CN108487666B - Controlled demolition method for concrete retaining wall - Google Patents
Controlled demolition method for concrete retaining wall Download PDFInfo
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- CN108487666B CN108487666B CN201810209850.0A CN201810209850A CN108487666B CN 108487666 B CN108487666 B CN 108487666B CN 201810209850 A CN201810209850 A CN 201810209850A CN 108487666 B CN108487666 B CN 108487666B
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- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000005520 cutting process Methods 0.000 claims abstract description 81
- 239000004575 stone Substances 0.000 claims abstract description 35
- 238000004140 cleaning Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 4
- 238000005422 blasting Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 10
- 238000009412 basement excavation Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 230000000368 destabilizing effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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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
- E04G23/082—Wrecking of buildings using shears, breakers, jaws and the like
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Retaining Walls (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a controlled demolition method for a concrete retaining wall, which comprises the following steps: dig the earth and stone side of concrete barricade wall back one side under through the excavator, ensure that the concrete barricade is higher than the earth and stone side uses concrete cutter successive layer cutting according to the order from top to bottom the concrete barricade, excavate and collude the concrete operation to the part of having cut, will cut the part and collude to earth and stone side one side, the cutting the layer height of concrete barricade along with the concrete barricade with the difference in height of earth and stone side is decided, and B clearance is located the part of having cut of earth and stone side one side. Compared with the existing blasting demolition or heavy force crushing demolition method, the method has the advantages that the concrete retaining wall is cut into small blocks for demolition in a cutting mode, earthwork is dug downwards, the wall body is demolished in a circulating mode, collapse of the concrete retaining wall in the demolition process can be effectively avoided, and safe demolition is achieved.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a controlled demolition method for a concrete retaining wall.
Background
The concrete retaining wall is a structure for supporting roadbed filling or hillside soil body and preventing the filling or soil body from deforming and destabilizing. In Chongqing, cities are built according to mountains and are limited by geographical environments, concrete retaining walls are often required to be built for supporting hillside soil bodies in city construction, and residential districts, roads and the like are built on one sides of the wall surfaces of the concrete retaining walls. Such retaining walls are generally large, much more than 10 meters in height.
Since such concrete barriers are built adjacent residential quarters, once the concrete barriers age, they pose a safety threat to adjacent buildings and turn into a source of danger. The concrete retaining wall needs to be removed in time, but the existing removing methods are mostly carried out by strong destructive removal or direct blasting through equipment such as an air pick or a rock drill and the like, the methods are easy to cause the whole aged concrete retaining wall to collapse, the removing operation process is extremely dangerous, and once the concrete retaining wall collapses, the concrete retaining wall can damage an adjacent residential district or a road, so that great loss is caused.
In view of this, a technical problem to be solved by those skilled in the art is solved by how to provide a controlled demolition method for a concrete retaining wall, which can demolish the concrete retaining wall safely and effectively, and avoid the collapse of the concrete retaining wall during demolition to damage neighboring buildings.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to provide a controlled demolition method for a concrete retaining wall, which can safely and effectively demolish the concrete retaining wall and avoid the concrete retaining wall from collapsing in the demolition process and damaging adjacent buildings.
In order to solve the technical problems, the invention adopts the following technical scheme.
A controlled demolition method for a concrete retaining wall is characterized by comprising the following steps:
the method comprises the following steps that an excavator is used for downwards digging an earth and stone side on one side of the wall back of a concrete retaining wall to ensure that the concrete retaining wall is higher than the earth and stone side, a concrete cutting machine is used for cutting the concrete retaining wall layer by layer according to the sequence from top to bottom, the layer height for cutting the concrete retaining wall is smaller than or equal to the height difference between the concrete retaining wall and the downwards dug earth and stone side, and the excavator separates a cut part on the concrete retaining wall to enable the cut part to fall to one side of the earth and stone side; and clearing and transporting the cut part on one side of the earth and stone.
Compared with the existing blasting demolition or heavy force crushing demolition method, the method cuts the concrete retaining wall into small blocks for demolition in a cutting mode. Wherein the cutting is carried out through the manual work, and the workman is located the support frame of wall one side during specific cutting, cuts. The excavator can also stand on the earth and stone to directly cut one side of the wall back, and after the cutting is finished, the worker retreats and the excavator starts to operate. During cutting operation, the cutting operation needs to be carried out layer by layer, and the simultaneous cutting and dismantling of a plurality of layers are strictly forbidden. The simultaneous removal of multiple layers is easy to damage the strength of the whole structure of the concrete retaining wall, and safety accidents are easy to happen. The height of the cut concrete retaining wall is required to be less than or equal to the height difference between the concrete retaining wall and the earthwork, and the lower end surface of the cutting part is higher than the upper surface of the earthwork or is positioned on the same horizontal plane when the concrete is hooked, so that the cutting part is convenient to fall to one side of the earthwork. And in the dismantling process, one section of the earth and stone is dug downwards, one section of the concrete retaining wall is cut, and the concrete retaining wall is circularly constructed to realize the dismantling of the concrete retaining wall. The method for dismantling the concrete retaining wall can effectively avoid the collapse of the concrete retaining wall in the dismantling process, and realizes safe dismantling. The width of one side of the excavated earth and stone is excavated downwards within the range of 3 to 5 meters, so that the overlarge engineering quantity of the excavation of the earth and stone can be avoided, and the slope surface forming the earth and stone after excavation is reinforced at zero time.
Preferably, before the excavator excavates, a scaffold is erected at the wall surface of the concrete retaining wall to support the wall surface of the concrete retaining wall.
Like this, the concrete barricade can be supported to the scaffold frame, avoids the concrete barricade to collapse, and the setting of scaffold frame does make things convenient for the workman to stand the operation above that, accomplishes the wall body cutting.
Preferably, before the excavator separates the cut part on the concrete retaining wall, a part for connection is left between the cut part and the concrete retaining wall.
Therefore, the part needing to be cut is not cut off completely when the wall body is cut, namely the part is still connected to the wall body before the concrete hooking operation, so that the rim of the concrete hooking part is marked in the cutting process, and the difficulty of the concrete hooking operation is reduced. If the cutting part is cut off completely, the cut part is loosened and displaced once, so that safety accidents are easily caused.
Preferably, the worker stands on one side of the earth and stone to cut, and the excavator bucket of the excavator hooks one side of the wall surface of the part to be cut during the cutting process to prevent the part from falling along one side of the wall surface.
Like this, this mode is cut and can need not set up the support frame in wall one side, reduces construction cost, and the excavator catches on wall one side of cutting part and can effectually prevent to topple over. And the bucket can conveniently collude cutting part to earthwork one side after the cutting is accomplished, convenient operation compares and aims at cutting part safer in the mode of construction in the operation excavator after the cutting.
Preferably, the method specifically comprises the following steps:
a, drawing a groined grid on the concrete retaining wall surface;
b, downwards digging a groove in the earth-rock direction, wherein the width of the groove is greater than the width of the excavator body, the groove extends along the length direction of the concrete retaining wall and is tightly attached to the concrete retaining wall, the length of the groove is greater than the length of the concrete retaining wall, two ends of the groove exceed two ends of the concrete retaining wall, and the length of any exceeding part is greater than the length of the excavator body; when digging a groove, firstly, digging a slope downwards along any end of the groove according to a preset height, wherein the slope surface of the slope faces the other end of the groove, the span of the slope is smaller than the length of the excess part, driving the excavator into the slope, and then digging to the other end of the groove along the length direction of the groove according to the preset height;
c, cutting a part corresponding to a first grid at the end part of one side, far away from the slope, of the concrete retaining wall, stopping the excavator behind a second grid adjacent to the first grid, after cutting, hooking the cut part to one side of the groove by using an excavator bucket of the excavator, driving a cleaning vehicle along the slope, conveying the cut part in the groove to the cleaning vehicle by using the excavator bucket, driving the excavator and the cleaning vehicle, enabling the excavator to retreat to the rear of a third grid adjacent to the second grid, cutting and conveying the concrete retaining wall corresponding to the second grid according to the method, and circulating till the concrete retaining wall is removed;
d, after the first layer is removed, the excavator continues to dig downwards along the slope, and the steps b and c are repeated, so that the part painted with the grids on the concrete retaining wall is removed layer by layer.
Thus, the grid is arranged to facilitate cutting construction and estimate the cutting workload. The concrete retaining wall is cut into square blocks according to grid construction, so that the concrete retaining wall is convenient to clean and transport, and the concrete retaining wall is safer to cut relative to one layer. It should be noted that the smaller the meshing, the higher the safety during danger elimination and removal. When concrete cutting, earlier to the both sides of vertical cutting net, transversely cut the downside again, the downside is not cut completely thoroughly, and when cutting along wall back one side like this, the wall body that the net corresponds part has the trend of slope to earth stone side one side under the effect of dead weight, conveniently colludes the concrete. Can effectually avoid cutting part to empty safelyr to wall one side. The above provides a specific operation step in the dismantling process, and the cutting is performed sequentially layer by layer, so that the safety is ensured. The preset height is determined according to the height of the cutting layer, wherein the height of the excavated earth and stone is required to be lower than that of the concrete retaining wall.
Preferably, the size of the grid is 1.5 meters by 1.5 meters.
Therefore, the size of the grid is convenient to cut, the square blocks of the size are convenient to clear, and the size is also beneficial to operation when hooking concrete.
Preferably, the concrete retaining wall is divided into an upper part and a lower part, the upper part and the lower part are divided by a horizontal plane 3 m high away from the ground, the grids are arranged on the upper part of the concrete retaining wall, and the lower part of the concrete retaining wall is broken and removed.
Therefore, the concrete retaining wall is generally higher in actual demolition, more than 10 meters, and the demolition efficiency can be improved while the safe control demolition is ensured by dividing the concrete retaining wall into an upper part and a lower part and adopting different demolition methods. Namely, the upper part is removed in a mode of cutting matched with concrete hooking to ensure safety. When the height of the demolition is 3 meters, the demolition can be normally carried out by the existing demolition method, so that the efficiency can be improved.
Preferably, in the step a, concrete cutters are arranged on both sides of the concrete retaining wall, and the concrete cutters perform double-sided cutting on the concrete retaining wall.
Therefore, considering the thickness of the concrete retaining wall, the single-side cutting depth is not enough to enable the concrete hooking operation to be carried out smoothly, namely, the two side surfaces of the wall body are cut aiming at the parts needing to be removed, so that the thickness of the joint of the concrete retaining wall and the cutting part can be effectively reduced, and the smooth concrete hooking operation is convenient.
Preferably, a protection pad is paved on the ground close to one side of the concrete retaining wall surface.
Therefore, the arrangement of the protection pad mainly avoids the damage to the ground caused by the falling of concrete when the wall body is cut.
Preferably, a protective net is built on one side of the scaffold far away from the wall surface.
Therefore, the protective net is mainly used for preventing concrete from splashing when the wall body is cut, and safety accidents are avoided.
Drawings
FIG. 1 is a schematic structural view of a scaffold and a concrete retaining wall part in a method for controlled demolition of a concrete retaining wall according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a groove arrangement manner in a concrete retaining wall controlled demolition method according to an embodiment of the present invention.
Wherein, 1 is a scaffold, 2 is a concrete retaining wall, 3 is a earthwork, 4 is a protection pad, 5 is an excavator, 6 is a groove, and 601 is a slope.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1 and 2, a schematic structural view of a scaffold and a concrete retaining wall portion in a method for controlled demolition of a concrete retaining wall according to an embodiment of the present invention, and fig. 2 is a schematic view of a groove arrangement manner in a method for controlled demolition of a concrete retaining wall according to an embodiment of the present invention.
A method for controllably demolishing a concrete retaining wall 2 comprises the following steps:
digging an earth and stone space 3 on one side of the wall back of a concrete retaining wall 2 downwards by an excavator 5 to ensure that the concrete retaining wall 2 is higher than the earth and stone space 3, cutting the concrete retaining wall 2 layer by using a concrete cutting machine according to the sequence from top to bottom, wherein the layer height of the cut concrete retaining wall 2 is less than or equal to the height difference between the concrete retaining wall 2 and the excavated earth and stone space 3, and separating the cut part on the concrete retaining wall 2 by the excavator 5 to enable the cut part to fall to one side of the earth and stone space 3; the cut part on the side of the earth and stone 3 is cleared.
Thus, compared with the existing blasting demolition or heavy force crushing demolition method, the method cuts the concrete retaining wall 2 into small blocks for demolition in a cutting mode. Wherein the cutting is carried out through the manual work, and the workman is located the support frame of wall one side during specific cutting, cuts. Or the excavator can stand on the earth and stone 3 to directly cut one side of the wall back, and after the cutting is finished, the worker retreats and the excavator 5 starts to work. During cutting operation, the cutting operation needs to be carried out layer by layer, and the simultaneous cutting and dismantling of a plurality of layers are strictly forbidden. The simultaneous removal of a plurality of layers is easy to damage the strength of the whole structure of the concrete retaining wall 2, and safety accidents are easy to happen. The height of the cut concrete retaining wall 2 is required to be less than or equal to the height difference between the concrete retaining wall 2 and the earthwork 3, and the lower end surface of the cut part is higher than the upper surface of the earthwork 3 or is positioned on the same horizontal plane when the concrete is hooked, so that the cut part is convenient to fall to one side of the earthwork 3. In the dismantling process, one section of the earth-rock square 3 is dug downwards, one section of the concrete retaining wall 2 is cut, and the concrete retaining wall 2 is dismantled in a circulating construction mode. The method for dismantling the concrete retaining wall 2 can effectively avoid the collapse of the concrete retaining wall 2 in the dismantling process, and realize safe dismantling. The width of one side of the excavated earth and stone 3 is usually excavated downwards within the range of 3 to 5 meters, so that the overlarge engineering quantity of the excavation of the earth and stone 3 can be avoided, and the slope surface forming the earth and stone 3 after excavation is reinforced at zero time.
In this embodiment, the scaffold 1 is set up at the wall surface of the concrete retaining wall 2 to support the wall surface of the concrete retaining wall 2 before the excavator 5 excavates.
Like this, scaffold 1 can support concrete barricade 2, avoids concrete barricade 2 to collapse, and setting up of scaffold 1 also makes things convenient for the workman to stand above that the operation, accomplishes the wall body cutting.
In this embodiment, the excavator 5 leaves a connection portion between the cut portion and the concrete retaining wall 2 before separating the cut portion of the concrete retaining wall 2.
Therefore, the part needing to be cut is not cut off completely when the wall body is cut, namely the part is still connected to the wall body before the concrete hooking operation, so that the rim of the concrete hooking part is marked in the cutting process, and the difficulty of the concrete hooking operation is reduced. If the cutting part is cut off completely, the cut part is loosened and displaced once, so that safety accidents are easily caused.
In this embodiment, the worker stands on the earth and rockwork 3 side to cut, and the bucket of the excavator 5 catches on the wall surface side of the portion to be cut during the cutting process, preventing it from falling down along the wall surface side.
Like this, this mode is cut and can need not set up the support frame in wall one side, reduces construction cost, and excavator 5 catches on wall one side of cutting part and can effectually prevent to topple over. And the bucket can conveniently collude cutting part to 3 one sides of stone earth after the cutting is accomplished, convenient operation compares and is safer in the mode of construction of 5 alignment cutting parts at operation excavator after the cutting.
In this embodiment, the method specifically includes the following steps:
a, drawing a groined grid on the wall surface of the concrete retaining wall 2;
b, digging a groove 6 downwards on the earth and stone 3, wherein the width of the groove 6 is greater than the width of the body of the excavator 5, the groove 6 extends along the length direction of the concrete retaining wall 2 and is closely attached to the concrete retaining wall 2, the length of the groove 6 is greater than that of the concrete retaining wall 2, two ends of the groove exceed two ends of the concrete retaining wall 2, and the length of any exceeding part is greater than that of the body of the excavator 5; when the groove 6 is dug, firstly, a slope 601 is dug downwards along any end of the groove 6 according to a preset height, the slope surface of the slope 601 faces the other end of the groove 6, the span of the slope 601 is smaller than the length of the excess part, the excavator 5 is driven into the slope 601, and then the excavator is dug to the other end of the groove 6 according to the preset height along the length direction of the groove 6;
c, cutting a part corresponding to a first grid at the end part of one side, far away from the slope 601, of the concrete retaining wall 2, stopping the excavator 5 behind a second grid adjacent to the first grid, after cutting, hooking the cut part to one side of the groove 6 by using an excavator bucket of the excavator 5, driving a cleaning vehicle along the slope 601, conveying the cut part in the groove 6 to the cleaning vehicle by using the excavator bucket, driving the excavator 5 and the cleaning vehicle, enabling the excavator 5 to retreat to the rear part of a third grid adjacent to the second grid, cutting and conveying the concrete retaining wall 2 corresponding to the second grid according to the method, and circulating the steps until the concrete retaining wall 2 is removed;
d, after the first layer is removed, the excavator 5 continues to dig downwards along the slope 601, and the steps b and c are repeated, so that the part drawn with the grids on the concrete retaining wall 2 is removed layer by layer.
Thus, the grid is arranged to facilitate cutting construction and estimate the cutting workload. The concrete retaining wall 2 is cut into square blocks according to grid construction, so that the square blocks are convenient to clear and transport, and the concrete retaining wall is safer to cut relative to one layer. It should be noted that the smaller the meshing, the higher the safety during danger elimination and removal. During concrete cutting, firstly to the both sides of vertical cutting net, transversely cut the downside again, the downside is not cut completely thoroughly, and when cutting along wall back one side like this, the wall body that the net corresponds part has the trend of 3 inclines in one side of the earth and stone side under the effect of dead weight, conveniently colludes the concrete. Can effectually avoid cutting part to empty safelyr to wall one side. The above provides a specific operation step in the dismantling process, and the cutting is performed sequentially layer by layer, so that the safety is ensured. The preset height is determined according to the height of the cutting layer, wherein the height of the excavated earthwork 3 is required to be lower than that of the concrete retaining wall 2.
In this embodiment, the size of the grid is 1.5 meters by 1.5 meters.
Therefore, the size of the grid is convenient to cut, the square blocks of the size are convenient to clear, and the size is also beneficial to operation when hooking concrete.
In this embodiment, the concrete retaining wall 2 is divided into an upper part and a lower part, the upper part and the lower part are divided by a horizontal plane 3 m high from the ground, the grid is arranged at the upper part of the concrete retaining wall 2, and the lower part of the concrete retaining wall 2 is broken and removed.
Therefore, the concrete retaining wall 2 is generally higher in actual demolition, more than 10 meters, so that the concrete retaining wall 2 is divided into an upper part and a lower part, and demolition efficiency can be improved while safety control demolition is guaranteed by adopting different demolition methods. Namely, the upper part is removed in a mode of cutting matched with concrete hooking to ensure safety. When the height of the demolition is 3 meters, the demolition can be normally carried out by the existing demolition method, so that the efficiency can be improved.
In this embodiment, in step a, concrete cutters are disposed on both sides of the concrete retaining wall 2, and the concrete cutters perform double-sided cutting on the concrete retaining wall 2.
Therefore, considering the thickness of the concrete retaining wall 2, the cutting depth of the single side is not enough to enable the concrete hooking operation to be carried out smoothly, namely, the two side surfaces of the wall body are cut aiming at the position needing to be removed, so that the thickness of the joint of the concrete retaining wall 2 and the cutting part can be effectively reduced, and the concrete hooking operation is convenient to carry out smoothly.
In this embodiment, a protection pad 4 is laid on the ground adjacent to the wall surface side of the concrete retaining wall 2.
Thus, the arrangement of the protective pad 4 mainly avoids the concrete falling to damage the ground when the wall body is cut.
In this embodiment, a protective net is built on one side of the scaffold 1 away from the wall surface.
Therefore, the protective net is mainly used for preventing concrete from splashing when the wall body is cut, and safety accidents are avoided.
Claims (9)
1. A controlled demolition method for a concrete retaining wall is characterized by comprising the following steps:
the method comprises the following steps that an excavator is used for downwards digging an earth and stone side on one side of the wall back of a concrete retaining wall to ensure that the concrete retaining wall is higher than the earth and stone side, a concrete cutting machine is used for cutting the concrete retaining wall layer by layer according to the sequence from top to bottom, the layer height for cutting the concrete retaining wall is smaller than or equal to the height difference between the concrete retaining wall and the downwards dug earth and stone side, and the excavator separates a cut part on the concrete retaining wall to enable the cut part to fall to one side of the earth and stone side; clearing and transporting the cut part on one side of the earth and stone;
the method specifically comprises the following steps:
a, drawing a groined grid on the concrete retaining wall surface;
b, downwards digging a groove in the earth-rock direction, wherein the width of the groove is greater than the width of the excavator body, the groove extends along the length direction of the concrete retaining wall and is tightly attached to the concrete retaining wall, the length of the groove is greater than the length of the concrete retaining wall, two ends of the groove exceed two ends of the concrete retaining wall, and the length of any exceeding part is greater than the length of the excavator body; when digging a groove, firstly, digging a slope downwards along any end of the groove according to a preset height, wherein the slope surface of the slope faces the other end of the groove, the span of the slope is smaller than the length of the excess part, driving the excavator into the slope, and then digging to the other end of the groove along the length direction of the groove according to the preset height;
c, cutting a part corresponding to a first grid at the end part of one side, far away from the slope, of the concrete retaining wall, stopping the excavator behind a second grid adjacent to the first grid, after cutting, hooking the cut part to one side of the groove by using an excavator bucket of the excavator, driving a cleaning vehicle along the slope, conveying the cut part in the groove to the cleaning vehicle by using the excavator bucket, driving the excavator and the cleaning vehicle, enabling the excavator to retreat to the rear of a third grid adjacent to the second grid, cutting and conveying the concrete retaining wall corresponding to the second grid according to the method, and circulating till the concrete retaining wall is removed;
d, after the first layer is removed, the excavator continues to dig downwards along the slope, and the steps b and c are repeated, so that the part painted with the grids on the concrete retaining wall is removed layer by layer.
2. The method for controlledly removing a concrete retaining wall according to claim 1, wherein a scaffold is erected at the wall surface of the concrete retaining wall to support the wall surface of the concrete retaining wall before the excavator excavates.
3. The method for controlled demolition of concrete retaining wall according to claim 1, wherein a portion for connection is left between the cut portion and the concrete retaining wall before the excavator separates the cut portion on the concrete retaining wall.
4. The method for controlledly removing a concrete retaining wall according to claim 3, wherein a worker stands on one side of an earth and rockwork to perform cutting, and the excavator of said excavator catches one side of the wall surface of the portion to be cut during the cutting process to prevent the portion from falling down along the one side of the wall surface.
5. The method for controlled demolition of concrete retaining wall according to claim 1, wherein the size of the grid is 1.5 m x 1.5 m.
6. The method for controllably demolishing a concrete retaining wall according to claim 1, wherein the concrete retaining wall is divided into an upper portion and a lower portion, the upper portion and the lower portion are demarcated by a horizontal plane 3 m high from the ground, the grid is disposed on the upper portion of the concrete retaining wall, and the lower portion of the concrete retaining wall is demolished by crushing.
7. The method for controlled demolition of a concrete retaining wall according to claim 1, wherein concrete cutters are disposed on both sides of the concrete retaining wall, and the concrete cutters perform double-sided cutting on the concrete retaining wall.
8. The method for controlled demolition of concrete retaining wall according to claim 1, wherein a protection pad is laid on the ground adjacent to one side of the concrete retaining wall.
9. The method for controllably demolishing a concrete retaining wall according to claim 2, wherein a protective net is built on one side of the scaffold away from the wall surface.
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| CN110259182B (en) * | 2019-04-26 | 2021-03-19 | 安徽省公路桥梁工程有限公司 | Construction method of ecological demolition structure of retaining wall |
| CN111021780B (en) * | 2019-12-27 | 2023-10-20 | 上海建工五建集团有限公司 | Inclined wall dismantling system and method thereof |
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| JPH04194277A (en) * | 1990-11-28 | 1992-07-14 | Toda Constr Co Ltd | Demolishing method for building |
| JP4093670B2 (en) * | 1999-02-23 | 2008-06-04 | 株式会社大林組 | Dismantling method of underground structure |
| CN103291085A (en) * | 2013-06-07 | 2013-09-11 | 陈春来 | Concrete static force cutting dismantling construction method |
| CN105569376A (en) * | 2015-12-17 | 2016-05-11 | 上海建工一建集团有限公司 | Demolition construction method for building wall |
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2018
- 2018-03-14 CN CN201810209850.0A patent/CN108487666B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04194277A (en) * | 1990-11-28 | 1992-07-14 | Toda Constr Co Ltd | Demolishing method for building |
| JP4093670B2 (en) * | 1999-02-23 | 2008-06-04 | 株式会社大林組 | Dismantling method of underground structure |
| CN103291085A (en) * | 2013-06-07 | 2013-09-11 | 陈春来 | Concrete static force cutting dismantling construction method |
| CN105569376A (en) * | 2015-12-17 | 2016-05-11 | 上海建工一建集团有限公司 | Demolition construction method for building wall |
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| Title |
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| 钢筋混凝土切割拆除方案;飞虹;《科技创新与应用》;20120430;第171页 * |
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