Assembling stake-plate-anchor-beam combined type batholith supporting and protection structure
Technical field
The utility model relates to a kind of assembling stake-plate-anchor-beam combined type batholith supporting and protection structure.
Technical background
In recent years along with the fast development of China's modernization construction, and under financial crisis background, country implements to expand domestic demand policy of regulation and control, and infrastructure construction increases input, therefore a large amount of the emerging in large numbers of major works such as some highrise buildings.Contemporary cities building density is comparatively large, and many buildings have basement or the underground garage of 1 ~ 3 layer, and the corresponding batholith cutting depth brought is all very large.
At present, the batholith supporting method be widely adopted in construction has slope protection pile supporting, soil-nail wall support, diaphragm wall supporting, pile-anchor retaining etc.And select traditional slope excavation of putting just to be difficult in the realistic case implement when there is no adjacent building or underground structure; And put the increase of slope excavation along with cutting depth, earth excavation amount also increases, and has not been very applicable in the angle of high-efficiency and economic thereupon; Although soil-nail wall support takes advantage in duration, input, cost, its poor stability; The combination supporting that slope protection pile supporting, slope protection pile are combined with prestressed anchor and diaphragm wall supporting safety all the highest, but comparatively speaking, diaphragm wall cost and equipment investment larger; And traditional anchored pile supporting is all field cast-in-place, a lot of inconvenience to underground construction band, efficiency of construction is low.
Given this, need a kind of speed of application of invention at present badly fast, the assembling stake-plate-anchor-beam combined type batholith supporting and protection structure of strong, the safety and stability high of globality of the field combinations assembling of a plate anchor beam, the reinforcement connection of stake plate, precast plate can be realized.
Summary of the invention
The structure that the utility model relates to has easy for installation, efficiency of construction is high, be a kind of realize a plate anchor beam field combinations assembling, stake plate reinforcement connect, have that precast plate globality is strong, the assembling stake-plate-anchor-beam combined type batholith supporting and protection structure of safety and stability high.
For achieving the above object, the utility model have employed following technical scheme:
A kind of assembling stake-plate-anchor-beam combined type batholith supporting and protection structure, is characterized in that: described supporting and protection structure is primarily of soldier pile (1), precast plate (4), anchor pole (5), prefabricated waist rail (2), Guan Liang (3) and prestress anchorage cable composition (30); Soldier pile (1) is with connection tongue, and reserved horizontal dowel (11) one end of soldier pile is connected with the vertical main muscle of soldier pile by connecting inner sleeve (12), and the other end is connected with the main muscle of precast plate (13) by connecting outer sleeve (14); Precast plate is linked together by grooving build-in between (4); Precast plate is vertically reserved in anchor cable hole (29) and is arranged prestress anchorage cable (30), by precast plate stretch-draw together; Prefabricated waist rail reserves bolthole, by anchor pole (5), prefabricated waist rail (2) is fixed on precast plate and reserves in waist rail groove (27).
Described precast plate (4) surrounding is with concavo-convex tongue-and-groove, the side that precast plate (4) contacts with soldier pile (1) is reserved with precast plate Hou Jiao reinforced company tape splicing groove (28), precast plate (4) and waist rail (2) junction are provided with precast plate and reserve waist rail groove (27), and precast plate (4) is provided with precast plate and reserves bolthole (19) and precast plate reserves screw hole (21).
Described connection outer sleeve (14) is that 2 branch sleeves are welded, and connects outer sleeve (14) and is weldingly fixed on the main muscle of precast plate (13), connect the main muscle of outer sleeve (14) Hou Chahoujiao reinforced company tape splicing (15).
Prefabricated waist rail is provided with reserved anchor pole through hole and screw rod through hole, by anchor pole, prefabricated waist rail is fixed on precast plate and reserves in transverse concave groove.
Above-mentioned assembling stake-plate-anchor-beam combined type batholith construction method for supporting, mainly comprises the following steps:
(1) soldier pile construction: adopt percussive drill, aims on the stake point position of putting well in advance by drill bit of drilling machine central point, ensure that drilling rod is vertical, it is outer male structure that soldier pile pore-forming excavates side at batholith; The reserved horizontal dowel (11) of soldier pile (1) is connected with the vertical main muscle (9) of soldier pile by connecting inner sleeve (12), and reinforcing cage colligation well carries out install reinforcing cage later, ensures that reinforcing cage is reserved dowel aligning and is placed in supporting stake holes concave portion;
Hang fixing reinforcing cage complete, hang steel conduit according to hole depth, conduit is transferred until 0.30 ~ 0.50m at the bottom of distance hole; More than concrete pouring to stake top 30 ~ 50cm;
(2) batholith excavation: after soldier pile maintenance reaches requirement, excavate batholith step by step from top to bottom; Being knocked out by the concrete of soldier pile concave portion makes reserved dowel outside exposed;
(3) anchor pole: carry out anchor pole (5) line setting according to designing requirement; Adopt armature boring machine to carry out armature boring, make anchor pole before boring prerequisite, anchor pole adopts high pressure special slip casting pump to carry out bolt grouting after inserting bolthole;
(4) precast plate is installed: precast plate (4) from top to bottom block-by-block is installed, and during prefabricate and install, ensures that the reserved horizontal dowel (11) of soldier pile is punctured in the connection outer sleeve (14) of precast plate, then inserts the main muscle of Hou Jiao reinforced company tape splicing (15);
(5) waist rail is installed: prefabricated waist rail (2) is temporarily fixed at precast plate by screw rod (7) and reserves in waist rail groove (27), then carries out anchor pole stretch-draw and utilizes ground tackle to be fixed by waist rail (2);
(6) vertical anchorage cable stretching: insertion prestress anchorage cable (30) in the reserved vertical anchor cable hole (29) of precast plate concreting carries out stretch-draw fixes;
(7) Hou Jiao reinforced company tape splicing construction: build self-compacting concrete in precast plate (4) with soldier pile Hou Jiao reinforced company tape splicing (16); Reach after requirement until maintenance, then carry out batholith excavation and precast plate, anchor pole, prefabricated waist rail installation;
(8) Guan Liang construction: before carrying out Guan Liang (3) construction, by designing requirement absolute altitude, stake jacking row is measured, all absolute altitudes exceed the castinplace pile of requirement beyond 10cm all must carry out the work of cutter pile crown; Cutter pile crown adopts pneumatic pneumatic pick, requires that the pile crown dug out is smooth; Cutter stake after hours, starts to carry out Guan Liang construction; Guan Liang construction segmentation is carried out, and directly in soil, mould is made in grooving; Require in construction that unwrapping wire is accurate, Molded Depth is consistent, and die wall is straight, and Guan Liang uses C25 concrete, is poured rear maintenance.
The utility model has following feature and beneficial effect:
(1) after soldier pile has been constructed and has been reached curing requirements, just can excavate from top to bottom batholith, the concrete cutting soldier pile link slot allows the completely exposed installation out can carrying out precast plate and prefabricated waist rail and anchor pole of reserved horizontal dowel, and easy for installation, efficiency of construction is high.
(2) soldier pile is reserved horizontal dowel and is connected with precast plate main muscle by connecting outer sleeve and inserts vertical main muscle, and concreting formation soldier pile and precast plate reinforced company tape splicing, by force, stability is high for structural integrity.
(3) precast plate is concavo-convex tenon groove structure, and during installation, precast plate grooving together, and reserves in vertical anchor cable hole at precast plate and arrange prestress anchorage cable by precast plate stretch-draw together, and easy for installation, globality is strong.
(4) prefabricated waist rail reserves anchor pole through hole and bolt-through hole, waist rail install time by bolt by temporary fixed for prefabricated waist rail, be then completely fixed in precast plate transverse concave groove by waist rail by anchor pole, security and stability is high.
Accompanying drawing explanation
Fig. 1 is the utility model assembling stake-plate-anchor-beam combined type batholith supporting and protection structure schematic diagram;
Fig. 2 is that stake-plate-anchor-beam connects detail drawing;
Fig. 3 is soldier pile and precast plate bar connecting detail drawing;
Fig. 4 is precast plate detail drawing;
Fig. 5 is assembling stake-plate-anchor-beam combined type batholith supporting and protection structure detail side elevation;
Fig. 6 is construction flow chart;
In figure: 1. soldier pile; 2. prefabricated waist rail; 3. Guan Liang; 4. precast plate; 5. anchor pole; 6. prefabricated waist rail reserves bolthole; 7. screw rod; 8. waist rail reserves screw hole; 9. the vertical main muscle of soldier pile; 10. soldier pile stirrup; 11. reserved horizontal dowels; 12. connect inner sleeve; The main muscle of 13. precast plate; 14. connect outer sleeve; The vertical main muscle of 15. Hou Jiao reinforced company tape splicing; 16. Hou Jiao reinforced company tape splicings; 17. backing plates; 18. ground tackles; 19. precast plates reserve bolthole; 20. prefabricated waist rails reserve screw hole; 21. precast plates reserve screw hole; 22. boltholes; The vertical tenon of 23. precast plate; The vertical groove of 24. precast plate; 25. precast plate levels are to tenon; 26. precast plate levels are to groove; 27. precast plates reserve waist rail groove; 28. precast plate Hou Jiao reinforced company tape splicing grooves; 29. reserved vertical anchor cable holes; 30. prestress anchorage cables; 31. batholiths.
Detailed description of the invention
Just do not state tired in these enforcements such as present embodiment welding for steel structure technique, bolt connection construction technique, template-setup technique and concrete pouring construction technique, emphasis sets forth the embodiment that the utility model relates to structure.
Fig. 1 is the utility model assembling stake-plate-anchor-beam combined type batholith supporting and protection structure schematic diagram.Fig. 2 is that stake-plate-anchor-beam connects detail drawing.Fig. 3 is soldier pile and precast plate bar connecting detail drawing.Fig. 4 is precast plate detail drawing.Fig. 5 is assembling stake-plate-anchor-beam combined type batholith supporting and protection structure detail side elevation.Fig. 6 is construction flow chart.
With reference to shown in Fig. 1, the utility model assembling stake-plate-anchor-beam combined type batholith supporting and protection structure mainly comprises: soldier pile 1, prefabricated waist rail 2, hat beam 3, precast plate 4, anchor pole 5, prefabricated waist rail reserve bolthole 6, screw rod 7, waist rail reserve screw hole.
With reference to shown in Fig. 2, during the colligation of soldier pile reinforcing cage, arrange connect inner sleeve 12 at the vertical main muscle 9 of soldier pile, reserved horizontal dowel 11 one end of soldier pile is fixedly connected with the vertical main muscle 9 of soldier pile by connecting inner sleeve 12; Reserved horizontal dowel 11 other end of soldier pile is connected with the main muscle 13 of precast plate by connecting outer sleeve 14, and inserts the main muscle of Hou Jiao reinforced company tape splicing (15) in connection outer sleeve 14; Together, prefabricated waist rail 2 is fixed on precast plate 4 by screw rod 7 and anchor pole 5 precast plate 4 grooving.
With reference to shown in Fig. 3, connect outer sleeve 14 to be welded and fixed with the main muscle 13 of precast plate, the main muscle 15 of the vertical main muscle 9 of soldier pile, the reserved horizontal dowel 11 of soldier pile, the main muscle of precast plate 13, Hou Jiao reinforced company tape splicing by connection inner sleeve 12 be connected outer sleeve 14 and link together.
With reference to shown in Fig. 4, precast plate 4 comprise the vertical tenon of precast plate 23, the vertical groove of precast plate 24, precast plate level to tenon 25, precast plate level to groove 26, the main muscle of precast plate 13, connect outer sleeve 14, precast plate reserves bolthole 19, precast plate reserves screw hole 21, precast plate reserves waist rail groove 27, precast plate Hou Jiao reinforced company tape splicing groove 28, reserved vertical anchor cable hole 29.
With reference to shown in Fig. 5, prefabricated waist rail 2 is fixed on precast plate by anchor pole 5 and reserves in waist rail groove 27, and precast plate is reserved in vertical anchor cable hole 29 and arranged prestress anchorage cable 30, by precast plate 4 stretch-draw together.
Above-mentioned assembling stake-plate-anchor-beam combined type batholith construction method for supporting, mainly comprises the following steps:
(1) soldier pile construction: rig adopts percussive drill.Drill bit of drilling machine central point, under the commander of ground staff, is aimed on the stake point position of putting well in advance by behaviour brill person, and ensure that drilling rod is vertical, it is outer male structure that soldier pile pore-forming excavates side at batholith.The reserved horizontal dowel 11 of soldier pile 1 is connected with the vertical main muscle 9 of soldier pile by connecting inner sleeve 12, and reinforcing cage colligation well carries out install reinforcing cage later, ensures that reinforcing cage is reserved dowel aligning and is placed in supporting stake holes concave portion.
Hang fixing reinforcing cage complete, hang steel conduit according to hole depth, conduit is transferred until 0.30 ~ 0.50m at the bottom of distance hole.In casting process, if need tube drawing, strictly must control the length of pulling out conduit at every turn, ensure that the degree of depth that conduit is imbedded in concrete is not less than 2.0m.More than concrete pouring to stake top 30 ~ 50cm., ensures stake top quality.
(2) batholith excavation: after soldier pile maintenance reaches requirement, excavate batholith step by step from top to bottom.Being knocked out by the concrete of soldier pile concave portion makes reserved dowel outside exposed.
(3) anchor pole: carry out anchor pole line setting according to designing requirement.Adopt armature boring machine to carry out armature boring, before boring prerequisite, make anchor pole 5, after anchor pole inserts bolthole 22, adopt high pressure special slip casting pump to carry out bolt grouting.
(4) precast plate is installed: precast plate 4 from top to bottom block-by-block is installed, and during prefabricate and install, to ensure in the connection outer sleeve that the reserved horizontal dowel 11 of soldier pile 1 is punctured into precast plate 4 14, the then main muscle 15 of insertion Hou Jiao reinforced company tape splicing.
(5) waist rail is installed: prefabricated waist rail 2 is temporarily fixed at precast plate by screw rod 7 and reserves in waist rail groove 27, then carry out anchor pole 5 stretch-draw and utilize ground tackle 18 to be fixed by prefabricated waist rail 2.
(6) vertical anchorage cable stretching: the reserved vertical anchor cable hole 29 of precast plate 4 in insertion prestress anchorage cable 30 also concreting carry out stretch-draw and fix.
(7) Hou Jiao reinforced company tape splicing construction: build self-compacting concrete in precast plate 4 with soldier pile 1 Hou Jiao reinforced company tape splicing 16.Reach after requirement until maintenance, then carry out batholith excavation and precast plate 4, anchor pole 5, prefabricated waist rail 2 installation.
(8) Guan Liang construction: before carrying out hat beam 3 construction, should measure stake jacking row by designing requirement absolute altitude, and all absolute altitudes exceed the castinplace pile of requirement beyond 10cm all must carry out the work of cutter pile crown.Cutter pile crown adopts pneumatic pneumatic pick, requires that the pile crown dug out is smooth.Cutter stake after hours, starts to carry out Guan Liang construction.Guan Liang construction segmentation is carried out, and directly in soil, mould is made in grooving.Require in construction that unwrapping wire is accurate, Molded Depth is consistent, and die wall is straight, has the Tu Chu that collapses, and available dirt is floating or use template set level.Hat beam 3 uses C25 concrete, is poured rear attention maintenance.