JPH01151621A - Connecting method for underground conduit - Google Patents
Connecting method for underground conduitInfo
- Publication number
- JPH01151621A JPH01151621A JP62308608A JP30860887A JPH01151621A JP H01151621 A JPH01151621 A JP H01151621A JP 62308608 A JP62308608 A JP 62308608A JP 30860887 A JP30860887 A JP 30860887A JP H01151621 A JPH01151621 A JP H01151621A
- Authority
- JP
- Japan
- Prior art keywords
- filling
- mold
- pipe
- concrete
- buried pipe
- 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
- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000004567 concrete Substances 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims description 23
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 239000004576 sand Substances 0.000 claims description 12
- 238000007596 consolidation process Methods 0.000 claims description 7
- 238000009415 formwork Methods 0.000 claims description 7
- 238000009412 basement excavation Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims 2
- 230000008023 solidification Effects 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 4
- 101150114468 TUB1 gene Proteins 0.000 abstract 3
- 230000002093 peripheral effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 241001070941 Castanea Species 0.000 description 1
- 235000014036 Castanea Nutrition 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Sewage (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は下水道等の工事における埋設管渠の接続工法に
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 connecting buried pipes in construction of sewerage systems and the like.
（従来の技術）
従来、埋設管渠２°の接続は、第５図に示す如く掘削ｆ
ｆ１ｍ’にマンホールや集水枡等のコンクリート槽１゛
を設置するとともに、該コンクリート槽１′の側面に穿
孔された接続孔１°ａに埋設管渠２′を接続し、かつそ
の接続部１’ａにモルタルコーキング８を施した後、該
掘削溝ｍ′を埋戻して行っていた。(Prior art) Conventionally, the connection of the buried pipe 2° was carried out by excavating f as shown in Fig. 5.
A concrete tank 1' such as a manhole or a water collection basin is installed in f1m', and a buried pipe 2' is connected to the connection hole 1°a drilled in the side of the concrete tank 1', and the connection part 1 After mortar caulking 8 was applied to 'a', the excavated groove m' was backfilled.
（発明が解決しようとする問題点）
しかしながら、比較的弾性係数の小さい土質である関東
ロームや沖積粘性土等の地層は、掘削時に掘削溝の管渠
基礎床付は面がリバウンド現象により浮き上がるととも
に、管渠埋設後には埋戻土砂の荷重によりほぼ浮き上が
った量だけ沈下し、この沈下量が種々の条件により最大
数センチメートルに及ぶこともある。(Problem to be Solved by the Invention) However, in geological strata such as Kanto loam and alluvial clay, which have soils with a relatively small elastic modulus, the surface of the foundation bed of the excavated trench will rise due to the rebound phenomenon during excavation. After a pipe is buried, it sinks due to the load of the backfilling earth and sand, and this sinking amount can reach up to several centimeters depending on various conditions.
したがって、上記接続工法により埋設管渠を接続すると
、コンクリート槽の設置されている地盤と埋設管渠が設
置されている地盤との沈下量が異なるため、これらの接
続部において著しい不同沈下が発生して、モルタルコー
キング部及び埋設管渠にひび割れが生ずるという問題が
あった。Therefore, when connecting buried pipes using the above connection method, the amount of settlement differs between the ground where the concrete tank is installed and the ground where the buried pipe is installed, so significant uneven settlement will occur at these connection points. However, there was a problem in that cracks occurred in the mortar caulking area and the buried pipe.
さらに、不同沈下により埋設管渠を円滑な水流の維持に
必要な所定の勾配に形成することができないという問題
があった。Furthermore, due to uneven settlement, there was a problem in that the buried pipe could not be formed at a predetermined slope necessary for maintaining smooth water flow.
本発明は以上の問題に鑑みてなされたものであり、その
目的はコンクリート槽と埋設管渠との接続部及び埋設管
渠に、不同沈下によるひび割れを生じさせることなく、
かつ該埋設管渠を円滑な水流の維持に必要な所定の勾配
に形成することのできる埋設管渠の接続工法を提供する
ことである。The present invention has been made in view of the above problems, and its purpose is to prevent cracks from occurring in the connection between the concrete tank and the buried pipe and the buried pipe due to uneven settlement.
Another object of the present invention is to provide a method for connecting buried pipes that can form the buried pipes at a predetermined slope necessary for maintaining smooth water flow.
（問題点を解決するための手段）
以上の問題点を解決するための本発明の手段は埋設管渠
の接続工法を、地下の掘削溝に設置したコンクリート槽
側面に穿孔された接続孔に埋設管渠を遊嵌するとともに
、該接続孔の周面に地表面と連通した注入管を備えた固
結材充填用型枠を設け、かつ該掘削溝を埋戻してその埋
戻土砂の荷重により埋設管渠の下側の地盤が沈下した後
、前記固結材充填用型枠内に注入管を介して固結材を充
填したことを特徴としてなる構成にすることである。(Means for Solving the Problems) The means of the present invention for solving the above problems is to use a method of connecting buried pipes by connecting them to connecting holes drilled in the side of concrete tanks installed in underground excavated trenches. In addition to loosely fitting the pipe, a formwork for filling the consolidating material with an injection pipe communicating with the ground surface is installed on the circumference of the connecting hole, and the excavated trench is backfilled and the load of the backfilling earth and sand is applied. The present invention is characterized in that after the ground below the buried pipe has subsided, the solidifying material filling form is filled with the solidifying material through the injection pipe.
（作用）
而して上記構成によると、コンクリート槽の接続孔に遊
嵌された埋設管渠は、埋戻土砂の荷重により埋設管渠の
下側の地盤の沈下量だけ沈下する。そして、該埋設管渠
はその沈下した状態で接続孔が注入管から固結材充填用
型枠内に充填された固結材により固着されて接続される
。(Function) According to the above configuration, the buried pipe loosely fitted into the connection hole of the concrete tank sinks by the amount of subsidence of the ground below the buried pipe due to the load of backfilling earth and sand. Then, in the submerged state, the connecting hole of the buried pipe is fixedly connected from the injection pipe by the solidifying material filled in the mold for filling the solidifying material.
（実施例） 以上本発明の一実施例を図面に基づいて説明する。(Example) An embodiment of the present invention will be described above based on the drawings.
本発明は、まず始めに所定の地盤にコンクリート槽１及
び埋設管渠２を設置する掘削溝ｍを掘削機等により掘削
した後、その底面に杭を打設し、かつ栗石及びならしコ
ンクリートを打設した基礎６を形成し、その基礎上にコ
ンクリート槽１を設置する。In the present invention, first, an excavator m is used to excavate a trench m in which a concrete tank 1 and a buried pipe 2 are to be installed in a predetermined ground, and then a pile is driven into the bottom of the trench m, and a chestnut stone and leveled concrete are installed. A poured foundation 6 is formed, and a concrete tank 1 is installed on the foundation.
該コンクリート槽１はプレキャスト又は場所打ちコンク
リートで円形、矩形及びその他任意の形状に形成された
マンホール、配水槽、貯水槽及び接合枡、雨水枡、汚水
枡等の集水枡であり、その対向面の下部に埋設管渠２が
遊嵌される接続孔１ａが穿設されている。The concrete tank 1 is a manhole, a water distribution tank, a water storage tank, a water collection tank such as a junction tank, a rainwater tank, a sewage tank, etc. formed of precast or cast-in-place concrete in a circular, rectangular, or other arbitrary shape, and the opposite surface thereof. A connecting hole 1a into which the buried pipe 2 is loosely fitted is bored in the lower part of the pipe.
接続孔１ａは埋設管渠２を遊嵌せしめることができるよ
うに埋設管渠２より大径に形成され、その下部にクツシ
ョン材１ｂが設けられている。The connecting hole 1a is formed to have a larger diameter than the buried pipe 2 so that the buried pipe 2 can be loosely fitted therein, and a cushion material 1b is provided below the connecting hole 1a.
次に前記接続孔１ａに埋設管渠２を遊嵌する。Next, the buried pipe 2 is loosely fitted into the connection hole 1a.
この遊嵌は図示する如く、埋設管渠２先端の短管渠２ｂ
がクツション材１ｂに載置され、がっ接続孔１ａとの間
に適宜空隙部１ｃをもった状態で遊嵌されている。As shown in the figure, this loose fit is connected to the short pipe culvert 2b at the tip of the buried pipe 2.
is placed on the cushion material 1b, and is loosely fitted with an appropriate gap 1c between it and the connection hole 1a.
したがって、埋設管渠２に埋戻土砂ｎの荷重により、埋
設管渠２の下側の地盤Ｓが沈下しても埋設管渠２とコン
クリート槽１との接続部２ｄにひび割れが生ずるのを防
止することができる。Therefore, even if the ground S below the buried pipe 2 sinks due to the load of backfilling earth and sand n on the buried pipe 2, cracks are prevented from forming in the connecting portion 2d between the buried pipe 2 and the concrete tank 1. can do.
埋設管渠２は一端に拡径の嵌入部２ａが形成された適宜
長さの陶管、硬質プラスチック管、鉄筋コンクリート管
及び遠心力鉄筋コンクリート管であり、これらが前記嵌
入部２ａを介して連続的に接続されて通水管路２ｂが形
成される。The buried pipe 2 is a ceramic pipe, a hard plastic pipe, a reinforced concrete pipe, and a centrifugal reinforced concrete pipe of appropriate length, each having an enlarged-diameter insertion part 2a formed at one end, and these pipes are continuously connected through the insertion part 2a. They are connected to form a water passageway 2b.
次に、該埋設管渠２が遊嵌された接続孔１ａの周囲に固
結材充填用型枠３が形成される。Next, a formwork 3 for filling a consolidation material is formed around the connection hole 1a into which the buried pipe 2 is loosely fitted.
該固結材充填用型枠３は半円柱体状に形成されたコルゲ
ートバイブ３ａが接続孔１ａを保護するようにコンクリ
ート槽１の周面に接着され、側面に穿孔された貫通孔３
ｂには埋設管渠２が遊嵌されるとともに、上面には注入
管４が立設されている。The solidifying material filling form 3 has a corrugated vibrator 3a formed in a semi-cylindrical shape adhered to the circumferential surface of the concrete tank 1 so as to protect the connection hole 1a, and a through hole 3 bored in the side surface.
A buried pipe 2 is loosely fitted into b, and an injection pipe 4 is erected on the upper surface.
したがってこの状態で埋設管渠２は接続孔１ａに対して
フレキシブルに取り付けられているため、埋設土砂ｎの
荷重により埋設管渠２の下側の地盤Ｓが沈下しても、そ
の沈下に伴って該埋設管渠２が全体的に沈下するので、
その接続部２ｄのひび割れ及びその他の部分の損傷を防
止することができる。Therefore, in this state, the buried pipe 2 is flexibly attached to the connection hole 1a, so even if the ground S below the buried pipe 2 sinks due to the load of the buried earth and sand, the sinking Since the buried pipe 2 sinks entirely,
Cracks in the connecting portion 2d and damage to other parts can be prevented.
前記注入管４は塩化ビニール製であり、コンクリート槽
１の側面に接着して設けられ、その上端が地表面から突
出されるとともに下端が固結材充填用型枠３の空隙部３
ｃに連通されることにより、該空隙部３ｃへの固結材の
注入が可能となる。 又、該注入管４の下端は固結材充
填用型枠３の上面から容易に引き抜くことができる程度
に取り付けられている。The injection pipe 4 is made of vinyl chloride and is attached to the side surface of the concrete tank 1, with its upper end protruding from the ground surface and its lower end extending into the cavity 3 of the formwork 3 for filling the consolidation material.
By communicating with c, it becomes possible to inject the solidifying material into the cavity 3c. Further, the lower end of the injection pipe 4 is attached to such an extent that it can be easily pulled out from the upper surface of the mold 3 for filling the consolidation material.
次に、該掘削溝ｍに土砂ｎを埋戻して、その埋戻土砂ｎ
の荷重による沈下に伴って埋設管渠２の下側の地盤Ｓ及
び埋設管渠２が沈下した後、短管渠２ｂをコンクリート
槽１の内側から所定の勾配に修正する。Next, the excavated trench m is backfilled with earth and sand, and the backfilling earth and sand n
After the ground S below the buried pipe 2 and the buried pipe 2 sink due to the sinking due to the load, the short pipe 2b is corrected to a predetermined slope from the inside of the concrete tank 1.
然る後、注入管４から固結材５を固結材充填用型枠内の
空隙部３ｃに注入して該空隙部３Ｃ及び接続孔１ａに充
填させることにより、これらが固着されて埋設管渠２を
コンクリート槽１に接続する。After that, by injecting the consolidating material 5 from the injection pipe 4 into the void 3c in the mold for filling the consolidating material and filling the void 3C and the connecting hole 1a, these are fixed and the buried pipe is formed. Connect the drain 2 to the concrete tank 1.
そして、該注入管４内に砂又は土砂等７を充填し、それ
をつき固めた後、該注入管４を引き抜いて撤去する。After filling the injection pipe 4 with sand or earth and sand 7 and compacting it, the injection pipe 4 is pulled out and removed.
前記固結材５はモルタル等が使用されるが、モルタルに
限らず、防水性及び固着性に優れているものであればど
のようなものであっても良い。Mortar or the like is used as the consolidation material 5, but it is not limited to mortar and may be any material as long as it is excellent in waterproofness and adhesion.
（発明の効果）
本発明は以上の様な構成にしたことにより下記の効果を
有する。(Effects of the Invention) The present invention has the following effects by having the above configuration.
■ コンクリート槽の接続孔に埋設管渠を接続するとと
もに、該接続孔の周面に固結材充填用型枠を設け、かつ
掘削溝を埋戻してその埋戻土砂の荷重により埋設管渠の
下側の地盤が沈下した後、前記固結材充填用型枠内に固
結材を充填して埋設管渠を接続したことにより、コンク
リート槽の設置されている地盤と埋設管渠が設置されて
いる地盤との沈下量が異なる不同沈下が発生しても、埋
設管渠２がその下側の地盤の沈下量にともなって沈下す
るので、埋設管渠とコンクリート槽との接続部及び埋設
管渠に生ずるひび割れを防止することができる。■ At the same time as connecting a buried pipe to the connection hole of the concrete tank, a formwork for filling the consolidating material is provided on the circumference of the connection hole, and the excavated trench is backfilled and the buried pipe is After the lower ground subsides, the concrete tank is installed in the ground where the concrete tank is installed and the buried pipe is connected by filling the solidifying material into the formwork and connecting the buried pipe. Even if unequal settlement occurs, the buried pipe 2 will sink with the amount of subsidence of the ground below, so the connection between the buried pipe and the concrete tank and the buried pipe Cracks that occur in the drain can be prevented.
■ 掘削溝を埋戻してその埋戻土砂の荷重により埋設管
渠の下側の地盤が沈下した後に、コンクリート槽の内側
から接続孔と遊嵌された埋設管渠の勾配を修正すること
ができるので、円滑な水流の維持に必要な所定の管勾配
を確保することができる。■ After the excavated trench is backfilled and the ground below the buried pipe sinks due to the load of the backfilled earth and sand, the slope of the connecting hole and the buried pipe loosely fitted can be corrected from inside the concrete tank. Therefore, a predetermined pipe gradient necessary for maintaining smooth water flow can be ensured.
第１図乃至第３図は本発明の埋設管渠の接続工法を示し
た縦断面図、第４図は埋設管渠をコンクリート槽に接続
した状態の斜視図、第５図は従来例を示す縦断面図であ
る。
１：コンクリート槽 ２：埋設管渠
２ａ：接続孔 ３：固結材充填用型枠４：注入
管 ５：固結材
ｍ：掘削溝 ｎ：埋戻土砂Figures 1 to 3 are longitudinal sectional views showing the method of connecting buried pipes according to the present invention, Figure 4 is a perspective view of the buried pipe connected to a concrete tank, and Figure 5 shows a conventional example. FIG. 1: Concrete tank 2: Buried pipe 2a: Connection hole 3: Formwork for filling consolidation material 4: Injection pipe 5: Consolidation material m: Excavation groove n: Backfill earth and sand
Claims (1)
た接続孔に埋設管渠を遊嵌するとともに、該接続孔の周
面に地表面と連通した注入管を備えた固結材充填用型枠
を設け、かつ該掘削溝を埋戻してその埋戻土砂の荷重に
より埋設管渠の下側の地盤が沈下した後、前記固結材充
填用型枠内に注入管を介して固結材を充填したことを特
徴としてなる埋設管渠の接続工法。A formwork for filling consolidation material, in which a buried pipe is loosely fitted into a connection hole drilled on the side of a concrete tank installed in an underground excavation trench, and an injection pipe connected to the ground surface is provided around the connection hole. and after the excavated trench is backfilled and the ground below the buried pipe sinks due to the load of the backfilling earth and sand, solidification material is poured into the mold for filling the solidification material through the injection pipe. A method of connecting buried pipes characterized by filling them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62308608A JPH01151621A (en) | 1987-12-08 | 1987-12-08 | Connecting method for underground conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62308608A JPH01151621A (en) | 1987-12-08 | 1987-12-08 | Connecting method for underground conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01151621A true JPH01151621A (en) | 1989-06-14 |
Family
ID=17983089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62308608A Pending JPH01151621A (en) | 1987-12-08 | 1987-12-08 | Connecting method for underground conduit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01151621A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7012480B2 (en) | 2001-05-31 | 2006-03-14 | Matsushita Electric Industrial Co., Ltd. | Surface acoustic wave filter, balanced type filter and communication device |
| JP2013040481A (en) * | 2011-08-15 | 2013-02-28 | Kajima Corp | Back filling processing method for perpendicular catch basin in created ground |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61242228A (en) * | 1985-04-18 | 1986-10-28 | Denki Koji Nishikawagumi:Kk | Formwork for laying corrugated hard polyethylene tube and its laying work |
-
1987
- 1987-12-08 JP JP62308608A patent/JPH01151621A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61242228A (en) * | 1985-04-18 | 1986-10-28 | Denki Koji Nishikawagumi:Kk | Formwork for laying corrugated hard polyethylene tube and its laying work |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7012480B2 (en) | 2001-05-31 | 2006-03-14 | Matsushita Electric Industrial Co., Ltd. | Surface acoustic wave filter, balanced type filter and communication device |
| JP2013040481A (en) * | 2011-08-15 | 2013-02-28 | Kajima Corp | Back filling processing method for perpendicular catch basin in created ground |
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