Auxiliary Measuring Device and Measuring Method for Central Axis of Tunnel

An auxiliary measurement and central axis technology, applied in the direction of measuring devices, mechanical measuring devices, measuring instruments, etc., can solve the problems of long construction period, low working efficiency, and difficulty in achieving measurement results, etc., and achieve convenient operation and low error rate , The effect of reducing the measurement workload

Active Publication Date: 2022-05-31
青岛海大建科岩土工程有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The measurement method adopted in the existing technology is used as the construction process in the construction process, which takes a long time period, and due to the high requirements on the environment during the measurement operation, it is necessary to set the conditions such as risk elimination, dust removal, ventilation and lighting in advance, and it is difficult to achieve accurate operation. measurement results, the work efficiency is not high

Method used

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  • Auxiliary Measuring Device and Measuring Method for Central Axis of Tunnel
  • Auxiliary Measuring Device and Measuring Method for Central Axis of Tunnel
  • Auxiliary Measuring Device and Measuring Method for Central Axis of Tunnel

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Embodiment 1

[0029] Example 1, as image 3 and Figure 4 As shown, the auxiliary measuring device for the central axis of the tunnel described in this application includes a level ruler 3 and a height measurement ruler 5 that are connected vertically.

[0030] Wherein, a level bubble 4 is provided on the level ruler 3;

[0031] The height measuring ruler 5 has a fixed part sleeved on the level 3, and a vertically retractable movable part connected with the fixed part; the top of the fixed part is provided with a reflector 1, an upper pulley 2 and a pointer 8; The pulley 2 can slide back and forth laterally on the top of the level 3, so as to realize the overall lateral displacement of the height measuring ruler 5 relative to the level 3; during the lateral displacement of the height measuring ruler 5, the pointer 8 can read the reflective sheet 1 pointing to the level. 3; several fixing bolts 7 are installed laterally on the fixed part; and a lower pulley 6 is connected to the bottom end...

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Abstract

The tunnel central axis auxiliary measuring device and its measuring method described in the present invention provide a simple and convenient auxiliary special measuring tool for accurately measuring the coordinates of the intersection point between the vertical normal of the tunnel central axis and the tunnel, thereby realizing accurate , Quickly measure and calculate the position of the point on the central axis, and finally calibrate the central axis of the tunnel. The auxiliary measuring device includes a level ruler and a height measuring ruler vertically connected; the height measuring ruler has a fixed part sleeved on the level ruler, and a vertically telescopic movable part connected with the fixed part; There are reflectors, upper pulleys and pointers; several fixing bolts are installed laterally on the fixed part; the lower pulley is connected to the bottom of the movable part.

Description

technical field [0001] The invention relates to an auxiliary measuring device for measuring the central axis of a tunnel and a method thereof, belonging to the technical field of monitoring and measuring of geotechnical engineering. Background technique [0002] With the rapid development of my country's economy, the construction of urban underground projects is limited by surface structures, and the shield tunneling method is increasingly used in underground tunnel projects. [0003] After the shield construction, it is necessary to use segment assembly for support to ensure that the tunnel section has standard firmness and stability. In order to ensure that the shield machine is advanced along the central axis of the tunnel design, the shield construction measurement should randomly provide the instantaneous attitude of the shield machine. At the same time, the installation quality of the tunnel lining ring, such as the deviation of the lining failure center, the ovality ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/27G01B11/00G01B5/252G01B5/004G01B5/00G01C15/00
CPCG01B11/27G01B11/002G01B5/252G01B5/004G01B5/0004G01C15/00Y02E10/20
Inventor 杨东仁李兆彬黄习习彭华东臧国强李耀苏秀婷
Owner 青岛海大建科岩土工程有限公司
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