"As the contractor, Liao Jian Group is only responsible for the construction according to the drawings and requirements. Building materials are mainly provided by Cyber, and there are also corresponding inspection reports. The quality of building materials is definitely a problem for tenderers and local quality supervision stations. " Xin Jianjun of Wuhan Engineering Office of Liao Jian Group responded.
20 1 1 12.5, Cybertron said in the project description of Zirun Mingyuan (South District), "At present, problems such as external wall cracking and water leakage are common problems in residential buildings. There are many reasons for the above quality problems. Our company has certain responsibilities, and there are also places where management is not in place. Our company will take all possible measures to satisfy the owners. "
The results show that the main causes of external wall cracking are as follows: first, it is caused by thermal expansion and cold contraction during the curing process of aerated block. Second, architecture is a frame system, and the maintenance of walls is a filler wall. After residents move in, they will carry out renovation. In order to increase the number of indoor rooms, all the internal walls were demolished, but the internal and external walls were connected, which led to the loosening and cracking of the whole wall.
The relevant person in charge of Cybertron said, "The full set of construction drawings of this project have been strictly reviewed by Wuhan Construction Drawing Review Office, and the design meets the requirements of various specifications and mandatory standards. The files are stored in the Wuhan Urban Construction Archives and can be consulted. "
On February 8, 65438, Cybertron explained the reasons for the cracking and sinking of the scattered surface and the inner wall of the ground floor building again, saying: "Now the reasons for the cracking and sinking of the local scattered surface have been found out. Because underground pipelines are arranged at some positions below the scattered backfill, it can not be over-compacted during scattering, which leads to a certain degree of consolidation and settlement of the backfill, which leads to the cracking and sinking of the local scattered surface." Rushing for the construction period has become the main reason for the formation of "fragile buildings". Xin Jianjun, director of Wuhan Engineering Department of Liao Jian Group, said that the contract filing date of this project is 900 days. According to the bidding information issued by Wuhan Urban and Rural Construction Committee, Liao Jian Group won the bid with 20865 1.7 1.900 yuan, while the bidding period given by the tendering units China Hubei United Company and Cybertron Company was only 360 days.
According to the information released by official website of Wuhan Real Estate Group, Zirun Mingyuan Project was hastily launched at the end of September 2008 without obtaining the land certificate and the preliminary procedures of the construction project were not perfect, and the design document examination certificate was obtained by means of "administrative examination and approval first, then technical work", which "provided a basis for the company to handle the bidding and project inspection procedures and won valuable time for the start of construction".
In order to avoid the influence of migrant workers' Spring Festival holiday and rainy season on the construction period and the difficulty of pond foundation pouring, the project department adopts the form of segmented flow operation, grasping the unfinished pile foundation construction and temporary implementation on the one hand, and grasping the pile foundation excavation on the other hand to fully promote the project progress. "After the Spring Festival, all the buildings in the community started the main construction at the same time, and the venue was narrow, so it was a problem for commercial concrete vehicles to enter the market." Residents nearby recalled. According to the official website filing inquiry system of Wuhan Construction Engineering Quality Supervision Station, the completion acceptance certificate of building 37-49 in Zirun Mingyuan North District was issued on March 23rd, 201/year, and that of building 7 in South District1~1year was issued on March 23rd. On February 8, 65438, Cybertron said that the project started construction in early 2009, and was completed and accepted in June of 20 1 1 year, and the certificate of completion and acceptance of the construction project was obtained in April of 201/year.
According to the "Guarantee of Residential Quality in the South Zone of Zirun Mingyuan" provided by the owner of Building No.6 in the South Zone, the guarantee was issued by China Hubei United Company and Cybertron Company on February 20 10, and the guarantee stated: "Our company solemnly guarantees and promises the quality and maintenance of the house you purchased: the quality level of the house is qualified, and it can meet the use requirements stipulated in the house sales contract when it is delivered."
According to the introduction of the above-mentioned owner, the contract was signed as early as September 20 10,1October 3 1 1. Zirun Mingyuan Project has confirmed the quality of the house and organized the delivery of the house without obtaining the certificate of completion and acceptance of the house construction project.
"How to ensure the quality of the project, it is not enough to rely solely on the developer's consciousness." Industry experts said, "In the face of the profit-seeking mentality of construction units, once the supervision of government departments is not in place, quality problems are inevitable."