Measuring and testing device and method for soil mass displacement field around loaded structure
A technology of the surrounding soil and test equipment, applied in the direction of measuring equipment, testing material strength by applying stable shear force, testing material strength by applying stable tension/compression, etc. Continuity and other problems, to avoid displacement jump and load fluctuation, structure setting and simple, uniform loading and control effect
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Embodiment 1
[0038] In a typical embodiment of the present invention, such as figure 1 As shown, a test device for measuring the displacement field of the soil around the loaded structure includes a bracket, a plane strain model groove, a loading mechanism and a recording mechanism.
[0039] The bracket, the bracket includes fixed supports 1 on both sides, and the fixed supports 1 on both sides are arranged at intervals of a set distance, and the bottom support beam 2 and the top reaction beam 3 parallel to each other are supported by the fixed support 1, and the bottom support beam 2 and The top reaction beam 3 is thickened I-beam, the width of both is 0.2m, the length is 1.2-1.8m, and the maximum applied reaction force of the top reaction beam is 1t.
[0040] The upper part of the bottom support beam 2 is connected to the plane strain model groove, and the two sides of the bottom support beam 2 are connected to the fixed support 1 by bolts; the top reaction beam 3 supports the loading me...
Embodiment 2
[0047] A test method for measuring the displacement field of soil around a loaded structure, using the test device for measuring the displacement field of soil around a loaded structure as described in Embodiment 1, specifically including the following:
[0048] First, determine the size of the plane strain model slot and the relative heights of the bottom support beam 2 and the top reaction beam 3 according to the research object;
[0049] Install the bottom support beam 2 and the top reaction beam 3 on the fixed support 1;
[0050] After splicing the front baffle and rear baffle of the plane strain model groove and the side soil retaining panels on both sides, they are set on the bottom support beam 2 and fixed by bolts. The displacement reference point is set by a paint pen on the front baffle 5;
[0051] Fill and compact the plane strain model groove, install the structure and the second connecting rod 7 after reaching the set height, one end of the second connecting rod ...
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