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Sunk duct piece test platform

A test platform and segment technology, applied in the direction of applying stable tension/pressure to test the strength of materials, etc., can solve the problems of limited research scope, single research purpose, restricted test research field and research space, etc., to save test space, The effect of easy detection

Inactive Publication Date: 2013-08-14
上海盾构设计试验研究中心有限公司 +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the research scope of this experiment is limited and the research purpose is relatively single, thus restricting the research field and research space of the experiment

Method used

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Embodiment Construction

[0019] The sunken segment test platform of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention cannot be limited by this.

[0020] see figure 1 with figure 2 , the illustrated sunken segment test platform includes a soil pit 1, a segment 8, a loading system, a control system, a monitoring system (not shown in the figure) and a data acquisition system (not shown in the figure). The sunken segment test platform has a clearance diameter of 8.5m, a clearance depth of 1.5m, and a design maximum uniform loading capacity of 0.5MPa.

[0021] The pit 1 is an open cylindrical pit dug under the ground; the pit bottom of the pit 1 is provided with a bottom plate 1.1 supporting the segment 8, and the lower end surface of the segment 8 is in contact with the segment 8. Balls 6 are arranged between the bottom plates 1.1 to form rolling bearing conditions wi...

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Abstract

The invention discloses a sunk duct piece test platform which comprises a soil pit, a duct piece, a loading system and a control system, wherein the soil pit is an open-ended cylindrical concave pit dug and constructed underground; the duct piece is placed in the middle of the soil pit in a manner that the axis of the duct piece is vertical; the loading system comprises a string ring structure, a hydraulic cylinder group and two tensile hydraulic cylinders; the string ring structure is embedded into the internal wall of the soil pit; the hydraulic cylinder group comprises three rows of loading cylinders; each row of loading cylinders is provided with 16 hydraulic cylinders; one end of each hydraulic cylinder is connected with the external wall of the duct piece; the other end of each hydraulic cylinder is fixedly connected with the internal wall of the string ring structure; the hydraulic cylinder group loads the duct piece; one end of each tensile hydraulic cylinder is fixedly connected with the internal wall of the string ring structure; the other end of each tensile hydraulic cylinder is connected with the internal wall of the duct piece by an anchor rod and loaded on an anti-floating point of the duct piece; and the control system comprises a pump station, an upper and lower half-ring control component, a middle whole ring control component and an anti-floating point control component, is connected with the loading system and controls the loading system to load the duct piece. The platform saves the space, is easy and simple to operate, and can simulate an anti-floating condition of the duct piece, and a test result accords with the engineering practice.

Description

technical field [0001] The invention relates to a test device for a shield segment, in particular to a sunken segment test platform, which belongs to the technical field of tunnel engineering. Background technique [0002] The shield segment is the main assembly component of the shield construction and the outermost barrier of the tunnel, which has the function of resisting soil pressure, groundwater pressure and some special loads. The quality of the shield segment is directly related to the overall quality and safety of the tunnel, and affects the waterproof performance and durability of the tunnel. The design of the lining segment is directly related to the structural safety and engineering investment of the tunnel, and the scientific and reasonable construction plan of each construction node is the guarantee to ensure the construction quality and service life of the tunnel structure. For this reason, the applicant has developed and designed a test series of whole-ring s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/10
Inventor 庄欠伟吕建中吴兆宇蒋华钦朱敏明陆晓华杨正何晓陈实彭世宝徐天明
Owner 上海盾构设计试验研究中心有限公司
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