WO2015108098A1 - Procédé de dépose - Google Patents

Procédé de dépose Download PDF

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Publication number
WO2015108098A1
WO2015108098A1 PCT/JP2015/050904 JP2015050904W WO2015108098A1 WO 2015108098 A1 WO2015108098 A1 WO 2015108098A1 JP 2015050904 W JP2015050904 W JP 2015050904W WO 2015108098 A1 WO2015108098 A1 WO 2015108098A1
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WO
WIPO (PCT)
Prior art keywords
concrete member
dismantling
crushing
region
planned
Prior art date
Application number
PCT/JP2015/050904
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English (en)
Japanese (ja)
Inventor
隆寛 中村
柳田　克巳
鈴木　宏一
美那 岡村
佳久 松石
祐司 山川
河野　雄一郎
公明 村上
悠也 村上
松田　明
Original Assignee
鹿島建設株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP2014007884A external-priority patent/JP6411031B2/ja
Priority claimed from JP2014063754A external-priority patent/JP6411048B2/ja
Application filed by 鹿島建設株式会社 filed Critical 鹿島建設株式会社
Priority to SG11201605798WA priority Critical patent/SG11201605798WA/en
Publication of WO2015108098A1 publication Critical patent/WO2015108098A1/fr

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/08—Wrecking of buildings

Definitions

  • the present invention relates to a dismantling method for dismantling a concrete member.
  • large-scale concrete members such as pressure panels of existing underground structures may be locally dismantled when constructing new large underground structures.
  • FIG. 19A is an example of an existing structure 103 having a pressure platen 105 that is a large concrete member.
  • the outer periphery of the pressure platen 105 is disassembled and removed, and the earth retaining material is placed on the ground 101 below the dismantled part.
  • a wall 107 is provided.
  • the remaining part of the pressure platen 105 is disassembled and removed, and the ground 101 inside the retaining wall 107 is excavated. After this, a structure is constructed at the excavation site.
  • a breaker or the like that breaks the member by hitting the member or the like is often used, but there is a problem that noise or vibration occurs when the member is broken by hitting.
  • Patent Documents 1 to 3 there is a method (for example, Patent Documents 1 to 3) in which a hydraulic crusher, an expansible crushing agent, or the like is inserted into a hole provided in a concrete member, thereby generating a crack by applying pressure to the member.
  • the concrete members are usually disassembled from top to bottom using large heavy machinery such as a giant breaker.
  • JP 2003-90316 A Japanese Unexamined Patent Publication No. 7-324585 JP-A 61-155589 JP 2009-228977 A
  • the CD method is costly because the equipment itself and crawler crane that rotate the entire circumference of the casing are large.
  • the work by the device main body is mainly performed on the existing structure.
  • the device since the device is large, it is necessary to reinforce the existing structure, which is inefficient.
  • the dismantling method by blasting has the same problems of noise and vibration. Especially in cases where the perimeter of the wall is constrained by pillars or beams, a large amount of drilling and charge is required, and there are significant noise and vibration problems that make it difficult to apply in urban construction.
  • Inserting a hydraulic crusher into the hole and applying pressure to the concrete to generate cracks can be performed easily even in a small space, and there is little noise and vibration, but care must be taken when dismantling the wall. is necessary. For example, when pressure is applied to concrete by a hydraulic crusher and the concrete is pushed upwards and cracks are generated and the concrete is divided, the divided concrete settles under its own weight and closes the cracks, making it difficult to secondary crush the concrete with nibbles, etc.
  • the hydraulic crusher may not come off due to the pressure of the settled concrete.
  • the present invention has been made in view of the above-described problems, and an object of the present invention is to provide a dismantling method that can suitably dismantle a concrete member.
  • a first invention for achieving the above-described object is a dismantling method for disassembling a concrete member, the step (a) of forming an opening at an interval in a planned dismantling region of the concrete member, A step (b) in which a pressure is applied from a crushing hole drilled in a concrete member in an intermediate region between the openings, and the concrete member is extruded in the direction of the openings to divide the concrete member, b) is repeated, and the concrete member in the intermediate region is cut in order from each opening side.
  • the concrete member in the intermediate region between them is divided and crushed.
  • the process of pressing and dividing the concrete member in the direction of the opening by applying pressure from a crushing hole drilled at an appropriate position is repeated, and the cutting is performed in order from each opening.
  • a large heavy machine is not required, the number of drilling holes in the member is small, the work is easy, and the cost and work period can be reduced.
  • work can be performed in a narrow underground area, and there are few problems of noise and vibration.
  • the concrete member can be divided with a smaller working pressure than the conventional method of crushing members in a straight line connecting a large number of holes at a time, problems such as scattering of members do not occur.
  • replacement of heavy machinery can be reduced, and dismantling efficiency is high.
  • step (b) it is desirable to apply pressure to the concrete member using a hydraulic crusher.
  • a hydraulic crusher pressure can be applied only in a predetermined direction, so that the concrete member can be pushed out in the intended direction, preventing unnecessary cracks from occurring in the surrounding concrete member, and crushing control is easy. become.
  • step (a) a continuous core hole in which a plurality of core holes are continuous is formed, and the concrete member is extruded in the direction of the continuous core hole from a crushing hole drilled around the continuous core hole, thereby dividing the concrete member. It is desirable to remove the separated concrete member. In this case, it is preferable to use a common heavy machine or the like when dividing the intermediate region when forming the opening.
  • step (a) it is also desirable to extrude the concrete member in the direction of the surface of the concrete member from the crushing holes drilled obliquely in the vertical plane, divide the concrete member, and remove the divided concrete member. .
  • the concrete since the concrete is extruded and divided in the direction of the surface of the concrete member, there is an advantage that it is not necessary to secure a moving space for the concrete member by perforating the concrete member in advance.
  • step (a) it is also desirable to drill a core hole having a diameter over the entire width of the planned dismantling region. In this case, there is an advantage that an opening can be formed only by drilling one core hole.
  • a core hole having a diameter smaller than the entire width of the planned dismantling region is drilled, and a concrete member is formed in the direction of the core hole from the crushing holes drilled at both ends in the width direction of the dismantling planned region. It is desirable to extrude and divide the concrete member, and to remove the divided concrete member. In this case, there are advantages that the number of perforations can be reduced and the width of the opening can be set variously.
  • step (a) it is also desirable that a plurality of core holes form a continuous core hole that is continuous over the entire width of the planned dismantling region. This has the advantage that a narrow opening can be formed.
  • the concrete member is preferably a pressure-resistant panel of a structure.
  • the work is performed in a narrow space, and the periphery of the planned dismantling area is also restricted, so that the dismantling method according to the present invention is particularly effective.
  • the step (a) of forming a groove along the width direction of the planned dismantling area below the planned dismantling area of the plate-shaped concrete member in the vertical direction, and a hole drilled above the groove A step (b) in which pressure is applied from a crushing hole by a hydraulic crusher and the concrete member is pushed downward to divide the concrete member, and the step (b) is repeated, and the concrete member in the planned dismantling region Is a disassembling method characterized in that is divided in order from the bottom.
  • the disassembling method of the second invention it is possible to dismantle a plate-shaped concrete member in the vertical direction such as a wall body with a small number of perforations without using a large heavy machine.
  • pressure is applied from the crushing hole above the groove, the concrete member is pushed down and divided, so when the divided concrete member settles under its own weight, cracks spread and secondary crushing by nibbles etc. becomes easy, The workability is improved without the hydraulic crusher being lost.
  • the concrete member can be pushed out in the intended direction, preventing unnecessary cracks from occurring in the surrounding concrete member, and easy crushing control become.
  • the concrete member is an underground wall connected to an underground pillar or an underground beam, and the demolished area of the underground wall is demolished, and then the underground pillar or the underground beam is demolished.
  • the underground wall is demolished, the ground behind it can be removed, and by removing the underground pillars and beams using the space after the ground is removed, the workability of demolishing the underground structure is improved.
  • the pressure platen 105 has a thickness of 650 mm and the width 9 of the planned dismantling area 3 is about 1 m, the distance 7 between the openings 5 is about 5 m, and the width 8 of the openings 5 is 0.5 m or more and 1 m.
  • the range is as follows.
  • FIG. 2 is a plan view in the vicinity of a region where the opening 5 is formed (hereinafter referred to as an opening region).
  • a continuous core hole 19 is formed at the center of the opening region, and a plurality of crushing holes 21 are formed around the continuous core hole 19.
  • the continuous core hole 19 is formed by drilling a plurality of core holes continuous in the length direction (corresponding to the left-right direction in the figure, hereinafter referred to as the region length direction) of the dismantling scheduled region 3.
  • the crushing holes 21 are drilled at both ends in the width direction (corresponding to the vertical direction in the figure, hereinafter referred to as the region width direction) of the dismantling scheduled region 3.
  • the crushing hole 21 is formed on the side of the continuous core hole 19 in the region width direction.
  • the core hole or crushing hole 21 is drilled by core boring or a rock drill, and penetrates the pressure platen 105 in the thickness direction.
  • the diameter of one hole shall be about 100 mm, it is not restricted to this.
  • the concrete member in the opening area is divided using a hydraulic crusher.
  • the hydraulic crusher applies pressure to a concrete member to generate a crack, and divides and crush the concrete member.
  • FIG. 3A shows an example of the hydraulic crusher 15.
  • the wedge liner 17 at the tip of the hydraulic crusher 15 is inserted into the crushing hole 21, and as shown in the right diagram of FIG. Is pushed by hydraulic pressure to spread the wedge liner 17 on both sides. Then, pressure can be applied to the concrete member from the crushing hole 21.
  • the hydraulic crusher 15 is inserted into the crushing hole 21 on the side of the continuous core hole 19, and the wedge liner 17 is inserted in the direction connecting the crushing hole 21 and the continuous core hole 19.
  • pressure is applied to the concrete member between the crushing hole 21 and the continuous core hole 19.
  • the concrete member is pushed out in the direction of the continuous core hole 19 indicated by the arrow, and as shown in the right view of FIG. 3 (b), the concrete member has a section 23 connecting the both ends of the crushing hole 21 and the continuous core hole 19. Is divided.
  • the hydraulic crusher 15 is inserted into the crushing hole 21 shown in FIG. And as mentioned above, as shown in FIG.2 (b), the concrete member between each crushing hole 21 and the continuous core hole 19 is each extruded in the direction of the continuous core hole 19 shown by the arrow. As a result, the concrete member is divided as shown in FIG. 2 (c), and a divided section 23 is formed between both ends of each of the crushing holes 21 and the continuous core holes 19 in the region length direction.
  • FIG. 4 and 5 are plan views of the dismantling scheduled area 3.
  • the crushing holes 25 are drilled at both end portions in the region width direction of the dismantling scheduled region 3 on both sides of each opening 5 in the region length direction.
  • the hydraulic crusher 15 is inserted into the crushing hole 25, and the concrete member between the crushing hole 25 and the opening 5 is pushed out in the direction of the opening 5 indicated by the arrow.
  • the concrete member is divided as shown in FIG. 4B, and a dividing surface 27 is formed between the crushing hole 25 and both end portions of the side of the opening 5 facing the crushing hole 25. .
  • new crushing holes 25 are provided at the center in the region width direction of the dismantling scheduled region 3 on both sides in the region length direction of the opening 5. These crushing holes 25 are drilled from the opening 5 at a predetermined drilling interval.
  • the perforation interval is, for example, about 400 mm to 600 mm, and is about half the width of the dismantling scheduled area 3.
  • the hydraulic crusher 15 is inserted into these new crushing holes 25, and the concrete member between the crushing holes 25 and the dividing surface 27 at a position facing the crushing holes 25 is pushed out in the direction of the opening 5 indicated by the arrow.
  • the concrete member is divided, and a new dividing section 27 is formed between the new crushing hole 25 and the crushing holes 25 at both ends in the region width direction as shown in FIG. .
  • the concrete members are divided into about four rows, and the concrete members are divided to the center between the openings 5. Thereafter, the concrete member remaining in the central portion or the divided concrete member is secondarily crushed using a nibler or a ripper to obtain a crushed glass having a size that is easy to remove. This state is shown in FIG.
  • the divided concrete member may be removed when it accumulates to some extent.
  • the interval 7 and the width 8 of the opening 5, the shape, the size of the continuous core hole 19, the number and positions of the crushing holes 21 and 25 are not limited to the above, and the size and introduction of the planned dismantling area 3 can be made. It is possible to plan optimally according to the size and performance of heavy machinery. Furthermore, although the drilling of the crushing holes 25 and the partitioning of the concrete member are repeated in the example of the figure, depending on the case, it is possible to drill all the necessary crushing holes 25 in advance.
  • region 13 in the meantime is parted and crushed.
  • the process of applying pressure from the crushing holes 25 perforated at appropriate positions to push the concrete member in the direction of the opening 5 and dividing it is repeated, and the dividing is performed in order from each opening 5 side.
  • a large heavy machine is not required, the number of drilling holes in the member is small, the work is easy, and the cost and work period can be reduced.
  • work can be performed in a narrow underground area, and there are few problems of noise and vibration.
  • the concrete member can be divided with a smaller working pressure than the conventional method of crushing members in a straight line connecting a large number of holes at a time, problems such as scattering of members do not occur.
  • the concrete member when one opening portion 5 is formed and the concrete member is repeatedly extruded toward the opening portion 5, extrusion of about four rows is the limit. Therefore, in this embodiment, after forming a plurality of openings 5 first, the concrete member in the intermediate region 13 is pushed out to the openings 5 on both sides and divided in order from each opening 5 side. The region where the member can be divided is lengthened. Thereby, the dismantling of the planned dismantling area 3 can be efficiently performed with less replacement of heavy machinery or the like.
  • the heavy equipment etc. which are common at the time of the division
  • the application target of the present invention is not limited thereto.
  • the present invention can be applied to the dismantling of various concrete members such as wall bodies such as outer walls, earth pressure walls, and temporary continuous walls, slabs, foundations, etc., centering on plate-like members.
  • Various shapes of the planned dismantling area 3 are also conceivable.
  • the pressure platen 105 is dismantled, the work is performed in a narrow space, and the periphery of the planned dismantling area 3 is also constrained, so that the dismantling method according to the present invention is particularly effective.
  • each embodiment is an example different from the first embodiment in the method of forming the opening 5, and the other points are the same as those in the first embodiment. To do.
  • FIG. 6 is a view showing the crushing hole 33 in the opening area
  • the upper figure is a plan view in the vicinity of the opening area
  • the lower figure is a cross-sectional view along the line AA in the upper figure.
  • the crushing hole 33 includes a crushing hole 33a and a crushing hole 33b.
  • the crushing hole 33a is formed by drilling obliquely downward toward the central portion from the vicinity of both sides of the central portion in the region length direction of the opening region.
  • the crushing hole 33a is drilled at a shallow position of the pressure platen 105.
  • the pair of crushing holes 33a in the region length direction are at positions corresponding to the bottoms, and these are provided in a substantially V shape in the vertical plane.
  • the crushing holes 33b are formed by drilling diagonally downward from both ends in the region length direction of the opening region toward the center.
  • the crushing hole 33 b is drilled to a deep position of the pressure platen 105.
  • the pair of crushing holes 33b in the region length direction are at positions corresponding to the bottoms, and these are provided in a substantially V shape in the vertical plane.
  • the concrete member is divided and crushed using the hydraulic crusher 37 shown in FIG.
  • This hydraulic crusher 37 has a rod-like main body 38 provided with a projecting portion 39 that can be advanced and retracted. As shown in the left diagram, the hydraulic crusher 37 is inserted into the crushing hole 33 with the projecting portion 39 retracted, and is As shown, by projecting the projecting portion 39 by hydraulic pressure, pressure can be applied to the concrete member to extrude it, thereby generating a crack.
  • FIG. 8 is a diagram for explaining the division of the concrete member in the opening region.
  • 8A to 8C are plan views in the vicinity of the opening region, and the lower diagram is a cross-sectional view taken along line BB in the upper diagram.
  • the hydraulic crusher 37 is inserted into each of the crushing holes 33 a shown in FIG. 6, and the protruding portion 39 is protruded toward the surface of the pressure platen 105. Then, the concrete member in the region surrounded by the crushing holes 33a is pushed out in the direction of the surface of the pressure platen 105, and is divided at the dividing surface 34 shown in FIG.
  • the hydraulic crusher 37 is inserted into each of the crushing holes 33b, and the concrete member in the region surrounded by the crushing holes 33b is pushed out toward the surface of the pressure platen 105 in the same manner as described above. Then, the concrete member is divided at a new dividing section 34 shown in FIG.
  • the continuous core hole 19 is formed as in the first embodiment to secure a moving space for the concrete member.
  • the concrete member is extruded from the plurality of crushing holes 33a or crushing holes 33b at the same time.
  • the hydraulic crusher 37 shown in FIG. 7 is used, but the hydraulic crusher 15 shown in FIG. 3A can also be used.
  • the hydraulic crusher 15 shown in FIG. 3A can also be used in the first embodiment. The same applies to the following embodiments.
  • a large-diameter core hole 41 having a diameter over the entire width of the planned dismantling region 3 is drilled to form the opening 5.
  • a small punching machine such as a BG machine can be used.
  • the concrete member in the intermediate region 13 is divided by the same method as in the first embodiment, and the dismantling scheduled region 3 of the pressure platen 105 can be disassembled.
  • the opening 5 can be easily formed only by drilling one core hole 41.
  • a core hole 51 having a medium diameter smaller than the entire width of the planned dismantling area 3 is drilled using a BG machine or the like. Further, the crushing holes 53 are drilled on both sides of the core hole 51 in the region width direction. The crushing holes 53 are provided at both ends in the region width direction of the dismantling scheduled region 3.
  • the number of drilling operations can be reduced, and the diameter of the core hole 51 can be changed to vary the width of the opening 5.
  • the opening 5 is formed by forming the continuous core hole 61 continuous over the entire width of the planned dismantling region 3.
  • the continuous core hole 61 is formed by drilling a plurality of core holes continuous in the region width direction.
  • the concrete member in the intermediate region 13 is divided by the same method as in the first embodiment, and the dismantling scheduled region 3 of the pressure platen 105 can be disassembled.
  • the opening 5 is formed by the continuous core hole 61, it is effective when the narrow opening 5 is formed.
  • the opening 5 is thin, if the concrete member in the intermediate region 13 is divided as in the first embodiment, there may be no place where the claw portion can be inserted when secondary crushing with a nibler. It is desirable to use a ripper for the next crushing. In this case, it is sufficient if the width of the opening 5 can be secured about 200 mm to 300 mm.
  • FIG. 12 is a diagram showing an underground structure 71 that is dismantled by the dismantling method according to the sixth embodiment of the present invention.
  • 12A is a front view of the underground structure 71
  • FIG. 12B is a vertical section of the underground structure 71
  • FIG. 12C is a horizontal section of the underground structure 71.
  • 12B is a cross-sectional view taken along line CC in FIG. 12A
  • FIG. 12C is a cross-sectional view taken along line DD in FIG.
  • the underground structure 71 is a structure constructed of concrete members such as walls 73, columns 75, beams 77, etc., constructed underground.
  • the periphery of the wall 73 (underground wall), which is a plate member in the vertical direction, is connected to a column 75 (underground column) and a beam 77 (underground beam) and restrained.
  • a slit-like groove 79 in a substantially horizontal direction is formed below the dismantling scheduled area 73a of the wall 73.
  • the groove 79 is formed, for example, by continuously drilling a plurality of holes, but is not limited thereto. Further, the inner surface of the groove 79 is exposed to the outside and becomes a free surface without restraint.
  • a crushing hole 83 is drilled above the groove 79.
  • a hydraulic crusher is installed in the crushing hole 83, and the concrete member of the wall 73 is divided using a hydraulic crusher.
  • the wedge liner 17 at the tip of the hydraulic crusher 15 is inserted into the crushing hole 83, for example, as shown in the upper diagram of FIG. And as shown in the following figure, the wedge-shaped wedge 18 is pushed in with hydraulic pressure, the wedge liner 17 is expanded up and down, and a pressure is applied to the concrete member of the wall 73 as shown by the arrow E.
  • a hydraulic crusher 37 shown in FIG. 15B can also be used.
  • the hydraulic crusher 37 is provided with the protrusion 39 that can be moved back and forth in the rod-shaped main body 38, and is inserted into the crushing hole 83 with the protrusion 39 retracted into the main body 38 as shown in the above figure.
  • the protruding portion 39 is protruded by hydraulic pressure as shown in the following figure.
  • a pressure can be applied to the concrete member of the wall 73 as shown by the arrow E as described above to generate a crack 89 in the concrete member, which can be divided.
  • FIG. 16 (b) is a diagram showing a state after a certain amount of time has passed for the divided concrete member.
  • the divided concrete member is settled by its own weight as indicated by an arrow F, and the width of the crack 89 is expanded.
  • FIG. 13C shows a state after the concrete member is divided. A divided section 87 obtained by dividing the concrete member becomes a new free surface.
  • a new crushing hole 83 is subsequently drilled next to the crushing hole 83 as shown in FIG. 13 (d), and pressure is applied in the same manner as described above using a hydraulic crusher installed in the new crushing hole 83. , Push the concrete member downward and divide it.
  • the concrete member is divided at a dividing section 87 that connects each of the new crushing hole 83, the crushing hole 83 formed previously, and the groove 79.
  • the concrete member in the lower stage of the dismantling scheduled area 73a of the wall 73 is divided as shown in FIG. Thereafter, the upper concrete member is divided in the same procedure. In this way, the concrete member in the planned dismantling area 73a is divided in order from the lower stage to the upper stage, and the concrete member in the entire dismantling scheduled area 73a of the wall 73 is divided as shown in FIG.
  • an opening 73b is formed in the planned dismantling region 73a as shown in FIG. 14 (c).
  • a nibbler claw is inserted into the crack 89 between the concrete members to bite and crush the concrete member, or the tip of the ripper is inserted into the crack 89 and vibrated to crush the concrete member.
  • the width of the crack 89 widens due to the settling of the concrete member, so that the nibbler claw and the tip of the ripper can be easily inserted and secondary crushing can be easily performed.
  • noise and vibration are small by using a small heavy machine such as a nibler or a ripper for secondary crushing.
  • the divided concrete members can be removed at an appropriate point in the dismantling procedure rather than being collectively crushed and removed as described above.
  • the concrete member is divided at the lower full width of the planned dismantling region 73a, and then the upper concrete member is divided. After the partial concrete member in the width direction of the dismantling planned region 73a is divided, The upper concrete member may be divided. By repeating this process in the width direction of the planned demolition area 73a, the concrete member in the entire demolition planned area 73a can be divided.
  • the column 75 and the beam 77 are disassembled with a wire saw, a nibra, or the like, using the space behind the underground structure 71 generated by the removal of the ground 72.
  • a nibler as shown in FIG. 17 (b)
  • the front and back surfaces of the column 75 can be grasped with the claws 91, and the column 75 can be crushed at once and crushed.
  • the beam 77 As shown in FIG. 17C, the front and back surfaces of the beam 77 can be grasped by the claws 91 and can be broken at a time.
  • the horizontal cross section of the pillar 75 can be cut at a time by the wire 93 turned to the back of the pillar 75 as shown in FIG.
  • the vertical cross section of the beam 77 can be cut at a time by the wire 93 turned behind the beam 77 as shown in FIG.
  • the wall 73 which is a plate-shaped concrete member in the vertical direction, can be disassembled with a small number of perforations without using large heavy machinery.
  • the divided concrete member settles down by its own weight, and the crack 89 spreads to facilitate secondary crushing with a nibler or the like.
  • the workability is improved without the hydraulic crusher being lost.
  • the concrete member can be pushed out in the intended direction, preventing unnecessary cracks from occurring in the surrounding concrete member, and crushing control is easy. There are also advantages.
  • the wall 73 is disassembled first, so that the ground 72 behind the wall 73 can be removed, and the columns 75 and the beams 77 can be easily disassembled using the space.
  • the workability of the 71 dismantling work is improved.
  • the procedure of dividing the concrete member by applying pressure from the crushing hole 83 is repeated, and a new crushing hole 83 is formed at an appropriate place while considering the state of crushing.
  • all the necessary crushing holes 83 can be previously drilled.
  • the number and position of the crushing holes 83 and the dismantling procedure of the dismantling scheduled area 73a are not limited to those described above. These can be set to be optimal according to the conditions of the dismantling scheduled area 73a.
  • the range of the planned dismantling area 73a is not limited to that described above.
  • only the upper half of the wall 73 may be the dismantling scheduled area 73a.
  • the groove 79 is formed below the planned dismantling region 73a, and the concrete member in the dismantling planned region 73a can be disassembled by the above procedure.
  • the object to be dismantled by dividing the concrete member using the hydraulic crusher is not limited to the wall 73 described above, and may be a plate member in the vertical direction.
  • the method for disassembling the column 75 and the beam 77 is not limited to the above.
  • the mountain retaining wall 72a exists behind the underground structure 71, and the ground 72 cannot be removed even after the dismantling planned area 73a of the wall 73 is dismantled.
  • the inner surface of the column 75 exposed by disassembling and removing 73a and the surface opposite to the inner surface can be gripped by the claw 91, and the horizontal section of the column 75 can be broken by the nibler. Also in the case of using a wire saw, as shown in FIG.
  • a core hole 75a penetrating the column 75 is drilled from the inner surface of the column 75 exposed by removing the planned disassembly region 73a, and the wire passed through the core hole 75a.
  • the horizontal section of the pillar 75 can be cut by 93. The same applies to the beam 77.
  • the column 75 or the beam 77 is bitten or cut at a time by the removal of the planned dismantling area 73a of the wall 73. It is possible to widen the area that can be done, improving the workability of dismantling work.

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Abstract

Cette invention concerne un procédé de dépose assurant la dépose aisée d'un élément en béton. Ledit procédé comprend une étape initiale consistant à former lors de la dépose d'une région à déposer en forme de bande (3) des sections d'ouverture (5) traversant la largeur tout entière d'une région à déposer (3), à des intervalles dans le sens de la longueur de la région à déposer (3). Ledit procédé comprend en outre les étapes consistant à appliquer à répétition une pression à partir d'orifices de pulvérisation (25) ménagés dans des régions intermédiaires (13) entre les sections d'ouverture (5) et pousser en force l'élément en béton dans le sens des sections d'ouverture (5) afin de casser l'élément en béton. Ledit élément en béton est séquentiellement rompu au niveau des régions intermédiaires (13) à partir du côté de chaque section d'ouverture (5).
PCT/JP2015/050904 2014-01-20 2015-01-15 Procédé de dépose WO2015108098A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SG11201605798WA SG11201605798WA (en) 2014-01-20 2015-01-15 Demolishing method

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2014007884A JP6411031B2 (ja) 2014-01-20 2014-01-20 解体方法
JP2014-007884 2014-01-20
JP2014063754A JP6411048B2 (ja) 2014-03-26 2014-03-26 解体方法
JP2014-063754 2014-03-26

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WO2015108098A1 true WO2015108098A1 (fr) 2015-07-23

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TW (1) TWI657182B (fr)
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