CN210288373U - Internal inclined root key type anchor cable - Google Patents
Internal inclined root key type anchor cable Download PDFInfo
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- CN210288373U CN210288373U CN201822268830.9U CN201822268830U CN210288373U CN 210288373 U CN210288373 U CN 210288373U CN 201822268830 U CN201822268830 U CN 201822268830U CN 210288373 U CN210288373 U CN 210288373U
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Abstract
The anchor cable comprises an anchor platform, an anchor, a pressure-bearing mechanism and a rib body, wherein the anchor is fixedly connected to the anchor platform to form an outer anchoring section, the pressure-bearing mechanism is respectively connected with the rib body in series, the fixed end of the rib body is connected to the outer anchoring section, the hanging end of the rib body is used for hanging the pressure-bearing mechanism, the pressure-bearing mechanism is radially and outwardly provided with a plurality of root keys capable of extending into rock and soil bodies of the anchor hole, the included angle between the root keys and the horizontal direction ranges from 20 degrees to α degrees and less than 45 degrees, a through hole is formed in the center of the pressure-bearing mechanism, the circle centers of the through holes are positioned on the same straight line, a through hole is reserved on the outer anchoring section, the circle centers of the through hole and the through hole are positioned on the same straight line, the diameter of the through hole is the same as that of the through hole, a grouting pipe passes through the through hole, and the through hole form a sliding pair between the grouting pipe and the pressure-bearing mechanism and the outer anchoring section.
Description
Technical Field
The utility model relates to a technical field that anchor structural component or dado were used especially relates to an interior root key formula anchor rope that inclines.
Background
Anchor rope: when the main cable is anchored in the side hole of the suspension bridge, the main cable is divided into a plurality of steel bundles which are anchored in an anchor ingot respectively, and the steel bundles are called as anchor cables. The anchor cable is a prestressed steel strand which is fixed on the slope surface through the outer end and passes through the sliding surface of the side slope in a stable rock body with the other end anchored in the sliding surface, so that the anti-sliding resistance is directly generated on the sliding surface, the anti-sliding friction resistance is increased, the structural surface is in a compact state, and the integrity of the rock body of the side slope is improved, thereby fundamentally improving the mechanical property of the rock body, effectively controlling the displacement of the rock body, promoting the stability of the rock body, and achieving the purpose of renovating bedding, sliding slopes, dangerous rocks and dangerous rocks.
At present, when the compressive strength of a grouting body is not too high, in order to prevent the grouting body from being crushed, more pressure dispersion type anchor cables are adopted in engineering. The force of the pressure anchor cable is led out from the bottom of the drill hole, and the cement paste column bears the pressure from the bearing plate.
Engineering uses more pressure dispersion type anchor ropes, however, the stress mechanism of the anchor ropes in the prior art is approximately similar, and anchor ropes with different lengths are anchored on a bearing plate by arranging a multi-stage bearing system, so that the purpose of dispersing the stress of grouting body is achieved.
The resistance of the anchor cables is borne by the grouting body, and the dispersed type distributes the stress of the grouting body to each longitudinal section along the anchoring force direction. This places high demands on the strength of the grout and requires an increase in the diameter and length of the anchoring section to increase the effectiveness of the anchoring force. Therefore, the method of simply increasing the diameter and the length of the anchoring section is needed, a large amount of concrete is consumed, the construction difficulty is high, and the method is not economical.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a can increase effective bearing area, simultaneously, promote the root key formula anchor rope of interior slope of anchor section resistance to be suitable for the practicality more.
In order to achieve the above object, the utility model provides an interior slope root key formula anchor rope mainly provides following technical scheme:
the utility model provides an inner inclined root key type anchor cable which comprises an anchor platform, an anchorage device, a bearing mechanism and a rib body,
the anchorage device is fixedly connected with the anchor platform to form an outer anchorage section,
after the pressure-bearing mechanism is connected with the rib body in series, the fixed end of the rib body is fixedly connected to the outer anchoring section, the hanging end of the rib body is used for hanging the pressure-bearing mechanism, the pressure-bearing mechanism is outwards provided with a plurality of root keys capable of extending into the anchor hole rock-soil body along the radial direction, the included angle between the root keys and the horizontal direction is between 20 degrees and α degrees and 45 degrees,
the center of the pressure-bearing mechanism is provided with a through hole,
a through hole is reserved on the outer anchoring section, the circle centers of the through hole and the through hole are positioned on the same straight line, the diameter of the through hole is the same as that of the through hole,
the through holes and the through holes are used for the grouting pipes to pass through,
and sliding pairs are formed among the grouting pipe, the pressure bearing mechanism and the outer anchoring section.
The purpose of the utility model and the technical problem thereof can be further realized by adopting the following technical measures.
Preferably, the pressure bearing mechanism comprises a bearing body, a root key and a conical plug,
the through hole is arranged at the center of the conical plug,
the center of the bearing body is provided with a taper hole,
the inner wall of the taper hole is taken as a starting point, key holes are radially arranged along the bearing body, the number of the key holes is the same as that of the root keys, the included angle between the key holes and the horizontal direction is between 20 degrees and α degrees and 45 degrees, so that after the root keys are arranged in the key holes in a penetrating mode, the included angle between the root keys and the horizontal direction is between 20 degrees and α degrees and 45 degrees,
a sliding pair is formed between the root key and the key hole,
the outer wall of the conical plug is matched with the conical hole,
the sum of the length of the root key and the radius of the conical plug at the corresponding position is larger than the radius of the anchor hole,
the length of the root key is less than the radius of the anchor hole;
when the conical plug is plugged into the conical hole, the head of the root key extends into the anchor hole rock-soil body.
Preferably, the top diameter of the conical plug is larger than the bottom diameter of the conical hole, and when the conical plug is plugged into the conical hole, the conical plug and the key hole are overlapped.
Preferably, the top diameter of the conical plug is larger than or equal to that of the conical hole, and when the conical plug is plugged into the conical hole, the conical plug and the key hole are overlapped.
Preferably, the height of the conical plug is more than or equal to that of the conical hole.
Preferably, the head of the root key has a pointed end.
Preferably, the tail of the root key is matched with the outer wall of the conical plug in shape, so that the tail of the root key and the outer wall of the conical plug form surface contact.
Preferably, the root key is fixedly connected with a baffle piece at the contact part with the outer wall of the bearing body.
Preferably, the barrier member is made of a flexible material.
Preferably, the pressure-bearing mechanism is provided with a plurality of hanging holes, and the hanging ends of the rib bodies penetrate through the hanging holes.
Preferably, the inner-inclined root key type anchor cable further comprises an extrusion anchor, the rib body is arranged at the bottom of the pressure bearing mechanism, the extrusion anchor is fixedly connected to the surplus portion, and the outer diameter of the extrusion anchor is larger than the diameter of the hanging hole.
Preferably, the extrusion anchor is fixedly connected to the remainder by welding or by a snap.
Preferably, the bottom of the anchor platform is inclined.
Preferably, the pressure-bearing mechanisms are arranged in parallel.
Preferably, the plurality of hanging holes are uniformly distributed on one circumference of the pressure-bearing mechanism.
Preferably, the inner-inclined root key type anchor cable further comprises a position indicating mechanism, and the position indicating mechanism is used for indicating the position of the bearing mechanism in the anchor hole.
Preferably, the position indication mechanism is a guide cap, and the guide cap is fixedly connected to the bottom of the bottommost pressure bearing mechanism.
Preferably, the tip of the anchor hole has a first taper shape, and the tip of the guide cap has a second taper shape, the first taper shape corresponding to the second taper shape.
Preferably, the position indicating mechanism is a first displacement sensor, and the first displacement sensor is used for detecting displacement data of the bearing mechanism in the anchor hole.
Preferably, the inner-inclined root key type anchor cable further comprises a first remote interface and a terminal device, the first remote interface is arranged on the first displacement sensor, the first displacement sensor transmits detected displacement data to the terminal device through the first remote interface, and the terminal device is selected from a PC, a single chip microcomputer and a handheld terminal.
Preferably, the inner-inclined root key type anchor cable further comprises an alarm device, the alarm device is used for indicating whether the pressure bearing mechanism is in place or not, and when the pressure bearing mechanism is in place, the alarm device sends an alarm signal.
Preferably, the inner-inclined root key type anchor cable further comprises a second displacement sensor, and the second displacement sensor is used for indicating displacement data of the grout outlet of the grouting pipe in the anchor hole.
Preferably, the inner-inclined root key type anchor cable further comprises a second remote interface and a terminal device, the second remote interface is arranged on the second displacement sensor, the second displacement sensor transmits the detected displacement data to the terminal device through the second remote interface, and the terminal device is selected from a plurality of types of PCs, single-chip microcomputers and handheld terminals.
Preferably, the inner-inclined root key type anchor cable further comprises a grouting pipe collecting trolley, a grouting inlet of the grouting pipe is fixedly connected to the pipe collecting trolley, and the pipe collecting trolley is used for collecting the grouting pipe in the grouting process into the anchor hole, so that a grouting outlet of the grouting pipe is lifted.
Preferably, the inner-inclined root key type anchor cable further comprises a pipe collecting trolley speed setting device, the pipe collecting trolley speed setting device is used for setting the running speed of the pipe collecting trolley, and the operational formula of the running speed of the pipe collecting trolley is
Wherein v isVehicle with wheelsThe running speed of the pipe-collecting trolley, vInto-flow rate of slurry in the grouting pipe, SPipeCross-sectional area of the grouting pipe, SHole(s)-the cross-sectional area of the anchor eye.
Preferably, the inner-inclined root key type anchor cable further comprises a flow velocity measuring instrument, the flow velocity measuring instrument is used for measuring real-time flow velocity data of slurry in the grouting pipe, and the speed setting device sets the running speed of the pipe retracting trolley in real time according to the real-time flow velocity data.
Preferably, the slurry is output from a slurry conveying device, the flow rate of the slurry in the grouting pipe is set by the slurry conveying device, and the speed setting device sets the running speed of the pipe collecting trolley according to the set flow rate of the slurry.
The utility model provides an interior oblique root key formula anchor rope and applied this interior oblique root key formula anchor rope and realized to anchor eye grouting method accomplish in the anchor eye grouting process back, because radially outwards be equipped with a plurality of root keys that can stretch into in the anchor eye ground body on the bearing mechanism, the effective bearing area of bearing mechanism actually surpasss the area of its upper surface, simultaneously, the root key also has the interaction force with the ground body in the anchor eye, consequently, can promote anchor section resistance, in addition, because the utility model provides an interior oblique root key formula anchor rope in the root key formula anchor rope of using to the slope of anchor eye mouth, and, the value scope of root key and horizontal direction contained angle is 20 and is less than or equal to α < 45, under this kind of condition, no matter the atress, can both reduce or avoid the root key to drop from the key hole to, and, after the atress, the integrated configuration supporting body that combines to constitute between root key and the bearing body is inseparabler.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic view of a general structure of an inner-inclined root key type anchor cable according to a first embodiment of the present invention;
fig. 2 is a schematic structural view of the inner-inclined root key type anchor cable according to the first embodiment of the present invention when the grout outlet of the grouting pipe is located above the pressure-bearing mechanism and the bottom of the pressure-bearing mechanism is filled with grouting material;
fig. 3 is a schematic structural view of the inner-inclined root key type anchor cable according to the first embodiment of the present invention, when the grout outlet of the grouting pipe is located above the anchoring section and the anchoring section of the anchor hole is entirely filled with grouting material;
fig. 4 is a schematic view of a fitting relationship between a conical plug, a conical hole, and a root key applied to an inner-inclined root key type anchor cable according to an embodiment of the present invention.
Detailed Description
The utility model discloses a solve the problem that prior art exists, provide one kind and can increase effective bearing area, simultaneously, promote the interior inclination root key formula anchor rope of anchor section resistance to be suitable for the practicality more.
To further illustrate the technical means and effects of the present invention for achieving the objects of the present invention, the following detailed description of the embodiments, structures, features and effects of the inner-inclined root-key type anchor cable according to the present invention will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, with the specific understanding that: both a and B may be included, a may be present alone, or B may be present alone, and any of the three cases can be provided.
Example one
Referring to fig. 1-4, the first embodiment of the present invention provides an inner-inclined root key type anchor cable, which comprises an anchor platform 21, an anchor 22, a pressure-bearing mechanism 1, a rib body 15, the anchor 22 is fixedly connected to the anchor platform 20 to form an outer anchoring section, after the pressure-bearing mechanism 1 is connected in series with the rib body 15, the fixed end of the rib body 15 is connected to the outer anchoring section, the hanging end of the rib body 15 is used for hanging the pressure-bearing mechanism 1, the pressure-bearing mechanism 1 is provided with a plurality of root keys 3 capable of extending into an anchor hole rock-soil body along the radial direction, the range of the included angle between the root keys 3 and the horizontal direction is 20 degrees or more and α degrees or less and 45 degrees or less, a through hole 14 is formed in the center of the pressure-bearing mechanism 1, a through hole is reserved on the outer anchoring section, the through hole and the through hole 14 are in the same straight line, the diameter of the through hole is the through hole 14, the through hole 14 is used for a grouting pipe to pass through, a sliding pair is formed between the grouting pipe and the outer anchoring section 1 and the outer anchoring section, a free section is shown.
The embodiment of the utility model provides an interior inclination root key formula anchor rope is because radially outwards be equipped with a plurality of root key 3 that can go deep into in the 19 ground bodies of anchor eye on the pressure-bearing mechanism 1, the effective bearing area of pressure-bearing mechanism 1 actually surpasss the area of its upper surface, simultaneously, the ground bodies in root key 3 and the anchor eye 19 also have the interact power, consequently, can promote anchor section B resistance, in addition, because the utility model provides an interior inclination root key formula anchor rope in use 3 to the slope of anchor eye mouth to, the value scope of root key 3 and horizontal direction contained angle is 20 and is not more than α < 45, under this condition, no matter the atress whether can both reduce or avoid root key 3 to drop from the key hole, and, after the atress, the integrated configuration that combines to constitute between root key 3 and the supporting body 2 is inseparabler more the utility model provides an interior inclination root key formula anchor rope can improve the anchor effect of anchor rope effectively.
Referring to the attached drawings 1-4, the bearing mechanism comprises a bearing body 2, a root key 3 and a conical plug 10, a through hole is formed in the center of the conical plug 10, a conical hole 7 is formed in the center of the bearing body 2, key holes are formed in the radial direction of the bearing body 2 by taking the inner wall of the conical hole 7 as an initial point, the number of the key holes is the same as that of the root key 3, the included angle between each key hole and the horizontal direction is 20 degrees or more and α or less and 45 degrees, after the root key 3 penetrates through the key holes, the included angle between the root key 3 and the horizontal direction is 20 degrees or more and α or less and 45 degrees, a sliding pair is formed between the root key 3 and the key holes, the outer wall of the conical plug 10 is matched with the conical hole 7, the sum of the length of the root key 3 and the radius of the position corresponding to the conical plug 10 is larger than the radius of the anchor hole 19, so that the head of the root key 3 protrudes from the outer wall of the bearing body 2 after the conical plug 10 is plugged into the conical hole 7, the length of the root key 3 is smaller than the radius of the conical hole 19, when the bearing mechanism needs to be fed into the anchor hole 19, the diameter of the anchor plug 3 is not larger than that the diameter of the anchor hole 19, and the anchor plug 3 is ensured, and the diameter of the anchor plug 19 is not larger than that the diameter of the anchor plug 3 in the.
The utility model discloses a first embodiment, the top diameter of awl stopper 10 > the bottom diameter of taper hole 7 to avoid awl stopper 10 to spill from the taper hole, when awl stopper 10 was plugged in to taper hole 7, there was the coincidence between the bottommost end of awl stopper 10 and keyhole 7, thereby guaranteed that awl stopper 10 can apply centrifugal force to root key 3, made root key 3 hold straight into in anchor eye 19 ground body.
In the second embodiment of the present invention, the top diameter of the conical plug 10 is larger than the bottom diameter of the conical hole 7, so as to prevent the conical plug 10 from leaking out of the conical hole, and when the conical plug 10 is plugged into the conical hole 7, there is a coincidence between the topmost end of the conical plug 10 and the key hole 7, thereby ensuring that the conical plug 10 can apply centrifugal force to the root key 3, so as to push the root key 3 into the rock-soil body of the anchor hole 19.
In the third embodiment of the present invention, the top diameter of the conical plug 10 is larger than or equal to the top diameter of the conical hole 7, and when the conical plug 10 is plugged into the conical hole, there is a coincidence between the bottommost end of the conical plug 10 and the key hole, thereby ensuring that the conical plug 10 can apply a centrifugal force to the root key 3, so that the root key 3 is pushed into the rock-soil body of the anchor hole 19.
In the fourth embodiment of the present invention, the top diameter of the conical plug 10 > the top diameter of the conical hole 7, and when the conical plug 10 is plugged into the conical hole 7, the conical plug 10 completely covers the key hole, thereby ensuring that the conical plug 10 can apply centrifugal force to the root key 3, so that the root key 3 is advanced into the rock-soil body of the anchor hole 19.
In the fifth embodiment of the present invention, the top diameter of the conical plug 10 is equal to the top diameter of the conical hole 7, when the conical plug 10 is inserted into the conical hole 7, a plane is formed between the top surface of the conical plug 10 and the upper surface of the supporting body 2, and at this time, the supporting surface of the pressure-bearing mechanism is also a plane, which does not reduce the actual bearing area of the pressure-bearing mechanism and also does not cause stress concentration; the conical plug 10 completely covers the key hole, so that the conical plug 10 can apply centrifugal acting force to the root key 3, and the root key 3 is enabled to be propped into the rock-soil body of the anchor hole 19.
In the sixth embodiment of the present invention, the height of the conical plug 10 is greater than or equal to the height of the conical hole 7, in which case there is no remaining space between the conical plug 10 and the conical hole 7, and it can be ensured that the grouting body is filled in each grouting space during grouting, thereby avoiding the problem of reduction of the bearing capacity caused by the remaining space. In this embodiment, a circle of the conical plug 10 is flush with the bottom surface of the supporting body 2, and a circle of the conical plug 10 is flush with the bottom surface of the supporting body 2.
In the seventh embodiment of the present invention, the head of the root key 3 has a tip 4, and in this case, according to F ═ P × S, wherein F-acting force, P-pressure, S-area of stress, the root key 3 is in the process of being pushed forward to the anchor hole 19 rock-soil body by the centrifugal acting force provided by the conical plug 10, the pressure is large, and the root key 3 is more labor-saving and more convenient to push forward to the anchor hole 19 rock-soil body.
In the eighth embodiment of the present invention, the shape of the tail portion 5 of the root key 3 is adapted to the shape of the outer wall of the conical plug 10, so that the tail portion 5 of the root key 3 and the outer wall of the conical plug 10 form a surface contact therebetween. In this case, the centrifugal acting force applied by the conical plug 10 to the root key 3 has a larger force bearing area and is more uniformly stressed. If the tail part 5 of the root key 3 is made into a cylindrical shape, the tail part 5 of the root key 3 is in point contact with the outer wall of the conical plug 10, and the adverse effects of stress concentration effect and uneven stress on the root key 3 are easily caused. Moreover, a hole is left between the conical plug 10 and the root key 3, and the root key 3 cannot fill the keyhole completely, so that the anchoring effect is reduced.
In the ninth embodiment of the present invention, a stop member is fixedly connected to the root key 3 at a position contacting with the outer wall of the supporting body 2. The function of this piece of keeping apart is, in the process that the piece of keeping apart 3 makes centripetal motion for taper hole 7, when keeping apart the piece and leaning on the outer wall of supporting body 2, the piece of keeping apart 3 just can't continue to make centripetal motion for taper hole 7, consequently, can avoid the piece of keeping apart 3 from taper hole 7 drops.
Wherein, the barrier piece is made of flexible material. In this case, during the process of pushing the root key 3 toward the rock-soil mass in the anchor hole 19, since the spacer is made of a flexible material, no additional resistance is generated by the spacer 30.
The embodiment of the utility model provides a pressure-bearing mechanism's assembly method includes following step:
inserting the root key 3 into the keyhole, so that the head of the root key 3 faces the wall of the anchor hole, and the tail of the root key 3 faces the taper hole 7; the conical plug 10 is plugged into the conical hole 7 from the end with the smaller diameter, the conical plug 10 occupies the accommodating space of the conical hole 7, and the root key 3 is forced to further advance towards the rock-soil body and extend into the anchor hole 19 rock-soil body. In the case where the stopper is provided on the root key 3, the root key 3 is inserted into the keyhole from the outer wall of the carrier 2 with one end of the tail 5 of the root key.
As a specific implementation manner of the pressure-bearing mechanism 1, a plurality of hanging holes are provided on the pressure-bearing mechanism 1, and the hanging end of the rib body 15 passes through the hanging holes.
Taking the third pressure-bearing mechanism 1 as an example, the inner-inclined root key type anchor cable provided by the embodiment further comprises an extrusion anchor device 16, the rib body 15 leaves a surplus portion at the bottom of the pressure-bearing mechanism 1, the extrusion anchor device 16 is fixedly connected to the surplus portion, and the outer diameter of the extrusion anchor device 16 is larger than the diameter of the hanging hole. In this case, since the outer diameter of the extrusion anchor 16 is larger than the diameter of the hanging hole, the extrusion anchor 16 cannot pass through the hanging hole, and thus, the pressure bearing mechanism 1 can be prevented from falling off the tendon 15.
In this embodiment, as a specific implementation of the connection between the extrusion anchor 16 and the rib 15, the extrusion anchor 16 is welded or fastened to the rest.
In this embodiment, the bottom of the anchor platform 20 is a sloped surface 21. In this case, the anchor platform 20 can be matched with the slope of the side slope through the bottom slope 21, and the anchor cable can be used only by drilling the vertical or horizontal anchor holes 19 on the side slope, because the vertical or horizontal holes have an inclination angle with the side slope, the bottom of the anchor platform 20 is set to be the slope 21, so that the application of the anchor cable is facilitated.
In this embodiment, the plurality of hanging holes are uniformly distributed on one circumference of the pressure-bearing mechanism 1. In this case, since the plurality of hanging holes are uniformly distributed on the pressure-bearing mechanism 1, the stress points of the rib bodies 15 can be uniform, and therefore, the pressure-bearing mechanism 1 is prevented from being inclined.
Referring to fig. 1 to 3, in the present embodiment, the inner-inclined root key type anchor cable further includes a position indicating mechanism, and the position indicating mechanism is used for indicating the position of the pressure-bearing mechanism 1 in the anchor hole 19.
In this embodiment, the position indicating mechanism is a guide cap 18, and the guide cap 18 is fixedly connected to the bottom of the pressure bearing mechanism 1. In construction, the anchor hole 19 is usually drilled at a deep position, and after the guide cap 18 is applied, blind detection of the pressure-bearing mechanism 1 can be avoided, so that the position of the pressure-bearing mechanism 1 can be determined.
In this embodiment, the tip of the anchor hole 19 has a first taper and the tip of the guide cap 18 has a second taper, the first taper corresponding to the second taper. In this case, the second taper of the guide cap 18 may be adapted to the first taper of the anchor eye 19, thereby accurately locating the bearing means 1 a.
In this embodiment, the position indicating mechanism may also be a first displacement sensor (not shown in the figure) for detecting displacement data of the pressure-bearing mechanism 1 in the anchor hole 19. In this case, the guide cap 18 does not need to be added to the pressure receiving mechanism 1, and the displacement of the pressure receiving mechanism 1 traveling downward from the opening portion of the anchor hole 19 can be detected by the first displacement sensor (not shown), so that the position of the pressure receiving mechanism 1 in the anchor hole 19 can be accurately positioned. The inner-inclination root key type anchor cable further comprises a first remote interface and terminal equipment, wherein the first remote interface is arranged on a first displacement sensor (not shown in the figure), the first displacement sensor (not shown in the figure) transmits detected displacement data to the terminal equipment through the first remote interface, and the terminal equipment is selected from a plurality of types of PC, a single chip microcomputer and a handheld terminal. In this case, the position of the first displacement sensor (not shown) in the anchor hole 19 can be known by the terminal device, and the application is more convenient.
The inner-inclined root key type anchor cable further comprises an alarm device, the alarm device is used for indicating whether the pressure bearing mechanism 1 is in place, and when the pressure bearing mechanism 1 is in place, the alarm device sends out an alarm signal. In this case, in the process of feeding the inner-inclined root-key anchor cable provided in this embodiment into the anchor hole 19, it is not necessary to monitor whether the pressure-bearing mechanism 1 is in place on site, but it is only possible to know whether the pressure-bearing mechanism 1 is in place by the alarm signal obtained from the alarm device.
Wherein the inner-inclined root key type anchor cable further comprises a second displacement sensor (not shown in the figure) for indicating displacement data of the grout outlet 17 of the grout pipe in the anchor hole 19. In this case, when introducing the grouting pipe into the anchor eye 19 through the through hole, a second displacement sensor (not shown in the figure) can be used to indicate the running position of the outlet 17 of the grouting pipe in the anchor eye 19, thereby facilitating the knowledge of the specific position of the outlet of the grouting pipe in the anchor eye 19. The inner-inclined root key type anchor cable further comprises a second remote interface and terminal equipment, the second remote interface is arranged on a second displacement sensor (not shown in the figure), the second displacement sensor (not shown in the figure) transmits detected displacement data to the terminal equipment through the second remote interface, and the terminal equipment is selected from a plurality of types of PC, a single chip microcomputer and a handheld terminal. In this case, the position of the second displacement sensor (not shown) in the anchor hole 19 can be known by the terminal device, and the application is more convenient.
The inner-inclined root key type anchor cable further comprises a grouting pipe collecting trolley (not shown in the figure), a grouting inlet of the grouting pipe is fixedly connected to the pipe collecting trolley (not shown in the figure), and the pipe collecting trolley (not shown in the figure) is used for collecting the grouting pipe in the grouting process into the anchor hole 19, so that a grouting outlet of the grouting pipe is lifted. In this case, the pipe collecting action of the grouting pipe can be completed through a pipe collecting trolley (not shown in the figure) without manual pipe collecting.
In this embodiment, the inner-inclined root-key type anchor cable further includes a speed setting device of the pipe collecting trolley (not shown in the figure), the speed setting device of the pipe collecting trolley (not shown in the figure) is used for setting the running speed of the pipe collecting trolley (not shown in the figure), and the operational formula of the running speed of the pipe collecting trolley (not shown in the figure) is as follows
Wherein v isVehicle with wheelsRunning speed of the take-up trolley (not shown in the figures), vInto-flow rate of slurry in the grouting pipe, SPipeCross-sectional area of the grouting pipe, SHole(s)The cross-sectional area of the anchoring openings 19. In this case, the running speed of the pipe collecting trolley (not shown in the figure) can be set according to the slurry flow rate in the grouting pipe, so that the slurry outlet of the grouting pipe is always positioned above the slurry surface of the grouting body. The inner-inclined root key type anchor cable further comprises a flow velocity measuring instrument (not shown in the figure), the flow velocity measuring instrument (not shown in the figure) is used for measuring real-time flow velocity data of slurry in the grouting pipe, and the speed setting device sets the running speed of the pipe collecting trolley (not shown in the figure) in real time according to the real-time flow velocity data.
In addition, when the slurry is output from a slurry conveying device (not shown in the figure), the flow rate of the slurry in the grouting pipe is set by the slurry conveying device (not shown in the figure), and the speed setting device sets the running speed of the pipe collecting trolley (not shown in the figure) according to the set flow rate of the slurry.
Example two
The embodiment of the utility model provides a method to anchor eye slip casting that two provide is based on the utility model provides an interior oblique root key formula anchor rope and realize, interior oblique root key formula anchor rope includes following step to the method of anchor eye slip casting:
sequentially assembling the inner-inclined root key type anchor cable pressure-bearing mechanism 1 to enable a slurry outlet 17 of a grouting pipe to be positioned at the bottom of the inner-inclined root key type anchor cable pressure-bearing mechanism 1;
injecting grouting bodies from the grouting pipes to the bottom of the pressure-bearing mechanism 1, gradually lifting the grout outlet 17 of the grouting pipes in the grouting process until the bottom of the pressure-bearing mechanism 1 is filled with the grouting bodies, and lifting the grout outlet 17 of the grouting pipes above the pressure-bearing mechanism 1;
continuously injecting grouting bodies from the grouting pipes to the upper part of the pressure-bearing mechanism, and gradually lifting the grout outlet 17 of the grouting pipe in the grouting process until the anchoring section of the anchor hole 19 is filled with the grout outlet of the grouting body grouting pipe and lifted to the free section of the anchor hole 19;
and the grouting pipe outlet is lifted continuously until the grouting pipe is removed from the anchor platform 20 and the anchor 22, and the grouting process into the anchor hole 19 is completed.
The embodiment of the utility model provides a method to anchor eye slip casting is used the utility model provides an interior oblique root key formula anchor rope, wherein, interior oblique root key formula anchor rope is because radially outwards be equipped with a plurality of root key 3 that can deepen in the 19 ground bodies of anchor eye on the pressure-bearing mechanism 1, the effective bearing area of pressure-bearing mechanism 1 actually surpasss the area of its upper surface, simultaneously, the ground body in root key 3 and the anchor eye 19 also has the interaction force, consequently, can promote anchor section B resistance, in addition, because the utility model provides an interior oblique root key formula anchor rope in use root key formula 3 to the slope of anchor eye mouth to, the value scope of root key 3 and horizontal direction contained angle is 20 and is less than α < 45, under this kind of circumstances, no matter the atress, whether can reduce or avoid root key 3 to drop from the key hole, and, after the atress, the integrated configuration that the combination between root key 3 and the supporting body 2 constitutes closely more effectively the utility model provides an interior oblique root key formula anchor effect that inclines.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (24)
1. An inner inclined root key type anchor cable is characterized by comprising an anchor platform, an anchorage device, a pressure bearing mechanism and a rib body,
the anchorage device is fixedly connected with the anchor platform to form an outer anchorage section,
after the pressure-bearing mechanism is connected with the rib body in series, the fixed end of the rib body is fixedly connected to the outer anchoring section, the hanging end of the rib body is used for hanging the pressure-bearing mechanism, the pressure-bearing mechanism is outwards provided with a plurality of root keys capable of extending into the anchor hole rock-soil body along the radial direction, the included angle between the root keys and the horizontal direction is between 20 degrees and α degrees and 45 degrees,
the center of the pressure-bearing mechanism is provided with a through hole,
a through hole is reserved on the outer anchoring section, the circle centers of the through hole and the through hole are positioned on the same straight line, the diameter of the through hole is the same as that of the through hole,
the through holes and the through holes are used for the grouting pipes to pass through,
and sliding pairs are formed among the grouting pipe, the pressure bearing mechanism and the outer anchoring section.
2. The internally-inclined root-key cable bolt of claim 1, wherein said bearing means comprises a bearing body, a root key, a conical plug,
the through hole is arranged at the center of the conical plug,
the center of the bearing body is provided with a taper hole,
the inner wall of the taper hole is taken as a starting point, key holes are radially arranged along the bearing body, the number of the key holes is the same as that of the root keys, the included angle between the key holes and the horizontal direction is between 20 degrees and α degrees and 45 degrees, so that after the root keys are arranged in the key holes in a penetrating mode, the included angle between the root keys and the horizontal direction is between 20 degrees and α degrees and 45 degrees,
a sliding pair is formed between the root key and the key hole,
the outer wall of the conical plug is matched with the conical hole,
the sum of the length of the root key and the radius of the conical plug at the corresponding position is larger than the radius of the anchor hole,
the length of the root key is less than the radius of the anchor hole;
when the conical plug is plugged into the conical hole, the head of the root key extends into the anchor hole rock-soil body.
3. The internally-inclined root key cable bolt of claim 2, wherein the top diameter of said conical plug is larger than the bottom diameter of said conical bore, and when said conical plug is inserted into said conical bore, there is an overlap between said conical plug and said key bore.
4. The internally-inclined root key type anchor cable according to claim 3, wherein the top diameter of the conical plug is larger than or equal to that of the conical hole, and when the conical plug is plugged into the conical hole, the conical plug and the key hole are overlapped.
5. The internally-inclined root key type anchor cable according to claim 4, wherein the height of the conical plug is more than or equal to that of the conical hole.
6. The internally-canted root-key cable bolt according to claim 2, wherein the root key head has a pointed end.
7. The internally-inclined root key anchor cable according to claim 2, wherein the tail portion of the root key is shaped to match the outer wall of the conical plug, so that the tail portion of the root key and the outer wall of the conical plug form a surface contact.
8. The internally-inclined root-key cable bolt of claim 2, wherein a stop is fixedly attached to the root key at a location where it contacts the outer wall of the carrier.
9. The internally-canted, root-key cable bolt of claim 8, wherein said spacer is made of a flexible material.
10. The internally-inclined root key type anchor cable according to claim 1, wherein a plurality of hanging holes are formed in the pressure-bearing mechanism, and the hanging ends of the rib bodies penetrate through the hanging holes.
11. The internally-inclined root key type anchor cable according to claim 10, further comprising an extrusion anchor, wherein a surplus portion is left at the bottom of the pressure-bearing mechanism on the rib body, the extrusion anchor is fixedly connected to the surplus portion, and the outer diameter of the extrusion anchor is larger than the diameter of the hanging hole.
12. The internally-canted, root-key anchor cable of claim 11, wherein the extruded anchor is fixedly attached to the remainder by welding or, alternatively, by snapping.
13. The internally-canted, root-key cable bolt according to claim 1, wherein the bottom of said anchor block is beveled.
14. The internally-canted, root-key cable bolt according to claim 1, wherein said bearing means are arranged in parallel.
15. The internally-inclined root-key type anchor cable according to claim 10, wherein the plurality of hanging holes are uniformly distributed on one circumference of the pressure-bearing mechanism.
16. The internally-inclined root-key cable bolt of claim 1, further comprising a position indicating mechanism for indicating the position of the bearing mechanism in the anchor eye.
17. The internally-canted, root-key cable bolt of claim 16, wherein said position indicating mechanism is a guide cap fixedly attached to the bottom of the lowermost pressure bearing mechanism.
18. The internally-canted root-key cable bolt of claim 17, wherein the tip of the anchor bore is tapered in a first taper and the tip of the pilot cap is tapered in a second taper, the first taper corresponding to the second taper.
19. The internally-inclined root-key cable bolt of claim 16, wherein the position indicating means is a first displacement sensor for sensing displacement data of the bearing means in the anchor eye.
20. The internally-inclined root-key cable bolt of claim 19, further comprising a first remote interface, a terminal device, wherein the first remote interface is disposed on the first displacement sensor, the first displacement sensor transmits the detected displacement data to the terminal device through the first remote interface, and the terminal device is selected from a PC, a single chip microcomputer, and a handheld terminal.
21. The internally-inclined root-key type anchor cable according to claim 20, further comprising an alarm device for indicating whether the pressure-bearing mechanism is in place, wherein when the pressure-bearing mechanism is in place, the alarm device sends out an alarm signal.
22. The internally-inclined root-key anchor cable of claim 1, further comprising a second displacement sensor for indicating displacement data of the grout outlet of the grout pipe in the anchor bore.
23. The internally-inclined root-key cable bolt of claim 22, further comprising a second remote interface, a terminal device, wherein the second remote interface is disposed on the second displacement sensor, the second displacement sensor transmits the detected displacement data to the terminal device through the second remote interface, and the terminal device is selected from a PC, a single chip microcomputer, and a handheld terminal.
24. The internally-inclined root key type anchor cable according to claim 1, further comprising a grouting pipe retracting trolley, wherein the grouting pipe inlet is fixedly connected to the retracting trolley, and the retracting trolley is used for retracting the grouting pipe during grouting into the anchor hole, so that the grouting pipe outlet is lifted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822268830.9U CN210288373U (en) | 2018-12-29 | 2018-12-29 | Internal inclined root key type anchor cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822268830.9U CN210288373U (en) | 2018-12-29 | 2018-12-29 | Internal inclined root key type anchor cable |
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| Publication Number | Publication Date |
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| CN210288373U true CN210288373U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201822268830.9U Withdrawn - After Issue CN210288373U (en) | 2018-12-29 | 2018-12-29 | Internal inclined root key type anchor cable |
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| CN (1) | CN210288373U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158588A (en) * | 2018-12-29 | 2019-08-23 | 中国科学院武汉岩土力学研究所 | Tilted keyed anchor cable, to the method for anchor hole slip casting |
| CN113089505A (en) * | 2021-04-26 | 2021-07-09 | 张金泉 | Bridgehead grouting device for highway bridge engineering |
-
2018
- 2018-12-29 CN CN201822268830.9U patent/CN210288373U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158588A (en) * | 2018-12-29 | 2019-08-23 | 中国科学院武汉岩土力学研究所 | Tilted keyed anchor cable, to the method for anchor hole slip casting |
| CN110158588B (en) * | 2018-12-29 | 2024-05-03 | 中国科学院武汉岩土力学研究所 | Internal inclined root key type anchor cable and grouting method for anchor holes |
| CN113089505A (en) * | 2021-04-26 | 2021-07-09 | 张金泉 | Bridgehead grouting device for highway bridge engineering |
| CN113089505B (en) * | 2021-04-26 | 2022-05-20 | 张金泉 | Bridgehead grouting device for highway bridge engineering |
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