14741890 A JP 14741890A JP H0441815 A JPH0441815 A JP H0441815A
- Authority
- JP
- Japan
- Prior art keywords
- wall
- temporary wall
- provisional
- caisson
- covering material
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 6
- 239000000463 material Substances 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 239000004576 sand Substances 0.000 abstract description 8
- 230000000630 rising effect Effects 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 239000002689 soil Substances 0.000 abstract 2
- 230000003449 preventive effect Effects 0.000 abstract 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、ケーソン本体に連結されて地中に沈設され
た仮壁をジヤツキアップして撤去する方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for jacking up and removing a temporary wall connected to a caisson body and sunk underground.
従来、ケーソン本体に連結して地中、に沈設したコンク
リート製仮壁を撤去する場合は、仮壁を囲む土留め矢板
を打設したのち、その土留め矢板と仮壁との間の土砂を
掘削排出し、次いで仮壁をブレーカ等の破砕家具により
破砕するかまたは火薬により破砕し、次に破砕されたコ
ンクリート塊を地上に搬出し、次いで掘削部の埋戻しを
行なっている。Conventionally, when removing a concrete temporary wall that was connected to the caisson body and sunk underground, the earth retaining sheet pile surrounding the temporary wall was driven, and then the earth and sand between the earth retaining sheet pile and the temporary wall was removed. After excavation and discharge, the temporary wall is crushed with crushing furniture such as a breaker or crushed with gunpowder, the crushed concrete mass is then carried to the ground, and then the excavated portion is backfilled.
前記従来の仮壁撤去方法の場合は、仮壁を囲む土留め矢
板を打設して、その土留め矢板と仮壁との間の土砂を掘
削排出し、かつ仮壁の破砕によって掘下げ凹所に生じた
コンクリート塊を地上に搬出する必要があるので、撤去
作業が煩雑であると共に相当の労力を要し、かつ撤去時
間が長くかかリ、さらに仮壁の下部が破砕されないで残
されることがある。In the case of the conventional temporary wall removal method, earth retaining sheet piles surrounding the temporary wall are driven, earth and sand between the earth retaining sheet piles and the temporary wall is excavated and discharged, and the temporary wall is crushed to create a dug-out recess. The concrete lumps that have formed during this period need to be carried to the ground, so the removal work is complicated and requires a considerable amount of labor, and the removal time is long, and furthermore, the lower part of the temporary wall may be left unbroken. There is.
この発明は前述の問題を有利に解決できるジヤツキアッ
プによる仮壁撤去方法を提供することを目的とするもの
である。An object of the present invention is to provide a method for removing a temporary wall by jacking up, which can advantageously solve the above-mentioned problems.
前記目的を達成するために、この発明のジヤツキアップ
による仮壁撤去方法においては、ケーソン本体ｌの上端
部に付着防止層２を介して筒状の仮壁３を構築し、前記
ケーソン本体１と仮壁３とにわたって連結鋼材４を埋設
し、ケーソン本体１と仮壁３との接合部に、連結鋼材４
を囲むと共に仮壁３の内側に露出する低強度被覆材５を
設け、前記ケーソン本体１および仮壁３を地中の所定深
度まで沈設したのち、ケーソン本体１から立ち上がる構
造物６を構築し、次に前記低強度被覆材５を除去して連
結鋼材４を露出させたのち、その連結鋼材４を切断し、
次に前記構造物６により支持されているジヤツキ７によ
り仮壁３を吊り上げたのち、その仮壁３を破砕する。In order to achieve the above object, in the temporary wall removal method by jacking up of the present invention, a cylindrical temporary wall 3 is constructed on the upper end of the caisson body l with an anti-adhesion layer 2 interposed therebetween, and the temporary wall 3 is connected to the caisson body 1. A connecting steel material 4 is buried across the wall 3, and the connecting steel material 4 is buried at the joint between the caisson body 1 and the temporary wall 3.
A low-strength covering material 5 is provided surrounding the caisson body 1 and exposed inside the temporary wall 3, and after the caisson body 1 and the temporary wall 3 are sunk to a predetermined depth underground, a structure 6 rising from the caisson body 1 is constructed; Next, after removing the low-strength covering material 5 to expose the connecting steel material 4, the connecting steel material 4 is cut,
Next, the temporary wall 3 is lifted up by the jack 7 supported by the structure 6, and then the temporary wall 3 is crushed.
〔実施例〕 次にこの発明を図示の例によって詳細に説明する。〔Example〕 Next, the present invention will be explained in detail using illustrated examples.
まず横断面が円形または４角形あるいは小判形のコンク
リート製ケーソン本体１を製作する際に、ケーソン本体
１の周囲に沿って間隔をおいて配置された多数の垂直な
鉄筋材からなる連結鋼材４の下半部を、ケーソン本体１
の上部の内周側に埋込み、かつケーソン本体１の上端面
にビニルシートまたはゴムマット等からなる付着防止層
２を載置し、発泡スチロール等の低強度材料からなる低
強度被覆材５を、前記連結鋼材４の中間部に嵌挿すると
共に前記付着防止層２に載置する。First, when manufacturing a concrete caisson body 1 with a circular, square, or oval cross section, connecting steel members 4 made of a large number of vertical reinforcing bars arranged at intervals along the periphery of the caisson body 1 are first manufactured. The lower half of the caisson body 1
An anti-adhesion layer 2 made of a vinyl sheet, a rubber mat, etc. is embedded in the inner peripheral side of the upper part of the caisson body 1, and a low-strength covering material 5 made of a low-strength material such as styrene foam is placed on the upper end surface of the caisson body 1. It is inserted into the middle part of the steel material 4 and placed on the anti-adhesion layer 2.
次に前記付着防止層２および低強度被覆材５の上にコン
クリートの仮壁３を築造すると共に、低強度被覆材５を
仮壁３の内側に露出させ、かつ仮壁３の直径方向の両側
にそれぞれ複数の垂直な鋼棒からなるアンカー材８を埋
込み、そのアンカー材８の上部を仮壁３の上端面から突
出させておく。Next, a concrete temporary wall 3 is constructed on the adhesion prevention layer 2 and the low-strength covering material 5, and the low-strength covering material 5 is exposed inside the temporary wall 3, and both sides of the temporary wall 3 in the diametrical direction are Anchor materials 8 made of a plurality of vertical steel rods are embedded in each of the walls, and the upper portions of the anchor materials 8 are made to protrude from the upper end surface of the temporary wall 3.
次にケーソン本体１内の土砂を掘削排出して、ケーソン
本体１および仮壁３を地盤９の所定深度まで沈設したの
ち、第３図に示すように、ケーソン本体１内の上部に型
枠１０を固定し、その型枠１０の上にコンクリートの頂
板１１を施工し、次いでその頂板１１から立ち上がるコ
ンクリート橋脚等の構造物６を構築す°る。Next, the earth and sand inside the caisson body 1 are excavated and discharged, and the caisson body 1 and the temporary wall 3 are sunk to a predetermined depth in the ground 9. As shown in FIG. is fixed, a concrete top plate 11 is constructed on top of the formwork 10, and then a structure 6 such as a concrete pier is constructed rising from the top plate 11.
次に第４図に示すように、前記低強度被覆材５を除去し
たのち、その低強度被覆材５の除去位置で連結鋼材４を
切断し、次いで第５図に示すように、仮壁３と構造物６
との間に土砂１２を埋戻す。Next, as shown in FIG. 4, after removing the low-strength covering material 5, the connecting steel material 4 is cut at the removal position of the low-strength covering material 5, and then, as shown in FIG. and structure 6
Backfill earth and sand 12 between the two.
次に第６図および第７図に示すように、前記アンカー材
８の上端部に、垂直な鋼棒からなる吊り杆１３の下端部
を、スリーブ圧着継手またはねじ継手等の継手１４を介
して連結し、かつ構造物６の上面の両側にそれぞれ平行
に配置された２本のＨ形鋼を結合した架台１５の中間部
を載置し、その架台１５の長手方向の両側に載置したセ
ンターホール型ジヤツキ７に、前記吊り杆１３を挿通し
て係止する。Next, as shown in FIGS. 6 and 7, the lower end of a hanging rod 13 made of a vertical steel rod is attached to the upper end of the anchor member 8 via a joint 14 such as a sleeve crimp joint or a threaded joint. The middle part of a pedestal 15 made up of two H-beams connected and arranged parallel to each other on both sides of the upper surface of the structure 6 is placed, and a center placed on both sides of the pedestal 15 in the longitudinal direction. The suspension rod 13 is inserted into the hole type jack 7 and locked therein.
次に第８図に示すように、ジヤツキ７により仮壁３全体
を地上に吊り上げたのち、仮壁吊り上げにより生じた溝
に土砂を埋戻し、次いで仮壁３を破砕して撤去する。Next, as shown in FIG. 8, after the entire temporary wall 3 is hoisted above the ground by jacks 7, the grooves created by hoisting the temporary wall are backfilled with earth and sand, and then the temporary wall 3 is crushed and removed.
この発明は前述のように構成されているので、以下に記
載するような効果を奏する。Since this invention is configured as described above, it produces the effects described below.
ケーソン本体ｌおよび仮壁３を地中の所定深度まで沈設
したのち、ケーソン本体１から立ち上がる構造物６を構
築し、次に前記低強度被覆材５を除去して連結鋼材４を
露出させたのち、その連結鋼材４を切断し、次に前記構
造物６により支持されているジヤツキ７により仮壁３全
体を吊り上げたのち、その仮壁３を破砕するので、仮壁
３の外側の地盤の掘削を行なうことなく、仮壁３を容易
にかつ迅速に撤去することができ、さらに仮壁３をケー
ソン本体１から完全に分離して撤去することができる。After the caisson main body 1 and the temporary wall 3 are sunk to a predetermined depth underground, a structure 6 rising from the caisson main body 1 is constructed, and then the low-strength covering material 5 is removed to expose the connecting steel material 4. , the connecting steel members 4 are cut, and the entire temporary wall 3 is lifted up by the jacks 7 supported by the structure 6, and then the temporary wall 3 is crushed, so the ground outside the temporary wall 3 is excavated. The temporary wall 3 can be easily and quickly removed without having to carry out any steps, and furthermore, the temporary wall 3 can be completely separated from the caisson body 1 and removed.
【図面の簡単な説明】
図面はこの発明の実施例を示すものであって、第１図は
ケーソン本体の上部に仮壁を構築した状態を示す縦断正
面図、第２図はケーソン本体と仮壁の接合部を拡大して
示す縦断正面図、第３図はケーソン本体および仮壁を所
定の深さまで沈設して構造物を構築した状態を示す縦断
正面図、第４図は低強度被覆材を除去して連結鉄筋を切
断した状態を示す縦断正面図、第５図は仮壁と構造物と
の間に土砂を埋戻した状態を示す縦断正面図、第６図は
仮壁の吊り上げ準備を完了した状態を示す縦断正面図、
第７図はその平面図、第８図は仮壁を地上に吊り上げた
状態を示す縦断正面図である。
図において、１はケーソン本体、２は付着防止層、３は
仮壁、４は連結鋼材、５は低強度被覆材、６は構造物、
７はジヤツキ、８はアンカー材、１１は原版、１３は吊
り杆、１４は継手、１５は架台である。[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal sectional front view showing a state in which a temporary wall has been constructed on the upper part of the caisson main body, and Fig. 2 shows the caisson main body and temporary wall. Figure 3 is a vertical front view showing an enlarged view of the wall joints; Figure 3 is a front view of a structure constructed by sinking the caisson body and temporary walls to a predetermined depth; Figure 4 is a low-strength covering material. Figure 5 is a vertical front view showing the state where earth and sand has been backfilled between the temporary wall and the structure, and Figure 6 is the preparation for lifting the temporary wall. A longitudinal front view showing the completed state;
FIG. 7 is a plan view thereof, and FIG. 8 is a longitudinal sectional front view showing the temporary wall suspended above the ground. In the figure, 1 is the caisson body, 2 is the anti-adhesion layer, 3 is the temporary wall, 4 is the connecting steel material, 5 is the low-strength covering material, 6 is the structure,
7 is a jack, 8 is an anchor material, 11 is an original plate, 13 is a hanging rod, 14 is a joint, and 15 is a frame.
Claims (1)
仮壁３を構築し、前記ケーソン本体１と仮壁３とにわた
って連結鋼材４を埋設し、ケーソン本体１と仮壁３との
接合部に、連結鋼材４を囲むと共に仮壁３の内側に露出
する低強度被覆材５を設け、前記ケーソン本体１および
仮壁３を地中の所定深度まで沈設したのち、ケーソン本
体１から立ち上がる構造物６を構築し、次に前記低強度
被覆材５を除去して連結鋼材４を露出させたのち、その
連結鋼材４を切断し、次に前記構造物６により支持され
ているジャッキ７により仮壁３を吊り上げたのち、その
仮壁３を破砕するジャッキアップによる仮壁撤去方法。A cylindrical temporary wall 3 is constructed on the upper end of the caisson body 1 with an anti-adhesion layer 2 interposed therebetween, and a connecting steel material 4 is buried between the caisson body 1 and the temporary wall 3 to connect the caisson body 1 and the temporary wall 3. A low-strength covering material 5 that surrounds the connecting steel material 4 and is exposed inside the temporary wall 3 is provided at the joint part, and after the caisson main body 1 and the temporary wall 3 are sunk to a predetermined depth underground, the caisson main body 1 rises up. After constructing the structure 6 and then removing the low-strength covering material 5 to expose the connecting steel members 4, the connecting steel members 4 are cut, and then the jack 7 supported by the structure 6 A method for removing a temporary wall by jacking up the temporary wall 3 and then crushing the temporary wall 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2147418A JPH0692657B2 (en) | 1990-06-07 | 1990-06-07 | How to remove the temporary wall by jacking up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2147418A JPH0692657B2 (en) | 1990-06-07 | 1990-06-07 | How to remove the temporary wall by jacking up |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0441815A true JPH0441815A (en) | 1992-02-12 |
| JPH0692657B2 JPH0692657B2 (en) | 1994-11-16 |
Family
ID=15429863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2147418A Expired - Fee Related JPH0692657B2 (en) | 1990-06-07 | 1990-06-07 | How to remove the temporary wall by jacking up |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0692657B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002242198A (en) * | 2001-02-21 | 2002-08-28 | Fukuda Corp | How to build a structure |
| KR20040025771A (en) * | 2002-09-17 | 2004-03-26 | 김지웅 | Container for containing beverage, vermicell and like food, method for manufacturing and use thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03271420A (en) * | 1990-03-22 | 1991-12-03 | Fujita Corp | How to remove a caisson water stop wall |
-
1990
- 1990-06-07 JP JP2147418A patent/JPH0692657B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03271420A (en) * | 1990-03-22 | 1991-12-03 | Fujita Corp | How to remove a caisson water stop wall |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002242198A (en) * | 2001-02-21 | 2002-08-28 | Fukuda Corp | How to build a structure |
| KR20040025771A (en) * | 2002-09-17 | 2004-03-26 | 김지웅 | Container for containing beverage, vermicell and like food, method for manufacturing and use thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0692657B2 (en) | 1994-11-16 |
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