CN104405139A - Strengthening method for stone wall body - Google Patents
Strengthening method for stone wall body Download PDFInfo
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- CN104405139A CN104405139A CN201410718582.7A CN201410718582A CN104405139A CN 104405139 A CN104405139 A CN 104405139A CN 201410718582 A CN201410718582 A CN 201410718582A CN 104405139 A CN104405139 A CN 104405139A
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- barnacle
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Abstract
The invention discloses a strengthening method for a stone wall body. The strengthening method including preparing pre-buried hook members (2), screws (4), flange plates (5), nuts (7), steel angles (8, 11), expansion bolts (12), zinc-coated wires (14), assembling units of steel plates and meshes (15), structural adhesive and concrete material; then excavating foundation pits on two sides of the stone wall body, pouring a concrete foundation (3) and inserting the pre-buried hook members (2); punching through holes in the stone wall body (1), blowing off dust, allowing the screws (4) to penetrate through the through holes, fixing two ends of each screw (4) by the nuts (7); arranging the assembling units of steel plates and meshes (15) on the stone wall body (1) and fixing by the expansion bolts (12); connecting flange plate holes (16), the hook members (2), binding holes (19) and eyelets (18) by binding through the zinc-coated wires (14), to form a criss-cross zinc-coated wires (14) net; the strengthening of the stone wall body (1) is achieved by jetting fine aggregate concrete (20).
Description
One, technical field
The present invention relates to a kind of employing outside screw rod through walls and connect stone-made house body of wall reinforced by flange method by zinc-coated wire junction steel plate mesh sheet, be particularly useful for the house that the construction time irregular stone body of employing comparatively is early built by laying bricks or stones, belong to technical field of anti-seismic reinforcement.
Two, background technology
The compressive strength of stone own is high, good endurance, is exactly a kind of traditional building materials since ancient times.The house of being built by laying bricks or stones by stone material, cool in summer and warm in winter have good comfortable for living.In the area such as Tibet and Fujian, stone material is easier to obtain, and the stone-made house built up in house owed by a citizen is more.Large-scale palace building and minority house owed by a citizen have to adopt beats that the finished stone block of cutter builds by laying bricks or stones, and this kind of body of wall reinforcing can adopt regular block masonry structure " method of wire gauze cement mortar reinforcing cavity wall " (number of patent application 201210480862.X) reinforcement means to carry out.But for most of house owed by a citizen, irregular stone is all adopted to pile up, bulk shape size differs, belong to discrete material, for reaching heat insulating effect, roof system is mostly more thick and heavy, adopt clay sealing to assemble between block to form, because the gluing power between block and clay is poor, pass house in time aging, the reasons such as rain drop erosion, filleting earth comes off, and integral anti-shearing between block, tensile property are poor, easily collapses when meeting with large shake, totally unfavorable to antidetonation, therefore improve this type of wall shear resistant and the ductility under macroseism is most important.
For irregular stone masonry construction house, main is will limit block excessive plane external space displacement to occur, the changing of the relative positions between constraint block.This is very necessary to earthquake-resistant ability for raising stone-made house.Front reinforcing is shaken to stone masonry construction house wall, improves the shear resistance of body of wall and the globality in house, to improve earthquake-resistant building ability, also can improve house insulation heat-proof quality, reduce energy consumption, of great advantage to preserving the ecological environment.Number of patent application 201320630817.8, the patent that name is called " adopting cage of reinforcement additional steel plates mesh sheet through walls to reinforce stone structure ", this kind of method is comparatively applicable to the stressed less situation of body of wall, because can moderate finite deformation be produced after steel plate mesh sheet is stressed, and finger stone and earth can skid off along fenestral porosity, for most of house owed by a citizen of such as Tibet region, mode is piled up because most barnacle body of wall adopts, material hardness is large, thickness of wall body is also thicker, when adopting electric drill to carry out pore-forming, implementing difficulty large, drilling hole amount should be reduced as far as possible.
Three, summary of the invention
The object of the invention is for stone shape and size all irregular, and the body of wall piling up out does not have the barnacle body of wall in neat regular gap, overcome and adopt the defects such as the reinforcing way difficulty of construction inserting the outer cloth reinforced mesh of reinforcing bar through walls is large, drilling hole amount is many, design is a kind of adopts screw rod through walls plug-in flange drawknot expanded metal lath chip assembly, simple for process, effectively can improve again the barnacle wall reinforcement method of stone-made house shock resistance.
The concrete technical scheme that the present invention adopts is:
A kind of barnacle wall reinforcement method, is characterized in that:
By the pre-buried hooking part of design preparation, screw rod, flange, nut, unequal angle, equal leg angle, expansion bolt, zinc-coated wire (the friction snap-in force between this kind of steel wire and pea gravel concreten is strong), expanded metal lath chip assembly, structure glue and pea gravel concreten, wherein:
The screw thread coordinated with nut is attacked at screw rod two ends;
Flange center has centre bore, flange equal circumference has flange disk hole;
At least one limb of equal leg angle has hole for the expansion bolt, at least another limb has colligation hole;
The long limb of unequal angle has hole for the expansion bolt and colligation hole;
The frame that expanded metal lath chip assembly is made up of the constraint steel plate of periphery and the steel plate mesh sheet be sandwiched in frame form, and constraint steel plate has eyelet and hole for the expansion bolt;
Then follow these steps to successively carry out:
Step one: both sides excavation pit inside and outside barnacle body of wall, concreting basis, concrete foundation end face, lower than ground 40-60mm, inserts multiple pre-buried hooking part and the hooking part of pre-buried hooking part exposes concrete foundation when building;
On barnacle body of wall, multiple manhole is made by design, and blow off the assorted dirt inside through hole with blast fan, screw rod is passed from through hole, and two ends of thread all expose outside barnacle body of wall, reperfusion structure glue in through hole, each end of thread is fixed by nut after passing from the centre bore of flange;
By design, multiple expanded metal lath chip assembly is set on barnacle body of wall, and with expansion bolt through after the hole for the expansion bolt on constraint steel plate, expanded metal lath chip assembly being fixed on barnacle body of wall;
Embedded by force by the manomelia of unequal angle between barnacle body of wall and roof system, long limb is then fixed on barnacle body of wall by expansion bolt;
When meeting door and window hole, a limb of equal leg angle band hole for the expansion bolt is affixed on the inner side of door and window hole, and fixes with expansion bolt, another limb in band colligation hole is affixed on barnacle wall and surface;
When meeting barnacle body of wall corner, a limb of equal leg angle band hole for the expansion bolt is affixed on a side wall of barnacle body of wall, and fixes with expansion bolt, another limb in band colligation hole is affixed on barnacle body of wall opposite side metope;
Step 2: between the flange disk hole and the flange disk hole of another adjacent flanges dish of a flange, or between flange disk hole and the hooking part closing on hooking part, or in flange disk hole and close between colligation hole, or in flange disk hole and close between eyelet, or be connected and Shi Hanzhang with zinc-coated wire colligation respectively between the eyelet that the eyelet of an expanded metal lath chip assembly is adjacent with another expanded metal lath chip assembly, inside and outside barnacle body of wall, metope forms crisscross zinc-coated wire thus, wherein expanded metal lath chip assembly is mainly used in reinforcing but is difficult to the stone place in small, broken bits in the barnacle body of wall punched, zinc-coated wire should be evenly arranged on metope as far as possible,
Step 3: employing is sprayed pea gravel concreten or smeared the internal wall face of cement mortar mode and processes, and just achieves the reinforcing of barnacle body of wall.
In the present invention, run through the screw rod of body of wall, flange and expanded metal lath chip assembly, angle steel and zinc-coated wire, form one for irregular stone-made house reinforcement system.
Conventional concrete way is:
Bar-shaped trough after-pouring pea gravel concreten is excavated bottom body of wall, and imbed pre-buried hooking part, and electricity consumption is drilled on body of wall and opens hole, penetrate the screwed screw rod in two ends, generally all gap can be had between body of wall top and roof system, unequal angle is inserted by force in gap, angle steel manomelia is inserted in the space of body of wall and roof system and goes, door and window hole and corner then adopt equal leg angle to reinforce, equal leg angle one limb is attached to the inner side at hole, employing expansion bolt is fixed, and another limb is then close to wall outer side, is also fixed by expansion bolt intermittent; The inner corner trim of body of wall corner and external corner place also adopt equal leg angle to fix, and be then connected in steel plate mesh sheet with zinc-coated wire through the reserving hole on angle steel, pre-buried hooking part then pre-buried with basic part is below connected, and applies pretightning force.
Screw rod is the screwed plain bars in two ends, and diameter is 16mm ~ 20mm, intermittent be laid on metope, select to be easy to body of wall and to become the position of through hole to arrange.
The hole diameter that body of wall is opened should be greater than screw diameter 2-3mm, and hole should keep vertical with metope as far as possible, and screw rod is placed in the high-strength expansive mortar structure glue of application after in hole and does cementation of fissures process.
Concrete foundation should be close to former barnacle body of wall, foundation width 150-200mm, dark 300-500mm, and the concrete strength of building should lower than C2O, and the pre-buried hooking part put into can be butterfly standard component.
Flange disk hole is about the center of circle symmetrically shape layout, and self be equilibrium state substantially after stressed, this structure makes screw rod can not produce excessive extruding force to original wall body, because excessive extruding force can increase the weight of the further damage of body of wall.
In described expanded metal lath chip assembly, steel plate mesh sheet can be the black steel sheet mesh flake that the individual wire cross section of selling market is prismatic.
Advantage of the present invention is:
Adopt outside screw rod and connect the constraint fixed point of flange as enhancement Layer, then be aided with expanded metal lath sheet constraint block deformity out of plane and can reduce screw rod quantity, reduce the damage to body of wall.And then:
(1) this reinforcement means strong adaptability, is applicable to the wall reinforcement that regular block and irregular block are built by laying bricks or stones, and construction technology is simple, and hole through walls is few, greatly reduces reinforcement amount; Expanded metal lath chip assembly market is on sale, can be directly used in wall reinforcement after purchase, reduces the workload manufacturing expanded metal lath chip assembly, and speed of application is fast, greatly reduces human cost.Hole through walls for body of wall can be arranged in the hole place between stone material block by this method neatly, thus decreases the destruction to original block.
(2) when carrying out colligation to expanded metal lath chip assembly and connecting, because flange is subject to all directions pulling force, by applying pretightning force to zinc-coated wire, can more effectively strain expanded metal lath chip assembly, flange all directions power is in equilibrium state substantially, avoids screw rod and extrudes the uneven destruction of causing of the block partial pressing caused to hole periphery block.
(3) reinforcement process is simple, and common laborer can carry out strengthening construction, and material therefor, from heavy and light, is convenient to transport, strong adaptability, and after reinforcing and calamity, in quick repairing and reinforcement, application is convenient, and quality is also easy to control.
(4) angle steel that hole part angle steel, mounting flange, steel plate mesh sheet and the corner place such as body of wall top and roof system contact site, door and window are fixing, be interconnected between all parts, improve body of wall shear resistance, suppress the outer changing of the relative positions of block plane, improve house performance.
(5) bilateral reinforcing wall, by inside and outside sprayed mortar or plaster, makes body of wall sealing strengthen, improve wall thermal insulating heat-and sound-insulating performance, live more comfortable, energy-saving effect is also more obvious, and this is larger to the warming help solving the cold district such as such as Tibet winter.
Four, accompanying drawing explanation
Fig. 1 is the barnacle wall plane schematic diagram that screw rod through walls plug-in flange junction steel plate net is formed.
Fig. 2 is the A-A sectional schematic diagram after barnacle body of wall injection pea gravel concreten described in Fig. 1.
Fig. 3 is angle steel reinforced door and window hole schematic diagram.
Fig. 4 is that barnacle body of wall corner reinforces schematic diagram.
Fig. 5 is the schematic diagram that pre-buried hooking part is embedded in concrete foundation.
Fig. 6 is expanded metal lath chip assembly schematic diagram.
Fig. 7 is flange schematic diagram.
In figure, 1, barnacle body of wall; 2, pre-buried hooking part; 3, concrete foundation; 4, screw rod; 5, flange; 6, centre bore; 7, nut; 8, unequal angle; 9, door and window hole; 10, turning; 11, equal leg angle; 12, expansion bolt; 13, hole for the expansion bolt; 14, zinc-coated wire; 15, expanded metal lath chip assembly; 16, flange disk hole; 17, expanded metal lath sheet constraint steel plate; 18, the eyelet on steel plate is retrained; 19, colligation hole; 20, pea gravel concreten.
Five, detailed description of the invention
Specific embodiments of the invention are provided below in conjunction with accompanying drawing.
As shown in Fig. 1-Fig. 7, a kind of barnacle wall reinforcement method, is characterized in that:
By design preparation pre-buried hooking part 2, screw rod 4, flange 5, nut 7, unequal angle 8, equal leg angle 11, expansion bolt 12, zinc-coated wire 14, expanded metal lath chip assembly 15, structure glue and concrete material, wherein:
The screw thread coordinated with nut 7 is attacked at screw rod 4 two ends;
Flange 5 center has centre bore 6, and flange 5 equal circumference has flange disk hole 16;
One limb of equal leg angle 11 has hole for the expansion bolt 13, another limb has colligation hole 19;
The long limb of unequal angle 8 has hole for the expansion bolt 13 and colligation hole 19;
The frame that expanded metal lath chip assembly 15 is made up of the constraint steel plate 17 of periphery and the steel plate mesh sheet be sandwiched in frame form, and constraint steel plate 17 has eyelet 18 and hole for the expansion bolt 13;
Then follow these steps to successively carry out:
Step one: both sides excavation pit inside and outside barnacle body of wall 1, concreting basis 3, concrete foundation 3 end face, lower than ground 40-60mm, inserts multiple pre-buried hooking part 2 and the arc-shaped hooking part of pre-buried hooking part 2 exposes concrete foundation 3 when building;
On barnacle body of wall 1, multiple manhole is made by design, and the assorted dirt blown off with blast fan in through hole, screw rod 4 is passed from through hole, and two ends of thread all expose outside barnacle body of wall 1, reperfusion structure glue in through hole, each end of thread is fixed by nut 7 after passing from the centre bore 6 of flange 5;
By design, multiple expanded metal lath chip assembly 15 is set on barnacle body of wall 1, and with expansion bolt 12 through after the hole for the expansion bolt 13 on constraint steel plate 17, expanded metal lath chip assembly 15 being fixed on barnacle body of wall 1;
Embedded by force by the manomelia of unequal angle 8 between barnacle body of wall 1 and roof system, long limb is then fixed on barnacle body of wall 1 by expansion bolt 12;
When meeting door and window hole 9, the limb of equal leg angle 11 with hole for the expansion bolt 13 is affixed on the inner side of door and window hole 9, and fixes with expansion bolt 12, another limb in band colligation hole 19 is affixed on barnacle body of wall 1 metope;
When meeting barnacle body of wall 1 corner 10, the limb of equal leg angle 11 with hole for the expansion bolt 13 is affixed on a side wall of barnacle body of wall 1, and fixes with expansion bolt 12, another limb in band colligation hole 19 is affixed on barnacle body of wall 1 opposite side metope;
Step 2: between the flange disk hole 16 and the flange disk hole 16 of another adjacent flanges dish 5 of a flange 5 or flange disk hole 16 with between the hooking part closing on hooking part 2 or flange disk hole 16 with to close between colligation hole 19 or be connected and Shi Hanzhang with zinc-coated wire 14 colligation respectively with closing between eyelet 18 or between the eyelet 18 that the eyelet 18 of an expanded metal lath chip assembly 15 is adjacent with another expanded metal lath chip assembly 15 in flange disk hole 16, inside and outside barnacle body of wall 1, metope is formed crisscross zinc-coated wire 14 thus;
Step 3: adopt injection pea gravel concreten 20 to process interior wall face, just achieve the reinforcing of barnacle body of wall 1.
In the present embodiment, screw rod 4 is the screwed plain bars in two ends, and diameter is 16mm ~ 20mm, intermittent be laid on metope, become the position of through hole to arrange to select being easy to body of wall.
The hole diameter that barnacle body of wall 1 is opened should be greater than screw rod 4 diameter 2-3mm, and hole should keep vertical with metope as far as possible, and screw rod 4 is placed in the high-strength expansive mortar structure glue of application after in hole and does cementation of fissures process.
Concreting basis 3 width 150-200mm, dark 300-500mm, the concrete strength built should lower than C2O, the pre-buried hooking part 2 put into is butterfly combined standard part, the steel plate of butterfly combined standard part answers thickness to be greater than 12mm, width 100mm, length 150mm, lay along basic length direction, its can by zinc-coated wire 14 and expanded metal lath chip assembly 15 reliably drawknot on concreting basis 3.
Described flange 5 is thick 14mm, the circular steel plate of diameter 100mm, and 22mm centre bore 6 is opened in centre, digs out diameter 5 ~ 6mm hole for the expansion bolt 13, to wear zinc-coated wire 14 near edge intermittent.
In described expanded metal lath chip assembly 15, steel plate mesh sheet is the individual wire cross section that market is sold is the black steel sheet mesh flake of prismatic, planar dimension is 500*500mm, and mesh flake surrounding adopts the thick wide 30mm steel sheet band clamping of two panels 2mm to make expanded metal lath sheet constraint steel plate 17.
It is unequal angle 8 and the equal leg angle 11 of 6-8mm that angle steel adopts limb thick.
Claims (1)
1. a barnacle wall reinforcement method, is characterized in that:
By the design pre-buried hooking part of preparation (2), screw rod (4), flange (5), nut (7), unequal angle (8), equal leg angle (11), expansion bolt (12), zinc-coated wire (14), expanded metal lath chip assembly (15), structure glue and concrete material, wherein:
The screw thread coordinated with nut (7) is attacked at screw rod (4) two ends;
Flange (5) center has centre bore (6), flange (5) equal circumference has flange disk hole (16);
At least one limb of equal leg angle (11) has hole for the expansion bolt (13), at least another limb has colligation hole (19);
The long limb of unequal angle (8) has hole for the expansion bolt (13) and colligation hole (19);
The frame that expanded metal lath chip assembly (15) is made up of perimeter constraint steel plate (17) and the steel plate mesh sheet be sandwiched in frame form, and constraint steel plate (17) has eyelet (18) and hole for the expansion bolt (13);
Then follow these steps to successively carry out:
Step one: at barnacle body of wall (1) inside and outside both sides excavation pit, concreting basis (3), concrete foundation (3) end face, lower than ground 40-60mm, inserts multiple pre-buried hooking parts (2) and the hooking part of pre-buried hooking part (2) exposes concrete foundation (3) when building;
Multiple manhole is made by design (1) between the seam of barnacle body of wall hole, and blow off the assorted dirt inside through hole with blast fan, screw rod (4) is passed from through hole, and two ends of thread all expose barnacle body of wall (1) outward, reperfusion structure glue in through hole, is fixed by nut (7) after each end of thread passes from the centre bore (6) of flange (5);
By design, multiple expanded metal lath chip assembly (15) is set on barnacle body of wall (1), and with expansion bolt (12) through after the hole for the expansion bolt (13) in constraint steel plate (17), expanded metal lath chip assembly (15) being fixed on barnacle body of wall (1);
Embedded by force by the manomelia of unequal angle (8) between barnacle body of wall (1) and roof system, long limb is then fixed on barnacle body of wall (1) by expansion bolt (12);
When meeting door and window hole (9), one limb of equal leg angle (11) band hole for the expansion bolt (13) is affixed on the inner side of door and window hole (9), and fix with expansion bolt (12), another limb of band colligation hole (19) is affixed on barnacle body of wall (1) metope;
Barnacle body of wall (1) corner (10) place, one limb of equal leg angle (11) band hole for the expansion bolt (13) is affixed on a side wall of barnacle body of wall (1), and fix with expansion bolt (12), another limb of band colligation hole (19) is affixed on barnacle body of wall (1) opposite side metope;
Step 2: between the flange disk hole (16) and the flange disk hole (16) of another adjacent flanges dish (5) of a flange (5), or between flange disk hole (16) and the hooking part closing on hooking part (2), or in flange disk hole (16) and close between colligation hole (19), or in flange disk hole (16) and close between eyelet (18), or be connected and Shi Hanzhang with zinc-coated wire (14) colligation respectively between the eyelet (18) that the eyelet (18) of an expanded metal lath chip assembly (15) is adjacent with another expanded metal lath chip assembly (15), crisscross zinc-coated wire (14) net is formed thus on the inside and outside metope of barnacle body of wall (1),
Step 3: employing is sprayed pea gravel concreten (20) or smeared the internal wall face of cement mortar mode and processes, and just achieves the reinforcing of barnacle body of wall (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410718582.7A CN104405139B (en) | 2014-12-03 | 2014-12-03 | Strengthening method for stone wall body |
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| CN201410718582.7A CN104405139B (en) | 2014-12-03 | 2014-12-03 | Strengthening method for stone wall body |
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| CN104405139A true CN104405139A (en) | 2015-03-11 |
| CN104405139B CN104405139B (en) | 2017-01-11 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107165436A (en) * | 2016-02-17 | 2017-09-15 | 朱奎 | Brick wall reinforcing construction |
| CN107965153A (en) * | 2017-09-18 | 2018-04-27 | 山东农业大学 | The seismic hardening of dry rubble wall and reducing energy consumption integral method |
| CN109441137A (en) * | 2018-12-19 | 2019-03-08 | 西安建筑科技大学 | A kind of straw board reinforces the construction method of raw-soil wall |
| CN110306821A (en) * | 2019-06-12 | 2019-10-08 | 上海市建筑装饰工程集团有限公司 | It is a kind of for reinforcing the L-type outsourcing wall of plain brick wall |
| CN111101729A (en) * | 2019-12-31 | 2020-05-05 | 中国矿业大学 | Floor slab reinforcing method |
| CN111794551A (en) * | 2020-07-09 | 2020-10-20 | 深圳市宏源建设工程有限公司 | Strong-vibration ramp masonry wall crack prevention and treatment technology |
| CN112412084A (en) * | 2020-09-27 | 2021-02-26 | 中建四局第六建设有限公司 | Steel plate reinforcing device for opening shear wall and construction method thereof |
| CN114753668A (en) * | 2022-04-14 | 2022-07-15 | 江苏海洋大学 | Construction method for reinforcing brick masonry wall by unbonded prestressed steel wire ropes |
| CN115538809A (en) * | 2022-10-24 | 2022-12-30 | 中国矿业大学徐海学院 | House antidetonation stone wall reinforced structure |
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| CN104060796A (en) * | 2014-07-11 | 2014-09-24 | 中幕建筑装饰工程有限公司 | Stone reinforcing anchoring bolt |
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| EP1437460A1 (en) * | 2003-01-11 | 2004-07-14 | Bersche-Rolt Limited | Reinforcement of Masonry structures |
| JP2005226422A (en) * | 2004-02-10 | 2005-08-25 | Shozaburo Sato | Aseismatic reinforcing construction method of wooden building |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165436A (en) * | 2016-02-17 | 2017-09-15 | 朱奎 | Brick wall reinforcing construction |
| CN107965153A (en) * | 2017-09-18 | 2018-04-27 | 山东农业大学 | The seismic hardening of dry rubble wall and reducing energy consumption integral method |
| CN107965153B (en) * | 2017-09-18 | 2020-01-07 | 山东农业大学 | Dry-laid rubble wall seismic strengthening and energy-saving reconstruction integrated method |
| CN109441137A (en) * | 2018-12-19 | 2019-03-08 | 西安建筑科技大学 | A kind of straw board reinforces the construction method of raw-soil wall |
| CN110306821A (en) * | 2019-06-12 | 2019-10-08 | 上海市建筑装饰工程集团有限公司 | It is a kind of for reinforcing the L-type outsourcing wall of plain brick wall |
| CN111101729A (en) * | 2019-12-31 | 2020-05-05 | 中国矿业大学 | Floor slab reinforcing method |
| CN111101729B (en) * | 2019-12-31 | 2021-04-30 | 中国矿业大学 | Floor slab reinforcing method |
| CN111794551A (en) * | 2020-07-09 | 2020-10-20 | 深圳市宏源建设工程有限公司 | Strong-vibration ramp masonry wall crack prevention and treatment technology |
| CN112412084A (en) * | 2020-09-27 | 2021-02-26 | 中建四局第六建设有限公司 | Steel plate reinforcing device for opening shear wall and construction method thereof |
| CN114753668A (en) * | 2022-04-14 | 2022-07-15 | 江苏海洋大学 | Construction method for reinforcing brick masonry wall by unbonded prestressed steel wire ropes |
| CN115538809A (en) * | 2022-10-24 | 2022-12-30 | 中国矿业大学徐海学院 | House antidetonation stone wall reinforced structure |
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