What is the impact rolling effect of impact rollers? Why do you have to use an impact mill?

In the practical application of the impact roller, the main operation mode is to further enhance the subgrade filled by the vibrating roller according to the specification. By enhancing the supplementary pressure, the subgrade obtains a settlement of 5 20 cm again, and the degree of compaction is increased by 2 5%, and it is possible to eliminate the post-construction settlement and differential settlement in advance to the subgrade construction.

The construction defects such as overall subsidence or partial subsidence, longitudinal cracking of subgrade, subgrade sliding or slope collapse are mostly affected by factors such as geological conditions, filler properties and compaction treatment.

The impact roller enhances the pressure in the subgrade construction before the impact rolling to get covered, 100% detection, find defects, eliminate the defect in advance, the industry calls the detection of enhanced pressure, impact rolling has a unique advantage for the high fill road section, reflected in the high fill subgrade settlement after the settlement and differential settlement caused by the subgrade instability problem to be solved.

First of all, we must know the difference between road engineering construction and foundation engineering construction.

Road engineering construction refers to the driving area that is paved on the roadbed and can directly bear the car running over. Usually the thickness is between 16 and 25 cm with each other. The foundation is the foundation of the road, which refers to the part under the road. The thickness varies according to the regulations.

Secondly, know the difference between drum roller engineering construction and impact roller engineering construction.

Drum rollers and small rollers usually use static pressure and small vibration under the wheels to achieve soil compaction, usually the effective compactness is 20cm and 50cm between each other, and the layered construction method should be adopted according to the regulations.

The construction of impact roller engineering is to use the impact wheel to turn over to generate power to generate impulse on the foundation. The effectiveness of the compactness is usually between 100cm and 150cm.

As a result, the compaction thickness of impact rollers is much greater than that of drum rollers and small rollers. In many high-fill subgrade projects, the compactness of the general vibrating roller is far from meeting the engineering construction regulations, and the engineering construction of the strong compaction foundation and the impact roller can only be achieved to achieve tamping and reinforcement. The strong compaction construction is not only the most expensive, but also to other projects that have been under construction to terminate, and no personnel and vehicles can enter the construction site.

Impact rollers can work with other vehicles and work with each other.

The most important thing for the impact roller is to have the ability to test, the impact roller uses low frequency, large amplitude, and high-efficiency energy to impact the soil layer to produce a continuous and stable lifting layer with a thickness of 2m under the foundation, which is extremely important for improving the service life of roads, railways and airstrips. The surface layer is visually tested for the tamping quality of the foundation by the amount of foundation settlement obtained, and it is strengthened in this kind of inspection, which is called "inspection enhancement and pressure supplementation" in the field of road construction engineering, and this kind of large-scale 100 inspection is not related to other arbitrary inspection methods. Therefore, it is an irreplaceable necessity for impact rollers compared with small rollers, and it is also a key factor for many construction units to choose impact rollers.

Shandong Tianlu impact roller is a unique compaction equipment, with high pressure, deep impact depth, high construction efficiency characteristics, can greatly meet the high-grade highway, high-speed railway, reservoir dam, airport, port and other large-scale engineering foundation compaction needs and old road upgrading pavement crushing compaction, can greatly improve its bearing capacity, stability and compactness, reduce the damage to the highway due to vehicle overload, prolong the life of the highway. The compaction of the foundation of collapsible loess and the reinforcement compaction and detection compaction of the high-grade highway forming subgrade are more effective, which minimizes the natural subsidence time of the subgrade, accelerates the progress of the project and shortens the construction period, which is called "insurance for highway construction" by the owner.

Comparison of compaction effects.

1. The compaction strength is 10 times that of the static roller of the same tonnage, and 3 or 4 times that of the vibrating roller of the same tonnage.

2. The compaction efficiency is 3 4 times that of the same tonnage vibrating roller.

3. The depth of influence is 3 4 times that of the same tonnage vibrating roller.

The efficiency of YCT30 crushing cement pavement is 50 times that of impact breaker.

What is Impact Rolling?

Impact rolling is a new type of engineering construction technology method, that is, the impact roller of impact rolling equipment has the triple construction effect of "impact", "rolling" and "rubbing" to carry out high-intensity compaction operation on the foundation. The main function is to eliminate the post-construction settlement in advance and improve the compactness of the rolled foundation.

How to carry out impact rolling on impact rollers?

The impact roller itself does not have power, it is a towed roller, and it needs to be driven by a large traction machinery to continuously roll to achieve impact rolling construction.

Impact roller, also known as impact compactor and impact roller, is a new type of towed roller belonging to the roller. The impact roller is pulled by the loader, drives an impact wheel, and uses the weight of the impact wheel itself and the impact force when advancing to crush and compact the cement pavement and roadbed.

How to improve the impact rolling effect of impact rollers? In order to improve the impact roller impact roller collision effect, the following measures can be taken:

1. Choose a large plum blossom roller to increase the corner difference.

2. Increase the impact frequency and increase the source of impact energy.

3. Reasonably adjust the pressure and speed of the rolling wheel to improve the rolling efficiency.

In short, the selection of suitable impact roller models and reasonable construction methods can improve the construction effect.

What is impact roller impact rolling over-compaction closed hand?

"Over-compaction" refers to the situation that the impact roller continues to impact and roll when the impact rolling foundation has reached a high degree of compaction, or when the local position is repeated too many times.

We know that the impact roller has the effect of impact crushing, and is often used to crush the old cement pavement.

The properties of a wide range of foundations cannot be uniform, and it is inevitable that the skin will be stared, and due to combustion and this, the overlapping area of the impact roller impact rolling construction turning area should be adjusted and avoided.

Impact roller, also known as impact roller, impact rammer, is a construction machinery that drives two irregular impact wheels to crush and compact through the traction of the traction device. Since the impact roller entered the Chinese market in the 90s of the last century, it has played an irreplaceable role in many engineering fields such as roads, airports, dams and reclamation, and its main production areas are distributed in Henan, Shaanxi and other regions, among which the manufacturers in Zhengzhou, Henan Province are the most intensive.

What is an impact roller? The official definition of impact rollers in the national standard for impact rollers is: "There are one or more cylindrical surfaces with a number of curves on the surface of the busbar, metal pressure wheels that can generate impact force when rotated, and self-propelled or towed machinery used to compact gravel, concrete, soil or gravel materials."

The official definition of terms for impact rollers describes "one or more cylindrical surfaces with a number of curves on the surface of the busbar......The implication is that the roller of the impact roller is composed of one or two regular polyhedra with 3 5 sides.

Therefore, impact rollers are divided into single impact rollers and tandem impact rollers according to their structural types, and they are further divided into trilateral impact rollers, quadrilateral impact rollers and pentagonal impact rollers according to their external specifications.

Among them, the quadrilateral impact roller has only one roller, which belongs to the single-drum impact roller, while the trilateral impact roller and the pentagonal impact roller have two rollers, which belongs to the tandem impact roller.

"...... as described in the official definition of termsA metal pressure wheel that generates impact when it rotates,......It is explained to us: the impact roller can produce impact force, "impact" is "tamping", the corner difference brought by the non-circular roller of the impact roller, so that it can produce the "tamping" characteristics of "tamping" in the process of tumbling construction, therefore, some people also call the impact roller impact roller, impact rammer, tamping machine, etc.

"...... as described in the official definition of terms for impact rollersFor compacting gravel, concrete, soil or gravel materials, ......"It shows us the range of applications for impact rollers, which can be used not only to compact gravel, soil or gravel foundations, but also to crush old concrete pavement.

And the "...... described in the official definition of termsSelf-propelled or towed machinery. He also explained the product types of impact rollers, which are divided into self-propelled impact rollers and towed impact rollers according to the mode of operation.

The operation that relies on its own power unit is called a self-propelled impact roller, and the one that relies on other power machinery and equipment such as an impact roller, tractor, loader and other power machinery and equipment to pull the operation is called a towed impact roller. Domestic impact rollers mostly use towed impact rollers.

The reason is very simple, the self-propelled impact roller is a two-wheel drive design, so it has higher requirements for power output, while the impact roller tractor is a four-wheel drive design, which can relatively reduce the high requirements for power output, and then reduce the technical requirements and manufacturing costs.

At the same time, tractor-type impact rollers can also borrow large loaders, tractors, bulldozers and even truck heads as traction equipment, which is both economical and applicable.

What is an impact roller and do you know it?

Impact roller is a new type of engineering compaction machinery and equipment, a kind of towing roller belonging to the roller, its roller is usually composed of 3 5-sided non-round steel wheels, has no power of its own, and needs to roll under the drive of traction equipment such as impact roller tractor truck, and is used for compacting the foundation or breaking the road surface.

Here's how the encyclopedia describes impact rollers:

Impact roller, also known as impact roller, impact compactor, impact roller, is a new type of towed roller belonging to the roller. The impact roller drives a single or a pair of impact wheels through the traction of tractors, bulldozers, loaders and other traction machinery, and uses the weight of the impact wheels themselves and the impact force when moving forward to crush and compact the cement pavement and roadbed.

The GB T 25626-2010 national standard for impact rollers was first released on December 1, 2010 and was implemented on March 1, 2011. The second edition began in 2019 and the new version was implemented on April 1, 2019. ”

32kj impact roller.

30kj impact roller.

Trilateral impact rollers.

Pentagon impact rollers.

Impact rollers and impact roller tractors.

The following impact roller products are displayed in order of model size:

American customer with 380 impact roller tractor.

Malaysian customer with 32kj impact roller.

British customer with 320 impact roller tractor.

German customer with 30kj impact roller.

South Asian customer with 25kj impact roller.

Pakistani customer with trilateral impact rollers.

Russian customer with pentagonal impact rollers.

Middle East customer with impact rollers.

Indian customer with impact rollers.

Dutch customer with impact rollers.

Indian customer with impact rollers.

The impact roller is the impact roller, also known as the impact compactor, which is the special construction machinery and equipment used in the impact rolling construction process, which belongs to the road roller.

Impact rollers.

The impact roller is usually composed of 3 5 non-circular equilateral rollers, because it does not have power, it needs to be driven by traction machinery such as impact roller tractors or large tractors for rolling construction.

The impact roller consists of two parts, a tractor and a compaction device, which are connected by a buffer frame connection assembly. The tractor is divided into front and rear frames, and the middle is connected with a steering twist as the slewing center of the steering mechanism of the hydraulic cylinder. The front frame houses components such as the engine, hydraulic transmission, front axle and cab.

Impact compaction technology has been widely used in the country, but due to the different soil quality, stamping roller model, application conditions, etc., its compaction effect, construction technology, and quality control are also different, so it is necessary to build a test section before construction to determine the appropriate construction technology and quality control standards. In the early days, impact rollers were mainly used in airports or high-level highways or railways, and it is not difficult to see that the rolling effect of impact rollers is superior to that of ordinary vibratory rollers.

Impact rollers are construction machinery and equipment, mainly used for foundation compaction and road surface crushing. The impact roller is a new type of tow roller that is different from the cylindrical rollers of conventional rollers.