JPS648133B2 - - Google Patents
Info
- Publication number
- JPS648133B2 JPS648133B2 JP58145768A JP14576883A JPS648133B2 JP S648133 B2 JPS648133 B2 JP S648133B2 JP 58145768 A JP58145768 A JP 58145768A JP 14576883 A JP14576883 A JP 14576883A JP S648133 B2 JPS648133 B2 JP S648133B2
- Authority
- JP
- Japan
- Prior art keywords
- sand
- supply hopper
- hopper
- casing
- arch action
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
- E02D3/106—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains by forming sand drains containing only loose aggregates
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Description
【発明の詳細な説明】
本発明は砂供給ホツパーのアーチアクシヨン防
止方法及び装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for preventing arch action in a sand supply hopper.
従来、海底等の軟弱地盤を改良する工法とし
て、サンドドレーン工法、サンドコンパクシヨン
工法および水中パツクドレーン工法などが採用さ
れている。これらの工法には材料として砂が用い
られているが、この砂の状態は湿潤状態にある。 Conventionally, the sand drain method, sand compaction method, underwater pack drain method, etc. have been adopted as construction methods for improving soft ground such as the seabed. These construction methods use sand as a material, but this sand is in a wet state.
このような湿潤状態の砂を、砂供給ホツパー内
に投入し、そしてその投入口から落下させる際に
は、ホツパーの上部で砂が閉塞架橋現象、即ち、
アーチアクシヨンを起こし、砂がその投下口に落
下しないという問題が発生し、連続的に砂を供給
できず、例えば良好な砂柱が形成されないという
ことになる。 When such wet sand is introduced into the sand supply hopper and allowed to fall from the inlet, the sand at the top of the hopper undergoes a blockage and crosslinking phenomenon, that is,
A problem arises in that arch action occurs and sand does not fall into the inlet, and sand cannot be continuously supplied, resulting in, for example, not being able to form a good sand column.
そこで本発明は、前記従来の問題点を解消し、
湿潤状態の砂を供給する砂供給ホツパー内におけ
るアーチアクシヨンの防止をはかりうるその防止
方法と、その防止装置を提供することを目的とし
てなされたものである。 Therefore, the present invention solves the above-mentioned conventional problems,
The object of this invention is to provide a method and device for preventing arch action in a sand supply hopper that supplies wet sand.
即ち、本発明のアーチアクシヨン防止方法は、
砂供給ホツパー内に、骨組からなる中空回転体を
設けて、その中空回転体を回転させながら砂を供
給することを特徴としたものであり、その防止装
置は、砂供給ホツパー内に、骨組からなる中空回
転体を設けることにより構成される。 That is, the arch action prevention method of the present invention includes:
The sand supply hopper is provided with a hollow rotary body made of a skeleton, and the sand is supplied while rotating the hollow rotary body. It is constructed by providing a hollow rotating body.
以下図面を参照して本発明の一実施例を説明す
るが、第１図は本発明のアーチアクシヨン防止装
置を適用した砂供給ホツパーを設けた砂柱形成装
置の全体配置側面図、第２図は第１図の砂供給ホ
ツパー内の中空回転体の斜視図である。 An embodiment of the present invention will be described below with reference to the drawings. Fig. 1 is a side view of the overall arrangement of a sand column forming device equipped with a sand supply hopper to which the arch action prevention device of the present invention is applied; 1 is a perspective view of the hollow rotating body in the sand supply hopper of FIG. 1; FIG.
まず、第１図の砂柱形成装置では、改良しよう
とする海底の軟弱地盤１内にケーシング２を打ち
込んだ状態でケーシング２内に水Ｗが存在する。
このケーシング２内に有底の砂袋３を砂袋カセツ
ト４から挿入しておき、砂供給ホツパー５、ベル
トコンベヤ６、シユート７を経由して供給された
砂Ｓを、供給水調整バルブ８を有する供給水管９
から供給される供給水Ｗと共にホツパー１０を介
して砂袋３内に導入するものである。 First, in the sand column forming apparatus shown in FIG. 1, water W exists within the casing 2 in a state where the casing 2 is driven into the soft ground 1 of the seabed to be improved.
A sand bag 3 with a bottom is inserted into the casing 2 from a sand bag cassette 4, and the sand S supplied via the sand supply hopper 5, belt conveyor 6, and chute 7 is fed through the supply water adjustment valve 8. Supply water pipe with 9
It is introduced into the sand bag 3 via the hopper 10 together with the supply water W supplied from the sand bag 3.
上記のごとくホツパー１０から供給水Ｗを含ん
だ湿潤な砂Ｓを導入された砂袋３は、ケーシング
２の上部に設けたガイド１１からケーシング２内
に水中パツクＰとなり降下するが、砂袋３の下方
のケーシング２内にあらかじめ満されている水Ｗ
は、排出水調整バルブ１２を有する排水管１３を
介して徐々にケーシング２外に排出され、それに
応じて水中パツクＰが砂柱となつてケーシング２
内を降下する。 As described above, the sand bag 3 into which the wet sand S containing the supply water W is introduced from the hopper 10 descends into the casing 2 from the guide 11 provided at the upper part of the casing 2 as an underwater pack P, but the sand bag 3 The water W pre-filled in the casing 2 below the
is gradually discharged out of the casing 2 through a drain pipe 13 having a discharge water adjustment valve 12, and the underwater pack P turns into a sand column and drains out of the casing 2.
descend within.
なお、第１図の１４は分離水受けで、１５は分
離水排出口である。 In addition, 14 in FIG. 1 is a separated water receiver, and 15 is a separated water outlet.
以上のように、砂Ｓを供給する砂供給ホツパー
５は、その下部の投入口にベルトコンベヤ６を設
けているが、本実施例ではこの砂供給ホツパー５
内に第２図に示すような骨組のみからなり、回転
軸１８を有する円柱状の中空回転体１７を２個設
けており、これら中空回転体１７を第２図の矢印
Ｒで示すごとく、それぞれ反対方向に回転させて
いる。 As described above, the sand supply hopper 5 that supplies sand S is provided with the belt conveyor 6 at its lower input port, but in this embodiment, the sand supply hopper 5
Two cylindrical hollow rotating bodies 17 each having a rotating shaft 18 and consisting of only a frame as shown in FIG. It's rotating in the opposite direction.
このような構成からなる本発明の砂供給ホツパ
ー５を設ければ、前述のアーチアクシヨン現象を
これら中空回転体１７を回転することで切りくず
すことになり、特に回転体を骨組からなる中空回
転体としたため、架橋状態の砂を切れ味良く切り
くずすことができ、したがつて、湿潤な砂Ｓでも
容易に切りくずすことができ、砂をスムースにベ
ルトコンベヤ６に送りこむことができ、砂袋３内
に確実に、かつ連続した砂柱の水中パツクＰを形
成することができる。 If the sand supply hopper 5 of the present invention having such a configuration is provided, the above-mentioned arch action phenomenon can be eliminated by rotating these hollow rotary bodies 17. Because it is a body, cross-linked sand can be cut into pieces with good sharpness. Therefore, even wet sand S can be easily cut off, and the sand can be smoothly conveyed to the belt conveyor 6. An underwater pack P of sand columns can be reliably and continuously formed within the sand column.
なお、上記実施例では、中空回転体１７を２個
設けているが、その個数には限定されず、１個ま
たは３個以上設けても良く、またその形状及び回
転方向についても特に本実施例のものに限定する
ものではない。 In the above embodiment, two hollow rotating bodies 17 are provided, but the number is not limited, and one or three or more may be provided, and the shape and direction of rotation are also particularly different from this embodiment. It is not limited to those of.
従つて、本発明を適用した砂供給ホツパーにお
いては、湿潤状態の砂の場合においても、そのホ
ツパー内におけるアーチアクシヨンを防止でき、
砂をその下方の投下口から連続して供給可能にな
るという効果がある。 Therefore, in the sand supply hopper to which the present invention is applied, arch action within the hopper can be prevented even when the sand is in a wet state.
This has the effect of making it possible to continuously supply sand from the outlet below.
第１図は本発明のアーチアクシヨン防止装置を
適用した砂供給ホツパーを設けた砂柱形成装置の
全体配置側面図、第２図は第１図の砂供給ホツパ
ー内の中空回転体の斜視図である。
５……砂供給ホツパー、１０……ホツパー、１
７……中空回転体、１８……回転軸、Ｓ……砂。
Fig. 1 is a side view of the overall arrangement of a sand column forming device equipped with a sand supply hopper to which the arch action prevention device of the present invention is applied, and Fig. 2 is a perspective view of the hollow rotating body in the sand supply hopper of Fig. 1. It is. 5...Sand supply hopper, 10...Hopper, 1
7...Hollow rotating body, 18...Rotating shaft, S...Sand.
Claims (1)
体を設けて、その回転体を回転させながら砂を供
給することを特徴とする砂供給ホツパーのアーチ
アクシヨン防止方法。 ２ 砂供給ホツパー内に、骨組からなる回転可能
な中空回転体を設け、砂を供給することを特徴と
する砂供給ホツパーのアーチアクシヨン防止装
置。[Scope of Claims] 1. A method for preventing arch action in a sand supply hopper, characterized in that a hollow rotating body made of a framework is provided in the sand supply hopper, and sand is supplied while rotating the rotating body. 2. An arch action prevention device for a sand supply hopper, characterized in that a rotatable hollow rotating body made of a framework is provided in the sand supply hopper to supply sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58145768A JPS6037322A (en) | 1983-08-11 | 1983-08-11 | Method and apparatus for preventing arching action of sand supply hopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58145768A JPS6037322A (en) | 1983-08-11 | 1983-08-11 | Method and apparatus for preventing arching action of sand supply hopper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6037322A JPS6037322A (en) | 1985-02-26 |
| JPS648133B2 true JPS648133B2 (en) | 1989-02-13 |
Family
ID=15392709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58145768A Granted JPS6037322A (en) | 1983-08-11 | 1983-08-11 | Method and apparatus for preventing arching action of sand supply hopper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6037322A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102627192B (en) * | 2012-01-17 | 2015-04-01 | 刘延武 | Medicine chest of medicine arrangement machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5139770B2 (en) * | 1972-06-28 | 1976-10-29 |
-
1983
- 1983-08-11 JP JP58145768A patent/JPS6037322A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6037322A (en) | 1985-02-26 |
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