建筑开槽（Building grooving）.doc

建筑开槽（Building grooving） The description is not clear enough, I thought to the bottom of my heart Requirements for operating conditions for construction: 1. before the excavation of the earthwork, the underground and ground obstructions in the construction area shall be removed and disposed of according to the requirements of the construction plan. 2. buildings or structures or the location of the site of the control line (pile), the standard size of pile and the slot of the gray line, must pass the test; and after finishing pre screening procedures. 3. during the night construction, there should be enough lighting facilities; in danger areas, obvious signs should be set up and reasonable excavation order shall be arranged to prevent excavation or excavation. 4. when excavation of pit and ditch with underground water level, measures should be taken to reduce groundwater level according to local engineering geological data. Generally down to the excavation surface of 0.5m, and then excavation. 5. the road, bridge and unloading facilities after the construction machinery enter the site shall be inspected in advance and should be reinforced or widened when necessary. 6., select earthmoving machinery, should be based on the construction area of the terrain and operating conditions, soil classification and thickness, the total amount of work and duration of comprehensive consideration, in order to play the efficiency of construction machinery to determine, and compile the construction plan. 7. the construction area running route layout should be determined according to the engineering work area size, mechanical properties, distance and topography etc.. 8., in the mechanical construction can not work parts and trim slope slope, cleaning tank bottom and so on, should be equipped with manual. 9. familiar with drawings and technical clarification. Technological process： Determine the order and slope of excavation: sub layered, average excavation, trimming and bottom cleaning