CN105821730A - Temporary support structure for quick widening of site and construction method thereof - Google Patents
Temporary support structure for quick widening of site and construction method thereof Download PDFInfo
- Publication number
- CN105821730A CN105821730A CN201610316678.XA CN201610316678A CN105821730A CN 105821730 A CN105821730 A CN 105821730A CN 201610316678 A CN201610316678 A CN 201610316678A CN 105821730 A CN105821730 A CN 105821730A
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- Prior art keywords
- reinforcing bar
- anchor pole
- temporary support
- bar
- support structures
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/30—Miscellaneous comprising anchoring details
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a temporary support structure for quick widening of a site and a construction method thereof. The temporary support structure comprises anchor rods, a concrete pavement, sandbags, a bar-mat reinforcement, rebar claws and rebar hooks, wherein the slope body sections of the multiple anchor rods are horizontally inserted into the slope body of a protolith slope at equal intervals to be fixed, the multiple rebar claws are connected to the two sides of a protruding-section rebar of each anchor rod at equal intervals, the sandbags filled with gravel are arranged on the rebar claws in a penetrated mode, the tail ends of the protruding sections of the anchor rods are connected through the bar-mat reinforcement, gaps between the anchor rods and the sandbags are filled with gravel soil, and the bar-mat reinforcement is sprayed with the concrete pavement. A main support structure is formed by the anchor rods and transverse rebars and filled with the sandbags and gravel soil, the temporary support structure capable of achieving quick supporting and widening is obtained, construction period can be shortened, and construction cost can be reduced.
Description
Technical field
The present invention relates to Geotechnical Engineering field, the engineering such as civil building, highway, railway is quickly widened for rock matter place, particularly relates to a kind of be applied to temporary support structures and the construction method thereof that place is quickly widened.
Background technology
At present, development along with engineering construction, build more and more higher, increasing, all kinds of engineering grounds are the most increasing, but are often restricted in construction operation region at Po Dingchu, and people's scope of living suffers restraints, emergency dealing work can not be carried out timely, need building yard is widened, but the most domestic technology to this situation of solution is not the most the most ripe, have a kind of temporary support structures effectively quickly widened to be developed to change the status quo.
Summary of the invention
The present invention is directed to the proposition of problem above, and research design is a kind of is applied to temporary support structures and the construction method thereof that place is quickly widened, do not have, for solving existing engineering construction, the shortcoming that building yard is widened temporarily technology.The technological means that the present invention uses is as follows:
A kind of it is applied to the temporary support structures that place is quickly widened, including anchor pole, concrete topping, sandbag, bar-mat reinforcement and reinforcing bar pawl, the slope body section level of multiple described anchor poles is fixing in equidistantly inserting the slope body of former rock side slope, overhanging section of reinforcing bar both sides of described anchor pole are equidistantly welded with multiple reinforcing bar pawl, run through on described reinforcing bar pawl and have the sandbag filling rubble, overhanging section of end of each anchor pole is connected by bar-mat reinforcement, the gap location of anchor pole and sandbag is filled with gravelly soil, is injected with concrete topping at bar-mat reinforcement.
It is fixed on the reinforcing bar crotch that overhanging section of end of anchor pole has as the most described bar-mat reinforcement.
As being provided with multiple transverse steel for reinforcement structure intensity on preferred anchor pole.
Anchor pole as preferred bottom spread configuration is close to the concrete foundation bottom former rock side slope.
A kind of construction method being applied to the temporary support structures that place is quickly widened, comprises the following steps:
(1), prepare before construction, first carry out the base treatment on ground, wide field to be added, then require processing overhanging section of reinforcing bar of anchor pole and reinforcing bar pawl according to design, and by reinforcing bar pawl uniform welding in the reinforcing bar both sides of overhanging section of anchor pole；
(2), construction time, first carry out bottom anchor pole and construct with between the body of slope, require that the horizontal direction at protolith matter Slope body is holed according to design, anchor pole inner slope body section reinforcing bar is stretched in anchor hole fixing.
(3), when, after strong slurry solidification morning injected in anchor hole to prescribed strength, the sandbag filling rubble in using is applied on the reinforcing bar pawl of overhanging section of anchor pole.
(4), transverse steel is connected with overhanging section of reinforcing bar horizontal direction square crossing of anchor pole respectively.
(5), gravelly soil is used to fill up and cover sandbag gap location.
(6), lay bar-mat reinforcement, make bar-mat reinforcement connect with the reinforcing bar crotch that overhanging section of end of anchor pole is reserved, and to gunite concrete surface layer at bar-mat reinforcement.
(7), after every layer of construction complete, above-mentioned construction procedure is repeated, until having constructed.
After fixing in stretching into anchor hole as the anchor pole inner slope body section reinforcing bar described in preferred steps (2), inject the strongest slurry to the gap location of anchor hole and anchor pole.
It is no more than 3m as the transverse steel spacing described in preferred steps (4).
The mode using man-computer cooperation as preferred steps (5) medium stone soil paves and flattens.
On anchor pole, it is spaced apart 300mm-500mm as the reinforcing bar pawl described in preferred steps (1), the a length of 150mm-200mm of reinforcing bar pawl, described reinforcing bar pawl vertical direction is arranged, and is fixedly welded on anchor pole reinforcing bar, and makes reinforcing bar pawl vertical with anchor pole reinforcing bar axis.
Diameter as the most described gravelly soil filler is not more than 15cm.
Compared with the prior art, of the present invention it is applied to temporary support structures and the construction method thereof that place is quickly widened, main supporting construction is formed by anchor pole and transverse steel, it is filled with sandbag and gravelly soil, can quickly support the temporary support structures widened, can the reduction of erection time, construction costs can be reduced again.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the top view of the present invention.
Fig. 3 is the partial schematic diagram of the present invention.
Fig. 4 is that reinforcing bar crotch of the present invention is connected figure with bar-mat reinforcement.
Fig. 5 is the structural representation of bar-mat reinforcement of the present invention.
Fig. 6 is construction procedure of the present invention (1) and the schematic diagram of (2).
Fig. 7 is construction procedure of the present invention (3) and the schematic diagram of (4).
Fig. 8 is construction procedure of the present invention (5) and the schematic diagram of (6).
Wherein: 1, anchor pole, 2, transverse steel, 3, concrete topping, 4, sandbag, 5, bar-mat reinforcement, 6, former rock side slope, 7, reinforcing bar pawl, 8, concrete foundation, 9, reinforcing bar crotch.
Detailed description of the invention
As Figure 1-Figure 8, a kind of it is applied to the temporary support structures that place is quickly widened, including anchor pole 1, concrete topping 3, sandbag 4, bar-mat reinforcement 5 and reinforcing bar pawl 7, the slope body section level of multiple described anchor poles 1 is fixing in equidistantly inserting the slope body of former rock side slope 6, overhanging section of reinforcing bar both sides of described anchor pole 1 are equidistantly welded with multiple reinforcing bar pawl 7, run through on described reinforcing bar pawl 7 and have the sandbag 4 filling rubble, overhanging section of end of each anchor pole 1 is connected by bar-mat reinforcement 5, the gap location of anchor pole 1 and sandbag 4 is filled with gravelly soil, concrete topping 3 it is injected with at bar-mat reinforcement 5, supporting construction intensity after molding is high, speed of application is fast, can the reduction of erection time, construction costs can be reduced again.
Described bar-mat reinforcement 5 is fixed on the reinforcing bar crotch 9 that 1 overhanging section of end of anchor pole has.Multiple transverse steel 2 for reinforcement structure intensity it is provided with on anchor pole 1.The anchor pole 1 of bottom spread configuration is close to the concrete foundation 8 bottom former rock side slope 6.
Anchor pole 1 reinforcing bar of the present invention is divided into two parts, a part to be to stretch into the slope body section in side slope anchor hole, and a part is stretch out side slope overhanging section, overhanging section of upper welded reinforcement pawl.Anchor pole reinforcing bar and transverse steel 2 horizontal vertical interconnection.
As Figure 1-Figure 8, a kind of construction method being applied to the temporary support structures that place is quickly widened, use contrary sequence method, comprise the following steps:
(1), prepare before construction, first carry out the base treatment on ground, wide field to be added, then require processing overhanging section of reinforcing bar of anchor pole 1 and reinforcing bar pawl 7 according to design, and by reinforcing bar pawl 7 uniform welding in the reinforcing bar both sides of overhanging section of anchor pole；On anchor pole 1, it is spaced apart 300mm-500mm as the reinforcing bar pawl 7 described in preferred steps (1), reinforcing bar pawl 7 is preferably spaced 500mm on anchor pole 1, the a length of 150mm-200mm of reinforcing bar pawl 7, the length of reinforcing bar pawl 7 is preferably 150mm, described reinforcing bar pawl 7 vertical direction is arranged, it is fixedly welded on anchor pole 1 reinforcing bar, and makes reinforcing bar pawl 7 vertical with anchor pole 1 reinforcing bar axis.
(2), construction time, first carry out bottom anchor pole 1 and construct with between the body of slope, require that the horizontal direction at former rock side slope 6 slope body is holed according to design, anchor pole 1 inner slope body section reinforcing bar is stretched in anchor hole fixing；In stretching into anchor hole as the slope body section reinforcing bar of the anchor pole 1 described in preferred steps (2) fixing after, inject the strongest slurry to the gap location of anchor hole and anchor pole 1.
(3), when strong slurry solidification morning injected in anchor hole is to prescribed strength, and the sandbag 4 filling rubble in using is applied on the reinforcing bar pawl 7 of overhanging section of anchor pole, after placing, is alignd by sandbag 4.
(4), transverse steel is connected with 1 overhanging section of reinforcing bar horizontal direction square crossing of anchor pole respectively；It is no more than 3m as the transverse steel spacing described in preferred steps (4), spacing between transverse steel is preferably 3m, every 3m distance by transverse steel and 1 overhanging section of bar connecting of each anchor pole, for strengthening the rigidity of supporting construction, sandbag 4, anchor pole reinforcing bar 1 form main supporting construction with transverse steel 2.
(5), gravelly soil is used to fill up and cover sandbag 4 gap location；The mode using man-computer cooperation as preferred steps (5) medium stone soil paves and flattens, paving thickness uniformity, surfacing；Wherein, Manual is used in the range of the 1.5m away from concrete topping 3.
The preferable sandy soil of certain grating, water penetration, broken (gravel) stone class soil preferentially selected by gravelly soil filler, to ensure play between rib tape and filler bigger frictional force, it is ensured that Stability Analysis of Structures；Diameter as the most described gravelly soil filler is not more than 15cm.
(6), lay bar-mat reinforcement 5, make bar-mat reinforcement 5 connect with the reinforcing bar crotch 9 that 1 overhanging section of end of anchor pole is reserved, and to gunite concrete surface layer 3 at bar-mat reinforcement 5；
(7), after every layer of construction complete, above-mentioned construction procedure is repeated, until having constructed.
During support construction of the present invention, carry out the vertical of top, slope and horizontal displacement, periphery earth's surface Vertical Settlement and the monitoring of surface cracks, to ensure the safety of side slope, during support construction of the present invention, it is achieved that the reduction of erection time, reduce the purpose of construction costs.
The present invention can be used in all kinds of engineering ground and widens in supporting construction temporarily, and in the particular embodiment, as shown in Figure 6, the slope height of former rock side slope 6 is 8.0m, and the width that need to widen is 4m.
Before widening construction, former rock side slope 6 has used prestress anchorage cable+total length caking property suspension roof support to complete, widens outside present former rock side slope 6.
As it is shown in figure 1, in work progress, first use concrete foundation 8, carry out the base treatment on ground, wide field to be added, then requiring that the anchor pole 1 of slope body section is stretched out in processing according to design, every 500mm at the reinforcing bar pawl 7 of the reinforcing bar both sides weld length 150mm of overhanging section of anchor pole 1, direction is vertically perpendicular to reinforcing bar axis；Carrying out the construction of the end one row's anchor pole 1 again, first carry out drilling construction at former rock side slope 6 slope body design attitude, put into the anchor pole after processing 1 reinforcing bar, anchor hole injects the strongest slurry.
As it is shown in fig. 7, after slurry reaches some strength, the sandbag 4 filling rubble in using is applied on the reinforcing bar pawl 7 of overhanging section of anchor pole 1；Every 3m distance by transverse steel 2 and 1 overhanging section of bar connecting of each anchor pole, for strengthening the rigidity of supporting construction.
As shown in Figure 8, the gap location gravelly soil of sandbag 4 fills up and covers, and uses the mode of man-computer cooperation pave and flatten；Reserved steel bar crotch 9 is answered, for being connected with the bar-mat reinforcement 5 in gunite concrete surface layer 3 at 1 overhanging section of end of anchor pole；Lay bar-mat reinforcement 5, complete with the connection of reserved steel bar crotch 9 after, carry out the construction of gunite concrete surface layer 3；After every layer of construction completes, repeat above-mentioned construction procedure, until having constructed.
Wherein, concrete topping 3 of the present invention uses C25 gunite concrete injection molding, and the thickness of concrete topping 3 is 150mm, is built-in with φ 8150 × 150 bar-mat reinforcement；The top, slope of former rock side slope 6 uses C25 gunite concrete injection molding, and the thickness of top, slope concrete layer is 250mm, built-in double-deck φ 8150 × 150 bar-mat reinforcement.
It should be noted that and forbid preloading in the range of the 6m of top, former rock side slope 6 slope, the outer preloading value of 6m scope must not exceed 10kPa.
During construction, along with the vertical of top, former rock side slope 6 slope and horizontal displacement, periphery earth's surface Vertical Settlement and the monitoring of surface cracks.
Monitoring and warning value is: level or vertical accumulation displacement reach 30mm, or rate of displacement reaches 2mm/d.When occurring that following situations is for the moment, it is necessary to carry out danger warning immediately, and the protection object tackled in supporting construction and surrounding enviroment takes emergency trouble shooting measures.
(1) Monitoring Data reaches monitoring and warning value.
(2) shift value of supporting construction or the periphery soil body significantly increases suddenly.
Engineering construction and during using, every day should be carried out walkaround inspection by special messenger, and supporting construction, construction operating mode, surrounding enviroment, monitoring facilities are carried out walkaround inspection, as noted abnormalities and dangerous situation should notify Construction Party and other relevant units in time.
Of the present invention it is applied to temporary support structures and the construction method thereof that place is quickly widened, both speed of application had been accelerated, simplifying construction technology, reduce again engineering cost, the place after widening can be as the temporary road etc. of temporary building place, life area and emergency dealing.
The above; it is only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art is in the technical scope that the invention discloses; according to technical scheme and inventive concept equivalent or change in addition thereof, all should contain within protection scope of the present invention.
Claims (10)
1. one kind is applied to the temporary support structures that place is quickly widened, it is characterized in that including anchor pole, concrete topping, sandbag, bar-mat reinforcement and reinforcing bar pawl, the slope body section level of multiple described anchor poles is fixing in equidistantly inserting the slope body of former rock side slope, overhanging section of reinforcing bar both sides of described anchor pole are equidistantly welded with multiple reinforcing bar pawl, run through on described reinforcing bar pawl and have the sandbag filling rubble, overhanging section of end of each anchor pole is connected by bar-mat reinforcement, the gap location of anchor pole and sandbag is filled with gravelly soil, is injected with concrete topping at bar-mat reinforcement.
The most according to claim 1 it is applied to the temporary support structures that place is quickly widened, it is characterised in that: described bar-mat reinforcement is fixed on the reinforcing bar crotch that overhanging section of end of anchor pole has.
The most according to claim 1 and 2 it is applied to the temporary support structures that place is quickly widened, it is characterised in that: it is provided with multiple transverse steel for reinforcement structure intensity on anchor pole.
The most according to claim 3 it is applied to the temporary support structures that place is quickly widened, it is characterised in that: the anchor pole of bottom spread configuration is close to the concrete foundation bottom former rock side slope.
5. the construction method being applied to the temporary support structures that place is quickly widened, it is characterised in that comprise the following steps:
(1), prepare before construction, first carry out the base treatment on ground, wide field to be added, then require processing overhanging section of reinforcing bar of anchor pole and reinforcing bar pawl according to design, and reinforcing bar pawl is equidistantly welded in the reinforcing bar both sides of overhanging section of anchor pole；
(2), construction time, first carry out bottom anchor pole and construct with between the body of slope, require that the horizontal direction at protolith matter Slope body is holed according to design, anchor pole inner slope body section reinforcing bar is stretched in anchor hole fixing；
(3) sandbag filling rubble in, using is applied on the reinforcing bar pawl of overhanging section of anchor pole；
(4), transverse steel is connected with overhanging section of reinforcing bar horizontal direction square crossing of anchor pole respectively；
(5), gravelly soil is used to fill up and cover sandbag gap location；
(6), lay bar-mat reinforcement, make bar-mat reinforcement connect with the reinforcing bar crotch that overhanging section of end of anchor pole is reserved, and to gunite concrete surface layer at bar-mat reinforcement；
(7), after every layer of construction complete, above-mentioned construction procedure is repeated, until having constructed.
The construction method being applied to the temporary support structures that place is quickly widened the most according to claim 5, it is characterised in that:
After anchor pole inner slope body section reinforcing bar described in step (2) is fixing in stretching into anchor hole, inject the strongest slurry to the gap location of anchor hole and anchor pole.
The construction method being applied to the temporary support structures that place is quickly widened the most according to claim 5, it is characterised in that:
Transverse steel spacing described in step (4) is no more than 3m.
The construction method being applied to the temporary support structures that place is quickly widened the most according to claim 5, it is characterised in that:
Step (5) medium stone soil uses the mode of man-computer cooperation pave and flatten.
The construction method being applied to the temporary support structures that place is quickly widened the most according to claim 5, it is characterised in that:
Reinforcing bar pawl described in step (1) is spaced apart 300mm-500mm on anchor pole, the a length of 150mm-200mm of reinforcing bar pawl, described reinforcing bar pawl vertical direction is arranged, and is fixedly welded on anchor pole reinforcing bar, and makes reinforcing bar pawl vertical with anchor pole reinforcing bar axis.
The construction method being applied to the temporary support structures that place is quickly widened the most according to claim 5, it is characterised in that: the diameter of described gravelly soil filler is not more than 15cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610316678.XA CN105821730B (en) | 2016-05-12 | 2016-05-12 | The temporary support structures and its construction method quickly widened applied to place |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610316678.XA CN105821730B (en) | 2016-05-12 | 2016-05-12 | The temporary support structures and its construction method quickly widened applied to place |
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| CN105821730A true CN105821730A (en) | 2016-08-03 |
| CN105821730B CN105821730B (en) | 2018-06-12 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1131221A (en) * | 1995-12-29 | 1996-09-18 | 曾宪明 | Supporting and protecting method for base pit, side slope, flat anchor and spray net |
| JPH1150475A (en) * | 1997-07-30 | 1999-02-23 | Free Kogyo Kk | Execution of concrete structure and form plate |
| CN102352632A (en) * | 2011-07-29 | 2012-02-15 | 重庆大学 | Anchor rod sheet pile combined structure and method for reinforcing high filling body on one side of slope |
| CN203007960U (en) * | 2013-01-14 | 2013-06-19 | 金华职业技术学院 | Novel side slope shotcreting-bolting support structure |
| CN203654303U (en) * | 2013-12-18 | 2014-06-18 | 中国矿业大学(北京) | Side slope reinforcing structure |
| CN204590048U (en) * | 2015-04-30 | 2015-08-26 | 中国建筑第四工程局有限公司 | A kind of high slope rockmass structure |
| CN205617175U (en) * | 2016-05-12 | 2016-10-05 | 大连交通大学 | Be applied to temporary support structure of widening fast in place |
-
2016
- 2016-05-12 CN CN201610316678.XA patent/CN105821730B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1131221A (en) * | 1995-12-29 | 1996-09-18 | 曾宪明 | Supporting and protecting method for base pit, side slope, flat anchor and spray net |
| JPH1150475A (en) * | 1997-07-30 | 1999-02-23 | Free Kogyo Kk | Execution of concrete structure and form plate |
| CN102352632A (en) * | 2011-07-29 | 2012-02-15 | 重庆大学 | Anchor rod sheet pile combined structure and method for reinforcing high filling body on one side of slope |
| CN203007960U (en) * | 2013-01-14 | 2013-06-19 | 金华职业技术学院 | Novel side slope shotcreting-bolting support structure |
| CN203654303U (en) * | 2013-12-18 | 2014-06-18 | 中国矿业大学(北京) | Side slope reinforcing structure |
| CN204590048U (en) * | 2015-04-30 | 2015-08-26 | 中国建筑第四工程局有限公司 | A kind of high slope rockmass structure |
| CN205617175U (en) * | 2016-05-12 | 2016-10-05 | 大连交通大学 | Be applied to temporary support structure of widening fast in place |
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| CN105821730B (en) | 2018-06-12 |
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