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Production method of forced centering observation mark stake for precision engineering measurement

A technology of forced centering and precision engineering, applied in the direction of measuring devices, instruments, etc., can solve problems such as large measurement errors and poor manufacturing stability, and achieve the effects of reducing settlement and offset, improving stability, and being easy to use

Inactive Publication Date: 2017-02-15
TIANJIN 20 CONSTR
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Problems solved by technology

[0005] What the present invention aims to solve is the technical problem of poor stability and large measurement errors in the production of existing observation stakes. It provides a method for making forced-centering observation stakes for precision engineering measurement. Reduce the centering error of the human eye, improve the measurement accuracy, increase the stability of the stake, reduce the probability of stake offset and settlement, and meet the accuracy requirements of precision engineering

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  • Production method of forced centering observation mark stake for precision engineering measurement
  • Production method of forced centering observation mark stake for precision engineering measurement

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Embodiment Construction

[0025] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0026] Such as figure 1 and figure 2 As shown, this embodiment discloses a method for making a mandatory centering observation stake for precision engineering measurement, which is carried out according to the following steps:

[0027] (1) Manually excavate the pile hole at the designed hole position until the pile hole is excavated to bedrock 1; during the pile hole excavation, attention should be paid to controlling the verticality of the pile hole, checking the quality of the hole, and cleaning the pile hole. Empty soil, remove water accumulated in the pile hole.

[0028] (2) After the excavation of the pile holes is completed, the reinforcement cage 2 shall be hoisted into the pile holes. Within the range of 1000-1500mm, it is subject...

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Abstract

The invention relates to a production method of a surveying control point mark stake, and discloses the production method of the force centering observation mark stake for precision engineering surveying. The method comprises the following steps: a stake hole is manually dug to a bedrock part; a steel reinforcement cage is hung in the stake hole, so that the bottom of the steel reinforcement cage is placed on the bedrock, and the a design height above the ground of the steel reinforcement cage is reserved; concrete is poured in the stake hole; after concrete below the ground is solidified, concrete is poured in a reserved steel reinforcement cage formwork above the ground; a forced centering bolt is embedded at a center position of the top of an overground part of the concrete stake, and the diameter of the bolt is matched with a bolt aperture at the bottom of a measuring instrument pedestal; a forced centering disc is embedded at the top of the overground part of the concrete stake, and the center of the disc passes through the forced centering bolt. Settlement and deviation are effectively avoided, damage is not easy, usage is convenient, observation errors are reduced, and observation precision is improved; during usage, a measuring instrument is directly screwed and connected to the forced centering bolt and leveled, interference factors are reduced and centering errors are reduced.

Description

technical field [0001] The invention relates to a manufacturing method of a survey control point marker stake in precision engineering survey, in particular to a manufacturing method of a forced centering observation stake used in precision engineering survey. Background technique [0002] Facing the current national requirements for environmental protection, energy saving, new materials, and new technologies in engineering construction, it is necessary to gradually eliminate industries with low production capacity and high consumption, and advocate the use of new materials, new technologies, new processes, and new equipment, which cannot achieve energy conservation and environmental protection. The required small-scale construction projects are no longer approved for construction, and replaced by large-scale projects with high efficiency, energy conservation and environmental protection. As the scale of construction projects increases, the requirements for the accuracy of m...

Claims

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Application Information

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IPC IPC(8): G01C25/00
CPCG01C25/00
Inventor 董玉启高军田永振韩国东闫永辉强明明何龙飞曲海达刘亚平王海量代言龙王硕
Owner TIANJIN 20 CONSTR
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