EP0249654A2 - Shore strut assembly for supporting sheathing wall - Google Patents
Shore strut assembly for supporting sheathing wall Download PDFInfo
- Publication number
- EP0249654A2 EP0249654A2 EP86113979A EP86113979A EP0249654A2 EP 0249654 A2 EP0249654 A2 EP 0249654A2 EP 86113979 A EP86113979 A EP 86113979A EP 86113979 A EP86113979 A EP 86113979A EP 0249654 A2 EP0249654 A2 EP 0249654A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- shore
- shore strut
- strut assembly
- block
- blocks
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
Definitions
- This invention relates to a shore strut assembly for supporting a sheathing wall and more particularly to a shore strut assembly for supporting a sheathing wall that can be assembled and disassembled easily.
- a plurality of sheet piles 11 are driven to predetermined depth into the ground in neighboring relation to one another. Then, after digging each sheet pile 11 into the ground to the extent that the sheet piles 11 are not tilted under the soil pressure, wales 12 for supporting the sheet piles 11 are attached to the sheet piles in a direction substantially at right angles with the driving direction of the sheet piles 11. Then, in order to prevent the sheet piles from tilting towards a pit 13 under the soil pressure, a shore strut 14 is installed between a pair of opposing wales 12, 12 mounted to the sheet piles 11 constituting opposing sheating wall sections 10, 10.
- a jack 15 is attached to the shore strut 14 so that the shore strut 14 will be correctly mounted in position between the wales by the extension and retraction of the jack 15. It is noted that the jack 15 may be mounted between the wale 12 and the shore strut 14 or between the opposing shore struts 14, 14.
- the jack 15 is extended by manually turning a handle 15a, the manual force of operations is sometimes insufficient to properly secure the shore strut 14 between the wales 12, 12 so that the shore strut 14 are likely to drop under small impact. Moreover, the shaft of the jack 15 is apt to be broken in case of elevated soil pressure.
- the handle 15a is turned manually after the end of the predetermined construction operations and is gradually retracted the jack 15 for detaching the shore strut 14, it frequently occurs that the sheet piles 11 are inclined towards the pit 13 under the soil pressure such that the jack 15 is pinched between the wale 12 and the shore strut 14 or between the opposing shore struts so that it becomes impossible to detach the shore struts 14. In this case, it becomes necessary to dismount the jack 15 by striking it with a hammer or the like with considerable labor, while the expensive jack may be occasionally destroyed.
- a shore strut assembly for supporting a sheathing wall comprising a plurality of blocks each connected in series to form a parallelepiped as a whole, at least one of the blocks being fastened to one end of a shore strut for forming an extension of the shore strut and for receiving pressure acting on the sheathing wall together with the shore strut, at least one end face of one block abutting against one end face of the adjacent block at an angle inclined relative to a plane normal to a longitudinal axis of the shore strut and the strut assembly so that when disassembling the shore strut assembly after use, the one block slides along with the inclined angle by the action of the pressure along the longitudinal axis of the shore strut and the shore strut assembly so as to be disengaged from the adjacent block.
- FIG. 20 an embodiment of the shore strut assembly of the present invention is indicated generally by reference numeral 20.
- the shore strut assembly 20 is made up of three blocks 21, 22 and 23 connected together in series. In the present embodiment, the blocks 21 to 23 are connected together by bolts/nuts 24.
- one or more shore struts 14 of a predetermined length, H steel beams in the present example are selected as a function of the size of the pit 13, while the blocks 21 to 23 are selected from among a number of prefabricated blocks of various sizes so that these blocks when connected together in position will approximately fill the gap between the wale 12 and an end plate 14a welded to the end of the shore strut 14.
- the end plate 14a and the blocks 21 to 23 may be previously connected together at the plant and transported to the site of construction for connecting the block 23 to the wale 12.
- the block 21 may be previously connected at the plant to the end plate 14a of the shore strut 14 by bolts/nuts 24, similarly at the plant and the block 23 connected to the wale 12 at the site of construction.
- the block 22 is finally introduced at the construction site between the blocks 21 and 23 and connected by bolts/nuts 24.
- These bolts/nuts 24 are preferably employed for connecting the blocks, the end plate and the wale.
- a bolt tightener may be used for tightening the bolts in situ.
- the bolt tightener is provided with an end part for receiving the bolt and being rotated for tightening the bolt.
- the shore strut assembly 20 is securely connected in position between the shore strut 14 and the wale 12 so that there is no risk of accidental dropping of the assembly 20.
- the blocks 21 to 23 are shown in perspective so that the inner parts thereof can be seen through from outside.
- the block 21 is a hollow block formed by an upper plate 21a, a lower plate 21b, a vertically extending lateral plate 21c having unnumbered through-holes for passage of tightening bolts, an inclined lateral plate 21d having unnumbered through-holes for passage of tightening bolts, and an inner reinforcement plate 21e.
- the block 22 is identically constructed as the block 21 except that the vertically extending lateral plate 21c of the block 21 is replaced by an inclined lateral plate 22c so that the block 22 has two inclined lateral plates 22c, 22d.
- the block 23 is also identically constructed as the blocl 21 except that the blocks are symmetrical relative to each other so that the block 23 is indicated by the same reference numerals as the block 21 and the redundant description is similarly omitted.
- the blocks 21, 22 and 23 when connected together in series will form a parallelepiped as a whole, in the present embodiment, a right-angled parallelepiped, as the extension of the shore strut 14.
- the shore strut assembly 20 and the strut 14 are acted upon by pressure from the sheathing wall 10 along the longitudinal axis x in order to prevent the sheet pile 11 from becoming tilted in the direction of the pit 13.
- the inclined lateral plate 21d of the block 21 and the inclined lateral plate 22c of the block 22 abut to each other at an angle inclined relative to a plane y normal to the longitudinal axis x of the shore strut 14 and the shore strut assembly 20, while the inclined lateral plate 22d of the block 22 and the inclined lateral plate 23c of the block 23 abut to each other at an angle inclined relative to a plane z normal to the axis x.
- a wire rope is attached to the shore strut 14 in order to hoist the shore strut 14 by a crane, not shown, so that the shore strut 14 will not drop by gravity during dismounting.
- the shore strut assembly 20 is then disassembled.
- the blocks 21, 22 are spot welded to each other along a seamline as at 25, while the blocks 22, 23 are also spot welded to each other along a seamline as at 26 in order to prevent the soil pressure from being applied to the bolts/nuts 24 while also preventing the block 22 from dropping by gravity during dismounting of the assembly 20.
- the bolts/nuts 24 connecting the blocks 21, 22 to each other and the bolts/nuts 24 connecting the blocks 22, 23 to each other are then loosened, after which the upper surface of the block 22 is struck as with a hammer, not shown, for dismounting. Since the preseure acts on the inclined lateral plates 22c, 22d of the block 22 in a direction along the longitudinal axis x of the shore strut 14 and the shore strut assembly 20, as shown in Fig.4, the block 22 is slid under the operation of the pressure in accordance with the inclined angle such that the block 22 is instantly disengaged from the blocks 21, 23.
- the blocks 21, 22 may be loosely connected by a rope 27, for example, in order to prevent the block 22 from dropping down.
- the shore strut assembly 20 formed by the blocks 21, 22 and 23 may be connected between two shore struts 14, 14, as shown in Fig.5.
- Fig.6 shows a shore strut assembly 60 which is modified from the shore strut assembly 20 shown in Figs. 2 to 5.
- the assembly 20 is made up of two blocks 61, 62.
- the block 61 is formed by an upper plate 61a, a lower plate 61b, an inclined lateral plate 61c, a vertically extending lateral plate 61d and a central inner reinforcement plate 61e, as in the case of the shore strut assembly 20 of Fig.3.
- the inclined lateral plate 61c is made up of two inclined sections 61c1, 61c2 and a step or shoulder 61c3 interconnecting the inclined sections 61c1 and 61c2 with an offset along the longitudinal axis of the shore strut 14.
- the block 61 is secured to the wale 12 by bolts/nuts 24.
- the block 62 is connected to the shore strut 14 in a topsy-turvied relation to the block 61 and identically constructed as the block 61 so that redundant description is omitted for simplicity.
- the shore strut 14 When mounting the shore strut assembly 60 in position, the shore strut 14 is set so that the step or shoulder 62c3 of the block 62 rests on the step or shoulder 61c3 of the block 61 as shown. A shim plate 63 is then driven into a space between the soil and the sheathing wall 10 for tilting the sheet pile 11 so as to abut the blocks 61, 62 to each other. Finally, the blocks 61, 62 are secured to one another by bolting.
- the shore strut assembly 60 is convenient when performing a fine adjustment of the mounting distance.
- the dismounting of the shore strut assembly 60 shown in Fig.6 is performed by the same sequence of operations as described with reference to Fig.2. In this case, the inclined lateral plate 61c of the block 61 is shifted relative to the inclined lateral plate 62c of the block 62, with the block 62 sliding in the direction of the arrow mark d.
- Fig.7 shows a further different shore strut assembly 70 consisting of a combination of the blocks 61, 62 shown in Fig.6.
- a left side block 62 is connected to the shore strut 14
- a right side block 62 is connected to the wale 12
- intermediate blocks 61, 61 are connected between the blocks 61, 61 with vertically extending lateral plates 61d, 61d thereof in abutting relation to each other.
- Fine adjustment of the mounting distance can be performed by the shim plate 63 and by taking advantage of the steps 61c3, 62c3.
- the blocks 61, 61 can be detached as one from the blocks 62, 62.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Joining Of Building Structures In Genera (AREA)
- Bridges Or Land Bridges (AREA)
- Retaining Walls (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
Description
- This invention relates to a shore strut assembly for supporting a sheathing wall and more particularly to a shore strut assembly for supporting a sheathing wall that can be assembled and disassembled easily.
- In the construction of various construction works such as buildings, roads, railroads, water ducts or dams, soil and sand or rock are first excavated to form a pit within which various construction works are carried out. For such excavation, a sheathing wall is formed to prevent the surrounding soil and sand or rock from collapsing.
- Referring to Fig.1, for the formation of a
sheathig wall 10, a plurality of sheet piles 11 are driven to predetermined depth into the ground in neighboring relation to one another. Then, after digging each sheet pile 11 into the ground to the extent that the sheet piles 11 are not tilted under the soil pressure, wales 12 for supporting the sheet piles 11 are attached to the sheet piles in a direction substantially at right angles with the driving direction of the sheet piles 11. Then, in order to prevent the sheet piles from tilting towards apit 13 under the soil pressure, ashore strut 14 is installed between a pair ofopposing wales sheating wall sections wales jack 15 is attached to theshore strut 14 so that theshore strut 14 will be correctly mounted in position between the wales by the extension and retraction of thejack 15. It is noted that thejack 15 may be mounted between thewale 12 and theshore strut 14 or between theopposing shore struts - However, since the
jack 15 is extended by manually turning ahandle 15a, the manual force of operations is sometimes insufficient to properly secure theshore strut 14 between thewales shore strut 14 are likely to drop under small impact. Moreover, the shaft of thejack 15 is apt to be broken in case of elevated soil pressure. In addition, when thehandle 15a is turned manually after the end of the predetermined construction operations and is gradually retracted thejack 15 for detaching theshore strut 14, it frequently occurs that the sheet piles 11 are inclined towards thepit 13 under the soil pressure such that thejack 15 is pinched between thewale 12 and theshore strut 14 or between the opposing shore struts so that it becomes impossible to detach theshore struts 14. In this case, it becomes necessary to dismount thejack 15 by striking it with a hammer or the like with considerable labor, while the expensive jack may be occasionally destroyed. - It is a principal object of the present invention to provide a shore strut assembly for supporting a sheathing wall which allows the shore strut to be positively secured without the risk of incidental dropping and without requiring manual operation.
- It is another object of the present invention to provide a shore strut assembly for supporting a sheathing wall which can be extremely easily assembled and disassembled.
- It is a further object of the present invention to provide a shore strut assembly for supporting a sheathing wall which allows the shore strut to be instantly disassemled and dismounted under the prevailing soil pressure.
- It is a further object of the present invention to provide a sturdy and inexpensive shore strut assembly for supporting the sheathing wall.
- These and other objects of the invention will become clear from the following description.
- According to the prese nt invention, there is provided a shore strut assembly for suporting a sheathing wall comprising a plurality of blocks each connected in series to form a parallelepiped as a whole, at least one of the blocks being fastened to one end of a shore strut for forming an extension of the shore strut and for receiving pressure acting on the sheathing wall together with the shore strut, at least one end face of one block abutting against one end face of the adjacent block at an angle inclined relative to a plane normal to a longitudinal axis of the shore strut and the strut assembly so that when disassembling the shore strut assembly after use, the one block slides along with the inclined angle by the action of the pressure along the longitudinal axis of the shore strut and the shore strut assembly so as to be disengaged from the adjacent block.
-
- Fig.1 is a perspective view wherein conventional members for supporting the sheathing wall and the site of excavation are schematically shown.
- Fig.2 is a perspective view showing an embodiment of a shore strut assembly according to the present invention, and showing the assembly when mounted in position.
- Figs.3a, 3b and 3c are perspective views showing blocks that make up the shore strut assembly shown in Fig.2, these blocks being shown so that the inner parts can be seen through from outside;
- Fig.4 is a diagrammatic sectional view taken along line IV - IV of Fig.2.
- Fig.5 is a side elevational view showing the shore strut assembly of Fig.2 when mounted between two shore struts;
- Fig.6 is a sectional view showing a further embodiment of the shore strut assembly of the present invention; and
- Fig.7 is a side elevational view showing a further embodiment of the shore strut assembly of the present invention.
- Reference is made to the accompanying drawings illustrating certain preferred embodiments of the present invention.
- Referring to Figs. 2 to 4, an embodiment of the shore strut assembly of the present invention is indicated generally by
reference numeral 20. In these figures, the parts or components same as those shown in Fig.1 are indicated by the same numerals. Theshore strut assembly 20 is made up of threeblocks blocks 21 to 23 are connected together by bolts/nuts 24. In the actual construction, one ormore shore struts 14 of a predetermined length, H steel beams in the present example, are selected as a function of the size of thepit 13, while theblocks 21 to 23 are selected from among a number of prefabricated blocks of various sizes so that these blocks when connected together in position will approximately fill the gap between thewale 12 and an end plate 14a welded to the end of theshore strut 14. The end plate 14a and theblocks 21 to 23 may be previously connected together at the plant and transported to the site of construction for connecting theblock 23 to thewale 12. As an alternative, theblock 21 may be previously connected at the plant to the end plate 14a of theshore strut 14 by bolts/nuts 24, similarly at the plant and theblock 23 connected to thewale 12 at the site of construction. Theblock 22 is finally introduced at the construction site between theblocks nuts 24. These bolts/nuts 24 are preferably employed for connecting the blocks, the end plate and the wale. A bolt tightener, not shown, may be used for tightening the bolts in situ. The bolt tightener is provided with an end part for receiving the bolt and being rotated for tightening the bolt. As shown in Fig.2, theshore strut assembly 20 is securely connected in position between theshore strut 14 and thewale 12 so that there is no risk of accidental dropping of theassembly 20. - In Figs. 3a to 3c, the
blocks 21 to 23 are shown in perspective so that the inner parts thereof can be seen through from outside. Theblock 21 is a hollow block formed by an upper plate 21a, a lower plate 21b, a vertically extending lateral plate 21c having unnumbered through-holes for passage of tightening bolts, an inclined lateral plate 21d having unnumbered through-holes for passage of tightening bolts, and an inner reinforcement plate 21e. Theblock 22 is identically constructed as theblock 21 except that the vertically extending lateral plate 21c of theblock 21 is replaced by an inclinedlateral plate 22c so that theblock 22 has two inclinedlateral plates block 22 is omitted. Theblock 23 is also identically constructed as theblocl 21 except that the blocks are symmetrical relative to each other so that theblock 23 is indicated by the same reference numerals as theblock 21 and the redundant description is similarly omitted. - As can be seen from Figs. 2 to 4, the
blocks shore strut 14. As shown in Fig.4, theshore strut assembly 20 and thestrut 14 are acted upon by pressure from thesheathing wall 10 along the longitudinal axis x in order to prevent the sheet pile 11 from becoming tilted in the direction of thepit 13. The inclined lateral plate 21d of theblock 21 and the inclinedlateral plate 22c of theblock 22 abut to each other at an angle inclined relative to a plane y normal to the longitudinal axis x of theshore strut 14 and theshore strut assembly 20, while the inclinedlateral plate 22d of theblock 22 and the inclinedlateral plate 23c of theblock 23 abut to each other at an angle inclined relative to a plane z normal to the axis x. As will be clarified hereafter, it is critical in the present invention that the adjacent blocks abut to each other at an angle inclined relative to a plane normal to the longitudinal axis of the shore strut and the shore strut assembly. - After the predetermined operation in the
pit 13 is terminated so that it becomes necessary to dismount thesheathig wall 10, a wire rope, not shown, is attached to theshore strut 14 in order to hoist theshore strut 14 by a crane, not shown, so that theshore strut 14 will not drop by gravity during dismounting. Theshore strut assembly 20 is then disassembled. At this time, as shown in Fig.2, theblocks blocks nuts 24 while also preventing theblock 22 from dropping by gravity during dismounting of theassembly 20. The bolts/nuts 24 connecting theblocks nuts 24 connecting theblocks block 22 is struck as with a hammer, not shown, for dismounting. Since the preseure acts on the inclinedlateral plates block 22 in a direction along the longitudinal axis x of theshore strut 14 and theshore strut assembly 20, as shown in Fig.4, theblock 22 is slid under the operation of the pressure in accordance with the inclined angle such that theblock 22 is instantly disengaged from theblocks blocks rope 27, for example, in order to prevent theblock 22 from dropping down. - In case the
pit 13 is of a larger widthwise dimension, theshore strut assembly 20 formed by theblocks shore struts - Fig.6 shows a
shore strut assembly 60 which is modified from theshore strut assembly 20 shown in Figs. 2 to 5. Theassembly 20 is made up of twoblocks block 61 is formed by an upper plate 61a, a lower plate 61b, an inclined lateral plate 61c, a vertically extending lateral plate 61d and a central inner reinforcement plate 61e, as in the case of theshore strut assembly 20 of Fig.3. The inclined lateral plate 61c is made up of two inclined sections 61c1, 61c2 and a step or shoulder 61c3 interconnecting the inclined sections 61c1 and 61c2 with an offset along the longitudinal axis of theshore strut 14. Theblock 61 is secured to thewale 12 by bolts/nuts 24. Theblock 62 is connected to theshore strut 14 in a topsy-turvied relation to theblock 61 and identically constructed as theblock 61 so that redundant description is omitted for simplicity. - When mounting the
shore strut assembly 60 in position, theshore strut 14 is set so that the step or shoulder 62c3 of theblock 62 rests on the step or shoulder 61c3 of theblock 61 as shown. Ashim plate 63 is then driven into a space between the soil and thesheathing wall 10 for tilting the sheet pile 11 so as to abut theblocks blocks shore strut assembly 60 is convenient when performing a fine adjustment of the mounting distance. The dismounting of theshore strut assembly 60 shown in Fig.6 is performed by the same sequence of operations as described with reference to Fig.2. In this case, the inclined lateral plate 61c of theblock 61 is shifted relative to the inclinedlateral plate 62c of theblock 62, with theblock 62 sliding in the direction of the arrow mark d. - Fig.7 shows a further different
shore strut assembly 70 consisting of a combination of theblocks left side block 62 is connected to theshore strut 14, aright side block 62 is connected to thewale 12, andintermediate blocks blocks shim plate 63 and by taking advantage of the steps 61c3, 62c3. When dismounting theshore strut assembly 70, theblocks blocks
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61142651A JPS63528A (en) | 1986-06-20 | 1986-06-20 | Supporting and take-down type structure for shore strut |
JP142651/86 | 1986-06-20 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0249654A2 true EP0249654A2 (en) | 1987-12-23 |
EP0249654A3 EP0249654A3 (en) | 1988-05-25 |
EP0249654B1 EP0249654B1 (en) | 1990-02-21 |
Family
ID=15320316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86113979A Expired - Lifetime EP0249654B1 (en) | 1986-06-20 | 1986-10-09 | Shore strut assembly for supporting sheathing wall |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0249654B1 (en) |
JP (1) | JPS63528A (en) |
KR (1) | KR880000653A (en) |
CN (1) | CN1004013B (en) |
DE (1) | DE3669073D1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4917285A (en) * | 1989-07-03 | 1990-04-17 | Rockford Manufacturing Group, Inc. | Dual capstan in-line wire drawing machine |
HK1061156A2 (en) * | 2004-04-01 | 2004-08-13 | Hong Kong Fiberglass Technolog | Shoring system for trenches |
CN100368635C (en) * | 2005-10-17 | 2008-02-13 | 东南大学 | Regulating device for pressure and expansion or contraction deformation of steel shore structure for foundation pit |
CN100526566C (en) * | 2006-08-16 | 2009-08-12 | 上海电力设计院有限公司 | Method for controlling foundation pit deformation by using time difference effect in foundation pit excavating process |
CN103437352A (en) * | 2013-09-04 | 2013-12-11 | 苏州罗兰机电设备有限公司 | Hole pile reinforcing device |
CN104612166B (en) * | 2014-12-16 | 2016-06-29 | 同济大学 | The combination supporting device of a kind of supporting hole wall and method for protecting support |
CN106436718B (en) * | 2016-09-09 | 2018-11-09 | 中建三局集团有限公司 | A kind of subway foundation pit large span support system and its construction method |
CN110004940A (en) * | 2019-04-28 | 2019-07-12 | 广州市设计院 | Supporting construction and its construction method |
CN111206592B (en) * | 2020-01-15 | 2021-04-27 | 天津大学 | Construction method of prefabricated steel-concrete combined support foundation pit supporting structure |
CN111997064A (en) * | 2020-08-27 | 2020-11-27 | 北京航天地基工程有限责任公司 | Geotechnical engineering underground structure |
CN114673163B (en) * | 2022-03-01 | 2024-01-12 | 中国一冶集团有限公司 | Cross support mounting device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2539703A (en) * | 1948-06-02 | 1951-01-30 | Sato Takeo | Single locking wedge |
DE1251242B (en) * | 1967-09-28 | Fa Friedrich Ischebech Ennepe tal-Altenvoerde | Long adjustable three-part civil engineering strut by screw adjustment | |
DE3312603A1 (en) * | 1982-04-15 | 1983-11-10 | Heinrich Dipl.-Ing. 4030 Ratingen Schliephacke | Multi-part intermediate piece arranged between shuttering elements |
-
1986
- 1986-06-20 JP JP61142651A patent/JPS63528A/en active Pending
- 1986-10-09 EP EP86113979A patent/EP0249654B1/en not_active Expired - Lifetime
- 1986-10-09 DE DE8686113979T patent/DE3669073D1/en not_active Expired - Fee Related
- 1986-10-24 KR KR1019860008927A patent/KR880000653A/en not_active Application Discontinuation
- 1986-12-06 CN CN86108374.1A patent/CN1004013B/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1251242B (en) * | 1967-09-28 | Fa Friedrich Ischebech Ennepe tal-Altenvoerde | Long adjustable three-part civil engineering strut by screw adjustment | |
US2539703A (en) * | 1948-06-02 | 1951-01-30 | Sato Takeo | Single locking wedge |
DE3312603A1 (en) * | 1982-04-15 | 1983-11-10 | Heinrich Dipl.-Ing. 4030 Ratingen Schliephacke | Multi-part intermediate piece arranged between shuttering elements |
Also Published As
Publication number | Publication date |
---|---|
EP0249654A3 (en) | 1988-05-25 |
CN86108374A (en) | 1987-12-30 |
KR880000653A (en) | 1988-03-28 |
DE3669073D1 (en) | 1990-03-29 |
EP0249654B1 (en) | 1990-02-21 |
JPS63528A (en) | 1988-01-05 |
CN1004013B (en) | 1989-04-26 |
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