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yxfbbiedtj
Wysłany: Sob 5:22, 02 Kwi 2011
Temat postu: _3529 lateral pressure of expansive soils
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p90x calendar
Lateral pressure of expansive soils
That any initial moisture content of soil samples obtained ~ curve experiments can be used in case of different initial moisture content. It should be noted the impact of Mindanao on the tick very Pp. The most adverse conditions should be designed to determine the Ai. For practical convenience, can also be a group of lateral pressure test and loading methods under several experimental conditions (initial load was 49 ~ 53.6kPa) to obtain a ~ and Mindanao P, curve (Figure 4). 3 Zouyue Jiang et al: Lateral pressure of expansive soils JJ3 Yu lateral pressure caused by swelling of 34 lap 4 when the structure (hereinafter the wall is down) under pressure in the soil will not cause any movement or deformation of the circumstances, this paper Fang Qu analysis can be applied directly. For the wall with a filling of the case as long as the conditions according to the construction, operation conditions, the system take a certain compaction energy, the initial soil water table of a group (a group of two, parallel test) on the side of the instrument by pressure experimental methods in the previous section obtained ~ curve and the P value. Since the vertical stress at different depths can be calculated using the formula (1) to calculate the wall at different depths to the point of lateral pressure. Is the water swelling backfill lateral pressure caused by static. If the wall has a variety of filling. Each course should fill the above experiment and calculation. When the retaining wall under pressure in the soil can be moved away from the soil surface can be rotated, breaking the soil mass behind wall shear, deformation, void ratio increases. Only a rapid decline, so the small lateral pressure caused by swelling. When the retaining wall by the external drive and move to the soil surface, soil mass behind wall under the extrusion pressure, void ratio change, P change with it. J in the anchor soil samples taken should be representative of soil compaction simulation of the passive stress state and then applying a squeeze pressure, and then cured by this calculated and the experimental side. Earth pressure at this time should be a regular passive earth pressure (】 A 2) / a superposition. * 5 Conclusion (1) In this paper, many of the cases of expansive soil water pressure resulting from the theoretical formula was demonstrated and discussed in the expansion of this formula is the normal force = 0, the lateral pressure of soil. (2) This article describes the search for ~ expansion capacity curve and the experimental method is simple and practical, good experimental data regularity. P port using the parameters obtained can be easily calculated under various conditions caused by expansion of lateral pressure, JJ4 homes Imperial College of fertilizer industry (since holding Sciences)】 993 Volume 16 (3)
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