桥台台背回填施工处理及施工工艺(国外英文资料).docVIP

桥台台背回填施工处理及施工工艺(国外英文资料) Back filling and construction process of bridge table The bridge jump car is one of the quality of highway project construction quality, not only affects the comfort of the driving, but also brings the safety hazard to the driving. Therefore, it should follow reasonable construction technology and strict construction quality control to ensure the safety and safety of the bridge. Analysis of the cause of bridge jumping There are many factors that make the bridge jump, but there are several main points: (1) the bearing capacity of the bridge foundation and subgrade base is not consistent, under the same load, the foundation settlement differences (general bridge foundation settlement are smaller, base and subgrade settlement is larger), especially the soft base period, the difference is bigger. (2) the bridge concrete structure (rigid) and structure properties of subgrade pavement (semi-rigid and flexible) is different, so the two different structural junction, there will always be differences. (3) the construction quality is poor, the backpacking compaction of the platform fails to meet the requirements of the specification, causing the back of the table to settle down. The solution to bridge jumping The above three factors, the first and second factors can be settled through perfect design, and the third factor is man-made, need to improve the quality of on-site construction personnel consciousness, strengthen control construction link, optimize construction technology to be solved. Quality control of site construction process We will carry out the backfill construction under the precondition of strict execution. According to the comprehensive analysis, the owner of the bridge head should not be strictly due to the construction due to the lack of responsibility of the construction staff. Therefore, we should choose serious and responsible work, has the construction experience of the technician is responsible for the work, strictly control th