Overall, this inspection inspected 32 residential projects in 16 districts of the city, including 6 construction projects in the main structure stage and 26 construction projects in the decoration and electromechanical installation stage.
For the Caoqiao collective rental housing project in Fengtai District, the construction unit Caoqiao industry (Beijing Vanke) cooperates with the construction unit Tianjin ruinai construction.
A total of 17 copies of the handover form for special inspection on residential quality and safety were issued on site, and 91 serious problems were handed over to the district housing and Urban Rural Development Commission for investigation and treatment.
（4） Fengtai District and Daxing District have solidly promoted the implementation of the primary responsibility of the construction unit.
The inspection found 59 basement waterproof and backfill problems, accounting for 6% of the total problems.
Chaoyang District Housing and Urban Rural Development Commission earnestly carried out the “quality month” activity, organized on-site observation meetings on project quality, comprehensively displayed good experiences and good practices, and put forward the work goal of “whether a project is good or not, each project is good; one cannot be less for high-quality development” in the area of housing and urban rural development in the whole region.
2、 Overall, with the implementation of the primary responsibility for quality and safety of the construction unit, resident supervision of ready mixed concrete, household acceptance, project quality evaluation and project quality image traceability management and other management documents, the project quality awareness and management level of each participating unit have been significantly enhanced, and the quality of the inspected residential project is generally under control.
（2） The problems of basement waterproof and backfill construction still exist.
3、 The inspection found that there were many problems in four aspects: interior decoration and electromechanical installation works, basement waterproof and backfill works, supervision performance and construction drawing node design scheme.
The joint inspection team of Shijingshan District Housing and Urban Rural Development Commission found dozens of quality problems in differentiated supervision projects and implemented the seriousness of differentiated supervision; Huairou District Housing and Urban Rural Development Commission strictly controls the delivery of residential buildings for projects to be completed, and can only be delivered for use after all problems are rectified.
The good practices of each district are as follows: (1) Chaoyang District plays a model demonstration and leading role.
The inspection found that there were 309 quality problems in decoration and mechanical and electrical installation projects, accounting for 30% of the total problems.
In terms of basement waterproof, there are some problems, such as insufficient waterproof height of exterior wall coiled material, no closing measures, and no detailed waterproof blocking measures for the through wall pipeline of basement exterior wall.
A total of 1006 problems were found in the inspection, including 600 project entity quality problems, 158 main quality behavior problems and 248 supervision unit performance problems.
The housing and Urban Rural Development Commission of Shijingshan District and Huairou District studied and formulated the inspection scheme according to the actual situation of the district in advance with the joint inspection team, relied on the joint inspection mechanism, gave full play to the technical advantages of experts, and helped to improve the quality of housing in the district.
There are some problems in the decoration project, such as indoor ground cracking, insufficient anchor points between light partition board and main structure, non dense and transparent window foam sealing, non use of safety glass for sliding door, insufficient anchor depth of embedded bolts of stone curtain wall and so on; There are some problems in electromechanical installation, such as the comprehensive pipeline layout and laying of basement pipelines are not done, the supports and hangers of water supply and drainage pipelines are not set as required, the setting of fire water pipes and sprinkler heads do not meet the requirements, the fire pipes are not painted with fire retardant coating, the cross-section size of roof lightning protection lead is insufficient, and there is no water floor drain in toilet.
With the continuous rise of groundwater level in our city and the heavy rain this year, the exposed leakage problems of basement exterior wall and roof occur from time to time.
All problems require the district housing and Urban Rural Development Commission to urge the participating units to rectify within a time limit in accordance with the law and regulations.
（2） Changping District extends and innovates the supervision mode.
The Beijing Municipal Commission of housing and urban rural development has notified five projects with serious quality problems, and four projects have outstanding problems in the quality of waterproof works.
The notified problems have been required to be handled by the territorial supervision institutions in accordance with the law and regulations.
The construction unit and the construction unit take eliminating common quality problems as the main starting point to improve the residential quality.
（1） The problems of decoration and mechanical and electrical installation projects were highlighted.
The introduction is to continuously strengthen the quality improvement of housing projects in Beijing, promote the construction of the project quality responsibility system with the construction unit as the primary responsibility, strengthen the implementation of the main responsibility for the project quality of the construction unit, strengthen the due performance of the supervision enterprise, and cooperate with the District Housing and Urban Rural Development Commission according to the annual work plan, A special inspection was conducted on the engineering quality of residential projects under construction in Beijing.
Improve the waterproof design standard, pay attention to the model guide, and strictly implement the technical measures for roof waterproof construction; For Tuanhe resettlement housing project in Daxing District, the construction unit, Beijing Pioneer Huaye, closely cooperated with the supervision unit, Jianyan Kaibo, to jointly explore the node practice of prefabricated building structure design, and adhere to the acceptance of backfill quality by drilling.
The inspection found that there were serious problems in four aspects: basement waterproof, backfill engineering and indoor decoration.
The inspection found 59 basement waterproof and backfill problems, accounting for 6% of the total problems..
The spot check focused on the project entity quality, the quality behavior of the main participants and the performance of the supervision unit, and entrusted a third-party testing organization to test the concrete strength The air tightness of doors and windows was sampled.
Changping District Housing and Urban Rural Development Commission comprehensively analyzed the weak links of the whole chain supervision of the construction project, continuously extended and innovated the project quality supervision methods in terms of cost payment, owner inspection, model room control, key link supervision, house purchase contract review, and implemented quality improvement measures.
In addition, there are some problems in some projects, such as the lack of detailed node practice of external wall thermal insulation and waterproof in the drawings, a large amount of ponding on the roof, external wall leakage and lax acceptance of concealed works.
（3） Shijingshan District and Huairou District implemented differentiated supervision.
On January 10, the Beijing Municipal Commission of housing and urban rural development reported the special inspection.
Beijing Municipal Commission of housing and urban rural development stressed that in the next step, we should strengthen exposure and punishment, especially “zero tolerance” for waterproof construction problems, and investigate and deal with them together when found! The details are as follows: 1.
