CN1908322A - Anchor bolt containing framework in grouting and construction method thereof - Google Patents
Anchor bolt containing framework in grouting and construction method thereof Download PDFInfo
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- CN1908322A CN1908322A CN 200610061973 CN200610061973A CN1908322A CN 1908322 A CN1908322 A CN 1908322A CN 200610061973 CN200610061973 CN 200610061973 CN 200610061973 A CN200610061973 A CN 200610061973A CN 1908322 A CN1908322 A CN 1908322A
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Abstract
The invention relates to an anchor rod with skeleton of pour element, wherein it comprises: an anchor rod inside the anchor hole and the slurry poured into said anchor hole; it is characterized in that: the anchor rod is surrounded by the skeleton whose center is the rod; the slurry poured into said anchor hole is penetrated into said skeleton to combine the skeleton into the slurry element; and the construction method comprises: arranging the skeleton on the anchor rod; inserting the anchor rod into anchor hole; then pouring slurry into the anchor hole, to combine the skeleton and the slurry; when the slurry is solidified, the slurry element with skeleton is formed, to surround the anchor rod. The invention has long service life, and high strength of slurry element.
Description
[technical field]
The present invention relates to soil layer or geotechnics foundation and slope retaining field, be specifically related to the improvement of anchor rod body and injecting cement paste, be mainly used in geotechnical engineering, foundation ditch, side slope, water conservancy, traffic, mine, harbour platform and engineering fields such as basis, basement anti-floating and pile test, tension and compression composite pile resistance to plucking.
[background technology]
Anchoring is that anchor pole one end with tension is fixed in the rock stratum or soil layer of side slope or ground, the other end and works connect, utilize anchored force to bear because soil pressure, water pressure or that wind-force was applied and thrust works, thereby keep stablizing of works.Grouted rock bolt be with cement paste (comprising cement mortar) with one group of rod anchor in the boring of stretching to inside, stratum, and bear pulling force in the outer end, its center part in tension is a pull bar, the pulling force that is born at first is delivered in the injecting cement paste by the bond stress of pull bar periphery, and the frictional resistance by injecting cement paste periphery stratum is delivered in the good ground of anchorage zone then.In the construction, general first pore-forming, system anchor place anchor rod body in the anchor hole then, and grouting is finished again.Because anchor rod body has certain length and weight; cast anchor and filling process in; the body of rod generally can depart from the anchor hole middle position; and touch mutually with the anchor hole hole wall; caused the anchor rod body shift phenomenon, made slurry even the topping became uneven of anchor rod body, in addition have do not have topping fully; itself and anchor hole hole wall also can not get well-bonded, thereby have reduced the extraction-resistant behavior of anchor pole.Simultaneously, anchor pole is easy to be subjected to the corrosion of stratum media and is destroyed, influences application life.And do not have the cement class injecting cement paste intensity of skeleton low, especially tensile strength is low, and is easy to crack, influenced the uplift resistance and the durable antiseptic property of anchor pole.
At present, employing adds the bracing frame mode on anchor rod body, general bracing frame distribution distance is about 1.5 meters, the local body of rod beyond the bracing frame is skew easily also, and when placing loose soil layer, because bracing frame and soil layer are the some way of contact, its support body top can penetrate in the soil layer, can cause the skew of anchor rod body in anchor hole equally.
[summary of the invention]
Technical problem to be solved by this invention is, overcome the defective that at present existing anchor pole application life is short, anti-corrosive properties are poor, injecting cement paste intensity is low, uplift resistance is little, provide a kind of simple and practical, uplift resistance is strong, the injecting cement paste that anti-corrosive durability is good contains the job practices of anchor pole and this anchor pole of skeleton.
Technical scheme proposed by the invention is:
A kind of injecting cement paste contains the anchor pole of skeleton, comprise and place the interior anchor rod body of anchor hole and be poured into the interior injecting cement paste of described anchor hole, it is characterized in that: outside described anchor rod body, around being surrounded by with the body of rod is the frame member at center, is poured into the interior slurries of anchor hole during construction and combines the injecting cement paste that solidify out into contains skeleton thoroughly in described frame member and with frame member.
Described frame member can be the reticular component that is coated on the anchor rod body, or for being placed in the penetrating or with holes sleeve of sidewall on the anchor rod body, or circular boop shape or helical form member for being wound in the anchor rod body external surface;
Described frame member radial thickness be 10～20mm or more than;
Wherein:
Described reticular component be for can hold the net sheet that grouting serous fluid penetrates, permeates, or is formed by stacking for multilayer net sheet, or for the stereoscopic graticule sheet of thickness is arranged;
The net sheet formation that described sleeve lateral wall sees through for holding grouting serous fluid, or be multilayer net chip architecture, or for the space network of thickness is arranged.
As a further improvement on the present invention:
Described sleeve or reticular component sectional are arranged and are provided with;
Described reticular component or sleeve outer surface can have projection or surface to be corrugated;
Can be provided with the antiseepage member between described frame member and the anchor rod body.
Described anchor rod body tail end also can be provided with a brace table.
The anchor rod construction method of being made up of said structure comprises boring, system anchor, grouting step, it is characterized in that: in described system anchor step, frame member is arranged on the anchor rod body, after system anchor step was finished, the anchor rod body that will have frame member was again inserted in the anchor hole, then reperfusion serosity in anchor hole, make slurries adhesive bond in frame member and the hole, after the slurry consolidation, form the injecting cement paste of band frame member, be surrounded on around the anchor rod body.
The present invention has following technique effect:
1) be the cage construction at center owing to the present invention is surrounded with outside anchor rod body with the body of rod, can make anchor pole behind grouting construction, be in injecting cement paste anchor hole centre position all the time, avoid or reduced the shift phenomenon of anchor rod body in anchor hole in the prior art, can make the body of rod obtain the protective layer thickness of a minimum, reduced the erosion of underground water and other media to anchor rod body, improve the durability of anchor pole, realized the permanent barrier propterty of anchor pole;
2) the present invention thereby has strengthened the mechanical strength of injecting cement paste, especially tensile strength greatly owing to contain cage construction in the injecting cement paste, has improved anti-pulling of anchor bar, reduces or has avoided injecting cement paste tension cracking resistance phenomenon;
3) owing to be surrounded with cage construction on the anchor rod body, and this cage construction combines with injecting cement paste again, can make anchor rod body constitute whole tensional element with above-mentioned injecting cement paste, improved the stress of anchor rod body and injecting cement paste, active force between the body of rod and the injecting cement paste reduces, avoid stress to concentrate, reduced the bond stress requirement between the body of rod and the injecting cement paste, improved the anchored force of anchor pole;
4) the present invention also includes an antiseepage member in injecting cement paste, and anchor rod body and soil layer are isolated comprehensively, prevents that the infiltration of underground water or other media from making the anchor rod body corrosion, has further improved the antiseptic property of anchor pole;
5) when adopting metal material to surround anchor rod body, can shield the corrosion of formation currents to the body of rod as cage construction.
[description of drawings]
Fig. 1 is the embodiment of the invention one structural representation;
Fig. 2 is the A-A view of Fig. 1 of the present invention;
Fig. 3 is the plane net sheet schematic diagram of the embodiment of the invention one;
Fig. 4 is the corrugated net chip module structural representation of the embodiment of the invention one;
Fig. 5 is the embodiment of the invention two anchor pole modular construction schematic diagrames;
Fig. 6 is another structural representation of the embodiment of the invention two anchor pole assemblies;
Fig. 7 is the embodiment of the invention three structural representations;
Fig. 8 is the embodiment of the invention four structural representations.
Among the figure:
The 1-anchor rod body; The 2-fixture; The 3-anchor hole;
The 4-reticular component; 41-plane net sheet; 42-corrugated net sheet;
The 5-injecting cement paste; The 6-sleeve; The 7-parting bead;
8-helical form member; The 9-locator; The 10-brace table;
The 11-anchoring section; The free section of 12-; The 13-screw;
14-antiseepage member.
[specific embodiment]
At present, in the base pit engineering of high-rise building, underground railway, dock, harbour, underground construction, be extensive use of bolt support.But because stratum inner tissue complex structure, the infiltration of water and other media is easy to cause the corrosion to anchor pole, thus the application life that can reduce anchor pole, and simultaneously, the frictional resistance between shank member and the stratum also is the deciding factor of decision anchor pole functional performance.Therefore, how effectively to improve anti-pulling of anchor bar and prevent the corrosion of anchor rod body, to provide anchor pole permanent supporting, be the major subjects of those skilled in the art's research always.In the prior art, anchor rod body all is to insert fixing by adopting with the ground inclination mode, fill the formation injecting cement paste with slurry (as lime mortar, cement paste, sandstone slurry, chemical grouting material or other settable slurries) between anchor rod body and the anchor hole, to improve the physico-mechanical properties of ground, improve its anchored force.In theory, anchor rod body generally should be in the anchor hole middle position, the injecting cement paste after the grouting is fully surrounded, and have homogeneous thickness, could realize above-mentioned effect preferably.But; because anchor rod body has certain weight; be easy to cause anchor pole to touch mutually with hole wall during grouting, and anchor hole is dark more, this phenomenon is serious more; its result can make anchor pole directly contact with soil layer; the main part of the force of anchor pole--anchoring section fails to be protected effectively, like this, is easy to cause the erosion to stressed section of anchor pole of underground water or other media; not only reduced the application life of anchor pole, and anti-pulling of anchor bar and and injecting cement paste between bond stress also reduce greatly.
The present invention is directed to the concrete improvement that above-mentioned defective done is; on anchor rod body; being provided with the body of rod around the encirclement body of rod is the frame member at center; this frame member both can be used as the supporting of anchor rod body when placing in the anchor hole; make it be in the anchor hole centre position all the time; be poured into the interior cement paste of anchor hole during simultaneously owing to construction; mortar; slurries such as sandstone cement mixing slurry or chemical grouting material can be thoroughly in frame member; and combine with frame member; be frozen into the injecting cement paste that contains skeleton; be bonded in around the anchor rod body; formed anchor rod body evenly; the reliable protection layer; and owing to injecting cement paste can fully combine with soil layer or rock stratum; and have certain thickness, also prevent effectively or reduced the cracking of injecting cement paste and the infiltration phenomenon that causes, improved the cracking resistance and the impervious ability of injecting cement paste.In addition; because anchor pole links to each other with injecting cement paste by guard member; can constitute whole tension part; thereby changed the stress of anchoring piece; relative pulling force between anchor rod body and the injecting cement paste is significantly reduced; can on the body of rod, brush any anticorrosive paint, and can be because of frictional force between its surface and the injecting cement paste reduce to make the corresponding influence that reduces to bring to uplift resistance of its bond stress.
The present invention will be further described below in conjunction with embodiment.
Embodiment one:
As Fig. 1, shown in Figure 2, the present invention is by anchor rod body 1, being poured into the injecting cement paste 5 and the rock bolt head fixture 2 that are bonded in after anchor hole 3 interior slurries solidify on the anchor rod body constitutes, wherein anchor rod body 1 is divided into anchoring section 11 and free section 12, all place in the anchor hole 3, present embodiment is on the anchoring section 11 of described anchor rod body 1, be coated with reticular component 4, with as around the frame member that surrounds anchor rod body 1, this reticular component 4 is a screen net structure, can be plane net sheet 41 as shown in Figure 3, this net sheet can be a wire, the plastics silk constitutes, or constitute by other materials, can form by the sheet multilayer build-up during construction, form a multilayer net chip architecture, also can be the multilayer net chip architecture that repeats to be entwined with a fourdrinier wire sheet, make it be attached to surface outside anchor rod anchored section 11 by iron wire bundle hoop or other fastening means; Described reticular component 4 can also be to have certain thickness space network.Above-mentioned reticular component 4 formed frame members along anchor rod body 1 external surface radial thickness be 10～20mm or more than; mesh aperture on it fully passes through in the time of can holding solidified slurry or the cast of its mixture; infiltration; the slurry that injects in the time of can pouring into a mould with construction combines; solidify the injecting cement paste 5 that back formation one contains mesh skeleton; this structure is in anchor rod body 1 places anchor hole 3 time; because the coating of reticular component 4 on the anchoring section 11; therefore; no matter can make anchor rod body 1 be in placing anchor hole 3 time or the grouting cast after; always be in anchor hole 3 middle positions; and on the reticular component 4 because the existence of mesh; slurry during cast is easy to infiltrate each space in it; and can fill up above-mentioned space; make mesh skeleton combine the injecting cement paste 5 that forms the band skeleton with slurry; evenly be wrapped in anchor rod anchored section 11 periphery, form complete anchor rod body 1 topping, thereby realized purpose of the present invention.
When anchor rod body 1 length is longer, the also segmentation setting as required of above-mentioned reticular component 4, in the time of can guaranteeing anchor rod body 1 construction and construction be placed on anchor hole 3 centre positions, can also be used with existing support (isolating frame) simultaneously, this mode has also been brought the convenience of reticular component 4 when being coated on the body of rod.
As shown in Figure 4, net sheet of the present invention surface vertically also can be provided with projection or be corrugated net sheet 42 along anchor rod body 1, the net sheet of this shape can bond with slurry better, prevent injecting cement paste 5 crackings, increase the longitudinal frictional force between reticular component 4 and the injecting cement paste 5 simultaneously, further improved the bond stress of injecting cement paste 5.
The concrete job practices of said structure anchor pole is:
1) boring: on soil layer or rock, get out anchor hole 3 with rig according to designing requirement;
2) system anchor: plane net sheet 41 or corrugated net sheet 42 are coated on anchor rod anchored section 11 external surface, and the net sheet can be the monolithic of continuous length, adopt to repeat the parcel form, but also layering parcel, make its radial thickness be 10～20mm or more than.Tie with iron wire or plastics silk after parcel finishes,, the net sheet can be divided into two sections or three sections and be wrapped on the anchor rod body 1 if anchor rod body 1 is longer;
3) grouting: after system anchor step is finished, the anchor rod body 1 that will be coated with above-mentioned net sheet frame member is inserted in the anchor hole 3, casting cement slurry, mortar, sandstone cement mixing are starched or chemical grout in anchor hole 3 then, need allocate parameters such as suitable concentration of slurry and gravel size proportioning during slip casting, so that slurry is fully thoroughly in reticular component 4, and fill up all spaces in the anchor hole, and treat can form after it solidifies and contain the injecting cement paste 5 of reticular component 4 as frame member, be surrounded on around the anchor rod body.
Need to prove, in construction, also can be earlier grouting in anchor hole 3, and then the body of rod that will have an above-mentioned reticular component 4 is put into anchor hole 3.
Embodiment two:
Present embodiment anchor rod body 1, injecting cement paste 5 and rock bolt head fixture 2 are identical with embodiment one, as shown in Figure 5, different is: on the anchoring section 11 of described anchor rod body 1, be equipped with and have certain thickness sleeve 6, with as around the frame member that surrounds anchor rod body 1, this sleeve 6 can be the penetrating shape of sidewall, or on sleeve wall, be covered with some penetrating holes, by screw 13 the welding or other connected modes be fixed on the anchor rod body 1, aperture, penetrating hole can hold grouting serous fluid and fully passes through on it, infiltration, the slurry that sleeve 6 and when construction are injected combines, and is frozen into one and does the injecting cement paste 5 of skeleton with sleeve 6.
Described sleeve 6 sidewalls also can be designed to and can hold the net sheet formation that grouting serous fluid sees through, or be the cylindrical body that multilayer net chip architecture constitutes, or the cylindrical body that constitutes for the space network that thickness is arranged, cylindrical body also can adopt colligation or utilize mode such as isolating frame to be installed on the anchor rod body 1.By sleeve 6 formed frame members along anchor rod body 1 external surface radial thickness should be 10～20mm or more than,, sleeve 6 layerings can be formed by stacking so that anchor rod body 1 is positioned at its middle position after placing anchor hole 3 when sleeve 6 thickness deficiencies, fix with connector.Described sleeve 6 is gone back the sectional setting, like this, can guarantee anchor rod body 1 when grouting construction and construction be placed on anchor hole 3 centre positions, simultaneously also saved cost of production, and sleeve 6 is very convenient when being installed on anchor rod body 1.
As shown in Figure 6, between described sleeve 6 and the anchor rod body 1 certain clearance can be arranged, middle isolate with parting bead 7 or other objects, it also can be 2～4 arc pieces and is combined into cylinder-shapedly, is coated on around the anchor rod body 1, fixes with bolt or welding or other connectors.
For guaranteeing that sleeve 6 combines with slurry is better,, projection can be processed with or the surface is corrugated at above-mentioned sleeve 6 external surfaces.
The concrete job practices of said structure anchor pole is:
1) boring: on soil layer or rock, get out anchor hole 3 with rig according to designing requirement;
2) system anchor: sleeve 6 is placed on anchor rod anchored section 11,, can be divided into two sections or multistage if anchor rod body 1 is longer.
3) grouting: after system anchor step is finished, the anchor rod body 1 that will be with above-mentioned sleeve 6 is inserted in the anchor hole 3, casting cement slurry, mortar, sandstone cement mixing slurry or chemical grouting material in anchor hole 3, need allocate parameters such as suitable concentration of slurry and gravel size proportioning during slip casting, slurry is fully penetrated in the penetrating hole of offering on its sleeve 6, and fill up each space, treating can form after it solidifies one is the injecting cement paste 5 of cage construction with sleeve 6, is surrounded on around the anchor rod body 1.
In addition, in construction, also can be earlier grouting in anchor hole 3, and then the body of rod that will be with above-mentioned sleeve 6 is inserted in the anchor hole 3.
Embodiment three:
Present embodiment anchor rod body 1, injecting cement paste 5 and rock bolt head fixture 2 are identical with embodiment one, two, as shown in Figure 7, different is: on the anchoring section 11 of described anchor rod body 1, be surrounded with a helical form member 8, with as around the frame member that surrounds anchor rod body 1, helical form member 8 can be fixed in anchor rod body 1 external surface by welding or connector, isolating frame or locator 9 also can be set in order to the location on anchor rod body 1, isolating frame or locator 9 can be taked welding or with the fixed form of connector.The radius value of helical form member 8 should guarantee that anchor rod body 1 can pass and formed frame member along anchor rod body 1 external surface radial thickness should be 10～20mm or more than.In the time of in anchor rod body 1 places anchor hole 3, helical form member 8 can make anchor rod body 1 be positioned at anchor hole 3 centre positions all the time when grouting construction and after the construction, has avoided the skew of anchor rod body 1.Simultaneously, the skeleton body that this structure constitutes is more sturdy, and the permeability of slurry is very good during grouting, when anchor rod body 1 diameter is little, the coil spring shape standard component that can adopt machine-shaping is as helical form member 8, very simple, both guaranteed the Forming Quality and the bond stress of injecting cement paste 5, can improve the extraction-resistant behavior of anchor pole equally.
The concrete job practices of said structure anchor pole is:
1) boring: on soil layer or rock, get out anchor hole 3 with rig according to designing requirement;
2) system anchor: isolating frame or locator 9 are fixed in anchor rod anchored section 11 external surface, then helical form member 8 are placed on the anchor rod body 1;
3) grouting: after system anchor step is finished, the anchor rod body 1 that will be with above-mentioned helical form member 8 is inserted in the anchor hole 3, casting cement slurry, mortar, sandstone cement mixing slurry or chemical grouting material in anchor hole 3, need allocate parameters such as suitable concentration of slurry and gravel size proportioning during slip casting, slurry is fully penetrated in the penetrating hole of offering on its sleeve 6, and fill up each space, treating can form after it solidifies one is the injecting cement paste 5 of cage construction with helical form member 8, is surrounded on around the anchor rod body 1.
In addition, in construction, also can be earlier grouting in anchor hole 3, and then the body of rod that will be with above-mentioned helical form member 8 is inserted in the anchor hole 3.
Embodiment four:
Present embodiment anchor rod body 1, injecting cement paste 5 and rock bolt head fixture 2 are identical with embodiment one, two, three, as shown in Figure 8, different is: present embodiment is between frame member and anchor rod body 1, be provided with antiseepage member 14, this antiseepage member 14 can be antiseepage cloth or bellows, be surrounded on around the anchor rod body 1, form an isolation barrier, when in the anchor pole use, having some position injecting cement paste 5 and cracking, antiseepage member 14 still can be isolated underground water or other medium effectively, prevent that it from infiltrating, and can realize the durable anticorrosion of anchor pole better.Simultaneously, can between anchor rod body 1 surface and antiseepage member 14, leave suitable gap,, anchor rod body 1 be combined with injecting cement paste 5 so that slurries can inject and be penetrated between anchor rod body 1 and the antiseepage member 14.
Above-mentioned antiseepage member 14 also can be located at (the present embodiment frame member is illustrated as reticular component 4) among the frame member, does alternately to arrange, and can further prevent the infiltration to anchor rod body 1 of underground water and other medium equally.Simultaneously, antiseepage member 14 can also constitute the compound frame member that is surrounded on anchor rod body 1 with above-mentioned two members.
Because the effect of frame member, improve the stress between anchor rod body 1 and the injecting cement paste 5, therefore, added the too big reduction that antiseepage member 14 can not cause anti-pulling of anchor bar, certainly, adopt rough surface or along anchor rod body 1 axial antiseepage member better effects if in wave shape.
The concrete job practices of said structure anchor pole is:
1) boring: on soil layer or rock, get out anchor hole 3 with rig according to designing requirement;
2) system anchor: antiseepage member 14 is coated on anchor rod anchored section 11 external surface, and then frame member is surrounded on the antiseepage member 14, also can earlier the first floor frame member be surrounded on the anchor rod body 1, coat antiseepage member 14 then thereon, again the second layer or the above frame member of the second layer are coated antiseepage member 14, make its radial thickness be 10～20mm or more than, the frame member parcel back that finishes is fixing;
3) grouting: the anchor rod body 1 that will be with above-mentioned compound frame member is inserted in the anchor hole 3, casting cement slurry, mortar, sandstone cement mixing slurry or chemical grouting material in anchor hole 3, need allocate parameters such as suitable concentration of slurry and gravel size proportioning during slip casting, slurry is fully penetrated in its gap, treat to form after it solidifies a injecting cement paste 5 to have antiseepage member 14 and frame member, be surrounded on around the anchor rod body 1.
Because the infiltration of 14 pairs of grouting serous fluids of antiseepage member and flow certain influence is arranged, hollowing appears in anchor hole 3, should carefully operate during slip casting, preferably a Grouting Pipe is placed in the space between antiseepage member 14 and the anchor rod body 1 and begins slip casting again, make slurries be full of space between antiseepage member 14 and the anchor rod body 1, the space slip casting between antiseepage member 14 and anchor hole hole wall more earlier.
In the various embodiments described above, because injecting cement paste 5 and the whole tension member of anchor rod body 1 common formation, therefore, anchor rod body 1, require relative with the frictional force between the injecting cement paste 5 of frame member are reduced, therefore, the present invention all does conventional preservative treatment at anchor rod body 1 and other members such as cage construction surface, can not influence the bond stress between anchor pole and the injecting cement paste 5, and the anchor pole antiseptic property can further be provided, guarantee the durable use of anchor pole.
In addition, in the foregoing description, the present invention is provided with a brace table 10 at described anchor rod body 1 tail end, and this brace table 10 is mainly used in the location of anchor rod body 1 in anchor hole, also can be used as the support of frame member simultaneously, and improves the stress of anchoring body.
The present invention goes for the anchor pole that rod body material is various materials such as reinforcing bar, steel strand (being commonly called as anchor cable), engineering plastics.To the anchor pole of many steel strand, above-mentioned frame member can be separately positioned on each root steel strand, also can around the whole body of rod frame member be set again with behind the many steel strand composition anchor rod bodies.
The present invention can also be applicable to the anchor pole that does not have free section, at this moment, only needs and will all get final product around frame member is set in the anchor rod body length range.
The present invention can also be suitable for soil nailing, promptly gets final product around skeleton is set at the soil nailing body of rod.
Claims (10)
1, a kind of injecting cement paste contains the anchor pole of skeleton, comprise and place the interior anchor rod body of anchor hole and be poured into the interior injecting cement paste of described anchor hole, it is characterized in that: outside described anchor rod body, around being surrounded by with the body of rod is the frame member at center, is poured into the interior slurries of anchor hole during construction and combines the injecting cement paste that solidify out into contains skeleton thoroughly in described frame member and with frame member.
2, injecting cement paste according to claim 1 contains the anchor pole of skeleton, it is characterized in that: described frame member is for being coated on the reticular component on the anchor rod body, or for being placed in the penetrating or with holes sleeve of sidewall on the anchor rod body, or circular boop shape or helical form member for being wound in the anchor rod body external surface.
3, injecting cement paste according to claim 1 and 2 contains the anchor pole of skeleton, it is characterized in that: described frame member radial thickness be 10～20mm or more than.
4, injecting cement paste according to claim 2 contains the anchor pole of skeleton, it is characterized in that: described reticular component be for can hold the net sheet that grouting serous fluid penetrates, permeates, or is formed by stacking for multilayer net sheet, or for the stereoscopic graticule sheet of thickness is arranged.
5, injecting cement paste according to claim 2 contains the anchor pole of skeleton, it is characterized in that: the net sheet formation that described sleeve lateral wall sees through for holding grouting serous fluid, or be multilayer net chip architecture, or for the space network of thickness is arranged.
6, contain the anchor pole of skeleton according to claim 2 or 4 or 5 described injecting cement pastes, it is characterized in that: described sleeve or reticular component segmentation are arranged and are provided with.
7, contain the anchor pole of skeleton according to claim 2 or 4 or 5 described injecting cement pastes, it is characterized in that: described reticular component or sleeve outer surface have projection or surface to be corrugated.
8, contain the anchor pole of skeleton according to any described injecting cement paste in the claim 1,2,4,5, it is characterized in that: be provided with the antiseepage member between described frame member and the anchor rod body.
9, injecting cement paste according to claim 1 and 2 contains the anchor pole of skeleton, it is characterized in that: described anchor rod body tail end is provided with a brace table.
10, a kind of injecting cement paste contains the anchor rod construction method of skeleton, comprise: boring, system anchor, grouting step, it is characterized in that: in described system anchor step, frame member is arranged on the anchor rod body, after system anchor step is finished, the anchor rod body that will have frame member is again inserted in the anchor hole, reperfusion serosity in anchor hole makes slurries adhesive bond in frame member and the hole, after the slurry consolidation then, form the injecting cement paste of band frame member, be surrounded on around the anchor rod body.
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|---|---|---|---|
| CN 200610061973 CN1908322A (en) | 2006-08-04 | 2006-08-04 | Anchor bolt containing framework in grouting and construction method thereof |
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|---|---|---|---|
| CN 200610061973 CN1908322A (en) | 2006-08-04 | 2006-08-04 | Anchor bolt containing framework in grouting and construction method thereof |
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| CN1908322A true CN1908322A (en) | 2007-02-07 |
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2006
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| CN105201525B (en) * | 2015-10-19 | 2017-09-12 | 河南理工大学 | A kind of recoverable preventing and treating pucking method |
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