Minutes of the first on-site meeting

Moderator: XXX XXX

Participants: technicians from the project department and technicians from all work areas.

Questions raised at the meeting:

First, the quality problems in this month's inspection:

(1) The field power consumption is not standardized;

(2) The construction access road is uneven;

(3) The label of protective engineering mortar is not enough;

(4) The flaky used in the side ditch does not meet the requirements;

(5) The inspection is not timely, which violates the supervision procedure;

(6) The excavation of the foundation pit of Wanzhai Middle Bridge is not gentle;

(7) The particle size of some subgrade fillers is too large;

(8) The construction progress is slow;

(9) The steel bars of Dayong Bridge are seriously corroded;

(10) The construction and maintenance time of the inverted arch at the entrance of Dayong Tunnel is not enough.

(1 1) concrete sometimes has insufficient mixing time.

(12) Maintenance measures for large piers are insufficient.

(13) The progress of subgrade slope protection in excavation section is slow.

(14) The welding quality of steel bars in the middle bridge in the interchange area is poor.

Please ask the person in charge of each work area to urge the construction team to make rectification according to the problems existing in the inspection, and re-accept after rectification.

Second, the proposed rectification measures

(1) The field power consumption is not standardized.

(1) Requires all construction teams to install, inspect, repair or dismantle temporary electricity projects, which must be completed by electricians.

(2) The construction power system must adopt a three-level distribution system, that is, a distribution box is set below the main distribution box or distribution cabinet, and a switch box is set below the distribution box. Finally, the wiring led from the switch box is connected to the electrical equipment.

(2) The construction access road is uneven

The project department immediately arranged machinery for finishing, and now it is possible to drive and sprinkle water regularly.

(3) the protective engineering mortar label is not enough

Intensify the test work, set up mix proportion signs on site, and carry out the construction in strict accordance with the mix proportion to ensure the engineering quality.

(4) The flaky used in the side ditch does not meet the requirements.

Strictly control raw materials, prepare flaky in strict accordance with the specification requirements, and rework materials that do not meet the specification requirements until they pass the inspection.

(5) The inspection is not timely, which violates the supervision procedure.

Strengthen the control of the construction process, and the quality inspector shall conduct effective self-inspection of the construction process. After passing the self-inspection, report to the supervisor for approval.

(6) The excavation of the foundation pit of Wanzhai Middle Bridge is not gentle.

After the bridge foundation is excavated to the width required by the design, the slope shall be properly placed, and the reinforcement shall be bound after the foundation bearing capacity of the foundation pit is qualified, and the foundation surface shall be leveled before binding.

(7) The particle size of some subgrade fillers is too large.

Construction shall be carried out in strict accordance with the specifications of the Ministry of Communications, and the oversize fillers shall be crushed, and those that cannot be broken shall be removed from the site.

(8) The construction progress is slow

According to the requirements of the contract time limit for a project, the total construction schedule is put forward, and the total plan is decomposed into annual, quarterly, monthly, ten-day and weekly plans. The project department holds regular production meetings to report the completion of the work, solve the problems encountered in production and make the next work plan. The planning department summarizes the plans of each division and subdivisional work, and checks the completion of the plans.

(9) The steel bars of Dayong Bridge are seriously corroded;

Arrange workers to remove rust from steel bars, strengthen the control of steel bar storage, and support and cover steel bars when they are stored.

(10) The construction and maintenance time of the inverted arch at the entrance of Dayong Tunnel is not enough.

Arrange the tunnel team to strengthen maintenance, sprinkle water regularly to cover, and ensure the maintenance days.

(1 1) concrete sometimes has insufficient mixing time.

The mixing station shall be designated by special personnel, and the mixing time shall be strictly controlled to ensure the quality of concrete mixing.

(12) Maintenance measures for large piers are insufficient.

After formwork removal, pay attention to wrap plastic film in time for vacuum curing, and arrange sprinkler maintenance when necessary.

(13) The progress of subgrade slope protection in excavation section is slow.

Increase investment, pay close attention to the protection of excavated slopes, especially high slopes, to prevent accidents such as landslides. For the unfinished high slope, it is necessary to protect it while constructing.

(14) The welding quality of steel bars in the middle bridge in the interchange area is poor.

Arrange laboratory and on-site quality inspectors to strengthen guidance and supervision, increase sampling frequency, strictly control the welding length of steel bar, bending angle of welding head and weld fullness, and remove welding slag in time.