Rapid Impact Compaction equipment, principle and advantages
(1) Ramming hammer, ramming plate, ramming iron frame, hydraulic push weaponry and equipment and its household appliance system software group constitute Rapid Impact Compaction.
(2) It contains two types of tamping methods: free fall motion tamping and forced accelerated tamping. Free fall movement tamping refers to the ramming hammer with hydraulic equipment raised to a certain relative height and released, and then under the effect of the force and its hydraulic pressure, the ramming hammer accelerates the landing and hits the ramming board with shock absorbing rubber mat on the working surface, and according to the ramming plate, the ramming force of the ramming hammer is transmitted to the working surface, and finally the compaction effect of the Rapid Impact Compaction is carried out; Forced acceleration of compaction is to release the cone shape and increase a rate in the opposite direction of it, so that it accelerates the landing, when the hammer pad suffers from working pressure, hitting the parts of the hammer body and rammed plate, prompting the rammed plate to compact the road surface. In fact, the Rapid Impact Compaction is the use of the force of the equipment and its variable force to integrate with each other, and then the compaction machinery and equipment that shrinks the sand soil can also be called the driving force compaction technology.
(3) Advantages of Rapid Impact Compaction: Compared with the traditional tunnel engineering construction and processing technology (such as heavy hammer type, strong ramming foundation tamping, etc.), the compaction work achieved by the Rapid Impact Compaction can not only reasonably ensure the actual effect of compaction, but also effectively prevent cutting damage caused by different filling layers, but also have the advantages of longer ramming effect and small maximum value. From the actual effect of general vibration roller compaction, the Rapid Impact Compaction is symmetrical around the amplitude and very strong, and it is not easy to cause the surface hard block condition in the underlying solution, which promotes the compaction of the subgrade engineering to be more symmetrical and reach the depth.
Perform the actual effect
The technical application of Rapid Impact Compaction in the construction of tunnel engineering plays a greater role in maintaining the reliability of highway ground and subgrade engineering, including the following aspects:
(1) Completed the overall compaction of the thick layer, as far as possible to prevent or reduce the middle of the layer may cause the solid layer to move, separate out and other conditions, through the compact thick layer fill subgrade, its relative density mean is not less than 96%.
(2) For these current large and medium-sized compaction or compaction machinery and equipment is unlikely to be close to the geographical basics, such as cover plate culvert back, culvert side, slope protection, near the bridge pile, no road area and compaction machinery and equipment folding area, these can carry out the compaction work, better solve the road common main equipment part after the basic sinking caused by the initial destruction of the ground, bridge pile tilt, slope slip and its cover culvert jump and other ground diseases and insect pests.
