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Drilling verticality monitoring and deviation rectifying method along with drilling process

A process monitoring and verticality technology, applied in measurement, drilling equipment, directional drilling, etc., can solve problems such as the inability to monitor the verticality of the borehole in real time, the inability to rectify the deviation independently, and the quality of the pile that affects the construction efficiency, so as to improve the quality of the hole. and construction efficiency, avoiding multiple shutdowns for adjustment, and high control accuracy.

Pending Publication Date: 2020-11-27
BEIJING MUNICIPAL CONSTR
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Problems solved by technology

[0005] Aiming at the deficiencies of the existing technology, the present invention provides a method for monitoring the verticality of the borehole and correcting the deviation during the drilling process, which solves the problem that the traditional verticality control method of the borehole cannot monitor the verticality of the borehole in real time, and cannot correct the deviation independently, which affects the construction efficiency and the quality of piles

Method used

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  • Drilling verticality monitoring and deviation rectifying method along with drilling process
  • Drilling verticality monitoring and deviation rectifying method along with drilling process
  • Drilling verticality monitoring and deviation rectifying method along with drilling process

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Embodiment

[0032] Such as Figure 1-4 As shown, the embodiment of the present invention provides a method for monitoring the verticality of the borehole and correcting the deviation during the drilling process, including the following steps:

[0033] S1. Drilling machine in place

[0034] After confirming the drilling position, move the drilling machine to the construction position;

[0035] S2. Install verticality monitoring system and drill bit correction system

[0036] First place the verticality sensor inside the drill bit of the drilling rig and fix it, and arrange three positioning transmitter receivers on the ground around the drill hole. The three positioning transmitter receivers are placed in a circular array on the ground with the drill hole as the center of the circle. And the distance between the three positioning transmitter receivers and the central axis of the drilling is 4000mm, and the three positioning transmitter receivers are connected to the computer terminal thr...

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Abstract

The invention provides a drilling verticality monitoring and deviation rectifying method along with a drilling process, and relates to the field of auxiliary devices and methods for drilling cast-in-place pile construction. The drilling verticality monitoring and deviation rectifying method along with the drilling process comprises the following steps that S1, a drilling machine is in place, and after the drilling position is confirmed, the drilling machine is moved to a construction position; and S2, a verticality monitoring system and a drill bit deviation rectifying system are installed, firstly, a verticality inductor is placed in a drill bit of the drilling machine and fixed, three positioning emission receivers are arranged on the ground around a hole to be drilled, the three positioning emission receivers are connected with a computer terminal through cables, and the drill bit is provided with a hydraulic deviation rectifying device. According to the method, the verticality of the inner wall of the drilled hole can be monitored in real time, the drilling direction of the drill bit can be adjusted in real time according to the monitoring data, automatic deviation rectifying is realized, and the hole forming quality and the construction efficiency are guaranteed.

Description

technical field [0001] The invention relates to the field of auxiliary devices and methods for the construction of bored piles, in particular to a method for monitoring the verticality of boreholes and correcting deviations during the drilling process. Background technique [0002] The verticality of bored piles is an important factor affecting its engineering effect. If the verticality does not meet the requirements, its bearing capacity and water-stop effect will be greatly reduced. However, the verticality control of bored piles is still a current engineering problem. [0003] At this stage, the verticality of the drilling equipment is mainly checked by means of a spirit level and a plumb weight to control the verticality of the drilling. These methods are difficult to guarantee the accuracy of the verticality control of the drilling, and cannot achieve self-correction. Therefore, it is really necessary to invent a device and method capable of real-time monitoring of bore...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/10E21B47/022E21B44/02
CPCE21B7/10E21B44/02E21B47/022
Inventor 郑昊管禹聂金池赵秀海马景霞王栋浩邢宇贾鹏云杨扬黄婷董亚航李想王珩田忠豪孙贺伟晋佳宝
Owner BEIJING MUNICIPAL CONSTR
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