Tunnel steel frame foot-locking anchor rod guiding and positioning device

A lock-foot bolt and guiding positioning technology, which is applied in the installation of bolts, directional drilling, mining equipment, etc., can solve the problems of initial support deformation, difficulty in ensuring the angle of the lock-foot bolt, etc., and achieve convenient movement and low cost , the effect of fewer operators

Pending Publication Date: 2019-07-16
THE FIRST ENG OF CHINA RAILWAY 16TH CONSTR BUREAU GROUP
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Problems solved by technology

At present, in the common construction of lock-foot bolts, drill pipes are generally used to lay against the steel frame. Due to the randomness of workers' work, it is difficult to ensure the angle of lock-foot bolts during construction. When the steel frame is in the weak surrounding rock section, the steel frame may settle or converge and cause the deformation of the primary support. This phenomenon is common in the current existing technology and has become a common problem and hidden danger in the quality of the tunnel primary support.

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  • Tunnel steel frame foot-locking anchor rod guiding and positioning device
  • Tunnel steel frame foot-locking anchor rod guiding and positioning device

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Embodiment Construction

[0019] 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. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0020] Such as figure 1 As shown, according to the embodiment of the present invention, a tunnel steel frame lock foot bolt guide and positioning device includes a steel plate 1, a long strip opening 6 is opened in the middle of the steel plate 1, and two Sliding fixture 2, described sliding fixture 2 is provided with elastic nut 3 at the position of matching opening 6, and described steel plate 1 is provided with guide pipe 4 through pulley 5, and described guide pipe 4 angle and locking foo...

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Abstract

The invention relates to a tunnel steel frame foot-locking anchor rod guiding and positioning device which comprises a steel plate, an opening is formed in the middle of the steel plate, two sliding clamps are installed on the steel plate, elastic nuts are arranged at the positions, matched with the opening, of the sliding clamps, a guiding pipe is arranged on the steel plate through a pulley, andthe angle of the guiding pipe is consistent with the angle of a foot-locking anchor rod. By applying the device, the tunnel primary support steel frame foot-locking anchor rod can be rapidly, efficiently and accurately constructed, and the construction quality of the primary support steel frame support is guaranteed.

Description

technical field [0001] The invention relates to the field of tunnel construction, in particular to a guiding and positioning device for locking foot bolts of tunnel steel frames. Background technique [0002] In tunnel construction, the initial support is generally equipped with steel frames. In the section where the surrounding rock is poor, the steel frame support plays a very important role. However, the stability of the steel frame mainly depends on the locking foot anchors. The construction quality of the rod, especially the angle and length of the locking foot anchor rod. At present, in the common construction of lock-foot bolts, drill pipes are generally used to lay against the steel frame. Due to the randomness of workers' work, it is difficult to ensure the angle of lock-foot bolts during construction. When the steel frame is in the weak surrounding rock section, the steel frame may settle or converge and cause deformation of the primary support. This phenomenon is...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D20/00E21B7/04
CPCE21B7/04E21D20/003
Inventor 马栋温嘉伟董跃锋王德超朱文凯
Owner THE FIRST ENG OF CHINA RAILWAY 16TH CONSTR BUREAU GROUP
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