JPH05106205A - Temporarily backfilling construction, and temporarily backfilling material to be used for its construction - Google Patents
Temporarily backfilling construction, and temporarily backfilling material to be used for its constructionInfo
- Publication number
- JPH05106205A JPH05106205A JP14213991A JP14213991A JPH05106205A JP H05106205 A JPH05106205 A JP H05106205A JP 14213991 A JP14213991 A JP 14213991A JP 14213991 A JP14213991 A JP 14213991A JP H05106205 A JPH05106205 A JP H05106205A
- Authority
- JP
- Japan
- Prior art keywords
- bag body
- temporary
- backfilling
- earth
- temporarily
- 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 55
- 238000010276 construction Methods 0.000 title description 3
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 16
- 239000000057 synthetic resin Substances 0.000 claims abstract description 16
- 239000004576 sand Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 abstract 2
- 241000282414 Homo sapiens Species 0.000 abstract 1
- 238000005056 compaction Methods 0.000 abstract 1
- 239000006260 foam Substances 0.000 abstract 1
- 238000009412 basement excavation Methods 0.000 description 18
- 239000010426 asphalt Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920006328 Styrofoam Polymers 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000008261 styrofoam Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Road Paving Structures (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、地中に埋設されたガス
などを導く管の埋設工事などに関連して実施される仮埋
戻工法とそれに用いる仮埋戻用資材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary backfilling method and a temporary backfilling material used for the temporary backfilling method, which is carried out in connection with the burying work of pipes for guiding gas buried in the ground.
【０００２】[0002]
【従来の技術】このようなガスなどを輸送する地中埋設
管の埋設工事では、道路を掘削し、その管末部を、一
旦、土砂で埋戻し、後日、その個所を再び掘削する必要
がある。2. Description of the Related Art In the burial work for underground pipes for transporting such gases, it is necessary to excavate roads, backfill the ends of the pipes once with earth and sand, and excavate the parts again at a later date. is there.
【０００３】典型的な先行技術は、図９に示されてい
る。車道には、管２１が埋設されており、その工事のた
めに、立坑２２を掘削し、管２１を露出する。この立坑
２２を埋戻すにあたっては、管１の下部に砂が収納され
た砂袋２３を配置し、埋戻用資材２４を敷き詰め、その
上に鋼板２５を乗せてその鋼板２５を水平とし、さらに
その上に発泡合成樹脂製の角材６を敷き詰め、最後に砕
石２７を入れて、アスファルト層２８によって仮舗装を
行っている。仮埋戻用資材２４は、土砂を通さない可撓
性を有する袋体内に、剛性の仮埋素材２９が一杯に充填
されて収納されている。この仮埋素材２９は、球状に形
成される。A typical prior art is shown in FIG. A pipe 21 is buried in the roadway. For the construction, a shaft 22 is excavated to expose the pipe 21. In backfilling the shaft 22, a sand bag 23 containing sand is placed under the pipe 1, a backfill material 24 is laid, and a steel plate 25 is placed on the sandbag 25 to make the steel plate 25 horizontal. A square bar 6 made of foamed synthetic resin is laid over it, crushed stones 27 are put in the end, and the asphalt layer 28 is used for temporary paving. The temporary backfill material 24 is filled with a rigid temporary backfill material 29 and stored in a flexible bag that does not allow the passage of earth and sand. This temporary embedding material 29 is formed into a spherical shape.
【０００４】もしも鋼板２５が介在されないとすると、
仮埋戻用資材２４の上部を水平に平坦に保つことは困難
であり、角材２６が傾斜してしまい、したがって支持力
に不均一を生じ車道の路面に不陸を生ずる恐れがある。If the steel plate 25 is not interposed,
It is difficult to keep the upper portion of the temporary backfilling material 24 horizontal and flat, and the square members 26 are inclined, so that the supporting force becomes uneven, and the road surface of the roadway may be uneven.
【０００５】[0005]
【発明が解決しようとする課題】このような図９に示さ
れる先行技術では、明らかに作業が面倒であり、時間が
かかる。In such a prior art shown in FIG. 9, the work is obviously troublesome and time consuming.
【０００６】本発明の目的は、仮埋戻し作業を容易に行
うことができ、しかもその埋戻された立坑の上部に人ま
たは自動車などが通過する際においても充分な強度を有
する仮埋戻工法とそれに用いる仮埋戻用資材を提供する
ことである。An object of the present invention is to carry out a temporary backfilling operation easily, and further, a temporary backfilling method having sufficient strength even when a person, an automobile or the like passes above the backfilled shaft. And to provide temporary backfill materials used for it.
【０００７】[0007]
【課題を解決するための手段】本発明は、合成樹脂製網
から成りかつ可撓性を有する袋体内に、発泡された合成
樹脂から成る多数の塊状体を、少な目に収納して構成さ
れる仮埋戻用資材を、掘削孔に埋め、その仮埋戻用資材
の上に、袋体の網目から容易に袋体内に入り込む大きさ
を有する土砂を乗せることを特徴とする仮埋戻工法であ
る。According to the present invention, a large number of agglomerates made of expanded synthetic resin are contained in a flexible bag body made of a synthetic resin net in a small amount. The temporary backfilling method is characterized in that the temporary backfilling material is filled in a drilling hole, and the temporary backfilling material is placed on the temporary backfilling material so that the sand is sized to easily enter the bag through the mesh of the bag. is there.
【０００８】また本発明は、合成樹脂製網から成りかつ
可撓性を有する袋体内に、発泡された合成樹脂から成る
多数の塊状体を、少な目に収納して構成されることを特
徴とする仮埋戻用資材である。Further, the present invention is characterized in that a large number of lumps made of foamed synthetic resin are contained in a flexible bag body made of a synthetic resin net in a small amount. It is a temporary backfill material.
【０００９】[0009]
【作用】本発明に従えば、仮埋戻用資材は、合成樹脂製
網から成り、可撓性を有する袋体を有し、この袋体内に
は発泡された合成樹脂から成る多数の塊状体が、少な目
に収納される。このように袋体内に少な目に多数の塊状
体が収納されるので、本件仮埋戻用資材の形状の変化が
容易に可能であり、埋戻されるべき掘削孔の内壁の形
状、またその掘削孔に露出している管などの形状に適合
して変形することができ、掘削孔内に強度を低下させる
ような空間を生じることなく、掘削孔を埋めることがで
きる。According to the present invention, the temporary backfill material is made of a synthetic resin net and has a flexible bag body, and a large number of lumps made of foamed synthetic resin are provided in the bag body. However, it is stored a little. In this way, since a large number of lumps are stored in the bag in a small amount, it is possible to easily change the shape of the temporary backfill material, the shape of the inner wall of the borehole to be backfilled, and the borehole. It can be deformed in conformity with the shape of the pipe exposed to the outside, and the drill hole can be filled without creating a space in the drill hole that reduces the strength.
【００１０】掘削孔に、上述の埋戻用資材を埋め、その
上に、土砂を乗せ、この土砂の大きさは、仮埋戻用資材
の袋体の網目から袋体内に容易に入り込む値に選ばれて
おり、したがってその土砂は袋体内に入り込んで多数の
塊状体の相互の空間を塞ぐ。これによって土砂の上で、
たとえばランマなどによって叩くことによって、充分な
強度で締固めることができる。こうして人および自動車
などの通過時においても、充分な強度で支持力を発揮す
ることができ、本発明はたとえば車道に掘削された掘削
孔に関連してもまた実施することができる。The above-mentioned backfill material is buried in the excavation hole, and the earth and sand are placed on it. The size of this earth and sand is set to a value that easily enters the bag through the mesh of the bag of the temporary backfill material. It has been chosen, and therefore its earth and sand enter the bag to block the mutual space of many masses. By this, on the sand,
For example, it can be compacted with sufficient strength by hitting it with a rammer or the like. In this way, it is possible to exert a supporting force with sufficient strength even when passing a person or an automobile, and the present invention can also be carried out in connection with, for example, a drill hole drilled on a roadway.
【００１１】さらにまた本発明に従えば、仮埋戻用資材
および土砂が投入された掘削孔の掘削を行うにあって
は、土砂の上から、たとえばバックホーまたはパワーシ
ョベルなどによって仮埋戻用資材の袋体を引掛け、その
仮埋戻用資材を掘削孔から容易に引上げることができ
る。これによって掘削孔を再掘削することが容易であ
る。Further, according to the present invention, in excavating the temporary backfill material and the excavation hole into which the earth and sand have been put, the temporary backfill material is placed on the earth and sand by, for example, a backhoe or a power shovel. It is possible to easily pull up the temporary backfill material from the excavation hole. This makes it easy to re-drill the drill hole.
【００１２】[0012]
【実施例】図１は、本発明の一実施例の仮埋戻用資材１
の模式的に描いた正面図である。袋体２内には、多数の
塊状体３が少な目に収納される。塊状体３は、この実施
例では球状であり、袋体２内で塊状体３が占める体積Ｖ
１は、相互に当接した塊状体３の相互の空隙の体積を除
いて、袋体２の容積の約６０〜７０％であり、袋体２の
残余の容積Ｖ２は、袋体２の容積の約３０〜４０％であ
り、したがって自然状態では、図２に示されるように袋
体２は、いわばダブダブの状態となっており、そのため
袋体２の形状は任意の形状とすることが容易であり、そ
のため掘削孔の内壁に適合し、また掘削孔に露出してい
る管などの形状にほぼぴったりと当接して適合すること
が容易に可能であり、不所望な大きな空間を生じること
がない。EXAMPLE FIG. 1 shows a temporary backfill material 1 according to an example of the present invention.
It is the front view which drew typically. A large number of lumps 3 are stored in the bag body 2 in a small amount. The lump 3 has a spherical shape in this embodiment, and the volume V occupied by the lump 3 in the bag 2 is V.
1 is about 60 to 70% of the volume of the bag body 2 excluding the volume of the mutual voids of the lumps 3 that are in contact with each other, and the remaining volume V2 of the bag body 2 is the volume of the bag body 2. Therefore, in the natural state, the bag body 2 is in a so-called dubbed state as shown in FIG. 2, so that the shape of the bag body 2 can be easily made arbitrary. Therefore, it is easily possible to fit the inner wall of the drill hole and to fit the shape of the pipe exposed in the drill hole almost exactly, resulting in an undesirably large space. Absent.
【００１３】図３は、袋２内に多数の塊状体３が収納さ
れた状態を示す一部の拡大正面図である。この袋体２で
は、図４に展開して示されるように、撚り合わせた糸状
とされたナイロン製の素線４が、行列状に編んで、網を
構成し、その素線４の外径ｄ１は、たとえば１．５ｍｍ
φである。この網目５の縦ｄ２および横ｄ３は、たとえ
ば２５ｍｍである。素線４は、上述のようにナイロン製
であってもよいけれども、ポリプロピレン製であっても
よく、その他の合成樹脂製であってもよい。こうして袋
体２は可撓性を有する。FIG. 3 is a partially enlarged front view showing a state where a large number of lumps 3 are accommodated in the bag 2. In this bag body 2, as shown in FIG. 4 in an unfolded state, the strand-shaped nylon strands 4 are knitted in a matrix to form a net, and the outer diameter of the strands 4 d1 is, for example, 1.5 mm
φ. The length d2 and width d3 of this mesh 5 are, for example, 25 mm. Although the strand 4 may be made of nylon as described above, it may be made of polypropylene or other synthetic resin. Thus, the bag body 2 has flexibility.
【００１４】塊状体５の外径は、５０ｍｍφであり、こ
のような塊状体５が前述のように袋体２内に多数個、し
かも少な目に収納される。The outer diameter of the lumps 5 is 50 mmφ, and a large number of such lumps 5 are accommodated in the bag body 2 as described above, and the number is small.
【００１５】この塊状体３は、発泡された合成樹脂から
成り、たとえば発泡スチロール製であり、その発泡倍率
は１３〜１５倍に選ばれる。塊状体３は、単泡性であ
り、非透水性を有し、したがって軽量であり、水が浸み
込まない。したがって塊状体が雨水などで濡れたとして
も、水による重量増大がなく、運搬および掘削孔の埋戻
し作業が容易である。このような球状の塊状体３の本件
発明者による圧縮応力に対する圧縮量の実験結果は図５
に示されている。たとえば人が本件仮埋戻用資材１上に
乗って通過する際に、塊状体３に約５ｋｇ／ｃｍ2の圧
縮応力が作用しても、多数の塊状体３の圧縮量はごく僅
かであり、殆んど、変形しないことが確認された。The lump 3 is made of foamed synthetic resin and is made of, for example, styrofoam, and its expansion ratio is selected to be 13 to 15 times. The lumps 3 are closed-celled, have water impermeable properties, and are therefore lightweight, and are impermeable to water. Therefore, even if the lump gets wet with rainwater or the like, the weight of the lump does not increase due to water, and the transportation and backfilling of the drill hole are easy. FIG. 5 shows an experimental result of the amount of compression of the spherical massive body 3 with respect to the compressive stress by the present inventor.
Is shown in. For example, even when a compressive stress of about 5 kg / cm 2 is applied to the lumps 3 when a person rides on the temporary backfilling material 1 and passes by, the amount of compression of many lumps 3 is very small. It was confirmed that almost no deformation occurred.
【００１６】図６は、本発明の一実施例の仮埋戻状態を
示す断面図である。車道６には、掘削孔７が掘削され、
この掘削孔７にはガスなどを輸送する地中埋設管８が露
出する。こうして掘削孔７に露出した管８の補修などを
行うことができる。この掘削孔７を仮埋めするにあたっ
ては、管８の下部に砂袋９を配置し、掘削孔７の内壁お
よび管８の外周面に沿って本件仮埋戻用資材１を配置す
る。この資材１は、掘削孔７の内壁に沿って変形し、ま
た管８の外周面に沿って変形し、したがって圧縮力に対
する強度を低下させるような不所望な大きな空間が生じ
ることが防がれる。この仮埋戻用資材１上には、薄い層
状に土砂１０が乗せられる。FIG. 6 is a sectional view showing a temporary backfilling state according to an embodiment of the present invention. An excavation hole 7 is excavated in the road 6,
An underground buried pipe 8 that transports gas and the like is exposed in the excavation hole 7. In this way, the pipe 8 exposed in the excavation hole 7 can be repaired. In temporarily filling the excavation hole 7, a sand bag 9 is placed under the pipe 8, and the temporary backfill material 1 is placed along the inner wall of the excavation hole 7 and the outer peripheral surface of the pipe 8. This material 1 is prevented from being deformed along the inner wall of the drilled hole 7 and also deformed along the outer peripheral surface of the pipe 8, and thus an undesired large space which reduces the strength against the compressive force is prevented. .. The earth and sand 10 are placed in a thin layer on the temporary backfill material 1.
【００１７】この土砂１０は、袋体２の網目５から容易
に袋体２内に入り込む大きさを有し、たとえば２０ｍｍ
φ未満の中礫を含む土砂であってもよい。さらにこの土
砂１０には、網目５から袋体２内に容易に入り込むこと
ができるたとえば７５ｍｍφ未満の粗礫でまた５．０ｍ
ｍφ未満の細礫、さらには２．０ｍｍφ未満の砂が含ま
れていてもよい。こうして網目５から入り込んだ土砂
は、図３に示されるように相互に隣接して当接した複数
の塊状体３相互の空隙１１に入り込み、塊状体３が相互
に変位することが防がれ、土砂１０上をランマなどで叩
くことによって、充分に締固まって大きな支持力を得る
ことができる。The earth and sand 10 has such a size that it can easily enter the bag body 2 through the mesh 5 of the bag body 2, for example, 20 mm.
It may be earth and sand containing gravel less than φ. Further, the earth and sand 10 can be easily penetrated into the bag body 2 through the mesh 5, for example, gravel of less than 75 mmφ and 5.0 m.
Fine gravel of less than mφ and further sand of less than 2.0 mmφ may be included. In this way, the earth and sand that have entered from the mesh 5 enter the voids 11 between the plurality of agglomerates 3 that are adjacent to each other and abut each other as shown in FIG. 3, preventing displacement of the agglomerates 3 from each other. By hitting the soil 10 with a rammer or the like, it is possible to sufficiently compact and obtain a large supporting force.
【００１８】さらに土砂１０の上には、前述の仮埋戻用
資材１と同様な構成を有する仮埋戻用資材１ａ，１ｂ
が、土砂１０ａ，１０ｂを介して積層され、最上部に
は、アスファルトの層１２が形成されて、仮舗装され
る。Further, on the earth and sand 10, the temporary backfill materials 1a and 1b having the same structure as the above-mentioned temporary backfill material 1 are provided.
However, the asphalt layer 12 is formed on the uppermost portion of the soil 10a and 10b, and is temporarily paved.
【００１９】図７は、前述の図６に示されるようにして
埋められた掘削孔７を、再び掘削するときの状態を示し
ている。掘削孔７のアスファルト層１２を除去し、バッ
クホーまたはパワーショベルなどのバケット１３によっ
て土砂１０ｂおよびその下にある仮埋戻用資材１ｂを掘
削し、そのバケット１３の爪１４によって仮埋戻用資材
１ｂの袋体を引掛ける。袋体は前述のように網目５を有
しているので、爪１４によって引掛けられ、容易に上昇
されることができる。FIG. 7 shows a state when the excavation hole 7 filled as shown in FIG. 6 is excavated again. The asphalt layer 12 in the excavation hole 7 is removed, the earth and sand 10b and the temporary backfill material 1b thereunder are excavated by a bucket 13 such as a backhoe or a power shovel, and the temporary backfill material 1b is claw 14 of the bucket 13. Hook the bag. Since the bag body has the mesh 5 as described above, it can be hooked by the claws 14 and easily raised.
【００２０】埋戻用資材１の網２と仮埋戻用資材１ａの
網２ａとは、可撓性の紐１５によって連結されており、
また袋体２ａと仮埋戻用資材１ｂの袋体２ｂとは、可撓
性の紐１７によって連結されている。したがって仮埋戻
用資材１ｂを上昇することによって、紐１７ともに仮埋
戻用資材１ａが上昇し、さらに最下部の仮埋戻用資材１
が上昇し、こうして各資材１，１ａ，１ｂを掘削孔７か
ら取出して、掘削孔７を開くことができる。土砂１０，
１０ａは比較的少量であり、掘削孔７に残存していて
も、管８の補修に支障をきたすことはない。最上部の土
砂１０ｂは、バケット１３によって掘削孔７の外に排出
することができる。The net 2 of the backfill material 1 and the net 2a of the temporary backfill material 1a are connected by a flexible cord 15.
The bag body 2a and the bag body 2b of the temporary backfill material 1b are connected by a flexible string 17. Therefore, when the temporary backfill material 1b is raised, the temporary backfill material 1a is raised together with the string 17, and the lowermost temporary backfill material 1a is further raised.
Rises, and thus the materials 1, 1a, 1b can be taken out from the excavation hole 7 to open the excavation hole 7. Earth and sand 10,
The amount of 10a is relatively small, and even if it remains in the excavation hole 7, it does not hinder the repair of the pipe 8. The uppermost earth and sand 10b can be discharged to the outside of the excavation hole 7 by the bucket 13.
【００２１】図７の実施例において、バケット１３を用
いて仮埋戻用資材１ｂを引掛けて持上げる際に、その資
材１ｂの袋体が破損するおそれがあるけれども、そのよ
うに破損しても、袋体が網状であるので、素線を金属細
線などを用いて容易に補修することができる。In the embodiment of FIG. 7, when the temporary backfilling material 1b is hooked and lifted by using the bucket 13, the bag body of the material 1b may be damaged. However, since the bag body has a mesh shape, the element wire can be easily repaired by using a thin metal wire or the like.
【００２２】図８は、本発明の他の実施例の断面図であ
る。この実施例は前述の実施例に類似し、対応する部分
には同一の参照符を付す。この実施例では、掘削孔７に
は単一の比較的大きな仮埋戻用資材１８が投入されてそ
の掘削孔７が埋められる。仮埋戻用資材１８は、前述の
仮埋戻用資材１と同様な構成を有する。この仮埋戻用資
材１８上には土砂１０ｂが乗せられ、この土砂１０ｂに
よって前述のように資材１８内の多数の塊状体相互の空
隙が埋められ、ランマなどによって叩くことによって、
充分に締固めて、路上の支持力を得ることができる。FIG. 8 is a sectional view of another embodiment of the present invention. This embodiment is similar to the previous embodiment, and the corresponding parts bear the same reference numerals. In this embodiment, the excavation hole 7 is filled with a single relatively large material 18 for temporary backfilling. The temporary backfill material 18 has the same configuration as the temporary backfill material 1 described above. The earth and sand 10b is placed on the material 18 for temporary backfilling, and the earth and sand 10b fills the voids between the many lumps in the material 18 as described above, and by hitting with a rammer or the like,
It can be sufficiently compacted to obtain road support.
【００２３】塊状体３は前述の実施例では球状であった
けれども、本発明の他の実施例として、その他の形状、
たとえば立方体、直方体などであってもよい。Although the lumps 3 were spherical in the above-mentioned embodiment, other shapes, such as other shapes, can be used as another embodiment of the present invention.
For example, it may be a cube or a rectangular parallelepiped.
【００２４】[0024]
【発明の効果】以上のように本発明によれば、仮埋戻用
資材は、合成樹脂製網から成る可撓性袋体内に、多数の
塊状体が少な目に収納されており、この塊状体は軽量化
のために発泡された合成樹脂から成り、したがって掘削
孔内の内壁の形状およびその掘削孔内に露出している管
などの形状に適合して、大きな空間を生じることなく、
掘削孔を埋めることができる。As described above, according to the present invention, the temporary backfill material has a large number of agglomerates stored in a flexible bag made of a synthetic resin net, and the agglomerates are slightly contained. Is made of foamed synthetic resin for weight reduction, and therefore conforms to the shape of the inner wall in the drill hole and the shape of the pipe exposed in the drill hole without creating a large space,
Drill holes can be filled.
【００２５】さらにこの仮埋戻用資材の上に土砂を乗
せ、この土砂の大きさは、袋体の網目から容易に袋体内
に入り込むことができる値を有しているので、その土砂
が塊状体相互の空間を塞ぎ、これによって人だけでなく
自動車の通過時においても、充分に締固まる支持力が得
られ、車道などにおいても、本発明を実施することがで
きるようになる。Further, earth and sand are placed on the material for temporary backfilling, and the size of the earth and sand has such a value that it can easily enter the bag body through the mesh of the bag body. The space between the bodies is closed, so that not only a person but also a passing force of an automobile can be sufficiently compacted, and the present invention can be applied to a roadway or the like.
【００２６】また掘削孔を再び掘削するにあたっては、
バックホーまたはパワーショベルなどによって仮埋戻用
資材の袋体を引掛けて持上げることによって、その掘削
孔を容易に再掘削することが可能である。When re-drilling the drill hole,
It is possible to easily re-drill the excavation hole by hooking and lifting the bag body of the temporary backfill material with a backhoe or a power shovel.
【図１】本発明の一実施例の仮埋戻用資材１の模式化し
て示す正面図である。FIG. 1 is a schematic front view showing a temporary backfill material 1 according to an embodiment of the present invention.
【図２】図１に示される仮埋戻用資材１をたとえば平坦
な床上に置いたときの状態を示す正面図である。FIG. 2 is a front view showing a state in which the temporary backfill material 1 shown in FIG. 1 is placed, for example, on a flat floor.
【図３】仮埋戻用資材１の一部の拡大した正面図であ
る。FIG. 3 is an enlarged front view of a part of the temporary backfill material 1.
【図４】仮埋戻用資材１の網２の一部の展開した正面図
である。FIG. 4 is a developed front view of a part of the net 2 of the temporary backfill material 1.
【図５】塊状体３の特性を示すグラフである。FIG. 5 is a graph showing characteristics of the lump 3.
【図６】本発明の一実施例の掘削孔７を埋めた状態を示
す断面図である。FIG. 6 is a cross-sectional view showing a state where the excavation hole 7 of one embodiment of the present invention is filled.
【図７】図６に示される実施例の掘削孔７をバケット１
３を用いて開くときの状態を示す断面図である。FIG. 7 is a diagram showing a case where the drill hole 7 of the embodiment shown in FIG.
It is sectional drawing which shows the state at the time of using 3 and opening.
【図８】本発明の他の実施例の掘削孔７を埋めた状態を
示す断面図である。FIG. 8 is a cross-sectional view showing a state in which the excavation hole 7 of another embodiment of the present invention is filled.
【図９】先行技術の断面図である。FIG. 9 is a cross-sectional view of the prior art.
１，１ａ，１ｂ，１８ 仮埋戻用資材 ２，２ａ，２ｂ 袋体 ３ 塊状体 ７ 掘削孔 １０，１０ａ，１０ｂ 土砂 １２ アスファルト層 １３ バケット 1, 1a, 1b, 18 Temporary backfill material 2, 2a, 2b Bag body 3 Aggregate body 7 Drilling hole 10, 10a, 10b Sediment 12 Asphalt layer 13 Bucket
───────────────────────────────────────────────────── フロントページの続き (72)発明者 六波羅 哲雄 大阪市西区南堀江４丁目２番５号 十川ゴ ム株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsuo Rokura 4-2-5 Minamihorie, Nishi-ku, Osaka City Togawa Gom Co., Ltd.
Claims (2)
る袋体内に、発泡された合成樹脂から成る多数の塊状体
を、少な目に収納して構成される仮埋戻用資材を、掘削
孔に埋め、 その仮埋戻用資材の上に、袋体の網目から容易に袋体内
に入り込む大きさを有する土砂を乗せることを特徴とす
る仮埋戻工法。1. A material for temporary backfilling, which is formed by accommodating a large number of lumps made of foamed synthetic resin in a flexible bag made of a synthetic resin net, and excavating the material. A temporary backfilling method, which comprises filling the holes and placing a piece of earth and sand that is large enough to easily enter the bag through the mesh of the bag on the temporary backfilling material.
る袋体内に、発泡された合成樹脂から成る多数の塊状体
を、少な目に収納して構成されることを特徴とする仮埋
戻用資材。2. Temporary backfilling characterized in that a large number of lumps made of foamed synthetic resin are contained in a flexible bag body made of a synthetic resin net in a small amount. Materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14213991A JP2920177B2 (en) | 1991-06-13 | 1991-06-13 | Temporary backfill method and temporary backfill materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14213991A JP2920177B2 (en) | 1991-06-13 | 1991-06-13 | Temporary backfill method and temporary backfill materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05106205A true JPH05106205A (en) | 1993-04-27 |
| JP2920177B2 JP2920177B2 (en) | 1999-07-19 |
Family
ID=15308274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14213991A Expired - Fee Related JP2920177B2 (en) | 1991-06-13 | 1991-06-13 | Temporary backfill method and temporary backfill materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2920177B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011220062A (en) * | 2010-04-14 | 2011-11-04 | Yazaki Corp | Gravel and sandbag |
| JP2012136862A (en) * | 2010-12-27 | 2012-07-19 | Meiwa Industries Ltd | Installation method of temporary pipe |
-
1991
- 1991-06-13 JP JP14213991A patent/JP2920177B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011220062A (en) * | 2010-04-14 | 2011-11-04 | Yazaki Corp | Gravel and sandbag |
| JP2012136862A (en) * | 2010-12-27 | 2012-07-19 | Meiwa Industries Ltd | Installation method of temporary pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2920177B2 (en) | 1999-07-19 |
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