CN208441096U - Soil nailing port closing device - Google Patents
Soil nailing port closing device Download PDFInfo
- Publication number
- CN208441096U CN208441096U CN201821118915.2U CN201821118915U CN208441096U CN 208441096 U CN208441096 U CN 208441096U CN 201821118915 U CN201821118915 U CN 201821118915U CN 208441096 U CN208441096 U CN 208441096U
- Authority
- CN
- China
- Prior art keywords
- soil nailing
- hole
- closeouts
- soil
- aperture
- 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.)
- Expired - Fee Related
Links
- 239000002689 soil Substances 0.000 title claims abstract description 134
- 230000000903 blocking effect Effects 0.000 claims abstract description 33
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 25
- 239000004568 cement Substances 0.000 claims description 11
- 229920002472 Starch Polymers 0.000 claims 1
- 239000004576 sand Substances 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- 239000008107 starch Substances 0.000 claims 1
- 238000007569 slipcasting Methods 0.000 description 21
- 239000010410 layer Substances 0.000 description 16
- 239000000243 solution Substances 0.000 description 10
- 239000002002 slurry Substances 0.000 description 6
- 239000004567 concrete Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 239000011378 shotcrete Substances 0.000 description 3
- 239000011083 cement mortar Substances 0.000 description 2
- 230000021615 conjugation Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a kind of soil nailing port closing devices, belong to base pit engineering technical field field, its key points of the technical solution are that: several soil nailing holes are provided on the base soil layer on foundation pit slope, the plugging device is located at the aperture in soil nailing hole, the plugging device includes the closeouts in soil nailing hole and the expansion piece between closeouts and soil nailing hole inner wall, the closeouts, through the preformed hole passed through for reinforcing bar is offered, are provided with injected hole by the preformed hole along its axis；The closeouts include the inserting end at aperture and the blocking end far from aperture one end, and blocking end is tapered to be arranged and be gradually increased along the direction internal diameter far from aperture；Blocking end is hauled under the closeouts stress condition to move towards the direction close to soil nailing aperture, expansion piece is radially strutted, until the inner wall with soil nailing hole fits closely.The utility model has the advantages that keeping soil nailing quality while by soil nailing port closing more tight.
Description
Technical field
The utility model relates to base pit engineering technical fields, and in particular to a kind of soil nailing port closing device.
Background technique
Soil nail wall is a kind of soil body reinforcement technology in situ, and excavation slope is reinforced the soil nailing made of reinforcing bar,
Side slope surface is laid with the slope reinforcement type supporting construction side that one of steel mesh fill-before-fire, one layer of concrete surface layer and earthwork side slope combine
Method.It is configured to be arranged in the reinforcement rod piece (i.e. soil nailing or anchor pole) in slopes formed with its surrounding soil strong bond it is compound
The supporting construction for the similar Form Gravity Breast Wall that body and surface layer are constituted.
Existing construction of soil-nailed wall is generally first drilled in the soil body with mechanical equipments such as drilling machines, the body of rod is placed in after pore-forming, so
Afterwards along overall length cement injection.Soil nailing port closing mostly uses waste cement bag or soil to block, and there are following for this closure mode
Deficiency, since waste cement bag or soil are filled in aperture, directly result in aperture section injecting cement paste intensity it is too low, influence soil nailing quality.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of soil nailing port closing device,
Its advantage is that: soil nailing quality is kept while by soil nailing port closing more tight.
The above-mentioned technical purpose of the utility model has the technical scheme that a kind of soil nailing port closing
Device is provided with several soil nailing holes on the base soil layer on foundation pit slope, which is located at the aperture in soil nailing hole, the closure
Device includes the closeouts in soil nailing hole and the expansion piece between closeouts and soil nailing hole inner wall, the closeouts edge
Its axis is provided with injected hole by the preformed hole through the preformed hole passed through for reinforcing bar is offered；
The closeouts include the inserting end at the aperture and the blocking end far from aperture one end, and end is tapered sets for blocking
It sets and is gradually increased along the direction internal diameter far from aperture；
It hauls blocking end under the closeouts stress condition to move towards the direction close to soil nailing aperture, by expansion piece along it
Radial direction struts, until the inner wall with soil nailing hole fits closely.
Through the above technical solutions, then hand is dragged closeouts and is incited somebody to action in use, closeouts and expansion piece are filled in soil nailing hole
Closeouts are moved away from the direction in soil nailing aperture, are blocked end and are leaned in the case where stress towards the direction close to soil nailing aperture
Closely, expansion piece is radially strutted, until the inner wall with soil nailing hole fits closely, at this point, blocking end is closely pasted with expansion piece
It closes, expansion piece fits closely with soil nailing hole, by closeouts and expansion piece by soil nailing port closing.Directly will when slip casting
Injected hole is connect with Grouting Pipe can carry out slip casting, and after the completion of slip casting, closeouts are fixed on coagulation by direct shotcrete layer
In soil layer, the structural strength of soil nail wall is improved.
The utility model is further arranged to: the expansion piece includes the resilient sleeve being set in outside the inserting end, institute
It states sleeve and offers several inflation openings along its outer surface, when the inserting end is moved away from the direction in soil nailing aperture, institute
It states blocking end radially to strut sleeve in sleeve, the expansion piece is fitted closely with the soil nailing hole.
Through the above technical solutions, because of the setting of sleeve expansion opening and the taper setting at blocking end, so that sleeve exists
Blocking struts outward under the action of end, fits closely with the inner wall in soil nailing hole.
The utility model is further arranged to: the outer surface of the sleeve is provided with the small protrusion of several arcs.
Through the above technical solutions, when being arranged so that sleeve is abutted with soil nailing hole, the setting of small protrusion so that
Sleeve connect more secured with soil nailing hole.
The utility model is further arranged to: length of the inflation openings along sleeve axis direction is less than sleeve axis side
To length, and form fixing end between inflation openings and washer, flexible filled layer be set in fixing end.
Through the above technical solutions, so set, making when being strutted sleeve by blocking end, flexible filled layer
It is fitted closely with soil nailing hole, soil nailing hole is more tightly stifled, and the air-tightness in soil nailing hole is more preferable, more conducively the slip casting in later period.
The utility model is further arranged to: diameter at the preformed hole aperture is along far from blocking the direction at end gradually
Increase.
Through the above technical solutions, so set, making reinforcing bar more simple and convenient when penetrating preformed hole.
The utility model is further arranged to: be additionally provided with elastic component at the preformed hole hole wall, the elastic component along
Reserved internal surface of hole setting, and the internal diameter of the elastic component is less than the internal diameter of the preformed hole.
Through the above technical solutions, so set, make by reinforcing bar be inserted into preformed hole when because elastic component have one
Fixed deformability, when reinforcing bar is inserted into preformed hole, elastic component generates certain deformation under the action of reinforcing bar, with reinforcing bar
It fits closely, prevents cement slurry when the slip casting into soil nailing hole from flowing out along the gap of preformed hole and reinforcing bar.
The utility model is further arranged to: the elastic component internal diameter along close to the preformed hole central axis side
To being gradually reduced.
Through the above technical solutions, so set, more simply holding when reinforcing bar is inserted or pull out out of preformed hole
Easily.
The utility model is further arranged to: the closeouts further include that casing is arranged in close to the pad of soil nailing aperture one end
Circle, the washer are arranged along the outer surface of described sleeve pipe, and the washer is arranged along the outer surface of described sleeve pipe, the slip casting
Hole is arranged along the axis direction of the washer, and the washer and is threaded with Grouting Pipe.
Through the above technical solutions, in use, closeouts and expansion piece are filled in soil nailing hole, until washer and foundation pit are oblique
Slope abuts, and washer is more tight by soil nailing hole plug.The setting of injected hole can directly pass through Grouting Pipe slip casting into soil nailing hole,
It can be improved slip casting efficiency.
The utility model is further arranged to: the inserting end is connected with nut far from described blocking end one end, and nut turns
Closeouts are driven to rotate when dynamic away from the direction in soil nailing hole.
Through the above technical solutions, in use, staff by turning nut, by closeouts away from soil nailing hole
Direction movement, until blocking end is fitted closely with sleeve.
The utility model is further arranged to: the closeouts are cement mortar prefabricated component.
Through the above technical solutions, so set, making when the slip casting into soil nailing hole, part of cement slurry and closure
Part abuts, and the conjugation of closeouts and concrete layer is higher, allows closeouts to connect ground with soil nail wall more closely, in turn
So that the structural strength of soil nail wall is higher.
In conclusion the utility model has the following beneficial effects:
1, the cooperation of expansion piece and type of tamper evidence soil nailing aperture can be blocked and block it is more tight, while can also
Keep soil nailing quality；
2, reinforcing bar is connect ground more closely by the setting of elastic component with preformed hole, prevents cement slurry in soil nailing hole from reinforcing bar
Gap outflow between preformed hole；
3, the setting at cone blocking end stays in expansion piece in soil nailing hole, and plugging device and soil nailing hole is prevented to be detached from；
4, the setting of flexible filled layer fills sleeve and soil nailing hole more tight, so that the leakproofness in soil nailing hole is more
It is good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that plugging device is embodied in the present embodiment；
Fig. 2 is the structural schematic diagram that expansion piece is embodied in the present embodiment；
Fig. 3 is the structural schematic diagram that closeouts are embodied in the present embodiment；
Fig. 4 is the structural schematic diagram that elastic component is embodied in the present embodiment.
Appended drawing reference: 1, foundation pit slope；2, soil nailing hole；3, closeouts；31, preformed hole；32, injected hole；33, inserting end；
34, end is blocked；35, nut；4, expansion piece；41, sleeve；411, inflation openings；42, washer；5, elastic component；6, reinforcing bar.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.The wherein identical attached drawing of identical components
Label indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "upper", "lower", " bottom
Face " and " top surface " refer to that the direction in attached drawing, word "inner" and "outside" are referred respectively to towards or away from particular elements geometry
The direction at center.
Embodiment: a kind of soil nailing port closing device is provided with several soil nailing holes 2 on the base soil layer on foundation pit slope 1, should
Plugging device is located at the aperture in soil nailing hole 2.In conjunction with Fig. 2, which includes closeouts 3 and place in soil nailing hole 2
Expansion piece 4 between 2 inner wall of closeouts 3 and soil nailing hole, closeouts 3 along its axis through offer passed through for reinforcing bar 6 it is pre-
It boxes out 31, injected hole 32 is provided with by preformed hole 31.Closeouts 3 include the inserting end 33 and separate aperture one end at aperture
Blocking end 34, the tapered setting in blocking end 34 and be gradually increased along far from the direction internal diameter in aperture.3 stress condition of closeouts
Under haul blocking end 34 towards close to 2 mouthfuls of soil nailing hole direction move, expansion piece 4 is radially strutted, until with soil nailing hole 2
Inner wall fit closely.
In use, closeouts 3 and expansion piece 4 are filled in soil nailing hole 2, then hand drags closeouts 3 for closeouts 3 towards remote
Direction movement of 2 mouthfuls from soil nailing hole, blocking end 34 is close towards the direction close to 2 mouthfuls of soil nailing hole in the case where stress, will be swollen
Swollen part 4 radially struts, until fit closely with blocking end 34 with expansion piece 4, expansion piece 4 and soil nailing hole 2 fit closely by
The closure of 2 mouthfuls of soil nailing hole, plugging device is in soil nailing hole 2 and will not be detached from soil nailing hole 2 at this time.It is direct when slip casting
Injected hole 32 is connect with Grouting Pipe can carry out slip casting, and after the completion of slip casting, direct shotcrete layer is fixed by closeouts 3
In concrete layer, the structural strength of soil nail wall is improved.
As shown in Fig. 2, expansion piece 4 includes the resilient sleeve 41 being set in outside inserting end 33, sleeve 41 is opened along its outer surface
Equipped with several inflation openings 411.In conjunction with Fig. 3, when inserting end 33 is moved away from the direction in 2 mouthfuls of soil nailing hole, blocking end 34 exists
Sleeve 41 is radially strutted in sleeve 41, expansion piece 4 is fitted closely with soil nailing hole 2.Because 41 inflation openings 411 of sleeve
It is arranged and blocks the taper setting at end 34, so that sleeve 41 struts outward under the action of blocking end 34, the inner wall with soil nailing hole 2
It fits closely, blocking end 34 and sleeve 41 are fixed in soil nailing hole 2 and block soil nailing hole 2.
Further, the diameter at 31 aperture of preformed hole is gradually increased along far from the direction for blocking end (in conjunction with Fig. 2).Such as
This setting so that reinforcing bar 6 penetrate it is more simple and convenient when preformed hole 31.It is small that the outer surface of sleeve 41 is provided with several arcs
Protrusion, when being arranged so that sleeve 41 is abutted with soil nailing hole 2, the setting of small protrusion is so that sleeve 41 and soil nailing hole 2 connect
It is grounded more secured.
As shown in Fig. 2, closeouts 3 further include that casing is arranged in close to the washer 42 of the 2 mouthfuls of one end in soil nailing hole, washer 42 along
The outer surface of casing is arranged.In use, closeouts 3 and expansion piece 4 are filled in soil nailing hole 2, until washer 42 and foundation pit slope 1
It abuts, washer 42 blocks soil nailing hole 2 more tight.Washer 42 is also provided with along its axis direction to be passed through for Grouting Pipe
Injected hole 44, washer 42 are threadedly coupled with Grouting Pipe.In use, being directly threadedly coupled Grouting Pipe with washer 42, then pass through
Grouting Pipe slip casting into soil nailing hole 2, can be improved slip casting efficiency.Inserting end 33 is threaded with nut 35 far from blocking end 34.
In use, staff passes through hand nutting 35, drive closeouts 3 away from the direction in soil nailing hole 2 in 3 rotation process of nut
Movement, until blocking end 34 is fitted closely with sleeve 41.
Further, as shown in figure 3, inflation openings 411 are less than 41 axis side of sleeve along the length of 41 axis direction of sleeve
To length, and between inflation openings 411 and washer 42 formed fixing end 43, flexible filled layer is set in fixing end 43,
So set, making when being strutted sleeve 41 by blocking end 34, flexible filled layer is fitted closely with soil nailing hole 2, will
Soil nailing hole 2 is more tightly stifled, and the air-tightness in soil nailing hole 2 is more preferable, more conducively the slip casting in later period.
Closeouts 3 are cement mortar prefabricated component.So set, making when the slip casting into soil nailing hole 2, part of cement
Slurry is abutted with closeouts 3, and closeouts 3 and the conjugation of concrete layer are higher, and closeouts 3 is allowed to connect ground with soil nail wall more
To be close, so that the structural strength of soil nail wall is higher.
Usually used in the work progress of soil nail wall is Ribbed Bar, Ribbed Bar be inserted into preformed hole 31 when
It waits, the hole wall of reinforcing bar 6 and preformed hole 31 has certain gap, in order to prevent into soil nailing hole 2 when slip casting, cement slurry edge
The gap outflow between reinforcing bar 6 and preformed hole 31, as shown in figure 4, be additionally provided with several elastic components 5 at 31 hole wall of preformed hole,
Elastic component 5 is arranged along 31 inner surface of preformed hole, and the internal diameter of elastic component 5 is less than the internal diameter of preformed hole 31.So set, making
When reinforcing bar 6 is inserted into preformed hole 31, because elastic component 5 has certain deformability, reinforcing bar 6 is inserted into preformed hole 31
When, elastic component 5 generates certain deformation under the action of reinforcing bar 6, fits closely with reinforcing bar 6, prevents the slip casting into soil nailing hole 2
When cement slurry along the gap of preformed hole 31 and reinforcing bar 6 flow out.5 internal diameter of elastic component is along the central axis close to preformed hole 31
The direction of line is gradually reduced, so set, reducing the contact area of reinforcing bar 6 and elastic component 5, so that reinforcing bar 6 is inserted or pull out
It is more easy when centre bore 31.
The course of work: in use, closeouts 3 and expansion piece 4 are filled in soil nailing hole 2, then hand nutting 35 will be blocked
Part 3 is moved away from the direction in 2 mouthfuls of soil nailing hole, blocks end 34 in the case where stress towards the direction close to 2 mouthfuls of soil nailing hole
It is close, expansion piece 4 is radially strutted, until fitting closely with blocking end 34 with expansion piece 4, expansion piece 4 and soil nailing hole 2 are tight
Closely connected to close the closure of 2 mouthfuls of soil nailing hole, plugging device is in soil nailing hole 2 and will not be detached from soil nailing hole 2 at this time.Slip casting when
It waits directly to be threadedly coupled Grouting Pipe with washer 42 and carries out slip casting, after the completion of slip casting, direct shotcrete layer, by closeouts 3
It is fixed in concrete layer, improves the structural strength of soil nail wall.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (10)
1. a kind of soil nailing port closing device is provided with several soil nailing holes (2), feature on the base soil layer of foundation pit slope (1)
Be: the plugging device is located at the aperture in soil nailing hole (2), the plugging device include closeouts (3) in soil nailing hole (2) and
Expansion piece (4) between closeouts (3) and soil nailing hole (2) inner wall, the closeouts (3) are run through along its axis offers confession
The preformed hole (31) that reinforcing bar (6) passes through, the preformed hole (31) is other to be provided with injected hole (32)；
The closeouts (3) include the inserting end (33) at aperture and the blocking end (34) far from aperture one end, block end
(34) tapered to be arranged and be gradually increased along the direction internal diameter far from aperture；
Blocking end (34) is hauled under closeouts (3) stress condition to move towards the direction close to soil nailing hole (2) mouth, will be expanded
Part (4) radially struts, until the inner wall with soil nailing hole (2) fits closely.
2. a kind of soil nailing port closing device according to claim 1, it is characterized in that: the expansion piece (4) includes being arranged
In the resilient sleeve (41) of the inserting end (33) outside, the sleeve (41) offers several inflation openings along its outer surface
(411), when the inserting end (33) moves away from the direction of soil nailing hole (2) mouth, the blocking end (34) is in sleeve (41)
Interior radially to strut sleeve (41), the expansion piece (4) fits closely with the soil nailing hole (2).
3. a kind of soil nailing port closing device according to claim 2, it is characterized in that: the outer surface of the sleeve (41) is set
It is equipped with the small protrusion of several arcs.
4. a kind of soil nailing port closing device according to claim 2, it is characterized in that: the inflation openings (411) are along set
The length of cylinder (41) axis direction is less than the length of sleeve (41) axis direction, and between inflation openings (411) and washer (42)
It is formed fixing end (43), flexible filled layer is arranged on (43) in fixing end.
5. a kind of soil nailing port closing device according to claim 1, it is characterized in that: at the preformed hole (31) aperture
Diameter is gradually increased along far from the direction for blocking end.
6. a kind of soil nailing port closing device according to claim 1, it is characterized in that: at the preformed hole (31) hole wall also
It is provided with elastic component (5), the elastic component (5) is arranged along preformed hole (31) inner surface, and the internal diameter of the elastic component (5) is small
Internal diameter in the preformed hole (31).
7. a kind of soil nailing port closing device according to claim 6, it is characterized in that: the elastic component (5) internal diameter along
Direction close to the central axis of the preformed hole (31) is gradually reduced.
8. a kind of soil nailing port closing device according to claim 1, it is characterized in that: the closeouts (3) further include setting
The washer (42) in casing close to soil nailing hole (2) mouth one end is set, the washer (42) is arranged along the outer surface of described sleeve pipe, institute
It states injected hole (32) to be arranged along the axis direction of the washer (42), and the washer (42) is threaded with Grouting Pipe.
9. a kind of soil nailing port closing device according to claim 1, it is characterized in that: the inserting end (33) is far from described
Blocking end (34) threaded one end is connected with nut (35), drives closeouts (3) away from soil nailing hole (2) when nut (35) rotates
Direction rotation.
10. a kind of soil nailing port closing device according to claim 1, it is characterized in that: the closeouts (3) are cement bonded sand
Starch prefabricated component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821118915.2U CN208441096U (en) | 2018-07-13 | 2018-07-13 | Soil nailing port closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821118915.2U CN208441096U (en) | 2018-07-13 | 2018-07-13 | Soil nailing port closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208441096U true CN208441096U (en) | 2019-01-29 |
Family
ID=65086201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821118915.2U Expired - Fee Related CN208441096U (en) | 2018-07-13 | 2018-07-13 | Soil nailing port closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208441096U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112414244A (en) * | 2020-12-02 | 2021-02-26 | 河海大学 | Self-sealing type orifice clamping device and construction method thereof |
| CN112610181A (en) * | 2020-12-30 | 2021-04-06 | 武汉中科岩土工程有限责任公司 | Underwater tunnel engineering exploration hole plugging structure and plugging method thereof |
| CN114892676A (en) * | 2022-06-02 | 2022-08-12 | 中铁十五局集团第五工程有限公司 | Foundation pit soil nailing wall support and construction method thereof |
-
2018
- 2018-07-13 CN CN201821118915.2U patent/CN208441096U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112414244A (en) * | 2020-12-02 | 2021-02-26 | 河海大学 | Self-sealing type orifice clamping device and construction method thereof |
| CN112414244B (en) * | 2020-12-02 | 2024-05-03 | 河海大学 | Self-sealing orifice clamping device and construction method thereof |
| CN112610181A (en) * | 2020-12-30 | 2021-04-06 | 武汉中科岩土工程有限责任公司 | Underwater tunnel engineering exploration hole plugging structure and plugging method thereof |
| CN114892676A (en) * | 2022-06-02 | 2022-08-12 | 中铁十五局集团第五工程有限公司 | Foundation pit soil nailing wall support and construction method thereof |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190129 |