Soil nail or anchor rod construction positioning device

Abstract

The utility model discloses a construction positioning device for a soil nail or an anchor rod. The construction positioning device comprises a supporting frame, a base is arranged on the supporting frame, supporting plates which are oppositely arranged are fixed to the upper end face of the base, a connecting rod is fixed between the supporting plates, a rotating sleeve is sleeved on the connecting rod, and a bearing is arranged between the rotating sleeve and the connecting rod. A supporting arm is fixed to the rotating sleeve, a horizontally-arranged guiding piece is fixed to the upper end of the supporting arm, and a guiding groove is formed in the guiding piece. The height of the centroid of a formed hole is ensured through the height-adjustable tripod, and the incident angle of the formed hole is ensured through the rotating sleeve, so that soil nails or anchor rods (cables) in the same row can be arranged at the same height, the incident angle of the formed hole of each hole is the same, and the stress state of the soil nails or anchor rods (cables) is ensured; a supporting structure system formed by a soil nailing wall, an anchor rod (cable) or other structures in a combined mode can effectively exert the anchoring force of a rock-soil body according to requirements, and the expected effect of slope protection or foundation pit supporting can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of slope protection and foundation pit support, in particular to a soil nail or anchor rod construction positioning device. Background Art

[0002] Soil nails and anchor rods (cables) are structural components of support structures and are widely used in geotechnical engineering slope protection and foundation pit support for industrial and civil construction projects, as well as municipal projects such as railways and highways. Soil nailing typically involves drilling a hole in the rock at a specific angle, inserting a deformed rebar (i.e., ribbed rebar), and grouting along the entire length of the hole to form the soil nail. Soil nails can also be constructed using steel pipes, angle steel, or other materials, driven directly into the soil. Anchor rods typically involve drilling a hole in the rock at a specific angle, inserting a deformed rebar (i.e., ribbed rebar) to form the anchor rod, or inserting a steel strand to form the anchor cable. These anchor rods (cables) can be constructed with a free end and an anchoring section. Grouting the anchoring section results in prestressing through tensioning to form the anchor rod (cable). Alternatively, fully bonded anchor rods (cables) can be constructed with grouting along the entire length without tensioning.

[0003] In the current construction drilling process of soil nails and anchor rods (cables), there is a lack of easy-to-operate devices for accurately controlling the centroid height and incident angle of the drilling, making it difficult for the same row of soil nails or anchor rods (cables) to be arranged at the same height. It is also very easy for the incident angles of the drilling of each hole to be different, which seriously affects the stress state of the soil nails and anchor rods (cables). As a result, the soil nail wall, anchor rods (cables) or the support structure system composed of other structures cannot effectively exert the anchoring force of the rock and soil according to the design requirements, resulting in the slope protection or foundation pit support failing to achieve the expected effect, and even partial or overall failure of the slope protection or foundation pit support may occur, posing a safety hazard. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the present invention provides a soil nail or anchor rod construction positioning device. The technical problem to be solved by the present invention is achieved through the following technical solutions:

[0005] A soil nail or anchor construction positioning device includes a support frame, a base is provided on the support frame, support plates are fixed to the upper end faces of the base, connecting rods are fixed between the support plates, a rotating sleeve is mounted on the connecting rod, and a bearing is provided between the rotating sleeve and the connecting rod; a support arm is fixed on the rotating sleeve, a horizontally arranged guide is fixed to the upper end of the support arm, and a guide groove is provided on the guide.

[0006] Furthermore, a plumb line with a length scale is provided at the center of the lower end surface of the base.

[0007] Furthermore, a circular level is fixed at the center of the upper end surface of the base.

[0008] Furthermore, an angle scale is horizontally fixed on the inner side of any of the support plates, and an angle pointer is horizontally fixed on one side of the rotating sleeve close to the angle scale, and the angle pointer points to zero degree of the angle scale.

[0009] Furthermore, the guide groove is a semicircular groove that opens vertically upward along the length direction.

[0010] Furthermore, a plurality of pairs of clamping bolts are relatively arranged on the support plate, and the clamping bolts are opposite to the two side walls of the rotating sleeve. By adjusting the positions of the clamping bolts at the same time, the ends of the clamping bolts can clamp or loosen the rotating sleeve.

[0011] Beneficial effects of the utility model:

[0012] 1. The utility model can ensure the centroid height of the hole through the adjustable height tripod, and ensure the incident angle of the hole through the rotating sleeve, so that the soil nails or anchor rods (cables) in the same row can be arranged at the same height, and the incident angle of each hole is the same, thereby ensuring the stress state of the soil nails or anchor rods (cables). The support structure system composed of soil nail walls, anchor rods (cables) or other structures can effectively exert the anchoring force of the rock and soil body as required, so that the slope protection or foundation pit support can achieve the expected effect.

[0013] 2. By setting a plumb line with a length scale, the entire device can quickly reach the designed height, effectively reducing the possibility of deviation in the centroid height during the construction of soil nails or anchor rods (cables);

[0014] 3. By setting a circular level, the initial levelness of the entire device is ensured;

[0015] 4. By setting the angle dial and angle pointer, the rotation angle of the rotating sleeve can be accurately adjusted, thereby ensuring the construction incident angle of the hole.

[0016] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of part A;

[0019] Figure 3 This is a schematic diagram of the top view of the structure of the utility model after removing the support arm and the guide member;

[0020] Figure 4The figure is a side view of the guide structure (only part of the structure is shown in this figure).

[0021] Description of reference numerals:

[0022] 1-Triangular support frame; 2-Circular base; 3-Support plate; 4-Connecting rod; 5-Bearing; 6-Rotating sleeve; 7-Support arm; 8-Guide; 9-Angle dial; 10-Angle pointer; 11-Tightening bolt; 12-Plumb line; 13-Circular level; 8-1-Guide groove. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below with reference to specific embodiments, but the embodiments of the present invention are not limited thereto.

[0024] See Figures 1 to 4 The present invention provides a soil nail or anchor construction positioning device, specifically comprising a triangular support frame 1, a circular base 2 provided on the triangular support frame 1, the circular base 2 being hingedly connected to the triangular support frame 1, the upper end surface of the circular base 2 being fixed with opposing support plates 3, a connecting rod 4 being fixed between the support plates 3, the connecting rod 4 being a connecting bolt, the ends of the connecting bolt being respectively fixed to the two opposing support plates 3, and a bearing 5 being fixedly mounted on the connecting bolt, the outer periphery of the bearing 5 being fitted with a rotating sleeve 6, which can be rotated by rotating the bearing 5; a support arm 7 being fixed to the rotating sleeve 6, the upper end of the support arm 7 being fixed with a horizontally arranged guide member, the guide member 8 having a guide groove 8-1, the guide member 8 moving with the rotating sleeve 6 to provide guidance for the construction incident angle. The support arm 7 can be made of angle steel, round steel, steel bar, or steel pipe.

[0025] In order to facilitate observation of the rotation angle of the rotating sleeve 6, an angle dial 9 is horizontally fixed on the inner side of any support plate 3, and an angle pointer 10 is horizontally fixed on the side of the rotating sleeve 6 close to the angle dial 9, and the angle pointer 10 points to zero degrees of the angle dial 9; when the sleeve 6 is rotated, the angle pointer 10 rotates with the rotating sleeve 6, thereby displaying the rotation angle; the scale value of the angle dial 9 is accurate to 1°, and zero degrees is consistent with the horizontal plane.

[0026] In addition, in order to fix the rotating sleeve 6 conveniently and quickly when it is rotated to the designed angle, three pairs of clamping bolts 11 are relatively arranged on the support plate 3. The clamping bolts 11 are threadedly connected to the support plate 3. The clamping bolts 11 are rotated to move horizontally along the support plate 3; the clamping bolts 11 are opposite to the two side walls of the rotating sleeve 6. By adjusting the three pairs of clamping bolts 11 at the same time, the ends of the clamping bolts 11 can clamp the rotating sleeve 6 or loosen the rotating sleeve 6, thereby fixing or loosening the rotating sleeve 6.

[0027] In addition, in order to facilitate the adjustment of the height of the tripod support frame 1 so that the height of the entire positioning device meets the design height, a plumb line 12 is set at the center of the lower end surface of the circular base 2. The height of the tripod support frame 1 is measured by the plumb line 12, and then added to the remaining fixed-height components at the upper end of the tripod support frame 1 to obtain the height of the entire positioning device. The height of the entire positioning device can be adjusted by adjusting the height of the tripod support frame 1.

[0028] At the same time, in order to facilitate the observation of whether the entire device is level and ensure the accuracy of the subsequent hole excavation angle, a circular level 13 is fixed at the center of the upper end surface of the disc base. The circular level 13 can be used for monitoring at any time to facilitate timely adjustment of the device position.

[0029] Furthermore, the guide groove 8-1 is a semicircular groove with an opening in the longitudinal direction and facing vertically upward, so as to avoid interference with the excavation equipment during hole excavation and affecting the hole excavation process. Preferably, the guide member 8 can directly use a semicircular seamless steel pipe.

[0030] The specific use process of the construction positioning device is as follows:

[0031] During the process of drilling holes for soil nails or anchor rods (cables), when the foundation pit is excavated to a predetermined elevation, or when the side slope is trimmed to a predetermined height, the construction positioning device is placed in the foundation pit or at the location where the hole is to be drilled next to the side slope. Then, the opening and closing angles of the triangular support frame 1 are adjusted, and the length of the plumb line 12 is adjusted so that the height of the triangular support frame 1 reaches a preset height, and the level bubble of the circular level 13 is centered, so that the soil nail or anchor rod (cable) construction device remains horizontal, effectively reducing the possibility of deviation in the centroid height of the hole during the drilling process of soil nails or anchor rods (cables); then, the rotary Rotate the sleeve 6 so that the angle pointer 10 rotates from zero degrees pointing to the angle dial 9 to the designed construction incident angle, and then tighten the clamping bolt 11 on the support plate 3 so that the clamping bolt 11 presses against the rotating sleeve 6 to fix it, thereby fixing the angle of the guide member 8 for the soil nail or anchor hole, that is, fixing the construction incident angle of the soil nail or anchor hole, ensuring that the soil nail or anchor is drilled in the direction guided by the guide member 8, effectively reducing the possibility of deviation in the hole incident angle during the soil nail or anchor hole construction process, and at the same time making the notch height of the guide member 8 consistent with the height of the hole.

[0032] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A soil nail or anchor construction positioning device, characterized in that: It includes a support frame, a base is provided on the support frame, support plates are fixed to the upper end surface of the base, connecting rods are fixed between the support plates, a rotating sleeve is mounted on the connecting rod, and a bearing is provided between the rotating sleeve and the connecting rod; a support arm is fixed on the rotating sleeve, a horizontally arranged guide is fixed to the upper end of the support arm, and the guide is provided with a guide groove.

2. The soil nail or anchor construction positioning device according to claim 1, characterized in that: A plumb line with a length scale is provided at the center of the lower end surface of the base.

3. The soil nail or anchor construction positioning device according to claim 1, characterized in that: A circular level is fixed at the center of the upper end surface of the base.

4. The soil nail or anchor construction positioning device according to claim 1, characterized in that: An angle scale is fixed horizontally on the inner side of any supporting plate, and an angle pointer is fixed horizontally on one side of the rotating sleeve close to the angle scale, and the angle pointer points to zero degree of the angle scale.

5. The soil nail or anchor construction positioning device according to claim 1, characterized in that: The guide groove is a semicircular groove that opens vertically upward along the length direction.

6. The soil nail or anchor construction positioning device according to claim 1, characterized in that: A plurality of pairs of clamping bolts are arranged opposite to each other on the support plate. The clamping bolts are opposite to the two side walls of the rotating sleeve. By adjusting the positions of the clamping bolts at the same time, the ends of the clamping bolts can clamp or loosen the rotating sleeve.

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