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How about worksite requirements for passing tunnels?

To ensure HZQD 900t beam launcher to pass tunnel smoothly, the worksite shall meet requirements as below:

1. The worksite must be flat and compacted, to meet the demand for lifting and assembling the machinery, bearing capacity of foundation soil shall be not less than 1kg/cm2;
2. The worksite must be spacious and widen, remove barriers all around (such as steel rebar and other objects which are not related to pass tunnel);
3. Before start construction, the worksite must ensure power and water supply and make wastewater discharge measures (min power of distribution box 10KW could give power to 2 air compressors and 4 illuminating lamps at the same time).