High embankment compacting foundation detecting and estimating method

Abstract

The invention discloses a detection and evaluation method for a high filling tamping foundation (shortened as DEHE Detection Evaluation Method). The detection procedures are as follows: firstly, the tamping construction of a first layer is made, then the soil layers of the tamping construction are approximately divided into a bottom layer, an intermediate layer and a surface layer to be detected, wherein, the detection of the bottom layer adopts a load test and a density test; the detection of the intermediate layer adopts a particle analysis test, a density test and a wave speed test; the detection of the surface layer adopts a load test, a density test, a wave speed test and a foundation resilience modulus test. The invention can greatly reduce the quantity of the detection, improve the detection efficiency, decrease the detection cost, and achieve the double effect.

Description

technical field [0001] The invention relates to a detection and evaluation method, in particular to a detection and evaluation method for high fill compacted ground. Background technique [0002] my country is a mountainous country. With the development of the economy and the implementation of the country's western development strategy, the air transport industry has developed rapidly, especially in the remote mountainous areas of Yunnan, Guizhou, Guangxi, Hunan, Hubei and other provinces. There are many airports (especially feeder airports) being planned. In the above-mentioned areas, there are generally large areas of high excavation, deep filling and compaction ground treatment sites. [0003] At present, there is no good method to detect the treatment effect of high fill compacted foundation. Conventional medium and heavy-duty dynamic penetrating testing is used for detection, but it is difficult to penetrate due to the large particle size of large rocks; geological and...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of high fill compacted ground detection and evaluation method, referred to as DEHE (Detection Evaluation, High Embankment High Embankment) detection and evaluation method, to solve the high fill compacted ground, block stone particle size Large and heavy-duty dynamic penetrating testing is difficult, and geological and geophysical testing cannot meet the designer's quantitative requirements for foundation testing indicators; and solve the problem of conventional density testing of high-fill compacted foundations, because the particle size of the filling soil needs to meet D<38mm Due to the limitation of the indoor compaction (standard or heavy-duty) test, the maximum dry density value of the high-fill foundation cannot be measured, and the conventional load test of the high-fill compact foundation needs to be solved. The test site is large, the test time is long, and the cost is high. high problem