Construction of tunnel works without steel bar fear of collapse heart difficult

The problem of engineering quality should be paid great attention by the whole society.　　Report to our real name of the migrant workers Shi Youlong, the report is a commercial highway tunnel construction in the process of shoddy, shoddy, this is a matter of public safety issues.　　In recent years, engineering quality problems frequently, bring us the Lesson of Blood: 2008, Kunming Xiao Zhuang overpass collapsed, resulting in 2 dead, 4 injured; in 2009, Zhuzhou Viaduct collapsed in Hunan province, causing 9 dead, 16 injured; January 3, 2010, Kunming New airport approach collapse, resulting in 7 death 34 injury ... Does the frequent accident prove that the operating mechanism of the industry has a problem?　　Shi Youlong the industry "unspoken rules" really exist?　　Shi Youlong to the Chinese quality of the magazine real name of the report, caused by the relevant departments of high attention, will soon be "broken inspection."　　Regardless of the outcome, it is unavoidable that the quality of the project is to torture the conscience of the whole society.　　Real name Report "I am Shaanxi Province Business Highway DJN19 contract Chingqing Ditch tunnel engineering team of migrant workers, the real name of the tunnel construction in the process of shoddy, shoddy and other issues ..." Recently, this newspaper received the real name of the migrant Shi Youlong report. The commercial highway is the National Highway Network West (Ann) together (FAT) large channel Shaanxi Shangzhou to Shaanxi and Henan, is the northwest communication of East China and the Yangtze River basin developed provinces of an important line, but also Shaanxi province to Xi ' an as the center of the "Rice" zigzag road main skeleton of the important part,　　In Shaanxi province and even the National Highway network layout has a very important role. "Since the end of the project, my heart has been butterflies, feel very uneasy, afraid of our blind obedience will lead to catastrophe, to the country and the people caused irreparable damage."　　"Shi Youlong to Chinese quality Wan Li to say.　　According to the reporter understand, the commercial highway DJN19 contract Chingqing tunnel length 738 meters, by the 14 Bureau of China Railway Engineering Co., Ltd. (that is, China Railway 14 Bureau) is responsible for construction, Yunnan Engineering Supervision Consulting Co., Ltd. supervision. But Shi Youlong in the complaint that he belongs to the second team, the surface is from the 14 Bureau of China Railway Engineering Co., Ltd., in fact, the company contracted DJN19 contract Chingqing Tunnel project private construction team. "This subcontracting behavior has not been approved by the relevant departments, and the relevant departments have not been notified." And as far as I know, China Railway 14 Bureau Engineering Co., Ltd. has never signed a written subcontract agreement with the second team of my tunnel. "Shi Youlong revealed that the commercial Highway DJN19 contract section in the construction process there are a lot of problems: materials can not be supplied on time, the wages of workers can not be paid in time, the supervision staff did not do their due diligence supervision.　　This led to a serious delay in project progress, engineering quality can not meet the expected requirements, many areas have different degrees of shoddy phenomenon, more security risks exist in the completion of the tunnel. Shi Youlong said that only the second team in his tunnel k200+854-k21+223 (left hole), sk200+855.5-sk201+225 (right hole) project, there are Jerry, shoddy the following questions: 1. Arch and fill part: According to the tunnel design plan, Originally, the height of the stone concrete of the C10 is 1.7M, but in practice, the other parts except the contact are used to backfill the slag in the hole, and the surface covered stone concrete has only about 20cm thickness. The ∮22 rebar was originally used to make the 25cmx25cm steel net, but in the actual construction process, in addition to the other parts of the contact with a single layer of steel mesh, spacing up to 50cmx50cm.　　The worse is that in some places there is no steel bar, simply using the slag for backfilling, and with a small amount of stone concrete cover, that is completed. 2. Two steel bar section: In accordance with the original design, the two-lined steel bar should be a double-layer steel bar net, the spacing for 25cmx25cm, but in the actual construction process, in addition to part of the contact is in accordance with the original design plan for the construction, the other part of the use of a single layer of　　In some places, steel bars are not even used and are covered directly by other materials. Investigation report Shi Youlong said that for the quality of the project, they have repeatedly to the project Department of the leadership, supervision units and management to reflect the requirements of the 14 Bureau of the Five Engineering Co., Ltd. to increase the project investment, timely rectification of security risks to ensure the quality of the project, but the other side ignored.　　The project department heads and supervisors stationed on the site, instead, asked them to continue the construction in accordance with the changed design plan. After the project was completed, the project department leadership and the relevant supervision units bribed the relevant testing personnel, through the quality of the contact to take samples of the way to cover up a large number of quality problems, to ensure that the clear Thorn ditch tunnel project through the acceptance of the work smoothly.　　"Shi Youlong said.　　Today, the highway described by Shi Youlong has been opened to traffic and has not yet caused injury to people.　　October 29, 2008, Shi Youlong and other people on the quality of the tunnel to the Shaanxi Provincial traffic department Capital Construction Project Quality Supervision Station (hereinafter referred to as the Shaanxi provincial Infrastructure Supervision station) has been reported. Shaanxi Province Construction Quality Supervision station immediately commissioned the Shaanxi Provincial traffic Building Group business Construction Management Office to investigate.　　The same year, November 26, the management Office formed a survey report. The reporter got the "Business Building Management Office" on the Dan Boundary (note: Commercial Highway section) expressway DJN19 Contract Chingqing The quality problems in the construction of barbed Gou tunnel. The report shows: by coring method, the concrete of the inverted arch of the tunnel is tested, and its compactness, thickness and compressive strength meet the design requirements. The problem of the spacing between the arch steel bars has been opened to traffic, the detection has a certain degree of difficulty, however, from the supervision of the inspection data, there is no report of the problem; the second lining steel bar, the test results meet the requirements, the problem of core coring, in the construction unit self-test and supervision sampling, commissioned a third party detection, the conclusion is compactness,　　Thick and compressive strength meet the design requirements. Receipt of the report, Shi Youlong is not agree with the findings. "We are the direct builders, we know the quality of the project at our fingertips." "Shi Youlong thinks," Shaanxi Province construction Quality Supervision station so-called ' detection ', just a management, quality Supervision Department, such as director of the farce, detection results are not true.　　"Waiting for" the "Shi Youlong" after the request of Shaanxi Provincial Quality Supervision Station organization testing, "site identification and break inspection." December 24, 2009, Shaanxi Provincial Infrastructure Supervision Station webmaster Chowaiyu to Shi Youlong and other people's complaints report instructions: "Please cheng Webmaster (Cheng) urged the construction group to study the quality of the inspection methods, and timely contact with the informer, to explain the progress of the investigation and to listen to informants opinion." "In the quality of Chinese reporters interviewed, Shaanxi provincial infrastructure Supervision Station deputy Webmaster Cheng told reporters that the quality supervision station to the report attaches great importance to the quality Supervision station will organize testing agencies to carry out the inspection," will be invited to identify the whistleblower site. Cheng said, "Welcome news media Supervision, it is best to go to the scene to witness the inspection process." "If there is a quality problem detected, we will solve the matter through legal means, we must stop these construction abnormal situation, to ensure the quality of the project."　　Cheng stressed.　　The Shaanxi provincial capital Construction supervision station prepared to break the decision, Shi Youlong told reporters that the quality Supervision Station direct intervention will be to uncover the fact that the truth plays a key role, they are at any time waiting for the notice of Quality Supervision station, with quality inspection personnel at the scene of the inspection.　　Chinese Journal of Quality Miles will pay close attention to the results of the inspection.　　RELATED LINKS construction safety accidents and engineering quality problems should be paid attention to recently, Yunnan, Jiangsu, Anhui, Shanghai and other areas successively occurred several construction safety accidents and engineering quality problems, some of the country and people's lives and property caused a great loss, and some caused a very bad impact. January 3, 2010, Yunnan Kunming New Airport supporting approach project construction site, construction personnel in the pouring of concrete, formwork support system collapsed, resulting in construction workers killed 7 people, 8 people seriously.　　This project construction unit is Yunnan New Airport construction Group, the construction unit is Yunnan constructs the construction Company Limited, the supervision unit is the Yunnan City construction Supervision Limited company, the Labor Service Subcontract Unit is Jilin Songyuan Ningjiang District Sincere Labor Service Limited company. January 9, 2010, Jiangsu Yangzhou Hanjiang District Choi Hong Yuan two corroding building project construction site, the construction staff in the unloading platform on the transfer of steel pipe, unloading platform collapsed, resulting in construction workers 3 people died.　　The construction unit is Yangzhou Golden Sunshine Real Estate Development Co., Ltd., construction unit is Nantong ASUS Building Development Co., Ltd., supervision unit is Jiangsu Runyang Project Management Co. January 12, 2010, Anhui Wuhu Huaqiang Cultural Science and Technology Industrial Park Distribution Center project construction site, construction personnel in the pouring of concrete, the collapse occurred, resulting in the on-site operation of 8 people died, 3 people were injured. The construction unit is Wuhu Huaqiang Cultural Technology Industry Co., Ltd., the construction unit is Wuhu Hengda buildingInstallation of limited liability company, Supervision Unit is Wuhu Wu Jian Construction Supervision Co., Ltd. December 8, 2009, Jiangsu Nanjing Hanzhong Gate Bridge project appeared quality problems. The main problem is the south side of the bridge 39 railings and the north side of the bridge 5 railings pillar root cracks, the north side of the road bridge 11 railing pillar root cracking, construction units without authorization to use the construction of plastic crack treatment.　　The project Construction Unit is Nanjing construction Project Investment Management Co., Ltd., the design Unit is Nanjing Municipal Design Research Institute Co., Ltd., the construction unit is China Railway 15 Bureau Group Co., Ltd., the supervision unit is Nanjing first construction firm limited liability company. December 28, 2009, Shanghai City, Suzhou Creek, Henan Road and Bridge reconstruction project appeared quality problems. The main problem is that the external GRC decorative plate has obvious deformation cracks, decorative plate outside the back and structural gaps using woven bags and other debris to fill as an empty cavity film. The project Construction unit is Shanghai Huangpu River Bridge Construction Co., Ltd., the overall design unit is Shanghai Urban Construction Design Institute, supervision Unit is Shanghai Xinguang Engineering Consulting Co., Ltd., Bridge Construction Unit is Shanghai Foundation Engineering Co., Ltd., decoration Design and construction Unit is Shanghai Building Decoration Engineering Co., Ltd.