Method for determining the load-bearing properties of reinforced foundation soils under different loads
A technology of foundation soil and reinforcement, which is applied in foundation structure engineering, on-site foundation soil survey, construction, etc., can solve the problem of insufficient research on the distribution of soil mass and layered settlement inside the reinforced foundation, and achieve accurate foundation testing Settlement, effect to improve accuracy
Inactive Publication Date: 2018-06-19
HUBEI UNIV OF TECH
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Problems solved by technology
However, the existing technology is not deep enough to study the distribution law of the internal soil and layered settlement of the reinforced foundation under the action of flexible loads such as the foundation.
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[0018] Below in conjunction with accompanying drawing and example the present invention is further explained and illustrated:
[0019] refer to figure 1 , 2 , the concrete steps of the present invention are:
[0020] 1) Make a reinforced foundation model
[0021] A vertical loading device is installed on the beam 8. There are baffles 2 at the front and back of several transparent model boxes 1, and transparent organic glass 3 is sandwiched between the baffle plate 2 and the transparent model box 1, and a printing grid is pasted on the outside of the transparent organic glass 3. Film 4, the top surface of the transparent model box 1 is filled with soil samples, and the top surface is covered with a rigid bearing plate 5 to simulate the foundation. There are 3 dial gauges 6 symmetrically arranged on the rigid bearing plate 5, and the high-speed photography system 7 faces directly from the bottom. Transparent model box 1;
[0022] The baffle plate 2 is a detachable ribbed fra...
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The invention relates to a method for measuring the soil bearing characteristics of a reinforced foundation under different loads. The method comprises the following steps: producing a reinforced foundation model: mounting a vertical loading device on a cross beam, placing baffles around a plurality of transparent mold boxes, arranging transparent organic glass between the baffles and the transparent model boxes in a clamped manner, posting a printed grid transparent film on the outer side of the transparent organic glass, after placing soil samples in the transparent model boxes, laying a rigid bearing plate on the top surfaces of the transparent model boxes to simulate the foundation, symmetrically distributing 3 dial indicators on the laying rigid bearing plate, and placing a high-speed photographic system under and over against the transparent model boxes; exerting loads P in a graded manner via the vertical loading device on the cross beam, so as to simulate overlying loads; reading layered settlement volumes on the printed grid transparent film; measuring the total settlement volume via the three dial indicators on the rigid bearing plate; monitoring the changing process of layered settlement of the foundation under the action of the loads via the high-speed photographic system; tracking and recording settlement rule data of each layer of the foundation in the loading process. The structure is simple; the use is convenient and practical; the reliability is good; the accuracy is high.
Description
technical field [0001] The invention belongs to the field of measuring the bearing performance of foundations, in particular to a method for measuring the bearing characteristics of reinforced foundation soil under different loads. Background technique [0002] The bearing capacity of the foundation is an important index reflecting the stability of the soil structure, and at the same time reflects the influence of this stability on the strength and deformation capacity. The stability of the foundation directly affects the safe operation of the building and is one of the control and operational factors in the design of the building. Therefore, increasing the bearing capacity of the foundation and reducing settlement through advanced reinforcement technology has been paid more and more attention. Reinforced foundation is a method of foundation treatment, which refers to laying a reinforced cushion composed of reinforcement and some kind of filling soil in a certain range of w...
Claims
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IPC IPC(8): E02D1/00
CPCE02D1/00
Inventor 李丽华高萌肖衡林马强刘永莉庄心善胡其志王翠英杨俊超陈艳君
Owner HUBEI UNIV OF TECH