A kind of caisson settlement measurement method

A measurement method and technology of settlement, which is applied in the directions of measuring devices, height/level measurement, surveying and navigation, etc., can solve the problems such as the large influence of human factors, and achieve the effects of improving quality control, shortening construction period, and saving costs

Active Publication Date: 2015-08-12
SHANXI ERJIAN GRP
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The traditional settlement measurement requires the surveyors to measure regularly and uninterruptedly, so that human factors have a great influence on the control process

Method used

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  • A kind of caisson settlement measurement method

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Embodiment

[0013] Embodiment: Before the construction of the caisson, the control axis 3 of the well body is extended during the setting-out process of the caisson, and four concrete buttresses 1 are made on the extended axis. The horizontal distance between the concrete buttresses and the well body is greater than The subsidence depth of the well should be easy to observe and not be affected by the construction of the caisson. The size of the pier is 500mm×500mm×500mm cube, the buried depth is 400mm, and the elevation of the top of the pier should be consistent. A laser, or a laser flashlight. Such as figure 1 , the lasers are installed on the same axis and at the same elevation. The surrounding area should be well maintained to prevent equipment damage.

[0014] After the well body is constructed and before it is ready to sink, a vertical scale line should be drawn on the infrared control axis outside the well wall.

[0015] When the well body is sinking, by observing the relative p...

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Abstract

An open caisson settling volume measuring method includes the steps that four concrete buttresses are manufactured at the positions with certain distance (horizontal distance is larger than the settling depth of an open caisson) away from the periphery of an open caisson body before open caisson construction, and each concrete buttress is 100mm-higher than the ground; a laser horizontal instrument is arranged on each concrete buttress, and a scale graticule is arranged on each open caisson wall of four corners of the open caisson body; in the open caisson settling process, the laser horizontal instrument is started to conduct real-time monitoring on positions and elevation in the open caisson settling process. By means of the method, construction technical staff can conduct open caisson rectifying timely, and the open caisson construction quality is guaranteed. Meanwhile, measuring procedures are simplified, and personal errors in the measuring process are reduced. Construction is quickened. The method can be widely applied to open caisson construction structure settling quality control construction.

Description

technical field [0001] The invention belongs to the field of building construction, and in particular relates to a method for measuring the settlement amount of a caisson. Background technique [0002] During the construction, some buildings are buried deeply, the water content in the soil is high, and the groundwater level is high. It is difficult to solve the drainage problem after large-scale excavation, and the cost increases a lot; Suitable for large excavation construction. Under the above circumstances, caisson construction is a better construction method. [0003] At present, caisson construction is a mature construction technology, which is widely used in deep pits, basements, pump rooms, deep equipment foundations, bridge piers, wharves and other projects. However, due to the uneven bearing capacity of the foundation soil and the influence of groundwater in caisson construction, During caisson construction, it is more difficult to control the verticality and posi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D33/00G01C5/00
Inventor 刘钟骏高建民王林义马强李东王健郅振荣金将将张姣王建
Owner SHANXI ERJIAN GRP
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