Description:The HC36 Rapid Impact Compaction is a dual-actuator breaker, computer controlled, and 5t mounting ma...
Update time:2022-06-27 08:36:17
Number of views:369
When the subgrade engineering backfilling is mainly used HC36 Rapid Impact Compaction, a little HC42 is used. The HC36 Rapid Impact Compaction is a dual-actuator breaker, computer controlled, and 5t mounting machine complete set of equipment after application. The HC36 Rapid Impact Compaction has a rated value potential of 36kJ, a cone-shaped quality of 3t (specific 3.25t), a larger improvement height of 1.2m, a rammed plate aperture of 1m (the total area of the grounding device is 0.785m2), and the height is equipped with three automotive gears of 0.2m, 0.6m and 1.2m. Ramming strength (automotive gear), chopping frequency can be set anytime and anywhere as necessary, or manual ramming can be applied.
In order to more effectively manipulate the actual effect of the strong rammed foundation, the first compaction experiment was carried out, and the test site was selected at the core pile of the winning unit, K87+910 Sulingol Bridge No. 7 abutment, the cover plate culvert was backfilled with sand and gravel soil, and there was a part of clay in the seam, the moisture content was too small, and the sand content was too large. The experimental point selected HC36 Rapid Impact Compaction, and re-compacted the no. 7 cover plate culvert back filling point according to a certain interval relative density to improve the compactness of the backfill soil and minimize the problem of bridge head jumping in the highway operation link.
First of all, the back substrate of the overpass platform will be flattened and rolled to solve the problem, and the working environment will be leveled. The lime line is applied to mark the tampon category, and the original elevation of each point is later measured according to the serial number. The Rapid Impact Compaction is placed according to the marked parts, so that the rammer hammer points to the positioning point. According to its compaction energy, the tamping machine is divided into strong, medium and weak three gears, and the impact rammer modulates the strong gear to carry out ramming each ramming point for 6 to 9 hits, and has 3 hits into a group, and the relative precipitation error of the final group and the previous group is less than 10mm. According to the field test conclusions, it can be seen that the selection of strong gear 6 to 9 hit work can have ribbed quality effect on the back of the bridge pier, and can greatly improve the work efficiency.
Because the depth of the interference of the whole process of ramming is relatively large, according to the strengthening of the Rapid Impact Compaction, the overall foundation settlement of the back of the drainage engineering table is 32mm, which clears the problems such as insufficient rolling effect in the post-construction foundation settlement and operation process.
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