CN213709511U - Support pile internal semi-invasive prestressed anchor cable structure convenient for cutting off of rotary drilling rig - Google Patents
Support pile internal semi-invasive prestressed anchor cable structure convenient for cutting off of rotary drilling rig Download PDFInfo
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- CN213709511U CN213709511U CN202021569711.8U CN202021569711U CN213709511U CN 213709511 U CN213709511 U CN 213709511U CN 202021569711 U CN202021569711 U CN 202021569711U CN 213709511 U CN213709511 U CN 213709511U
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Abstract
The utility model relates to the technical field of foundation pit supporting pile construction, and discloses a supporting pile internal semi-invasive prestressed anchor cable structure convenient for cutting off by a rotary drilling rig, which comprises a plurality of supporting piles which are longitudinally arranged side by side and anchor cables of which two ends are respectively embedded into two supporting piles; the supporting piles comprise foundation pit supporting piles, the foundation pit supporting piles are provided with fastening sections, the fastening sections are formed by pouring C30 concrete, one ends of the anchor cables are embedded in the fastening sections, and one ends of the anchor cables do not penetrate through the fastening sections; the anchor cable embedded in the fastening section is drilled and cut by the rotary drilling rig, the fastening section can firmly fix the anchor cable, and the anchor cable and the concrete are directly cut together when the rotary drilling rig cuts, so that the rotary slipping of the rotary drilling rig during drilling is avoided, the smooth cutting of the anchor cable is guaranteed, the drilling is fast, the working procedures are simple and easy to operate, the processing time is short, and the cost is low.
Description
Technical Field
The utility model relates to a technical field of foundation ditch fender pile construction, in particular to partly invade prestressed anchorage cable structure in the fender pile convenient to dig the rig excision soon.
Background
The deep foundation pit support adopts a support pile and a prestressed anchor cable support, and is one of the common support forms at present; after the basement is backfilled, the prestressed anchor cables of the enclosure structure lose the use function, but the prestressed anchor cables of the enclosure structure invade the underground space outside the original foundation pit to influence the supporting and excavating construction of surrounding buildings; when the newly-built basement supporting structure of periphery is under construction, the prestressed anchorage cable of foundation ditch under construction will cause great hindrance to processes construction such as fender pile pore-forming, lay steel reinforcement cage, increases the construction degree of difficulty and cost to a certain extent, has also increased construction safety risk.
At present, under the condition that a foundation pit for constructing a prestressed anchor cable is backfilled, a mode of pulling out the prestressed anchor cable intruding into a newly-built foundation pit is mainly provided with the following two methods, firstly, manual hole digging piles are dug, downward construction is carried out section by section through pile holes, and the intruding anchor cables are cut off and removed row by row, so that the method is long in time consumption, high in cost and large in pile digging safety risk, and cannot be implemented due to influences of strata, depth and surrounding environmental conditions; secondly, the large-torque rotary drilling rig with the torque of 360KN.m or more is adopted, the invaded prestressed anchor cable is directly and effectively wound in the rotary drilling process, the instantaneous strong tension overcomes the locking force of the anchor cable and is loosened and broken by the locking force under the strong tensioning state of the rotary drilling, and the rotary drilling rig lifts the anchor cable out of the ground to complete the removal of the anchor cable.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a partly invade prestressed anchorage cable structure in the fender pile convenient to dig the rig excision soon aims at solving prior art, when using the anchor rope of digging the rig cutting partly invasion fender pile soon, the problem of the phenomenon of skidding easily takes place for the drill bit in the drilling process.
The utility model is realized in such a way that the support pile internal semi-invasive prestressed anchor cable structure convenient for the cutting off of the rotary drilling rig comprises a plurality of support piles which are longitudinally arranged side by side and anchor cables of which two ends are respectively embedded into the two support piles; the supporting piles comprise foundation pit supporting piles, the foundation pit supporting piles are provided with fastening sections, the fastening sections are formed by pouring C30 concrete, one end of each anchor cable is embedded into the fastening sections, and one end of each anchor cable does not penetrate through the fastening sections.
Further, one end of the anchor cable is provided with an embedding section embedded into the fastening section, and the length of the embedding section is not less than 0.2 m.
Further, the height of the fastening section is not less than 2 m.
Furthermore, the heights of the fastening sections positioned at the upper side and the lower side of the embedding section are respectively greater than or equal to 1 m.
Furthermore, the anchor cable is obliquely embedded into the foundation pit supporting pile.
Further, the anchor cable is horizontally embedded into the foundation pit supporting pile.
Further, a sleeve is sleeved on the supporting pile; the kit comprises a first attaching plate and a second attaching plate, one end of the first attaching plate is hinged with one end of the second attaching plate, and the other end of the first attaching plate and the other end of the second attaching plate are detachably fixed through a fixing part; the lower end of the first attaching plate or the lower end of the second attaching plate or the lower ends of the first attaching plate and the second attaching plate are upwards sunken to form a notch, and the width of the notch is consistent with the diameter of the anchor cable; the external member is sleeved on the supporting pile, and the anchor cable is embedded into the gap.
Furthermore, a plurality of convex strips are formed on the inner wall of the notch in a protruding mode towards the middle of the notch, the convex strips extend along the direction from the outer wall of the sleeve to the center, and the convex strips are abutted to the outer surface of the anchor cable.
Further, from top to bottom, the convex strip is in a triangular shape with a large top and a small bottom.
Furthermore, the fixing part comprises a threaded rod and a fixing sleeve, the other end of the first attaching plate and the other end of the second attaching plate are both provided with the threaded rod, one end of the threaded rod is fixed with the other end of the first attaching plate or the other end of the second attaching plate, and the other end of the threaded rod extends along the direction far away from the other end of the first attaching plate or the other end of the second attaching plate; the fixing sleeve is respectively sleeved on the two threaded rods, and the first attaching plate and the second attaching plate are fixedly sleeved on the supporting pile.
Compared with the prior art, the utility model provides a be convenient for dig partly invade prestressed anchorage cable structure in fender pile of rig excision soon, creep into the anchor rope of cutting embedding in the fastening section through digging the rig soon, the fastening section can firmly fix the anchor rope, directly together cuts with anchor rope and concrete when digging the rig cutting soon to avoid digging the rig soon and spin the rig when creeping into and skid, guarantee to the smooth cutting of anchor rope, and creep into swiftly, the simple easy operation of process, processing time is short, the expense is low.
Drawings
Fig. 1 is a schematic plan view of an anchor cable and a foundation pit support pile provided in an embodiment of the present invention;
fig. 2 is a perspective view of a kit according to an embodiment of the present invention;
fig. 3 is an enlarged schematic view of a point a in fig. 2 according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
Referring to fig. 1-3, preferred embodiments of the present invention are provided.
The prestressed anchor cable structure in a fender pile convenient to it is amputated soon to dig rig excision that this embodiment provides, a prestressed anchor cable structure in using the rig excision that digs soon to excavate the stake, including a plurality of vertical fender piles 1 that arrange side by side and both ends embedding wherein two anchor ropes 4 of fender pile 1 respectively, a plurality of fender piles 1 vertically arrange side by side, anchor rope 4 inclines to arrange or places along the transverse direction, and the one end embedding of anchor rope 4 is in treating the fender pile 1 of pore-forming, this treats pore-forming fender pile 1 and is foundation ditch fender pile 2, foundation ditch fender pile 2 has fastening section 3, the one end embedding of anchor rope 4 is inside fastening section 3, and the one end of anchor rope 4 does not run through fastening section 3, fastening section 3 is poured by C30 underwater concrete, and early strength agent has been added in the concrete, so that the maintenance time of concrete is shortened.
Before cutting, a high-torque rotary drilling rig is required to be prepared to drill the foundation pit supporting pile 2, when the position of an anchor cable is close to, slow drilling is adopted, and a drill bit can implement disturbance damage to a hole wall stratum to a certain extent when encountering the anchor cable 4, so that a high-quality slurry is required to be adopted to protect the wall, and the hole wall is placed to collapse; and after the anchor cable 4 is drilled, the drill rod is lifted out and poured with underwater concrete to form the fastening section 3.
The semi-invasive prestressed anchor cable structure in the supporting pile convenient to cut off by the rotary drilling rig comprises an anchor cable 4 embedded in a fastening section 3 by drilling and cutting through the rotary drilling rig, the fastening section 3 can firmly fix the anchor cable 4, and the anchor cable 4 and concrete are directly cut together when the rotary drilling rig cuts, so that rotary slipping is avoided when the rotary drilling rig drills, smooth cutting of the anchor cable 4 is guaranteed, the drilling is fast, the process is simple and easy to operate, the processing time is short, and the cost is low.
In this embodiment, the one end of anchor rope 4 has the embedding section, and the embedding section embedding is in fastening section 3, and the length of embedding section is not less than 0.2m, and the height of fastening section 3 is not less than 2m, and the length of the fastening section 3 that is located the upper and lower both sides of embedding section is also more than or equal to 1m respectively, just fixes anchor rope 4 in the inside of fastening section 3, when using rotary drilling rig to dig soon, adopts the coring to creep into to directly take out the anchor rope 4 that cuts off together with the concrete, accomplish the cutting of anchor rope 4.
The supporting pile 1 is sleeved with a sleeve member 6; the external member 6 comprises a first attaching plate 5 and a second attaching plate 7, one end of the first attaching plate 5 is hinged with one end of the second attaching plate 7, and the other end of the first attaching plate 5 and the other end of the second attaching plate 7 are detachably fixed through a fixing part 9; can make first attaching plate 5 and the second attaching plate 7 that is different shapes according to a fender pile 1's shape, for example to being columniform fender pile 1, then set up circular-arc first attaching plate 5 and second attaching plate 7, set up assorted external member 6 according to the shape, the external member 6 of being convenient for is fixed with a fender pile 1's cooperation.
The lower end of the first attaching plate 5 or the lower end of the second attaching plate 7 or the lower ends of the first attaching plate 5 and the second attaching plate 7 are recessed upwards to form a notch 8, and the width of the notch 8 is consistent with the diameter of the anchor cable 4; the external member 6 is sleeved on the supporting pile 1, the anchor cable 4 is embedded into the notch 8, a plurality of convex strips are formed on the inner wall of the notch 8 in a protruding mode towards the middle of the notch 8, the convex strips extend in the direction from the outer wall of the external member 6 to the center and are in a triangular shape from top to bottom, the convex strips abut against the outer surface of the anchor cable 4 under the action of gravity of the external member 6, the fixing portion 9 comprises a threaded rod 10 and a fixing sleeve 11, threaded rods 10 are arranged at the other end of the first attaching plate 5 and the other end of the second attaching plate 7, one end of each threaded rod 10 is fixed with the other end of the first attaching plate 5 or the other end of the second attaching plate 7, and the other end of each threaded rod 10 extends in the direction away from the other end of the first attaching plate 5 or the other; the fixing sleeves 11 are respectively sleeved on the two threaded rods 10, and the fixing sleeves 11 of the first attaching plate 5 and the second attaching plate 7 are arranged on the support pile 1; then fix external member 6 and fender pile 1 through fixed part 9, like this, further fix anchor rope 4, ensure when creeping into, anchor rope 4 removes, avoids digging the rig soon and skid, and external member 6 can effectively reduce the disturbance and the destruction to the pore wall when creeping into anchor rope 4, and external member 6 can effectively protect the pore wall, avoids the pore wall to collapse.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The semi-invasive prestressed anchor cable structure in the supporting pile convenient for cutting off by the rotary drilling rig is characterized by comprising a plurality of supporting piles which are longitudinally arranged side by side and anchor cables of which two ends are respectively embedded into the two supporting piles; the supporting piles comprise foundation pit supporting piles, the foundation pit supporting piles are provided with fastening sections, the fastening sections are formed by pouring C30 concrete, one end of each anchor cable is embedded into the fastening sections, and one end of each anchor cable does not penetrate through the fastening sections.
2. The structure of the semi-invasive prestressed anchor cable in a support pile for facilitating the cutting off of a rotary drilling rig as claimed in claim 1, wherein one end of the anchor cable has an embedded section embedded in the fastening section, and the length of the embedded section is not less than 0.2 m.
3. The structure of the semi-invasive prestressed anchor cable in a support pile for facilitating the cutting off of a rotary drilling rig according to claim 1, wherein the height of the fastening section is not less than 2 m.
4. The structure of the semi-invasive prestressed anchor cable in a fender pile convenient for cutting off by a rotary drilling rig according to claim 2, wherein the heights of the fastening sections positioned at the upper and lower sides of the embedded section are respectively greater than or equal to 1 m.
5. The structure of the semi-invasive prestressed anchor cable in the supporting pile for facilitating the removal of the rotary drilling rig as claimed in any one of claims 1 to 4, wherein the anchor cable is obliquely embedded in the foundation pit supporting pile.
6. The structure of the semi-invasive prestressed anchor cable in the supporting pile for facilitating the cutting off of the rotary drilling rig as claimed in any one of claims 1 to 4, wherein the anchor cable is horizontally embedded in the foundation pit supporting pile.
7. The structure of the semi-invasive prestressed anchor cable in the supporting pile convenient for the cutting off of the rotary drilling rig according to any one of claims 1 to 4, wherein a sleeve is sleeved on the supporting pile; the kit comprises a first attaching plate and a second attaching plate, one end of the first attaching plate is hinged with one end of the second attaching plate, and the other end of the first attaching plate and the other end of the second attaching plate are detachably fixed through a fixing part; the lower end of the first attaching plate or the lower end of the second attaching plate or the lower ends of the first attaching plate and the second attaching plate are upwards sunken to form a notch, and the width of the notch is consistent with the diameter of the anchor cable; the external member is sleeved on the supporting pile, and the anchor cable is embedded into the gap.
8. The structure of the semi-invasive prestressed anchor cable in a fender pile convenient for cutting off by a rotary drilling rig as claimed in claim 7, wherein a plurality of convex strips are formed on the inner wall of the notch in a protruding manner towards the middle of the notch, the convex strips extend along the direction from the outer wall of the sleeve to the center, and the convex strips abut against the outer surface of the anchor cable.
9. The structure of the semi-invasive prestressed anchor cable in a fender pile for facilitating cutting off of a rotary drilling rig according to claim 8, wherein the convex strip is in a triangular shape with a large top and a small bottom from top to bottom.
10. The structure of the semi-invasive prestressed anchor cable in a support pile convenient for cutting off by a rotary drilling rig according to claim 7, wherein the fixing portion comprises a threaded rod and a fixing sleeve, the other end of the first attachment plate and the other end of the second attachment plate are both provided with a threaded rod, one end of the threaded rod is fixed to the other end of the first attachment plate or the other end of the second attachment plate, and the other end of the threaded rod extends in a direction away from the other end of the first attachment plate or the other end of the second attachment plate; the fixing sleeve is respectively sleeved on the two threaded rods, and the first attaching plate and the second attaching plate are fixedly sleeved on the supporting pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021569711.8U CN213709511U (en) | 2020-07-30 | 2020-07-30 | Support pile internal semi-invasive prestressed anchor cable structure convenient for cutting off of rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021569711.8U CN213709511U (en) | 2020-07-30 | 2020-07-30 | Support pile internal semi-invasive prestressed anchor cable structure convenient for cutting off of rotary drilling rig |
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| Publication Number | Publication Date |
|---|---|
| CN213709511U true CN213709511U (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021569711.8U Active CN213709511U (en) | 2020-07-30 | 2020-07-30 | Support pile internal semi-invasive prestressed anchor cable structure convenient for cutting off of rotary drilling rig |
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| Country | Link |
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| CN (1) | CN213709511U (en) |
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- 2020-07-30 CN CN202021569711.8U patent/CN213709511U/en active Active
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