JPH01219212A - Pile or continuous wall and its constructing method - Google Patents
Pile or continuous wall and its constructing methodInfo
- Publication number
- JPH01219212A JPH01219212A JP4349888A JP4349888A JPH01219212A JP H01219212 A JPH01219212 A JP H01219212A JP 4349888 A JP4349888 A JP 4349888A JP 4349888 A JP4349888 A JP 4349888A JP H01219212 A JPH01219212 A JP H01219212A
- Authority
- JP
- Japan
- Prior art keywords
- soil cement
- soil
- cement
- excavated
- hole
- 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 17
- 239000002689 soil Substances 0.000 claims abstract description 147
- 239000004568 cement Substances 0.000 claims abstract description 132
- 239000000654 additive Substances 0.000 claims abstract description 13
- 238000009412 basement excavation Methods 0.000 claims description 27
- 238000003756 stirring Methods 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000012779 reinforcing material Substances 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 2
- 238000003908 quality control method Methods 0.000 abstract description 2
- 230000000996 additive effect Effects 0.000 abstract 2
- 239000010802 sludge Substances 0.000 abstract 2
- 238000010276 construction Methods 0.000 description 10
- 238000005553 drilling Methods 0.000 description 8
- 239000008267 milk Substances 0.000 description 5
- 210000004080 milk Anatomy 0.000 description 5
- 235000013336 milk Nutrition 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 239000004567 concrete Substances 0.000 description 4
- 238000004898 kneading Methods 0.000 description 3
- 238000013019 agitation Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、掘削穴の掘削により生じた土を利用してソ
イルセメントを作り、これを掘削穴に戻して硬化させる
ことを目的としたくい又は連続壁とその構築方法に関す
るものである。[Detailed Description of the Invention] (Industrial Application Field) This invention is a soil cement for making soil cement using the soil produced by excavating an excavation hole, and returning it to the excavation hole to harden it. Or it relates to continuous walls and their construction methods.
（従来の技術）
従来、現場造成くい又は現場造成連続壁は、掘削穴を掘
削し、掘削土を全部排除した後、掘削穴内へ鉄筋篭など
の補強材を挿入し、ついでコンクリートモルタルを投入
して、コンクリートモルタルを硬化し、鉄筋コンクリー
トくい又は鉄筋コンクリート連続壁を構築していた。ま
た、掘削穴の掘削時に適宜量のセメントミルクを混入し
てソイルセメント化し、これを硬化してソイルセメント
くい又はフィルセメント連続壁を構築することも知られ
ていた。(Conventional technology) Conventionally, on-site construction piles or on-site construction continuous walls are constructed by excavating an excavated hole, removing all the excavated soil, inserting reinforcing material such as a reinforcing bar cage into the excavated hole, and then pouring concrete mortar. Then, the concrete mortar was hardened and reinforced concrete piles or reinforced concrete continuous walls were constructed. It has also been known to mix an appropriate amount of cement milk during excavation of an excavation hole to form soil cement, and to harden this to construct a soil cement pile or fill cement continuous wall.
（発明により解決すべき課題）
前記従来のコンクリートくいの構築方法においては、強
固なコンクリートくいを構築できる反面、掘削泥土の量
が厖大になるので、その処理の為に工費が著しく増大し
、かつ工期遅延の原因となり、その上、現在においては
産業廃棄物の処理場所が少なくなり、新規に開拓するの
は限界となっているので、掘削泥土の処理に苦慮するな
どの問題点があった。また、掘削穴内で泥土をソイルセ
メント化する場合には、そのソイルセメントくい又はソ
イルセメント連続壁の強度が深さ方向の位置により著し
く相違する問題点があるので、使用に耐えない場合が多
々あった。何故ならば、セメントミルクの注入は、掘削
進行中、又は撹拌中に行うので、泥土量に応じた必要量
を注入できるが、混合状態が必ずしも均一でなく、かつ
水分量との調整も困難であり、その上、撹拌したとして
も、長いくいく例えば２０ｍ〜４０ｍ）の全長に亘って
上下撹拌は不可能の為に、或位置ではセメントミルクが
多く、或位置では少なく、時にはセメントミルクが全く
ない部分も生じるなど、ソイルセメントくいの強度的信
頼度がきわめて小さく、しかもこれを検出することも極
めて困難であった。従つてこれらの対策として多大のセ
メントミルクを使用して多くの残土、排土を発生させる
場合が多々あり、かつ強度を要求する構造物としては、
ソイルセメントくい又はソイルセメント連続壁は採用し
得ないこともあった。(Problems to be Solved by the Invention) In the conventional method for constructing concrete piles, although strong concrete piles can be constructed, the amount of excavated mud becomes enormous, so the construction costs for processing it increase significantly, and This caused a delay in the construction period, and on top of that, there were also problems such as difficulties in processing the excavated mud since there are currently fewer places to process industrial waste and there is a limit to new development. Furthermore, when turning mud into soil cement in an excavated hole, there is a problem in that the strength of the soil cement piles or soil cement continuous walls varies significantly depending on the position in the depth direction, so they are often unusable. Ta. This is because cement milk is injected during excavation or stirring, so the required amount can be injected depending on the amount of mud, but the mixing condition is not necessarily uniform and it is difficult to adjust the amount of moisture. Moreover, even if it is stirred, it is impossible to stir it up and down over a long length (for example, 20 m to 40 m), so there is a lot of cement milk in some places, little in some places, and sometimes there is no cement milk at all. The reliability of the soil cement pile's strength was extremely low, as there were some areas where it was missing, and it was also extremely difficult to detect this. Therefore, as a countermeasure to these problems, a large amount of cement milk is often used to generate a large amount of residual soil and soil, and for structures that require strength,
In some cases, soil cement piles or soil cement continuous walls could not be used.
（課題を解決する為の手段）
然るにこの発明は、掘削土の全部又は一部を地上に回収
し、これに目的に合せた適量のセメントと、要すれば添
加剤とを混入して撹拌し、ソイルセメントとして再び掘
削穴に戻すことにより、前記従来の問題点を解決したの
である。(Means for Solving the Problems) However, this invention collects all or part of the excavated soil above ground, mixes it with an appropriate amount of cement according to the purpose, and if necessary, additives, and stirs the soil. The above-mentioned conventional problems were solved by returning the soil cement to the excavation hole.
即ちこの発明の一つは、掘削穴の掘削土を地上に取り出
し、適量のセメントおよび添加剤と共に撹拌混合して、
ソイルセメント化し、このソイルセメントを前記掘削穴
の下部より順次充填することを特徴としたくい又は連続
壁の構築方法である。That is, one of the inventions is to take excavated soil from an excavated hole above ground, stir and mix it with an appropriate amount of cement and additives,
This is a method for constructing a pile or a continuous wall, characterized in that the soil cement is formed into soil cement, and the soil cement is sequentially filled from the bottom of the excavated hole.
また、この発明の他の一つは、掘削穴へ鉄筋篭又は鉄骨
などの補強材を挿入し、然る後ソイルセメントを充填す
ることを特徴とする請求項１記載のくい又は連続壁の構
築方法である。Another aspect of the present invention is to construct the pile or continuous wall according to claim 1, characterized in that a reinforcing material such as a reinforcing bar basket or a steel frame is inserted into the excavated hole, and then soil cement is filled. It's a method.
更にこの発明の他の一つは、掘削穴ヘソイルセメントを
充填し、然る後、鉄筋篭又は鉄骨などの補強材を挿入す
ることを特徴とする請求項１記載のくい又は連続壁の構
築方法である。Still another aspect of the present invention is the construction of the pile or continuous wall according to claim 1, characterized in that the excavated hole is filled with soil cement, and then a reinforcing material such as a reinforcing bar cage or a steel frame is inserted. It's a method.
またこの発明の他の一つは、掘削穴の掘削進行に伴って
生じる掘削土、又はソイルセメントとの置換に伴って生
じる泥土、泥水の全部又は一部に適量のセメントと要す
れば添加剤を加え、撹拌してソイルセメント化し、この
ソイルセメントを掘削穴へ充填することを特徴としたく
い又は連続壁の構築方法である。Another aspect of the present invention is to add an appropriate amount of cement and, if necessary, additives to all or part of the excavated soil produced as the excavation progresses, or muddy soil or muddy water produced as a result of replacement with soil cement. This is a method for constructing piles or continuous walls, which is characterized by adding and stirring to form soil cement, and filling the excavated hole with this soil cement.
次にこの発明の他の一つは、掘削土を掘削穴内で泥土化
し、この掘削穴内へその底側から掘削土の一部を用いて
予め地上で作ったソイルセメントを充填し、ソイルセメ
ントの充填により溢出する泥水を用いてソイルセメント
を作り、これをその掘削穴に逐次充填することを特徴と
したくい又は連続壁の構築方法である。Next, in another aspect of the present invention, the excavated soil is turned into mud in an excavated hole, and soil cement made in advance on the ground using a part of the excavated soil is filled into this excavated hole from the bottom side. This method of constructing piles or continuous walls is characterized by making soil cement using muddy water that overflows during filling, and sequentially filling the excavated hole with this soil cement.
またこの発明の物の発明においては、掘削穴の掘削によ
り生じた土を地上でソイルセメント化し、このソイルセ
メントを掘削穴に戻して硬化させたことを特徴とするソ
イルセメントくいを構成した。Further, in the product invention of the present invention, a soil cement pile is constructed in which soil produced by excavating an excavation hole is turned into soil cement on the ground, and this soil cement is returned to the excavation hole and hardened.
更に他の発明においては、掘削穴の掘削により生じた土
を地上でソイルセメント化し、このソイルセメントを掘
削穴に戻して補強材と一体的に硬化させたことを特徴と
するソイルセメントくいを楕成し、また他の発明におい
ては、複数本のくい穴に相当する巾の連続した掘削穴を
掘削し、この掘削により生じた土を地上に回収してソイ
ルセメント化し、又はソイルセメントの充填により門出
した泥水をソイルセメント化し、このソイルセメントを
前記掘削穴に戻し、補強材と共に硬化させたことを特徴
とする連続壁を構成しな。Still another invention provides a soil cement pile characterized in that the soil produced by excavating an excavation hole is turned into soil cement on the ground, and the soil cement is returned to the excavation hole and hardened integrally with the reinforcing material. In another invention, a continuous excavation hole with a width equivalent to a plurality of stake holes is excavated, and the soil produced by this excavation is collected on the ground and turned into soil cement, or by filling with soil cement. The continuous wall is constructed by converting the discharged muddy water into soil cement, returning the soil cement to the excavation hole, and hardening it together with the reinforcing material.
前記各発明において、何れも泥土又は泥水にセメントと
添加剤とを加えてソイルセメント化したが、泥水等の水
分量は必要範囲に調節すると共に、セメント量も目的と
するｍ遺物の品質に対応して過不足のないように調整す
ることは勿論である。In each of the above inventions, cement and additives are added to muddy soil or muddy water to form soil cement, but the moisture content of muddy water, etc. is adjusted to the required range, and the amount of cement also corresponds to the quality of the target artifact. Of course, adjustments should be made to ensure that there is no excess or deficiency.
（作 用）
前記のように、この発明においては、掘削穴の掘削によ
り生じた土の全部又は一部を地上に回収し、これにセメ
ントおよび添加剤を混入して撹拌し、均−質のソイルセ
メントとする。ついでこのソイルセメントを掘削穴に戻
すようにしたので、掘削による排土処理量が激減すると
共に、ソイルセメントの品質管理が十分できるので、均
等強度のソイルセメントくい又はソイルセメント連続壁
を構築することができる。(Function) As described above, in the present invention, all or part of the soil produced by excavating an excavation hole is collected on the ground, and cement and additives are mixed therein and stirred to form a homogeneous soil. Use soil cement. Since this soil cement is then returned to the excavation hole, the amount of soil to be disposed of during excavation is drastically reduced, and the quality of the soil cement can be adequately controlled, so it is possible to construct soil cement piles or soil cement continuous walls of uniform strength. Can be done.
また必要なセメント量が把握されるので、従来の工法に
比較して過不足のないセメント量を選定して使用するこ
とができる。Furthermore, since the required amount of cement is known, it is possible to select and use the right amount of cement compared to conventional construction methods.
（実施例１）
この発明を第１図乃至第３図の実施例について説明する
。(Example 1) This invention will be described with reference to the embodiments shown in FIGS. 1 to 3.
くい穴の掘削予定地へ、掘削刃１１とスクリューｌａよ
りなるスクリューオーガー１によってくい穴２を掘削し
、掘削土は撹拌槽３へ回収し、該゛撹拌槽３内へ適量の
セメントおよび添加剤（例えばセメント量は掘削土の１
５％程度）と、要すれば水を加えて撹拌することにより
、均質のソイルセメント４を作り、このソイルセメント
４を移送管５により、くい穴２の底部から順次ソイルセ
メント４を充填する。この場合にくい穴２は空穴の場合
と、泥水が満されている場合とがあるが、何れにしても
くい穴２の底部からソイルセメント４を順次充填するこ
とにより、ソイルセメント４はほぼ同質のまま、くい穴
２内に充填される。従ってそのまま硬化すれば、均質の
ソイルセメントくい７が構築される。A pile hole 2 is excavated at the planned site for excavation with a screw auger 1 consisting of a drilling blade 11 and a screw la, the excavated soil is collected into a stirring tank 3, and an appropriate amount of cement and additives are poured into the stirring tank 3. (For example, the amount of cement is 1 of the excavated soil.
A homogeneous soil cement 4 is made by adding water (approximately 5%) and stirring if necessary, and the soil cement 4 is sequentially filled into the hole 2 from the bottom through a transfer pipe 5. In this case, the difficult hole 2 may be empty or filled with muddy water, but in either case, by sequentially filling the soil cement 4 from the bottom of the difficult hole 2, the soil cement 4 becomes almost homogeneous. Filled into the hole 2 as it is. Therefore, if it hardens as it is, a homogeneous soil cement pile 7 will be constructed.
前記において、ソイルセメント４を充填する前に、補強
材６をくい穴２へ挿入しておけば、設計強度のソイルセ
メントくい７ができる。前記作業によるソイルセメント
くい７は、全部現場作業構築できるから、現場の土質、
その他の条件に応じたセメント量を調節して、求める強
度のソイルセメントくいとすることができる。In the above, if the reinforcing material 6 is inserted into the pile hole 2 before filling the soil cement 4, the soil cement pile 7 with the designed strength can be obtained. The soil cement pile 7 can be constructed entirely on-site, so it depends on the soil quality at the site,
By adjusting the amount of cement according to other conditions, soil cement piles with the desired strength can be obtained.
前記実施例においては、くい穴２内に補強材６を挿入後
、ソイルセメント４を充填したが、ソイルセメント４を
充填後、補強材６を挿入することもできる。In the embodiment described above, the soil cement 4 was filled after the reinforcing material 6 was inserted into the borehole 2, but the reinforcing material 6 could also be inserted after the soil cement 4 was filled.
前記補強材６としては、鉄筋篭又は鉄骨が用いられる。As the reinforcing material 6, a reinforcing bar cage or a steel frame is used.
また造成目的によっては、補強材６を用いない場合もあ
る。前記において、掘削土は殆んどソイルセメント４の
材料として使用されるので、排土量は激減する（例えば
排土量は掘削土の３０％以下）、前記において掘削土は
泥土化し、例えば吸収管２４により撹拌槽へ運ばれる。Further, depending on the purpose of construction, the reinforcing material 6 may not be used. In the above, since most of the excavated soil is used as a material for soil cement 4, the amount of excavated soil is drastically reduced (for example, the amount of excavated soil is less than 30% of the excavated soil). It is conveyed by pipe 24 to a stirring tank.
図中１８はソイルセメント圧送ポンプ、１９は同じく移
送ホース、２０は撹拌軸、２１はモータ、２２は減速機
、２３はセメント供給管である。In the figure, 18 is a soil cement pressure pump, 19 is a transfer hose, 20 is a stirring shaft, 21 is a motor, 22 is a speed reducer, and 23 is a cement supply pipe.
（実施例２）
次に第４図乃至第６図について、他の実施例を説明する
。(Embodiment 2) Next, another embodiment will be described with reference to FIGS. 4 to 6.
前記実施例１は、スクリューオーガーによってくい六を
掘削し、くい六を一旦、空穴又は泥水入り穴としたが、
この実施例は掘削土をくい穴壁に練りつけ、残留泥水と
ソイルセメントとを置換する方法である。In the first embodiment, the screw auger was used to excavate the pile six, and the pile six was once made into an empty hole or a hole filled with muddy water.
This embodiment is a method in which excavated soil is kneaded into the walls of a pit to replace residual muddy water and soil cement.
即ち、回転軸８に撹拌杆９と、練りつけドラム１０と、
掘削刃１１とをうけた掘削杆１２を使用してくい穴２を
掘削する。前記掘削杆１２を回転すると、掘削刃１１に
よって掘削された土は逐次破砕される。That is, a rotating shaft 8, a stirring rod 9, a kneading drum 10,
A drill hole 2 is excavated using a drilling rod 12 fitted with a drilling blade 11. When the excavation rod 12 is rotated, the soil excavated by the excavation blade 11 is successively crushed.
そこで、掘削杆１２の進行に伴い掘削土は、撹拌杆９で
撹拌されて泥土化されつつ練りつけドラム１０で穴壁へ
練りつけられる。この場合に回転軸８の先端から加圧水
を若干噴射すれば、掘削土は適度の泥状となり容易に練
りつけられる（但し、地下水の出ない場合）。このよう
にして、くい穴２が予定の深さに達したならば、掘削杆
１２からソイルセメント４を（い穴内底より順次送り込
み、泥水と置換して、くい穴２内ヘソイルセメント４を
充填した後、硬化すればソイルセメントくい１３が構築
できる。前記において置換により生じた泥水には適量の
セメントおよび添加剤を混入してフィルセメント４とし
、次位のくい穴２に充填するので、この工程を順次籠り
返すことによって掘削土の廃棄量はきわめて少なくなり
（掘削土のほぼ１０％程度）、排土処理労力、費用およ
び時間を著しく節減することができる。As the excavation rod 12 advances, the excavated soil is stirred by the stirring rod 9 and turned into mud, and then kneaded into the hole wall by the kneading drum 10. In this case, if a small amount of pressurized water is injected from the tip of the rotary shaft 8, the excavated soil becomes a suitable mud-like consistency and can be easily kneaded (provided that no groundwater is available). In this way, when the pile hole 2 reaches the planned depth, the soil cement 4 is fed into the hole 2 from the drilling rod 12 (sequentially from the bottom of the hole, displacing the muddy water, and adding soil cement 4 to the inside of the pile hole 2). After filling and hardening, the soil cement pile 13 can be constructed.The muddy water generated by the above replacement is mixed with an appropriate amount of cement and additives to form the fill cement 4, and the next pile hole 2 is filled with it. By sequentially repeating this process, the amount of excavated soil to be discarded becomes extremely small (approximately 10% of the excavated soil), and the labor, cost, and time for disposing of the excavated soil can be significantly reduced.
（実施例３）
次に第７図および第８図について、他の実施例を説明す
る。(Embodiment 3) Next, another embodiment will be described with reference to FIGS. 7 and 8.
前記実施例１．２は何れも単独くいを構築する方法に関
するものであるが、この実施例は連続壁を構築する方法
について説明する。Although Examples 1 and 2 above both relate to methods of constructing single piles, this example describes a method of constructing continuous walls.
第７図に示すように、三つのくい六を連続させた掘削穴
１５を三本の掘削杆１２ａ、１２ｂ、１２ｃで同時に掘
削しつつ、掘削土を泥土化し、その一部を各ドラム１０
ａ、１０ｂ、１０ｃにより穴壁に練りつけて掘進する。As shown in FIG. 7, an excavated hole 15 with three consecutive piles is simultaneously excavated with three drilling rods 12a, 12b, and 12c, and the excavated soil is turned into mud, and a part of it is poured into each drum 10.
Knead it on the hole wall using a, 10b, and 10c and dig.
このようにして掘削穴１５が予定の深さに達したならば
、地上の撹拌Ｗ！Ｉ３内で掘削土とセメントとの混合に
より作ったソイルセメント４は、ホース２５ａ、２５ｂ
、２５ｃを介して、各掘削杆１２ａ、１２ｂ、１２ｃか
ら夫々掘削穴底に充填する。When the drilled hole 15 reaches the planned depth in this way, the ground agitation W! Soil cement 4 made by mixing excavated soil and cement in I3 is connected to hoses 25a and 25b.
, 25c, the bottom of the excavated hole is filled from each excavation rod 12a, 12b, 12c.
この充填により溢れた泥水は、ホース１６ａ、１６ｂ、
１６ｃによって撹拌槽３に導き、適宜量のセメントおよ
び添加剤を添加してソイルセメント化し、撹拌混合によ
り十分均質化したソイルセメント４は、前記掘削杆１２
ａ、１２ｂ、１２ｃを介して掘削穴１５内へ夫々充填す
る。The muddy water overflowing due to this filling is removed by the hoses 16a, 16b,
The soil cement 4, which has been introduced into the stirring tank 3 through the stirring tank 16c, is made into soil cement by adding an appropriate amount of cement and additives, and is sufficiently homogenized by stirring and mixing.
The excavated hole 15 is filled through holes a, 12b, and 12c, respectively.
前記操作によれば、濡出泥水を逐次ソイルセメント化す
る為に撹拌ＷＩ３の容積は比較的小さくすむと共に、ソ
イルセメントを作ってから長い時間をとることなく、充
填するので、充填前に水和するおそれがなく、作業を円
滑に進行させることができる０図中１７は泥水移送ポン
プ、１８はソイルセメント圧送ポンプ、１９はソイルセ
メント移送ホース、２０．２５は撹拌軸である。According to the above operation, the volume of the agitation WI3 is relatively small because the leachate mud is sequentially turned into soil cement, and the filling is performed without taking a long time after making the soil cement, so the hydration is done before filling. In the figure, 17 is a mud water transfer pump, 18 is a soil cement pressure pump, 19 is a soil cement transfer hose, and 20.25 is a stirring shaft.
前記実施例において、例えば第１の連続壁１４が構築で
きたならば、適当間隔（連続壁１４の巾より若干短い位
）をおいて、第２の連続壁１４ａを構築し、ついで両連
続壁の間に第３の連続壁１４ｂｔ−構築するようにすれ
ば、充填流のソイルセメントの硬化によって近接掘削穴
の崩壊を防止し、作業を円滑化することができる。In the above embodiment, for example, once the first continuous wall 14 is constructed, the second continuous wall 14a is constructed at an appropriate interval (slightly shorter than the width of the continuous wall 14), and then both continuous walls are constructed. By constructing the third continuous wall 14bt between the holes, the soil cement of the filling flow can be hardened to prevent collapse of the adjacent excavated hole and facilitate the work.
また補強材は、ソイルセメントの置換前、又は置換後の
適宜の時機に挿入することができる。Further, the reinforcing material can be inserted at an appropriate time before or after replacing the soil cement.
（発明の効果）
この発明は、くい穴などの掘削穴の掘削時に生じる排土
の全部、又は一部を地上に回収し、これにセメントおよ
び添加剤を混入してソイルセメント化し、このソイルセ
メントを再び掘削穴内へ戻して硬化させるので、ソイル
セメントの均質化ができることになり、品質管理が容易
になると共に、その硬化によるソイルセメントくいの信
頼度を飛躍的に増大し得る効果がある。(Effect of the invention) This invention collects all or a part of the waste soil generated during excavation of an excavation hole such as a pile hole on the ground, mixes cement and additives with it to make soil cement, and produces soil cement. Since the soil cement is returned to the excavated hole and hardened, the soil cement can be homogenized, quality control becomes easier, and the reliability of the soil cement pile due to its hardening can be dramatically increased.
また掘削土を大部分ソイルセメント化して使用できるの
で、掘削土の廃棄量が著しく低減し、排土に要する労力
、費用および時間を著しく節減し得るなどの諸効果があ
る。Furthermore, since most of the excavated soil can be converted into soil cement for use, the amount of excavated soil to be disposed of is significantly reduced, and the labor, cost, and time required for soil removal can be significantly reduced.
図はこの発明の施工順序を示すもので、第１図はスクリ
ューオーガーによりくい六を掘削する状態を示す断面図
、第２図はくい穴ヘソイルセメントを充填する断面図、
第３図はソイルセメントくいを構築した状態の断面図、
第４図はこの発明の他の実施例のくい穴掘削の断面図、
第５図は同じくソイルセメントと泥水との置換を示す断
面図、第６図は同じくソイルセメントくいを構築した状
態の断面図、第７図はこの発明の連続壁を構築する場合
の平面図、第８図は同じく断面図である。
１・・・スクユーオーガ−２・・・くい穴３・・・撹拌
槽 ４・・・ソイルセメント５・・・移送
管 ６・・・補強材７・・・ソイルセメン
トくい ８・・・回転軸９・・・撹拌杆 １
０・・・練りっけドラム１１・・・掘削刃
１２・・・掘削杆１４・・・ソイルセメント連続壁
特許出願人 三谷セキサン株式会社The figures show the construction order of this invention. Figure 1 is a cross-sectional view showing the state in which a hole is excavated by a screw auger, Figure 2 is a cross-sectional view showing the state in which the hole is filled with soil cement,
Figure 3 is a cross-sectional view of the constructed soil cement pile.
FIG. 4 is a cross-sectional view of drilling a hole according to another embodiment of the present invention;
FIG. 5 is a cross-sectional view showing the replacement of soil cement and muddy water, FIG. 6 is a cross-sectional view of a soil cement pile constructed, and FIG. 7 is a plan view of the construction of a continuous wall according to the present invention. FIG. 8 is a sectional view as well. 1... Skew auger 2... Pier hole 3... Stirring tank 4... Soil cement 5... Transfer pipe 6... Reinforcement material 7... Soil cement pile 8... Rotating shaft 9 ... Stirring rod 1
0...Kneading drum 11...Drilling blade
12...Drilling rod 14...Soil cement continuous wall patent applicant Mitani Seksan Co., Ltd.
Claims (1)
および添加剤と共に攪拌混合して、ソイルセメント化し
、このソイルセメントを前記掘削穴の下部より順次充填
することを特徴としたくい又は連続壁の構築方法 ２ 掘削穴へ鉄筋篭又は鉄骨などの補強材を挿入し、然
る後ソイルセメントを充填することを特徴とした請求項
１記載のくい又は連続壁の構築方法 ３ 掘削穴へソイルセメントを充填し、然る後、鉄筋篭
又は鉄骨などの補強材を挿入することを特徴とした請求
項１記載のくい又は連続壁の構築方法 ４ 掘削穴の掘削進行に伴って生じる掘削土、又はソイ
ルセメントとの置換に伴って生じる泥土、泥水の全部又
は一部に適量のセメントと要すれば添加剤を加え、撹拌
してソイルセメント化し、このソイルセメントを掘削穴
へ充填することを特徴としたくい又は連続壁の構築方法 ５ 掘削土を掘削穴内で泥土化し、この掘削穴内へその
底側から掘削土の一部を用いて予め地上で作ったソイル
セメントを充填し、ソイルセメントの充填により溢出す
る泥水を用いてソイルセメントを作り、これをその掘削
穴に逐次充填することを特徴としたくい又は連続壁の構
築方法 ６ 掘削穴の掘削により生じた泥土を地上でソイルセメ
ント化し、このソイルセメントを掘削穴に戻して硬化さ
せたことを特徴とするソイルセメントくい ７ 掘削穴の掘削により生じた泥土を地上でソイルセメ
ント化し、このソイルセメントを掘削穴に戻して補強材
と一体的に硬化させたことを特徴とするソイルセメント
くい ８ 複数本のくい穴に相当する巾の連続掘削穴の掘削に
より生じた土を地上でソイルセメント化し、このソイル
セメントを掘削穴に戻し、補強材と共に硬化させたこと
を特徴とする連続壁[Claims] 1. The method is characterized in that excavated soil from an excavated hole is taken out from the ground, stirred and mixed with an appropriate amount of cement and additives to form soil cement, and this soil cement is sequentially filled from the bottom of the excavated hole. Method 2 for constructing piles or continuous walls 2. Method 3 for constructing piles or continuous walls according to claim 1, which comprises inserting a reinforcing material such as a rebar basket or steel frame into the excavated hole, and then filling it with soil cement. 4. Method for constructing a pile or continuous wall according to claim 1, characterized in that the soil cement is filled into the excavated hole, and then a reinforcing material such as a reinforcing bar cage or a steel frame is inserted.As the excavation of the excavated hole progresses. Add an appropriate amount of cement and additives if necessary to all or part of the excavated soil or mud or muddy water that is generated as a result of replacement with soil cement, stir to form soil cement, and fill the excavated hole with this soil cement. Method 5 for constructing piles or continuous walls characterized by: Turning excavated soil into mud in an excavated hole, filling the excavated hole from the bottom side with soil cement made in advance on the ground using a part of the excavated soil, A method for constructing piles or continuous walls characterized by making soil cement using muddy water overflowing from filling with soil cement, and sequentially filling the excavated hole with the soil cement.6. Soil cement pile 7, characterized in that it is made into cement and this soil cement is returned to the excavated hole and hardened. The mud produced by excavating the excavated hole is made into soil cement on the ground, and this soil cement is returned to the excavated hole to make a reinforcement material. Soil cement pile 8 characterized in that it is hardened integrally with the soil cement pile produced by excavating a continuous excavation hole with a width equivalent to multiple pile holes is turned into soil cement on the ground, and this soil cement is returned to the excavation hole. , a continuous wall characterized by being hardened together with a reinforcing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63043498A JPH07103550B2 (en) | 1988-02-26 | 1988-02-26 | Pile or continuous wall and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63043498A JPH07103550B2 (en) | 1988-02-26 | 1988-02-26 | Pile or continuous wall and its construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01219212A true JPH01219212A (en) | 1989-09-01 |
| JPH07103550B2 JPH07103550B2 (en) | 1995-11-08 |
Family
ID=12665380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63043498A Expired - Lifetime JPH07103550B2 (en) | 1988-02-26 | 1988-02-26 | Pile or continuous wall and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07103550B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0734453A (en) * | 1993-07-19 | 1995-02-03 | Seiko Kogyo Kk | Recycle of mixture between soil/sand and soliidifying liquid substance |
| JP2003041576A (en) * | 2001-07-31 | 2003-02-13 | Ohbayashi Corp | Composite underground continuous wall and construction method of the wall |
| JP2010106542A (en) * | 2008-10-30 | 2010-05-13 | Railway Technical Res Inst | Construction method for cast-in-place pile, and cast-in-place pile |
| CN106759286A (en) * | 2017-01-13 | 2017-05-31 | 王继忠 | A kind of construction method of pile foundation or curtain wall |
| CN106812149A (en) * | 2017-03-03 | 2017-06-09 | 王继忠 | A kind of construction method of pile foundation |
| CN109750570A (en) * | 2018-12-27 | 2019-05-14 | 广东平润建设工程有限公司 | The construction method on road surface is built on soft foundation |
| CN113445496A (en) * | 2021-06-21 | 2021-09-28 | 广东北方基础建筑有限公司 | Rotary drilling cast-in-place pile and construction process thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51131118A (en) * | 1975-05-12 | 1976-11-15 | Koho Gijutsu Kaihatsu | Method of forming underground wall |
| JPS58185824A (en) * | 1982-04-23 | 1983-10-29 | Ohbayashigumi Ltd | Mud water-solidification work reusing good-quality excavated soil |
| JPS5927022A (en) * | 1982-08-04 | 1984-02-13 | Fujita Corp | Continuous cut-off wall work of cement mortar |
| JPS6140815A (en) * | 1984-07-31 | 1986-02-27 | Hiroyoshi Takasaki | Manufacture of crystalline aluminosilicate zeolite using montmorillonite mineral as raw material |
| JPS62189217A (en) * | 1986-02-15 | 1987-08-19 | Kajima Corp | Sheathing work |
-
1988
- 1988-02-26 JP JP63043498A patent/JPH07103550B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51131118A (en) * | 1975-05-12 | 1976-11-15 | Koho Gijutsu Kaihatsu | Method of forming underground wall |
| JPS58185824A (en) * | 1982-04-23 | 1983-10-29 | Ohbayashigumi Ltd | Mud water-solidification work reusing good-quality excavated soil |
| JPS5927022A (en) * | 1982-08-04 | 1984-02-13 | Fujita Corp | Continuous cut-off wall work of cement mortar |
| JPS6140815A (en) * | 1984-07-31 | 1986-02-27 | Hiroyoshi Takasaki | Manufacture of crystalline aluminosilicate zeolite using montmorillonite mineral as raw material |
| JPS62189217A (en) * | 1986-02-15 | 1987-08-19 | Kajima Corp | Sheathing work |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0734453A (en) * | 1993-07-19 | 1995-02-03 | Seiko Kogyo Kk | Recycle of mixture between soil/sand and soliidifying liquid substance |
| JP2003041576A (en) * | 2001-07-31 | 2003-02-13 | Ohbayashi Corp | Composite underground continuous wall and construction method of the wall |
| JP4576768B2 (en) * | 2001-07-31 | 2010-11-10 | 株式会社大林組 | Composite type underground continuous wall and construction method of the same wall |
| JP2010106542A (en) * | 2008-10-30 | 2010-05-13 | Railway Technical Res Inst | Construction method for cast-in-place pile, and cast-in-place pile |
| CN106759286A (en) * | 2017-01-13 | 2017-05-31 | 王继忠 | A kind of construction method of pile foundation or curtain wall |
| CN106812149A (en) * | 2017-03-03 | 2017-06-09 | 王继忠 | A kind of construction method of pile foundation |
| CN109750570A (en) * | 2018-12-27 | 2019-05-14 | 广东平润建设工程有限公司 | The construction method on road surface is built on soft foundation |
| CN113445496A (en) * | 2021-06-21 | 2021-09-28 | 广东北方基础建筑有限公司 | Rotary drilling cast-in-place pile and construction process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07103550B2 (en) | 1995-11-08 |
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