JPS62211491A - Tunnel drilling mechanism using water absorble resin - Google Patents
Tunnel drilling mechanism using water absorble resinInfo
- Publication number
- JPS62211491A JPS62211491A JP5368786A JP5368786A JPS62211491A JP S62211491 A JPS62211491 A JP S62211491A JP 5368786 A JP5368786 A JP 5368786A JP 5368786 A JP5368786 A JP 5368786A JP S62211491 A JPS62211491 A JP S62211491A
- Authority
- JP
- Japan
- Prior art keywords
- water
- muddying
- agent
- soil
- resin
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 30
- 229920005989 resin Polymers 0.000 title claims description 18
- 239000011347 resin Substances 0.000 title claims description 18
- 238000005553 drilling Methods 0.000 title 1
- 239000003795 chemical substances by application Substances 0.000 claims description 26
- 239000002689 soil Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 17
- 238000009412 basement excavation Methods 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 12
- 239000002250 absorbent Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 239000004576 sand Substances 0.000 description 4
- 239000004927 clay Substances 0.000 description 3
- 239000003673 groundwater Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 206010037844 rash Diseases 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- NPERTKSDHFSDLC-UHFFFAOYSA-N ethenol;prop-2-enoic acid Chemical compound OC=C.OC(=O)C=C NPERTKSDHFSDLC-UHFFFAOYSA-N 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000000017 hydrogel Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- PTLRDCMBXHILCL-UHFFFAOYSA-M sodium arsenite Chemical compound [Na+].[O-][As]=O PTLRDCMBXHILCL-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、シールド工法、もしくは推進工法において、
掘削部の崩壊を防止するとともに止水効果をもたせるた
め、切羽に液状の加泥剤を注入し、その掘削面土砂と混
合撹拌させつつ掘削を行う、いわゆる土庄系掘削機を使
用したトンネル掘削方法に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention provides a shield construction method or a propulsion construction method.
A tunnel excavation method using a so-called Tonosho type excavator, in which a liquid muddying agent is injected into the face, mixed with the excavated surface soil, and stirred while excavating in order to prevent the excavation from collapsing and to provide a water-stopping effect. Regarding.
（従来の技術）
近年シールド工法、推進工法によるトンネル築造は、適
用土質範囲も広くなり、粘性土層、砂層、巨礫層と苛酷
な条件下での施工が多くなっている。(Conventional technology) In recent years, tunnel construction using the shield method and propulsion method has been applied to a wider range of soil types, and is often constructed under harsh conditions such as clayey soil layers, sand layers, and boulder layers.
したがって、掘進機の形式も、経済性、工事公害問題等
より補助工法を併用する必要の多い開放手掘り型から密
ｒＲ型へと発展し、現在、密閉型が主流でありさらに密
閉型の中でも特に土庄系掘進機を使用する工法が多くな
っている。Therefore, the type of excavator has evolved from the open manual excavation type, which often requires the use of auxiliary methods due to economic efficiency and construction pollution issues, to the close rR type.Currently, the closed type is the mainstream, and among the closed types, In particular, construction methods that use Tonosho type excavators are becoming more common.
土庄系掘進機は第１図、第２図に示すように、油圧ジヤ
ツキ１によって前進されるシールド筒体２の前端の掘進
機チャンバー３内に、回転駆動される掘進機カッター４
が備えられ、そのチャンバー３の背面には、土砂搬出用
のスクリューコンベア５が配置され、かつ、チャンバー
３内に吐出口６．６・・・より加泥剤を加圧注入できる
ようにしている。As shown in FIGS. 1 and 2, the Tonosho type excavator has a rotatably driven excavator cutter 4 in an excavator chamber 3 at the front end of a shield cylinder 2 that is advanced by a hydraulic jack 1.
A screw conveyor 5 for transporting earth and sand is arranged on the back side of the chamber 3, and a muddying agent can be injected into the chamber 3 under pressure from a discharge port 6.6. .
このような土庄系掘進機では切羽を安定させ、止水効果
をもたせ、なおかつ掘削土砂を紅進機チャンバー３から
スクリューコンベア５を経て円滑に排土するためにチャ
ンバー３に加泥剤を注入して掘削土砂をｄ合攪拌し、掘
削土砂を改良している。In such Tonosho-type excavators, a muddying agent is injected into the chamber 3 in order to stabilize the face, provide a water-stopping effect, and to smoothly discharge the excavated soil from the Koshin machine chamber 3 via the screw conveyor 5. The excavated soil is mixed and mixed to improve the excavated soil.
加泥剤は主に８進機カッター４の全面の吐出孔６より注
入しており、従来使用されている加泥剤はペンナイト、
粘土及び水の混合体を主体としたものが使用されている
。The muddying agent is mainly injected through the discharge hole 6 on the entire surface of the octal machine cutter 4, and the muddying agent conventionally used is pennite,
A mixture mainly of clay and water is used.
（発明が解決しようとする問題点）
このような従来の１〜ンネル掘削方法では次の如き問題
がある。(Problems to be Solved by the Invention) The conventional single-channel excavation method has the following problems.
■ 加泥剤の粘性、粒度特性に限界があり、完全に掘削
土砂を改良できず、改良土が塑性流動性に欠けるため、
切羽崩壊やスクリューゲート７よりの地下水噴発が起る
。この現象によりトンネル掘進が不能となる。■ Due to limitations in the viscosity and particle size characteristics of muddying agents, excavated soil cannot be completely improved, and the improved soil lacks plastic fluidity.
Face collapse and groundwater eruption from screw gate 7 will occur. This phenomenon makes tunneling impossible.
■ 加泥剤が地下水に希釈され、劣化が杓しい。■ The muddying agent is diluted in groundwater, resulting in rapid deterioration.
■ １６１−産地のペンナイト、粘土の品質にバラツキ
があり、作泥管理が難しい。■ 161 - The quality of pennite and clay in the production area varies, making it difficult to manage mud production.
■ 加泥剤作泥プラント及び圧送設備が大規模である。■Sludge production plant and pumping equipment are large-scale.
■ 加泥剤の注入率、特性ｍ管理の幅が狭い。■ The scope for controlling the injection rate and characteristics of the muddying agent is narrow.
■ 混線改良したＢ削土がペンナイト汚泥となるため産
業廃棄物の扱いとなる。■ B excavated soil that has been improved with crosstalk becomes penite sludge and is treated as industrial waste.
本発明はこのような従来の問題を解決するトンネル掘削
方法の提供を目的としたものである。The present invention aims to provide a tunnel excavation method that solves these conventional problems.
（＠照点を解決するための手段）
上述の如き従来の問題を解決するための本発明の要旨と
する構成はトンネル内の切羽面外に液状の加泥剤を注入
し、ｙＮ把削面土砂と混合撹拌させつつ掘削を行い、前
記加泥剤とともに掘削土砂を排出させるトンネル掘削方
法において、前記加泥剤として、球状の高吸水性樹脂粒
を水に混合したものを使用することを特徴としてなる吸
水性樹脂を用いるトンネル掘削方法に存する。(@Means for solving illumination points) The gist of the present invention to solve the above-mentioned conventional problems is to inject liquid muddying agent outside the face of the tunnel, and to remove soil from the yN gripping surface. A tunnel excavation method in which excavation is carried out while mixing and agitating the muddy agent, and the excavated soil is discharged together with the muddying agent, characterized in that a mixture of spherical super-absorbent resin particles mixed with water is used as the muddying agent. The present invention relates to a tunnel excavation method using a water-absorbing resin.
球状の高吸水性樹脂として公知のものが使用可能である
が、とくにアクリル酸・ビニルアルコール共重合体が以
下に示す理由により好適である。Although known spherical superabsorbent resins can be used, acrylic acid/vinyl alcohol copolymers are particularly suitable for the reasons described below.
■ 吸水後もしっかりとした球状を維持できるゲル強度
を有している。■ It has gel strength that allows it to maintain a firm spherical shape even after absorbing water.
■ 吸水能力が大きく純水の場合は自重の１０００倍程
度まで吸水ｉ１能である。■ It has a large water absorption capacity, and in the case of pure water, it can absorb water up to about 1000 times its own weight.
■ 吸水後は圧力を加えても放水することがなく、固体
粒子状である。■ After absorbing water, it does not release water even if pressure is applied, and is in the form of solid particles.
■ 多種の粒径に加工できる。■ Can be processed into various particle sizes.
（作用）
このトンネル掘削方法は球状の高吸水性樹脂を水に混合
した加泥剤を使用し、これを切羽部分に注入すると加泥
剤中の球状の高吸水性樹脂に切羽の土のｌＩＩ隙水及び
加泥剤中に含まれている水が吸収され、その樹脂が球状
のまま膨張する。このように切羽の水が吸水されること
によって切羽からの出水が止められ、また、掘削された
土砂と吸水後の球状の樹脂粒とが混合されて排出される
こととなり、その際に樹脂粒によるベアリング効果によ
り排出が容易になる。(Function) This tunnel excavation method uses a muddying agent that is a mixture of spherical super-absorbent resin and water, and when this is injected into the face, the spherical super-absorbent resin in the muddying agent mixes with the soil at the face. The water contained in the pore water and muddying agent is absorbed, and the resin expands while remaining spherical. By absorbing the water in the face in this way, water from the face is stopped, and the excavated earth and sand are mixed with the spherical resin particles after water absorption and are discharged. Evacuation is facilitated by the bearing effect.
（実施例） 次に本発明の実施例について説明する。(Example) Next, examples of the present invention will be described.
このトンネル掘削方法は、従来土圧系シールド工法およ
び推進工法と同様に第１図、第２図に示す如き加泥剤を
使用する土庄系Ｉｉ１進機を使用し、チャンバー３内へ
各吐き出し口６，６・・・より加泥剤を注入しつつ促進
機力ツタ−４を回転させて切羽を順次掘削する。This tunnel excavation method uses a Tonosho type Ii single machine that uses a muddying agent as shown in Figures 1 and 2 in the same way as the conventional earth pressure shield method and propulsion method. 6, 6... While injecting the muddying agent, the accelerating machine 4 is rotated to excavate the face one by one.
この掘削に際して使用する加泥剤として球状の高吸水性
樹脂粒を水と混合して使用する。Spherical super-absorbent resin particles are mixed with water and used as a muddying agent during this excavation.
この樹脂粒としては、吸水前において直径約１０〜２０
０μ程度の球状をなし、充分に吸水した後には５００〜
７００倍程度にｌ１１１！する高吸水性樹脂剤を使用す
る。この材料としては、例えば水に１１潤してヒドロゲ
ルを形成するアクリル酸・ビニルアルコール共重合体高
分子材料である住友化学工業株式会社のスミカゲル５−
５０ ＜商標）を使用する。These resin particles have a diameter of approximately 10 to 20 mm before water absorption.
It has a spherical shape of about 0μ, and after absorbing enough water, it has a diameter of 500~
About 700 times l111! Use a super absorbent resin agent. Examples of this material include Sumikagel 5, manufactured by Sumitomo Chemical Co., Ltd., which is an acrylic acid/vinyl alcohol copolymer polymer material that forms a hydrogel when moistened with water.
50 <Trademark).
この樹脂粒を水１ｍ３に対して２〜５ｋｏ程度混入し、
チャンバー３内に注入されたときに体積が約２００倍程
度まで膨張した状態となるように混合時期を調整し、注
入ポンプにてチャンバー３内に注入する。Mix about 2 to 5 ko of this resin particles to 1 m3 of water,
The mixing timing is adjusted so that the volume expands to about 200 times when the solution is injected into the chamber 3, and the solution is injected into the chamber 3 using an injection pump.
このようにして水と高吸水性樹脂粒とを混合させた加泥
剤をチャンバー３内に注入した状態で拙進機カッター４
を回転させつった削を行うとＢ削土砂と加泥剤が混合攪
拌されている間に樹脂粒が切羽の土の間隙水を吸水して
直径０．１〜２鵬−程度の球状に膨張する。With the muddying agent mixed with water and super absorbent resin particles being injected into the chamber 3 in this way, the Hushinki cutter 4
When grinding is carried out by rotating B, the resin particles absorb the pore water of the soil at the face and expand into a spherical shape with a diameter of about 0.1 to 2 mm while the B cutting sand and muddying agent are mixed and stirred. do.
このように切羽の水を吸水することによって、切羽から
の出水を止め、また掘削された土と球状物が混合されて
排土されるので、その際球状物のベアリング効果によっ
て排土され易くなった状咀でスクリューコンベア４によ
り排出される。By absorbing water in the face in this way, water is stopped from flowing out from the face, and the excavated soil and spherical objects are mixed and discharged, making it easier to remove the soil due to the bearing effect of the spherical objects. It is discharged by the screw conveyor 4 in the shape of a stick.
また、高吸水性樹脂粒は球状に加工されているので、切
羽の土に注入され土と混合させる際、程良く混合される
。Furthermore, since the superabsorbent resin particles are processed into spherical shapes, when they are injected into the soil of the face and mixed with the soil, they are properly mixed.
（発明の効果）
本発明の吸水性５ｉｆｔを用いるトンネル掘削方法は上
述の如く構成され、土庄系シールド工法、推進工法に用
い、土質条件に適した吸水倍率で注入し掘削土砂を改良
する場合、次の様な特性が得られ、従来のペンナイト、
粘土を主体とした加泥剤の問題点を解決できる。(Effects of the Invention) The tunnel excavation method using the water absorbing 5ift of the present invention is configured as described above, and is used in the Tonosho shield method and propulsion method, and when improving excavated soil by injecting water at a water absorption capacity suitable for soil conditions, The following characteristics are obtained, and conventional pennite,
It can solve the problems of clay-based muddying agents.
イ、高吸水性樹脂が球体であるためベアリング効果を有
し、掘削土を完全に塑性流動化することとができる。し
たがって、切羽安定が確実となる。B. Since the superabsorbent resin is spherical, it has a bearing effect and can completely plastically fluidize excavated soil. Therefore, face stability is ensured.
口、吸水能力があるため、地下水の噴発に対処できる。Because it has a mouth and water absorption ability, it can cope with eruptions of underground water.
ハ、地下水による希釈に伴う省電がない。C. There is no power saving due to dilution with groundwater.
二、工場生産であるため高分子吸水性ａｌ脂の品質が一
定である。Second, since it is produced in a factory, the quality of the high molecular weight water-absorbing alkaline fat is constant.
ホ、加泥剤の注入率、特性ｆ１１管理幅が広い。E. The injection rate of the muddying agent and the characteristic f11 can be controlled over a wide range.
へ、＠水させた球状の高分子吸水性樹脂は低粘性である
ためプラント、圧送設備が小規模である。Since the spherical water-absorbing polymer resin has low viscosity, the plant and pumping equipment are small-scale.
ト、混線改良した掘削土が産業廃棄物とならず取扱い易
い。Furthermore, the excavated soil that has been improved by cross-conducting does not become industrial waste and is easy to handle.
第１図は本発明の実施例に使用する従来の土圧系シール
ド「逸機の概略を示すＦＪ断面図、第２図は同正面図で
ある。
１・・・・・・油圧ジヤツキ、２・・・・・・シールド
筒体、３・・・・・・チャンバー、４・・・・・・掘進
機カッター、５・・・・・・スクリュコンベア、６・・
・・・・吐出口。Fig. 1 is a sectional view of a conventional earth pressure system shield used in an embodiment of the present invention, and Fig. 2 is a front view of the same. ... Shield cylinder, 3 ... Chamber, 4 ... Excavator cutter, 5 ... Screw conveyor, 6 ...
...Discharge port.
Claims (1)
土砂と混合撹拌させつつ掘削を行い、前記加泥剤とねり
まぜられた掘削土砂を排出させるトンネル掘削方法にお
いて、前記加泥剤として、球状の高吸水性樹脂粒を水に
混合したものを使用することを特徴としてなる吸水性樹
脂を用いるトンネル掘削方法。A tunnel excavation method in which a liquid muddying agent is injected outside the face of the tunnel, excavation is performed while mixing and stirring the muddying agent, and the excavated soil mixed with the muddying agent is discharged. A method for excavating a tunnel using a water-absorbing resin, characterized by using a mixture of spherical super-absorbent resin particles in water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5368786A JPS62211491A (en) | 1986-03-13 | 1986-03-13 | Tunnel drilling mechanism using water absorble resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5368786A JPS62211491A (en) | 1986-03-13 | 1986-03-13 | Tunnel drilling mechanism using water absorble resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62211491A true JPS62211491A (en) | 1987-09-17 |
Family
ID=12949723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5368786A Pending JPS62211491A (en) | 1986-03-13 | 1986-03-13 | Tunnel drilling mechanism using water absorble resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62211491A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62267389A (en) * | 1986-05-15 | 1987-11-20 | Kurita Water Ind Ltd | Mud adjustor |
| JPH01223292A (en) * | 1988-03-02 | 1989-09-06 | Penta Ocean Constr Co Ltd | Drilling of tunnel |
| JPH05311985A (en) * | 1992-05-08 | 1993-11-22 | Ohbayashi Corp | Earth pressure shield driving method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57108394A (en) * | 1980-12-23 | 1982-07-06 | Kajima Corp | Shielded excavation |
| JPS5827780A (en) * | 1981-08-12 | 1983-02-18 | Sumitomo Chem Co Ltd | Transportation of soil |
-
1986
- 1986-03-13 JP JP5368786A patent/JPS62211491A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57108394A (en) * | 1980-12-23 | 1982-07-06 | Kajima Corp | Shielded excavation |
| JPS5827780A (en) * | 1981-08-12 | 1983-02-18 | Sumitomo Chem Co Ltd | Transportation of soil |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62267389A (en) * | 1986-05-15 | 1987-11-20 | Kurita Water Ind Ltd | Mud adjustor |
| JPH01223292A (en) * | 1988-03-02 | 1989-09-06 | Penta Ocean Constr Co Ltd | Drilling of tunnel |
| JPH05311985A (en) * | 1992-05-08 | 1993-11-22 | Ohbayashi Corp | Earth pressure shield driving method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1309909C (en) | Follow-up mud jacking rotary digging drilling hole bored concrete pile technology | |
| JPS62211491A (en) | Tunnel drilling mechanism using water absorble resin | |
| CN105041326A (en) | Water-rich diabase and slate irregular mutual invasion rock shield residue soil improving method | |
| CN105089671A (en) | Muck improvement method for full-section extra-hard diabase stratum shield tunneling | |
| JPH08104868A (en) | Capsule-like ground improving material and engineering method for improving ground using the same | |
| JPH083976A (en) | Vertical drain method | |
| JPH04136398A (en) | Shield construction method using pressure of mud and earth | |
| JPH03131400A (en) | Method for coagulating earth and sand and mud shield method using the same | |
| JPH04343997A (en) | Shield excavating method | |
| JPH01239293A (en) | Shield construction and slurry material therefor | |
| JPS5836715B2 (en) | shield tunneling machine | |
| JPH10169365A (en) | Method of shield tunneling method for weak soil and drilling-fluid additive | |
| JPS61141783A (en) | Soil conditioner and injection of same | |
| CN208717130U (en) | Dredging and sludge treatment system | |
| JPH07991B2 (en) | Shielding method using super absorbent resin | |
| JP3158940B2 (en) | Lost mud prevention method in muddy water method | |
| JPS59134296A (en) | Earth pressure shield drilling method | |
| JPH01231983A (en) | Treatment of earth and sand containing heghly water-absorbing resin gel | |
| JPH0747088B2 (en) | Anti-foaming / de-gelling agent for drilling | |
| JP3044954B2 (en) | Mud pressure shield method | |
| JP2022088898A (en) | Treatment method and treatment device of rising portion of ground improvement body | |
| JPH0868296A (en) | Gravel corresponding type slurry pressurized excavation method and excavator thereof | |
| JP2662577B2 (en) | Ground stabilization method and injection pipe for tunnel excavation | |
| JP2686514B2 (en) | Non-excavation propulsion method of sludge injection type | |
| JPH0560033B2 (en) |