The common problems such as bridge pier falling and local foundation slope falling after tamping by hydraulic pulley can be solved.
For the foundation in the turning area of conventional compaction machinery, areas without roads and other areas where the existing large compaction or compaction machinery cannot approach, such as abutment back, culvert side, pier periphery, slope and other hydraulic compactors can be constructed, which is convenient and fast, and also helps to cut off piping, especially suitable for the reinforcement treatment and rapid rush repair of river dikes and dams.
For beginning users, how to construct the hydraulic tamping machine and what are the common construction schemes of the hydraulic tamping machine. In particular, we need to know. Combined with many years of production experience and construction experience, I will introduce some common construction schemes of the hydraulic tamping machine.
Excavator hydraulic tamping machine
First, experimental compaction is very important. Due to the great differences in geological conditions, construction conditions and quality requirements at the construction site, the specific construction method of high-speed hydraulic tamping machine should be analyzed and treated in detail, which can not be generalized.
The compaction test is usually conducted at the actual construction site, specifically: 1-stage 9-hammer, 12 hammer and 15 hammer point compaction; Point distribution and compaction with 6, 9 and 12 hammers of gear 2; 3 gears, 6 hammers, 9 hammers and 12 hammers for point distribution and compaction; Measure the compactness after tamping, and tamp according to the standard gear and the corresponding number of hammers.
If the above test methods fail to meet the construction requirements, the number of tamping can be appropriately increased. If the number of tamping still fails to meet the standard, the construction scheme shall be considered to be changed.
Impact compaction test
During construction, the construction gear shall be reasonably selected according to the site conditions, such as whether there are culverts and pipelines below, whether there are impact force restrictions on adjacent structures, etc.
Referring to the actual experimental data, when using the high-speed hydraulic compactor to reinforce the subgrade of the expressway with layered rolling up to the standard, the following construction scheme shall be used and shall be adjusted appropriately according to the data of the experimental section.
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