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Mould segment ring (well wall) prefabrication device and mould segment ring (well wall) prefabrication method

A segment and model technology, which is applied in the field of model segment ring (well wall) prefabrication device and prefabrication, can solve the problems of small simulation range and large test piece size, and achieve the effect of protection strength and easy operation

Inactive Publication Date: 2019-06-21
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Even if the stress-bearing structure is taken as a whole and the relevant mechanical properties are studied, there is still the problem that the size of the specimen is too large, and the simulation range of the surrounding rock (soil) medium is small, which cannot satisfy the "simulation range should be at least larger than the excavation space." three times the requirement of

Method used

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  • Mould segment ring (well wall) prefabrication device and mould segment ring (well wall) prefabrication method
  • Mould segment ring (well wall) prefabrication device and mould segment ring (well wall) prefabrication method
  • Mould segment ring (well wall) prefabrication device and mould segment ring (well wall) prefabrication method

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Embodiment Construction

[0028] Below in conjunction with embodiment the present invention is further described.

[0029] Such as Figure 1-Figure 9 A model segment ring (well wall) prefabrication device shown includes a casting mold 5 and a form removal device; the casting mold 5 includes a cylinder 8, a base 7 and two semicircular formwork 9, and the cylinder The center of 8 is provided with a threaded hole 8-2 penetrating along the axis, the center of the bottom of the cylinder 8 is fixed with a cylindrical positioning protrusion 8-1, and there is a circular groove 7-1 in the middle of the base 7. There is a center hole 7-2 in the center of the groove 7-1, and the center hole 7-2 matches the radius and height of the cylindrical positioning protrusion 8-1, and the bottom of the cylinder 8 is located on the circle of the base 7. On the groove 7-1, the cylindrical positioning protrusion 8-1 is inserted into the central hole 7-2; two semicircular templates 9 are wrapped around the outer ring of the cy...

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Abstract

The invention discloses a mould segment ring (well wall) prefabrication device and a mould segment ring (well wall) prefabrication method, and belongs to the technical field of simulation experimentsof segment rings and well casings. The mould segment ring (well wall) prefabrication device is divided into a pouring device and a mould removal device; and the mould segment ring (well wall) prefabrication device has the removability integrally, and is convenient to operate. The device adopts a low-speed rotating coring method, so that the integrity and the strength of a test sample are protectedto the greatest extent. A mould segment ring (well wall) adopts the prefabrication method, prepared materials are poured into the device for pouring, after natural curing reaches the design strength,mould removal is carried out, and finally the formed segment ring (well wall) is obtained. The device is placed into a similar material of surrounding rock (a soil body), and a novel approach is provided for researching deformation, a broken mechanical mechanism and a structural mechanical characteristic of the segment ring (well wall), and an interactive relationship between the segment ring (well wall) and the surrounding rock (the soil body) in a small similar simulation experiment.

Description

[0001] Technical field [0002] The invention relates to a manufacturing method and device for a model segment ring (well wall), which is mainly used for simulating segment rings and well bores in small-scale similar simulation tests (similarity ratio is about 50). Background technique [0003] The simulation of existing segment rings (shaft walls) mostly uses methods such as PE pipes, prefabricated concrete, and nylon rings. Whether it is a similar simulation test or a 1:1 prototype test, there are problems such as too large specimen volume, complicated manufacturing process (requires mold removal + maintenance), high cost, and long production cycle, and most of the existing experimental research focuses on The structural mechanical characteristics of the segment ring (well wall) are analyzed, but there are few studies on the interaction relationship between the surrounding rock (soil) and the segment ring (well wall). In the study of the mechanical characteristics of the se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B21/04B28B21/82B28B21/90
Inventor 孙晓明任超张勇李干缪澄宇
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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