CN203701141U - Retaining wall structure adopting tensile anchor cables or anchor bars with flat and inclined axes - Google Patents
Retaining wall structure adopting tensile anchor cables or anchor bars with flat and inclined axes Download PDFInfo
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- CN203701141U CN203701141U CN201320687169.XU CN201320687169U CN203701141U CN 203701141 U CN203701141 U CN 203701141U CN 201320687169 U CN201320687169 U CN 201320687169U CN 203701141 U CN203701141 U CN 203701141U
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Abstract
The utility model relates to the technical field of civil engineering, and discloses a retaining wall structure adopting tensile anchor cables or anchor bars with flat and inclined axes. The retaining wall structure comprises a retaining wall vertically driven into the bottom end of soil mass and the anchor cables or anchor bars used for tensile the retaining wall, wherein anchor holes for the anchor cables or anchor bars to penetrate and be fixed are formed in the retaining wall, one end of each anchor cable or anchor bar is an anchoring end inserted into the soil mass for anchoring, the other end is an outer anchor head anchored to the retaining wall, and a gap between the soil mass and the retaining wall is filled with earth rocks which are compacted to form a earth fill body; supporting and steering structures for providing the anchor cables or anchor bars with steering and supporting are arranged on the surface of the soil mass in the positions where the anchor cables or anchor bars penetrate out, and the anchor cables or anchor bars penetrate through the supporting and steering structures and are anchored to the retaining wall; and the anchor holes and the supporting and steering structures are located on the same horizontal plane. After passing through the supporting and steering structure, the anchor cables or anchor bars in to-be-filled space are horizontal, so that mechanical movement and compaction are facilitated, the straightness is good, and potential safety hazards are avoided.
Description
Technical field
The utility model relates to the technical field of civil engineering, relates in particular to the flat inclined of anchor pulling shaft line and is anchored rope or is anchored pole spacing wall construction.
Background technology
When complex-terrain is built road or other building in mountain region etc., need on slope soil, first construct firm ground.Retaining wall structure is a kind of method that common slope soil builds ground, its principle is to squeeze into retaining wall in the soil body one side, then embankment compacting between slope and retaining wall, becoming qualified filling body is required ground, in this form of construction work, because retaining wall bears the lateral earth pressure from filling body, how improving its soundness is technology the most key in this engineering.
As shown in Figure 1, the soil body 21 outsides are slope, squeeze into retaining wall 3 in its bottom for anchor rope of the prior art or anchor bar retaining wall structure, then use strip anchor rope or the anchor bar 4 that steel strand or reinforcing bar are made to fix the two.The soil body 21 is inserted in the one end that is wherein anchored rope or anchor bar 4, and grout pouring becomes anchored end 41 and is fixed in the soil body 21, and the other end, through retaining wall 3, is fixed on the outside of retaining wall 3 by outer anchor head 31.Can tightly hold retaining wall 3 by being anchored rope or being anchored bar 4 like this, can bear larger lateral earth pressure, then between the soil body 21 and retaining wall 3, insert native stone, compacting forms filling body 22, the ground that building needs.Although traditional anchor rope or anchor pole spacing wall construction are from the design, comparatively firm, in actual applications, have born technological deficiency.
In order to realize the firm of anchored end 41, in the hole of executing man-hour requirement and first get out at the soil body 21 inclination, after being anchored rope or being anchored in bar 4 one end patchholes, grout injection formation anchored end 41.If lateral aperture, cement paste can flow backwards, and cannot fill, and causes anchored end 41 itself firm not, leaves potential safety hazard.Accordingly, being anchored rope or being anchored bar 4 is also the hole that is obliquely installed to adapt to inclination.
In the time just starting embankment, as shown in Figure 2, embankment construction works machinery 5 carries out embankment operation at the anchor rope tilting or below being anchored bar 4, now can be according to construction requirement, and embankment compacting goes out qualified filling body 22.In the time that certain phase is constructed in embankment, as shown in Figure 3, engineering machinery 5, above more and more higher filling body 22, interferes between engineering machinery and anchor rope or anchor bar 4, cannot enter the below that is anchored rope or is anchored bar 4 and carry out operation.
Now have two kinds of forms of construction work, one is manually to enter to be anchored rope or to be anchored bar 4 belows to banket, and another is shown in Fig. 3, will be anchored rope or be anchored one end release that bar 4 connects retaining wall 3, and after having banketed, anchor is tight again.These two kinds of methods all exist potential safety hazard, and the degree of compaction that the former bankets is of poor quality, and the filling body 22 of formation does not reach compaction requirement; The latter can only be applied to the soft anchor rope that steel strand make or be anchored in the engineering of bar 4, in the process of embankment, need constantly to adjust the anchor rope exposing or be anchored bar 4 parts, fill one deck, regulate and be once anchored rope or be anchored the position of bar 4, not only comparatively trouble of construction, and finally in filling body 22, be anchored rope or be anchored the virtual condition of bar 4 and the angle of designing requirement and axis and differ larger, anchor rope or anchor bar 4 validity own do not reach requirement, have safety defect.
Utility model content
The purpose of this utility model is to provide the flat inclined of anchor pulling shaft line be anchored rope or be anchored pole spacing wall construction, is intended to solve in prior art, be anchored rope or be anchored pole spacing cob wall complicated trouble of construct in embankment, likely leaves over the problem of potential safety hazard.
The utility model is to realize like this, the flat inclined of anchor pulling shaft line is anchored rope or is anchored pole spacing wall construction, comprise and vertically squeeze into the retaining wall of slope soil bottom and strain the anchor rope of described retaining wall or be anchored bar for being anchored, on described retaining wall, offer for described anchor rope or be anchored bar and pass fixing anchor hole, described anchor rope or anchor bar one end are the anchored end of inserting described soil body anchoring, the other end is the outer anchor head being anchored to described retaining wall, described anchored end and described anchor hole are positioned at same perpendicular, between the described soil body and described retaining wall, fill native stone and compacting becomes filling body, in described soil body surface and in described anchor rope or be anchored the position that passes of bar, be provided with to be used to described anchor rope or to be anchored bar the support turning to and support steering structure is provided, described anchor rope or anchor bar are through described support steering structure, be anchored to described retaining wall, described anchor hole and described support steering structure are in same level.
Further, described anchor rope or anchor bar are made up of steel strand, described support steering structure is concrete pile or reinforced concrete pile, and inner being provided with supplies described anchor rope or is anchored the bending steering tube that bar penetrates, described steering tube runs through described support steering structure, and exit and described anchor hole are positioned at same level.
Further, described anchor rope or anchor bar and described support steering structure are fixed by grout injection in described steering tube.
Further, described anchor rope or anchor bar are two sections of rod-like element that reinforcing bar is made, squeezing into the described soil body for one section becomes described anchored end, and another section of level is anchored to described retaining wall, two sections of described anchor ropes or be anchored bar and be fastened in described support steering structure.
Further, also comprise the protecting tube for wrapping up described anchor rope or anchor bar, described protecting tube is arranged in described filling body, middle part leaves for described anchor rope or anchor bar passes and the cavity of injected water mud, described protecting tube is spliced into by the lower tube half being oppositely arranged and upper tube half, and described protecting tube cross section is rectangle.
Further, described support steering structure lower end is provided with many for securing it to the earth anchor of the described soil body, and described earth anchor end inserts soil body perfusion anchoring medium and fixes.
Further, between the described soil body and described retaining wall, be provided with multiple anchor ropes or be anchored bar, correspondence is provided with multiple support steering structures, interfixes to form support steering structure contact beam or framework between described multiple support steering structures by reinforced concrete structure.
Compared with prior art, in the utility model, be anchored rope or be anchored bar and turn to by supporting steering structure realization, in filling body, be horizontally disposed with, in the process of embankment, do not exist and tilt to be anchored rope or be anchored the problem that bar is interfered construction machinery, can directly carry out easily embankment operation by engineering machinery, in filling body, be anchored rope or be anchored bar can keep straight eligible state, can not leave potential safety hazard.
Accompanying drawing explanation
Fig. 1 is existing anchor rope or anchor pole spacing soil structure schematic diagram in background technology;
Fig. 2 is embankment operation incipient stage schematic diagram in Fig. 1;
Fig. 3 be in Fig. 1 in embankment operation engineering machinery be anchored rope or be anchored bar interfere schematic diagram;
The flat inclined of anchor pulling shaft line that Fig. 4 provides for the utility model embodiment is anchored rope or is anchored the structural representation of pole spacing wall construction;
Fig. 5 is that the flat inclined of the anchor pulling shaft line in the utility model embodiment is anchored rope or is anchored pole spacing wall construction and the stressed contrast schematic diagram of existing anchor rope or anchor pole spacing soil structure;
Fig. 6 is the stressed schematic diagram that the flat inclined of the anchor pulling shaft line in the utility model embodiment is anchored rope or anchor pole spacing wall construction;
Fig. 7 is the force analysis sketch that the flat inclined of the anchor pulling shaft line in the utility model embodiment is anchored rope or anchor pole spacing wall construction;
Fig. 8 is the support steering structure contact girder construction schematic diagram that the flat inclined of the anchor pulling shaft line in the utility model embodiment is anchored rope or anchor pole spacing wall construction;
Fig. 9 is the protecting tube structural representation that the flat inclined of the anchor pulling shaft line in the utility model embodiment is anchored rope or anchor pole spacing wall construction;
The second support steering structure and soil body mounting means that Figure 10 provides for the utility model embodiment;
The third support steering structure and soil body mounting means that Figure 11 provides for the utility model embodiment.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Below in conjunction with concrete accompanying drawing, the realization of the present embodiment is described in detail.
As shown in Figure 4, the flat inclined of anchor pulling shaft line is anchored rope or is anchored pole spacing wall construction, comprise and vertically squeeze into the retaining wall 3 of slope soil 21 bottoms and strain the anchor rope of retaining wall 3 or be anchored bar 1 for being anchored, on retaining wall 3, offer for being anchored rope or being anchored bar 1 and pass fixing anchor hole 31, being anchored rope or being anchored bar 1 one end is the anchored end 11 of inserting the soil body 21 anchorings, the other end is the outer anchor head 13 being anchored to retaining wall 3, between the soil body 21 and retaining wall 3, fill native stone compacting and become filling body 22, pass the lip-deep position of the soil body 21 at anchor rope or anchor bar 1, be provided with to be used to be anchored rope or to be anchored bar 1 the support steering structure 12 turning to and support is provided, be anchored rope or be anchored bar 1 through supporting steering structure 12, be anchored to retaining wall 3, anchor hole 31 and support steering structure 12 are in same level.
In practice of construction, owing to needing grout pouring to realize the fixing of anchored end 11, so want downward-sloping pore-creating grout injection, then insert anchored end 11 fixing.In this example unlike the prior art, pass on the position of the soil body 21 at anchor rope or anchor bar 1, be provided with and support steering structure 12, support steering structure 12 and be arranged on the height and position that is positioned at same level with anchor hole 31, steering structure 12 is rear to be turned to through supporting to be anchored rope or anchor bar 1, the horizontal retaining wall 3 that is connected to.In the process of construction, there will not be and be anchored rope or be anchored bar 1 because being obliquely installed the situation that causes interfering mechanical execution and work progress trouble, the filling body 22 of can successively constructing out easily.After embankment completes, the anchor rope in filling body 22 or anchor bar 1 can keep straight eligible state, can not produce because of construction the problem of axis runout designing requirement, and easy construction, can not leave potential safety hazard yet.
In practice of construction, through experiment and trial repeatedly, find the anchor rope of level or be anchored bar 1 except constructability, also have the following advantages:
1) outer anchor head 13 is comparatively firm.As shown in Figure 1, in prior art due to whole anchor rope or be anchored bar 4 be to be obliquely installed, beyond institute, anchor head place is also skewed, and the structural requirement of anchor head stretch-draw table top and anchor rope or the vertical anchor power that guarantee maximum is set of anchor bar 4, and need to apply prestressing force in the process being anchored, on the outer anchor head tilting, be difficult to carry out firm anchor and apply prestressing force, the anchor ability of itself is poor, the situation that there will be outer anchor head to come off, cause oblique anchor rope or be anchored bar 4 and lost efficacy, cause potential safety hazard.And anchor rope in the present embodiment or to be anchored bar 4 be horizontally disposed, outer anchor head 13 is also correspondingly horizontally disposed with, and it is all comparatively easy anchor structure to be installed and to apply prestressing force, and last anchor effect is also more satisfactory, can reach designing requirement, the situation that there will not be outer anchor head 13 to come off.
Fixing more fastening with the outer anchor head 31 of retaining wall 3 in order to make to be anchored rope or to be anchored bar 4 in prior art, stretch-draw prestressing force need to be provided, there is angle owing to being anchored rope or anchor bar 4 axis and retaining wall 3 facades, need to have and be anchored rope or be anchored the stretch-draw face that bar 4 axis are vertical, in structure, to increase sphenoid stretching bed at the outer facade of retaining wall 3, this stretching bed construction is complicated, and strength deficiency, easily destroys.This structure has been eliminated above-mentioned two defects, and the first, built-in pipe plane is laid, and with retaining wall 3 parallel reinforced steel bars, not affected by angle.The second, cancel inclination stretching bed, stretch-draw face is directly at the outer facade of retaining wall 3, and intensity is enough, and installation is convenient, and has saved the cost of wedge shape stretching bed.
2) anchor rope or anchor bar 1 are more firm.As shown in Figure 5, in the filling body 22 of the soil body 21 surface constructions tilting, exist the plane of fracture 221 tilting to barricade, in the situation that there is no retaining wall 3, filling body 22 can start downward slippage from the plane of fracture 221.Between the plane of fracture 221 rear portions and the soil body 21, part is stable region, and this part this body structure of the soil body is comparatively stable, and even without retaining wall 3, its inner frictional force also can make it keep stable, and slippage can not occur.Between the plane of fracture 221 front portions and barricade, part is slip region, and the soil body of slip region produces lateral earth pressure to barricade, produces shearing force at plane of fracture place to being anchored rope or being anchored bar simultaneously.Under filling body 22 and upper load effect thereof, the body of the anchor rope at the plane of fracture 221 places or anchor bar is subject to larger shearing force, especially, with anchor rope or the anchor bar of reinforcement fabrication, easily destroys at the plane of fracture 221 places.Anchor rope in anchor rope or anchor bar 4 and the present embodiment of the medium dip of contrast prior art or anchor bar 1, being tilted to be anchored rope or to be anchored bar with horizontal direction is subject to force direction inclination angle to be respectively α 1 and α 2, pass through geometrical relationship, easily know that α 1 is greater than α 2, the anchor rope or the anchor bar that are tilted to setting can be subject to larger shearing force, are more prone to lose efficacy.So the shearing force that the anchor rope in the present embodiment or anchor bar 1 are subject on the plane of fracture 221 is less, more firm.
3) anchoring effect can be observed in the time of stretch-draw, in the time that anchored force is not enough, can remedy in real time.In the present embodiment, support steering structure 12 and be anchored rope or be anchored outside bar 1 is exposed to, in the time of initial tensioning, can directly observe the stressed situation of change of anchored end 11, if displacement situation has exceeded design restriction, anchored force does not reach requirement, the remedial measure that increases auxiliary anchoring on steering structure 12 supporting can be taked, the good result of anchoring can be guaranteed like this.And existing oblique anchoring piece 4 anchored end 41 are lower than outer anchor head position, embankment must reach a certain height could stretch-draw, and (face that bankets is when being anchored rope or being anchored bar, stretching rear machinery because of stretch-draw cannot spreading), now be anchored rope or be anchored bar 4 that to have imbedded filling body 1～2m dark, cannot directly observe the stressed situation of change of anchored end 41, once anchored force deficiency, cannot take to increase the remedial measure of anchored force.
4) anchor rope or anchor bar 1 are difficult for being damaged.Can pass retaining wall 3 in order to make to be anchored rope or to be anchored bar 1, need built-in pipe on retaining wall 3 in advance, anchor rope in existing barricade or anchor bar 4 are for being obliquely installed, its setting angle is subject to the interference of retaining wall 3 interior reinforcing bars, easily there is error, the axis of built-in pipe is very difficult consistent with the actual axis that is anchored rope or anchor bar 4, and the mouth of pipe basil that often produces built-in pipe is damaged the phenomenon that is anchored rope or is anchored bar 4.
Be anchored rope or be anchored bar 1 and made by steel strand or reinforcing bar, supporting steering structure 12 is concrete pile or reinforced concrete pile, inside is provided with for being anchored rope or being anchored the bending steering tube that bar 1 passes, and steering tube runs through support steering structure 12, and exit and anchor hole 31 are positioned at same level.
The anchor rope that steel strand are made or anchor bar 1 are software part, can bear larger pulling force, and position are flexible, easily traction.The anchor rope that reinforcing bar is made or anchor bar 1 can be made bool, bending section is positioned at and supports steering structure 12, for this anchor rope or anchor bar 1, support steering structure 12 inside and be provided with steering tube, be anchored rope or be anchored bar 1 through after steering tube, realize from tilting to turning to of level.
In actual use, also can adopt the support steering structure of other structure, for example, fixed pulley is set and be anchored rope or be anchored bar 4 for reinforcing bar formula and walk around and turn to, or they sup-port its turn to etc.
In steering tube, be perfused with cement paste, be anchored rope or anchor bar 1 and described support steering structure 12 and interfix.
In practice, the size while needing integrated construction is selected different support steering structure 12 design schemes.Because bending steel strand have the designing requirement of bending angle, if bending angle is excessive, can affect the physical arrangement of steel strand itself, affect its stretching resistance characteristic.There is wider thickness and less bending angle need to support steering structure 12, guarantee to seamlessly transit.If larger-size construction site can directly be designed support steering structure 12, and not need to consider its width restriction.Support the thickness of steering structure 12 if need restriction in construction, can adopt the mode of grout injection, anchor rope or anchor bar 1 are fixed together with support steering structure 12, even if there is so larger bending angle, because the steel strand of sweep are fixing by cement paste pouring, the mode of cement paste pouring can not affect this part resistance to tension, so can be dwindled the thickness that supports steering structure 12 yet.
The present embodiment also provides another to be anchored rope or has been anchored bar 1 scheme, be anchored rope or be anchored two sections of rod-like element that bar 1 is made for reinforcing bar, imbed the soil body 21 for one section and become anchored end 11, another section of level is anchored to 3, two sections of described anchor ropes of retaining wall or is anchored bar 1 and be connected to respectively and support steering structure 12 two ends.This scheme reinforcing bar body of rod sectional connects, be divided into free segment and anchoring section two joints, between two joints, adopt nipple to connect, first construct anchoring section and support steering structure 12, do not affect embankment roller compaction construction, embankment is connected with nipple free segment reinforcing bar when being anchored rope or be anchored bar 1 height and can continues to construct with anchoring section, constructs convenient, and reliable in quality.And reinforcement rod structure itself is compared with aforesaid strand structure, the cost of material is low, and mounting cost is low, and supports the fixing also more convenient of steering structure 12.In existing structure, adopt reinforcing bar to make to be anchored rope or to be anchored the construction of bar 1 very inconvenient, because oblique reinforcing bar is in embankment district, construction machinery is difficult to operation.
In aforesaid two kinds of anchor ropes or anchor bar 1 scheme, by being anchored rope or being anchored bar 1 mode fixing with supporting steering structure 12, compared with inclination anchoring piece 4 of the prior art, can provide larger anchored force.Principle as shown in Figure 1 and Figure 4, actual filling body 22 some stable region that are stabilized structure at plane of fracture rear portion, also can provide a part of anchored force, but the anchored force of the anchoring piece 4 being obliquely installed all provides by anchored end 41, cannot make full use of this part anchored force.And anchor rope in the present embodiment or be anchored bar 1 and be horizontally disposed with, be fixed together with support steering structure 12, support the pressure that steering structure 12 itself is subject to the filling body 22 in stable region, be converted into a part of anchored force, the anchored force that is anchored rope or anchor bar 1 is provided jointly by a part and the soil body 21 of filling body 22, in the situation that other condition is all identical, can provide larger anchored force for retaining wall.
As shown in Figure 6 and Figure 7, in figure, T is for being anchored rope or being anchored draw-bar pull for its force analysis; N is anchored force; Ea supports the anchored force from stable region that steering structure 12 is subject to; Ex is the basic frictional force that supports steering structure 12; Ey is the foundation bearing capacity that supports steering structure 12; Ex, Ey make a concerted effort for Eb, and Eb is for supporting steering structure subgrade reaction.In existing structure, as shown in Figure 1, anchored force N is all provided by the pulling force T that is anchored rope or anchor bar 4, in the time that pulling force T increases, anchored force N also needs to increase and just can meet the demands, and because anchored end 41 cross sections and Anchoring force can not infinitely increase, the length that can only increase length or the whole anchor rope of anchored end 41 or be anchored bar 4 just can meet the demands, such mode is not only wasted material more, is also subject to the objective geology condition restriction of job location simultaneously.
In the power system of the present embodiment, T=N+Ea+Eb, Ea is from the banket anchored force of middle generation of stable region.Eb is the oblique component of pulling force, and this power is divided into again Ex and Ey, and Ex is parallel direction of pull, is provided by the frictional resistance that supports steering structure 12 bottoms; Ey is the power of vertical tension direction, acts directly on and supports in steering structure 12 bottom solums, is provided by the bearing capacity of soil layer, can support steering structure 12 floor spaces by expansion and improve bearing capacity.
As shown in Figure 4, in the present embodiment, be provided with many earth anchors 124 supporting the lower end of steering structure 12, go for supporting steering structure 12 substrates and rub in hypodynamic geological conditions, such as Soft Soil Layer etc., have improved the frictional resistance of Ex, and applicability is stronger.
As shown in figure 10, the support of supporting steering structure 12 can also adopt the mode of tilt stage, places at the soil body 2 the bottom place that supports steering structure 12, and the step tilted to the soil body 2 is set, and can more be conducive to firm frictional force for support steering structure 12 provides.
As shown in figure 11, earth anchor 124b can be set to skewed, support steering structure 12 lower ends and be set to sphenoid 124, insert after the soil body 2, perfusion anchoring medium forms fixing step 123, and in sphenoid 124, squeezes into the through hole of inclination, places earth anchor 124b in through hole, earth anchor 124b one end is through the fixing rear insertion soil body 2 of step 123, and the other end is placed in through hole fixing.This fixed form is comparatively firm, provides larger bed knife for supporting steering structure 12, has increased the anchored force that is anchored rope or is anchored bar 4.Anchoring medium in the present embodiment is cement, also can adopt other material medium in actual production, for example concrete, and it is medium that cutting stone sinks to figure.
So, in the situation that same pulling force T is provided, the anchored force N that existing oblique anchor rope or anchor bar 4 itself bear wants large, and anchor rope in the present embodiment or be anchored bar 4, take full advantage of the anchored force of filling body 22 stable regions and bearing capacity, the frictional resistance of the soil body 21, the anchored force that anchor rope or anchor bar itself bear is little, so just can shorten anchored end 11, save material cost and construction cost, improved efficiency of construction simultaneously.
As shown in Fig. 4 and Fig. 9, the present embodiment also comprises the protecting tube 14 that is anchored rope or is anchored bar 1 for wrapping up, protecting tube 14 is arranged in filling body 22, protecting tube middle part is left for being anchored rope or being anchored bar 1 and is passed and the cavity of injected water mud, protecting tube 14 is spliced into by the lower tube half 142 being oppositely arranged and upper tube half 141, and protecting tube 14 cross sections are rectangle.
Need to draw and establish in advance owing to being anchored rope or being anchored bar 1, then carry out embankment.And the embankment activity duration is longer, direct exposed anchor rope or anchor bar 1 are not only easily corroded, and may be subject to mechanical damage.After sheathed protecting tube 14, can avoid being anchored rope or be anchored bar 1 and directly contact with filling body 22, and protecting tube 14 inside are filled with cement paste, after cement paste is fixed, can fix being anchored rope or being anchored bar 1.In construction, adopt in advance methods such as being coated with rustproof paint, bag hemp cut, preservation fat to carry out anticorrosion to being anchored rope or being anchored bar 1, in the time that filling body 22 is constructed anchor rope or anchor bar 1 residing height, first put into lower tube half 142 at anchor rope or anchor bar 1 lower end, then buckle upper tube half 141, continue construction embankment, can carry out up cal rolling embankment and also can not cause anchor rope or be anchored bar 1 mechanical damage, completely cut off and open filling body 22 simultaneously, also can play etch-proof effect.After the interior injected water mud of protecting tube 14, the two can be fixed together, there will not be loosening situation, can guarantee that the axis that is anchored rope or is anchored bar 1 meets the requirements, and get rid of air to being anchored the corrosiveness of rope or anchor bar 1.
The protecting tube 14 of rectangle is placed in filling body and can not rolls, constructability.
As shown in Figure 8, be provided with multiple anchor ropes or be anchored bar 1 between the soil body 21 and retaining wall 3, correspondence is provided with multiple support steering structures 12, supports between steering structure 12 and is interfixed and formed support steering structure contact beam or framework 122 by fluid concrete structure.
In practice of construction, often need multiple anchor ropes or be anchored bar 1 to fix retaining wall 3, and the quantity of retaining wall 3 also may have multiaspect, in prior art, between multiple anchor ropes or anchor bar, there is no association, bearing tension separately, in the different parts pulling force difference of structure, may cause the problem of indivedual inefficacies.Multiple anchor ropes or be anchored that bar 1 is corresponding is provided with multiple support steering structures 12 in the present embodiment, anchor rope as shown in Figure 1 or anchor bar 1 and second are anchored rope or are anchored bar 1`, correspondence is provided with and supports steering structure 12 and the second support steering structure 12`, after being connected and fixed with concrete structure pouring between multiple support steering structures, form and support steering structure contact beam or framework 122, the single-point anchored force constraint that each can be anchored to rope or anchor bar forms integral fastening power, and interconnective contact beam or framework 122 also can be subject to the anchored force from stable region, further increase anchored force.In practice of construction, can first build to manufacture and support steering structure 12, then support steering structure contact beam or framework 122 by coupling together between multiple support steering structures 12 to form.The shaft-like anchor rope of making for reinforcing bar or anchor bar 1, also can be anchored after end 11 installations, directly build and make multiple support steering structures 12 and whole support steering structure contact beam or framework 122, and then another section of fixed anchoring rope or anchor bar 1, cost of manufacture is low, and speed of application is fast.
The present embodiment also provides construction method, for the firm filling body 22 of constructing out between slope soil 21 and retaining wall 3, comprises the following steps:
1) on slope soil 21, vertical pile is set up at interval, certain altitude bassets on pile top, towards interval in filling body one side vertical axis, one or more anchor holes 31 are set at pile, between stake, neutral gear place sets up cast-in-place or precast rc slab, forms retaining wall 3;
2) tilt and make one or more angling holes downwards at the soil body 21, make pore-creating height with the above anchor hole of barricade in same level, and make aperture the shortest to the distance of described anchor hole, and after pore-creating completes, anchor rope or anchor bar 1 one end being stretched in hole, grout injection fixedly becomes anchored end 11;
3) be anchored rope or be anchored the angled orifices place step excavation that bar 1 passes, on step, setting up to be used to be anchored rope or to be anchored bar provides the support steering structure 12 turning to and support, make to be anchored rope or be anchored bar 1 through after supporting steering structure 12 and anchor hole 31 in same level;
4) start embankment and compacting operation from bottom between the soil body 21 and retaining wall 3, in embankment operation, anchor rope or anchor bar 1 are imbedded, specify compacting height until arrive, form filling body 22.
5) in constructing, concrete strength all reaches after designing requirement everywhere, on the anchor rope through anchor hole 31 or anchor bar 1, corresponding anchor head 13 is installed, and carries out stretch-draw to being anchored rope or being anchored bar 1, applies prestressing force;
6) continue embankment and compacting operation, by anchors rope or be anchored bar 1 and imbed, embankment on a row when being anchored rope or being anchored bar 1 height, repeat above-mentioned steps 4), step 5), until arrive specified altitude assignment, formation filling body 22.
In the process of construction, supporting steering structure 12 is reinforced concrete cast-in-situ body, cast-in-placely front step is excavated into in earth's surface, do the basis of supporter, the harder employing of soil layer is compared with small size basis, softer employing larger area basis can be squeezed into earth anchor as required in basis, prevents from supporting steering structure 12 to being subject to force direction displacement.Supporter is not should be too small perpendicular to anchorage cable stretching direction section area yet.By being anchored rope or being anchored the support steering structure 12 that bar 1 turns to and supports, it is horizontal being anchored rope or being anchored bar 1 in the space for the treatment of embankment, when embankment operation, do not need embankment stage by stage, only need normal embankment can complete filling body 22, and the outer anchor head 13 that does not need to discharge anchor rope or be anchored bar 1, the axis of itself meets the demands, and work progress is convenient, good engineering quality.
For comparatively large-scale engineering, multiple anchor ropes are provided or are anchored bar 1 and support steering structure 12, further comprising the steps of before step 3): will between multiple support steering structures 12, to interfix by fluid concrete structure, form support steering structure contact beam or framework 122 take multiple support steering structures as node.
Supporting steering structure contact beam or framework 122 is that vertical or horizontal multiple support steering structure steel concrete is connected into a longitudinal grade beam or horizontal grade beam, or will indulge cross binding steering structure simultaneously and be connected into a similar cancellated reinforced concrete frame, each supports steering structure 12 is grade beam or cancellated node.The pulling force that multiple anchor ropes or anchor bar 1 are subject to can be dispersed to whole support steering structure contact beam or framework 122, and the stability of engineering is better.
Further comprising the steps of in step 3), the protecting tube 14 being made up of the lower tube half 142 being oppositely arranged and upper tube half 141 is provided, the cross section of protecting tube 14 is rectangle,
In the time that embankment face reaches anchor hole 31 place horizontal plane, first free segment being anchored to rope or being anchored bar 1 adopts painting rustproof paint, bag hemp cut, preservation fat and sleeve pipe to carry out after anti-corrosion protection, again anchor rope or anchor bar 1 are extended to retaining wall 3 and pass anchor hole 31 along embankment face, the lower tube half 142 of protecting tube 14 is installed at embankment face, anchor rope or anchor bar 1 are inserted to lower tube half 142, insert protecting tube latch, the upper tube half of then closing 141 continues embankment;
After embankment and compacting complete, seal to the interior grout injection of described protecting tube 14.
In order to prevent causing mechanical damage and corrosion to being anchored rope or being anchored bar 1 in embankment operation, sheathed protecting tube 14, so that cal rolling goes out qualified filling body, can not damage and be anchored rope or be anchored bar 1 simultaneously.If a complete pipe box, need to be set in advance and be anchored rope or be anchored bar 1 outside, be anchored rope or be anchored when bar 1 is anchored to retaining wall 3 and need to be anchored with heavy pipe box, increase like this difficulty of construction.The protecting tube 14 of upper and lower two semicanals designs, more for convenience, and can not affect the anchor process that is anchored rope or is anchored bar 1 at work progress.
The flat inclined of anchor pulling shaft line in the present embodiment is anchored rope or is anchored pole spacing wall construction, be anchored rope or be anchored bar 1 and turn to by supporting steering structure 12 realizations, in filling body 22, be horizontally disposed with, work progress is comparatively easy, support the anchored force that steering structure 12 has utilized filling body stable region, add the earth anchor that bottom arranges, provide than inclined-pulling type and be anchored rope or be anchored the more anchored force of bar 4, Stability Analysis of Structures.Anchor rope in filling body 22 or anchor bar 1 outside are arranged with protecting tube 14, can protect it can not damaged by cal rolling, and the cement paste induration of protecting tube 14 fillings can make to be anchored rope or be anchored bar 1 and can not be corroded.In the time being provided with multiple anchor ropes or being anchored the situation of bar 1, to between corresponding support steering structure 12, fix with reinforced concrete beam, disperseed be anchored rope or be anchored the pulling force that bar 1 is subject to, pulling force is evenly distributed, total is more firm, can not leave potential safety hazard.
Construction method in the present embodiment; by changing the support steering structure 12 that is anchored rope or is anchored bar 1 direction; in work progress, do not need embankment stage by stage; in the process that the protecting tube 14 of upper and lower semi-canal type can carry out in embankment, be mounted to the outside that is anchored rope or is anchored bar 1; when protection is provided; do not affect the installation that is anchored rope or is anchored bar 1 and be anchored, middle part grout injection induration can prevent from being anchored rope or be anchored bar 1 and be corroded.Directly successively cal rolling embankment, embankment job execution is easy, is anchored rope or is anchored straight the meeting the requirements of bar 1 axis in filling body, can not depart from.Easy construction, can not leave potential safety hazard yet.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. the flat inclined of anchor pulling shaft line is anchored rope or is anchored pole spacing wall construction, comprise and vertically squeeze into the retaining wall of slope soil bottom and strain the anchor rope of described retaining wall or be anchored bar for being anchored, on described retaining wall, offer for described anchor rope or be anchored bar and pass fixing anchor hole, described anchor rope or anchor bar one end are the anchored end of inserting described soil body anchoring, the other end is the outer anchor head being anchored to described retaining wall, described anchored end and described anchor hole are positioned at same perpendicular, between the described soil body and described retaining wall, fill native stone and compacting becomes filling body, it is characterized in that, in described soil body surface and in described anchor rope or be anchored the position that passes of bar, be provided with to be used to described anchor rope or to be anchored bar the support turning to and support steering structure is provided, described anchor rope or anchor bar are through described support steering structure, be anchored to described retaining wall, described anchor hole and described support steering structure are in same level.
2. the flat inclined of anchor pulling shaft line as claimed in claim 1 is anchored rope or is anchored pole spacing wall construction, it is characterized in that, described anchor rope or anchor bar are made up of steel strand, described support steering structure is concrete pile or reinforced concrete pile, and inner being provided with supplies described anchor rope or is anchored the bending steering tube that bar penetrates, described steering tube runs through described support steering structure, and exit and described anchor hole are positioned at same level.
3. the flat inclined of anchor pulling shaft line as claimed in claim 2 is anchored rope or is anchored pole spacing wall construction, it is characterized in that, described anchor rope or anchor bar and described support steering structure are fixed by grout injection in described steering tube.
4. the flat inclined of anchor pulling shaft line as claimed in claim 1 is anchored rope or is anchored pole spacing wall construction, it is characterized in that, described anchor rope or anchor bar are two sections of rod-like element that reinforcing bar is made, squeeze into the described soil body for one section and become described anchored end, another section of level is anchored to described retaining wall, two sections of described anchor ropes or be anchored bar and be fastened in described support steering structure.
5. the flat inclined of anchor pulling shaft line as claimed in claim 1 is anchored rope or is anchored pole spacing wall construction, it is characterized in that, also comprise the protecting tube for wrapping up described anchor rope or anchor bar, described protecting tube is arranged in described filling body, middle part leaves for described anchor rope or anchor bar passes and the cavity of injected water mud, described protecting tube is spliced into by the lower tube half being oppositely arranged and upper tube half, and described protecting tube cross section is rectangle.
6. the flat inclined of anchor pulling shaft line as claimed in claim 1 is anchored rope or is anchored pole spacing wall construction, it is characterized in that, described support steering structure lower end is provided with many for securing it to the earth anchor of the described soil body, and described earth anchor end inserts soil body perfusion anchoring medium and fixes.
7. the flat inclined of the anchor pulling shaft line as described in claim 1 to 6 any one is anchored rope or is anchored pole spacing wall construction, it is characterized in that, between the described soil body and described retaining wall, be provided with multiple anchor ropes or be anchored bar, correspondence is provided with multiple support steering structures, interfixes to form support steering structure contact beam or framework between described multiple support steering structures by reinforced concrete structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320687169.XU CN203701141U (en) | 2013-10-31 | 2013-10-31 | Retaining wall structure adopting tensile anchor cables or anchor bars with flat and inclined axes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320687169.XU CN203701141U (en) | 2013-10-31 | 2013-10-31 | Retaining wall structure adopting tensile anchor cables or anchor bars with flat and inclined axes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203701141U true CN203701141U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320687169.XU Withdrawn - After Issue CN203701141U (en) | 2013-10-31 | 2013-10-31 | Retaining wall structure adopting tensile anchor cables or anchor bars with flat and inclined axes |
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| Country | Link |
|---|---|
| CN (1) | CN203701141U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541369A (en) * | 2013-10-31 | 2014-01-29 | 张胜文 | Anchor axis flat inclined type anchorage cable (rod) retaining wall structure and construction method |
| CN107130612A (en) * | 2017-05-10 | 2017-09-05 | 广东省建筑设计研究院 | A kind of slopes reinforced construction method |
-
2013
- 2013-10-31 CN CN201320687169.XU patent/CN203701141U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541369A (en) * | 2013-10-31 | 2014-01-29 | 张胜文 | Anchor axis flat inclined type anchorage cable (rod) retaining wall structure and construction method |
| CN103541369B (en) * | 2013-10-31 | 2015-12-30 | 张胜文 | The flat inclined of anchor pulling shaft line is anchored rope or is anchored pole spacing wall construction and construction method |
| CN107130612A (en) * | 2017-05-10 | 2017-09-05 | 广东省建筑设计研究院 | A kind of slopes reinforced construction method |
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Granted publication date: 20140709 Effective date of abandoning: 20151230 |
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