Pile-supported reinforced embankment three-dimensional soil arching effect testing apparatus and pile-supported reinforced embankment three-dimensional soil arching effect testing method

A technology of reinforced embankment and soil arch effect, which can be used in measuring devices, soil material testing, material inspection products, etc., can solve problems such as the size of deformation and uncontrollable time, and achieve the effect of shortening the test time.

Inactive Publication Date: 2013-11-13
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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Problems solved by technology

[0003] The purpose of the present invention is to provide a pile-supported reinforced embankment three-dimensional soil arch effect test device and method to solve the problem that the size and time of deformation are uncontrollable when simulating the settlement of soft soil under load in the existing test device question

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  • Pile-supported reinforced embankment three-dimensional soil arching effect testing apparatus and pile-supported reinforced embankment three-dimensional soil arching effect testing method
  • Pile-supported reinforced embankment three-dimensional soil arching effect testing apparatus and pile-supported reinforced embankment three-dimensional soil arching effect testing method

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with drawings and embodiments.

[0024] see figure 1 with figure 2 As shown, the pile-supported reinforced embankment three-dimensional soil arch effect test device of the present invention includes a base 1, a pile 2, a water bag 3, a tempered glass plate 4, an angle steel 5, an earth pressure box 6, a horizontal reinforcement body 7, and an embankment filler 8. Displacement gauge 9, aqueduct 10 and reading instrument.

[0025] The base 1 is a rectangular frame, and a pile 2 is arranged at each of the four corners of the hollow part inside. A cross-shaped water bag 3 with a cross-shaped horizontal cross-section is set in the enclosed cavity part, and a water guide pipe 10 is left in the center of the four sides of the water bag 3; four angle steels 5 are embedded in the four inner corners of the base 1, and four The angle steels 5 are connected to form an angle steel frame, and four tempered glass...

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Abstract

The invention discloses a pile supported reinforced embankment three-dimensional soil arching effect testing apparatus and a pile-supported reinforced embankment three-dimensional soil arching effect testing method. The testing apparatus is composed of a rectangular box base, wherein piles are arranged at the four corners of the hollow part of the interior of the rectangular box base. The surfaces of the piles are flat and are at the same level. A cavity part surrounded by the piles and the rectangular box base is provided with a heteromorphic water bag with a cross-shaped surface. Four armorplate glasses encircle to form a rectangular space and are arranged on the rectangular box base. The upper surfaces of the piles and the heteromorphic water bag are provided with multiple earth pressure cells the upper parts of which are filled with embankment fill materials. A displacement meter is arranged on the top surface of the embankment fill materials. According to the invention, rubber water bags infused with water are used for filling the embankment fill materials layer by layer. As a result, the incompressibility of water ensures that relative displacement of a soil pile is always kept as zero when the embankment is filled to reach a reset height. The sedimentation of soft soil can be simulated by virtue of a method of gradual drainage of water, so as to accurately control the relative displacement of the soil pile.

Description

【Technical field】 [0001] The invention relates to a test device, in particular to a test device and a method for measuring the three-dimensional soil arch effect of a pile-supported embankment. 【Background technique】 [0002] The pile-supported reinforced embankment is composed of embankment filler, one or more layers of horizontal reinforcement, individual pile caps and rigid piles. It has the advantages of small total and differential settlement of the embankment, short construction period, and high embankment stability. Soil arching effect has an important influence on the bearing deformation behavior of embankment. The relative displacement of pile and soil is the root cause of soil arching effect in embankment. At present, plastic foam materials are often used in laboratory tests to simulate the settlement of soft soil under load, but the size and time of deformation are uncontrollable. 【Content of invention】 [0003] The purpose of the present invention is to provi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24G01C5/00
Inventor 曹卫平胡伟伟
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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