The rapid impact compactor can be installed on the forklift or excavator at the same time, and it is flexible and maneuverable, and there is no need to use a small and medium-sized compactor independently to deal with the corners. Small-scale compaction equipment and human capital investment reduce the repeated use rate of compaction equipment and greatly reduce construction costs; rapid impact compaction machine has a mild effect, strong and well-proportioned penetration ability, and it is not easy to produce surface hard lumps when the bottom layer is solved. A more balanced relative density is obtained in the deep area; the rapid impact compactor can carry out the compaction work, reducing the cost of small and medium-sized equipment and the continuous backfilling of the compaction equipment.

Compared with traditional vibratory rollers and small and medium-sized compaction machines, rapid impact compaction equipment have strong and well-proportioned working ability, and are not easy to produce surface hard lumps in the basic solution, and can be compacted in a wide range of heights. Spend. The rapid impact compaction machine is in place according to the precise measurement of the construction stakeout position, so that the rammer points to the positioning point. The rapid impact compaction machine is divided into three gears: strong, medium and weak according to its tamping performance. Gradually use the weak gear once. After leveling again, adjust the rapid impact compaction equipment to the strong gear. Each tamping hits 3 hammers to accurately measure the downward movement of the tamping point. measure and record. The rapid impact compaction machine takes every 3 hammers of the strong gear as a group, accumulates and records the settlement amount of each 3 hammers, conducts the 6th, 9th, and 12th hammer rapid impact compaction machines, and accumulates and records the settlement amount of each 3 hammers.

Construction method of rapid impact compactor

(1) Construction preparation. ①For the compacted roads, prepare the new project in advance to carry out the leveling of the site before the hydraulic press compaction; ②Carry out technical disclosure and safety technical disclosure for the employees to understand the physical performance; ③Configure experimental instruments and professional technicians. The reality is: a set of geotechnical testing instruments, no less than 2 professional quality personnel, who have been trained and familiar with the inspection and processing technology of roadbed engineering; ④ The rapid impact compactor is in normal trial operation, and inspection, overhaul and maintenance are carried out on time. maintainance.

(2) Edge solution. When the edge of the building is backfilled and compacted, the rapid impact compactor firstly backfills and compacts the surrounding area of the building in layers within 1m. The thickness of each layer of loose fill is preferably 0.5-0.8m. The compaction work can only be carried out at 2.0m.

(3) A layer of backfilling raw materials. According to the design of the construction drawing, backfill a layer of backfill raw materials, the backfill depth is 1~4m, and the surface is flat.

(4) Consolidate. The rapid impact compaction machine adopts the form of red plum blossom tamping to carry out the tamping solution. The hydraulic cylinder is used to raise the rammer to a certain height and it has been released. The tamper is accelerated under the same action of gravity and the hydraulic accumulator. After landing, press the negative pressure on the road surface with the rammer foot with shock absorption pad, and then ram the road surface according to the rammer foot. Because the function of the rammer to the road surface is performed according to the negative pressure on the rammer foot with shock-absorbing rubber pad on the road surface, and under the continuous action of the hydraulic airbag shock-absorbing equipment, compared with the traditional dynamic ramming foundation, its mutual interaction The maximum value of the force is small, the effect time is long, the effect is mild, and it is not easy to cut the filling layer.

When the solution is to be tamped by the base material, the relative tamping amount error of the final three hammers should not exceed 10mm rather than the first three hammers. The loading and transferring machine will carry out the next point, and the fan-type working method should be used. point, and then complete the construction of the next row of three points.

(5) Check the degree of compaction. ①The amount of settlement. The inspection of the specified settlement includes the design elevation before the ramming of the hydraulic press and after 3, 6, 9, and 12 hammers per tamper; ② Compaction degree. The substrate is compacted and solved. When the relative compaction error of the final three hammers should not exceed 10mm rather than the first three hammers, the compaction degree test can be carried out. Engineering construction, otherwise it should be carried out to solve the problem, until the design regulations are met.