CN204919602U - Compound anchored retaining wall by tie rods - Google Patents
Compound anchored retaining wall by tie rods Download PDFInfo
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- CN204919602U CN204919602U CN201520726688.1U CN201520726688U CN204919602U CN 204919602 U CN204919602 U CN 204919602U CN 201520726688 U CN201520726688 U CN 201520726688U CN 204919602 U CN204919602 U CN 204919602U
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- anchor
- retaining wall
- filler
- wall
- anchor cable
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Abstract
The utility model discloses a compound anchored retaining wall by tie rods, including retaining wall wall body, a plurality of anchor system and filler, wherein, pack and pack in one side of retaining wall wall body, a plurality of anchor systematic distribution couples together retaining wall wall body and filler on the not co -altitude that packs, makes the retaining wall wall body remain stable, every anchor system includes the anchor rope body, a plurality of anchor plate and grouting segment, and the anchor rope body is including fixing the anchor head on the retaining wall wall body and burying the anchor rope in the filler, and fixed a plurality of anchor plate on the every anchor rope is near one section anchor rope top casting of retaining wall wall body grouting segment. The utility model discloses a compound anchored retaining wall by tie rods, synergism that can each part of make full use of reduces to required anchor plate in the same vertical section at least, and the construction is simple and convenient, save material's advantage, has avoided poor shortcoming of a fender ability and the complicated shortcoming of anchored retaining wall by tie rods construction simultaneously again.
Description
Technical field
Utility model relates to retaining wall field, is specifically related to a kind of compound anchored plate retaining wall.
Background technology
Along with the propelling of Western Development Strategy, the high-grade highway built in western mountainous areas gets more and more, and saves the advantages such as occupation of land, side slope protection in the engineering of mountain area, carry on the back increasing use because of it.But situation about often can not meet the demands because there is resistant slide or overturning or slip resistance analysis when cantilever retaining wall and counterfort retaining wall design, needs together to use in conjunction with anchor sheet structure.Traditional anchor sheet structure is made up of jointly beam, retaining wall, anchor cable, form anchor, filler, and its loading characteristic is that filler reaches equilibrium state to the pulling force that the lateral earth pressure of retaining wall and form anchor are applied on retaining wall.But there is following defect in it: (1) due to the existence of its outer beams overall structure is shown slightly lofty, and need to need to lay polylith form anchor at same section because single form anchor makes the pulling force on retaining wall be not enough to opposing lateral earth pressure, make construction complicated and cost raising; (2) there will be in the process of anchorage cable stretching form anchor depart from installation horizontal level and on the situation moving or move down, be unfavorable for the stressed of form anchor.
Utility model content
The utility model, in order to overcome the deficiencies in the prior art, provides a kind of compound anchor to locate retaining wall and construction method thereof, and this retaining wall structure has the advantages such as the low and wide accommodation of labor and material saving, cost.
The technical solution adopted in the utility model is as follows:
A kind of compound anchored plate retaining wall, comprises retaining wall body of wall, several anchor systems and filler, wherein, filler is filled in the side of retaining wall body of wall, several anchor systems are distributed on the differing heights of filler, retaining wall body of wall and filler are coupled together, and make retaining wall body of wall keep stable; Each anchor system comprises anchor cable body, several form anchors and injecting cement paste, anchor cable body comprises the anchor head be fixed on retaining wall body of wall and the anchor cable be embedded in filler, several form anchors fixed by every root anchor cable, on one section of anchor cable of retaining wall body of wall, builds described injecting cement paste.
Preferably, described injecting cement paste comprises the sleeve pipe be linked on anchor cable, is cast in the topping of inside pipe casing and is cast in the anti-fold of jacket exterior.Injecting cement paste can available protecting anchor cable, prevents it from fractureing, and improve the application life of anchor cable, injecting cement paste can also prevent the skew of anchor cable, form anchor well, produces good positioning action to anchor cable, and can improve the intensity of anchor cable.
Preferred further, the shape of the cross section of described anti-fold is trapezoidal.
Preferably, the both sides of described form anchor are outstanding, middle indent, and during use, be vertically arranged in filler by form anchor, and outstanding both sides are horizontally disposed with, anchor cable is fixedly connected with the center of the interior recess of form anchor.The both sides of form anchor are given prominence to, and be horizontally disposed with up and down the both sides that form anchor is outstanding, can increase the active force between form anchor and filler during use, hinder form anchor to move down relative to filler, make form anchor occurred level displacement when stretch-draw.
Preferably, the size of described form anchor is identical.The words that form anchor size is identical facilitate cast in situs and prefabricated, are applicable to batch production.
Preferably, the volume of the form anchor of close anchor cable end is greater than the volume of the form anchor away from anchor cable end.Test finds that anchor cable is greater than position stressed of anchor cable away from retaining wall near the position of retaining wall stressed, so arrange the larger form anchor of volume away from the position of retaining wall, can be used for balancing larger power, the form anchor of small volume is set near the position of retaining wall, can be used for balancing less power, such reasonable distribution, can make full use of form anchor, reaches the effect of saving.
Preferably, the lower end of retaining wall body of wall is also provided with bed course.Counter for former foundation dredging filling out obtains by bed course, and because the support strength of original place base may not reach requirement, issue in the weight of retaining wall and give birth to sunken, bed course effectively can improve the enabling capabilities to retaining wall, keeps the stability of retaining wall.
Preferably, described retaining wall is cantilever retaining wall or counterfort retaining wall.
Preferably, the number of the form anchor on each anchor system is 2-5.Rationally determine the number of form anchor according to the plus load of retaining wall needs, make retaining wall more stable.
A construction method for compound anchored plate retaining wall, comprises the steps:
1) original place base is changed fill out, lay bed course, and by its compacting;
2) on bed course, carry out retaining wall to build;
3), after retaining wall builds up, roadbed filling is carried out, when the height of roadbed filling is greater than the height of the anchor system of lowest part, the pre-buried anchor cable of anti-excavation; Outside anchor cable sleeve pipe, build anti-fold, after anti-fold has been built, leave standstill sclerosis, after anti-fold sclerosis is up to standard, proceed roadbed filling; The anchor system of other At The Heights also processes by identical method;
4) after roadbed filling completes, stretch-draw is carried out to anchor system, after stretch-draw completes, in anchor cable sleeve pipe, build topping.
Preferably, step 1) in, the filler of bed course is the hard and pellet be evenly distributed of quality, is preferably medium sand or coarse sand.Filler quality is hard and be evenly distributed, and can ensure the homogeneity of the quality of bed course and the ability of anti-deformation of bed course, play enough supporting roles to retaining wall, effectively prevents sinking of retaining wall.
Preferably, step 2) in, the concrete casting method of retaining wall, comprises the steps: first to build toe of wall plate and wall heel slab, then builds breast boards; When retaining wall is counterfort retaining wall, after having built breast boards, also buttress structure will be built; Reserved anchor hole in retaining wall casting process.Reserved anchor hole can make anchor cable pass, convenient construction.
Preferably, step 3) in, when carrying out roadbed filling, in the scope of distance retaining wall 1.5m, use vibrations rammer compacter to tamp.The volume of road roller is comparatively large, comparatively heavy, in the process of compacting, likely causes damage to retaining wall, in order to prevent road roller on the impact of retaining wall, using rammer compacter to tamp, can grasp flexibly, effectively tamp.
Preferably, step 3) in, as height 25-35cm higher than anchor cable system of the height of roadbed filling, carry out instead excavating pre-buried anchor cable, preferred 30cm.Anti-excavation reserves anchor cable, can dig out the groove of definite shape, facilitates building of anti-fold, can save anti-fold mould like this, be convenient to site operation, and effectively save cost.
Preferably, step 3) in, described form anchor is cast in situs or prefabricated.
Preferably, step 3) in, described anti-fold is built by cement mortar.The general concrete words of all narrow employing of the groove excavated out because counter easily leave space, and cement bonded sand effectively can fill space, and make the anti-fold quality of building closely knit, flexural capacity is strong.
Preferably, step 3) in, after the intensity of anti-fold reaches predetermined strength 75%, carry out box cut backfill, continue to build roadbed.Carry out leaving standstill sclerosis to the anti-fold of building, test finds, after the intensity of anti-fold reaches 75% of setting intensity, backfill box cut, the impact of antagonism fold is less, anti-fold can not be made to produce deformation, can keep the effect of anti-fold better.
Preferably, step 4) in, the tension sequence of single anchor system is distally proximally stretch-draw successively, and the anchor system in same section is by carrying out stretch-draw from the bottom up, and far-end is namely away from one end of anchor head.So not only effectively can improve the efficiency of stretch-draw, the quality of stretch-draw can also be improved, make retaining wall effectively obtain the pulling force of anchor system.
Preferably, step 4) in, the injecting paste material of described topping is No. 42.5 cement pastes, and water/binder ratio is 0.4-0.6, and grouting pressure is 0.2-0.5MPa.If grouting pressure is excessive, cement paste can be made to keep off the cross section of full whole sleeve pipe, and inside sleeve pipe, have air, there is packing seal the inner side of sleeve pipe, so easily by the air compressing in sleeve pipe, compressed air hinders the carrying out of slip casting, also easily causes the uneven of slip casting.Under this slip casting condition, injecting paste material and water/binder ratio ensure that mobility and the hardening rate of slip casting slurry, and grouting pressure can ensure the uniformity of topping slip casting, make topping can fill the sleeve pipe of anchor cable.
The beneficial effects of the utility model are:
1, compound anchored plate retaining wall of the present utility model, an anchor head connects multiple form anchor, can according to the number of the distribution condition reasonable Arrangement form anchor of power and position, topping and anti-fold can available protecting anchor cables, improve its flexural capacity and resistance to tension, so the utility model can make full use of the synergy of all parts, form anchor required in same vertical section is reduced to minimum, have cantilever retaining wall or counterfort retaining wall and anchored plate retaining wall easy construction concurrently, save the advantage of material, turn avoid cantilever retaining wall and counterfort retaining wall simultaneously and prop up the shortcoming of gear ability and the complicated shortcoming of anchored plate retaining wall construction, (anchored plate retaining wall needs to bury many anchor sheet structure underground in same vertical section and needs set up outer beam outside retaining wall, the utility model does not need to set up outer beam, because much fewer than anchored plate retaining wall of the compound anchor sheet structure buried underground required for same vertical section).
2, indent, both sides projection in the middle of form anchor of the present utility model; both sides are protruding produces inhibition to form anchor motion vertically; can reduce to the displacement of form anchor during form anchor Shi Hanzhang at vertical direction; anti-fold and topping also can effectively prevent anchor cable from stretching process, upper and lower displacement occurring; the synergy of form anchor and anti-fold and topping, makes anchor cable maintain best stress.
Accompanying drawing explanation
Fig. 1 is the sectional drawing of compound anchored plate retaining wall of the present utility model;
Fig. 2 is retaining wall of the present utility model and anchor system sectional drawing;
Fig. 3 is anchor system top view of the present utility model;
Fig. 4 is the sectional drawing of anti-fold of the present utility model and topping;
Fig. 5 is anchor sheet structure schematic diagram of the present utility model;
Fig. 6 is numerical simulation form anchor displacement cloud atlas;
The schematic diagram of Fig. 7 (a) for form anchor in anchorage cable stretching process moves;
The schematic diagram that Fig. 7 (b) moves down for form anchor in anchorage cable stretching process;
Fig. 8 (a) is anchor cable tensile displacement cloud atlas after numerical simulation stretch-draw;
Fig. 8 (b) for after anchor system stretch-draw completes, the graph of a relation of anchor cable pulling force and the distance of distance retaining wall;
Fig. 9 is the asynchronous distribution schematic diagram of form anchor volume.
Wherein, 1, bed course, 2, retaining wall body of wall; 3, anchor system, 4, filler, 5, road surface; 6, the plane of fracture, 7, retaining wall breast boards, 8, retaining walls toe board; 9, retaining walls heel slab, 10, anchor cable, 11, anti-fold; 12, anchor head, 13, form anchor, 14, sleeve pipe; 15, topping, 16, reserved anchor hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is described further:
As shown in Figure 1, Figure 2 and Figure 3, a kind of compound anchored plate retaining wall, comprise retaining wall body of wall 2, several anchor systems 3 and filler 4, wherein, filler 4 is filled in the side of retaining wall body of wall 2, several anchor systems 3 are distributed on the differing heights of filler 4, retaining wall body of wall 2 and filler 4 are coupled together, and make retaining wall body of wall 2 keep stable; Each anchor system 3 comprises anchor cable body, several form anchor 13 and injecting cement pastes, anchor cable body comprises the anchor head 12 be fixed on retaining wall body of wall 2 and the anchor cable 10 be embedded in filler 4, several form anchors 13 are fixed on anchor cable 10, on one section of anchor cable 10 of retaining wall body of wall 2, build described injecting cement paste.The lower end of retaining wall body of wall is also provided with bed course.
2-4 anchor system 3 can be set at same section, 2-5 form anchor 13 can be set in each anchor system 3, total the quantity of form anchor 13 is fixed with the lock value of single anchor system 3 and the tensile load of single anchor cable.The form anchor 13 of removing anchor cable least significant end, other form anchors 13 all need to arrange reserved anchor hole 16.Retaining wall body of wall 2 comprises retaining wall breast boards 7, retaining walls toe board 8 and retaining walls heel slab 9 three part, is rigidly connected between three parts.
As shown in Figure 4, described injecting cement paste comprises the sleeve pipe 14 be linked on anchor cable 10, is cast in the topping 15 of sleeve pipe 14 inside and is cast in the anti-fold 11 of sleeve pipe 14 outside.The shape of the cross section of described anti-fold 11 is preferably wedge shape or trapezoidal, also can be other shapes.
Retaining wall can be cantilever retaining wall, also can be counterfort retaining wall.
As can be seen from Figure 6 in stretching process the displacement of form anchor not along the pure horizontal movement in anchorage cable stretching direction, but along with displacement up or down, Fig. 7 (a) and Fig. 7 (b) list respectively form anchor 13 in stretching process on two kinds of displacement modes moving and move down.Displacement is up or down there is for preventing form anchor 13 in anchorage cable stretching process, the basis of traditional form anchor is improved, as shown in Figure 5, the both sides of described form anchor 13 are outstanding, middle indent, be preferably symmetrical two prismatic table shape, during use, form anchor 13 be vertically arranged in filler 4, and outstanding both sides are horizontally disposed with, anchor cable 10 is fixedly connected with the center of the interior recess of form anchor 13.The projection of form anchor 13 both sides hinder form anchor 13 on move and move down, impel form anchor 13 to move along a straight line in stretching process.
As can be seen from Fig. 8 (a) and Fig. 8 (b), anchor system 3 is distance retaining wall body of wall 2 diverse location place after stretch-draw completes, and anchor cable pulling force size has difference, namely larger with its anchor cable pulling force of increase from retaining wall distance.
The construction method of compound anchored plate retaining wall of the present utility model, comprises the steps:
1, carry out bed course process, excavation of foundation pit, original place base changed and fills out, change filler and grating should be adopted good, scleroid pellet, with in, coarse sand as well, some rubbles can be mixed, but will be evenly distributed, after backfill, carry out abundant compacting.
2, carry out retaining wall body of wall 2 to build, retaining wall body of wall 2 adopts reinforced concrete structure, the concrete strength of retaining wall and bar diameter carry out arrangement of reinforcement by designing requirement, first build retaining walls toe board 8 and retaining walls heel slab 9, build retaining wall breast boards 7 again, when retaining wall is counterfort retaining wall, also need to build buttress structure, reserved anchor hole 16 will be set in retaining wall body of wall 2 casting process.
3, after retaining wall body of wall 2 builds up, carry out roadbed filling, road roller can not be used to carry out compacting in the scope of distance retaining wall body of wall 21.5m, small-sized vibrations rammer compacter is used to tamp, roadbed filling carries out instead excavating pre-buried anchor cable 10 and sleeve pipe 14 to during the above 30cm of anchor system 3 height of lowermost layer arranged, and builds form anchor 13 or bury prefabricated form anchor 13 underground.
4, outside sleeve pipe 14, build anti-fold 11, anti-fold 11 uses cement mortar, after having built, leave standstill sclerosis, after anti-fold 11 reaches 75% of setting intensity, carry out backfill box cut, proceed roadbed filling, when filling other anchor system 3, operate equally.
5, when having buried all anchor systems 3 underground, proceeding roadbed filling, after roadbed filling completes, stretch-draw being carried out to anchor system 3.The tension sequence of single anchor system 3 is distally (far-end is namely away from one end of anchor head 12) proximally (near-end is namely near one end of anchor head 12) stretch-draw successively; Anchor system 3 tension sequence in same section carries out stretch-draw by order from the bottom up.After anchor system stretch-draw completes, slip casting in sleeve pipe 14, cast topping 15, and outer anchor head protection is carried out to anchor head 12.Injecting paste material adopts No. 42.5 cement pastes, and water/binder ratio adopts 0.5, grouting pressure 0.2-0.5MPa.
When carrying out cantilever retaining wall or counterfort retaining wall design, when the performances such as retaining wall body of wall 2 overturning or slip resistance analysis or resistant slide can not meet the demands, need apply extra load to retaining wall body of wall 2 and make retaining wall body of wall 2 reach balance.Now the required moment applied of barricade balance is constant, can determine to bury the height of anchor system 3 and total lock value of single anchor system 3 underground.The extra load be applied on retaining wall body of wall 2 can load in the following manner:
1, can bury anchor system 3 underground at same section differing heights, the quantity of anchor cable system can change, depending on the quantity of condition of construction determination anchor system 3 by changing the lock value of single anchor cable system.
2, can by changing the size of form anchor 13, the power that the form anchor 13 due to near-end is born is less than the power that far-end form anchor 13 carries, and can reduce the size of near-end form anchor 13, as shown in Figure 9.
3, can adjust the pulling force in anchor system on single anchor cable 10 and change the quantity of form anchor 13, the quantity of form anchor 13 is floated between 2-5, and the ultimate pullout capacity depending on form anchor 13 is determined.
By reference to the accompanying drawings detailed description of the invention of the present utility model is described although above-mentioned; but the restriction not to utility model protection scope; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still in protection domain of the present utility model.
Claims (5)
1. a compound anchored plate retaining wall, it is characterized in that: comprise retaining wall body of wall, several anchor systems and filler, wherein, filler is filled in the side of retaining wall body of wall, several anchor systems are distributed on the differing heights of filler, retaining wall body of wall and filler are coupled together, makes retaining wall body of wall keep stable; Each anchor system comprises anchor cable body, several form anchors and injecting cement paste, anchor cable body comprises the anchor head be fixed on retaining wall body of wall and the anchor cable be embedded in filler, several form anchors fixed by every root anchor cable, on one section of anchor cable of retaining wall body of wall, builds described injecting cement paste.
2. compound anchored plate retaining wall according to claim 1, is characterized in that: described injecting cement paste comprises the sleeve pipe be linked on anchor cable, is cast in the topping of inside pipe casing and is cast in the anti-fold of jacket exterior.
3. compound anchored plate retaining wall according to claim 2, is characterized in that: the shape of the cross section of described anti-fold is wedge shape.
4. compound anchored plate retaining wall according to claim 1, it is characterized in that: the both sides of described form anchor are outstanding, middle indent, during use, are vertically arranged in filler by form anchor, and outstanding both sides are horizontally disposed with, anchor cable is fixedly connected with the center of the interior recess of form anchor.
5. compound anchored plate retaining wall according to claim 1, is characterized in that: the volume near the form anchor of anchor cable end is greater than the volume of the form anchor away from anchor cable end, and the number of the form anchor on each anchor system is 2-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520726688.1U CN204919602U (en) | 2015-09-18 | 2015-09-18 | Compound anchored retaining wall by tie rods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520726688.1U CN204919602U (en) | 2015-09-18 | 2015-09-18 | Compound anchored retaining wall by tie rods |
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| Publication Number | Publication Date |
|---|---|
| CN204919602U true CN204919602U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520726688.1U Expired - Fee Related CN204919602U (en) | 2015-09-18 | 2015-09-18 | Compound anchored retaining wall by tie rods |
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| CN (1) | CN204919602U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201011A (en) * | 2015-09-18 | 2015-12-30 | 山东大学 | Complex anchored-plate retaining wall and construction method thereof |
| CN106522269A (en) * | 2016-12-22 | 2017-03-22 | 盐城工学院 | Retaining wall and slope support system |
| CN107700524A (en) * | 2017-09-29 | 2018-02-16 | 南京联众建设工程技术有限公司 | Corrugated sheet steel formula retaining wall |
| CN110117965A (en) * | 2018-02-07 | 2019-08-13 | 山东大学 | A kind of pin-connected panel anchor draws retaining wall and method |
-
2015
- 2015-09-18 CN CN201520726688.1U patent/CN204919602U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201011A (en) * | 2015-09-18 | 2015-12-30 | 山东大学 | Complex anchored-plate retaining wall and construction method thereof |
| CN105201011B (en) * | 2015-09-18 | 2017-07-25 | 山东大学 | A kind of compound anchored plate retaining wall and its construction method |
| CN106522269A (en) * | 2016-12-22 | 2017-03-22 | 盐城工学院 | Retaining wall and slope support system |
| CN107700524A (en) * | 2017-09-29 | 2018-02-16 | 南京联众建设工程技术有限公司 | Corrugated sheet steel formula retaining wall |
| CN110117965A (en) * | 2018-02-07 | 2019-08-13 | 山东大学 | A kind of pin-connected panel anchor draws retaining wall and method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20160918 |
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| CF01 | Termination of patent right due to non-payment of annual fee |