CN213571990U - Anti-skid combined special-shaped pile - Google Patents
Anti-skid combined special-shaped pile Download PDFInfo
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- CN213571990U CN213571990U CN202022462283.5U CN202022462283U CN213571990U CN 213571990 U CN213571990 U CN 213571990U CN 202022462283 U CN202022462283 U CN 202022462283U CN 213571990 U CN213571990 U CN 213571990U
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Abstract
The utility model discloses an anti-skidding combination dysmorphism stake, including king pile, supplementary stake, anchor rope and guan liang, wherein, the king pile is vertical to be stretched into in the basement rock, the king pile top with supplementary stake top is passed through guan liang is connected, the king pile with be provided with the contained angle between the supplementary stake, be provided with the anchor rope in the supplementary stake, wear out the one end of anchor rope the lower terminal surface of supplementary stake for stretch into in the basement rock. The utility model discloses an antiskid combination dysmorphism stake is guaranteeing under the prerequisite of cling compound, has reduced the construction volume of cling compound stake, reduces construction cost, improves the efficiency of construction.
Description
Technical Field
The utility model belongs to the geotechnical engineering technique, concretely relates to antiskid combination dysmorphism stake.
Background
Under certain geological terrain conditions, due to the change of external conditions, various natural or artificial factors influence and destroy the mechanical balance of rock-soil bodies, so that the unfavorable geological phenomenon that unstable rock-soil bodies on a hillside intermittently or continuously slide downwards along a certain weak surface under the action of gravity is called landslide. At present, landslides are mainly treated by means of driving anti-slide piles. The anti-slide pile pushes the slope body borne by the upper part to the lateral soil body or rock body at the lower part of the pile through the pile body, and bears the downward sliding force of the side slope by the lateral resistance at the lower part of the pile, so that the side slope is kept balanced or stable. The common anti-slide pile has a round, square, rectangular, I-shaped and other cross-sectional shapes. The anti-slide piles are mainly divided into single-row piles and double-row piles. When the anti-skid capability of the single-row piles does not meet the requirement, double-row piles (portal piles) are required to be arranged. But portal stake cost is higher, and when the landslide body is great and the soil property is relatively poor, need a plurality of friction piles, not only the cost improves, even use a plurality of friction piles still to have the bearing capacity poor moreover, the not high problem of durability.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the prior art, the utility model aims at providing an anti-skidding combination dysmorphism stake will have the king pile and the auxiliary pile of certain angle to couple together through hat roof beam, constitute the anti-skidding body jointly with the anchor rope, effectually prevent the side slope collapse of bulky for the anti-skidding stake is under the prerequisite of guaranteeing the cling force, has reduced the construction volume of anti-skidding stake, reduces construction cost, improves the efficiency of construction.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an anti-skidding combination dysmorphism stake, includes king pile, supplementary stake, anchor rope and guan liang, wherein, the king pile is vertical to be stretched into in the basement rock, the king pile top with supplementary stake top is passed through guan liang is connected, the king pile with be provided with the contained angle between the supplementary stake, be provided with the anchor rope in the supplementary stake, the one end of anchor rope is worn out the lower terminal surface of supplementary stake for stretch into in the basement rock.
Further, the main pile and the auxiliary pile are cast-in-place concrete piles.
Further, the main piles and the auxiliary piles are arranged in a herringbone mode.
Furthermore, longitudinal ribs are reserved on the pile top of the main pile and the pile top of the auxiliary pile, and all the longitudinal ribs are anchored into the crown beam.
Further, the included angle between the main pile and the auxiliary pile is 45-90 degrees.
Furthermore, a hole is formed in the pile body of the auxiliary pile, and the upper portion of the anchor cable is connected in the hole of the auxiliary pile through an anchoring device.
Furthermore, the anchoring device consists of an anchorage device and a steel base plate, and the steel base plate is provided with a through hole for the upper end of the anchor cable to pass through.
Furthermore, the anchor cable is arranged on one side, under tension, of the auxiliary pile body, the lower end of the anchor cable penetrates out of the hole of the auxiliary pile body and is anchored in the bedrock, and the anchor cable is used for providing tension for the auxiliary pile when the auxiliary pile is under the action of impact force.
Furthermore, the number of the anchor cables is 2-4, and the diameter of each anchor cable is 0.15-0.2 m; each anchor cable consists of 4-8 steel strands, expansion rings are sleeved on the anchor cables at intervals, through holes are arranged on the expansion rings at intervals, the steel strands penetrate through the through holes, and the through holes are used for keeping a certain distance between the steel strands.
Furthermore, the metal corrugated pipe is sleeved outside the anchor cable, cement mortar is poured into the metal corrugated pipe, and the cement mortar is used for fixing the metal corrugated pipe and the anchor cable into a whole.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
the utility model discloses an antiskid is organized special-shaped pile and is linked together king pile and supplementary stake better through hat roof beam, anchor rope and king pile in supplementary stake and the supplementary stake, hat roof beam constitutes antiskid combination special-shaped pile jointly, it is very big at the landslide body, and under the relatively poor condition of soil property, supplementary stake and anchor rope are at first undertaken a part gliding force, supplementary stake is again with another part gliding force through hat roof beam transmission for the king pile, the king pile is owing to go deep into the basement rock, can undertake most anti-skidding force, and the anchor rope goes deep into the basement rock, can provide great anchor power, make the landslide body keep relatively stable.
The utility model discloses the anti-skidding group dysmorphism stake that obtains has optimized on portal friction pile's basis, simplifies the shape of friction pile into "people" font stake, has optimized the atress performance of traditional friction pile, improves the anti-skidding ability of friction pile, can effectively strengthen the landslide body of soil quality difference, prevents that the landslide body from taking place large tracts of land landslide, has obviously improved anti-skidding effect; and "people" font antiskid combination dysmorphism stake is lower than portal stake cost, adopts the utility model discloses an antiskid combination dysmorphism stake can reach the purpose that reduces engineering cost.
Further, the utility model discloses in going into the hat roof beam with the whole anchors of the muscle of indulging that king pile and supplementary stake were reserved, improve connection rigidity and intensity, guarantee the connection reliability of hat roof beam.
Further, traditional friction pile degree of depth is too big, and stability is not enough, in order to solve the problem in this aspect, the utility model discloses an anchor rope that supplementary stake was drawn the side has strengthened friction pile's bending resistance effectively, has also reduced friction pile excavation degree of depth simultaneously, utilizes the combination of king pile and supplementary stake, has improved friction pile's stability.
Further, the utility model discloses there is corrugated metal pipe at the anchor rope overcoat, and corrugated metal pipe can prevent that grout concrete, the landslide body in the auxiliary pile body from adhering the stretch-draw that influences the anchor rope with the anchor rope outer wall.
Drawings
Fig. 1 is a schematic view of an anti-skid combined special-shaped pile obtained by the utility model;
FIG. 2 is a cross-sectional view taken along line a-a of FIG. 1;
FIG. 3 is a detailed view of the cable arrangement;
FIG. 4 is a cross-sectional view taken along line b-b of FIG. 1;
fig. 5 is a schematic view of the present invention in use.
In the drawings: 1 is a main pile; 2 is an auxiliary pile; 3 is an anchor cable; 4 is a crown beam; 5 is a longitudinal bar; 6 is an anchoring device; 7 is a steel backing plate; 8 is an expanding ring; 9 is a metal corrugated pipe; 10 is cement mortar; 11 is bedrock; 12 is a landslide body
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 and 5, the utility model provides an anti-skidding combined special-shaped pile, including king pile 1, auxiliary pile 2, anchor rope 3 and crown beam 4, wherein, king pile 1 and auxiliary pile 2 are cast-in-place concrete piles, can adopt manual work or machinery to drill on the slope during the preparation, and cast-in-place concrete after placing the steel reinforcement cage in the hole after the hole is drilled, wait for the concrete solidification and obtain king pile 1 or auxiliary pile 2; the main pile 1 is vertical to the ground and extends into the bedrock 11, the upper section of the main pile 1 is connected with the upper end of the auxiliary pile 2 through a crown beam 4, and the main pile 1 and the auxiliary pile 2 are in a herringbone shape;
preferably, when the side slope is drilled, proper drilling equipment can be selected according to the type of the side slope soil, and the drilling equipment can be one or more of rotary drill, impact drill and percussion-grab drill.
Fig. 2 is a cross-sectional view of a-a in fig. 1, according to fig. 1 and 2, longitudinal bars 5 are reserved on the pile tops of a main pile 1 and an auxiliary pile 2, the longitudinal bars 5 are all anchored into a crown beam 4, when the concrete strength levels of the main pile 1 and the auxiliary pile 2 meet design requirements, construction is performed to manufacture the crown beam 4, the longitudinal bars reserved on the main pile 1 and the auxiliary pile 2 are all anchored into the crown beam 4, the connection rigidity and strength of the main pile 1 and the auxiliary pile 2 with the crown beam 4 can be improved, and the connection reliability of the crown beam 4 is ensured.
In a preferred embodiment of the present invention, the angle of the herringbone between the main pile 1 and the auxiliary pile 2 is 45 ° to 90 °.
As shown in fig. 1 and 3, a hole is formed in the pile body of the auxiliary pile 2, a plurality of anchor cables 3 are connected to the lower end of the pile body of the auxiliary pile 2, the upper parts of the anchor cables 3 are connected in the hole of the auxiliary pile 2 through an anchoring device 6, the lower parts of the anchor cables 3 penetrate through the auxiliary pile 2 and are anchored in a bedrock 11, and the number of the anchor cables 3 is set according to the actual situation; the anchoring device 6 consists of an anchorage device and a steel backing plate 7, a through hole for the upper end of the anchor cable 3 to pass through is formed in the steel backing plate 7, the anchorage device and the steel backing plate 7 are directly placed on the top of the auxiliary pile, and the anchor cable penetrates through the through hole in the steel backing plate and is anchored by the anchorage device.
As shown in fig. 3 and 4, fig. 4 is a cross-sectional view of b-b in fig. 1, in a preferred embodiment of the present invention, the number of anchor cables 3 is 2, the diameter of each anchor cable 3 is 0.15-0.2 m, each anchor cable 3 is composed of 4-8 steel strands, the anchor cable 3 is sleeved with an expansion ring 8 at intervals, through holes are arranged on the expansion ring 8 at intervals, the steel strands constituting one anchor cable 3 respectively pass through the through holes of the expansion ring, and the through holes are used for keeping a certain distance between the steel strands; an arrow indicates the stress direction of the auxiliary pile 2, the anchor cable 3 is positioned on one side of the tensile side of the pile body of the auxiliary pile, and vertical prestress is applied to the pile body of the auxiliary pile 2 through the anchor cable 3, so that the bending resistance of the anti-slide pile is effectively enhanced; the pile body of the auxiliary pile 2 is subjected to vertical prestressed anchor cable pore-forming at the tension side, and the anchor cable 3 is vertically placed to form a vertical anchor cable; the spacing distance between the expansion rings 8 is set according to the length of the anchor cable 3, so that the strands of steel strands are not bonded to each other, and the spacing between the through holes on the expansion rings 8 is determined according to the type of the expansion rings 8.
Preferably, the metal corrugated pipe 9 is sleeved outside the anchor cable 1, cement mortar 10 is further poured into the metal corrugated pipe 9, the cement mortar 10 is used for fixing the metal corrugated pipe 9 and the anchor cable 3 into a whole, and the metal corrugated pipe 9 can prevent the grouting concrete and the landslide body in the pile body of the auxiliary pile 2 from being adhered to the outer wall of the anchor cable 3 to influence the tension of the anchor cable 3.
The utility model provides a pair of application method of antiskid combination dysmorphism stake, concrete step is:
firstly, excavating a pile well of an auxiliary pile 2 by adopting a manual or mechanical hole forming method, supporting while excavating until the pile well is excavated into a bedrock 11, anchoring the lower end of an anchor cable 3 in the bedrock 11, and forming a vertical anchor cable hole in the inner side of a pile hole of the auxiliary pile 2;
secondly, manufacturing and installing the anchor cable 3, and fixing the anchor cable 3 and the metal corrugated pipe 9 to prevent the position of the anchor cable 3 from deviating;
step three, excavating the pile well of the main pile 1 while supporting, placing a prefabricated reinforcement cage into the pile wells of the main pile 1 and the auxiliary pile 2 after excavating, and pouring concrete;
step four, after the pile body strength of the main pile 1 and the auxiliary pile 2 is increased to 70% of the design strength, tensioning and locking the anchor cable 3; prestressing force is applied to the installed anchor cable 3, the anchor cable 3 is anchored by an anchorage device, and grouting is carried out in the metal corrugated pipe.
And fifthly, chiseling the pile top, wherein the longitudinal ribs 5 reserved on the pile tops of the main pile 1 and the auxiliary pile 2 and the anchor cables 3 in the auxiliary pile 2 cannot be damaged during chiseling, correcting the longitudinal ribs 5 reserved on the pile tops of the main pile 1 and the auxiliary pile 2 when the design bottom surface of the crown beam 4 is manually chiseled, ensuring that the positions of the longitudinal ribs 5 are correct, bending the longitudinal ribs 5 reserved on the pile tops of the auxiliary piles 2 to be parallel to the longitudinal ribs 5 reserved on the pile tops of the main pile 1, cleaning the pile tops, measuring and paying off, detecting and manufacturing the longitudinal ribs 5, binding the longitudinal ribs 5 after the longitudinal ribs 5 are manufactured, erecting a template, pouring concrete finally, obtaining the crown beam 4, and removing the template for maintenance after the pile body of the crown beam reaches a certain strength.
Claims (10)
1. The utility model provides an anti-skidding combination dysmorphism stake, its characterized in that includes king pile (1), supplementary stake (2), anchor rope (3) and guan liang (4), wherein, king pile (1) is vertical to be stretched into in basement rock (11), king pile (1) top with supplementary stake (2) top is passed through guanliang (4) are connected, king pile (1) with be provided with the contained angle between supplementary stake (2), be provided with anchor rope (3) in supplementary stake (2), the one end of anchor rope (3) is worn out the lower terminal surface of supplementary stake (2) for stretch into in basement rock (11).
2. A skid-resistant combined profiled pile as claimed in claim 1, characterized in that said main pile (1) and said auxiliary pile (2) are cast-in-place concrete piles.
3. A skid-resistant combined profiled pile as claimed in claim 2, characterized in that said main pile (1) and said auxiliary pile (2) are arranged in a herringbone pattern.
4. A skid-resistant combined special-shaped pile according to claim 1, characterized in that longitudinal ribs (5) are reserved on the pile top of the main pile (1) and the pile top of the auxiliary pile (2), and the longitudinal ribs (5) are all anchored in the crown beam (4).
5. A skid-resistant combined profiled pile as claimed in claim 1, characterized in that the included angle between said main pile (1) and said auxiliary pile (2) is 45 ° to 90 °.
6. The anti-skid combined special-shaped pile as claimed in claim 1, wherein a hole is formed in the inner part of the pile body of the auxiliary pile (2), and the upper part of the anchor cable (3) is connected in the hole of the auxiliary pile (2) through an anchoring device (6).
7. The anti-skid combined special-shaped pile as claimed in claim 6, wherein the anchoring device (6) is composed of an anchorage device and a steel backing plate (7), a through hole for allowing the upper end of the anchor cable (3) to pass through is formed in the steel backing plate (7), and the anchor cable (3) penetrates through the through hole to be anchored with the anchorage device.
8. An anti-skid combined special-shaped pile according to claim 6, characterized in that the anchor cable (3) is arranged on the tension side of the pile body of the auxiliary pile (2), the lower end of the anchor cable (3) penetrates out of the hole of the pile body of the auxiliary pile (2) and is anchored in the bedrock (11), and the anchor cable (3) is used for providing tension for the auxiliary pile (2) when the auxiliary pile (2) is under the impact force.
9. The anti-skid combined special-shaped pile as claimed in claim 1, wherein the number of the anchor cables (3) is 2-4, and the diameter of each anchor cable (3) is 0.15-0.2 m; each anchor cable (3) comprises 4 ~ 8 steel strands, the interval cover has expansion ring (8) on anchor cable (3), interval arrangement has the through-hole on expansion ring (8), the steel strand is followed pass in the through-hole, the through-hole is used for making and keeps certain interval between each strand of steel strand.
10. The anti-slip combined special-shaped pile as claimed in claim 1, wherein a metal corrugated pipe (9) is further sleeved outside the anchor cable (3), cement mortar (10) is poured into the metal corrugated pipe (9), and the cement mortar (10) is used for fixing the metal corrugated pipe (9) and the anchor cable (3) into a whole.
Priority Applications (1)
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CN202022462283.5U CN213571990U (en) | 2020-10-29 | 2020-10-29 | Anti-skid combined special-shaped pile |
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CN202022462283.5U CN213571990U (en) | 2020-10-29 | 2020-10-29 | Anti-skid combined special-shaped pile |
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