JP2797144B2 - Side hole embedding method - Google Patents
Side hole embedding methodInfo
- Publication number
- JP2797144B2 JP2797144B2 JP23453290A JP23453290A JP2797144B2 JP 2797144 B2 JP2797144 B2 JP 2797144B2 JP 23453290 A JP23453290 A JP 23453290A JP 23453290 A JP23453290 A JP 23453290A JP 2797144 B2 JP2797144 B2 JP 2797144B2
- Authority
- JP
- Japan
- Prior art keywords
- filling
- partition plate
- hole
- lightweight concrete
- embedding
- 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.)
- Expired - Fee Related
Links
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Description
本発明は、採石跡や防空壕跡による地層の横穴を埋
め、地盤を補強するための横穴の埋込方法に関する。The present invention relates to a method for embedding a lateral hole in a stratum formed by a quarry trace or an air defense shelter to reinforce the ground.
大谷石等の採石跡や防空壕跡等による横穴が存在して
いると、地盤は崩壊の危険があってその安全対策を施す
必要がある。この横穴を埋めるには、作業員が現場の中
に入って、客土による埋め込み作業を長時間を費やして
行っているのが現状である。If there is a horizontal hole due to quarry traces such as Otani stone or air raft shelter, the ground is at risk of collapse and it is necessary to take safety measures. In order to fill this side hole, it is the present situation that a worker enters the site and performs a long time of embedding work using the soil.
【発明が解決しようとする課題】 客土による埋め込み方法においては、埋め込んだ客土
層が圧密化（自然硬化）して土壌が安定するまでに３〜
５年必要であって、その期間内は現場を立入り禁止にす
る必要があるため、コンクリート建造物や道路等の構築
ができないという問題があった。また、埋め込み現場の
中で作業することは常に危険が伴うので、作業員にとっ
ては横穴内での作業に非常な不安がつきまとうと同時
に、客土を運び入れる労力も大変である。 本発明は上記の問題を解決するためになされたもの
で、その目的は客土による埋め込み作業の代わりに、コ
ンクリートポンプを用いて横穴に発泡樹脂粒子と生コン
クリートを混合した軽量コンクリート形成材を圧送し、
生コンクリートを硬化させて横穴を埋め、横穴内に形成
された軽量コンクリートによって地盤の補強ができる横
穴の埋め込み方法を提供することにある。そして、本発
明方法によれば、省力化を達成できて作業を安全に行い
得ることは勿論のこと、埋め込み層の圧密化の期間が必
要でなくなるといった利点がある。In the embedding method using soil, it takes three to three days until the embedded soil layer is compacted (naturally hardened) and the soil is stabilized.
Five years are required, and during that period, the site must be kept off-limits, so that there is a problem that it is impossible to construct a concrete building, a road or the like. In addition, since working in an embedding site is always dangerous, the worker is very anxious about working in the side hole, and at the same time, labor for bringing in the land is also great. The present invention has been made in order to solve the above-mentioned problem, and an object thereof is to pump a lightweight concrete forming material in which foamed resin particles and ready-mixed concrete are mixed into a lateral hole by using a concrete pump instead of embedding work using a soil. And
It is an object of the present invention to provide a method of embedding a side hole, in which the ready-mixed concrete is cured to fill the side hole, and the ground can be reinforced by lightweight concrete formed in the side hole. According to the method of the present invention, not only the labor saving can be achieved and the operation can be performed safely, but also there is an advantage that the period for compacting the buried layer is not required.
上記目的を達成するために、本発明の特徴とする横穴
の埋め込み方法の一つは、地層の横穴に、該横穴を充填
口を有する仕切板で仕切って、入口側とは遮断した充填
空間を形成し、この充填空間に発泡樹脂粒子と生コンク
リートを混合した軽量コンクリート形成材を上記仕切板
の充填口より充填し、生コンクリートを硬化させて横穴
を軽量コンクリートで埋め込むものである。そして、本
発明の特徴とする横穴の埋め込み方法の他の一つは、地
層の横穴の奥部に、該奥部側を充填口を有する仕切板で
仕切って、入口側とは遮断した充填空間を形成し、この
充填空間に発泡樹脂粒子と生コンクリートを混合した軽
量コンクリート形成材を上記仕切板の充填口より充填し
て、該充填空間を埋め込み、次いで、入口側へ向かった
手前部分を充填口を有する仕切板で仕切って入口側とは
遮断した充填空間を形成して、以下、次々に形成される
これらの充填空間に上記軽量コンクリート形成材を仕切
板の充填口より充填する作業を繰り返し、横穴を硬化さ
せた軽量コンクリートで埋め込むものである。In order to achieve the above object, one of the embedding methods of the horizontal hole characterized by the present invention is to form a horizontal hole in the stratum, partition the horizontal hole with a partition plate having a filling port, and fill the filling space isolated from the entrance side. A lightweight concrete forming material obtained by mixing foamed resin particles and ready-mixed concrete is filled in the filling space from a filling port of the partition plate, the ready-mixed concrete is hardened, and the lateral hole is filled with the lightweight concrete. Another method of embedding the lateral hole characterized by the present invention is a filling space in which the inner side is partitioned by a partition plate having a filling port in the inner side of the horizontal hole of the formation, and the inner side is separated from the inlet side. The filling space is filled with a lightweight concrete forming material obtained by mixing foamed resin particles and ready-mixed concrete from the filling port of the partition plate, and the filling space is buried, and then the front part facing the entrance side is filled. Forming a filling space separated from the entrance side by partitioning with a partition plate having a mouth, and thereafter, repeating the work of filling the lightweight concrete forming material into the filling space formed one after another from the filling port of the partition plate. Is to be embedded in lightweight concrete with hardened side holes.
先ず、本発明方法の実施に用いられる軽量コンクリー
トについて説明する。 軽量コンクリート形成材は発泡樹脂粒子と生コンクリ
ートを混合したものであって、発泡樹脂粒子としてはポ
リスチレン、ポリエチレン等の粒径が２〜100mm、密度
が0.008〜0.1g/cm3である独立気泡構造のものが、また
生コンクリートとしては通常のセメント、粗骨材、水等
で作られたものがそれぞれ用いられる。そして、発泡樹
脂粒子と生コンクリートの混合割合は発泡樹脂粒子が0.
1〜10重量部、セメントが100重量部、砂や砂利等の粗骨
材が０〜300重量部、水が適量であって、他に樹脂水性
エマルジョン、硬化促進剤（水ガラス、炭酸ソーダ、モ
ノエタノールアミン等）、消泡剤等を混合してもよい。
また、セメントとしては普通ポルトランドセメント、白
色セメント、早強セメント、超早強セメント、アルミナ
セメント、混合セメント（高炉セメント、シリカセメン
ト、フライアッシュセメント）等の水硬性セメントが用
いられる、 以下に、本発明の実施例を添付図面を参照しながら説
明する。 第１図及び第２図に示すように、地層の横穴１の入口
２側部分を充填口５を有する仕切板（ベニア板や金属板
等）４で仕切って、横穴１を入口２側とは遮断した充填
空間３に形成する。次いで、この充填空間３内に、横穴
１の外に配置されているコンクリートポンプ車11によっ
て、ポルトランドセメント100重量部と水100重量部で作
られた生コンクリートと密度が0.03g/cm3の発泡ポリス
チレン粒子10重量部とを混合した軽量コンクリート形成
材ｃを上記仕切板４の充填口５に接続したホース12によ
り充填し、該軽量コンクリート形成材ｃを硬化させて横
穴１を軽量コンクリートｆにより埋め込むものである。
そして、充填口５よりホース12を取外して埋め込み作業
が終了した後、必要に応じて入口２に擁壁６等を構設
し、その外観上の体裁向上を図るものである。 次に、横穴１が比較的長い場合は、この横穴１を奥部
先端1aより該横穴１の入口２側に向かって適当な間隔
（５〜6m）に順次仕切り、その仕切られた各充填空間に
軽量コンクリート形成材を充填し、横穴１を奥部側から
入口側へ向かって階段的に埋め込んで行くものであっ
て、以下は、その詳細である。 即ち、第３図〜第５図は埋め込み工程を段階的に示す
図であり、先ず、第３図に示すように、横穴１の奥部先
端1aより該横穴１の入口２側に向かって５〜6m手前の部
分に充填口５を設けてある仕切板（第２図参照）４を起
立させて装着し、入口２側とは仕切られた充填空間３′
を形成する。 そして、横穴１の外に配置されているコンクリートポ
ンプ車（図示せず）より延びるホース12を仕切板４の充
填口５に接続し、充填空間３′内に前述した第１図の埋
め込み方法と同様に軽量コンクリート形成材ｃを充填す
る。軽量コンクリート形成材ｃの充填後、ホース12を充
填口５より引き抜き、充填口５を土、板、プラスチック
等で塞ぎ、充填空間３′を充塞した人工層（第４図に符
号f1で示す）を形成する。次いで、第４図に示すよう
に、再び横穴１の入口２側に向かって上記人工層f1の手
前５〜6mの部分に仕切板４を装着して、区画された次の
充填空間３′を形成し、以下、この充填空間３′内へ仕
切板４の充填口５より軽量コンクリート形成材ｃを充填
する作業を行ない、軽量コンクリート形成材ｃによる人
工層（第５図に符号f2で示す）を形成する。 そして、この作業を所要回数繰り返し、第５図に示す
ように横穴１内を硬化させた人工層f1、f2、f3……で埋
め込むものである。 なお、埋め込み作業完了後、横穴１の入口２側の外観
を良くしたいときは、第５図に示すように入口２を擁壁
７で塞ぎ、擁壁７内側の隙間を土砂や採石８で埋める一
方、地表面は土盛りやアスファルトで舗装９する。ま
た、仕切板４は人工層f1、f2、f3……と共に横穴１内に
埋設されるのが作業上有利である。First, the lightweight concrete used for carrying out the method of the present invention will be described. Lightweight concrete forming material be a mixture of raw concrete and foamed resin particles, polystyrene foamed resin particles, the particle size of the polyethylene is 2 to 100 mm, closed cell density of 0.008~0.1g / cm 3 Structure And ready-mixed concrete is made of ordinary cement, coarse aggregate, water or the like. The mixing ratio of foamed resin particles and ready-mixed concrete is 0.
1 to 10 parts by weight, cement is 100 parts by weight, coarse aggregate such as sand and gravel is 0 to 300 parts by weight, water is an appropriate amount, and in addition, a resin aqueous emulsion, a hardening accelerator (water glass, sodium carbonate, Monoethanolamine), an antifoaming agent and the like.
As cement, hydraulic cement such as ordinary Portland cement, white cement, early-strength cement, ultra-high-strength cement, alumina cement, and mixed cement (blast furnace cement, silica cement, fly ash cement) is used. Embodiments of the present invention will be described with reference to the accompanying drawings. As shown in FIGS. 1 and 2, the entrance 2 side portion of the horizontal hole 1 in the formation is partitioned by a partition plate (such as a veneer plate or a metal plate) 4 having a filling port 5, and the horizontal hole 1 is defined as the entrance 2 side. It is formed in the closed filling space 3. Next, in this filling space 3, foam concrete having a density of 0.03 g / cm 3 was mixed with ready-mixed concrete made of 100 parts by weight of Portland cement and 100 parts by weight of water by a concrete pump truck 11 arranged outside the lateral hole 1. A lightweight concrete forming material c mixed with 10 parts by weight of polystyrene particles is filled with a hose 12 connected to the filling port 5 of the partition plate 4, the lightweight concrete forming material c is hardened, and the lateral hole 1 is embedded with the lightweight concrete f. Things.
After the hose 12 is removed from the filling port 5 and the embedding operation is completed, a retaining wall 6 and the like are provided at the inlet 2 as necessary to improve the appearance. Next, when the lateral hole 1 is relatively long, the lateral hole 1 is sequentially partitioned at an appropriate interval (5 to 6 m) from the back end 1a toward the entrance 2 side of the lateral hole 1, and each partitioned filling space is separated. Is filled with a lightweight concrete forming material, and the lateral hole 1 is buried stepwise from the back side to the entrance side, and the details thereof are as follows. 3 to 5 are diagrams showing the embedding process stepwise. First, as shown in FIG. A partition plate (see FIG. 2) 4 having a filling port 5 is provided upright at about 6 m in front of the inlet 2 and is mounted.
To form Then, a hose 12 extending from a concrete pump truck (not shown) disposed outside the lateral hole 1 is connected to the filling port 5 of the partition plate 4, and the filling method shown in FIG. Similarly, the lightweight concrete forming material c is filled. After filling of lightweight concrete forming material c, withdrawal from filling port 5 a hose 12, showing the fill port 5 Saturday, plate, closed with a plastic or the like, an artificial layer (Fig. 4 was being filled with filling space 3 'by symbol f 1 ) Is formed. Then, as shown in FIG. 4, by mounting the partition plate 4 to the portion of the front 5~6m the artificial layer f 1 again toward the inlet 2 side of the lateral hole 1, compartmentalized following filling space 3 ' It is formed and below, this to fill space 3 'within performs tasks from filling port 5 of the partition plate 4 is filled with lightweight concrete form member c, artificial layer through weight concrete form member c (code f 2 in FIG. 5 Shown). This operation is repeated a required number of times to embed the hardened artificial layers f 1 , f 2 , f 3, ... In the lateral hole 1 as shown in FIG. After completion of the embedding work, when it is desired to improve the appearance of the side hole 1 on the entrance 2 side, the entrance 2 is closed with a retaining wall 7 and the gap inside the retaining wall 7 is filled with earth and sand or quarry 8 as shown in FIG. On the other hand, the ground surface is paved 9 with embankment or asphalt. Further, it is advantageous in terms of work that the partition plate 4 is buried in the lateral hole 1 together with the artificial layers f 1 , f 2 , f 3 .
本発明は上記の如くであって、横穴の入口を通して外
側から充填作業ができるため、土砂崩れによる危険性か
ら完全に回避できる。そして、充填材が硬化したものは
軽量コンクリートであるため高い圧縮強度を保持できる
ので、横穴内は非常に強固な地層として構成され、崩壊
し易い地盤を有効に補強できる。また、軽量コンクリー
トはコンクリートと比較して人工的に比較的破壊し易い
ので、その後の掘り起こし作業を行なう上にも有利であ
る。The present invention is as described above, and since the filling operation can be performed from the outside through the entrance of the side hole, the danger due to landslide can be completely avoided. Since the hardened filler is lightweight concrete, it can maintain high compressive strength, so that the inside of the lateral hole is formed as a very strong stratum, and the ground that easily collapses can be effectively reinforced. Moreover, since lightweight concrete is relatively easily broken artificially as compared with concrete, it is advantageous in performing subsequent excavation work.
図面は本発明の実施例を示すもので、第１図は一つの発
明方法の充填作業状態を説明する側断面図、第２図は仕
切板の斜視図、第３図、第４図、第５図は何れも他の一
つの発明方法の充填作業状態を段階的に説明する側断面
図である。 図中、１は横穴、２は入口、3,3′は充填空間、４は仕
切板、５は充填口、ｃは軽量コンクリート形成材、ｆは
軽量コンクリートである。The drawings show an embodiment of the present invention. FIG. 1 is a sectional side view for explaining a filling operation state of one inventive method, FIG. 2 is a perspective view of a partition plate, FIG. 3, FIG. FIG. 5 is a side sectional view for explaining step by step a filling operation state according to another invention method. In the figure, 1 is a lateral hole, 2 is an inlet, 3, 3 'is a filling space, 4 is a partition plate, 5 is a filling port, c is a lightweight concrete forming material, and f is a lightweight concrete.
Claims (2)
切板で仕切って、入口側とは遮断した充填空間を形成
し、この充填空間に発泡樹脂粒子と生コンクリートを混
合した軽量コンクリート形成材を上記仕切板の充填口よ
り充填し、生コンクリートを硬化させて横穴を軽量コン
クリートで埋め込むことを特徴とする横穴の埋め込み方
法。1. A lightweight concrete in which a horizontal space in a stratum is divided by a partition plate having a filling port to form a filling space insulated from an inlet side, and foam resin particles and ready-mixed concrete are mixed in the filling space. A method of embedding a lateral hole, comprising filling a forming material from a filling port of the partition plate, curing the ready-mixed concrete, and embedding the lateral hole with lightweight concrete.
有する仕切板で仕切って、入口側とは遮断した充填空間
を形成し、この充填空間に発泡樹脂粒子と生コンクリー
トを混合した軽量コンクリト形成材を上記仕切板の充填
口より充填して、該充填空間を埋め込み、、次いで入口
側へ向かった手前部分を充填口を有する仕切板で仕切っ
て入口側とは遮断した充填空間を形成して、以下、次々
に形成されるこれらの充填空間に上記軽量コンクリート
形成材を仕切板の充填口より充填する作業を繰り返し、
横穴を硬化させた軽量コンクリートで埋め込むことを特
徴とする横穴の埋め込み方法。2. A filling space, which is separated from the entrance by a partition plate having a filling port at the inner side of the horizontal hole in the formation, and is separated from the inlet side. Was filled from the filling port of the above-mentioned partition plate to fill the filling space, and then the front part toward the inlet side was partitioned by the partition plate having the filling port and was blocked from the inlet side. Forming the filling space, and thereafter, repeat the operation of filling the lightweight concrete forming material into the filling space formed one after another from the filling port of the partition plate,
A method of embedding a side hole, characterized by embedding the side hole with hardened lightweight concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23453290A JP2797144B2 (en) | 1990-09-06 | 1990-09-06 | Side hole embedding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23453290A JP2797144B2 (en) | 1990-09-06 | 1990-09-06 | Side hole embedding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04115010A JPH04115010A (en) | 1992-04-15 |
| JP2797144B2 true JP2797144B2 (en) | 1998-09-17 |
Family
ID=16972506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23453290A Expired - Fee Related JP2797144B2 (en) | 1990-09-06 | 1990-09-06 | Side hole embedding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2797144B2 (en) |
-
1990
- 1990-09-06 JP JP23453290A patent/JP2797144B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04115010A (en) | 1992-04-15 |
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