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33 results about "Structural rehabilitation" patented technology

Home / Services / Structural Rehabilitation. Structural rehabilitation involves the upgrading or changing of a building’s foundation in support of changes in the building’s owners, its use, design goals or regulatory requirements.

Reorganization and repair of an ICF catalog while open and in-use in a digital data storage system

MVS mainframe computer systems employ the ICF (Integrated Catalog Facility) catalog environment to manage numerous data sets. To provide 24×7 availability of those data sets, the BCS (250,270) must be re-organized while leaving the catalog open to access by applications. To perform a re-org while open, a data CI correlation table (500) is constructed (314) and used to lay the data CIs into a backup file in logical order (316), so that they can be loaded into the new BCS (324) without sorting, thereby reducing downtime. Additionally, if the BCS is damaged during normal operation, repair of the structure must also be performed to ensure that correct access is maintained to all data that is cataloged in the BCS. Throughout the re-org process, structural integrity checks are performed on the data and index component of the BCS, and if errors are encountered, they can be repaired.
Owner:ROCKET SOFTWARE

System and method for remote and automatic assessment of structural damage and repair

Structural analysis automation allows the implementation of more detailed or accurate analysis methodology that reflects the actual behavior of the damaged or repaired structure and consequently improves the resulting damage disposition for example by Increasing the allowable damages and structural repairs applicability, increasing the allowable damage limits causing the reduction of unnecessary installation of structural repairs, optimizing repairs and increasing fly-by periods and inspection intervals.
Owner:EMBRAER SA

Image restoring method

InactiveCN101777178APrevent continuous expansionImprove repair effectImage enhancementAlgorithmDecomposition
The invention relates to an image restoring method, which comprises the following steps: firstly carrying out direction and experience model decomposition on a target image, allowing to draw damaged edge structure information in a given area to be restored according to the existing information, utilizing a frequency characteristic value obtained by the direction and experience model decomposition to calculate similarity so as to firstly finish edge structure restoration in the whole damaged area, then combining degree of confidence to calculate the priority of a residual filling area according to gradient characteristics of pixel points on the boundary of the area to be restored, and utilizing a frequency characteristic value obtained by the decomposition again to calculate similarity so as to finish the restoration of corresponding areas. The method not only can restore the structure and texture information in a larger-scale defective area, but also can restore the images with certain sheltering relation. The robustness in the restoring process is high, thus effectively preventing continuous expansion of error information.
Owner:NANJING UNIV

Reorganization and repair of an ICF catalog while open and in-use in a digital data storage system

MVS mainframe computer systems employ the ICF (Integrated Catalog Facility) catalog environment to manage numerous data sets. To provide 24×7 availability of those data sets, the BCS (250,270) must be re-organized while leaving the catalog open to access by applications. To perform a re-org while open, a data CI correlation table (500) is constructed (314) and used to lay the data CIs into a backup file in logical order (316), so that they can be loaded into the new BCS (324) without sorting, thereby reducing downtime. Additionally, if the BCS is damaged during normal operation, repair of the structure must also be performed to ensure that correct access is maintained to all data that is cataloged in the BCS. Throughout the re-org process, structural integrity checks are performed on the data and index component of the BCS, and if errors are encountered, they can be repaired.
Owner:ROCKET SOFTWARE

Skylight-forming lining structure repair method for tunnels

The invention discloses a skylight-forming lining structure repair method for tunnels. A local skylight is formed after original flawed concrete is removed and then closed through layered mesh concrete after lining repair steel bars are embedded, and then the original flawed part and surrounding qualified linings are connected into a whole through anchor rods, steel bar meshes, steel bar drilling nails and mesh concrete. The skylight-forming lining structure repair method is mainly used for repairing the diseases that tunnel lining concrete severely lacks thickness or strength or voids are formed in the backs of the linings, is easy to implement and can be used for repairing lining structures, the repair method and process are fast and effective, the repair time can be greatly shortened, and the construction process safety and the structural safety can be guaranteed. The skylight-forming lining structure repair method is especially suitable for reinforcing the tunnel linings of railways in operation and can bring great economic benefits.
Owner:CENT SOUTH UNIV

Distribution network expansion planning method based on strategy adaption differential evolution

The invention discloses a distribution network expansion planning method based on strategy adaption differential evolution. A capital time value is considered, calculation is carried out according to equal amount installment payment capital recovery, a model is established by taking least annual investment and operation maintenance cost as a target, a differential evolution algorithm based on strategy adaption on the basis of the model is proposed, an optimal solution obtained by the algorithm is decoded, a planning line is drawn on an electric power GIS (geographic information system) platform according to a line number obtained by decoding to carry out structure repair to an individual, and the individual is enabled to satisfy a radiative network structure. An adaption evolutionary strategy is continuously updated in an iteration process to prevent the algorithm from being trapped in local optimum, and a planning process of a distribution network line is enabled to exhibit better interactivity, more intuitive planning result and flexibility in planning scheme regulation by a GIS.
Owner:杭州中威智能科技有限公司 +1

Structure rehabilitation and enhancement

A system and a method for enhancement of structural integrity is provided where a reinforcement system in accordance with the present invention is coupled with a compression side of a structure. The reinforcement system includes a tension layer with a high tensile strength coupled with an exterior surface of a compression layer with high compression strength, with the tension layer directly coupled with the structure.
Owner:ISES HLDG

Rapid checking method for damage of modal test-based spaceborne antenna structure

The invention discloses a rapid checking method for damage of a modal test-based spaceborne antenna structure. The rapid checking method comprises the steps as follows: carrying out modal analysis on the spaceborne antenna structure to initially estimate modal parameters of the spaceborne antenna structure; establishing a rapid modal test system to detect modal characteristics of the spaceborne antenna structure before a vibration test; and finally, detecting the modal characteristics of the spaceborne antenna structure again after the vibration test. Whether the spaceborne antenna structure is damaged and damage position, damage form, damage degree and the like are judged through change trend of the modal characteristics. After the damaged spaceborne antenna structure is repaired, effect of repairing the spaceborne antenna structure is judged through detecting changes of the modal characteristics before and after being repaired. The rapid checking method has the advantages of rapidness, simplicity, easiness in quantification, lower cost and the like, can be widely applied to the spaceborne antenna structure and various space structures, and is strong in practicality and market competiveness in the field of the spaceborne antenna structure.
Owner:XIAN INSTITUE OF SPACE RADIO TECH

Construction plant for repairing and strengthening tunnel lining structures

The invention relates to a construction plant for repairing and strengthening tunnel lining structures. The construction plant is characterized by comprising a running gear, any ring construction device (1 to 8) required in the invention, a lifting device with a lifting platform, a control device for controlling the construction plant to work and a driving device for driving a supporting arm to rotate. The lifting device is installed on the running gear; the ring construction device and the driving device are both installed on the lifting platform; and the control device is installed on the running gear. The construction plant has the beneficial effects that the construction flow is mastered through the plant, the automatic degree is high, a person does not need to enter a tunnel for construction, and the labor cost is saved; the mechanized construction quality is higher than the manual construction quality, coating of epoxy resin glue is even, a carbon fiber sheet is tightly and smoothly bonded, and the repairing and strengthening effect and the construction efficiency are guaranteed; and the construction plant is suitable for repairing and strengthening construction of the tunnel lining structures in different sizes, suitable for construction under various weather conditions and engineering environments and good in engineering adaptability.
Owner:HOHAI UNIV

Concrete structure repairing method based on carbonization hardening

The invention discloses a concrete structure repairing method based on carbonization hardening. The concrete structure repairing method comprises the following steps: cleaning an area that needs repairing; filling or smearing a repairing material, wherein the repairing material is prepared from the following components in parts by weight: 100 parts of a carbonized cementing material, 1 to 10 partsof a carbonization reinforcing agent, 5 to 70 parts of fine aggregate, 2 to 6 parts of a water reducing agent and 6 to 16 parts of water; sealing the to-be-repaired area by using a sealing device; and introducing carbon dioxide repairing gas into the closed to-be-repaired area. Based on a carbonization hardening principle, the repairing material is high in strength development speed and strengthgrade, and the repaired area can be quickly put into the service process. The volume of the repairing material can slightly expand in the carbonization process, the volume stability is excellent in the later service process, the repairing material is tightly combined with a matrix, the cohesiveness is high, and the falling phenomenon is not likely to occur. The fluidity of the repair slurry can bedesigned and regulated, the repair slurry is suitable for various processes such as smearing, spraying and irrigation, and the engineering applicability is high.
Owner:WUHAN UNIV OF TECH

Multi-azimuth repairing method for damaged historic building column

The invention discloses a multi-azimuth repairing method for a damaged historic building column.For the defects in the prior art, the method comprises the steps that the whole repairing process is divided into structure repairing, color repairing and fire preventing repairing; in the structure repairing process, complete repairing of the column is achieved through the steps of mending treatment achieved by replacing a damaged part, cleaving treatment, pouring and reinforcing and column splicing, a firm structure is given to a historic building again, the capacity of the historic building for resisting natural disasters is improved, the structural firmness is guaranteed, and the service life is indirectly prolonged; in the color repairing process, a column image is processed through a partitioning algorithm, an ideal repairing effect is calculated, a new appearance is given to the historic building, the appearance is more attractive, and not only is the original style and features of the historic building are reserved, but also aesthetic appreciation of modern people is met; by means of fire preventing repairing, the fireproof property of the historic building is enhanced, the fire-resistant level is improved, and the occurrence probability of safety accidents is reduced.
Owner:ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER

Discretely Tailored Multi-Zone Bondline for Fail-Safe Structural Repair

A repair patch for reworking an inconsistent area of a composite structure includes a patch body adapted to cover the inconsistent area and having a first patch region, a second patch region outside the first patch region and a first separation zone between the first patch region and the second patch region, with the first patch region, the first separation zone and the second patch region having increasing interlaminar fracture toughness from a center to an edge of the patch body; and a layer of adhesive for bonding the patch body to the composite structure.
Owner:THE BOEING CO

Hollow identifier-based method for preserving structure and enhancing real identifier hiding

The invention discloses a hollow identifier-based method for preserving a structure and enhancing real identifier hiding. The method comprises the following steps: obtaining a video frame of a to-be-hidden identifier from camera equipment; calculating a three-dimensional position and orientation, relative to an identifier, of a camera according to a two-dimensional position of the identifier; projecting a hollow area mask of a hollow identifier onto a plane where the identifier is located, so as to determine a to-be-repaired mask in a video picture; automatically detecting information of a background structure adjacent to a to-be-repaired area according to the to-be-repaired mask, so as to obtain background structure characteristics; repairing the detected background structure according to the background structure characteristics, so as to obtain a structure repair image and a structure to-be-repaired mask; and utilizing an existing image repair algorithm to carry out repair hiding on a non-structure identifier according to the structure repair image and the structure to-be-repaired mask, so as to obtain a final repair effect image. According to the hollow identifier, the to-be-repaired area after identifier removal is decreased, relatively strong structural performance can be preserved during the identifier hiding, and the identifier hiding efficiency and effect are improved.
Owner:ZHEJIANG UNIV OF TECH

Historic building wood structure in-situ repairing method and system

The invention belongs to the technical field of historic building wood structure repairing, and discloses a historic building wood structure in-situ repairing method and system. The historic buildingwood structure in-situ repair system comprises a field exploration module, a data acquisition module, a data processing module, a data analysis module, a main control module, a repair positioning module, a wood structure reinforcing module, a field cleaning module, a repair plan making module, a construction repair module, a repair surface maintenance module and a repair detection acceptance module, a repair site restoration module, a data storage module, and a display module. According to the historic building wood structure in-situ repairing method, different modes are adopted for repairingin a targeted mode according to different damage conditions of the surface of a historic building wood structure, under the condition that the original wood supporting strength of a historic buildingis ensured, the use amount of wood for repairing is reduced, the required construction period for repairing the historic building is shortened, and the repairing efficiency of the historic building wood structure is greatly improved.
Owner:湖南南派古建园林工程有限公司

Frame column replacement and reinforcement construction method

ActiveCN113756601ASolve the problem of replacement reinforcementHigh construction technology contentBuilding repairsArchitectural engineeringEconomic benefits
The invention relates to a frame column replacement and reinforcement construction method, and belongs to the technical field of completed building structure repair. The frame column replacement and reinforcement construction method comprises the steps of firstly, correspondingly arranging supporting steel columns in the four directions of to-be-replaced frame columns of the layer and the four directions of upper and lower frame columns, and arranging jacks between the supporting steel columns and beam bottoms; then removing all the to-be-replaced frame columns, wherein the tops are removed to the upper ground; then installing a column formwork, wherein the top of the column formwork is designed to be a horn mouth formwork higher than the upper ground; then pouring concrete and curing from the horn mouth formwork on the upper layer; and finally, removing the formwork and the supporting steel columns. The method has the advantages of advanced construction process, high construction technical content, high operability, close procedure connection and fast construction progress, the construction cost is reduced while the construction quality is guaranteed, obvious economic benefits are generated, and the method is worthy of application and popularization.
Owner:SHANXI WUJIAN GRP CO LTD

A construction method for repairing wooden structures of ancient buildings

The invention discloses an ancient wood building repairing construction method which comprises the following steps: (a) performing scene investigation; (b) erecting a scaffold; (c) reinforcing a wood structure; (d) performing wood structure preservative treatment; (e) performing fireproof treatment on the wood structure; (f) performing field arrangement; (g) performing wood structure engineering acceptance. According to the method disclosed by the invention, the current situation in which the wood structure is positioned can be comprehensively mastered, the ancient wood building is subjected to reinforcement and protection through overall reinforcement and single wood reinforcement, the stress performance of the wood structure is improved under the condition that the original structure is not damaged, overall design of the ancient wood building is guaranteed, collapse of the ancient building is avoided, the corrosion resistance of the wood structure is improved due to the wood structure preservative treatment, the safety performance of the wood structure is improved due to fireproof treatment of the wood structure, the service life of the ancient building is prolonged, the aesthetic property of the ancient building is improved, and the method has obvious social and economic values.
Owner:ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER

A structural repair and reinforcement method for concrete chimneys and cooling towers

ActiveCN113187261BSolve the problem of repair and reinforcementFix performance issuesBuilding repairsCooling towerArchitectural engineering
The invention relates to the field of building materials, and discloses a structural repair and reinforcement method for concrete chimneys and cooling towers. The invention includes six different repair and reinforcement schemes according to different types of concrete defects, which can repair and reinforce the defects in a targeted manner and maximize the To maximize the advantages of the characteristics of repair and reinforcement materials. The six types of defects are: (1) the repair depth is not greater than 5cm; (2) the repair depth is greater than 5cm and less than or equal to 1 / 3 of the structural thickness; (3) the repair depth is greater than 1 / 3 of the structural thickness and less than or equal to 2 / 3 of the thickness of the structure; (4) The depth of repair is equal to the thickness of the structure; (5) The reinforcement and repair of cracks in the concrete structure; (6) The reinforcement and repair of the internal damage of the concrete.
Owner:北京固斯特国际化工有限公司

Construction technology for large-area structural repair systems

The invention relates to a construction process for a large-area structure repair system, which includes the following process steps: S1 base-level treatment of the wall: removing loose parts of the wall, and cleaning the surface of the wall; S2 interface treatment of the wall: Wet the wall, and when the surface of the wall is dry and the inside is wet, use an interface agent to coat the surface of the wall and form an interface layer; S3 wall repair: After the interface layer is dry, use repair mortar to repair the wall Coarse leveling and forming a repair layer; plastering treatment of S4 wall: after the repair layer is dry, use plastering mortar and water to uniformly mix plastering mortar slurry to form a plastering layer; plastering treatment of S5 wall : After the plastering layer is dried, the plastering mortar slurry is uniformly mixed with water for plastering and forming a plastering layer. The invention has the advantages of strong bonding strength and anti-sag performance between large-area structure repair systems.
Owner:北京建工新型建材有限责任公司

A foundation pit support repair structure and its construction method

The invention discloses a foundation pit supporting and repairing structure. A repairing expansion ring is provided with two coiling ends, the two coiling ends of the repairing expansion ring can moverelative to each other, and at least two one-way locking mechanisms are arranged between the two coiling ends of the repairing expansion ring; the one-way locking mechanisms are used for limiting theretraction motions of the two coiling ends of the repairing expansion ring. A repairing frame comprises two mounting rubber rings which sleeve the repairing expansion ring and are arranged up and down, and a plurality of reinforcing steel bars are circumferentially arranged between the two mounting rubber rings at equal intervals; after an air bag body is inflated, the inner diameter of the repairing expansion ring can be driven to expand so that the mounting rubber rings can be tightly attached to the inner wall of a foundation pit support row pile, and the two mounting rubber rings, the outer wall of the repairing expansion ring and the inner wall of the foundation pit support row pile define a grouting space. A grouting pipe is used for introducing concrete slurry into the grouting space. The structure has the advantage of being high in foundation pit support row pile repairing convenience.
Owner:广东建基基础工程有限公司

A top-type prestressed reinforcement machine used in the field of building structure repair and reinforcement

ActiveCN113047656BRealize automatic dischargeLow strength utilizationBuilding repairsFiberCarbon fibers
The invention provides a top-type prestressed reinforcement machine used in the field of building structure repair and reinforcement, which includes a housing, the right end of which is fixedly connected with a repair device, and four lifting blocks are evenly arranged at the lower end of the housing, so that The top of the housing is rotated with a rubberizing wheel, and the top of the housing is fixed with a feeding mechanism, and the feeding mechanism is connected with a tensioning wheel through carbon fiber cloth, and the tensioning wheel and the rubberizing wheel are in the same position. Horizontal plane, by setting the tension wheel to solve the problem proposed in the background technology when using carbon fiber cloth for reinforcement, if no prestress is applied to the reinforced carbon fiber cloth, only when the repaired component is subjected to secondary force and the structure is further deformed, the carbon fiber cloth can be used. Participating in the work, the strength utilization rate of the material is extremely low, the stiffness improvement is limited, and the improvement effect on the bearing capacity and deformation effect of the structural members is very limited.
Owner:GUANGZHOU SHENGTE BUILDING TECH DEVCO

A structure-preserving augmented reality logo hiding method based on hollow logo

The invention discloses a hollow identifier-based method for preserving a structure and enhancing real identifier hiding. The method comprises the following steps: obtaining a video frame of a to-be-hidden identifier from camera equipment; calculating a three-dimensional position and orientation, relative to an identifier, of a camera according to a two-dimensional position of the identifier; projecting a hollow area mask of a hollow identifier onto a plane where the identifier is located, so as to determine a to-be-repaired mask in a video picture; automatically detecting information of a background structure adjacent to a to-be-repaired area according to the to-be-repaired mask, so as to obtain background structure characteristics; repairing the detected background structure according to the background structure characteristics, so as to obtain a structure repair image and a structure to-be-repaired mask; and utilizing an existing image repair algorithm to carry out repair hiding on a non-structure identifier according to the structure repair image and the structure to-be-repaired mask, so as to obtain a final repair effect image. According to the hollow identifier, the to-be-repaired area after identifier removal is decreased, relatively strong structural performance can be preserved during the identifier hiding, and the identifier hiding efficiency and effect are improved.
Owner:ZHEJIANG UNIV OF TECH

Method and system for local translation correction of large chassis structure

The invention provides a method and system for rectifying partial translation of a large chassis structure. The position where the displacement deviation of the large chassis structure engineering is detected is defined as a pre-cut structure; the structural main bodies on both sides of the local translation pre-cut structure of the large chassis structure are supported; through limited The element software simulates and calculates, and strengthens the main body of the structure; introduces the historical monitoring data of the site as the initial condition into the finite element calculation software, and arranges new dynamic monitoring measuring points for the main body of the structure; performs stress release on the soil on the other side of the translation , to form an operable space for underground horizontal pushback; cut off the connection between the pre-cut structure and the main body of the structure on the vertical plane, and become a free and independent rigid body that can be pushed; install horizontal graded loading on the translation side of the free independent rigid body The device applies an external force to move a free and independent rigid body; after the movement is completed and reaches a stable state, the structural main body of the cut structure is repaired. After the repair is completed, the soil is backfilled and the deviation correction is completed.
Owner:浙江瑞邦科特检测有限公司

A carbonation hardening based concrete structure repair method

The invention discloses a concrete structure repair method based on carbonation hardening, which comprises the following steps: cleaning the area to be repaired; filling or applying repair materials; the composition of the repair materials is calculated as follows in parts by weight: carbonized cementitious material: 100 Parts, carbonization enhancer: 1-10 parts, fine aggregate: 5-70 parts, water reducing agent: 2-6 parts, water: 6-16 parts; use sealing device to seal the area to be repaired; to the closed area to be repaired Introduce carbon dioxide repair gas. The invention is based on the principle of carbonization hardening, the strength of the repair material develops quickly, the strength grade is high, and it can be put into service quickly after repair; the volume of the repair material will expand slightly during the carbonization process, and the volume stability is excellent in the later service process, and it is closely combined with the matrix , strong cohesion, not easy to fall off; the fluidity of the repair slurry can be designed and adjusted to meet various processes of smearing, spraying, and pouring, and has strong engineering applicability.
Owner:WUHAN UNIV OF TECH

Construction equipment for repair and reinforcement of tunnel lining structure

The invention relates to a construction plant for repairing and strengthening tunnel lining structures. The construction plant is characterized by comprising a running gear, any ring construction device (1 to 8) required in the invention, a lifting device with a lifting platform, a control device for controlling the construction plant to work and a driving device for driving a supporting arm to rotate. The lifting device is installed on the running gear; the ring construction device and the driving device are both installed on the lifting platform; and the control device is installed on the running gear. The construction plant has the beneficial effects that the construction flow is mastered through the plant, the automatic degree is high, a person does not need to enter a tunnel for construction, and the labor cost is saved; the mechanized construction quality is higher than the manual construction quality, coating of epoxy resin glue is even, a carbon fiber sheet is tightly and smoothly bonded, and the repairing and strengthening effect and the construction efficiency are guaranteed; and the construction plant is suitable for repairing and strengthening construction of the tunnel lining structures in different sizes, suitable for construction under various weather conditions and engineering environments and good in engineering adaptability.
Owner:HOHAI UNIV

A structural repair and reinforcement material for concrete chimneys and cooling towers and its application

The invention relates to the field of building materials, and discloses a structure repair and reinforcement material for concrete chimneys and cooling towers and an application thereof. The repair and reinforcement material of the invention includes base surface repair mortar and / or concrete grouting liquid. Among them, the base surface repair mortar can be permanently integrated with the concrete, and make the repaired and reinforced concrete surface have excellent anti-carbonation, anti-seepage, anti-acid rain, anti-freezing and thawing capabilities; It can make loose concrete or concrete cracks and base surface repair mortar fully bond together and permanently integrate, thereby reducing the risk of loosening and cracking of repaired concrete again.
Owner:北京固斯特国际化工有限公司

A Distribution Network Expansion Planning Method Based on Policy Adaptive Differential Evolution

The invention discloses a distribution network expansion planning method based on strategy adaption differential evolution. A capital time value is considered, calculation is carried out according to equal amount installment payment capital recovery, a model is established by taking least annual investment and operation maintenance cost as a target, a differential evolution algorithm based on strategy adaption on the basis of the model is proposed, an optimal solution obtained by the algorithm is decoded, a planning line is drawn on an electric power GIS (geographic information system) platform according to a line number obtained by decoding to carry out structure repair to an individual, and the individual is enabled to satisfy a radiative network structure. An adaption evolutionary strategy is continuously updated in an iteration process to prevent the algorithm from being trapped in local optimum, and a planning process of a distribution network line is enabled to exhibit better interactivity, more intuitive planning result and flexibility in planning scheme regulation by a GIS.
Owner:杭州中威智能科技有限公司 +1

A repairing structure and repairing construction method for foundation pit supporting and retaining piles

The invention discloses a repairing structure for a foundation pit supporting pile. A repairing frame is covered at a crack position of the foundation pit supporting pile. The repairing frame comprises a first iron wire, a second iron wire and a plurality of steel bars, the steel bars are vertically distributed at intervals, the first iron wire and the second iron wire are connected in a head-tail mode and fixed around the foundation pit supporting pile. A repairing mounting ring comprises a left mounting ring and a right mounting ring which are arranged in a semi-annular shape correspondingly, one end of the left mounting ring is hinged to one end of the right mounting ring, the other end of the right mounting ring is connected with a connecting boss, and a locking part for tightening the left mounting ring is arranged at the other end of the right mounting ring.A grouting space for covering the repairing frame is formed among the left mounting ring,the right mounting ring and the foundation pit supporting pile, and a grouting nozzle communicating with the grouting space is formed in the left mounting ring and / or the right mounting ring. A grouting pipe is connected to the grouting nozzle for introducing concrete slurry. According to the key points of the technical scheme,the repairing structurehas the characteristics of high convenience of repair.
Owner:广东广强基础工程有限公司
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