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Manufacture method of karst pile foundation anti-seismic test testing device

A technology of test device and production method, which can be used in measurement device, vibration test, machine/structural component test, etc., can solve the problem of lack of good test test device, and achieve low test cost, high test efficiency and novel design. Effect

Active Publication Date: 2016-05-04
中铁十一局集团第五工程有限公司 +1
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Problems solved by technology

There are many factors that affect the safe thickness of the cave roof, including geological strength index, cave size, pile diameter, physical parameters of the overlying rock and soil, single pile load, etc. At present, there is no good method for the damage of the underlying cave roof under the earthquake. Test device

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  • Manufacture method of karst pile foundation anti-seismic test testing device

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Embodiment Construction

[0035] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings.

[0036] Such as Figure 1~12 Shown, a kind of manufacturing method of karst pile foundation seismic test test device comprises the following steps:

[0037] (1) Make the mold frame 11: use four plexiglass plates to form a detachable square mold frame 11;

[0038] (2) Prefabricated cave model 6: first fix the mold frame 11 on the plane; then fix the hemispherical mold 12 with a predetermined diameter on the plane and in the middle of the mold frame 11; then weigh the model similar material 5 with a predetermined mass Pour it into the mold frame 11, and carry out layered compaction under the premise of ensuring the model density; then disassemble the mold frame 11, take out the hemispherical mold 12, and let it dry naturally to form a semi-karst cave model 63; ma...

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Abstract

The present invention relates to a manufacture method of a karst pile foundation anti-seismic test testing device. The method comprises the following steps: (1) making a die frame; (2) performing prefabrication of a karst cave model; (3) making a model box, a model pile and a pile cap; (4) filling the model box: respectively laying one layer of cystosepiment at two surfaces in the model box in the direction perpendicular to the vibration direction prior to filling, fixing the karst cave model at the middle of the model box when filling model simulation materials into a preset position, and continuously filing and compacting the model simulation materials at the circumference of the karst cave; (5) fixing the model pile: after fixing and filling the karst cave, fixing the model pile at the centre position of the top plate of the karst cave, and continuously filling the model simulation materials to allow the lower end of the model pile to be embedded at a preset depth of the model simulation materials; and (6) installing the pile cap: after drying the whole model, installing the pile cap, configured to perform upper load applying and dispose weighs, at the upper end of the model pile. The manufacture method of a karst pile foundation anti-seismic test testing device is simple and reliable, easy to realize and low in manufacture cost.

Description

technical field [0001] The invention relates to a manufacturing method of a karst pile foundation anti-seismic test device, which belongs to the field of karst pile foundation anti-seismic testing. Background technique [0002] China is an earthquake-prone country, and it is the country with the most frequent earthquakes and the most serious earthquake disasters in the world. Earthquake areas of degrees VI~IX in the mainland account for more than 80% of the country's land area, a large part of which is karst distribution area. With the rapid development of China, there are more and more engineering constructions in karst areas. The engineering geological conditions in the karst area are complex, and the surface densely covered with stone buds and the existence of karst caves all destroy the integrity of the foundation. Especially when an earthquake comes, the existence of caves intensifies the effect of the earthquake. Therefore, it is very necessary to study the seismic ...

Claims

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Application Information

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IPC IPC(8): G01M7/02
CPCG01M7/02
Inventor 黄明王元清张光武邓尚强
Owner 中铁十一局集团第五工程有限公司
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