The transport of lime, fly ash and gravel mixes is carried by dump trucks. Due to the limited conditions of facilities in the stadium, the total weight of the transport vehicles should be less than 20t, and the vehicles must have sealed-coverage equipment to prevent dust, prevent spillage, and prevent leakage. When using manual paving operations, the paved area should be calculated every day. Do not stack large piles, affecting the paving, and the bulldozers can be used to disperse the materials after the materials are supplied. The measuring staff presses the 5mx5m grid to measure points on the spot. Filling and uneven places. If an asphalt concrete paver is used, baseline measurements must be made on both sides of the paving operation, and the paver should be paved under the control of the baseline. In the sequence of paving for sports track and field venues, the main runway shall be paved first to increase the site operation height, and the protection of the inner ring ditch shall be favorable, and then the two semicircular areas of the field match shall be paved. When various vehicles pass through the gutters, protective measures should be taken to prevent them from shifting and damaging. In the paving operation, the conditions of the site shall be used to control the imaginary thickness of the lime, fly ash and gravel mixture in order to satisfy the design requirements in real time. It is generally the compacted thickness (designed structure thickness) multiplied by the compaction factor, which is calculated as follows: H=hK Where the H-mixing paving thickness (cm); h—Design structure thickness (compacted thickness) (cm); K—compaction coefficient r/r1 (manual paving 1.4~1.45, asphalt concrete paving paving 1.15~1.4); r - dry mass density after compaction (t/m3), r = 2.13 to 2.2 t/m; r1—Under certain paving, the dry bulk density (t/m3) of the mixture, the artificial paving r1=1.52 to 1.57 t/m, and the mechanical paving r1=1.57 to 1.8 t/m3. After the paving operation is completed, the artificially paved section shall be inspected. Where the sand and gravel material is concentrated, digging and lifting shall be adopted so that the gravel will be evenly distributed. For places where fines are concentrated, grit-filling methods can be used. At the same time, all inspections are performed. Grids are used to measure the height of the grids and verify that there are no problems. The next roller compaction operation can be started. When a structural design exceeds a thickness of 20 cm, a layered operation shall be adopted. When the first layer is operated, it shall be carried out according to the standard. After passing the qualification, the mixture shall be blended from the upper layer to be leveled and trimmed. If a thick paving operation is not only difficult to grasp, it also brings difficulties to the next roller compaction work, and it is difficult to achieve compaction density and achieve qualified products.
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