CA1165573A - Method and apparatus for lining an excavation - Google Patents
Method and apparatus for lining an excavationInfo
- Publication number
- CA1165573A CA1165573A CA000377593A CA377593A CA1165573A CA 1165573 A CA1165573 A CA 1165573A CA 000377593 A CA000377593 A CA 000377593A CA 377593 A CA377593 A CA 377593A CA 1165573 A CA1165573 A CA 1165573A
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- Prior art keywords
- guiding
- wall plate
- plates
- wall
- excavation
- Prior art date
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Abstract
ABSTRACT
The invention relates to the lining of an excavation with wall plates (7,8) placed one above the other, which are displaceable in vertical guiding supports (5) with the use of barrel-like rollers engageable in guiding profiles of the wall plates. The lower wall plate (8) may be removed after displacement out of the plane of the upper wall plate. For this purpose the vertical guide elements attached to the vertical guiding supports are arranged in such a way that they are displaceable, for example, by means of pivotable levers (24,25). The wall plate consists of two parallel flat plates (30,31), which are connected by edge profiles piece (32,33) between which spacer elements (40) are present in the form of hat-like prolonged parts.
The invention relates to the lining of an excavation with wall plates (7,8) placed one above the other, which are displaceable in vertical guiding supports (5) with the use of barrel-like rollers engageable in guiding profiles of the wall plates. The lower wall plate (8) may be removed after displacement out of the plane of the upper wall plate. For this purpose the vertical guide elements attached to the vertical guiding supports are arranged in such a way that they are displaceable, for example, by means of pivotable levers (24,25). The wall plate consists of two parallel flat plates (30,31), which are connected by edge profiles piece (32,33) between which spacer elements (40) are present in the form of hat-like prolonged parts.
Description
iS5~'3 Technical Field ~ he invention relates to a process for,the lining of an excavation and the like by means of wall plates, dis-placeable in vertica] guides, wherein at least two wall plates are situated vertically one above the other.
Background Art To prevent an excavation and the like from collapsing, one often makes use of a lining construction wherein a number of guiding means are placed opposite -to each other and which, if,necessary, are kept spaced apart from each other by means of props. The guiding means themselves are provided with guiding elements between which wall lining plates are dis-placeable. ~or a shallow excavation it is sufficient to insert only one wall lining plate between each set of guide means but for deeper excavations it is preferable to divide the lining into a plurality of wall plates positioned one above the other. These wall plates are inserted from above so that when deepening the excavation the wall plates will correspondingly sink or be driven in. When the operations concerning such an excavation are completed, for example after laying a sewer pipe, the wall ]ining plates have to be removed.
' In connection with the great pressure which may be exerted by the ground on the wall plates it is not easy to pull up both plates at the same time. When the upper wall plate is removed first there is a possibility that the upper part of the excavation will collapse resulting in the lower plate being more difficult to remove.
It has already been su~gested that deeper excavations ~;s~
can be carried out stepwise with each wall having a separate gu:ide wherein the lowest plate, both when being inserted and removed, is replaceable behind -the upper plate. In order to ob-tain an ef:Eec~ive width on -the bottom level of the excavation more soil has to be removed ak the upper part of the excavation. Further, the costs of such vertical guide means are greater than those associated with other prior art devices.
Disclosure of the Invention .
. The invention contemplates a simple process for lining. an excavation of the type discussed, as well as an apparatus for applying such a process and a wall plate to be used therewith.
Broadly spea~ing the present invention provides a method for the lining of an excavation and the like by means oE vertical guiding supports which are erected at certain distances alongside the excavation walls and wherein between each pair of adjacent supports erected alongside the same wall, are inserted in a common plane at least two superimposed wall plates, one after the other, guided by common guiding means forming part of the guiding supports, characterised in that -Eor removal of the wall plates firstly each lower wall plate is displaced in a direction away from the adjacent wall and thereafter removed behind and along the respective upper wall plate whereafter the upper wall plate is removed.
The above method may be carried out by way of excavation lining apparatus comprising vertical guiding supports to be erected at certain distances alongside the ;5~;73 excavation walls, and wall plates to be inserted at least one above the other in a common plane between the guiding supports and -to be guided by common guiding means forming part oE the guiding supports, characterised in that -the guiding means intended for the lower wall plates are mounted on a separate support section which, at least in its upper region, is displaceable with respect to the guiding support carrying the remainder of the guiding means and away from a wall to be supported.
One may use pivotably lever elements on which either one or a number of guide elements are arranged in such a way that when the lining is finished the lever is in operating position and is directed substantially squarely to the face of the wall plates elements. However, the lever is dis-placeable in an upwards and backwards direction to release the lowest wall plate when removing the lining.
In an advantageous embodiment use is made of one lever which, through a connecting rod with compression members, releases the lowest wall plate when it is moved upwards and backwards.
In this way it suffices to use relatively~ simple guides, it being only necessary that the guide means within reach of the lowermost wall plates are movable over a certain distance. In this way a minimum of ground displacement over the full height of the excavation will be sufficient for a certain working distance. Moreover the props may be as short as possible and consequently be made firm and economically advantageous.
- ~ In a further embodiment of the invention it has ~ 3 655~3 appeared that a particularly ef~ective guidance bekween the guide means and the wall plates can be reached when use is made of subs-tan-tially barrel-shaped rollers, which are movable in guicL~ pro~iles with V-shaped or truncated V-shaped guiding profiles. In such an embodiment, wherein for each wall plate use is made of at least four rollers tone in each corner of the wall plate) jammlng is effectively prevented which might be otherwise caused if there was warping of the wall plates as they are driven in or removed. With such a construction, which is particularly applicable for use in the present invention, the wall plates may be placed and rèmoved with a minimum of effort, while substantially no maintenance is required. It has further been found that a very light and stable wall plate is obtained when it is built up of two parallel flat elements, which along the four edges are provided with an end profile and wherein between the two flat plates spacer elements are provided formed by substantially hat-shaped parts. Preferably these hat-shaped parts are alternatively placed in horizontal lines, the parts in two neighbouring lines being staggered in respect of each other.
Brief Description_of the Drawings Fig. 1 shows schematically in side view, partially in section, an excavation provided with a iining construction according to the invention.
Fig. 2 shows on a larger scale in horizontal section a detail of Fig. 1 along lines II-II.
Fig. 3 is an elevation of a wall plate according to the invention.
~; Fig. ~ shows an edge view of the wall plate according to Fig. 3.
~i55~3 Fig. 5 is a top view of the wall plate according to Fig. 3.
Fig. 6 on the same shee-t as Fig. 2 shows on a larger scale in horizontal section a detail of the wall of Fig. 3 according to line VI-VI.
Fig. 7 schematically shows a side view of a wall plate in operative position according to another embodiment of the invention;
Fig. 8 shows the situation wherein the lower wall plàte according to Fig. 7 may be removed from the excayation;
Fig. 9 shows a section of Fig. 7 along the line IX-IX;
Fig. 10 shows a side view of a part of a wall plate according to another embodiment of the invention;
FigO 11 shows in pla~ view a part of the wall plate according to the embodiment of the invention of Fig. 10; and Fig. 12 shows another side view of the embodiment of Fig. 10~ -Best Mode of Carring Out the Invention In ~ig. 1 an excavation lining construction is shown schematically. This construction may be used in a rectangular excavation, of which the walls 1,2 are indicated as well as a bottom floor 3.
On this bottom, in the example, a sewage pipe 4 has been placed. The walls 1 and 2 of the excavation are supported by a wall lining construction according to the invention. This is built up from a number of substantially vertically placed guiding supports 5,6 spaced apart along each wall 1,2 respectively, and wall plates 7,8 located between and supported by adjacent pairs of guiding supports 5,5 and 6,6.
~ -5-.
. . . .
,5~73 An upper wall plate is indicated by 7 and a similar lower pla-te by 8. Although the wall p.lates may in principle be made iden-tical, it is preferred to construct the lower plate with a sharp lower edge as at 9, so that it can easily be driven into the ground, whereafter the ground between the lined walls can be excavated until -the desired level for bottom 3 has been reached. The pair of oppositely placed guiding supports 5,6 are always spaced apart by means of props 10. This is in itsel well known. -The wall plates 7,8 may be moved downwards along guiding elements, such as rollers 11 after -the guiding supports 5,6 have been inserted into the excavation. The lower rollers meant for the lower wall plates 8 are not directly supported on a guiding support by bearings as are the upper rollers but, as 1s shown more clearly in Fig. 2, they are always supported by bearings on a support section 12. A support section is situated on each side of a body plate 13 of the guiding support 5 (see Fig. 2).
The body plate 13 is further proviaed along one edge with a front plate 14 which abuts against the wall of the excavation, while along the opposite edge it is provided with a substantially C-shaped guide means 15 for heads 16 of props 10. .The support sections 12 are arranyed on either side of the body plate 13 and are connected together by pins, which extend through elongated openings 20 of the body, by which the support sections 12 are movable in a horizontal direction.
A pair of compression elements 21 abut against the back edges of the support sections 12. These compression elements exte~nd through arcuate slots 22, in body plate 13.
: These compression elements are arranged at the end of an arm 23.
: -6-;5$ ~
This arm 23 is firmly connected to a pivot pin 24 r which is suppor-ted by a bearing in body plate 13~ At -the end of pin 2 a lever 25 is provided to displace the compression members 21.
By moving the lever 25 the compression members may be displaced from the position in full lines to the position shown by the dash lines in Fig. 1~ In the position indicated by full lines the support sections 12 are oriented in such a way that all rollers 11 thereof are always vertically above one another in guiding supports 5,6. In the position indicated by dash lines, the support sections 12 are retracted so far that the rollers supported thereby withdraw from the wall 2,1 t in which case also the lower wall plates 8, at least at the top part thereof, are displaced so far bac~wards out of the plane of the upper wall plates that they can be pulled out upwardly alongside the upper wall plates 7.
It is observed that the upper part of the wall plate 8 and the lower part of the wall plate 7 are maae correspondingly slanting in such a way that the lowe~ wall plate can easily move backwards.
It is understood that lnstead of pivotable arms 23 with compression members 21, one may also use removable compression members, such as wedges or keys, for fixing the support sections 12 in the operative positionO
In another advantageous embodiment as shown in Figs.
7, 8 and 9, a single lever construction is used to fix and release the lower wall plates. In Fig. 7 the lower wall plate is shown in its operative position, the plate being maintained in position by compression members or rollers 27, which are fixed to a connecting rod 26,26'. During movement of the lever system, as shown in Fig. 8, through pivot pin 29, lever arm 28 and connecting rocls 26,26', pivotably supported by the lever arm, the rollers 27 (which function as a compression member) move in slits 13' in the body member 13, by means oE which the compresC~ion members move away from the support section 120 The lower compression member need only move slightly upwards to provide the necessary space for the lower roller 11.
As also appears from Figs. 3-6, each wall plate is built up of two flat plates, a Eront plate 30 and back~plate 31. A profile piece 32 with a triangular cross section is present at the bot-tom edge and a correspondingly shaped profile piece 33 is provided at the top part. As a consequence of the inclined surface of the triangular profile piece 33 at the top part, a lower wall plate may easily move backwards, provided the guiding support will allow this. The upper profile piece 33 does not extend over the full length of the wall plate but is locally interrupted at 3~. ~t this interruption a substantially U-shaped drawing eye 35 is provided. This drawing eye is, by means of its legs, pivotally connected to the triangular profile piece 33. By means of the drawing hook or eyes a wall plate may be drawn or lifted away upwardly. Laterally of the wall plate and also serving to finish the ends of the parallel plates 30 and 31, an end profile 37 is provided. In this end profile 37, a profile with an ~-shaped section or angular section 38 is provided~ These angular profiles 38 serve for the guidance of the wall plates and are therefore in contact with the rollers 11. The rollers 11 are not fully cylindrical but bevelled at their edges 5~3 39 so that the shape of a barrel is obtained. By the cooperation of the rollers 11 with the angular profiles 38 an eEf:icient guiclance of the wall plates is obtained, in such a way that jamminy of -the wall plates as they are being pulled upwards in an :Lnclined way will be preventedO In this way jamming of the wall plates is, in all circumstances, avoided.
In another embodiment instead of using a drawing eye, a pivotable plate provided with a slot is arranged whlch, whèn -the wall plate has to be pulled out, is turned to~a vertical position, whereafter the wall plate may be removed by~ for example, a chain with a hook~ which engages in a slotO
In the vicinity of the interruption 44 this p:ivotable plate in Fig. 10 is indicated as 45, while in Fig. 11 slot 46 and axle 47 are visible. In Fig. 12 is shown (on an enlarged scale, according to section XII-XII of Fig. 11) plate 45, which is pivotable around axle 47 in upwards direction. Naturally more levers of this type may be present.
- An efficient construction of the wall plates includes parallel plates 30,31 spaced apart by spacer elements having a hat-like cross section. These spacer elements (in Fig. 6) generally indicated by 40, comprise a body portion 41, inclined flanges 42 and edges 43, which are spaced apart from the body portion 41. In this construction, the hat-like spacer elements 40 are each arranged in a series with the body portion 41 connected to the one plate 31. The spacer elements 40" in an ad~acent series are, however, connected to this plate 31 by means of the flanges 43". Between each ~3 ~ _9_ ;5S'~3 series there is always a horizontal baffle 39. The spacer elements are locally also welded to these ba:Efles 39.
In the cons-truction oE a similar wall plate one starts Erom one of the flat platesr onto which the edge profiles are arranged, and -the baffles as well as the spacer elements welded. This welding can be accomplished partly by spot welding, and partly by C02 welding~ Subsequently the other parallel running plate is arranged, which by means of unilateral spot welding is welded to the relative parts 41',43' of the spacer elements as well as to the edge profiles and baffles.
f ~ "':~
Background Art To prevent an excavation and the like from collapsing, one often makes use of a lining construction wherein a number of guiding means are placed opposite -to each other and which, if,necessary, are kept spaced apart from each other by means of props. The guiding means themselves are provided with guiding elements between which wall lining plates are dis-placeable. ~or a shallow excavation it is sufficient to insert only one wall lining plate between each set of guide means but for deeper excavations it is preferable to divide the lining into a plurality of wall plates positioned one above the other. These wall plates are inserted from above so that when deepening the excavation the wall plates will correspondingly sink or be driven in. When the operations concerning such an excavation are completed, for example after laying a sewer pipe, the wall ]ining plates have to be removed.
' In connection with the great pressure which may be exerted by the ground on the wall plates it is not easy to pull up both plates at the same time. When the upper wall plate is removed first there is a possibility that the upper part of the excavation will collapse resulting in the lower plate being more difficult to remove.
It has already been su~gested that deeper excavations ~;s~
can be carried out stepwise with each wall having a separate gu:ide wherein the lowest plate, both when being inserted and removed, is replaceable behind -the upper plate. In order to ob-tain an ef:Eec~ive width on -the bottom level of the excavation more soil has to be removed ak the upper part of the excavation. Further, the costs of such vertical guide means are greater than those associated with other prior art devices.
Disclosure of the Invention .
. The invention contemplates a simple process for lining. an excavation of the type discussed, as well as an apparatus for applying such a process and a wall plate to be used therewith.
Broadly spea~ing the present invention provides a method for the lining of an excavation and the like by means oE vertical guiding supports which are erected at certain distances alongside the excavation walls and wherein between each pair of adjacent supports erected alongside the same wall, are inserted in a common plane at least two superimposed wall plates, one after the other, guided by common guiding means forming part of the guiding supports, characterised in that -Eor removal of the wall plates firstly each lower wall plate is displaced in a direction away from the adjacent wall and thereafter removed behind and along the respective upper wall plate whereafter the upper wall plate is removed.
The above method may be carried out by way of excavation lining apparatus comprising vertical guiding supports to be erected at certain distances alongside the ;5~;73 excavation walls, and wall plates to be inserted at least one above the other in a common plane between the guiding supports and -to be guided by common guiding means forming part oE the guiding supports, characterised in that -the guiding means intended for the lower wall plates are mounted on a separate support section which, at least in its upper region, is displaceable with respect to the guiding support carrying the remainder of the guiding means and away from a wall to be supported.
One may use pivotably lever elements on which either one or a number of guide elements are arranged in such a way that when the lining is finished the lever is in operating position and is directed substantially squarely to the face of the wall plates elements. However, the lever is dis-placeable in an upwards and backwards direction to release the lowest wall plate when removing the lining.
In an advantageous embodiment use is made of one lever which, through a connecting rod with compression members, releases the lowest wall plate when it is moved upwards and backwards.
In this way it suffices to use relatively~ simple guides, it being only necessary that the guide means within reach of the lowermost wall plates are movable over a certain distance. In this way a minimum of ground displacement over the full height of the excavation will be sufficient for a certain working distance. Moreover the props may be as short as possible and consequently be made firm and economically advantageous.
- ~ In a further embodiment of the invention it has ~ 3 655~3 appeared that a particularly ef~ective guidance bekween the guide means and the wall plates can be reached when use is made of subs-tan-tially barrel-shaped rollers, which are movable in guicL~ pro~iles with V-shaped or truncated V-shaped guiding profiles. In such an embodiment, wherein for each wall plate use is made of at least four rollers tone in each corner of the wall plate) jammlng is effectively prevented which might be otherwise caused if there was warping of the wall plates as they are driven in or removed. With such a construction, which is particularly applicable for use in the present invention, the wall plates may be placed and rèmoved with a minimum of effort, while substantially no maintenance is required. It has further been found that a very light and stable wall plate is obtained when it is built up of two parallel flat elements, which along the four edges are provided with an end profile and wherein between the two flat plates spacer elements are provided formed by substantially hat-shaped parts. Preferably these hat-shaped parts are alternatively placed in horizontal lines, the parts in two neighbouring lines being staggered in respect of each other.
Brief Description_of the Drawings Fig. 1 shows schematically in side view, partially in section, an excavation provided with a iining construction according to the invention.
Fig. 2 shows on a larger scale in horizontal section a detail of Fig. 1 along lines II-II.
Fig. 3 is an elevation of a wall plate according to the invention.
~; Fig. ~ shows an edge view of the wall plate according to Fig. 3.
~i55~3 Fig. 5 is a top view of the wall plate according to Fig. 3.
Fig. 6 on the same shee-t as Fig. 2 shows on a larger scale in horizontal section a detail of the wall of Fig. 3 according to line VI-VI.
Fig. 7 schematically shows a side view of a wall plate in operative position according to another embodiment of the invention;
Fig. 8 shows the situation wherein the lower wall plàte according to Fig. 7 may be removed from the excayation;
Fig. 9 shows a section of Fig. 7 along the line IX-IX;
Fig. 10 shows a side view of a part of a wall plate according to another embodiment of the invention;
FigO 11 shows in pla~ view a part of the wall plate according to the embodiment of the invention of Fig. 10; and Fig. 12 shows another side view of the embodiment of Fig. 10~ -Best Mode of Carring Out the Invention In ~ig. 1 an excavation lining construction is shown schematically. This construction may be used in a rectangular excavation, of which the walls 1,2 are indicated as well as a bottom floor 3.
On this bottom, in the example, a sewage pipe 4 has been placed. The walls 1 and 2 of the excavation are supported by a wall lining construction according to the invention. This is built up from a number of substantially vertically placed guiding supports 5,6 spaced apart along each wall 1,2 respectively, and wall plates 7,8 located between and supported by adjacent pairs of guiding supports 5,5 and 6,6.
~ -5-.
. . . .
,5~73 An upper wall plate is indicated by 7 and a similar lower pla-te by 8. Although the wall p.lates may in principle be made iden-tical, it is preferred to construct the lower plate with a sharp lower edge as at 9, so that it can easily be driven into the ground, whereafter the ground between the lined walls can be excavated until -the desired level for bottom 3 has been reached. The pair of oppositely placed guiding supports 5,6 are always spaced apart by means of props 10. This is in itsel well known. -The wall plates 7,8 may be moved downwards along guiding elements, such as rollers 11 after -the guiding supports 5,6 have been inserted into the excavation. The lower rollers meant for the lower wall plates 8 are not directly supported on a guiding support by bearings as are the upper rollers but, as 1s shown more clearly in Fig. 2, they are always supported by bearings on a support section 12. A support section is situated on each side of a body plate 13 of the guiding support 5 (see Fig. 2).
The body plate 13 is further proviaed along one edge with a front plate 14 which abuts against the wall of the excavation, while along the opposite edge it is provided with a substantially C-shaped guide means 15 for heads 16 of props 10. .The support sections 12 are arranyed on either side of the body plate 13 and are connected together by pins, which extend through elongated openings 20 of the body, by which the support sections 12 are movable in a horizontal direction.
A pair of compression elements 21 abut against the back edges of the support sections 12. These compression elements exte~nd through arcuate slots 22, in body plate 13.
: These compression elements are arranged at the end of an arm 23.
: -6-;5$ ~
This arm 23 is firmly connected to a pivot pin 24 r which is suppor-ted by a bearing in body plate 13~ At -the end of pin 2 a lever 25 is provided to displace the compression members 21.
By moving the lever 25 the compression members may be displaced from the position in full lines to the position shown by the dash lines in Fig. 1~ In the position indicated by full lines the support sections 12 are oriented in such a way that all rollers 11 thereof are always vertically above one another in guiding supports 5,6. In the position indicated by dash lines, the support sections 12 are retracted so far that the rollers supported thereby withdraw from the wall 2,1 t in which case also the lower wall plates 8, at least at the top part thereof, are displaced so far bac~wards out of the plane of the upper wall plates that they can be pulled out upwardly alongside the upper wall plates 7.
It is observed that the upper part of the wall plate 8 and the lower part of the wall plate 7 are maae correspondingly slanting in such a way that the lowe~ wall plate can easily move backwards.
It is understood that lnstead of pivotable arms 23 with compression members 21, one may also use removable compression members, such as wedges or keys, for fixing the support sections 12 in the operative positionO
In another advantageous embodiment as shown in Figs.
7, 8 and 9, a single lever construction is used to fix and release the lower wall plates. In Fig. 7 the lower wall plate is shown in its operative position, the plate being maintained in position by compression members or rollers 27, which are fixed to a connecting rod 26,26'. During movement of the lever system, as shown in Fig. 8, through pivot pin 29, lever arm 28 and connecting rocls 26,26', pivotably supported by the lever arm, the rollers 27 (which function as a compression member) move in slits 13' in the body member 13, by means oE which the compresC~ion members move away from the support section 120 The lower compression member need only move slightly upwards to provide the necessary space for the lower roller 11.
As also appears from Figs. 3-6, each wall plate is built up of two flat plates, a Eront plate 30 and back~plate 31. A profile piece 32 with a triangular cross section is present at the bot-tom edge and a correspondingly shaped profile piece 33 is provided at the top part. As a consequence of the inclined surface of the triangular profile piece 33 at the top part, a lower wall plate may easily move backwards, provided the guiding support will allow this. The upper profile piece 33 does not extend over the full length of the wall plate but is locally interrupted at 3~. ~t this interruption a substantially U-shaped drawing eye 35 is provided. This drawing eye is, by means of its legs, pivotally connected to the triangular profile piece 33. By means of the drawing hook or eyes a wall plate may be drawn or lifted away upwardly. Laterally of the wall plate and also serving to finish the ends of the parallel plates 30 and 31, an end profile 37 is provided. In this end profile 37, a profile with an ~-shaped section or angular section 38 is provided~ These angular profiles 38 serve for the guidance of the wall plates and are therefore in contact with the rollers 11. The rollers 11 are not fully cylindrical but bevelled at their edges 5~3 39 so that the shape of a barrel is obtained. By the cooperation of the rollers 11 with the angular profiles 38 an eEf:icient guiclance of the wall plates is obtained, in such a way that jamminy of -the wall plates as they are being pulled upwards in an :Lnclined way will be preventedO In this way jamming of the wall plates is, in all circumstances, avoided.
In another embodiment instead of using a drawing eye, a pivotable plate provided with a slot is arranged whlch, whèn -the wall plate has to be pulled out, is turned to~a vertical position, whereafter the wall plate may be removed by~ for example, a chain with a hook~ which engages in a slotO
In the vicinity of the interruption 44 this p:ivotable plate in Fig. 10 is indicated as 45, while in Fig. 11 slot 46 and axle 47 are visible. In Fig. 12 is shown (on an enlarged scale, according to section XII-XII of Fig. 11) plate 45, which is pivotable around axle 47 in upwards direction. Naturally more levers of this type may be present.
- An efficient construction of the wall plates includes parallel plates 30,31 spaced apart by spacer elements having a hat-like cross section. These spacer elements (in Fig. 6) generally indicated by 40, comprise a body portion 41, inclined flanges 42 and edges 43, which are spaced apart from the body portion 41. In this construction, the hat-like spacer elements 40 are each arranged in a series with the body portion 41 connected to the one plate 31. The spacer elements 40" in an ad~acent series are, however, connected to this plate 31 by means of the flanges 43". Between each ~3 ~ _9_ ;5S'~3 series there is always a horizontal baffle 39. The spacer elements are locally also welded to these ba:Efles 39.
In the cons-truction oE a similar wall plate one starts Erom one of the flat platesr onto which the edge profiles are arranged, and -the baffles as well as the spacer elements welded. This welding can be accomplished partly by spot welding, and partly by C02 welding~ Subsequently the other parallel running plate is arranged, which by means of unilateral spot welding is welded to the relative parts 41',43' of the spacer elements as well as to the edge profiles and baffles.
f ~ "':~
Claims (11)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A method for the lining of an excavation and the like by means of vertical guiding supports which are erected at certain distances alongside the excavation walls and wherein, between each pair of adjacent supports erected along-side the same wall, are inserted in a common plane at least two superimposed wall plates, one after the other, guided by common guiding means forming part of the guiding supports, characterised in that for removal of the wall plates firstly each lower wall plate is displaced in a direction away from the adjacent wall and thereafter removed behind and along the respective upper wall plate whereafter the upper wall plate is removed.
2. Excavation lining apparatus comprising vertical guiding supports to be erected at certain distances alongside the excavation walls, and wall plates to be inserted at least one above the other in a common plane between the guiding supports and to be guided by common guiding means forming part of the guiding supports, characterised in that the guiding means intended for the lower wall plates are mounted on a separate support section which, at least in its upper region, is displaceable with respect to the guiding support carrying the remainder of the guiding means and away from a wall to be supported.
3. Apparatus according to claim 2 wherein at least one part of the support section can be moved backwards.
4. Apparatus according to claim 2 wherein at least part of the support section includes pivotable levers.
5. Apparatus according to claim 2 wherein the support section includes a series of pivotable levers, which levers are substantially at right angles to the surface of the lower wall plate when the lower wall plate has been erected, which levers are pivotable in an upwards and backwards direction for releasing the lower wall plate from the plane of the upper wall plate.
6. Apparatus according to claim 2 wherein each support section is movable squarely against the surface of the lower wall plate by means of horizontal guiding elements, the support sections in operative position being held in place by compression elements, said elements being movable for releasing the support sections in order to remove the lower wall plate.
7. Apparatus according to claim 6 wherein the compression elements are connected with each other by means of a connecting rod which is movable and which is able to displace the compression elements for releasing the support sections in order to remove the lower wall plate.
8. Apparatus according to claim 2 wherein the guiding support includes guiding parts formed by substantially barrel-shaped rollers movable in guiding profiles defined along the vertical edges of the wall plates, which guiding profiles in cross section form a substantially V-shaped guiding rail.
9. Apparatus according to claim 8 wherein at least some of the rollers are movable backwards in respect to the rest of the guiding support.
10. Apparatus according to claim 2 wherein each wall plate comprises substantially parallel flat plates, along the four edges of which are connected end profiles and wherein between the flat plates spacer elements are provided, the spacer elements being formed by hat-shaped elongated parts, each connected with the flat plates by means of welds.
11. Apparatus according to claim 10 wherein the hat-shaped spacer elements are arranged in horizontal series beside and below each other, and wherein the spacer elements are arranged in a stagger position from series to series in relation to each other.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL80.02788 | 1980-05-14 | ||
| NL8002788A NL8002788A (en) | 1980-05-14 | 1980-05-14 | METHOD AND APPARATUS FOR PAPER CLADDING |
| EP81200359.8 | 1981-03-31 | ||
| EP81200359A EP0039960B1 (en) | 1980-05-14 | 1981-03-31 | Method and apparatus for lining of an excavation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1165573A true CA1165573A (en) | 1984-04-17 |
Family
ID=26081489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000377593A Expired CA1165573A (en) | 1980-05-14 | 1981-05-14 | Method and apparatus for lining an excavation |
Country Status (3)
| Country | Link |
|---|---|
| AT (1) | ATE8286T1 (en) |
| CA (1) | CA1165573A (en) |
| DE (1) | DE8113432U1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10302284B4 (en) * | 2003-01-22 | 2005-10-27 | Werner Fritsch | Shoring and Verbauplatte and chamber plate for this |
-
1981
- 1981-03-31 AT AT81200359T patent/ATE8286T1/en not_active IP Right Cessation
- 1981-05-07 DE DE19818113432 patent/DE8113432U1/en not_active Expired
- 1981-05-14 CA CA000377593A patent/CA1165573A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ATE8286T1 (en) | 1984-07-15 |
| DE8113432U1 (en) | 1981-11-12 |
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