Modular building wall and construction method thereof
By introducing stress buffer gaps, interlocking grooves, and alignment locking components into modular building walls, the problems of stress concentration and unreasonable structure in modular building walls are solved, thereby improving stability, thermal insulation, sound insulation, and construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG ZHONGTI CONSTR CO LTD
- Filing Date
- 2026-04-08
- Publication Date
- 2026-05-12
AI Technical Summary
Existing modular building walls lack stress buffer design at the connection between the load-bearing base and the protective system, resulting in stress concentration and easy cracking and damage; the internal structure design is unreasonable, water and electricity pipelines are inconvenient to lay, the heat insulation and sound insulation effects are poor, and the construction cost is high.
A stress buffer gap is reserved between the modular load-bearing base and the protective system and filled with elastic buffer filler. It is tightly spliced with interlocking grooves and alignment locking parts. An internal through cavity is set for water and electricity pipelines and thermal insulation and sound insulation materials. The grooves and teeth cooperate to enhance stability, and drainage and ventilation holes are provided on the outside.
It effectively buffers external stress, improves the stability and service life of the wall, enhances thermal insulation and sound insulation performance, reduces construction costs, and improves construction efficiency and quality.
Smart Images
Figure CN122013911A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of building wall technology, and more specifically, to a modular building wall and its construction method. Background Technology
[0002] With the continuous advancement of industrialized construction and green building concepts, modular building walls have emerged. Modular building walls offer advantages such as fast construction speed, controllable quality, energy efficiency, and environmental friendliness, gradually becoming a research hotspot in the construction field. However, existing modular building walls still have some shortcomings.
[0003] On the one hand, some modular building walls lack effective stress buffering design in the connection between the load-bearing base and the protective system. When the wall is affected by external loads or temperature changes, stress concentration is easily generated between the load-bearing base and the protective system, which can lead to cracks or even damage to the wall, affecting the service life and safety of the wall.
[0004] On the other hand, existing modular building walls are not rationally designed internally. For example, the cavity layout inside some walls is not scientific, the laying of water and electricity pipelines and the filling of thermal insulation and sound insulation materials are not convenient, and it is difficult to guarantee good thermal insulation and sound insulation effects. In addition, Chinese patent application number 202520207344.3 discloses a prefabricated wall, including a structural layer. The structural layer includes a steel layer one with a straight cross section and a steel layer two with a C-shaped cross section. An embedding groove is formed on the steel layer two, facing away from the steel layer one. The width of the embedding groove is equal to the thickness of the steel layer one. Concrete layers are provided on both sides of the steel layer one. The two concrete layers facing away from each other are flush with the two sides of the steel layer two. An insert for embedding into the embedding groove is formed at the end of the steel layer one facing away from the steel layer two. The insert has several threaded holes. Through holes one and two are respectively provided on the two inner walls of the embedding groove. The threaded holes, through holes one and through holes two are all used to be passed through by the same bolt. The precast wall has shortcomings: its outer surface is irregular, requiring more manpower and resources to handle during transportation and assembly; and its assembly structure makes it difficult to make small adjustments, increasing construction costs. Summary of the Invention
[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a modular building wall with good stress buffering performance and strong stability, and its construction method.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a modular building wall, comprising a modular load-bearing base, a protective system attached to the outer side of the modular load-bearing base, a stress buffer gap reserved between the protective system and the modular load-bearing base, the buffer gap being filled with elastic buffer filler, the modular load-bearing base being composed of several standard prefabricated blocks spliced together, the splicing end faces of adjacent prefabricated blocks being provided with interlocking grooves and alignment locking components, the through-cavities inside the prefabricated blocks being spliced together to form a continuous through-cavity, and the stress-bearing reinforcing ribs being distributed in a mesh-like cross pattern on the inner wall of the cavity.
[0007] The invention is further configured such that: the interlocking groove is provided with uniformly distributed tooth grooves, fastening bolt holes and expansion grooves, and the alignment locking member is provided with teeth that are adapted to the tooth grooves and adjustment holes for adjusting the spacing between adjacent precast blocks.
[0008] The present invention is further configured such that: the number of teeth on the alignment locking member is less than the number of teeth in the biting groove; when adjacent prefabricated blocks are spliced and assembled, the distance is controlled by adjusting the meshing position of the teeth on the alignment locking member and the teeth in the biting groove; and the end of the alignment locking member extending into the biting groove can move within the telescopic groove.
[0009] The present invention is further configured such that: the through cavity is provided with a horizontal main cavity for laying the main water and electricity pipelines and a vertical branch cavity for filling the composite core material of thermal insulation rock wool and sound insulation cotton.
[0010] The present invention is further configured such that: the horizontal main cavity extends through the width of the wall, and the vertical branch cavity extends along the height of the wall and is perpendicularly connected to the horizontal main cavity.
[0011] The invention is further configured such that: the teeth are made of elastic material and have a hollow structure; the alignment locking member has a channel for filling the teeth with heat-insulating fluid; after the prefabricated blocks are assembled, the teeth are filled with heat-insulating fluid so that they are in close contact with the tooth groove.
[0012] The present invention is further configured such that: the protective system is provided with a stress buffer gap, and the bottom of the outer protective system is provided with a drainage and venting hole for draining condensate inside the gap.
[0013] The present invention is further configured such that the thickness of the stress buffer gap is 5mm-15mm.
[0014] This application also provides a construction method for modular building walls, including the following steps: S1. Construction preparation: Based on the design requirements, prepare standard prefabricated blocks and assembly accessories for the modular load-bearing base, and clean the construction site. S2. Precast block splicing: Before splicing, check whether the sealing interlocking groove and the alignment locking parts on the splicing end face of the precast blocks are intact. Use hoisting equipment to lift the precast blocks to the designated position, perform preliminary positioning through the sealing interlocking groove, and then use the alignment locking parts to fix them to ensure that the adjacent precast blocks are spliced tightly. S3. Inspection of reinforcing ribs and cavities: Check whether the reinforcing ribs on the inner wall of the through-cavities inside the precast blocks are integrally formed and distributed in a mesh pattern to ensure the quality and firm connection of the reinforcing ribs. After the adjacent precast blocks are spliced, check whether the through-cavities form a continuous through-cavities. S4. Installation of water and electricity pipelines and thermal insulation and sound insulation materials: Lay the main water and electricity pipelines in the horizontal main cavity, and pay attention to the neat arrangement of the pipelines to avoid crossing and tangling. Fill the vertical branch cavities with thermal insulation rock wool and sound insulation cotton composite core material. The filling should be uniform and dense to ensure thermal insulation and sound insulation effects. S5. Positioning Slot Docking: The assembly system components are docked with the modular load-bearing base without damage through the positioning slots. Before docking, the debris in the positioning slots is cleaned to ensure smooth docking. After docking, the assembly system is further connected and fixed to ensure that it is firmly connected to the modular load-bearing base and can withstand the corresponding load. S6. Installation of the protective system: When installing the protective system on the outside of the modular load-bearing base, leave a stress buffer gap of 5mm-15mm. Use a positioning device to ensure that the gap is uniform. Fill the stress buffer gap with elastic buffer filler. During the filling process, pay attention to the compactness of the filler to avoid voids. Open drainage and venting holes at the bottom of the protective system to ensure that the condensate inside the gap can be discharged smoothly. The size and spacing of the drainage and venting holes should meet the design requirements.
[0015] The beneficial effects of this invention are: 1. The stress buffer gaps reserved between the protective system and the modular load-bearing base, along with the elastic buffer filler filling them, play a crucial role. When facing complex external stress environments, the elastic buffer filler can absorb and disperse these stresses, preventing direct stress on the wall structure. This effectively reduces damage such as cracks and deformation, significantly extending the wall's service life and ensuring the building's safety and stability. The modular load-bearing base is composed of several standard precast blocks. The sealing interlocking grooves and alignment locking devices at the joint ends of adjacent precast blocks play a vital role. The sealing interlocking grooves ensure a tight fit at the joints, preventing moisture and air penetration and improving the wall's waterproof and moisture-proof performance. The alignment locking devices ensure accurate splicing and a firm connection between the precast blocks, making the connected cavity continuous after splicing, further enhancing the wall's integrity and stability.
[0016] 2. The evenly distributed grooves within the interlocking slots mesh with the matching teeth on the alignment locking components, significantly increasing the friction and interlocking force between adjacent precast blocks, resulting in a more robust joint. When the wall is subjected to external forces, the meshing of the grooves and teeth effectively resists displacement and deformation, ensuring the overall structural stability of the wall. The adjustment holes on the alignment locking components greatly facilitate wall installation. During the assembly of precast blocks, construction workers can use appropriate tools through the adjustment holes to precisely adjust the spacing between adjacent precast blocks. This function makes wall installation more accurate and better adaptable to different architectural design requirements and actual construction site conditions. Even if there are certain dimensional errors during the precast block production process, fine adjustments can be made through the adjustment holes to ensure the flatness and verticality of the wall, improving construction quality. The number of teeth on the alignment locking element is less than the number of grooves in the interlocking groove, which brings great flexibility to the splicing of adjacent precast blocks. Construction workers can precisely control the distance between adjacent precast blocks by adjusting the meshing position of the teeth on the alignment locking element and the grooves in the interlocking groove according to actual building needs. The expansion groove allows the alignment locking element to move within a certain range, further improving the efficiency of wall splicing.
[0017] 3. The horizontal main cavity runs through the width of the wall, facilitating the laying of water and electricity pipelines. Construction workers can centrally lay these pipelines within the horizontal main cavity, avoiding haphazardly cutting grooves in the wall and reducing damage to the wall structure. This also makes the pipeline installation neater and more orderly. The vertical branch cavities extend along the height of the wall and are perpendicularly connected to the horizontal main cavity, maximizing the rational use of space. These vertical branch cavities are filled with a composite core material of thermal insulation rock wool and sound insulation cotton, effectively improving the wall's thermal insulation and sound insulation performance. The thermal insulation rock wool prevents heat transfer, reducing heat exchange between indoors and outdoors and lowering building energy consumption, while the sound insulation cotton absorbs and blocks external noise, creating a quiet and comfortable indoor environment.
[0018] 4. The protective system incorporates stress-buffered gaps to effectively buffer external stresses, protect the structure of the protective system, and extend its service life. Drainage and ventilation holes are located at the bottom of the outer side of the protective system, allowing condensate to drain smoothly, keeping the gaps dry. These holes also ensure airflow within the gaps, creating a more stable internal environment and further enhancing the protective effect. When the thickness of the stress-buffered gap is less than 5mm, the small gap cannot provide sufficient space for stress release, significantly reducing its buffering effect. When the thickness exceeds 15mm, the gap is too large, weakening the connection and coordination between different parts of the protective system, potentially leading to structural swaying, displacement, and other problems, thus deteriorating the overall structural integrity of the protective system. Therefore, a stress-buffered gap thickness of 5mm-15mm is optimal. This suitable range ensures that the gap effectively buffers stress, protecting the structural safety of the protective system, while also meeting the requirements of structural stability, space utilization, and energy conservation. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a sectional view of the precast block; Figure 3 This is a three-dimensional structural diagram of the alignment and locking mechanism; Figure 4 This is a cross-sectional view of the engagement groove and the alignment locking element when they are connected. Figure 5 A flowchart illustrating an embodiment of a construction method for modular building walls; Figure 1-5 Reference numerals: 1. Modular load-bearing base; 2. Protection system; 3. Buffer gap; 4. Elastic buffer filler; 5. Engagement groove; 6. Alignment locking element; 7. Tooth groove; 8. Fastening bolt hole; 9. Expansion groove; 10. Tooth; 11. Adjustment hole; 12. Horizontal main cavity; 13. Vertical branch cavity; 14. Drainage and ventilation hole; 15. Precast block; 16. Pipeline. Detailed Implementation
[0020] Reference Figure 1-5 The embodiments of the present invention will be further described below.
[0021] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0022] Moreover, relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.
[0023] Figures 1 to 5 The diagram illustrates a modular building wall, comprising a modular load-bearing base 1. A protective system 2 is attached to the outer side of the modular load-bearing base 1. A stress buffer gap 3 is reserved between the protective system 2 and the modular load-bearing base 1. The buffer gap 3 is filled with elastic buffer filler 4. When facing complex external stress environments, the elastic buffer filler 4 can absorb and disperse these stresses, preventing stress from acting directly on the wall structure. This effectively reduces damage such as cracks and deformation in the wall, greatly extends the service life of the wall, and ensures the safety and stability of the building. The modular load-bearing base 1 is composed of several standard prefabricated blocks 15 spliced together. The splicing end faces of adjacent prefabricated blocks 15 are provided with interlocking grooves 5 and alignment locking parts 6. The sealing interlocking grooves 5 can ensure a tight fit at the splice, prevent the penetration of moisture and air, and improve the waterproof and moisture-proof performance of the wall. The alignment locking parts 6 ensure accurate splicing and firm connection between the prefabricated blocks 15. The through-cavity inside the prefabricated blocks 15 forms a continuous through-cavity after splicing. The stress-bearing reinforcing ribs are distributed in a mesh pattern on the inner wall of the cavity, further enhancing the integrity and stability of the wall.
[0024] The interlocking groove 5 is provided with evenly distributed toothed grooves 7, fastening bolt holes 8, and expansion grooves 9. The alignment locking member 6 is provided with teeth 10 that match the toothed grooves 7 and adjustment holes 11 for adjusting the spacing between adjacent precast blocks 15. The evenly distributed toothed grooves 7 in the interlocking groove 5 and the teeth 10 that match the alignment locking member 6 interlock with each other, greatly increasing the friction and interlocking force between adjacent precast blocks 15, making the splicing more secure. When the wall is subjected to external forces, the cooperation of the toothed grooves 7 and teeth 10 can effectively resist displacement and deformation, ensuring the overall structural stability of the wall. The adjustment holes 11 on the alignment locking member 6 provide great convenience for the installation of the wall. When splicing precast blocks 15, construction workers can use appropriate tools through the adjustment holes 11 to precisely adjust the spacing between adjacent precast blocks 15. This function makes the installation of the wall more precise and can better adapt to different architectural design requirements and actual conditions on the construction site. Even if there are certain dimensional errors in the production process of precast blocks 15, they can be finely adjusted through the adjustment holes 11 to ensure the flatness and verticality of the wall and improve the construction quality.
[0025] The number of teeth 10 on the alignment locking member 6 is less than the number of grooves 7 in the interlocking groove 5, which brings great flexibility to the splicing of adjacent precast blocks 15. Construction workers can precisely control the distance between adjacent precast blocks 15 by adjusting the meshing position of the teeth 10 on the alignment locking member 6 and the grooves 7 in the interlocking groove 5 according to actual building needs. The expansion groove 9 allows the alignment locking member 6 to move within a certain range, further improving the wall splicing efficiency.
[0026] The through-type cavity includes a horizontal main cavity 12 for laying the main water and electricity pipelines and a vertical branch cavity 13 for filling with composite core material of thermal insulation rock wool and sound insulation cotton. This facilitates the laying of water and electricity pipelines. Construction workers can concentrate the main water and electricity pipelines in the horizontal main cavity 12, avoiding random trenching and wiring in the wall, reducing damage to the wall structure, and making the pipeline installation more neat and orderly. The vertical branch cavity 13 is filled with composite core material of thermal insulation rock wool and sound insulation cotton, which can effectively improve the thermal insulation and sound insulation performance of the wall. Thermal insulation rock wool can prevent heat transfer, reduce the exchange of heat between indoors and outdoors, and reduce the building's energy consumption, while sound insulation cotton can absorb and block external noise, creating a quiet and comfortable indoor environment.
[0027] The horizontal main cavity 12 extends along the width of the wall, and the vertical branch cavity 13 extends along the height of the wall and is perpendicularly connected to the horizontal main cavity 12, offering several significant advantages. It provides an orderly passage for pipeline laying, facilitating construction and reducing pipeline interference, improving safety, forming a natural ventilation system to achieve air convection for energy-saving heat dissipation, ensuring normal equipment operation, effectively blocking sound transmission, enhancing sound insulation, reducing wall weight, lowering foundation load requirements and construction costs, facilitating transportation and installation, and also enabling wall renovation and upgrades without large-scale demolition and reconstruction, saving time and costs, and minimizing the impact on the normal use of the building.
[0028] The teeth 10 are made of elastic material and have a hollow structure. They are used in conjunction with the channels 16 in the alignment locking member 6 for filling with insulating fluid. After the prefabricated blocks are assembled, the insulating fluid is filled in, allowing the teeth 10 to fit tightly with the grooves 7. This tight contact greatly enhances the structural stability of the prefabricated block joints, effectively preventing loosening or displacement at the joints, and improving the reliability of the entire structure. Secondly, the filled insulating fluid provides good insulation, reducing heat loss.
[0029] The protective system 2 is equipped with a stress buffer gap 3, which effectively buffers external stress, protects the structure of the protective system 2, and extends its service life. A drainage and venting hole 14 is provided at the bottom of the outer side of the protective system 2, allowing condensate to drain smoothly and keeping the gap dry. Simultaneously, the drainage and venting hole 14 ensures air circulation within the gap, making the internal environment of the protective system 2 more stable and further enhancing its protective effect.
[0030] When the thickness of the stress buffer gap 3 is less than 5mm, the small gap cannot provide enough space for stress release, and its buffering effect will be greatly reduced. When the thickness of the stress buffer gap 3 exceeds 15mm, the gap is too large, and the connection and collaborative working ability between the various parts of the protection system 2 will be weakened, which may lead to problems such as structural shaking and displacement, and deteriorate the overall structural integrity of the protection system 2. Therefore, the optimal thickness of the stress buffer gap 3 is 5mm-15mm. The appropriate range can ensure that the buffer gap 3 can effectively play its role in buffering stress and protecting the structural safety of the protection system 2, while also taking into account the requirements of structural stability, space utilization and energy conservation of the building.
[0031] This application also provides a construction method for modular building walls, including the following steps: S1. Construction preparation: According to the design requirements, prepare the standard precast blocks 15 of the modular load-bearing base 1 and the assembly accessories, and clean the construction site. S2. Precast block 15 splicing: Before splicing, check whether the sealing interlocking groove 5 and the alignment locking part 6 on the splicing end face of the precast block 15 are intact. Use hoisting equipment to hoist the precast block 15 to the designated position, perform preliminary positioning through the sealing interlocking groove 5, and then use the alignment locking part 6 to fix it to ensure that the adjacent precast blocks 15 are spliced tightly. S3. Inspection of reinforcing ribs and cavities: Check whether the reinforcing ribs on the inner wall of the through-cavity inside the precast block 15 are integrally formed and distributed in a mesh pattern to ensure the quality and firm connection of the reinforcing ribs. After the adjacent precast blocks 15 are spliced, check whether the through-cavity forms a continuous through-cavity. S4. Installation of water and electricity pipelines and thermal insulation and sound insulation materials: Lay the main water and electricity pipelines in the horizontal main cavity 12, and pay attention to the neat arrangement of the pipelines to avoid crossing and tangling. Fill the vertical branch cavity 13 with thermal insulation rock wool and sound insulation cotton composite core material. The filling should be uniform and dense to ensure thermal insulation and sound insulation effects. S5. Positioning slot docking: The assembly system components are docked with the precast blocks without damage through the alignment locking parts. Before docking, the debris in the interlocking groove is cleaned to ensure smooth docking. After docking, the assembly system is further connected and fixed to ensure that it is firmly connected to the precast blocks and can withstand the corresponding load. After installation, the teeth are filled with thermal insulation fluid to make them tightly connected to the teeth. S6. Installation of Protective System 2: When installing the protective system 2 on the outside of the modular load-bearing base 1, leave a stress buffer gap 3 of 5mm-15mm. Use a positioning device to ensure that the gap is uniform. Fill the stress buffer gap 3 with elastic buffer filler 4. During the filling process, pay attention to the compactness of the filler to avoid voids. Open drainage and venting holes 14 at the bottom of the protective system 2 to ensure that the condensate inside the gap can be discharged smoothly. The size and spacing of the drainage and venting holes 14 should meet the design requirements.
[0032] Construction preparation ensures that materials and site conditions meet requirements, laying the foundation for construction. The tight splicing of precast blocks 15 enhances the stability of the wall structure. Reinforcing ribs and cavity inspections ensure the wall's load-bearing capacity and pipeline layout conditions. The installation of water and electricity pipelines and thermal and sound insulation materials improves the wall's functionality and safety. Positioning slots ensure a firm connection between the assembly system and the substrate while reducing damage. The installation of the protective system 2, with reserved buffer gaps 3, filling material, and drainage and ventilation holes 14, enhances the wall's stress resistance and moisture resistance. Overall, this comprehensively improves the wall's quality, performance, and service life, providing strong support for high-quality construction and long-term use. The above description is only a preferred embodiment of the present invention and is not intended to limit the invention. Ordinary changes and substitutions made by those skilled in the art within the scope of the present invention should be included within the protection scope of the present invention.
Claims
1. A modular building wall, comprising a modular load-bearing base (1), characterized in that, The modular load-bearing base (1) is fitted with a protective system (2) on the outside. A stress buffer gap (3) is reserved between the protective system (2) and the modular load-bearing base (1). The buffer gap (3) is filled with elastic buffer filler (4). The modular load-bearing base (1) is composed of several standard prefabricated blocks (15). The splicing end faces of adjacent prefabricated blocks (15) are provided with interlocking grooves (5) and alignment locking parts (6). The through-cavities inside the prefabricated blocks (15) are spliced to form a continuous through-cavity. The stress-bearing reinforcing ribs are distributed in a mesh pattern on the inner wall of the cavity.
2. A modular building wall according to claim 1, characterized in that, The interlocking groove (5) is provided with evenly distributed tooth grooves (7), fastening bolt holes (8) and telescopic grooves (9). The alignment locking member (6) is provided with teeth (10) that are adapted to the tooth grooves (7) and adjustment holes (11) for adjusting the distance between adjacent precast blocks (15).
3. A modular building wall according to claim 2, characterized in that, The number of teeth (10) on the alignment locking member (6) is less than the number of teeth (7) in the biting groove (5). When adjacent prefabricated blocks (15) are spliced and assembled, the distance is controlled by adjusting the meshing position of the teeth (10) on the alignment locking member (6) and the teeth (7) in the biting groove (5). The end of the alignment locking member (6) extending into the biting groove (5) can move in the telescopic groove (9).
4. A modular building wall according to claim 1, characterized in that, The through-cavity includes a horizontal main cavity (12) for laying the main water and electricity pipelines and a vertical branch cavity (13) for filling with composite core materials of thermal insulation rock wool and sound insulation cotton.
5. A modular building wall according to claim 4, characterized in that, The horizontal main cavity (12) extends along the width of the wall, and the vertical branch cavity (13) extends along the height of the wall and is perpendicularly connected to the horizontal main cavity (12).
6. A modular building wall according to claim 2, characterized in that, The teeth (10) are made of elastic material and have a hollow structure. The alignment locking member (6) has a channel (16) for filling the teeth (10) with heat-insulating fluid. After the prefabricated blocks are assembled, heat-insulating fluid is filled into the teeth (10) so that they are in close contact with the tooth groove (7).
7. A modular building wall according to claim 1, characterized in that, The protective system (2) is provided with a stress buffer gap (3), and the bottom of the outer protective system (2) is provided with a drainage and vent hole (14) for draining the condensate inside the gap.
8. A modular building wall according to claim 7, characterized in that, The thickness of the stress buffer gap (3) is 5mm-15mm.
9. A construction method for a modular building wall according to claims 1-8, characterized in that, Includes the following steps: S1. Construction preparation: According to the design requirements, prepare the standard precast blocks and assembly accessories of the modular load-bearing base (1), and clean the construction site; S2. Precast block splicing: Before splicing, check whether the sealing interlocking groove (5) and the alignment locking part (6) on the splicing end face of the precast block are intact. Use hoisting equipment to hoist the precast block to the designated position, perform preliminary positioning through the sealing interlocking groove (5), and then use the alignment locking part (6) to fix it to ensure that the adjacent precast blocks are spliced tightly. S3. Inspection of reinforcing ribs and cavities: Check whether the reinforcing ribs on the inner wall of the through-cavities inside the precast blocks are integrally formed and distributed in a mesh pattern to ensure the quality and firm connection of the reinforcing ribs. After the adjacent precast blocks are spliced, check whether the through-cavities form a continuous through-cavities. S4. Installation of water and electricity pipelines and thermal insulation and sound insulation materials: Lay the main water and electricity pipelines in the horizontal main cavity (12), and pay attention to the neat arrangement of the pipelines to avoid crossing and tangling. Fill the vertical branch cavity (13) with thermal insulation rock wool and sound insulation cotton composite core material. The filling should be uniform and dense to ensure thermal insulation and sound insulation effects. S5. Positioning slot docking: The assembly system components are docked with the precast blocks without damage through the alignment locking parts (6). Before docking, the debris in the interlocking groove (5) is cleaned to ensure smooth docking. After docking, the assembly system is further connected and fixed to ensure that it is firmly connected to the precast blocks and can withstand the corresponding load. After installation, the teeth (10) are filled with heat insulation fluid to make them tightly connected with the tooth groove (7). S6. Installation of protective system (2): When installing the protective system (2) on the outside of the modular load-bearing base (1), a stress buffer gap (3) of 5mm-15mm is reserved. The positioning device is used to ensure that the gap is uniform. The elastic buffer filler (4) is filled in the stress buffer gap (3). During the filling process, attention should be paid to the compactness of the filler to avoid voids. Drainage and ventilation holes (14) are opened at the bottom of the protective system (2) to ensure that the condensate inside the gap can be discharged smoothly. The size and spacing of the drainage and ventilation holes (14) should meet the design requirements.