CN206128111U - Prestressed rock stock basis of removable stock - Google Patents

Prestressed rock stock basis of removable stock Download PDF

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Publication number
CN206128111U
CN206128111U CN201621113156.1U CN201621113156U CN206128111U CN 206128111 U CN206128111 U CN 206128111U CN 201621113156 U CN201621113156 U CN 201621113156U CN 206128111 U CN206128111 U CN 206128111U
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CN
China
Prior art keywords
anchor pole
anchor
prestressed rock
bolt
prestressed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201621113156.1U
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Chinese (zh)
Inventor
石健
申宽育
胡永柱
李振作
田伟辉
崔振磊
瓮文芳
张钦喜
张俊杰
马云龙
石岩
季东波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Jianancheng Geotechnical Engineering Co Ltd
PowerChina Northwest Engineering Corp Ltd
Original Assignee
Beijing Jianancheng Geotechnical Engineering Co Ltd
PowerChina Northwest Engineering Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Jianancheng Geotechnical Engineering Co Ltd, PowerChina Northwest Engineering Corp Ltd filed Critical Beijing Jianancheng Geotechnical Engineering Co Ltd
Priority to CN201621113156.1U priority Critical patent/CN206128111U/en
Application granted granted Critical
Publication of CN206128111U publication Critical patent/CN206128111U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a prestressed rock stock basis of removable stock, include the concrete cap who forms by the concrete, be equipped with on concrete cap's the bottom surface and be a plurality of that the circumference the distributes grout post that excels in, grout coaxial prestressed rock stock that is equipped with in the post excels in, the upper end of prestressed rock stock pass through the top nut and be connected with top stock fixed plate, the concrete cap center be equipped with anchor cage ring subassembly, the prestressed rock stock on the cover be equipped with the rigid casing pipe no. 1 who is used for keeping apart the grout material, the lower extreme of prestressed rock stock passes bottom stock fixed plate and screw thread even to be had and is the integrative open end and bottom stock fixed plate sealing connection that sets up and be used for keeping apart separation cap one, the separation cap no. 1 of concrete. The utility model discloses a separation cap of integrated setting, the structural style who has improved seal assembly makes it have reduce cost, changes convenient advantage.

Description

The prestressed rock anchor rod foundation of replaceable anchor pole
Technical field
This utility model is related to wind power industry technical field of civil engineering, the prestressing force of more particularly to replaceable anchor pole Rock Bolt Foundation.
Background technology
At present for frame, the pylon of large-scale or large equipment, including wind-driven generator, wind turbine, power transmission line The building such as street lighting and advertiser, bridge pad, business signboard, highway signboard, Ski Lift is taken using scene The concrete foundation built is supported.
Especially in recent years, with China's rapid development of economy and the raising of social environment consciousness, wind-power electricity generation scale Increasingly increase, wind generator tower is increasingly becoming main flow.To adapt to different geological conditions, different coagulation soil matrixs are also had Plinth, in Mountain Conditions, such as:It is suitable for selecting prestressed rock under conditions of solid rock, decomposed rock, sandstone, argillaceous sandstone Anchor rod foundation.
Traditional prestressed rock anchor rod foundation, including the concrete bearing platform formed by concrete, the bottom of concrete bearing platform Face is provided with several high-strength grouting posts being circumferentially distributed, and prestressed rock anchor pole is coaxially provided with high-strength grouting post, described The upper end of prestressed rock anchor pole be connected with roll bolt fixed plate by top nut, concrete bearing platform center is located at anchor cage Ring assemblies;Anchor cage ring component includes upper and lower anchor slab and crab-bolt, and the bottom of crab-bolt is fixed by nut, whole crab-bolt and nut It is all exposed in concrete, to by crab-bolt removal, it is necessary to crab-bolt is separated with nut, but crab-bolt and nut are fixed In concrete, turn torsion very big, it is not easy to rotate crab-bolt and nut, also resulting in crab-bolt cannot feelings detached with nut Condition.
Chinese patent application is published as CN105155571A and discloses a kind of removable prestressed anchor pin device and its peace Dress method and replacing options,, mainly including upper anchor slab, lower anchor slab, in connection, the crab-bolt of anchor slab and lower anchor slab, is enclosed within crab-bolt for which Outer plastic bushing, the upper/lower terminal of plastic bushing are provided with the thermal shrinkable sleeve of plastic bushing upper end by thermal shrinkable sleeve collapsed seal Nonmetallic leveling nut, is provided with top nut at the top of crab-bolt, the bottom of crab-bolt is affixed with lower anchor slab by lower nut, and in lower spiral shell Female outside is arranged a nut box so that concrete is isolated with crab-bolt and nut.
Authorize open (bulletin) number:The utility model patent of CN201747544U discloses a kind of installation of wind-driven generator The installation pedestal of pedestal and the wind-driven generator wind-driven generator, including:Concrete body and at least two lower margin spiral shell Bolt, at least two foundation bolt are embedded in the concrete body;At least two lower margin spiral shell One end of bolt be provided with connection wind-driven generator tower backing plate flange, at least two foundation bolt it is another End is provided with anchoring flange, and the backing plate flange and anchoring flange are installed on the concrete body;The foundation bolt On be arranged with the foundation bolt with sleeve two ends that foundation bolt is isolated with concrete body and be provided with and telescopic joint bellows.
Authorization Notice No. discloses a kind of basic prestressing force anchor slab crab-bolt for the utility model patent of 202023199 U of CN Molectron, including upper anchor slab, lower anchor slab, the long anchor of upper anchor slab and lower anchor slab by long anchor bolts, at the upper and lower plane of upper anchor slab Leveling nut is separately installed with bolt, lower anchor slab is provided with the leveling bolt being evenly distributed, near interior on upper anchor slab baseplane Ring and outer shroud edge are equipped with the welding rivet being evenly distributed, and are separately installed with the long crab-bolt at the upper and lower plane of lower anchor slab Thin nut and nut, are set with heat shrinking sleeve, crab-bolt sleeve pipe in long crab-bolt.
The utility model patent of 203947487 U of Authorization Notice No. CN discloses a kind of wind turbine tower basis and in advance should Power crab-bolt, including two crab-bolt threaded upper ends sections, crab-bolt lower end thread segment, upper screw thread and polished rod changeover portion, lower screw thread and polished rod mistake Section, crab-bolt light bar segment, thin heat shrinking sleeve, thick heat shrinking sleeve are crossed, it is in described thin heat shrinking sleeve suit crab-bolt light bar segment, described Thick heat shrinking sleeve is sleeved on the bottom of crab-bolt light bar segment, and thin heat shrinking sleeve is plugged between thick heat shrinking sleeve and crab-bolt light bar segment, Crab-bolt threaded upper ends section is located at the upper end of crab-bolt light bar segment, and crab-bolt lower end thread segment is located at the lower end of crab-bolt light bar segment, described Upper screw thread is located at the changeover portion of crab-bolt threaded upper ends section and crab-bolt light bar segment, lower screw thread and polished rod transition section with polished rod changeover portion In crab-bolt lower end thread segment and the changeover portion of crab-bolt light bar segment.
To sum up, referring to Figure 12 to Figure 14, all of above mode is in order to realize that isolating between crab-bolt 4 and concrete is adopted Mode is and a plastic bushing 42 is arranged outside crab-bolt 4, and 42 two ends of plastic bushing are sealed by thermal shrinkable sleeve 41.It is first First, nut box is arranged with nut split, in order to realize that the circumferentially fixed of nut is needed by nut-welding on lower anchor slab, but Weld nut or cause the Stress non-homogeneity of whole bottom flange, can also increase by one welding sequence, so as to increase cost;Secondly, it is Meet execution conditions, plastic bushing 42 needs certain gap with crab-bolt 4, and is all filled in 4 device of whole crab-bolt substantially In the middle of concrete, during pouring, concrete will certainly force plastic bushing 42 to the power that plastic bushing 42 produces extruding It is deformed so that not coaxial between crab-bolt 4 and plastic bushing 42, it is difficult to screw out the crab-bolt 4 of fracture and changed;Again, plastics The two ends of sleeve pipe 42 carry out collapsed seal by thermal shrinkable sleeve 41, will thus cause the bore at 42 insert port of plastic bushing Diminish, it is shown in Figure 14, then new crab-bolt 4 is difficult to be inserted in plastic bushing 42, so as to cause to change the not side of crab-bolt 4 Just.
Utility model content
The purpose of this utility model one is to provide the prestressed rock anchor rod foundation of replaceable anchor pole so as to reducing into Originally, change convenient advantage.
Above-mentioned technical purpose of the present utility model one technical scheme is that:A kind of replaceable anchor pole Prestressed rock anchor rod foundation, including the concrete bearing platform formed by concrete, on the bottom surface of the concrete bearing platform and Several high-strength grouting posts being circumferentially distributed are provided with rock mass below bottom surface, pre- answering in the high-strength grouting post, is coaxially provided with Power rock-bolt, the upper end of described prestressed rock anchor pole are connected with roll bolt fixed plate by top nut, described Concrete bearing platform center is provided with anchor cage ring component;It is arranged with described prestressed rock anchor pole for isolating the rigidity of grouting material Sleeve pipe one, the lower end of the prestressed rock anchor pole through bottom anchor pole fixed plate and screw thread be connected be wholely set and for every From the isolating cap one of concrete, opening and the bottom anchor pole fixed plate of isolating cap one are tightly connected.
By adopting above-mentioned technical proposal, on the one hand the setting that rigid casing is arranged outside prestressed rock anchor pole can have Together with effect obstruct concrete is poured with prestressed rock anchor pole, on the other hand as which has rigidity pouring in whole concrete Be unlikely to deform during building and rigid casing one can be caused preferable axiality to be kept with prestressed rock anchor pole, in dismounting and peace It is convenient when dress prestressed rock anchor pole;In addition, the two ends of rigid casing one with roll bolt fixed plate and bottom Portion's anchor pole fixed plate is tightly connected can effectively be prevented the liquid in casting process from being contacted with prestressed rock anchor pole and corrode pre- Stress rock-bolt;Cross integrated setting isolating cap one abandoned prior art in nut or nut box be welded on cast anchor Step on plate, but cause isolating cap circumferentially fixed by the effect that pours of concrete, it is to avoid the defect produced by welding, On the one hand the performance of crab-bolt is improve, on the other hand causes that installation is more simple and convenient, cost is lower.
Shoulder hole one, shoulder hole is provided with as preferred described roll bolt fixed plate and bottom anchor pole fixed plate Two, described one upper end of rigid casing is extended in shoulder hole one and is abutted with the step of shoulder hole one, and lower end extends to ladder Abut in hole two and with two step of shoulder hole.By adopting above-mentioned technical proposal, rigid casing one is extended directly to into top anchor The shoulder hole one of bar fixed plate and bottom anchor pole fixed plate, the two interior sealing that can realize rigid casing of shoulder hole, due to rank In terraced hole one and shoulder hole two, the diameter of aperture is engaged with the diameter of crab-bolt, therefore can effectively prevent roll bolt from fixing Plate is moved radially, and anchor pole fixed plate in bottom will not also be moved radially in the same manner, while which passes through heat in overcoming prior art Contracting set realizes the brought defect of sealing, then the insertion for changing convenient new crab-bolt when crab-bolt.
Include the first prestressed rock anchor pole and the second Prestressed Rock as preferred, described prestressed rock anchor pole Killagh bar, the first described prestressed rock anchor pole are threadedly coupled by adapter sleeve with the second prestressed rock anchor pole, described Rigid casing one is sheathed on the first prestressed rock anchor pole, and the two ends of rigid casing one are sealedly connected on roll bolt admittedly respectively In fixed board and adapter sleeve.
By adopting above-mentioned technical proposal, due to prestressed rock rock-bolt length it is longer, and anchor pole fracture position it is general Concentrate on middle part.Therefore two parts are divided into, are then threadedly coupled by adapter sleeve, thus ensure prestressed rock The bonding strength of anchor pole, adapter sleeve are the equal of the effect of isolating cap, can be by by the effect of rigid casing one and adapter sleeve First prestressed rock anchor pole is isolated with concrete, when the first prestressed rock anchor pole ruptures, by rotating the first prestressing force The end of rock-bolt can just be drawn off.
The shoulder hole that upper end extends to roll bolt fixed plate is extended to as preferred, described one upper end of rigid casing In one, lower end is extended in the shoulder hole three of adapter sleeve.
By adopting above-mentioned technical proposal, can be by the first prestressed rock by the effect of rigid casing one and adapter sleeve Anchor pole is isolated with concrete, when the first prestressed rock anchor pole ruptures, by the end for rotating the first prestressed rock anchor pole Can just be drawn off.
Include anchor slab, lower anchor slab and the upper anchor slab of connection and lower anchor slab as preferred, described anchor cage ring component Crab-bolt, is arranged with rigid casing two in described crab-bolt, described two two ends of rigid casing be sealedly connected on anchor slab and under On anchor slab, the upper end of described crab-bolt is connected with upper anchor slab by top nut, and the lower end of the crab-bolt passes through lower anchor slab screw thread It is connected with being wholely set and the isolating cap two for isolating concrete, the opening of isolating cap two is tightly connected with lower anchor slab.
By adopting above-mentioned technical proposal, be arranged outside crab-bolt rigid casing two setting on the one hand effectively can intercept it is mixed Together with solidifying soil is poured with crab-bolt, on the other hand as which has, be rigidly unlikely to deform in the casting process of whole concrete can So that rigid casing two keeps preferable axiality with crab-bolt, it is convenient when crab-bolt is removed and installed;In addition, just The two ends of property sleeve pipe two are tightly connected with upper anchor slab and lower anchor slab and can effectively prevent liquid and crab-bolt in casting process Contact and corrode crab-bolt;Can on the one hand cause the convenient, cost of handling lower by the isolating cap two of integrated setting, separately One side isolating cap two is by pouring the circumferentially fixed of effect with concrete, it is ensured that isolating cap two is circumferential will not to be rotated easily.
The top for stretching out anchor slab as preferred, described crab-bolt is cylindric or flat or prism-shaped.
By adopting above-mentioned technical proposal, the top that crab-bolt passes upper anchor slab is arranged to flat can be pulled with convenient use The top half rotation of the anchor pole that ruptures is taken out by handss.
Closure nut is as preferred, described isolating cap one, isolating cap two, described rigid casing one, rigidity Sleeve pipe two is stainless steel tube or steel pipe or plastic conduit.
It is by adopting above-mentioned technical proposal, lower directly as isolating cap cost using closure nut, it is more convenient, using not Rust steel pipe or steel pipe or plastic conduit can improve antiseptic property.
In sum, this utility model has the advantages that:In prestressed rock anchor rod foundation, when needs will be pre- Stress rock-bolt is disassembled from basis, is set with stainless steel tube by whole prestressed rock anchor pole on prestressed rock anchor pole Keep apart with concrete, isolating cap one together with concreting limits isolating cap one and rotates with prestressed rock anchor pole, make Produce between prestressed rock anchor pole and isolating cap one and rotate against, so that prestressed rock anchor pole is separated with isolating cap one, In addition also improving during the sealing structure between anchor pole and sleeve pipe has abandoned prior art anchor pole can be caused to be difficult to insert after sealing Defect, realize that anchor pole on prestressed rock anchor rod foundation is replaceable, callable purpose, and change easy construction, section Substantial amounts of maintenance cost has been saved, the basic economic worth has been improve.
Description of the drawings
Fig. 1 is the structural representation of the prestressed rock anchor rod foundation of replaceable anchor pole;
Fig. 2 is for embodying prestressed rock anchor pole with top, bottom anchor pole fixed plate and rigid casing one in embodiment Between attachment structure schematic diagram;
Fig. 3 is A portions enlarged drawing in Fig. 2;
Fig. 4 is B portions enlarged drawing in Fig. 2;
Structural representations of the Fig. 5 for isolating cap one;
Fig. 6 is for embodying the structure of annexation between rigid casing two, crab-bolt and upper and lower anchor slab in embodiment one Schematic diagram;
Fig. 7 is C portions enlarged drawing in Fig. 6;
Fig. 8 is D portions enlarged drawing in Fig. 6;
Fig. 9 is that embodiment three is used to embody the structural representation of prestressed rock anchor pole;
Figure 10 is E portions enlarged drawing in Fig. 9;
Structural representations of the Figure 11 for example IV;
Structural representations of the Figure 12 for the annexation in prior art between anchor pole, sleeve pipe and thermal shrinkable sleeve;
Figure 13 be prior art in for embody change anchor pole when state diagram;
Figure 14 is F portions enlarged drawing in Figure 13;
Figure 15 is the structural representation for embodying beche.
In figure:1st, concrete bearing platform;11st, casting concrete screed-coat;12nd, concrete cushion;2nd, anchor cage ring component;2a、 Upper anchor slab;21a, shoulder hole four;2b, roll bolt fixed plate;21b, shoulder hole one;3a, lower anchor slab;31a, shoulder hole five;3b、 Bottom anchor pole fixed plate;31b, shoulder hole two;4a, prestressed rock anchor pole;41a, the first prestressed rock anchor pole;42a, second Prestressed rock anchor pole;4b, crab-bolt;41st, thermal shrinkable sleeve;42nd, plastic bushing;43rd, adapter sleeve;431st, shoulder hole three;51st, rigid enclosure Guan Yi;52nd, rigid casing two;61a, top nut;61b, top nut;71st, isolating cap one;72;Isolating cap two;9th, bottom column Cylinder;10th, rock mass;101;Polyethylene benzene plate;11st, sheath;111st, drill bit.
Specific embodiment
This utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment 1, referring to shown in Fig. 1 to 2, a kind of prestressed rock anchor rod foundation of replaceable anchor pole is included in rock mass The concrete bearing platform 1 of the casting concrete screed-coat 11, concrete cushion 12 and cylinder that pour on 10 and it is embedded in mixed Anchor cage ring component 2 in the middle part of solidifying soil cushion cap 1,1 circle distribution of concrete bearing platform have prestressed rock anchor pole 4a, Prestressed Rock killagh Bar 4a wears roll bolt fixed plate 2b, concrete bearing platform 1, concrete cushion 12, polyethylene benzene plate 101 and concrete successively and looks for In the prestressed rock bolthole of flat bed 11 to rock mass 10.
The outer rigid casing 1 for being arranged with the concrete for isolation of prestressed rock anchor pole 4a, rigid casing 1 Two ends be tightly connected.
The upper end of prestressed rock anchor pole 4a is connected with roll bolt fixed plate 2b by top nut 61b, Prestressed Rock The lower end of killagh bar 4a is connected with bottom anchor pole fixed plate 2b.
The lower section of bottom anchor pole fixed plate 3b is located at the position of screwed hole and installs isolating cap 1, prestressed rock anchor pole 4a Extend to inside isolating cap 1 through bottom anchor pole fixed plate 3b and be threadedly coupled with isolating cap 1, isolating cap 1 is mixed Solidifying soil is cast in prestressed rock bolthole, and it is by pouring effect with concrete that this mode causes isolating cap 7 circumferential Fixed, isolating cap 1 is circumferential will not to be rotated easily.
Referring to Fig. 3, rigid casing 1 is made the following instructions with being tightly connected for prestressed rock anchor pole 4a upper ends, top One 21b of shoulder hole is set in anchor pole fixed plate 2b, and the upper end of rigid casing 1 is extended in one 21b of shoulder hole, rigid casing One 51 top is abutted with the step of one 21b of shoulder hole, and the diameter of the macropore in one 21b of shoulder hole is equal to rigid casing 1 Diameter, the diameter of aperture are engaged with the diameter of prestressed rock anchor pole 4a, and the depth of aperture is equal to the depth of macropore, and such one The insertion of new prestressed rock anchor pole 4a can also be facilitated on the premise of sealing effectiveness is realized.
Referring to Fig. 4, rigid casing 1 is made the following instructions with being tightly connected for prestressed rock anchor pole 4a lower ends, bottom Two 31b of shoulder hole is set in anchor pole fixed plate 3b, and rigid casing 1 extended in two 31b of shoulder hole, the macropore of shoulder hole with The external diameter of rigid casing 1 is equal, and the aperture of two 31b of shoulder hole is engaged with the diameter of prestressed rock anchor pole 4a, aperture Depth is equal to the half of bottom anchor pole fixed plate 3b thickness.On the one hand abandoned what is plastic bushing sealed by thermal shrinkable sleeve On the other hand mode, has also abandoned in prior art because nut needs to be welded on the defect brought by bottom anchor pole fixed plate 3b.
For doing following explanation to anchor cage ring component 2 below the embodiment:
Shown in Figure 6, anchor cage ring component 2 includes anchor slab 2a, lower anchor slab 3a and crab-bolt 4b, and crab-bolt 4b is double. The lower section of lower anchor slab 3a is located at the position of screwed hole and installs isolating cap 2 72, and crab-bolt 4b extends to isolating cap two through lower anchor slab 3a It is threadedly coupled inside 72 and with isolating cap 2 72, isolating cap 2 72 is cast in concrete, this mode causes isolating cap 2 72 weeks To fixation be that logical concrete pours effect so that can make isolating cap 2 72 circumference will not be light in the case where welding Easily rotate.
Referring to Fig. 7, rigid casing 2 52 is made the following instructions with being tightly connected for crab-bolt 4b upper end, arranged on upper anchor slab 2a Four 21a of shoulder hole, the upper end of rigid casing 2 52 are extended in four 21a of shoulder hole, the top of rigid casing 2 52 and shoulder hole The step of four 21a is abutted.
Referring to Fig. 7, rigid casing 2 52 is made the following instructions with being tightly connected for crab-bolt 4b lower end, arranged on lower anchor slab 3a Five 31a of shoulder hole, rigid casing 2 52 are extended in five 31a of shoulder hole, macropore and the rigid casing 2 52 of five 31a of shoulder hole External diameter is equal, and the aperture of five 31a of shoulder hole is engaged with the diameter of crab-bolt 4b, and the depth of aperture is equal to the one of lower anchor slab 3a thickness Half.On the one hand abandoned by way of plastic bushing is sealed by thermal shrinkable sleeve, on the other hand also abandoned in prior art Because nut needs to be welded on the defect brought by lower anchor slab 3a.
Embodiment 2, referring to Fig. 9 and Figure 10, a kind of prestressed rock anchor rod foundation of replaceable anchor pole, with 2 phase of embodiment Than difference it is:Prestressed rock anchor pole 4a is divided into two parts for the first prestressed rock anchor pole 41a, the second prestressed rock The end face of anchor pole 42a, adapter sleeve 43, the first prestressed rock anchor pole 41a and the second prestressed rock anchor pole 42a in adapter sleeve 43 Installing hole 431 is set, and rigid casing 1 is set on the first prestressed rock anchor pole 41a, and the lower end of rigid casing 1 is prolonged Extend in installing hole 431, the diameter of installing hole 431 is equal to the equal diameters of rigid casing 1.
In the embodiment, the tip portion of the first prestressed rock anchor pole 41a is arranged to flat, is arranged such and can lead to Cross spanner to be drawn off.
Embodiment 4, a kind of shown in Figure 11, prestressed rock anchor rod foundation of replaceable anchor pole, the area with embodiment 1 In not being anchor cage ring component 2, crab-bolt 4b is double single structures.
Embodiment 5, a kind of replacing construction method of the prestressed rock anchor rod foundation of replaceable anchor pole, including following step Suddenly;
A, by fracture prestressed rock anchor pole 4a top take out;
B, stretched into using beche in rigid casing 1 and the prestressed rock anchor pole 4a of fracture is taken out;
C, insert new prestressed rock anchor pole 4a from one 21a of shoulder hole of roll bolt fixed plate 3a, revolve at top Turn prestressed rock anchor pole 4a so as to which end is screwed in isolating cap 1, then at the place of the top of roll bolt fixed plate 3a New pad and top nut 61b are installed successively.
Shown in Figure 15, in the present embodiment, the concrete structure of beche includes sheath 11 and is arranged in sheath 11 Drill bit 111, sheath 11 is steel bushing, the diameter of the diameter of sheath lower end slightly larger than prestressed rock anchor pole 4a.Sheath 11 is stretched into Rigid casing 1 is interior and is enclosed within the outside of fracture prestressed rock anchor pole 4a by sheath 11 and prestressed rock anchor pole 4a Interference fits realize fixing, drill bit 111 is stretched in sheath 11 and is contradicted with the fracture end face of fracture prestressed rock anchor pole 4a, is bored 111 cooperation electric drills are used together, and drive the latter half of fracture prestressed rock anchor pole 4a reverse while drill bit 111 is pierced Rotation, makes fracture prestressed rock anchor pole 4a exit from isolating cap 1.Due to prestressed rock anchor pole 4a fracture end face injustice It is whole, therefore play occurs when drill bit 111 just starts and pierces, the effect of sheath 11 can be with effective protection rigid casing one 51.The shell of this oversheath 11 and electric drill is fixed, to prevent sheath 11 from dropping in rigid casing 1.
Embodiment 6, a kind of replacing construction method of the prestressed rock anchor rod foundation of replaceable anchor pole, including following step Suddenly;
A, detection prestressed rock anchor pole 4a crack conditions, if being found to be prestressed rock anchor pole 4a materials or other systems Defect causes fracture, then prepare to change all unbroken rock-bolt 4a;
B, from top by prestressed rock anchor pole 4a take out;
C, insert new prestressed rock anchor pole 4a from one 21a of shoulder hole of roll bolt fixed plate 3a, revolve at top Turn prestressed rock anchor pole 4a so as to which end is screwed in isolating cap 1, then at the place of the top of roll bolt fixed plate 3a New pad and top nut 61b are installed successively.
Due to the structure of anchor cage ring component 2 it is similar with the structure of prestressed rock anchor pole 4a, therefore change crab-bolt 4b not Again repeating.
This specific embodiment is only which is not to restriction of the present utility model, ability to explanation of the present utility model Field technique personnel can make the modification for not having creative contribution after this specification is read as needed to the present embodiment, but As long as all being protected by Patent Law in right of the present utility model.

Claims (7)

1. a kind of prestressed rock anchor rod foundation of replaceable anchor pole, including the concrete bearing platform (1) formed by concrete, described Several high-strength grouting posts being circumferentially distributed are provided with rock mass on the bottom surface of concrete bearing platform (1) and below bottom surface (13), the high-strength grouting post(13)Prestressed rock anchor pole is coaxially provided with inside(4a), described prestressed rock anchor pole(4a) Upper end pass through top nut(61b)With roll bolt fixed plate(2b)Connection, described concrete bearing platform(1)Center is provided with anchor Cage ring component(2);It is characterized in that:Described prestressed rock anchor pole(4a)On be arranged with for isolating the rigid enclosure of grouting material Guan Yi(51), the prestressed rock anchor pole(4a)Lower end pass through bottom anchor pole fixed plate(3b)And screw thread is connected with integrally setting Put and for isolating the isolating cap one of concrete(71), isolating cap(71)Opening and bottom anchor pole fixed plate(3b)Sealing Connection.
2. the prestressed rock anchor rod foundation of replaceable anchor pole according to claim 1, it is characterised in that:Described top Anchor pole fixed plate(2b)And bottom anchor pole fixed plate(3b)It is provided with shoulder hole one(21b), shoulder hole two(31b), described is firm Property sleeve pipe one(51)Upper end extends to shoulder hole one(21b)It is interior and with shoulder hole one(21b)Step abut, lower end extends to rank Terraced hole two(31b)It is interior and with shoulder hole two(31b)Step is abutted.
3. the prestressed rock anchor rod foundation of replaceable anchor pole according to claim 1, it is characterised in that:It is described it is pre- should Power rock-bolt(4a)Including the first prestressed rock anchor pole(41a)And the second prestressed rock anchor pole(42a), described One prestressed rock anchor pole(41a)With the second prestressed rock anchor pole(42a)By adapter sleeve(43)Threaded connection, described is firm Property sleeve pipe one(51)It is sheathed on the first prestressed rock anchor pole(41a)On, rigid casing one(51)Two ends be tightly connected respectively In roll bolt fixed plate(2b)And on adapter sleeve (43).
4. the prestressed rock anchor rod foundation of replaceable anchor pole according to claim 3, it is characterised in that:Described rigidity Sleeve pipe one(51)Upper end extends to shoulder hole one(21b)Interior, lower end extends to adapter sleeve(43)Shoulder hole three(431)It is interior.
5. the prestressed rock anchor rod foundation of replaceable anchor pole according to claim 1, it is characterised in that:Described anchor cage Ring assemblies(2)Including upper anchor slab(2a), lower anchor slab(3a), and the upper anchor slab of connection(2a)With lower anchor slab(3a)Crab-bolt(4b), Described crab-bolt(4b)On be arranged with rigid casing two(52), described rigid casing two(52)Two ends are sealedly connected on anchor slab (2a)And lower anchor slab(3a)On, described crab-bolt(4b)Upper end pass through top nut(61a)With upper anchor slab(2a)Connection, it is described Crab-bolt(4b)Lower end pass through lower anchor slab(3a)And screw thread is connected with being wholely set and the isolating cap two for isolating concrete (72), isolating cap two(72)Opening and lower anchor slab(3a)It is tightly connected.
6. the prestressed rock anchor rod foundation of replaceable anchor pole according to claim 5, it is characterised in that:Described crab-bolt (4b)Stretch out anchor slab(2a)Top be cylindric or flat or prism-shaped.
7. the prestressed rock anchor rod foundation of replaceable anchor pole according to claim 1, it is characterised in that:Described isolation Cap one(71), isolating cap two(72)It is closure nut, described rigid casing one(51), rigid casing two(52)For rustless steel Pipe or rigid plastics or steel pipe.
CN201621113156.1U 2016-10-11 2016-10-11 Prestressed rock stock basis of removable stock Expired - Fee Related CN206128111U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106320367A (en) * 2016-10-11 2017-01-11 北京健安诚岩土工程有限公司 Prestress rock anchor rod foundation with anchor rods capable of being replaced
CN108397356A (en) * 2018-03-23 2018-08-14 健安诚(内蒙古)新能源科技有限公司 The blower foundation and intelligence Qu Gan robots of the replaceable anchor bolt of intelligence

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106320367A (en) * 2016-10-11 2017-01-11 北京健安诚岩土工程有限公司 Prestress rock anchor rod foundation with anchor rods capable of being replaced
CN106320367B (en) * 2016-10-11 2018-08-24 北京健安诚岩土工程有限公司 The prestressed rock anchor rod foundation of replaceable anchor pole
CN108397356A (en) * 2018-03-23 2018-08-14 健安诚(内蒙古)新能源科技有限公司 The blower foundation and intelligence Qu Gan robots of the replaceable anchor bolt of intelligence

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