CN109898509B - Use method of ultra-long anchor cable sliding groove - Google Patents
Use method of ultra-long anchor cable sliding groove Download PDFInfo
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- CN109898509B CN109898509B CN201910237411.5A CN201910237411A CN109898509B CN 109898509 B CN109898509 B CN 109898509B CN 201910237411 A CN201910237411 A CN 201910237411A CN 109898509 B CN109898509 B CN 109898509B
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- 238000010276 construction Methods 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 6
- 230000007306 turnover Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000004873 anchoring Methods 0.000 abstract description 2
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The use method of the overlength anchor cable chute comprises an end head cap and a chute section which are sequentially connected from front to back, wherein the chute section comprises a head section and at least one section of standard section, the front end part of the head section is connected with the back end part of the end head cap through a detachable connection structure, the chute sections are connected end to end in a long connection mode, and the head end part of the back chute section is detachably connected with the tail end part of the front chute section through a connection assembly. The invention particularly aims at the ultra-long anchor cable, adopts the connection among all parts of the sliding groove, has simple operation, rapid extension and convenient stacking, is an extension mode which is beneficial to cyclic utilization, ensures the designed anchoring length and the required pulling resistance of the ultra-long anchor cable, ensures the construction quality of the anchor cable, can be recycled, saves energy, protects the environment and has better economic benefit.
Description
Technical Field
The invention belongs to the building slope supporting engineering, in particular to a non-casing overlong anchor cable lowering chute.
Background
When supporting a building side slope, a structural form of anti-slide piles or lattice beams and anchor cables is generally adopted. Wherein in non-sleeve pipe construction, when building side slope anchor rope transferred, generally adopted the manual work to lift the anchor rope steel strand wires and directly insert in the anchor hole, but the anchor rope is longer, for example when length exceedes 30m, then easily appear following a great deal of problem:
firstly, because anchor rope steel strand wires are gentle, transfer the in-process at the manual work and hardly guarantee to become the straight line and insert the anchor eye, rub and collide both sides and upper portion pore wall many times, then lead to the pore wall earthwork constantly to collapse the landing. The anchor cable is transferred the degree of difficulty and is big more deeply in the anchor eye, and when the pore wall collapse was serious, the anchor cable often can't be transferred to the design degree of depth.
And secondly, when the hole wall is seriously collapsed, the anchor hole is reduced in diameter and even blocked, so that the grouting of the anchor hole is not full, the grouting section length of the anchor cable is not enough, and the pulling resistance of the anchor cable cannot meet the design requirement.
Disclosure of Invention
The invention aims to provide a using method of an ultra-long anchor cable sliding groove, which aims to solve the technical problems that when the existing non-casing construction is carried out, the ultra-long anchor cable is placed downwards, the anchor cable cannot be ensured to be inserted into an anchor hole in a straight line, and earthwork is continuously collapsed and slides due to multiple times of friction and collision of two side and upper hole walls; the technical problems that grouting of an anchor hole is not full, the grouting section length of an anchor cable is not enough, and the pulling resistance of the anchor cable cannot meet the design requirements due to the fact that hole wall collapse is serious and the anchor hole is reduced and blocked are solved.
In order to achieve the purpose, the invention adopts the following technical scheme:
an ultra-long anchor cable chute comprises a strip-shaped chute body, wherein the chute body comprises an end head cap and a chute section which are sequentially connected from front to back, the chute section comprises a first section and at least one standard section,
the end cap is a hollow cylinder, the end surface of the front half part of the end cap is a closed cambered surface, the top end of the cambered surface is a tip, the end surface of the rear end part of the end cap is open,
the front end part of the first section is connected with the rear end part of the end cap through a detachable connecting structure,
the detachable connecting structure comprises two grooves arranged along the length direction at the lower side of the front end part of the first section, and two convex ribs matched with the grooves at the positions corresponding to the grooves on the inner wall of the rear half part of the end cap, wherein the lower side of the front end part of the first section extends into the cavity of the end cap near the inner wall of the end cap, and the convex ribs walk on the grooves back and forth for sliding connection,
or the detachable connecting structure comprises a clamping piece which is parallel to the bottom of the groove and is arranged right up and down on the bottom of the front end part of the first section, the clamping piece comprises an upper clamping piece and a lower clamping piece, the rear half parts of the upper clamping piece and the lower clamping piece are respectively and fixedly connected with the upper side and the lower side of the bottom of the first section, the front half parts of the upper clamping piece and the lower clamping piece form a bearing groove, the wall plate at the rear end part of the end cap is inserted into the bearing groove and is butted with the end surface of the front end part of the first,
the sliding groove sections are duct pieces, the cross section of each duct piece is 1/3-1/2 circular arcs, the diameter of the circle where the circular arcs are located is smaller than the diameter of a drilled hole, the sliding groove sections are connected end to end in a long mode, and the head end portion of the rear sliding groove section is detachably connected with the tail end portion of the front sliding groove section through a connecting assembly.
The material of end cap is the same with the material of spout festival, the spout festival is formed by the direct cutting of pipe, the pipe is PVC pipe or steel pipe, perhaps the spout festival is buckled or prefabricated by the sheet steel and is formed, and the inside binding off that forms in twice upper end of section of jurisdiction.
Coupling assembling is connecting bolt, and the tank bottom downside of back spout festival head tip is pressed and is folded the tank bottom upside to preceding spout festival tail end and laminate from top to bottom, and the head of spout festival, tail end press to fold the position and all opened connecting bolt hole, and two connecting bolt holes align from top to bottom and connect through the connecting bolt who runs through.
The connecting bolt comprises a screw and a nut, the nut is a round cap, and the nut is fastened to the upper side of the inner wall of the rear chute section.
The connecting assembly comprises a limiting bolt and a back plate, the lower side of the groove bottom at the end part of the rear sliding groove section is pressed and overlapped to the upper side of the groove bottom at the tail end part of the front sliding groove section and is attached up and down,
the backplate is one section steel sheet, and the rear end of backplate and the outer wall surface welding of a back spout festival pressure stack position rear side form the opening and accept the opening forward between backplate and the back spout festival, the tail end of preceding spout festival inserts in this accepts the opening, all opened spacing bolt hole on the tail end pressure stack position of preceding spout festival and the backplate position that corresponds, two spacing bolt holes align from top to bottom and run through there is spacing bolt, and spacing bolt's front end top is tight to the outer wall downside of a back spout festival.
The connecting component comprises a flange plate, a flange bolt and a protective plate, the end face of the connecting end of the rear chute section is aligned with the end face of the connecting end of the front chute section,
the flange plate is as wide as the chute section and is vertical to the bottom of the chute section, and comprises a front flange plate and a rear flange plate, the front flange plate is fixedly connected with the tail end part of the front chute section, the rear flange plate is fixedly connected with the head end part of the rear chute section, the front flange plate and the rear flange plate are respectively provided with a flange bolt hole, the flange bolt holes on the two plates are aligned and fastened through a flange bolt penetrating through the holes,
the protection shield sets up with the slope of spout festival with wide, including preceding protection shield and back protection shield, the both ends of preceding protection shield are connected with the outer end of preceding flange board and the surface of preceding spout festival respectively and are enclosed and close the protection space, and the both ends of back protection shield are connected with the outer end of back flange board and the surface of a back spout festival respectively and are enclosed and close the protection space.
The length of the sliding groove section is 5m-8 m.
A construction method of an ultra-long anchor cable chute comprises the following construction steps:
firstly, manufacturing each component of an anchor cable chute in a processing plant according to a chute design drawing;
when the detachable connection structure comprises a groove and a ridge:
manufacturing an end cap: manufacturing an end cap according to the diameter of the drilled hole, so that the diameter of the end cap is slightly smaller than the diameter of the drilled hole; convex edges extending from the plane 13 to the inner part of the cavity are manufactured on the inner wall of the rear half part of the end cap;
manufacturing a sliding groove section: cutting or customizing and bending the pipe to form a pipe piece, wherein the pipe diameter is slightly smaller than the diameter of a drilled hole, and the cross section of the pipe piece is 1/3-1/2 circular arcs; the lower side of the front end part of the first section is provided with two grooves matched with the convex edges along the length direction, so that the first section is ensured to be attached in and out of the end cap; the front end and the rear end of the chute section are provided with connecting components which are fixedly connected with the assembling parts;
when the detachable connection structure includes an upper clip and a lower clip:
manufacturing an end cap: manufacturing an end cap according to the diameter of the drilled hole, so that the diameter of the end cap is slightly smaller than the diameter of the drilled hole;
manufacturing a sliding groove section: cutting or customizing and bending the pipe to form a pipe piece, wherein the pipe diameter is slightly smaller than the diameter of a drilled hole, and the cross section of the pipe piece is 1/3-1/2 circular arcs; the upper side and the lower side of the bottom of the front end part of the first section are respectively and fixedly connected with an upper clamping piece and a lower clamping piece, so that the first section and the end head cap are prevented from deviating; the front end and the rear end of the chute section are provided with connecting components which are fixedly connected with the assembling parts;
transporting the processed anchor cable chute to a construction site, and placing the anchor cable chute at a position close to a drill hole in a material yard;
drilling the anchor cable on site, drilling holes, and pulling out the drill rod;
step four, installing anchor cable chutes section by section: aligning the convex edge with the groove, installing a first section and a head cap, putting the head cap and the first section down into the drill hole, and keeping connection when putting the head cap and the first section down;
connecting the first section with the first section of standard section through a connecting assembly, and continuously lowering the standard section into a drill hole;
step six, the fifth step is repeated, the second section of standard knot is placed and connected with the first section of standard knot, and then the second section of standard knot is placed until all the standard knots are connected into a whole and are completely placed into the bottom of the drilled hole;
seventhly, after the anchor cable chute is lowered, lowering the anchor cable on the formed slide way until the lowering of the anchor cable is finished;
step eight, pulling out the anchor cable sliding groove section by section, pulling out one section, disassembling one section, and collecting and arranging parts of the connecting assembly for turnover use; when the end cap and the first section are pulled out, the end cap and the first section are separated, the end cap is left at the bottom of the hole, and the first section is pulled out;
and step nine, grouting in the drill hole.
Compared with the prior art, the invention has the following characteristics and beneficial effects:
the anchor cable chute adopts a detachable connection mode of the end cap, the first section and the standard section. The inner end of the end cap is made into a semi-ellipsoid shape, so that the collision between the end and the wall of the anchor hole is reduced, and meanwhile, the soil body can be prevented from entering the slideway in the process of lowering the sliding chute. The end cap adopts the detachable slot type to be connected with the first section, keeps connecting when the spout is transferred, when the spout pulls out the recovery outward, first section and end cap separation, and interior end is left and is arranged in the hole bottom, and connection can be dismantled to first section and standard festival, adopts the batch production customization, realizes subsequent turnover and uses.
According to the invention, the problem that the direction is not easy to control due to flexible insertion of the steel strand is solved by utilizing the slide way provided by the chute, the anchor cable bundle is made of a flexible material, and the slide way provided by the chute is utilized, so that the resistance of anchor cable perforation is greatly reduced, the smooth lowering of the anchor cable is ensured, the difficulty that the anchor cable bundle is difficult to lower to the designed depth due to the collision of the anchor cable bundle with the anchor hole wall is overcome, the quick and convenient material for lengthening can be used for turnover, the anchor cable lowering efficiency is improved, the construction efficiency is improved, the problems of hole collapse and necking in the insertion process of the steel strand are reduced, the operation and development in a construction site are facilitated.
The invention particularly aims at the ultra-long anchor cable, adopts the connection among all parts of the sliding groove, has simple operation, rapid extension and convenient stacking, is an extension mode which is beneficial to cyclic utilization, ensures the designed anchoring length and the required pulling resistance of the ultra-long anchor cable, ensures the construction quality of the anchor cable, can be recycled, saves energy, protects the environment and has better economic benefit.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the anchor cable chute of the present invention.
Fig. 2 is a first embodiment connection node between an end cap and a headpiece.
Fig. 3 is a schematic bottom view of fig. 2.
Fig. 4 is a second embodiment connection node between an end cap and a headpiece.
Fig. 5 is a schematic bottom view of the structure of fig. 4.
Fig. 6 is a schematic structural view of a first embodiment of a cross section of a chute section of the invention.
Fig. 7 is a schematic structural view of a second embodiment of a cross section of a chute section of the invention.
Fig. 8 is a first embodiment of a connecting node between the head section and the standard section or the standard section.
Fig. 9 is a second embodiment of a connecting node between the head section and the standard section or the standard section.
Fig. 10 is a third embodiment of a connecting node between the head section and the standard section or the standard section.
Fig. 11 is a side view schematic of the structure of fig. 10.
Reference numerals: 1-end cap, 11-cambered surface, 12-tip, 14-closing, 2-sliding groove section, 21-first section, 22-standard section, 2 a-rear sliding groove section, 2 b-front sliding groove section, 31-groove, 41-convex edge, 32-upper clamping piece, 42-lower clamping piece, 5-connecting bolt, 51-screw rod, 52-screw cap, 6-flange bolt, 7-limiting bolt, 8-back plate, 9-carrying opening, 10-front protection plate, 15-rear protection plate, 16-front flange plate and 17-rear flange plate.
Detailed Description
First embodiment referring to fig. 1-3 and 6, an ultra-long anchor cable chute comprises a strip-shaped chute body, wherein the chute body comprises an end cap 1 and a chute section 2 which are sequentially connected from front to back, and the chute section comprises a first section 21 and at least one standard section 22.
The end cap is a hollow cylinder, the front half end face of the end cap is a closed cambered surface 11, the top end of the cambered surface is a tip 12, and the rear end face of the end cap is open.
The preceding tip of first festival 21 is connected through dismantling connection structure with the back tip of end cap 1, can dismantle connection structure and have the recess 31 that the twice set up along length direction including the preceding tip downside of first festival 21, still include the position that corresponds recess 31 on the latter half inner wall of end cap 1 and have the protruding stupefied 4 of twice and recess matched with, the preceding tip downside of first festival 21 is inside near the cavity that 1 inner wall of end cap stretched into end cap 1, protruding stupefied 41 walks around on recess 31 and carries out sliding connection.
The preceding tip downside of first festival 21 has the recess 31 that the twice set up along length direction, the position that corresponds recess 31 on the latter half inner wall of end cap 1 has the protruding stupefied 4 of twice and recess matched with, the preceding tip downside of first festival 21 stretches into inside the cavity of end cap 1 near 1 inner wall of end cap, walking around protruding stupefied 41 on recess 31 carries out sliding connection. The material of the end cap 1 is the same as that of the chute section.
The chute sections 2 are duct pieces, and the length of the chute sections is 5m-8 m. The chute section is formed by directly cutting a pvc round pipe, and the pipe diameter is slightly smaller than the diameter of a drilled hole. The cross section of the duct piece is 1/3-1/2 circular arcs, the diameter of the circle where the circular arcs are located is smaller than the diameter of a drilled hole, the sliding groove sections are connected end to end in a long way, and the head end part of the rear sliding groove section 2a is detachably connected with the tail end part of the front sliding groove section 2b through a connecting assembly.
Referring to fig. 8, the connecting assembly is a connecting bolt 5, the lower side of the bottom of the head of the rear chute section 2a is pressed and stacked to the upper side of the bottom of the tail of the front chute section 2b and is attached to the upper side of the bottom of the tail of the rear chute section, connecting bolt holes are formed in the pressing and stacking positions of the head and the tail of the chute section, and the two connecting bolt holes are aligned up and down and connected through the penetrating connecting bolt 5. The connecting bolt 5 includes a screw 51 and a nut 52, the nut 52 is a round cap, and the nut 52 is fastened to the upper side of the inner wall of the rear chute section 2 a.
During specific installation, the pressing and stacking part of the sliding groove section is subjected to a next treatment, the upper side of the groove bottom of the tail end part of the previous sliding groove section 2b and the lower side of the groove bottom of the head end part of the next sliding groove section 2a can be subjected to thinning treatment, the two extension parts are attached to each other, and then the sliding groove section is connected with the sliding groove section through a bolt for punching. The diameter of the connecting bolt is determined according to the hole depth and the quantity of the steel strands. The nut adopts the round cap purpose be in order to reduce the friction resistance of connecting bolt to the steel strand wires.
The second embodiment is shown in fig. 1, 4, 5, 7 and 9, and is different from the first embodiment in that the detachable connection structure comprises a clamping piece which is parallel to the bottom of the first section 21 and is arranged right above and below the bottom of the first section, the clamping piece comprises an upper clamping piece 32 and a lower clamping piece 42, the rear half parts of the upper clamping piece 32 and the lower clamping piece 42 are fixedly connected with the upper side and the lower side of the bottom of the first section respectively, the front half parts of the upper clamping piece 32 and the lower clamping piece 42 form a receiving groove, and the rear end wall plate of the end cap is inserted into the receiving groove and is butted with the front end face of the first section.
The pipe is cut by the steel pipe, and the pipe diameter slightly is less than the drilling diameter. The coupling assembling includes spacing bolt 7 and backplate 8, and the tank bottom downside of back spout festival 2a head portion is pressed and is folded to the tank bottom upside of preceding spout festival 2b tail end portion and laminating from top to bottom.
During specific installation, a section of steel plate is welded with the previous sliding groove section to serve as a back plate, a gap is reserved between the back plate and the previous sliding groove section to serve as a bearing opening, then the previous sliding groove section is inserted into the bearing opening, and the two sliding groove sections are tightly propped by the limiting bolt on the back.
Third embodiment referring to fig. 10-11, unlike the second embodiment, the chute sections are formed by custom bending thin steel plates, the shape of the chute sections can be customized as required, the chute sections are not completely in the shape of a circular arc, and the two upper ends of the tube sheet are inward formed with a closing-in 14.
The connecting component comprises a flange plate, a flange bolt 6 and a protective plate, the end face of the connecting end of the rear chute section 2a is aligned with the end face of the connecting end of the front chute section 2b, the flange plate has the same width with the chute section and is vertical to the bottom of the chute section, and comprises a front flange plate 16 and a rear flange plate 17, the front flange plate 16 is fixedly connected with the tail end part of the front chute section 2b, the rear flange plate 17 is fixedly connected with the head end part of the rear chute section 2a, the front flange plate 16 and the rear flange plate 17 are respectively provided with a flange bolt hole, the flange bolt holes on the two plates are aligned and fastened through a flange bolt 6 penetrating through the holes, the protection shield and the spout festival are the same width and slope sets up, including preceding protection shield 10 and back protection shield 15, and the both ends of preceding protection shield 10 are connected with the outer end of preceding flange board 16 and the surface of preceding spout festival 2b respectively and are enclosed the protection space, and the both ends of back protection shield 15 are connected with the outer end of back flange board 17 and the surface of back spout festival 2a respectively and are enclosed the protection space.
During specific installation, the front protection plate 10 and the rear protection plate 15 are provided with operation holes to ensure the installation of the flange bolts 6. In order to reduce the frictional resistance, a protective plate can be processed to be connected with the chute section into a whole.
Referring to fig. 1-11, the construction method of the ultra-long anchor cable chute comprises the following construction steps:
firstly, manufacturing each component of an anchor cable chute in a processing plant according to a chute design drawing;
when the detachable connection structure comprises the groove 31 and the ridge 41:
manufacturing an end cap: manufacturing the end cap 1 according to the diameter of the drilled hole, so that the diameter of the end cap 1 is slightly smaller than the diameter of the drilled hole; convex edges 41 extending from the plane 13 to the inner part of the cavity are manufactured on the inner wall of the rear half part of the end cap 1;
manufacturing a sliding groove section: cutting or customizing and bending the pipe to form a pipe piece, wherein the pipe diameter is slightly smaller than the diameter of a drilled hole, and the cross section of the pipe piece is 1/3-1/2 circular arcs; the lower side of the front end part of the first section 21 is provided with two grooves 31 which are matched with the convex edges along the length direction, so that the first section 21 is ensured to be attached in and out of the end cap 1; the front end and the rear end of the chute section are provided with connecting components which are fixedly connected with the assembling parts;
when the detachable connection structure includes upper clip 32 and lower clip 42:
manufacturing an end cap: manufacturing the end cap 1 according to the diameter of the drilled hole, so that the diameter of the end cap 1 is slightly smaller than the diameter of the drilled hole;
manufacturing a sliding groove section: cutting or customizing and bending the pipe to form a pipe piece, wherein the pipe diameter is slightly smaller than the diameter of a drilled hole, and the cross section of the pipe piece is 1/3-1/2 circular arcs; the upper and lower sides of the bottom of the front end part of the first section 21 are respectively and fixedly connected with an upper clamping piece 32 and a lower clamping piece 42, so that the first section 21 and the end cap 1 are prevented from deviating; the front end and the rear end of the chute section are provided with connecting components which are fixedly connected with the assembling parts;
transporting the processed anchor cable chute to a construction site, and placing the anchor cable chute at a position close to a drill hole in a material yard;
drilling the anchor cable on site, drilling holes, and pulling out the drill rod;
step four, installing anchor cable chutes section by section: aligning the convex edge 41 with the groove 31 to install the first section 21 and the end head cap 1, putting the end head cap and the first section into the drill hole, and keeping the connection when putting the end head cap and the first section down;
connecting the first section with the first section of standard section through a connecting assembly, and continuously lowering the standard section into a drill hole;
step six, the fifth step is repeated, the second section of standard knot is placed and connected with the first section of standard knot, and then the second section of standard knot is placed until all the standard knots are connected into a whole and are completely placed into the bottom of the drilled hole;
seventhly, after the anchor cable chute is lowered, lowering the anchor cable on the formed slide way until the lowering of the anchor cable is finished;
step eight, pulling out the anchor cable sliding groove section by section, pulling out one section, disassembling one section, and collecting and arranging parts of the connecting assembly for turnover use; when the end cap and the first section are pulled out, the end cap and the first section are separated, the end cap is left at the bottom of the hole, and the first section is pulled out;
and step nine, grouting in the drill hole.
Claims (7)
1. A construction method of an ultra-long anchor cable chute is characterized in that,
the ultra-long anchor cable chute comprises a strip-shaped chute body, the chute body comprises an end head cap (1) and a chute section (2) which are sequentially connected from front to back, the chute section comprises a first section (21) and at least one standard section (22),
the end cap is a hollow cylinder, the end surface of the front half part of the end cap is a closed cambered surface (11), the top end of the cambered surface is a tip (12), the end surface of the rear end part of the end cap is open,
the front end part of the first section (21) is connected with the rear end part of the end cap (1) through a detachable connecting structure,
the detachable connecting structure comprises two grooves (31) arranged along the length direction at the lower side of the front end part of a first section (21), and also comprises two convex ribs (41) matched with the grooves at the position corresponding to the grooves (31) on the inner wall of the rear half part of the end cap (1), wherein the lower side of the front end part of the first section (21) extends into the cavity of the end cap (1) near the inner wall of the end cap (1), and the convex ribs (41) walk on the grooves (31) back and forth for sliding connection,
or the detachable connecting structure comprises a clamping piece which is parallel to the bottom of the tank and is right arranged up and down, the bottom of the tank at the front end part of the first section (21) is provided with an upper clamping piece (32) and a lower clamping piece (42), the rear half parts of the upper clamping piece (32) and the lower clamping piece (42) are respectively fixedly connected with the upper side and the lower side of the bottom of the first section, the front half parts of the upper clamping piece (32) and the lower clamping piece (42) form a bearing groove, the wall plate at the rear end part of the end cap is inserted into the bearing groove and is butted with the end surface of the front end part of the first,
the chute sections (2) are duct pieces, the cross sections of the duct pieces are 1/3-1/2 circular arcs, the diameters of circles where the circular arcs are located are smaller than the diameters of drill holes, the chute sections are connected end to end in a long way, and the head end part of the rear chute section (2 a) is detachably connected with the tail end part of the front chute section (2 b) through a connecting assembly;
the construction steps are as follows:
firstly, manufacturing each component of an anchor cable chute in a processing plant according to a chute design drawing;
when the detachable connection comprises a groove (31) and a ridge (41):
manufacturing an end cap: manufacturing the end cap (1) according to the diameter of the drilled hole, so that the diameter of the end cap (1) is slightly smaller than the diameter of the drilled hole; convex edges (41) extending from the plane (13) to the inner part of the cavity are manufactured on the inner wall of the rear half part of the end cap (1);
manufacturing a sliding groove section: cutting the pipe or bending the pipe to form a pipe piece, wherein the pipe diameter is slightly smaller than the diameter of a drilled hole, and the cross section of the pipe piece is 1/3-1/2 circular arcs; the lower side of the front end part of the first section (21) is provided with two grooves (31) matched with the convex edges along the length direction, so that the first section (21) is ensured to be attached in and out in the end cap (1); the front end and the rear end of the chute section are provided with connecting components which are fixedly connected with the assembling parts;
when the detachable connection structure includes an upper clip (32) and a lower clip (42):
manufacturing an end cap: manufacturing the end cap (1) according to the diameter of the drilled hole, so that the diameter of the end cap (1) is slightly smaller than the diameter of the drilled hole;
manufacturing a sliding groove section: cutting the pipe or bending the pipe to form a pipe piece, wherein the pipe diameter is slightly smaller than the diameter of a drilled hole, and the cross section of the pipe piece is 1/3-1/2 circular arcs; the upper and lower sides of the bottom of the front end part of the first section (21) are respectively fixedly connected with an upper clamping piece (32) and a lower clamping piece (42), so that the first section (21) and the end cap (1) are prevented from deviating; the front end and the rear end of the chute section are provided with connecting components which are fixedly connected with the assembling parts;
transporting the processed anchor cable chute to a construction site, and placing the anchor cable chute at a position close to a drill hole in a material yard;
drilling the anchor cable on site, drilling holes, and pulling out the drill rod;
step four, installing anchor cable chutes section by section: aligning the convex edge (41) with the groove (31) to install the first section (21) and the end head cap (1), putting the end head cap and the first section down into the drill hole, and keeping the end head cap and the first section connected when putting down;
connecting the first section with the first section of standard section through a connecting assembly, and continuously lowering the standard section into a drill hole;
step six, the fifth step is repeated, the second section of standard knot is placed and connected with the first section of standard knot, and then the second section of standard knot is placed until all the standard knots are connected into a whole and are completely placed into the bottom of the drilled hole;
seventhly, after the anchor cable chute is lowered, lowering the anchor cable on the formed slide way until the lowering of the anchor cable is finished;
step eight, pulling out the anchor cable sliding groove section by section, pulling out one section, disassembling one section, and collecting and arranging parts of the connecting assembly for turnover use; when the end cap and the first section are pulled out, the end cap and the first section are separated, the end cap is left at the bottom of the hole, and the first section is pulled out;
and step nine, grouting in the drill hole.
2. The construction method of an ultra-long anchor cable runner as claimed in claim 1, wherein: the material of end cap (1) is the same with the material of spout festival, the spout festival is formed by the pipe direct cutting, the pipe is PVC pipe or steel pipe, perhaps the spout festival is buckled or is prefabricated by the sheet steel and forms, and the twice upper end of section of jurisdiction inwards forms binding off (14).
3. The construction method of an ultra-long anchor cable runner as claimed in claim 1 or 2, wherein: coupling assembling is connecting bolt (5), and the tank bottom downside of back spout festival (2 a) head end portion is pressed and is folded the tank bottom upside of preceding spout festival (2 b) tail end and laminate from top to bottom, and the head of spout festival, tail end press to fold the position and all opened connecting bolt hole, and two connecting bolt holes are aligned from top to bottom and are connected through connecting bolt (5) that run through.
4. The construction method of an ultra-long anchor cable runner as claimed in claim 3, wherein: the connecting bolt (5) comprises a screw rod (51) and a nut (52), the nut (52) is a round cap, and the nut (52) is fastened to the upper side of the inner wall of the rear sliding groove section (2 a).
5. The construction method of an ultra-long anchor cable runner as claimed in claim 1 or 2, wherein: the connecting assembly comprises a limiting bolt (7) and a back plate (8), the lower side of the groove bottom of the head end part of the rear sliding groove section (2 a) is pressed and overlapped to the upper side of the groove bottom of the tail end part of the front sliding groove section (2 b) and is attached up and down,
backplate (8) are one section steel sheet, and the rear end of backplate (8) presses the outer wall surface welding of folding position rear side with a back spout festival (2 a), forms opening (9) of accepting forward between backplate and a back spout festival (2 a), the tail end of preceding spout festival (2 b) inserts in this accepting opening (9), all open on the tail end of preceding spout festival (2 b) presses folding position and the backplate position that corresponds has spacing bolt hole, and two spacing bolt holes align from top to bottom and run through there are spacing bolt (7), and the front end top of spacing bolt (7) is tight to the outer wall downside of a back spout festival (2 a).
6. The construction method of an ultra-long anchor cable runner as claimed in claim 1 or 2, wherein: the connecting component comprises a flange plate, a flange bolt (6) and a protective plate, the end face of the connecting end of the rear chute section (2 a) is aligned with the end face of the connecting end of the front chute section (2 b),
the flange plate is as wide as the chute section and is vertical to the bottom of the chute section, and comprises a front flange plate (16) and a rear flange plate (17), the front flange plate (16) is fixedly connected with the tail end part of the front chute section (2 b), the rear flange plate (17) is fixedly connected with the head end part of the rear chute section (2 a), the front flange plate (16) and the rear flange plate (17) are respectively provided with flange bolt holes, the flange bolt holes on the two plates are aligned and fastened through flange bolts (6) penetrating through the holes,
the protection shield sets up with the slope of spout festival with wide, including preceding protection shield (10) and back protection shield (15), the both ends of preceding protection shield (10) are connected with the outer end of preceding flange board (16) and the surface of preceding spout festival (2 b) respectively and are formed to enclose and close the protection space, and the both ends of back protection shield (15) are connected with the outer end of back flange board (17) and the surface of a back spout festival (2 a) respectively and are formed to enclose and close the protection space.
7. The construction method of an ultra-long anchor cable runner as claimed in claim 1, wherein: the length of the sliding groove joint (2) is 5m-8 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910237411.5A CN109898509B (en) | 2019-03-27 | 2019-03-27 | Use method of ultra-long anchor cable sliding groove |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910237411.5A CN109898509B (en) | 2019-03-27 | 2019-03-27 | Use method of ultra-long anchor cable sliding groove |
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| CN109898509A CN109898509A (en) | 2019-06-18 |
| CN109898509B true CN109898509B (en) | 2020-11-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101837122B1 (en) * | 2016-02-03 | 2018-04-19 | 이엑스티 주식회사 | A casing monolithic pile combined with multi-level according to earth |
| CN107152022B (en) * | 2017-07-17 | 2022-08-02 | 中冶沈勘工程技术有限公司 | Internal expansion type grouting-free recyclable anchor cable and construction method thereof |
| CN207847667U (en) * | 2018-02-24 | 2018-09-11 | 山东科技大学 | A kind of back anchorage cable anchoring agent mounting device |
| KR101929420B1 (en) * | 2018-10-23 | 2018-12-14 | 주식회사 동아특수건설 | Expandable permanent anchor |
| CN210127473U (en) * | 2019-03-27 | 2020-03-06 | 中建一局集团第二建筑有限公司 | Slot type anchor cable chute |
| CN209722998U (en) * | 2019-03-27 | 2019-12-03 | 中建一局集团第二建筑有限公司 | Clamping piece type anchor cable chute |
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