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A Construction Method for Clearing Underground Obstacles Using Full Rotary Drilling Rig

A technology of underground obstacles and full-rotary drilling rigs, which is applied in the direction of rotary drilling rigs, drilling equipment and methods, and rotary drilling, etc., can solve the problems of large impact on soil and surrounding buildings, shorten the construction period and improve work efficiency. Efficiency, the effect of improving the efficiency of cleaning and transportation

Active Publication Date: 2022-05-13
MCC TIANGONG GROUP
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  • Claims
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a construction method for removing underground obstacles using a full-rotary drilling rig, and to solve the problem that the traditional hydraulic grab bucket has a greater impact on the soil and surrounding buildings when removing obstacles

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  • A Construction Method for Clearing Underground Obstacles Using Full Rotary Drilling Rig
  • A Construction Method for Clearing Underground Obstacles Using Full Rotary Drilling Rig
  • A Construction Method for Clearing Underground Obstacles Using Full Rotary Drilling Rig

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] A construction method for removing underground obstacles by using a full-turn drilling rig, including taking a full-turn drive device 1 and installing it on a concrete guide wall 2 that has been constructed, and adjusting the full-turn drive device and the concrete after the installation of the full-turn drive device 1 The parallelism of the installation surface of the guide wall 2 makes the center line of the full-turn drive device perpendicular to the ...

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Abstract

The invention discloses a construction method for removing underground obstacles by using a full-rotary drilling rig, which includes taking a full-turn driving device and installing it on a concrete guide wall that has been constructed, and using a first steel casing and a second steel casing with different diameters. Two steel sleeves and grab device, drive the first steel sleeve to cut the old concrete structure through the rotary drive device, and cut the old concrete structure into cylindrical concrete blocks again through the second steel sleeve inside the first steel sleeve Then grab it out through the grab device. The present invention cuts underground obstacles by using the alloy knife teeth on the first steel casing and the second steel casing to make a certain gap between the cut obstacle and the side wall of the first steel casing, which is more conducive to the grab device Grasping and transporting the cut obstacles avoids the disturbance of the underground soil and the impact on the surrounding buildings when the hydraulic grab is used to break and grab the construction in the traditional method, and it also greatly improves the work efficiency.

Description

technical field [0001] The invention relates to the technical field of foundation and foundation engineering construction, in particular to a construction method for removing underground obstacles by using a full-rotary drilling rig. Background technique [0002] With the continuous development of my country's economy, the construction and redevelopment projects of large and medium-sized cities, the renovation of old urban areas, and underground maintenance structures are constantly increasing. Often, obstacles such as old concrete structures and old pile foundations left underground need to be removed. These underground obstacles have become a thorny problem in the construction of underground pile foundations, directly affecting the construction progress and quality of the project. Therefore, the removal of underground obstacles is particularly important. The work of removing obstacles is mainly aimed at the cutting and removal of underground obstacles. For such problems, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B7/20E21B10/43E21B10/54E21B3/00E02D13/08
CPCE21B7/20E21B10/43E21B10/54E21B3/00E02D13/08
Inventor 肖策王龙张轩
Owner MCC TIANGONG GROUP
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