JPS6117973B2 - - Google Patents
Info
- Publication number
- JPS6117973B2 JPS6117973B2 JP52040122A JP4012277A JPS6117973B2 JP S6117973 B2 JPS6117973 B2 JP S6117973B2 JP 52040122 A JP52040122 A JP 52040122A JP 4012277 A JP4012277 A JP 4012277A JP S6117973 B2 JPS6117973 B2 JP S6117973B2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- precast
- slurry
- mixed
- soil
- 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.)
- Expired
Links
- 239000002689 soil Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 11
- 238000010276 construction Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- 239000004567 concrete Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Description
【発明の詳細な説明】
この発明は土留壁、止水壁等を構成する地中壁
の施工法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a construction method for underground walls constituting earth retaining walls, water-stop walls, etc.
従来土留壁等はシートパイル類の打込みが一般
であるが公害問題によつて施工できない場合があ
る。そして現場打ちコンクリートによる地中壁は
施工に高度の技術が要求され、またプレキヤスト
部材を使用する方が強度を確実にコントロールで
きる利点がある。 Conventionally, earth retaining walls and the like are generally constructed using sheet piles, but this may not be possible due to pollution problems. In-ground walls made of cast-in-place concrete require advanced technology to construct, and the use of precast members has the advantage of being able to control strength more reliably.
ところでプレキヤスト材を建込む場合、削孔の
排土処理が必要である。また削孔とプレキヤスト
部材との間〓には埋戻しが必要であるが、単に土
では地中壁として利用できない。 By the way, when building with precast materials, it is necessary to remove the soil from drilling holes. Also, backfilling is required between the drilled hole and the precast member, but simply earth cannot be used as an underground wall.
この発明は前記事情に鑑み開発した工法で、以
下図示した実施例によつて説明する。 This invention is a construction method developed in view of the above circumstances, and will be explained below with reference to the illustrated embodiments.
施工に際しては先ずスタンドパイプ１を沈設す
る。次いでスタンドパイプ１内にリバース機２を
挿入し、泥水工法を利用して所要深さまで穴３を
削孔する。次いでプレキヤスト部材として例えば
Ｈ形鋼４を穴３内に挿入する。次いで前記穴３と
Ｈ形鋼４との間に改良土砂５を充填し、次いでス
タンドパイプ１を引抜く、それらを連続して施工
する。（第１図乃至第１０図参照）
連続して施工する際には穴３を一つ置きに削
孔、Ｈ形鋼４と改良土砂５の充填をなし、次いで
その中間部を同様に施工する。 During construction, first the stand pipe 1 is sunk. Next, a reversing machine 2 is inserted into the standpipe 1, and a hole 3 is drilled to a required depth using the muddy water method. Next, for example, an H-beam 4 as a precast member is inserted into the hole 3. Next, improved soil 5 is filled between the hole 3 and the H-shaped steel 4, and then the stand pipe 1 is pulled out, and these are constructed in succession. (See Figures 1 to 10) When performing continuous construction, drill every other hole 3 and fill with H-beam 4 and improved soil 5, and then perform construction in the same way in the middle. .
改良土砂としては削孔によつて排出した泥水状
の土砂より余分の水分をスクリーンで分離し、次
いでスラリーミキサーに入れてスラリー化し、こ
れに所定量のセメント類の硬化材料を配合し、二
次ミキシングプラントで混合し、コンクリートポ
ンプで穴内に圧送圧入する。 The improved soil is made by separating excess moisture from the muddy soil discharged by drilling holes with a screen, then putting it into a slurry mixer to form a slurry, mixing it with a predetermined amount of hardening material such as cement, and making it into a secondary slurry. It is mixed in a mixing plant and then forced into the hole using a concrete pump.
穴３内へのＨ形鋼の挿入は二列、三列あるいは
一つ置きの穴に挿入してもよい。（第１図乃至第
１２図参照）
さらにＨ形鋼に代えて鋼管６を挿入してもよ
い。そしてこの場合鋼管６内にも改良土砂５を充
填する。（第１２図参照）
その他プレキヤスト部材として鋼矢板、鋼管矢
板、鉄筋コンクリート矢板７、または矢板８等が
使用される。なお第１３図は先に穴３内に挿入し
た矢板８の側縁に設けた雌継手９に、隣接する穴
３内に次に挿入する矢板８の側縁に設けた雄継手
を案内させながら挿入して隣接する矢板相互を接
続したものである。 The H-beams may be inserted into the holes 3 in two rows, three rows, or every other row. (See FIGS. 1 to 12) Furthermore, a steel pipe 6 may be inserted instead of the H-shaped steel. In this case, the steel pipe 6 is also filled with improved soil 5. (See Figure 12) Other precast members that may be used include steel sheet piles, steel pipe sheet piles, reinforced concrete sheet piles 7, or sheet piles 8. In addition, in FIG. 13, the female joint 9 provided on the side edge of the sheet pile 8 inserted into the hole 3 first is guided by the male joint provided on the side edge of the sheet pile 8 to be inserted next into the adjacent hole 3. These are inserted to connect adjacent sheet piles.
また前記穴は円型に限られず、長方型であつて
もよい。 Furthermore, the hole is not limited to a circular shape, but may be rectangular.
この発明は以上の構成からなり、大きめに削孔
した穴にプレキヤスト材を建込むとともに、穴と
プレキヤスト部材との間〓に硬化材料等を混合し
た改良土砂を利用して連続した地中壁を造成で
き、プレキヤスト部材の安定した耐力と相俟つて
確実な地中壁となしうる。特にこの発明では削孔
にリバース機を使用するから土砂は地上に泥水状
となつて水を含んで排出されるが、この土砂より
水分を順次スクリーンで分離し、次いでスラリー
ミキサーでスラリー化し、これにセメント類の硬
化材料を混合し、二次ミキシングプラントで所定
の配合に混合し、所要の強度、および単位体積重
量がえられるように調合するといつた一貫作業に
より充填すべき土砂が容易にえられ、この改良し
た土砂をコンクリートポンプにより圧入充填する
ので排出土砂の有効利用ができ、処分しなければ
ならない排出土砂も少く施工費が低減でき、かつ
硬化材料等を混合した土砂が圧入充填されるから
地盤強化は顕著である。 This invention has the above-mentioned configuration, and in addition to building a precast material into a hole that has been drilled to a large size, a continuous underground wall is built between the hole and the precast material by using improved soil mixed with a hardening material, etc. This allows for reliable underground walls, combined with the stable strength of the precast members. In particular, in this invention, since a reverse machine is used for drilling holes, the earth and sand becomes muddy water on the ground and is discharged containing water.The water is successively separated from this earth and sand by a screen, and then it is turned into a slurry by a slurry mixer. The earth and sand to be filled can be easily prepared through the integrated process of mixing hardening materials such as cement, mixing the mixture to a predetermined composition in a secondary mixing plant, and blending to obtain the required strength and unit volume weight. Since this improved soil is press-filled using a concrete pump, the discharged soil can be used effectively, the amount of discharged soil that must be disposed of is reduced, and construction costs can be reduced, and the soil mixed with hardened materials can be press-filled. The ground reinforcement is remarkable.
第１図と第２図、第３図と第４図、第５図と第
６図、第７図と第８図、および第９図と第１０図
は施工過程の順序に示した横断面図と縦断面図、
第１１図、第１２図、第１３図は変形例を示した
横断面図である。
１……スタンドパイプ、２……リバース機、３
……穴、４……Ｈ形鋼、５……改良土砂、６……
鋼管、７……コンクリート矢板、８……矢板、９
……継手。
Figures 1 and 2, Figures 3 and 4, Figures 5 and 6, Figures 7 and 8, and Figures 9 and 10 are cross sections shown in the order of the construction process. Figures and longitudinal sections,
FIGS. 11, 12, and 13 are cross-sectional views showing modified examples. 1...stand pipe, 2...reverse machine, 3
... Hole, 4 ... H-shaped steel, 5 ... Improved soil, 6 ...
Steel pipe, 7... Concrete sheet pile, 8... Sheet pile, 9
...Joint.
Claims (1)
キヤスト材を建込み、次いで前記削孔によつて地
上に排出した泥水状の土砂より余分の水分をスク
リーンで分離し、スラリーミキサーに入れてスラ
リー化し、これに所定量のセメント類の硬化材料
を配合し、ミキシングプラントで混合して所要の
強度をもたらすように調合した改良土砂を前記穴
とプレキヤスト材との間〓にコンクリートポンプ
により圧入充填し、かつそれらを連続して施工す
ることを特徴とする地中壁の施工法。1. Precast material is built into a hole drilled to a larger size by a reverse machine, and then excess water is separated from the muddy soil discharged to the ground by the drilling with a screen, and the material is put into a slurry mixer to form a slurry. This is mixed with a predetermined amount of hardening material such as cement, and mixed in a mixing plant to provide the required strength.The improved soil is then injected into the space between the hole and the precast material using a concrete pump, and A construction method for underground walls that is characterized by constructing them in succession.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4012277A JPS53125312A (en) | 1977-04-07 | 1977-04-07 | Method of placing underground wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4012277A JPS53125312A (en) | 1977-04-07 | 1977-04-07 | Method of placing underground wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53125312A JPS53125312A (en) | 1978-11-01 |
| JPS6117973B2 true JPS6117973B2 (en) | 1986-05-10 |
Family
ID=12572008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4012277A Granted JPS53125312A (en) | 1977-04-07 | 1977-04-07 | Method of placing underground wall |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS53125312A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH068704Y2 (en) * | 1988-07-04 | 1994-03-09 | 島野工業株式会社 | Fishing cooler |
| KR20220084109A (en) | 2019-11-11 | 2022-06-21 | 프로그래스 가부시키가이샤 | How to prevent exposure to anticancer drugs |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59224725A (en) * | 1983-05-31 | 1984-12-17 | Osaka Cement Kk | Sheathing work |
| JP5158555B2 (en) * | 2006-09-11 | 2013-03-06 | 忠平 直哉 | Ground improvement method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4940967A (en) * | 1972-08-23 | 1974-04-17 | ||
| JPS51136316A (en) * | 1975-05-21 | 1976-11-25 | Nitto Kogyo Kk | Method of constructing continuous columns of underground wall |
| JPS51142816A (en) * | 1975-06-04 | 1976-12-08 | Kumagai Gumi Co Ltd | Method of constructing columns of water stopping land slid protection wall |
-
1977
- 1977-04-07 JP JP4012277A patent/JPS53125312A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4940967A (en) * | 1972-08-23 | 1974-04-17 | ||
| JPS51136316A (en) * | 1975-05-21 | 1976-11-25 | Nitto Kogyo Kk | Method of constructing continuous columns of underground wall |
| JPS51142816A (en) * | 1975-06-04 | 1976-12-08 | Kumagai Gumi Co Ltd | Method of constructing columns of water stopping land slid protection wall |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH068704Y2 (en) * | 1988-07-04 | 1994-03-09 | 島野工業株式会社 | Fishing cooler |
| KR20220084109A (en) | 2019-11-11 | 2022-06-21 | 프로그래스 가부시키가이샤 | How to prevent exposure to anticancer drugs |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53125312A (en) | 1978-11-01 |
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