JPH0270028U - - Google Patents
Info
- Publication number
- JPH0270028U JPH0270028U JP14705788U JP14705788U JPH0270028U JP H0270028 U JPH0270028 U JP H0270028U JP 14705788 U JP14705788 U JP 14705788U JP 14705788 U JP14705788 U JP 14705788U JP H0270028 U JPH0270028 U JP H0270028U
- Authority
- JP
- Japan
- Prior art keywords
- hole
- perforated pipe
- view
- filter
- showing
- 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.)
- Pending
Links
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Description
第１図は本考案の孔あき管の概要を示す斜視図
、第２図は第１図の―線断面図、第３図は第
１図の―線部分拡大断面図、第４図は本考案
に係る防護板の他の実施例のうち、孔部に保護管
を立設する方式を示す部分斜視図、第５図はその
孔部の鉛直断面図、第６図は本考案に係る防護板
の他の実施例のうち、孔部に山形断面の突起を取
付ける方式を示す部分斜視図、第７図は本考案に
係る防護板の他の実施例のうち、孔位置の板を二
重とする方式を示す部分斜視図、第８図はその孔
部の鉛直断面図、第９図は本考案に係る防護板の
他の実施例のうち、孔の周囲に格子状配置の補強
板を立設する方式を示す部分斜視図、第１０図は
防護板の相対する長手方向端部フランジを溶接接
合する場合を示す部分水平断面図、第１１図は防
護板の相対する長手方向端部を溶接接合する場合
を示す部分水平断面図、第１２図は防護板をその
上下端部において直接孔あき管と溶接接合する場
合を示す側面図、第１３図はその防護板上端部の
鉛直断面図、第１４図は本考案の孔あき管の製造
方法の概要を示す工程図、第１５図は従来の孔あ
き管の構造を示す斜視図である。
１…孔あき管、２…孔、３…フイルター、４…
穿孔部、５…防護板、６…孔、７…ボルト、８…
座金、９…ナツト、１０…フランジ、１１…保護
管、１２…突起、１３…保護板、１４…補強板、
１５…防護板のフランジ端部、１６…防護板の長
手方向端部、１７…防護板の上端、１８…防護板
の下端。
Fig. 1 is a perspective view showing the outline of the perforated pipe of the present invention, Fig. 2 is a sectional view taken along the line - - in Fig. 1, Fig. 3 is an enlarged sectional view taken along the line - - in Fig. 1, and Fig. 4 is the main Among other embodiments of the protection plate according to the invention, FIG. 5 is a partial perspective view showing a method of installing a protection tube upright in the hole, FIG. 5 is a vertical sectional view of the hole, and FIG. 6 is a protection plate according to the invention. Among other embodiments of the plate, a partial perspective view showing a method of attaching protrusions with a chevron-shaped cross section to the holes, and FIG. FIG. 8 is a vertical cross-sectional view of the hole, and FIG. 9 is a partial perspective view showing a method in which a reinforcement plate is arranged in a lattice pattern around the hole. FIG. 10 is a partial horizontal cross-sectional view showing the case in which flanges at opposing longitudinal ends of the protection plate are welded together; FIG. 11 is a partial perspective view showing the method of vertically installing the protection plate; FIG. 12 is a side view showing the case where the protection plate is directly welded to the perforated pipe at its upper and lower ends; FIG. 13 is a vertical sectional view of the upper end of the protection plate. , FIG. 14 is a process diagram showing an overview of the perforated tube manufacturing method of the present invention, and FIG. 15 is a perspective view showing the structure of a conventional perforated tube. 1... Perforated pipe, 2... Hole, 3... Filter, 4...
Perforation part, 5...protective plate, 6...hole, 7...bolt, 8...
Washer, 9... Nut, 10... Flange, 11... Protection tube, 12... Protrusion, 13... Protective plate, 14... Reinforcement plate,
15... Flange end of the protection plate, 16... Longitudinal end of the protection plate, 17... Upper end of the protection plate, 18... Lower end of the protection plate.
Claims (1)
、その孔部に砂の侵入を阻止する通水性のあるフ
イルターを設けてなる孔あき管において、前記フ
イルターの外表面に前記多数の孔とほぼ同位置に
孔を穿設したフイルター損傷防止用の防護板を取
付けたことを特徴とする液状化対策用孔あき管。 (2) 前記防護板の孔位置の外表面には該孔とほ
ぼ同一の内径を有する所要高さの突起を設けてあ
る請求項１記載の液状化対策用孔あき管。[Claims for Utility Model Registration] (1) A perforated pipe having a large number of holes drilled in the longitudinal direction and the circumferential direction and provided with a water-permeable filter to prevent sand from entering the hole, 1. A perforated pipe for preventing liquefaction, characterized in that a protective plate for preventing damage to the filter is attached to the outer surface of the filter with holes formed at approximately the same positions as the plurality of holes. (2) The perforated pipe for liquefaction countermeasures according to claim 1, wherein the outer surface of the protective plate at the hole position is provided with a protrusion having a required height and having an inner diameter substantially the same as that of the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14705788U JPH0270028U (en) | 1988-11-11 | 1988-11-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14705788U JPH0270028U (en) | 1988-11-11 | 1988-11-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0270028U true JPH0270028U (en) | 1990-05-28 |
Family
ID=31417117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14705788U Pending JPH0270028U (en) | 1988-11-11 | 1988-11-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0270028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04115011A (en) * | 1990-09-04 | 1992-04-15 | Sumitomo Metal Ind Ltd | Liquefaction restraining pile, manufacture thereof and plug for liquefaction restraining pile |
-
1988
- 1988-11-11 JP JP14705788U patent/JPH0270028U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04115011A (en) * | 1990-09-04 | 1992-04-15 | Sumitomo Metal Ind Ltd | Liquefaction restraining pile, manufacture thereof and plug for liquefaction restraining pile |
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