Construction method for test section of earthwork backfill engineering
A construction method and technology of the test section, which are applied in the direction of foundation structure engineering, foundation structure test, excavation, etc., can solve the problems of inaccurate test results, delay in normal construction, etc., achieve high reference, prevent leakage pressure or non-overlapping , the effect of reducing the possibility of problems
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[0022] This embodiment provides a construction method for the test section of earthwork backfill engineering, comprising the following steps:
[0023] (1) Select a typical roadbed with a length of not less than 100 meters as the corresponding test section, and calculate the main parameters of the roadbed filling;
[0024] (2) Measure and set out, level the base, pave on site according to the test paving thickness, and control the paving thickness;
[0025] (3) After rough leveling with a bulldozer, adjust the thickness of the paving on site, and use a grader for fine leveling;
[0026] (4) Roll with a heavy-duty vibratory roller, first light and then heavy, first slow and then fast, first on both sides and then in the center, two adjacent compactions require the wheel tracks to overlap each other by 40-50cm, and the entire soil layer is compacted once and then repeated rolling;
[0027] (5) Use the sand filling method to measure the degree of subgrade compaction after the si...
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