JPH01239293A - Shield construction and slurry material therefor - Google Patents
Shield construction and slurry material thereforInfo
- Publication number
- JPH01239293A JPH01239293A JP63065790A JP6579088A JPH01239293A JP H01239293 A JPH01239293 A JP H01239293A JP 63065790 A JP63065790 A JP 63065790A JP 6579088 A JP6579088 A JP 6579088A JP H01239293 A JPH01239293 A JP H01239293A
- Authority
- JP
- Japan
- Prior art keywords
- slurry material
- slurry
- water
- cellulose ether
- removal
- 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
- 239000000463 material Substances 0.000 title claims abstract description 44
- 239000002002 slurry Substances 0.000 title claims abstract description 41
- 238000010276 construction Methods 0.000 title claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000004927 clay Substances 0.000 claims abstract description 14
- 229920003086 cellulose ether Polymers 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 239000011345 viscous material Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 239000002075 main ingredient Substances 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 20
- 238000002347 injection Methods 0.000 abstract description 8
- 239000007924 injection Substances 0.000 abstract description 8
- 239000004576 sand Substances 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract 1
- 238000004898 kneading Methods 0.000 description 6
- 239000010802 sludge Substances 0.000 description 6
- 239000002440 industrial waste Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 238000009430 construction management Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- BULLHNJGPPOUOX-UHFFFAOYSA-N chloroacetone Chemical compound CC(=O)CCl BULLHNJGPPOUOX-UHFFFAOYSA-N 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0642—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end
- E21D9/0678—Adding additives, e.g. chemical compositions, to the slurry or the cuttings
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は市街地等におけるトンネルの構築工事に適用さ
れる泥漿シールド工法に係るものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a slurry shield construction method applied to tunnel construction in urban areas and the like.
（従来の技術）
従来のこの種のシールド工法は次のような方法で行なわ
れていた。(Prior Art) Conventionally, this type of shield construction method has been carried out as follows.
ｉ）先ず、トンネル構築計画区間の始点と終点に、夫々
トンネル掘削用の発進立坑及び到達立坑を横築する。i) First, a starting shaft and a reaching shaft for tunnel excavation are constructed horizontally at the start and end points of the planned tunnel construction section, respectively.
１１）始点側の発進立坑内にシールド掘進機を配置した
のち、同掘進機による掘進を開始する。11) After placing a shield excavator in the starting shaft on the starting point side, excavation by the shield excavator is started.
ｉｉ）掘削中は、掘削機前面の切羽の安定を図るため、
地上に設置した泥漿材作泥プラントにより、配管を通じ
て坑内に配置された泥漿付注入用ポンプに泥漿材を送り
込み、そこから注入管により掘削機前面に同泥漿材を注
入しながら掘進する。ii) During excavation, to stabilize the face at the front of the excavator,
A slurry material production plant installed on the ground sends slurry material through piping to a slurry injection pump placed inside the mine, and from there, the slurry material is injected into the front of the excavator using an injection pipe as it excavates.
前記泥漿材としては、次の２種類のうち、いずれかが使
用される。As the slurry material, one of the following two types is used.
ａ） （水土ベントナイト士粉末粘土）を混練した泥
漿材。a) A slurry material made by kneading (water-soil bentonite powder clay).
ｂ） （水＋ＣＭＣ＋ＣＭＣ上）を混練した泥漿材。b) Sludge material made by kneading (water + CMC + CMC top).
ｉｖ＞掘削土砂は、排土用ベルトコンヘアを通して、坑
内に配置された砺運搬車に積込み、そこからバッテリー
式機関車等によって発進立坑に運搬され、地上のクレー
ンによって土砂ポツパーへ投入される。そこからダンプ
トラックで、−旦、仮置場へ運搬し、そこで天日乾燥し
て良質上と混合した後一般残土として処分するか、遠隔
地の産業廃棄物処理場へ運搬して産業廃棄物として処分
する。iv> The excavated earth and sand is loaded into a tow truck placed inside the mine through a belt conveyor for earth removal, and from there it is transported to the starting shaft by a battery-powered locomotive, etc., and is thrown into the earth and sand dropper by a crane on the ground. From there, it is transported by dump truck to a temporary storage site, where it is dried in the sun and mixed with high-quality soil, and then disposed of as general surplus soil, or transported to a remote industrial waste disposal site and treated as industrial waste. dispose.
Ｖ）一方、掘削に並行して、Ｉ頓次掘削機後部に１リン
グごと鋼製またはコンクリート製のセグメントを円筒状
に巻立てていく。V) Meanwhile, in parallel with excavation, steel or concrete segments are rolled up into a cylindrical shape, one ring at a time, at the rear of the I-Tonji excavator.
■）前記１ｕ）〜■）の工程を繰り返しながら、到達立
坑までのセグメント巻立てが完了すると、到達立坑より
シールド掘削機を地上へ引き上げる０以上で一次覆工が
完了する。(2) While repeating the steps 1u) to (2) above, when the segment winding up to the reaching shaft is completed, the primary lining is completed when the shield excavator is pulled up to the ground from the reaching shaft.
ｖｉ）なお、鋼製セグメントを使用する場合には、さら
に二次覆工として、セグメントの内側をコンクリートで
所定のＩγさに巻立てて、トンネルを構築する。vi) When steel segments are used, the tunnel is constructed by wrapping the inside of the segment with concrete to a predetermined Iγ as a secondary lining.
（発明が解決しようとする課題）
従来のこの種の工法は、前記したように泥漿材を使用す
るため、次のような問題点があった。(Problems to be Solved by the Invention) This type of conventional construction method uses slurry material as described above, and therefore has the following problems.
即ち、
ａ） ヘントナイトを混入した泥漿材を使用する場合に
は、公害の問題が発生するため、産業廃棄物として残土
処理する必要があり、−Ｓの処分地で処理できず、遠隔
地の産業廃棄物処理場へ運搬して処分するか、または仮
置場へ掘削土砂を運搬し、そこで天日乾燥した後、−Ｃ
の良質土と混合して一般残土として処理する必要があり
、そのため広大な面積の仮置場を確保しなければならな
い。That is, a) When using slurry material mixed with hentonite, pollution problems occur, so the remaining soil must be disposed of as industrial waste, and it cannot be disposed of at the -S disposal site, leading to industrial waste in remote areas. After transporting the excavated soil to a waste disposal site for disposal or transporting the excavated soil to a temporary storage site and drying it in the sun, -C
It is necessary to mix it with good quality soil and treat it as general surplus soil, which requires securing a vast area of temporary storage site.
ｂ） またベントナイトを混入した泥漿材を使用する場
合には、ヘントナイト、粉末粘土とも大量に使用するた
め、大規模なプラント設備と広いストックヤードが必要
である。b) In addition, when using slurry material mixed with bentonite, large amounts of both hentonite and powdered clay are used, so large-scale plant equipment and a large stockyard are required.
Ｃ） 更にＣＭＣを混入した泥漿材を使用する場合には
、ＣＭＣがイオン性で塩に弱いこと、耐酸素性が弱いた
め、腐敗し易いこと、界面活性が低いため潤滑効果が低
いこと等の理由から泥づ賢材としての性状が変り易く、
安定した施工管理が困難となる。C) Furthermore, when using slurry material mixed with CMC, there are other reasons such as CMC is ionic and weak against salt, has low oxygen resistance and is therefore prone to rot, and has low surface activity and therefore has low lubricating effect. Its properties as a muddy wood are easily changeable,
Stable construction management becomes difficult.
本発明は前記従来技術の有する問題点に迄みて捷案され
たもので、その目的とする処は、公害を招来することが
なく、而も安定した施工管理が行なわれるシールド工法
及び同工法に使用される泥漿材を提供する点にある。The present invention has been devised in view of the problems of the prior art, and its purpose is to develop a shield construction method that does not cause pollution and allows stable construction management, and a shield construction method that does not cause pollution. The point is to provide the slurry material used.
（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おいては、水と非イ
オン性のセルロースエーテルを主成分とした粘稠材と粉
末粘土とを配合して泥漿材を構成したものであり、更に
同泥漿材をシールド掘削機の前面切羽側に注入する泥漿
シールド工法を提供するものである。(Means for Solving the Problems) In order to achieve the above object, in the present invention, a slurry material is constructed by blending a viscous material mainly composed of water and nonionic cellulose ether and powdered clay. Furthermore, the present invention provides a slurry shield construction method in which the same slurry material is injected into the front face side of a shield excavator.
（作用）
本発明によれば前記したように、水と非イオン性のセル
ロースエーテルを主成分とした粘稠材と、粉末粘土とを
配合して無公害の泥漿材を調整し、同泥漿材をシールド
掘削機の前面切羽側に注入することによって切羽の安定
を図るとともに、無公害の泥漿材を使用することにより
、掘削残土を一般の処分地で処分できる。(Function) According to the present invention, as described above, a non-polluting slurry material is prepared by blending a viscous material mainly composed of water and nonionic cellulose ether and powdered clay. By injecting it into the front face side of the shield excavator, the face is stabilized, and by using a non-polluting slurry material, excavated soil can be disposed of at a general disposal site.
また前記泥漿材の水、非イオン性のセルロースエーテル
及び′＃５）未粘土の配合量を変えることによって、切
羽の性状に対応して泥漿材の粘性、比重を調整するもの
である。The viscosity and specific gravity of the slurry can be adjusted in accordance with the properties of the face by changing the blending amounts of water, nonionic cellulose ether, and (#5) non-clay in the slurry.
（実施例） 以下本発明を実施例について説明する。(Example) The present invention will be described below with reference to Examples.
地上における小規模の泥漿付作泥プラント（１）におい
て水と非イオン性のセルロースエーテルを主成分とした
粘稠材と粉末粘土とを配合して泥漿材を調整する。In a small scale mud cultivation plant (1) on the ground, a slurry material is prepared by blending a viscous material mainly composed of water and non-ionic cellulose ether and powdered clay.
次に同泥漿材の配合例を挙げる。Next, an example of the formulation of the same slurry material will be given.
なお前記した（水土ヘントナイト＋む）未粘土）を混練
した泥漿材、及び（水＋ＣＭ Ｃ＋粉末枯に）を混練し
た泥漿材の配合例をも対照例として挙げる。In addition, blending examples of a slurry material obtained by kneading the above-mentioned (water-soil hentonite + non-clay) and a slurry material obtained by kneading (water + CM C + dry powder) are also listed as control examples.
泥漿材の配合例 （単位ｋｇ）
（註）
Ａ；本方法による泥漿材
Ｂｌ水水土ントナイト＋粉末粘土）を混練した泥漿材
Ｃ： （水土ＣＭＣ上粉末粘土）を混練した泥漿材
１ｆｃＥ ：非イオン性のセルロースエーテルなお配
合は掘削地盤の土質状況によって異なる。Mixing example of slurry material (Unit: kg) (Note) A: Sludge material C obtained by kneading slurry material Bl (water, water, soil, tonite + powdered clay) according to this method: Slime material 1fcE: Sludge material obtained by kneading (powdered clay on water, soil CMC) 1fcE: Non-ionic The composition of cellulose ether differs depending on the soil condition of the excavated ground.
前記作泥プラント（１）より配管（２）を介して、シー
ルド掘削機（３）によって掘進された坑内に耐重された
泥漿材注入側ポンプ（４）に泥漿材を供送し、同ポンプ
（４）によって注入管（５）を介してシールド掘削機（
３）の前面切羽（６）側に注入し、切羽の安定を図りな
がら掘進する。The slurry material is supplied from the mud production plant (1) via the piping (2) to the slurry material injection side pump (4) which is heavy-bearing into the tunnel excavated by the shield excavator (3). 4) through the injection pipe (5) by the shield excavator (
3) into the front face (6) side, and excavate while trying to stabilize the face.
掘削土砂（７）は描出しスクリュウコンベヤ（８）及び
排土用へルトコンヘヤ（９）を経て坑内に配設された砺
運搬車（ｌＯ）に積み込み、バッテリー式機関車（１１
）によって発進立坑（１２）に搬送し、地上のクレン（
１３）によって土砂ホッパ（１４）に投入し、そこから
ダンプトラック（１５）で搬出し、−ＪＩＧ残土として
処分する。The excavated earth and sand (7) is loaded onto a tow truck (lO) installed inside the mine via a drawing screw conveyor (8) and an earth removal conveyor (9), and then transported to a battery-powered locomotive (11).
) to the starting shaft (12), and the crane on the ground (
13) into the earth and sand hopper (14), from there it is carried out by a dump truck (15) and disposed of as -JIG residual soil.
図中（１６）はセグメント、（１７）はカッター、（１
８）は進退ジヤツキである。In the figure, (16) is the segment, (17) is the cutter, (1
8) is a forward/backward jerk.
（発明の効果）
本発明に係るシールド工法においては前記したように、
水と非イオン性のセルロースエーテルを主成分とした粘
稠材と粉末粘土とを配合して無公害の泥漿材を調整し、
同泥漿材をシールド掘削機の前面切羽側に注入すること
によって、切羽の安定を図りながらトンネル穴を掘進す
るものであり、無公害の泥漿材を使用するために残土処
分が産業廃棄物扱いにならず、−ＩＩの処分地で処分で
きるので、従来のように広大な面積の仮置）易を確保す
る必要がなく、残土処分の大幅なコストダウンが図られ
る。(Effect of the invention) As described above, in the shield construction method according to the present invention,
A non-polluting slurry material is prepared by blending a viscous material mainly composed of water and non-ionic cellulose ether with powdered clay.
By injecting the same slurry material into the front face side of a shield excavator, the tunnel hole is dug while stabilizing the face. Because the slurry material is non-polluting, the remaining soil can be disposed of as industrial waste. Since the remaining soil can be disposed of at the -II disposal site, there is no need to secure a vast area for temporary storage as in the past, and the cost of disposing of the remaining soil can be significantly reduced.
また切羽の安定を図るために、前記泥漿材は切羽土質の
粒度分布等に対応してその粘性、比重及び注入量を調整
したものを使用する必要があるが、同泥漿材の粘性及び
比重は、水、非イオン性のセルロースエーテルの配合量
を変えるだけで、容易に調整できる。In addition, in order to stabilize the face, it is necessary to use the slurry material whose viscosity, specific gravity, and injection amount are adjusted according to the particle size distribution of the face soil quality. It can be easily adjusted by simply changing the blending amounts of , water, and nonionic cellulose ether.
また泥漿材に使用するセルロースエーテルのｌ預３当り
の使用量が少ないため、プラント設備やストックヤード
が小規模で済む。In addition, because the amount of cellulose ether used for the slurry material is small per liter of storage, the plant equipment and stockyard can be small-scale.
第１図は本発明に係るシールド工法の一実施例の実施状
況を示す縦断側面図である。
（１）泥漿材作泥プラント、（２）−配管、（３）
シールド掘削機、（４）−泥漿材注入側ポンプ、（５）
−−注入管、 （６）切羽。
＼心ＸFIG. 1 is a vertical sectional side view showing the implementation status of one embodiment of the shield construction method according to the present invention. (1) Sludge material sludge production plant, (2) - Piping, (3)
Shield excavator, (4)-Sludge material injection side pump, (5)
--Injection pipe, (6) Face. \heart
Claims (2)
した粘稠材と粉末粘土とを配合してなる泥漿材を、シー
ルド掘削機の前面切羽側に注入することを特徴とするシ
ールド工法。(1) A shield construction method characterized by injecting a slurry material made of a mixture of powdered clay and a viscous material mainly composed of water and non-ionic cellulose ether into the front face side of a shield excavator.
した粘稠材と粉末粘土とを配合してなるシールド工法用
泥漿材。(2) A slurry material for the shield method, which is made by blending powdered clay with a viscous material whose main ingredients are water and nonionic cellulose ether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63065790A JPH0635796B2 (en) | 1988-03-22 | 1988-03-22 | Shield method and slurry material for the same method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63065790A JPH0635796B2 (en) | 1988-03-22 | 1988-03-22 | Shield method and slurry material for the same method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01239293A true JPH01239293A (en) | 1989-09-25 |
| JPH0635796B2 JPH0635796B2 (en) | 1994-05-11 |
Family
ID=13297175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63065790A Expired - Lifetime JPH0635796B2 (en) | 1988-03-22 | 1988-03-22 | Shield method and slurry material for the same method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0635796B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04103689A (en) * | 1990-08-22 | 1992-04-06 | Sanyo Chem Ind Ltd | Solidification agent for water containing soil |
| WO1996018802A1 (en) * | 1994-12-16 | 1996-06-20 | Condat S.A. | Material and method for lubricating the metal surfaces of an earth-pressure tunnel boring machine |
| EP0846747A1 (en) * | 1996-12-09 | 1998-06-10 | Wolff Walsrode Ag | Process for preparation and use of gels as additives for mechanical shield driving |
| CN109184708A (en) * | 2018-10-18 | 2019-01-11 | 上海隧道工程有限公司 | For handling the incrusted sour decomposition method of shield cutter |
| CN109356596A (en) * | 2018-10-30 | 2019-02-19 | 中建交通建设集团有限公司 | The method of shield machine is originated and received using recyclable diaphram wall and steel bushing |
-
1988
- 1988-03-22 JP JP63065790A patent/JPH0635796B2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04103689A (en) * | 1990-08-22 | 1992-04-06 | Sanyo Chem Ind Ltd | Solidification agent for water containing soil |
| JPH0747734B2 (en) * | 1990-08-22 | 1995-05-24 | 三洋化成工業株式会社 | Solidifying agent for hydrous soil |
| WO1996018802A1 (en) * | 1994-12-16 | 1996-06-20 | Condat S.A. | Material and method for lubricating the metal surfaces of an earth-pressure tunnel boring machine |
| FR2728298A1 (en) * | 1994-12-16 | 1996-06-21 | Condat Sa | PRODUCT AND METHOD FOR LUBRICATING THE METAL SURFACES OF AN EARTH PRESSURE TUNNEL |
| EP0846747A1 (en) * | 1996-12-09 | 1998-06-10 | Wolff Walsrode Ag | Process for preparation and use of gels as additives for mechanical shield driving |
| CN109184708A (en) * | 2018-10-18 | 2019-01-11 | 上海隧道工程有限公司 | For handling the incrusted sour decomposition method of shield cutter |
| CN109184708B (en) * | 2018-10-18 | 2022-08-26 | 上海隧道工程有限公司 | Acid decomposition method for treating mud cake formed on shield cutter head |
| CN109356596A (en) * | 2018-10-30 | 2019-02-19 | 中建交通建设集团有限公司 | The method of shield machine is originated and received using recyclable diaphram wall and steel bushing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0635796B2 (en) | 1994-05-11 |
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