Sometimes it is quite common for plant strong rammers to find that the track has fallen off. This problem can occur briefly when the plant rammer is used for a long period of time or when the plant rammer is aging. This is the time to check the guide wheel of the plant ramming machine to see if it is badly worn, if it is badly worn, the guide wheel should be replaced.
What if the track becomes loose. New tracks are tight when they are first installed and can become loose over time. In the daily inspection of plant rammers, you need to always pay attention to the tightness of the tracks, because when the tracks are loose, they simply fall off. The tracks will be replaced after a long time of use, and only the pin bushings need to be replaced after a long time.
Interlocking Plates Interlocking plates are a layer of maintenance for the tracks. If it wears out fiercely, it loses its maintenance function and needs to be replaced straight away. It is very simple to treat the foundation with a strong tamp in the plant, replace the track and install it. Even if such problems occur, the site staff can solve them themselves.
Differences in plant ramming energy levels are reflected in deep reinforcement, i.e. deformation within the scheme of useful reinforcement depths, rather than differences in shallow bearing capacity. In addition, the shallow plate load test can only reflect the bearing capacity of two to three times the width of the plate and the depth of the plate plan, which does not reflect the effect of deep plant strong tamping reinforcement.
For example, to carry out deep plate load test, the upper layer of soil is equivalent to the overloading of the two ends of the bearing plate, and the soil under the bearing plate is difficult to produce overall shear damage, so it is not possible to get the accurate eigenvalue of the bearing capacity of the deep foundation. Therefore, the planning of plant ramming project should be based on deformation control, not only the foundation bearing capacity to be achieved after treatment.
Effective reinforcement depth refers to the depth at which the required depth of engineering planning is reached after reinforcement by plant ramming method is carried out on foundations that do not fully meet the engineering requirements from the beginning of the ramming surface (the leveling elevation of the ground before ramming) and the policy of strength and deformation of the soil body is tested in a certain way.
In the plant strong tamping project planning, the requirement of multiple tamping. Generally each tamping point and tamping energy is different, each tamping energy is higher, called the main tamping. According to the standard of plant strong tamping energy level and effective reinforcement depth of the linkage analysis, plant strong tamping energy level is higher, the higher the impact of the rammer on the ground, the greater the loosening of the impact stress in the soil planning, the greater the depth of effective reinforcement.
In the effective reinforcement depth planning, soil compactness increases, strength increases, compression decreases, these are important parameters reflecting the effect of foundation treatment, the value of tamping energy, tamping point arrangement, reinforcement uniformity and other parameters play a decisive role. Effective reinforcement depth is not only related to plant ramming energy level, soil quality, but also with the construction process, hammer bottom area, hammer shape and many other factors. Therefore, in the planning of plant ramming project, the useful reinforcement depth of different plant ramming energy level should be judged according to experience.