JP6603824B2 - Upper scattering prevention curing system and upper scattering prevention curing method at the time of multi-story building dismantling - Google Patents

Description

  The present invention relates to an upward scattering prevention curing system and an upward scattering prevention curing method at the time of demolishing a multi-level building that can be installed and adjusted relatively easily at low cost.

  As seen in urban demolition sites and the like, when a building such as a building is demolished, a temporary living body is usually provided on the outer periphery of the building to secure a working scaffold. In addition to securing a working scaffold, the temporary living body is also used to attach a shield such as a sheet that covers the entire side surface of the building to be demolished for the purpose of drop curing, prevention of dust scattering to the outside, soundproofing, etc. Sometimes.

  For example, the temporary living body is generally provided only on the side of the building being demolished, but in recent years, the building under construction on the temporary living body so that it can be operated even in rainy weather during construction. A roof that covers the top of the building has been developed to make the construction site above the building all weather. In order to install the temporary living body with the roof in this way, the frame covering scaffolding material, pipe truss material, etc., are used to cover the side of the building of the temporary living body until the lower part of the building is constructed. After that, the roof is erected.

  For example, in Patent Document 1 below, a problem to be solved is to provide a roof of a temporary living body that can perform work smoothly and safely and that can shorten the work period of temporary living body assembly. An invention covering the building of the time is disclosed. According to this, the roof of the temporary living body is provided so as to cover the building under construction and is gradually rearranged upward as the construction progresses, and the roof is defined in a direction in which the roof continues. A plurality of channel members provided at a predetermined interval, a plurality of rail members stretched between the channel members adjacent to each other in the continuous direction of the roof, and a movable member along the rail members. It is described that the frame material is composed of a plurality of frame materials extending substantially parallel to the frame material and a flexible roof sheet attached between adjacent frame materials. . However, since Patent Document 1 is an invention for providing a roof sheet for all-weather type that is required to be stacked upward during construction work, it is not intended for use at the site of demolishing a multi-storey building, Sometimes not available.

  In addition, in Patent Document 2 below, when dismantling a building using asbestos-molded plates, if the work of removing and removing the bolts one by one is performed so that the asbestos-molded plates do not break at all, The work is dangerous and takes too much time and cost, so it is impossible in practice.To reduce the cost, when demolition the building using heavy equipment such as Yumbo and hammering tools such as hammers, An invention is disclosed which aims to solve the problem that the asbestos molding plate is always broken and the asbestos contained therein is scattered around.

  According to this document, when disassembling a building in which asbestos-molded plates are used, it is possible to reliably prevent the asbestos from being scattered. When dismantling a building in which plates are used for roofs, ceilings, walls, etc., a sheet is put on a scaffold standing on the side periphery of the building, and the side periphery of the building is sealed and cured, and the asbestos It describes that the asbestos-molded plate is destroyed after spraying an anti-scattering chemical onto the molded plate.

  With such a configuration, when disassembling a building in which asbestos-molded plates are used for roofs, ceilings, walls, etc., the side periphery of the building is sealed and cured by placing a sheet on a scaffold standing on the side periphery of the building In addition, after spraying the anti-scattering chemical solution on the asbestos molding plate, it was decided to destroy the asbestos molding plate, so it was possible to dismantle the building by reducing the cost using a hitting tool such as a heavy machine or a hammer, At the time of dismantling, the asbestos molding plate is sprayed with anti-scattering chemicals to prevent scattering, and asbestos does not scatter even if the asbestos molding plate breaks. Since it is sealed and cured, it is said that asbestos does not scatter to the outside, ensuring safety and dismantling the building well.

  In addition, this also prevents the asbestos from being scattered from the windows by covering the windows of the building and the floor between the building outer periphery and the scaffold with a sheet to prevent the asbestos from scattering from the windows. It is said that it can be reliably prevented from flowing into the side groove. Furthermore, according to the following Patent Document 2, even when the asbestos molding plate is destroyed, even if the asbestos molding plate is broken during the destruction operation, the asbestos is scattered, It is described that the suspended dust of asbestos can be prevented from scattering outside. In addition, by coating the sheet with anti-scattering chemical solution on the sheet after dismantling work, there is a possibility that asbestos is also attached to the sheet for hermetic curing, so coating the sheet with anti-scattering chemical solution, It is described that scattering can be reliably prevented.

  Patent Document 3 below discloses that an tent-type roof for civil engineering works that is easy to assemble and dismantle, can be easily stored during fine weather and storms, and is used only during normal rainfall. ing. The tent-type roof is composed of one main pillar 1 standing on the ground, at least three main pillar ropes 3 arranged radially from the top of the main pillar, and a ring inserted through the main pillar 1. 2, a mountain-shaped sheet 4 in which a circular hole provided at the apex portion is joined to the outer periphery of the ring body 2, tent support ropes 5 arranged radially from the ring body along the ridge line of the sheet 4, and a main pillar rope 3 and an anchor base 9 for connecting the lower ends of the tent support ropes 5 to the ground, and a lifting device 14 for the ring body 2.

JP-A-10-131507 JP 2007-063784 A Japanese Patent Laid-Open No. 06-123174 JP 2011-017230 A

  At the time of building demolition, working time tends to be greatly restricted compared to construction, and it is often required to perform work in an extremely short time. Since the work of crushing and pulverizing with such as is essential, the curing to prevent the scattered pieces and scattered matter such as bolts from scattering is more important. Conventionally, the scattering prevention curing in this case has been made only on the side of the building to be demolished or only on the side of the extension from the viewpoint of securing the work space such as heavy equipment.

  However, in reality, shattered pieces, bolts, and the like may be scattered in the upper space. However, at the dismantling site where the dismantling floor is gradually shifted down to the lower floor while crushing sequentially from the upper floor walls and floors, it is conventional to appropriately provide anti-scattering curing above (over the head) In reality, it is extremely difficult and costly and difficult. In other words, it was practically difficult to set overhead curing to an appropriate height with respect to the dismantling work position at that time for a demolished building that collapsed from the upper floor and became increasingly lower in height. . If a dedicated support bridge pier for setting overhead curing and a dedicated scaffold for locking the curing sheet are provided, the cost and work time will be significantly increased, which is not realistic and the feet are complicated. In the dismantling site that tends to be close, such installation work is also dangerous.

  In addition, for example, dismantling scaffolds (piget scaffolding, wedge-shaped scaffolds, curing scaffolds) provided on the outer wall surface for workers, etc. are easy to assemble / withdraw, assuming that they support human weight and lightweight tools. Since it is a temporary scaffold, it does not naturally have a supporting force for locking the ceiling roof curing sheet to the sheet and stretching the sheet over the entire ceiling. In particular, in medium- and large-sized multi-storey buildings and the like, generally, the floor area is large, and the distance and the distance between the side walls are large, so that such correspondence is impossible.

  In addition, it is conceivable to use the pillars remaining in the building as intermediate struts to support the overhead curing sheet. Since it is necessary to adjust and remove the curing sheet, it is dangerous and requires a lot of time and labor. Furthermore, the lifting platform in this case will be assembled from the demolition floor, and it is actually impossible to secure the passage on the demolition work floor where heavy machinery, demolition tools, workers etc. exist and carry the lifting platform to the pillar and assemble it. It is extremely difficult. Also, when dismantling the pillar itself, the pillar cannot be used as a support for supporting the curing sheet, and its height is difficult to adjust. I can't.

  In addition, it is possible to prevent and reduce the soaring of dust, etc. to some extent by sprinkling water to the crushing location, etc., but it is included in relatively large shredded fragments and the like due to crushing and demolition work such as reinforced concrete. Metals such as bolts and nuts can be considered to be splashed and scattered obliquely upward while obtaining impact energy for crushing and crushing.

  The present invention has been made in view of the above-mentioned problems, and is suitable for the progress of demolition, which is relatively inexpensive and easy and safe with less labor, and is suitable for the progress of demolition. It is intended to realize an upward scattering prevention curing system and an upward scattering prevention curing method that can be installed in the vehicle. It is also an object of the present invention to propose an upward scattering prevention curing system, an upward scattering prevention curing method, and the like at the time of demolishing a multi-story building that can sufficiently secure a working space for heavy machinery operation and demolition work.

  The upper scattering prevention curing system of the present invention is an upper scattering prevention curing system that prevents scattering of crushed materials to the upper side of the dismantling floor when dismantling a multi-storey building, and is disposed across the dismantling floor and its lower floor. Curing sheet support column insertion hole, curing sheet support column inserted into the curing sheet support column insertion hole and protruding upward from the dismantling floor, and a scattering prevention curing sheet supported on the top of the curing sheet support column And.

  The upper scattering prevention curing method of the present invention is an upper scattering prevention curing method using the upper scattering prevention curing system described above, and is inserted into the curing sheet support column insertion hole and protruded upward from the dismantling floor. By further deepening the insertion of the curing sheet support pillar, the arrangement height of the scattering prevention curing sheet is adjusted.

  It is possible to realize an anti-scattering curing system and an anti-scattering curing method that can be installed appropriately according to the progress of demolition, and can be easily installed with relatively low cost and with little effort. .

(A) is a top view explaining the state which observed the scattering prevention curing sheet installed in the multi-storey building concerning this embodiment from the sky, (b) The curing sheet support pillar insertion hole provided in the dismantling floor It is a figure which shows the relationship with the curing sheet support pillar inserted and, and (c) is side sectional drawing explaining the state which observed the multi-storey building which installed the scattering prevention curing sheet from the side, (d) FIG. 4 is a diagram for explaining an example in which three support columns each having a length of 6000 mm are connected and extended to have a total length of 18000 mm as a typical configuration example of a curing sheet support column. It is a figure explaining the procedure which installs the scattering prevention curing sheet of this embodiment in a multi-storey building. It is a figure explaining the procedure which installs the scattering prevention curing sheet of this embodiment in a multi-storey building. It is a figure explaining the procedure which installs the scattering prevention curing sheet of this embodiment in a multi-storey building. It is a figure explaining the procedure which descends a scattering prevention curing sheet using a heavy machine in the case of progress to a lower floor of a dismantling floor accompanying progress of dismantling work. It is a figure explaining the procedure which descends a scattering prevention curing sheet by manual work in the case of progress to a lower floor of a demolishing floor accompanying progress of a demolishing work. It is a figure explaining the procedure which descends a scattering prevention curing sheet by manual work in the case of progress to a lower floor of a demolishing floor accompanying progress of a demolishing work. It is a schematic diagram explaining the demolition work of a multi-storey building. It is a figure explaining the dismantling operation | work of a multi-storey building further in detail. It is a figure explaining the dismantling operation | work of a multi-storey building further in detail. It is a figure explaining the dismantling operation | work of a multi-storey building further in detail. It is a figure explaining the dismantling operation | work of a multi-storey building further in detail. It is a figure explaining the state which temporarily fixes the H steel inserted and lowered to the curing sheet support column insertion hole with a fire striking material. It is a figure explaining the operation | work which forms H steel insertion slot by a cross section. It is a figure explaining the work of fixing H steel piece by a section compared with the process execution photograph concerned, and explains the work corresponding to Drawing 3 (a). It is a figure explaining installation work, such as a wire, with a section compared with the process execution photograph concerned, and explains work corresponding to Drawing 4 (a). The operation corresponding to FIG. 10A will be described with reference to a cross-sectional view of the so-called look-up slab dismantling operation for dismantling the floor at a higher position than the floor where the heavy machinery is installed, in contrast to the process execution photograph. Is. It is a figure explaining the attachment operation | work of a chain block etc. with a cross section compared with the said process implementation photograph, Comprising: The operation | work corresponding to FIG.6 (e) is demonstrated. It is a figure explaining the steel steel lowering work by a cross-section in contrast with the process execution photograph, and the work corresponding to FIG. It is a figure explaining the H steel lowering work by an operator by a cross section in contrast with the process execution photograph, and explains the work corresponding to FIG. It is a figure explaining the piece fixing work in a cross section in comparison with the process execution photograph, and is a work corresponding to FIG. 7B. It is a figure explaining the typical example of the crushing heavy machine of a short reach. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure explaining the field of embodiment, (a) is a figure explaining the chain block attachment operation | work by an operator, (b) demonstrates the installation operation | work of the fire striking material (diagonal reinforcement) by an operator. (C) thru | or figure (d), (f), (h), (i) perform the crushing operation | work by a heavy machine in the state which stretched the curing sheet | seat of this embodiment on the head, respectively. (E) is a diagram for explaining the work of lowering the H steel using a chain block by an operator, and (g) is securely fixed to the floor with a fired material (diagonal reinforcing material). It is a figure explaining H steel, and H steel is a figure explaining the state which has penetrated the said floor below. It is a figure explaining the field situation which is performing the trial experiment of the demolition work of the building by a crusher (short reach) in the state where the curing sheet of this embodiment was stretched over the head. It is a figure explaining the field situation which is performing the trial experiment of the demolition work of the building by a crusher (short reach) in the state where the curing sheet of this embodiment was stretched over the head. It is a figure explaining the field situation which is performing the trial experiment of the demolition work of the building by a crusher (short reach) in the state where the curing sheet of this embodiment was stretched over the head. It is a figure explaining the field situation which is performing the trial experiment of the demolition work of the building by a crusher (short reach) in the state where the curing sheet of this embodiment was stretched over the head.

  At the site of building demolition, care must be taken to prevent the occurrence of flying objects, especially when the building is close to private houses, sidewalks, roadways or tracks. In recent years, safety awareness and attention are increasing socially, and it is desirable to avoid any damage caused by flying objects such as injuries to nearby persons and nearby traffic. In addition, if the scattered objects are scattered on the track from the dismantling site in the vicinity of the track such as the Shinkansen, the Shinkansen will be stopped and the safety check confirmation work will be carried out after that. It can be said.

  In the upper scattering prevention curing system described in the present embodiment at the time of dismantling the multi-story building, a curing sheet support pillar insertion hole of a predetermined size is provided for each of the dismantling floor and its lower floor, and the curing sheet support is provided. Insert the curing sheet support column into the column insertion hole. The curing sheet support column can be formed by connecting and stretching a plurality of (typically, 6000 mm × 3) H steels, for example. Further, the curing sheet support column insertion hole has a size (for example, 400 mm × 400 mm rectangle) such that the inserted curing sheet support column can move in the vertical direction and is not too large than the diameter of the curing sheet support column.

  Curing sheet support pillars are inserted into the respective curing sheet support pillar insertion holes provided on the dismantling floor and the lower floors respectively, and are fixedly supported at the insertion locations, so that the curing sheet support pillars can be stably moved upward from the dismantling floor. Only a predetermined height is provided. And the curing sheet support pillar provided in this way is used as a support pillar for supporting the anti-scattering curing sheet stretched over the entire head of the dismantling floor.

  Even if the dismantling progresses sequentially from the upper floor and the dismantling floor changes to the lower floor sequentially, the curing sheet supporting pillar insertion hole in the lower floor is further maintained. And is supported and fixed by at least two hole portions that are sequentially lowered and spaced apart from each other. Therefore, the curing sheet support column is not only extremely stably projected, but can be easily changed in height in the vertical direction while maintaining the state where the anti-scattering curing sheet is locked to the top of the head. Become.

  In addition, when the demolished floor reaches a lower floor such as the ground floor, the curing sheet support pillar is lowered to the basement using the curing sheet support pillar insertion hole provided in the underground floor if there is an underground floor. It is also possible. Furthermore, the curing column support pillars have a protruding height in the vicinity of the ground floor, for example, by adding H steel and removing the number from the lower side (the ground side) to reduce the number of the curing sheet while keeping the scattering prevention curing sheet on the top of the head. It is also possible to adjust.

  Thus, the upward scattering prevention curing system described in the present embodiment maintains the state in which the scattering prevention curing sheet is supported at the top of the curing sheet support column, while the height of the curing sheet support column is raised. Can be adjusted and changed freely according to the dismantling progress. For this reason, it is not necessary for the operator to go up and down to the top of the curing sheet support column one by one in response to a change in the dismantling floor, and to perform adjustment work such as mounting, and the height adjustment is performed quickly and safely to prevent scattering Work etc. become possible. The operator only needs to perform the dismantling work at the beginning and end of the dismantling work at once at the beginning and the end of the work. . Therefore, further detailed description will be given below based on the drawings.

  FIG. 1A is a plan view illustrating a state where the anti-scattering curing sheet 4000 installed in the multi-storey building 1000 according to this embodiment is observed from above, and FIG. 1B is provided on the dismantling floor 1100. It is a figure which shows the relationship between the curing sheet support pillar insertion hole 3500 and the curing sheet support pillar 3000 inserted. In FIG.1 (b), H steel of H250mm is shown as a typical example of the curing sheet support pillar 3000. FIG.

  Moreover, FIG.1 (c) is side sectional drawing explaining the state which observed the multi-storey building 1000 which installed the scattering prevention curing sheet 4000 from the side, FIG.1 (d) is the curing sheet support pillar 3000 of FIG. As a typical configuration example, it is a diagram illustrating an example in which three support columns each having a length of 6000 mm are connected and stretched to have a total length of 18000 mm.

  Curing sheet support column 3000 is not limited to the H steel illustrated in FIG. 1, and any bar-like body that can support scattering prevention curing sheet 4000 may be used. Further, the number of connections is not limited to three, and any number of connections can be added to form an arbitrary length. Further, the curing sheet support column insertion hole 3500 is not limited to the shape and size illustrated in FIG. 1, and can have any shape and size within the scope of the technical idea of the present invention.

  As shown in FIG. 1, a roof sheet (RFL) of a multi-storey building 1000 is used as a dismantling floor 1100, and a curing sheet supporting column is formed in a total of six rectangular shapes with respect to the dismantling floor 1100 and its lower floors 1200 (5FL). Insertion holes 3500 are provided, and curing sheet support columns 3000 (1) to 3000 (6) (hereinafter collectively referred to as curing sheet support columns 3000 as appropriate) are protruded 8 m upward from the dismantling floor 1100. In this example, since the curing sheet support pillar 3000 is configured to be 18 m, it is in a state of diving 10 m below the dismantling floor 1100.

  For this reason, as shown in FIG. 1, the curing sheet support pillar 3000 reaches the lower floor 1200 (5FL) and further below the lower floor 4FL, and in each floor, the curing sheet support pillar insertion hole is provided. 3500 is provided and inserted. Moreover, as shown in FIG. 1, the temporary scaffolding 2000 is installed along the circumference | surroundings of the side wall so that the circumference | surroundings of the multi-storey building 1000 which should be demolished may be enclosed.

  In FIG. 1, the scattering prevention curing sheet 4000 is locked to the top of the curing sheet support column 3000, and a part of the load is supported by the curing sheet support column 3000. Moreover, the edge part of the scattering prevention curing sheet 4000 is locked to the temporary scaffold 2000, and the locking height is preferably lower than the locking height to the top of the curing sheet support column 3000. .

  Thereby, since the load and tension | tensile_strength applied to the temporary scaffold 2000 from the scattering prevention curing sheet 4000 are reduced, the scattering prevention curing sheet 4000 can be stably hold | maintained safely. In FIG. 1 and the like, for convenience of explanation, the multi-storey building 1000 is shown as a five-story building and does not have a basement floor. However, the present invention is not limited to this. The building may have a basement floor.

  Further, as shown in FIG. 1, a wire 6000 is stretched between the curing sheet support columns 3000 so as to form a rectangular side, and the scattering prevention curing sheet 4000 is supported by the wire 6000. In addition, the wire 6000 is from the curing sheet support columns 3000 (3) and 3000 (4) shown in FIG. 1A to the left temporary scaffolding 2000, and from the curing sheet support columns 3000 (1) and 3000 (6). The right-side temporary scaffolding 2000 is also stretched, and the structure for supporting the scattering prevention curing sheet 4000 is illustrated.

  Further, in FIG. 1, reference numeral 5000 denotes a support square support, and a falling wall due to dismantling work is provided between floors (between 5FL and 4FL, between 4FL and 3FL, between 3FL and 2FL, etc.). It has a function to support it so that it does not occur.

  FIG. 2 thru | or FIG. 4 is a figure explaining the procedure which installs the scattering prevention curing sheet 4000 of this embodiment shown in FIG. 1 in the multi-storey building 1000. FIG. In all the following drawings, portions corresponding to those in FIG. 1 are denoted by the same reference numerals and description thereof is omitted. In FIG. 2A, the curing sheet that serves as an insertion port for the curing sheet support pillar 3000 from the roof floor (RFL), which is the dismantling floor 1100 of the multi-storey building 1000, to all the lower floors (5FL to 2FL). Support column insertion hole 3500 is provided manually. In the example of FIG. 2, the corresponding curing sheet support column insertion holes 3500 on each floor are arranged in the vertical direction. It is preferable from the viewpoint of safety that the curing sheet support column insertion hole 3500 is temporarily closed thereafter with a floor plate or the like.

  Next, as shown in FIG. 2 (b), the curing sheet support pillar 3000 is lifted by a crane located on the dismantling floor 1100 and lowered vertically from the curing sheet supporting pillar insertion hole 3500 of the dismantling floor 1100. In this case, since it may be difficult to lift and lower the completed length 18 m of the curing sheet support column 3000, it is preferable to first insert and lower the 6 m support column alone.

  Next, as shown in FIG. 2 (c), the temporary support sheet of 6m inserted vertically downward from the curing sheet support pillar insertion hole 3500 of the dismantling floor 1100 is protruded about 1m from the dismantling floor 1100 in a temporary manner. Stop. For the fixing in this case, for example, a fired material (an oblique reinforcing material) as shown in FIG. 13 can be used. FIG. 13 is a diagram for explaining a state in which the H steel that has been inserted and lowered into the curing sheet support column insertion hole 3500 is temporarily fixed with the fire-blasting material 3600.

  Next, as shown in FIG. 2 (d), the second support pillar (for example, 600 mm long) is lifted on the support pillar protruding from the dismantling floor 1100 by about 1 m with a crane. Connect as illustrated. Thereby, the curing sheet support pillar 3000 at this time becomes 1200 mm with 600 mm × 2.

  Then, as shown to Fig.3 (a), after releasing the fire striking material 3600 from the curing sheet support pillar 3000 used as 1200 mm, it is further lowered | hung using a crane. Then, again, a 12 m support column inserted vertically downward from the curing sheet support column insertion hole 3500 of the dismantling floor 1100 is temporarily temporarily fixed using the fire striking material 3600 in a state of being protruded about 1 m from the dismantling floor 1100.

  Next, as shown in FIG. 3 (c), a third support column (for example, 600 mm long) is lifted on a support column that protrudes about 1 m from the dismantling floor 1100 with a crane. Connect as illustrated. Thereby, the curing sheet support pillar 3000 at this time becomes 1800 mm with 600 mm × 3. And in FIG.3 (d), after temporarily fixing the curing sheet | seat support pillar 3000 with the fire striking material 3600 in the lower floor 1200 (5FL) below the dismantling floor 1100 and preferably the lower floor (4FL), The fired material 3600 on the dismantling floor 1100 is released.

  Although it is considered that the fire-blasting material 3600 of the dismantling floor 1100 may remain from the viewpoint of more stably holding the curing sheet support pillar 3000, the dismantling floor 1100 has a lot of dust, crushed pieces, Since scattered matters are often generated and complicated, it is preferable to withdraw in order to secure a safer and wider working space. Further, in the subsequent work of stretching the anti-scattering curing sheet 4000, the worker moves up and down with a scaffolding in the vicinity of the curing sheet support pillar 3000 of the dismantling floor 1100, so the fired material 3600 in this place is removed. It is preferable to keep it.

  Next, in FIG. 4A, a rolling tower (worker scaffold) is assembled along the curing sheet support pillar 3000 of the dismantling floor 1100, and, for example, a rectangular side is formed between the tops of the curing sheet support pillars 3000. Wire 6000 as you do. And in FIG.4 (b), the scattering prevention curing sheet 4000 is attached to the top part of the said wire 6000 and the curing sheet support pillar 3000. FIG. In this case, a lever block (registered trademark) (tension device) can be used as a tool for stretching the wire 6000 and the scattering prevention curing sheet 4000. Moreover, the scattering prevention curing sheet 4000 can be, for example, a mesh sheet, and a 5 mm mesh Dionet (registered trademark) can also be used. The wire 6000 is preferably stretched from the outermost curing sheet support pillars 3000 to the temporary scaffolding 2000 as well.

  Moreover, FIG. 5 is a figure explaining the procedure which descends the scattering prevention curing sheet 4000 using a heavy machine in the progress to the lower floor of the dismantling floor 1100 accompanying the progress of the dismantling work. As shown in FIG. 5 (a), (1) the wire 6000 and the scattering prevention curing sheet 4000 are loosened by a lever block or the like, (2) all of the fired material 3600 is withdrawn, and (3) the curing sheet support column 3000 is 16 mm, for example. It is lowered while hanging using 5m x 2 wires.

  Further, as shown in FIG. 5 (b), (4) one of the fire striking materials 3600 removed in the procedure (2) is installed on the lower floor to temporarily fix the curing sheet support pillar 3000, and then (5) The curing sheet support column 3000 is again tensioned and stretched by a lever block or the like. In addition, the latching location to the temporary scaffold 2000 can be latched in the lower position more manually.

  That is, according to this method, when the installation height of the anti-scattering curing sheet 4000 is lowered, the height of the anti-scattering curing sheet 4000 itself is not adjusted independently, and the cured curing sheet supporting column is locked. 3000 is lowered as a whole as a whole. For this reason, it is not necessary to perform the anti-scattering curing sheet 4000 locking operation at a high position each time, and it is extremely simple, quick and safe. 5C is an enlarged view of the lowering operation of the curing sheet support column 3000 by a heavy machine, and FIG. 5D is the curing sheet support column 3000 inserted into the curing sheet support column insertion hole 3500. Is explained. As illustrated in FIG. 5 (d), H steel is H250, and the weight may be 80kg per support column, or three may be connected and the entire curing sheet support column 3000 may be 1.36t. Good.

  6 and 7 are diagrams illustrating a procedure for manually lowering the anti-scattering curing sheet 4000 when proceeding to the lower floor of the dismantling floor 1100 accompanying the progress of the dismantling work. In FIG. 6 (a), a frame scaffold (tachima) is assembled along the curing sheet support column 3000, and in FIG. 6 (b), the fired material is applied to the curing sheet support column 3000 below the dismantling floor 1100 (the ceiling portion of the lower floor 1200). 3600 is fixed. As a result, when the fire-blasting material 3600 of the ceiling part has reached the floor surface of the floor, it is lowered by the height corresponding to the floor, and it is lowered by the equivalent of one floor without having to measure the height one by one. Can be made.

  Then, in FIG. 6 (c), the fired material 3600 on the dismantling floor 1100 and the lower floor 1200 is released. Here, FIGS. 6D and 6E are detailed views for explaining a configuration in which the chain block is suspended from the upper floor along the H steel, which is an example of the curing sheet support pillar 3000, by a square pipe.

  Subsequently, as shown in FIG. 7A, the worker lowers the curing sheet support pillar 3000 using the chain block. At this time, the wire 6000 and the anti-scattering curing sheet 4000 are attached to the top of the curing sheet support column 3000, but it is preferable to slightly lower these tensions and then lower the tension. Subsequently, as shown in FIG. 7 (b), the fire striking material 3600 is fixed on the lower floor 1200 below the dismantling floor 1100 and further on the lower floor. In addition, FIG.7 (c) is an enlarged view explaining the descent | fall operation | work of the curing sheet support pillar 3000 by the worker using a 1.6t chain block.

  FIG. 8 is a schematic diagram illustrating the dismantling work of the multi-storey building 1000, and FIGS. 9 to 12 are diagrams illustrating the dismantling work of the multi-storey building 1000 in more detail. 8A, first, after dismantling the outer wall standing on the dismantling floor 1100 (RFL) of the multi-storey building 1000, the dismantling floor 1100 itself that is the floor surface is dismantled by crushing or the like.

  Next, in FIG. 8B, the height of the temporary scaffold 2000 is configured to be lower by one floor, and then the curing sheet support pillar 3000 is lowered toward the lower level. Along with this, the height of the anti-scattering curing sheet 4000 can also be lowered. Next, after dismantling the outer wall of the new dismantling floor 1100 (5FL), the floor (5FL) is dismantled.

  Subsequently, in FIG. 8C, the height of the temporary scaffold 2000 is configured to be lower by one floor, and then a new support column is connected to the lower end of the curing sheet support column 3000 to make it longer, and the curing sheet support column 3000 Is lowered downstairs. Along with this, the height of the anti-scattering curing sheet 4000 can also be lowered. Next, after dismantling the outer wall of the new dismantling floor 1100 (4FL), the floor surface (4FL) is dismantled.

  Subsequently, in FIG. 8D, the height of the temporary scaffold 2000 is configured to be equivalent to one floor, and then the curing sheet support pillar 3000 is lowered toward the lower level. Along with this, the height of the anti-scattering curing sheet 4000 can also be lowered. Next, after dismantling the outer wall of the new dismantling floor 1100 (3FL), the floor (3FL) is dismantled. And finally, when the scattering prevention curing sheet 4000 is unnecessary, the curing sheet support pillar 3000 can be withdrawn.

  In FIG. 8, since the height to the ceiling of 2FL is higher than the other floors, the height interval between 2FL and 3FL is longer than the height interval of the other floors. Even in such a case, the length of the curing sheet support column 3000 can be adjusted by adding and connecting a new support column so that it can be adjusted to reach the curing sheet support column insertion hole 3500 on the lower floor and be supported. It is. 9 to 12 are clear from the description of each drawing and will be omitted here because they overlap with FIG.

(About the height relationship between the crusher and the curing sheet)
As shown in FIG. 10 (b) and the like, the height of the curing sheet is preferably set so that the heavy machine for performing the crushing operation such as a crusher and the curing sheet thereabove are always 8m to 10m in height. adjust. In other words, the height of the curing sheet is adjusted so that it is always the predetermined height from the floor where the heavy machinery is actually placed, regardless of the floor to be crushed, rather than the predetermined height with respect to the floor currently being crushed. It is preferable to do.

  The lower the height of the curing sheet, the better from the viewpoint of preventing scattering, that is, the closer to the floor to be crushed, the better. It becomes difficult. For this reason, it is preferable to arrange the curing sheet at a minimum height that can secure only the work space of the heavy machinery.

  In reality, the height for securing such a work space largely depends on the height from the floor on which the heavy machinery is arranged, rather than being determined by the crushing target floor or the crushing target location. More specifically, depending on the length of the work arm of the heavy machinery, a space is required for the arm to move and operate according to the work process.

  Accordingly, by setting the height of the curing sheet so as to always secure a height space of about 8 to 10 m from the arrangement floor of the heavy equipment that performs the crushing work etc., the crushing work by the heavy equipment can be performed on the arrangement floor. However, as shown in FIG. 10 (b) and FIG. 12 (c), even the upper floor can be smoothly performed. From this point of view, it is preferable to use a short reach type heavy machine with a short length per arm as a heavy machine for performing the crushing operation. Short reach specification heavy machinery can shorten the arm and increase the number of arms, and can perform good work while avoiding contact and collision to the surroundings even in a relatively small space . (See Figure 22)

  14 is a diagram for explaining the operation of forming the H steel insertion slot in section, and FIG. 15 is a diagram for explaining the task of fixing the H steel piece in section in comparison with the process execution photograph. The work corresponding to (a) will be described. Here, as is clear from the description of the drawings, the piece means an H steel fixing member such as a fired material (an oblique reinforcing material), for example. Moreover, FIG. 16 is a figure explaining the installation operation | work of a wire etc. with a cross section contrasting with the said process implementation photograph, Comprising: The operation | work corresponding to Fig.4 (a) is demonstrated. FIG. 17 is a diagram for explaining in cross section the so-called look-up slab dismantling operation for disassembling the floor at a higher position than the floor on which the heavy machinery is installed. The corresponding work is described.

  Moreover, FIG. 18 is a figure explaining the work of attaching a chain block or the like in a cross section in comparison with the process execution photograph, and explains the work corresponding to FIG. 6 (e). FIG. 19 is a cross-sectional view illustrating the H steel lowering operation in comparison with the process execution photograph, and illustrates the operation corresponding to FIG. Moreover, FIG. 20 is a figure explaining the steel steel lowering work by an operator in a cross section in comparison with the process execution photograph, and explains the work corresponding to FIG. 7 (c). FIG. 21 is a diagram for explaining the piece fixing operation in a cross section in contrast to the process execution photograph, and illustrates the operation corresponding to FIG. 7B. FIG. 22 is a diagram illustrating a typical example of a short reach crushing heavy machine.

  Moreover, FIG. 23 is a figure explaining the field of embodiment, FIG. 23 (a) is a figure explaining the chain block attachment operation | work by an operator, FIG. FIG. 23 (c) to FIG. 23 (d), FIG. 23 (f), FIG. 23 (h), and FIG. 23 (i) are each implemented above the head. It is a figure explaining the state which is performing the crushing operation | work with a heavy machine in the state which stretched the curing sheet | seat of the form. FIG. 23 (e) is a diagram for explaining the lowering work of the H steel using the chain block by the worker, and FIG. 23 (g) is securely fixed to the floor with a fire striking material (diagonal reinforcing material). It is a figure explaining H steel, and H steel is a figure explaining the state which has penetrated the said floor below.

  FIG. 24 to FIG. 27 are diagrams for explaining a field situation where a trial experiment is performed on a building dismantling operation using a crusher (short reach) in a state where the curing sheet of the present embodiment is stretched over the head.

  The anti-scattering curing system of the present invention is not limited to the description in the above-described embodiment and the like, and is appropriately improved within the scope of the technical idea disclosed by the present invention and / or within the scope obvious to those skilled in the art. It is also possible to use a combination or arrangement as appropriate. The tools and materials exemplified in this document can be replaced with other known tools as appropriate. Further, as is clear from the above description, the multi-storey building 1000 of the present invention is not limited to the one having a plurality of floors only above the ground, and can be applied if there is a single floor on the ground and there is an underground floor. It is sufficient if there are multiple floors.

  The present invention is suitable for an anti-scattering curing system or the like in which an anti-scattering curing sheet is provided overhead at a dismantling site.

  1000 ·· Multi-storey building, 1100 ·· Dismantling floor, 1200 ·· Lower floor, 2000 ·· Temporary scaffolding, 3000 ·· Healing sheet support pillar. 3500 ··· Curing sheet support pillar insertion hole, 4000 ·· · Anti-scattering curing sheet, 5000 · · Support square support, 6000 · · wire.

Claims (16)

It is an upward scattering prevention curing system that prevents scattering of crushed materials upward of the dismantling floor when dismantling a multi-storey building,
Curing sheet support column insertion hole disposed across the dismantling floor and its lower floor,
A curing sheet support column inserted into the curing sheet support column insertion hole and projecting upward from the dismantling floor;
A scattering prevention curing sheet supported on the top of the curing sheet support pillar,
The curing sheet support pillar is supported and fixed to the floor surface with a fire-blasting material in the lower floor,
The lower ends of the curing sheet support pillars pass through the curing sheet support pillar insertion hole of the lower floor and are maintained in a state of protruding downward from the lower floor. An upward scattering prevention curing system, wherein the curing sheet support column is supported and fixed by a column insertion hole. In the upward scattering prevention curing system according to claim 1,
When the curing sheet support column is lowered further down the floor, the curing sheet support column is inserted into the curing sheet support column insertion hole, and at least one of the dismantling floor and the lower floor is left. An upward scattering prevention curing system characterized by being lowered while being suspended from a surface. In the upward scattering prevention curing system according to claim 1 or 2,
The curing sheet support column is formed by adding and extending a plurality of shorter support columns, and a part of the curing sheet support column can be removed to shorten the entire length of the curing sheet support column. An upward scattering prevention curing system characterized by comprising. In the upward scattering prevention curing system according to any one of claims 1 to 3,
An upper scattering prevention curing system, wherein an edge portion of the scattering prevention curing sheet is locked to a temporary scaffold placed on an outer edge of the multi-storey building. In the upward scattering prevention curing system according to claim 4,
The height of the locking part to the temporary scaffold of the edge part of the scattering prevention curing sheet is:
An upward scattering prevention curing system characterized by having a height capable of securing a heavy machine working space for dismantling work and lower than a height of a support location to the top of the curing sheet support column. In the upward scattering prevention curing system according to any one of claims 1 to 5,
The curing sheet support pillar is:
A plurality of the dismantling floors are arranged apart from each other,
A wire is stretched between the tops of each curing sheet support pillar,
The scattering prevention curing sheet is supported by the wire.
An upward scattering prevention curing system characterized by that. In the upward scattering prevention curing system according to any one of claims 1 to 6,
The curing sheet support column insertion hole corresponding to one curing sheet support column is disposed in a vertical direction across the dismantling floor and the lower floor,
The above-mentioned curing sheet support pillar is projected vertically upward from the above-mentioned dismantling floor. In the upward scattering prevention curing system according to any one of claims 1 to 7,
The above-mentioned curing sheet support pillar is H steel. The upward scattering prevention curing system characterized by things. In the upward scattering prevention curing system according to any one of claims 1 to 8,
The anti-scattering curing sheet is a mesh sheet and covers the entire dismantling floor. In the upward scattering prevention curing system according to any one of claims 1 to 9,
The anti-scattering curing sheet is always disposed at a predetermined height from the floor on which heavy machinery for performing the crushing operation is arranged during the crushing operation. In the upward scattering prevention curing system according to claim 10,
The predetermined height is in a range of 8m to 10m. In the upward scattering prevention curing system according to claim 10 or 11,
The heavy equipment has a short reach specification. In the upward scattering prevention curing system according to any one of claims 1 to 12,
The above-mentioned curing sheet supporting pillar is not supported and fixed by a fire-spreading material on the above-mentioned dismantling floor. An upward scattering prevention curing method using the upward scattering prevention curing system according to any one of claims 1 to 13,
The chain block is inserted into the curing sheet support column insertion hole and protruded upward from the dismantling floor while being suspended from the dismantling floor or the lower floor by a wire. And the arrangement | positioning height of the said anti-scattering curing sheet | seat is made low further by making it deepen below further. The upward anti-scattering curing method characterized by the above-mentioned. It is an upward scattering prevention curing method according to claim 14,
As the dismantling floor of the multi-storey building is sequentially lowered to the lower floor, the curing sheet supporting pillar is sequentially inserted into the curing sheet supporting pillar insertion hole disposed on the lower floor of the dismantling floor. The dispersal prevention curing method is characterized by adjusting the arrangement height of the anti-scattering curing sheet by lowering the insertion. It is an upward scattering prevention curing method according to claim 15,
The upward scattering prevention curing method, wherein the scattering prevention curing sheet is disposed at an arbitrary height from the dismantling floor so that it can be dismantled by heavy machinery.