CN103541369A - Anchor axis flat inclined type anchorage cable (rod) retaining wall structure and construction method - Google Patents
Anchor axis flat inclined type anchorage cable (rod) retaining wall structure and construction method Download PDFInfo
- Publication number
- CN103541369A CN103541369A CN201310534713.1A CN201310534713A CN103541369A CN 103541369 A CN103541369 A CN 103541369A CN 201310534713 A CN201310534713 A CN 201310534713A CN 103541369 A CN103541369 A CN 103541369A
- Authority
- CN
- China
- Prior art keywords
- bar
- anchor
- rope
- anchored
- retaining wall
- 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.)
- Granted
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention relates to the technical field of civil engineering and discloses an anchor axis flat inclined type anchorage cable (rod) retaining wall structure and a construction method. The retaining wall structure comprises a retaining wall vertically driven into the bottom end of a slope soil mass and an anchorage cable (rod) for anchoring and tensioning the retaining wall. An anchor hole for the anchorage cable (rod) to penetrate to be fixed is opened in the retaining wall. One end of the anchorage cable (rod) is an anchorage end inserted in the soil mass to be anchored, and the other end is an outer anchor head anchored to be retaining wall. Earth and rock are filled between the soil mass and the retaining wall and are compacted into a fill body. A support turning structure for providing turning and supporting for the anchorage cable (rod) is arranged on the soil mass surface and at a position where the anchorage cable (rod) penetrates. The anchorage cable (rod) penetrates the support turning structure to be anchored to the retaining wall, and the anchor hole and the support turning structure are in a same horizontal plane. The anchorage cable (rod) is in a horizontal state after turning, so that mechanical moving and compaction is facilitated, the linearity is good, and no potential safety hazards are left.
Description
Technical field
The present invention relates to the technical field of civil engineering, relate in particular to the flat inclined of anchor pulling shaft line and be anchored rope (bar) wall-retaining structure and job practices.
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 that retaining wall 3 is squeezed in ，Qi bottom, slope to anchor rope of the prior art (bar) retaining wall structure, then use the strip anchor rope (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 (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 (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.Traditional anchor rope (bar) although wall-retaining structure from the design, comparatively firm, in actual applications, have born technological deficiency.
In order to realize the firm of anchored end 41, at the soil body 21, first get out the hole of an inclination executing man-hour requirement, after being anchored in rope (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 (bar) 4 is also the hole that is obliquely installed to adapt to inclination.
When just starting embankment, as shown in Figure 2, embankment construction works machinery 5 carries out embankment operation in anchor rope (bar) 4 belows that tilt, now can be according to construction requirement, and embankment compacting goes out qualified filling body 22.When 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 (bar) 4, and operation is carried out in the below that cannot enter anchor rope (bar) 4.
Now have two kinds of forms of construction work, a kind of is manually to enter anchor rope (bar) 4 belows to banket, and another is shown in Fig. 3, will be anchored one end release that rope (bar) 4 connects retaining walls 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 in the engineering of the soft anchor rope (bar) 4 that steel strand make, in the process of embankment, need constantly to adjust anchor rope (bar) 4 parts that expose, fill one deck, regulate the position be once anchored rope (bar) 4, construction trouble comparatively not only, and finally in filling body 22, be anchored the virtual condition of rope (bar) 4 and the angle of designing requirement and axis and differ larger, be anchored rope (bar) 4 validity own and do not reach requirement, have safety defect.
Summary of the invention
The object of the present invention is to provide the flat inclined of anchor pulling shaft line to be anchored rope (bar) wall-retaining structure, be intended to solve in prior art, be anchored rope (bar) retaining wall complicated trouble of construct in embankment, likely leave over the problem of potential safety hazard.
The present invention realizes like this, the flat inclined of anchor pulling shaft line is anchored rope (bar) wall-retaining structure, comprise vertically squeeze into slope soil bottom retaining wall and for be anchored tension described retaining wall anchor rope (bar), on described retaining wall, offer for described anchor rope (bar) and pass fixing anchor hole, described anchor rope (bar) one end is for inserting the anchored end of described soil body anchoring, the other end is for being anchored the outer anchor head to described retaining wall, between the described soil body and described retaining wall, fill native stone and compacting becomes filling body, in described soil body surface and the position that passes in described anchor rope (bar), be provided with and be used to described anchor rope (bar) that the support that turns to and support steering structure is provided, described anchor rope (bar) is through described support steering structure, be anchored to described retaining wall, described anchor hole and described support steering structure are in same level.
Compared with prior art, in the present invention, being anchored rope (bar) turns 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 the problem that rope (bar) is interfered construction machinery, can directly by engineering machinery, carry out easily embankment operation, in filling body, be anchored rope (bar) and can keep straight eligible state, can not leave potential safety hazard.
Accompanying drawing explanation
Fig. 1 is existing anchor rope (bar) soil-baffling 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 (bar) and interfere schematic diagram;
The flat inclined of anchor pulling shaft line that Fig. 4 provides for the embodiment of the present invention is anchored the structural representation of rope (bar) wall-retaining structure;
Fig. 5 is the stressed contrast schematic diagram that the flat inclined of the anchor pulling shaft line in the embodiment of the present invention is anchored rope (bar) wall-retaining structure and existing anchor rope (bar) soil-baffling structure;
Fig. 6 is the stressed schematic diagram that the flat inclined of the anchor pulling shaft line in the embodiment of the present invention is anchored rope (bar) wall-retaining structure;
Fig. 7 is the force analysis sketch that the flat inclined of the anchor pulling shaft line in the embodiment of the present invention is anchored rope (bar) wall-retaining structure;
Fig. 8 is the support steering structure contact girder construction schematic diagram that the flat inclined of the anchor pulling shaft line in the embodiment of the present invention is anchored rope (bar) wall-retaining structure;
Fig. 9 is the protecting tube structural representation that the flat inclined of the anchor pulling shaft line in the embodiment of the present invention is anchored rope (bar) wall-retaining structure;
The second support steering structure and soil body mounting means that Figure 10 provides for the embodiment of the present invention;
The third support steering structure and soil body mounting means that Figure 11 provides for the embodiment of the present invention.
The specific embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
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 (bar) wall-retaining structure, comprise vertically squeeze into slope soil 21 bottoms retaining wall 3 and for be anchored tension retaining wall 3 anchor rope (bar) 1, on retaining wall 3, offer for being anchored rope (bar) 1 and pass fixing anchor hole 31, be anchored rope (bar) 1 one end for inserting the anchored end 11 of 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, at anchor rope (bar) 1, pass the lip-deep position of the soil body 21, be provided with and be used to anchor rope (bar) 1 that the support steering structure 12 that turns to and support is provided, be anchored rope (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, at anchor rope (bar) 1, pass on the position of the soil body 21, 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 (bar) 1, the horizontal retaining wall 3 that is connected to.In the process of construction, there will not be and be anchored rope (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 (bar) 1 in filling body 22 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 that anchor rope (bar) 1 of level, except constructability, also has the following advantages:
1) outer anchor head 13 is comparatively firm.As shown in Figure 1, in prior art, due to whole anchor rope (bar) the 4th, 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 (bar) the 4 vertical anchor power that guarantee maximum is set, 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 (bar) 4 to lose efficacy, cause potential safety hazard.And anchor rope (bar) the 4th in the present embodiment is 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 (bar) 4 in prior art, stretch-draw prestressing force need to be provided, owing to being anchored rope (bar) 4 axis and retaining wall 3 facades, there is angle, need to there is the stretch-draw face vertical with being anchored rope (bar) 4 axis, 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 (bar) 1 is more firm.As shown in Figure 5, in the filling body 22 of the soil body 21 surface constructions that tilt, exist the plane of fracture 221 tilting to barricade, in the situation that there is no retaining wall 3, filling body 22 can be from the downward slippage of the plane of fracture 221 beginning.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, 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 (bar) simultaneously.Under filling body 22 and upper load effect thereof, the body of the anchor rope (bar) at the plane of fracture 221 places is subject to larger shearing force, especially uses the anchor rope (bar) of reinforcement fabrication, easily at the plane of fracture 221 places, destroys.Anchor rope (bar) 4 of contrast prior art medium dip and the anchor rope (bar) 1 in the present embodiment, being tilted to horizontal direction anchor rope (bar) 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 (bar) that is tilted to setting can be subject to larger shearing force, is more prone to lose efficacy.So the shearing force that anchor rope (bar) 1 in the present embodiment is subject on the plane of fracture 221 is less, more firm.
3) anchoring effect can be observed when stretch-draw, when anchored force is not enough, can remedy in real time.In the present embodiment, support steering structure 12 and be anchored outside rope (bar) 1 is exposed to, when initial tensioning, can directly observe the stressed situation of change of anchored end 11, if displacement situation has surpassed 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 (bar), because of stretch-draw, stretching rear machinery cannot spreading), now being anchored rope (bar) 4, to have imbedded filling body 1～2m dark, cannot directly observe the stressed situation of change of anchored end 41, once anchored force is not enough, cannot take to increase the remedial measure of anchored force.
4) being anchored rope (bar) 1 is difficult for being damaged.In order to make to be anchored rope (bar) 1, can pass retaining wall 3, need built-in pipe on retaining wall 3 in advance, anchor rope (bar) 4 in existing barricade is 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 (bar) 4, and the mouth of pipe basil damage that often produces built-in pipe is anchored the phenomenon of rope (bar) 4.
Being anchored rope (bar) 1 is made by steel strand or reinforcing bar, supporting steering structure 12 is concrete pile or reinforced concrete pile, inside is provided with the bending steering tube passing for being anchored rope (bar) 1, and steering tube runs through support steering structure 12, and exit and anchor hole 31 are positioned at same level.
The anchor rope (bar) 1 that steel strand are made is software part, can bear larger pulling force, and position is flexible, easily traction.The anchor rope (bar) 1 that reinforcing bar is made can be made bool, bending section is positioned at and supports steering structure 12, for this anchor rope (bar) 1, support steering structure 12 inside and be provided with steering tube, be anchored rope (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 for reinforcing bar formula, be anchored rope (bar) 4 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 (bar) 1 and interfix with described support steering structure 12.
Size while in practice, needing integrated construction is selected different support steering structure 12 design schemes.Because crooked 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.And less bending angle need to support steering structure 12, there is wider thickness, 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.If need restriction in construction, support the thickness of steering structure 12, can adopt the mode of grout injection, to be anchored rope (bar) 1 is 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 (bar) 1 scheme, be anchored two sections of rod-like element that rope (bar) 1 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 (bar) 1 and is connected to respectively and supports 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 (bar) 1 height and can continues to construct with anchoring section, constructs convenient, and reliable in quality.And reinforcement rod structure itself compares 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 do to be anchored the construction of rope (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 (bar) 1 scheme, will be anchored rope (bar) 1 mode fixing with supporting steering structure 12, compare with inclination anchoring piece 4 of the prior art, larger anchored force can be provided.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 (bar) 1 in the present embodiment is 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 (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 (bar) pulling force for its force analysis; N is anchored force; The anchored force from stable region that Ea is subject to for supporting steering structure 12; Ex is for supporting the basic frictional force of steering structure 12; Ey is for supporting the foundation bearing capacity of 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 (bar) 4, when 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, can only increase the length of anchored end 41 or the length of whole anchor rope (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, by the frictional resistance that supports steering structure 12 bottoms, is provided; Ey is the power of vertical tension direction, acts directly on and supports in steering structure 12 bottom solums, by the bearing capacity of soil layer, is provided, and can support steering structure 12 floor spaces by expansion and improve bearing capacity.
As shown in Figure 4, in the present embodiment, in the lower end of supporting steering structure 12, be provided with many earth anchors 124, go for supporting steering structure 12 substrates and rub in hypodynamic geological conditions, such as Soft Soil Layer etc., improved the frictional resistance of Ex, applicability is stronger.
As shown in figure 10, the support of supporting steering structure 12 can also adopt the mode of tilt stage, places the place, bottom that supports steering structure 12 at the soil body 2, arranges to the tilted step of the soil body 2, 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 fixedly step 123, and in sphenoid 124, squeezes into the through hole of inclination, places earth anchor 124b in through hole, the fixedly rear insertion soil body 2 of step 123 is passed in earth anchor 124b one end, and the other end is placed in through hole fixing.This fixed form is comparatively firm, for supporting steering structure 12, provides larger bed knife, has increased the anchored force of anchor rope (bar) 4.Anchoring medium in the present embodiment is cement, in actual production, also can adopt other material medium, concrete for example, and it is medium that cutting stone sinks to figure.
So, in the situation that same pulling force T is provided, it is large that the anchored force N that existing oblique anchor rope (bar) 4 itself bears wants, and anchor rope (bar) 4 in the present embodiment, 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 (bar) itself bears 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 (bar) 1 for wrapping up, protecting tube 14 is arranged in filling body 22, protecting tube middle part is left for being anchored rope (bar) 1 and is passed the cavity with 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.
Owing to being anchored rope (bar) 1, need to drawing and establish in advance, then carry out embankment.And the embankment activity duration is longer, direct exposed anchor rope (bar) 1 is not only easily corroded, and may be subject to mechanical damage.After sheathed protecting tube 14, can avoid being anchored rope (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 be fixing by being anchored rope (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 (bar) 1, when filling body 22 is constructed anchor rope (bar) 1 residing height, first in anchor rope (bar) 1 lower end, put into lower tube half 142, then buckle upper tube half 141, continue construction embankment, can carry out up cal rolling embankment and also can not cause anchor rope (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 (bar) 1 meets the requirements, and get rid of air to being anchored the corrosiveness of rope (bar) 1.
The protecting tube 14 of rectangle is placed in filling body and can roll, constructability.
As shown in Figure 8, be provided with a plurality of anchor ropes (bar) 1 between the soil body 21 and retaining wall 3, correspondence is provided with a plurality of 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 a plurality of anchor ropes (bar) 1 to fix retaining wall 3, and the quantity of retaining wall 3 also may have multiaspect, in prior art, between a plurality of anchor ropes (bar), there is no association, bearing tension separately, different parts pulling force in structure is different, may cause the problem of indivedual inefficacies.In the present embodiment, a plurality of anchor ropes (bar) 1 are corresponding is provided with a plurality of support steering structures 12, anchor rope (bar) 1 as shown in Figure 1 and second is anchored rope (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 a plurality of 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 (bar) forms integral fastening power, and interconnective contact beam or framework 122 also can be subject to the anchored force from stable region, further increased anchored force.In practice of construction, can first build to manufacture and support steering structure 12, then by coupling together between a plurality of support steering structures 12 to form, support steering structure contact beam or framework 122.The shaft-like anchor rope (bar) 1 of making for reinforcing bar, also can after be anchored end 11 installations, directly build and make a plurality of support steering structures 12 and whole support steering structure contact beam or framework 122, and then another section of fixed anchoring rope (bar) 1, cost of manufacture is low, and speed of application is fast.
The present embodiment also provides job practices, 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, at pile, towards interval in filling body one side vertical axis, one or more anchor holes 31 are set, between stake, neutral gear place sets up cast-in-place or precast rc slab, forms retaining wall 3;
2) at the soil body 21, tilt and make one or more angling holes downwards, 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, will be anchored rope (bar) 1 one end and stretch in hole, grout injection fixedly becomes anchored end 11;
3) the angled orifices place step excavation passing at anchor rope (bar) 1, on step, set up to be used to be anchored rope (bar) the support steering structure 12 that turns to and support is provided, make to be anchored rope (bar) 1 through after supporting steering structure 12 and anchor hole 31 in same level;
4) from bottom between the soil body 21 and retaining wall 3, start embankment and compacting operation, in embankment operation, will be anchored rope (bar) 1 and imbed, until arrive, specify compacting height, form filling body 22.
5) in construction, concrete strength all reaches after designing requirement everywhere, through on the anchor rope (bar) 1 of anchor hole 31, corresponding anchor head 13 is being installed, and to being anchored rope (bar) 1, carries out stretch-draw, applies prestressing force;
6) continue embankment and compacting operation, will be anchored rope (bar) 1 and imbed, embankment on a row while being anchored rope (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 employing that soil layer is harder is basic compared with small size, earth anchor can be squeezed into as required in softer employing larger area basis 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 the support steering structure 12 that anchor rope (bar) 1 can be turned to and supports, it is horizontal being anchored rope (bar) 1 in treating the space of embankment, during embankment operation, do not need embankment stage by stage, only need normal embankment can complete filling body 22, and do not need release to be anchored the outer anchor head 13 of rope (bar) 1, the axis of itself meets the demands, and work progress is convenient, good engineering quality.
For comparatively large-scale engineering, a plurality of anchor ropes (bar) 1 are provided and support steering structure 12, further comprising the steps of before step 3): will between a plurality of support steering structures 12, by fluid concrete structure, to interfix, form and take support steering structure contact beam or the framework 122 that a plurality of support steering structures are node.
Supporting steering structure contact beam or framework 122 is that vertical or horizontal a plurality of support steering structures are connected into a longitudinal grade beam or horizontal grade beam with steel concrete, 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 a plurality of anchor ropes (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 comprised 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,
When embankment face reaches anchor hole 31 place horizontal plane, first free segment being anchored to rope (bar) 1 adopts painting rustproof paint, bag hemp cut, preservation fat and sleeve pipe to carry out after anti-corrosion protection, to be anchored rope (bar) 1 extends to retaining wall 3 and passes anchor hole 31 along embankment face again, the lower tube half 142 of protecting tube 14 is installed at embankment face, to be anchored rope (bar) 1 and insert lower tube half 142, insert protecting tube latch, the upper tube half of then closing 141 continues embankment;
After embankment and compacting complete, to the interior grout injection of described protecting tube 14, seal.
In order to prevent causing mechanical damage and corrosion to being anchored rope (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 (bar) 1 simultaneously.If a complete pipe box, need to be set in advance and be anchored rope (bar) 1 outside, be anchored when rope (bar) 1 is anchored to retaining wall 3 and need to be anchored with heavy pipe box, increased 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 (bar) 1 at work progress.
The flat inclined of anchor pulling shaft line in the present embodiment is anchored rope (bar) wall-retaining structure, being anchored rope (bar) 1 turns 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 (bar) 4 more anchored force, Stability Analysis of Structures.Anchor rope (bar) 1 outside in filling body 22 is 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 (bar) 1 and can not be corroded.When being provided with the situation of a plurality of anchor ropes (bar) 1, will between corresponding support steering structure 12, with reinforced concrete beam, fix, the pulling force that has disperseed anchor rope (bar) 1 to be subject to, is evenly distributed pulling force, and total is more firm, can not leave potential safety hazard.
Job practices in the present embodiment; by changing the support steering structure 12 that is anchored rope (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 (bar) 1; when protection is provided; do not affect the installation anchor that is anchored rope (bar) 1, middle part grout injection induration can prevent from being anchored rope (bar) 1 and be corroded.Directly successively cal rolling embankment, embankment job execution is easy, is anchored rope (bar) 1 axis is straight in filling body to meet the requirements, and can not depart from.Easy construction, can not leave potential safety hazard yet.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. the flat inclined of anchor pulling shaft line is anchored rope (bar) wall-retaining structure, comprise vertically squeeze into slope soil bottom retaining wall and for be anchored tension described retaining wall anchor rope (bar), on described retaining wall, offer for described anchor rope (bar) and pass fixing anchor hole, described anchor rope (bar) one end is for inserting the anchored end of described soil body anchoring, the other end is for being anchored the outer anchor head 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 the position that passes in described anchor rope (bar), be provided with and be used to described anchor rope (bar) that the support that turns to and support steering structure is provided, described anchor rope (bar) is 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 (bar) wall-retaining structure, it is characterized in that, described anchor rope (bar) is made by steel strand, described support steering structure is concrete pile or reinforced concrete pile, and inside is provided with the bending steering tube penetrating for described anchor rope (bar), 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 (bar) wall-retaining structure, it is characterized in that, described anchor rope (bar) is fixed by grout injection in described steering tube with described support steering structure.
4. the flat inclined of anchor pulling shaft line as claimed in claim 1 is anchored rope (bar) wall-retaining structure, it is characterized in that, two sections of rod-like element that described anchor rope (bar) is made for reinforcing bar, squeeze into the described soil body for one section and become described anchored end, another section of level is anchored to described retaining wall, and two sections of described anchor ropes (bar) are fastened in described support steering structure.
5. the flat inclined of anchor pulling shaft line as claimed in claim 1 is anchored rope (bar) wall-retaining structure, it is characterized in that, also comprise for wrapping up the protecting tube of described anchor rope (bar), described protecting tube is arranged in described filling body, middle part is left for described anchor rope (bar) through the cavity with 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 (bar) wall-retaining structure, 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 (bar) wall-retaining structure, it is characterized in that, between the described soil body and described retaining wall, be provided with a plurality of anchor ropes (bar), correspondence is provided with a plurality of support steering structures, interfixes to form support steering structure contact beam or framework between described a plurality of support steering structures by reinforced concrete structure.
8. job practices, for the firm filling body of constructing out between slope soil and retaining wall, is characterized in that, comprises the following steps:
1) on described slope soil, vertical pile is set up at interval, and the pile top certain altitude that bassets arranges anchor hole at pile towards interval in filling body one side vertical axis, and between stake, neutral gear place sets up cast-in-place or precast rc slab, forms retaining wall;
2) in the downward pore-creating that tilts of described slope soil, 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, will be anchored rope (bar) one end and stretch in hole, grout injection or other anchoring medium fixedly become anchored end;
3) step excavation on place, the aperture slope soil passing at anchor rope (bar), on described step, set up and be used to described anchor rope (bar) that the support that turns to and support steering structure is provided, described anchor rope (bar) through after described support steering structure with the above anchor hole of barricade in same level;
4) from bottom between described slope soil and described retaining wall, start embankment and compacting operation, in embankment, when being anchored rope (bar) height, will being anchored rope (bar) and imbedding, and pass described barricade anchor hole;
5) in embankment when being anchored rope (bar) height, and in construction everywhere concrete strength all reach after requirement, corresponding outer anchor head is installed the anchor rope (bar) through described anchor hole is upper, anchor rope (bar) is carried out to stretch-draw, apply prestressing force;
6) continue embankment and compacting operation, described anchor rope (bar) imbedded, embankment on a row while being anchored rope (bar) height, repeat above-mentioned steps 4), step 5), until arrive specified altitude assignment, form filling body.
9. job practices as claimed in claim 8, it is characterized in that, a plurality of anchor ropes (bar) are provided and support steering structure, further comprising the steps of before step 3): will between a plurality of described support steering structures, with reinforced concrete structure, to connect, and form and take the support steering structure that a plurality of support steering structures are node and contact beam or framework.
10. job practices as claimed in claim 8, is characterized in that, further comprising the steps of in step 4): the protecting tube being comprised of the lower tube half being oppositely arranged and upper tube half is provided, and described protecting tube cross section is rectangle;
When embankment face reaches described anchor hole height, first free segment being anchored to rope (bar) adopts painting rustproof paint, bag hemp cut, preservation fat and sleeve pipe to carry out after anti-corrosion protection, to be anchored rope (bar) extends to retaining wall and passes anchor hole along embankment face again, the lower tube half of described protecting tube is installed at embankment face, described anchor rope (bar) is inserted to described lower tube half, insert protecting tube latch, the upper tube half of then closing continues embankment;
After embankment and compacting complete, to grout injection in described protecting tube, seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310534713.1A CN103541369B (en) | 2013-10-31 | 2013-10-31 | The flat inclined of anchor pulling shaft line is anchored rope or is anchored pole spacing wall construction and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310534713.1A CN103541369B (en) | 2013-10-31 | 2013-10-31 | The flat inclined of anchor pulling shaft line is anchored rope or is anchored pole spacing wall construction and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103541369A true CN103541369A (en) | 2014-01-29 |
| CN103541369B CN103541369B (en) | 2015-12-30 |
Family
ID=49965195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310534713.1A Active CN103541369B (en) | 2013-10-31 | 2013-10-31 | The flat inclined of anchor pulling shaft line is anchored rope or is anchored pole spacing wall construction and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103541369B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274922A (en) * | 2015-09-11 | 2016-01-27 | 重庆大学 | Anti-slide tie-steel pipe pile composite structure for repairing cave-in roadbed and method |
| CN108603351A (en) * | 2016-02-02 | 2018-09-28 | 坦萨国际公司 | Include geotechnique's synthesis Reinfored wallboard of soil stiffener |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090096055A (en) * | 2008-03-07 | 2009-09-10 | 김성수 | Supporting structure of reinforced earth revetment by the continuous grid and the revetment construction method using the same |
| CN201512810U (en) * | 2009-06-08 | 2010-06-23 | 广东金辉华集团有限公司 | Retaining wall |
| KR20110134802A (en) * | 2010-06-09 | 2011-12-15 | 한국철도기술연구원 | Fill-up structure for back-area of rigid wall structure and construction method of the same |
| CN102352626A (en) * | 2011-10-31 | 2012-02-15 | 张继红 | Fill side slope supporting composite anchor rod and construction method thereof |
| CN202416329U (en) * | 2011-12-21 | 2012-09-05 | 中铁第四勘察设计院集团有限公司 | Retaining structure of combined reinforced soil pile wall |
| CN203113374U (en) * | 2013-02-21 | 2013-08-07 | 哈尔滨职业技术学院 | Strengthening type verdurization retaining wall |
| CN203701141U (en) * | 2013-10-31 | 2014-07-09 | 张胜文 | Retaining wall structure adopting tensile anchor cables or anchor bars with flat and inclined axes |
-
2013
- 2013-10-31 CN CN201310534713.1A patent/CN103541369B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090096055A (en) * | 2008-03-07 | 2009-09-10 | 김성수 | Supporting structure of reinforced earth revetment by the continuous grid and the revetment construction method using the same |
| CN201512810U (en) * | 2009-06-08 | 2010-06-23 | 广东金辉华集团有限公司 | Retaining wall |
| KR20110134802A (en) * | 2010-06-09 | 2011-12-15 | 한국철도기술연구원 | Fill-up structure for back-area of rigid wall structure and construction method of the same |
| CN102352626A (en) * | 2011-10-31 | 2012-02-15 | 张继红 | Fill side slope supporting composite anchor rod and construction method thereof |
| CN202416329U (en) * | 2011-12-21 | 2012-09-05 | 中铁第四勘察设计院集团有限公司 | Retaining structure of combined reinforced soil pile wall |
| CN203113374U (en) * | 2013-02-21 | 2013-08-07 | 哈尔滨职业技术学院 | Strengthening type verdurization retaining wall |
| CN203701141U (en) * | 2013-10-31 | 2014-07-09 | 张胜文 | Retaining wall structure adopting tensile anchor cables or anchor bars with flat and inclined axes |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274922A (en) * | 2015-09-11 | 2016-01-27 | 重庆大学 | Anti-slide tie-steel pipe pile composite structure for repairing cave-in roadbed and method |
| CN105274922B (en) * | 2015-09-11 | 2017-06-16 | 重庆大学 | A kind of antiskid key steel-pipe pile composite construction and method for repairing landslide roadbed |
| CN108603351A (en) * | 2016-02-02 | 2018-09-28 | 坦萨国际公司 | Include geotechnique's synthesis Reinfored wallboard of soil stiffener |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103541369B (en) | 2015-12-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106758831B (en) | Construction method of swivel continuous beam of cross-railway bridge | |
| CN103572755B (en) | Prestressed concrete prefabricated pile | |
| CN109403371A (en) | A kind of Steep Slope Embankment retaining structure and construction method | |
| CN211898463U (en) | Reinforcing device combining micro-steel pipe pile and anchor rod | |
| CN110700291A (en) | Combined retaining structure and construction method thereof | |
| CN108343077A (en) | A kind of Miniature anti-slide pile composite structure and its construction method | |
| CN107143358A (en) | Opposite-pulling anchor cable structure for controlling tunnel bias deformation and construction method thereof | |
| CN206752482U (en) | Control the combination retaining structure of biased deformation | |
| CN209368867U (en) | A kind of Steep Slope Embankment retaining structure | |
| KR100934196B1 (en) | Pressure type small pile for bearing bidirectional applied force and preventive methods for the buoyancy in construction using the same | |
| CN109403372A (en) | Abrupt slope road structure and its construction method | |
| CN108612110A (en) | A kind of Deep Foundation Pit of Metro Stations combined type construction method for supporting | |
| CN107604940A (en) | A kind of steel pipe grid Expansive Soils Retaining Wall and its construction method | |
| CN106812153A (en) | Beam and slab type construction elevator foundation construction engineering method in a kind of backfill | |
| CN109505641A (en) | A kind of soft-rock tunnel bottom plate anchor pouring reinforcement method | |
| CN107288138A (en) | The control structure and construction method of the rock side slope containing weak intercalated layer | |
| CN211421169U (en) | Fill side slope gravity type retaining wall reinforced structure | |
| CN101761088B (en) | Filling method of anchor open caisson compartment for controlling subsection cable saddle displacement of a suspension bridge | |
| CN208152057U (en) | A kind of Miniature anti-slide pile composite structure | |
| CN203701141U (en) | Retaining wall structure adopting tensile anchor cables or anchor bars with flat and inclined axes | |
| CN103541369B (en) | The flat inclined of anchor pulling shaft line is anchored rope or is anchored pole spacing wall construction and construction method | |
| CN115450250B (en) | Reinforced cement stabilized macadam retaining wall structure and construction method | |
| CN107034905A (en) | Control the combination retaining structure and its construction method of biased deformation | |
| CN206646501U (en) | A kind of tension and compression dispersion-type prestressed anchorage cable | |
| CN107587476B (en) | Wave-blocking wall with prefabricated reverse arc olecranon structure and design and construction method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |