Highway subgrade pressure resistance test device

Abstract

The invention relates to a highway subgrade pressure resistance test device. The highway subgrade pressure resistance test device comprises a supporting plate, a vertical column, a moving block, sidesupporting rods, locking plates, connecting rods and a bearing plate; threaded holes are formed in the outer end of the supporting plate symmetrically, the vertical column is installed on the upper end surface of the supporting plate, the moving block is of a hollow square column structure, the moving block is located on the outer side of the middle part of the middle column, the connecting rods are symmetrically mounted at the top of the moving block, and the bearing plate is mounted at the top of the connecting rods; and the side supporting rods are symmetrically distributed at the bottom ofthe outer end of the moving block, the side supporting rods are arranged obliquely, the tops of the side supporting rods are connected to the bottom of the moving block through a hinge, and the locking plates are installed at the bottoms of the side supporting rods through hinges. The highway subgrade pressure resistance test device can solve the problems that an existing detecting device is poorin overallity after adjusting the force receiving area of the detecting device and the detecting device can possibly roll over due to uneven force during subgrade pressure resistance detection.

Description

technical field [0001] The invention relates to the technical field of road surface construction, in particular to a road bed anti-pressure testing device. Background technique [0002] The subgrade is the foundation of the road surface. The main function of the subgrade is to provide the necessary conditions for pavement laying or driving operation. The subgrade needs to bear the static and dynamic loads of rolling stock or road surface and traffic loads, and at the same time transfer and spread the load to the depth of the foundation. [0003] After the construction of the subgrade is completed, it is necessary to test its compressive strength so that the pavement can reach the required compressive strength. When testing the subgrade after construction, the test device needs to be placed in the pre-set detection pit on the subgrade. The engineering vehicle squeezes the top of the detection device to observe the degree of subsidence of the detection device. The problems exi...

AI Technical Summary

Problems solved by technology

[0004] The adjustment of the stress area of ​​the existing detection device is generally carried out by connecting an external connection plate on its base. After this adjustment method is completed, the integrity of the external connection plate and the detection device is poor, and the detection device will be affected due to uneven force. rollover phenomenon

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