Road deflection value dynamic measurement device and deflection value dynamic measurement deflection beam
A technology of dynamic measurement and angle measurement device, which is applied in the direction of roads, roads, road repairs, etc., and can solve problems that cannot be applied and affect traffic
Active Publication Date: 2020-05-19
HENAN JIAO YUAN ENG TECH CO LTD +1
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Problems solved by technology
The existing method of detecting the rebound deflection value of the Beckman beam mainly has the following problems: at the beginning of each road section test, the loading vehicle needs to be parked on the testing road section, and after the L1 value is measured, the loading vehicle moves forward for a certain distance. After a certain distance, you still have to stop on the test road section, that is to say, the whole measurement process is a static measurement process, which leads to the existing deflection value measurement method can only be used in road conditions where there are no other vehicles running, such as When measuring the deflection value of the road, it is necessary to close the road in advance, which greatly affects the traffic and cannot be applied to the road conditions that have been opened and used by other vehicles
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[0024] An example of a dynamic measuring device for road deflection value Figure 1~5 Shown: Including the loading vehicle and the deflection beam for dynamic measurement of deflection value, the loading vehicle 1 carries the deflection value dynamic measurement deflection beam 9 in the process of driving from back to front, the rear wheel of loading vehicle 1 is a single-sided double-wheel structure 16. The loading vehicle is an existing technology, and its specific structure will not be described in detail. Dynamic measurement of deflection value The deflection beam includes a beam body 10 extending in the front-to-back direction and a support 11 arranged at the rear of the beam body. The beam body 10 is hingedly connected to the support 11. In the wheel space of the wheel structure ( figure 1 One wheel of the double-wheel structure is hidden in the middle), the loading car 1 is provided with a beam body lifting mechanism for raising the height of the beam body, the beam bo...
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The invention relates to a road deflection value dynamic measurement device and a deflection value dynamic measurement deflection beam. The deflection beam comprises a support; a beam body with the length extending in the front-back direction is hinged to the support. At least three displacement measuring components which are arranged at equal intervals are arranged on one side of the support on the beam body; wherein the displacement measuring part at the front position is a head end displacement measuring part; wherein the displacement measuring component at the rear position is a tail end displacement measuring component, the displacement measuring component between the head end displacement measuring component and the tail end displacement measuring component is a middle displacement measuring component, and the distance between the support and the head end displacement measuring component is larger than the deflection influence radius of the wheel on the road to be measured. The invention provides the deflection value dynamic measurement deflection beam and the road deflection value dynamic measurement device using the deflection value dynamic measurement deflection beam, wherein the deflection value dynamic measurement deflection beam can complete road deflection value measurement in the running process of a loading vehicle.
Description
technical field [0001] The invention relates to a road deflection value dynamic measurement device and a deflection value dynamic measurement deflection beam in the field of road deflection value measurement. Background technique [0002] The deflection value refers to the deformation of the roadbed / pavement before and after the load acts on the roadbed / pavement, and the calculation unit is 1 / 100 mm. [0003] Rebound deflection refers to the vertical rebound deformation value produced by the subgrade and road surface wheel gap position under the specified standard axle load B22-100. The Beckman beam is a common deflection beam for dynamic measurement of the rebound deflection value. The Beckman beam is made of aluminum alloy, which includes the beam body and the support for supporting the beam body. The beam body on the front side of the support It is called the forearm, and the beam body on the back side of the support is called the rear arm. Usually, the length ratio of t...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E01C23/01
CPCE01C23/01
Inventor 邵景干尚廷东
Owner HENAN JIAO YUAN ENG TECH CO LTD