System and method for testing impact compacted roadbed

Abstract

The invention discloses a system and method for testing an impact compacted roadbed. The system comprises a pressure detection device, a settlement gauge, a drilled core sampling device, a drilled core analyzing device and a treatment device, wherein the pressure detection device is arranged to detect the bottom pressure of soil mass of the roadbed, the settlement gauge is arranged to detect the settlement amount of the soil mass before impact compacting and after impact compacting, the drilled core sampling device is arranged to sample a drilled core used for soil mass detection, the drilled core analyzing device is arranged to analyze the drilled core sampled by the drilled core sampling device so that the degree of compaction can be achieved, and the treatment device is arranged to output a testing result according to the detected bottom pressure, the settlement amount and the degree of compaction. According to the technical scheme, parameters of the bottom pressure, the settlement amount and the degree of compaction of the soil mass of the roadbed, which can reflect the impact compacting effect of the soil mass, can be tested comprehensively, so that the impact compacting effect is evaluated comprehensively; an optimal impact compacting mode can be found by technicians by using the output testing result in an assisting manner.

Description

technical field [0001] The invention relates to the field of transportation, in particular to a system and method for testing impact compacted roadbeds. Background technique [0002] Subgrade refers to the belt-shaped structure built according to the location of the route and certain technical requirements as the foundation of the road surface, and is the foundation of railways and highways. With the increasing demand for transportation volume due to economic development, the scale of railway and highway construction will further develop, and at the same time, higher requirements are put forward for the quality of roadbed compaction of railways and highways. Insufficient compaction of subgrade is one of the main reasons for local subsidence or premature failure of subgrade. In the construction of existing railways and highways, various early failures caused by insufficient subgrade compaction are not uncommon. Practice has proved that in the construction of railways and hig...

AI Technical Summary

Problems solved by technology

However, settlement monitoring can only test the settlement of the subgrade as a whole, and cannot reflect the compaction effect of each layer of the subgrade in detail, so it is difficult to meet the higher quality requirements for the subgrade compaction of railways and highways

[0006] Conventional compaction testing can only test the compaction of the soil surface, and it is difficult to test the compaction of deep subgrades

Settlement monitoring can only do overall settlement, and cannot describe the compaction effect inside the soil in detail

For the above problems, there is no good solution in the prior art

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