CN206815839U - Split bolt hole water sealing structure - Google Patents
Split bolt hole water sealing structure Download PDFInfo
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- CN206815839U CN206815839U CN201720683770.XU CN201720683770U CN206815839U CN 206815839 U CN206815839 U CN 206815839U CN 201720683770 U CN201720683770 U CN 201720683770U CN 206815839 U CN206815839 U CN 206815839U
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- water
- split bolt
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- plastic film
- bolt hole
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Abstract
The utility model discloses a kind of split bolt hole water sealing structure, including the plastic film capicitor being arranged in thin wall concrete split bolt hole；Reaming section before split bolt hole in front of plastic film capicitor is arranged to, the split bolt hole at plastic film capicitor rear are arranged to rear reaming section, and the end of preceding reaming section is provided with water-swellable filler block, equal plugging grouting material in preceding reaming section, rear reaming section and plastic film capicitor.The invention also discloses the construction method of above-mentioned split bolt hole water sealing structure, first step, installs plastic ripple pipe sleeve and split bolt；Second step is to pour and form removal；Third step is reaming；Four steps is installation water-swellable filler block；5th step is filling grouting material；6th step is if any underground water, increases by a water-swellable filler block in land side.Split bolt hole water sealing structure both has higher performance resistant to pressure, it may have higher vertebration property and durability, and be easy to construct.
Description
Technical field
It the utility model is related to the realm of building construction, more particularly to split bolt hole water sealing structure and sealing technique.
Background technology
In concrete engineering construction, split bolt is used between two side templates（Also known as Screw arbor with nut at both-ends or split bolt）It is right
It is conventional technological means that wall medial and lateral template, which carries out drawknot, and split bolt bears coagulation earth lateral pressure and other loads,
The rigidity and stability for ensuring interior outboard template meet design requirement.
In thin wall concrete engineering, split bolt sockets form technology there are the following problems in construction market at present：It is right
Draw bolt sealing the whole series processing technology thereof quality requirement high, installation difficulty, be not easy form removal；For thin wall concrete, mix
Solidifying native wall is thin, and split bolt is short, seepage paths（Seepage paths refers to the permeation pathway of water）It is short, easily cause seepage after the long-term corrosion of screw mandrel；
Because concrete wall is thin, reinforcing bar is close, pour vibrate when easily caused by cross to shake split bolt sealing steel loop and expansion loop destroy or
Because of the leakage at split bolt sealing steel loop, seepage is caused.
The method of the patching of split bolt used by for thin wall concrete formwork reinforcement in current construction market
Carry out looking into new and analysis, it is found that water-stopping method mainly includes two major classes：
The first kind：Split bolt part is embedded in concrete, by metallic water stop sheet and expansion loop sealing.Such sealing side
The advantages of method is that water resistant Compressive Strength is big（The rise of hydraulic pressure not easily leads to further seepage by contrast, but can not solve original
Seepage）.Shortcoming has：Difficulty of construction is big, progress is slow, construction cost is high, poor durability, easily because reasons in structure produces seepage etc..
Second class：Pre-buried plastic bushing, split bolt can extract turnover out, and wire drawing hole is by water-swellable sealing putty and swollen
Buckle starches sealing.Advantage is that split bolt can be used in turn, and construction cost is low；Water-swellable putty is anticorrosive, ageing-resistant, durable
Property is good；It is easy for installation；The form removal cycle is short, can improve form cycling rate and accelerating construction progress.Shortcoming is that water resistant Compressive Strength is small, easily
The seepage caused by hydraulic pressure.
Utility model content
The purpose of this utility model is to provide a kind of split bolt hole water sealing structure both have higher seepage resistant to pressure
Performance, it may have higher vertebration property and durability, and be easy to construct.
To achieve the above object, split bolt hole of the present utility model water sealing structure includes being arranged on thin wall concrete to drawing
Plastic film capicitor in bolt hole；Reaming section before being arranged to using upstream face as before to, the split bolt hole in front of plastic film capicitor,
The diameter of preceding reaming section is more than the diameter of plastic film capicitor and the rearward end of preceding reaming section is provided with pre-large post-small preceding contraction hole section,
It is preceding shrink hole section rear end diameter it is identical with plastic film capicitor external diameter and with plastic film capicitor is corresponding connects；
The split bolt hole at plastic film capicitor rear is arranged to rear reaming section, and the diameter of rear reaming section is more than plastic film capicitor
Diameter and the leading section of rear reaming section be provided with pre-small post-large after-contraction hole section；
The end of preceding reaming section is provided with water-swellable filler block, water-swellable filler block and preceding reaming section end and its preceding receipts
Shrinkage cavity section is adapted；Closure has grouting material in preceding reaming section in front of water-swellable filler block, water-swellable filler block rear
Being blocked in rear reaming section in plastic film capicitor and has grouting material.
The point diameter of water-swellable filler block is identical with the internal diameter of preceding reaming section, the rear end diameter of water-swellable filler block
Less than plastic film capicitor internal diameter and stretch into plastic film capicitor.
The water-swellable filler block grows 20 millimeters, and a diameter of 16 millimeters of water-swellable filler block rear end, water-swellable stops
The internal diameter of a diameter of 22 millimeters of the middle front part of water plug, preceding reaming section and rear reaming section is 22 millimeters, the preceding milli of reaming segment length 100
Rice, rear 20 millimeters of reaming segment length.
The utility model has the following advantages：
Split bolt hole of the present utility model water sealing structure, performance resistant to pressure can reach more than 0.1MPa, have higher
Vertebration property and durability, and be easy to construct.Because water sealing structure is on the basis of original material for pouring thin wall concrete
On, water-swellable filler block and grouting material are increase only, cost is very low.
The utility model is provided with preceding reaming section, the plastic film capicitor of reaming section before rejecting, enables grouting material preferably
Combined with concrete, improve the stability of water sealing structure；Because the diameter of water-swellable filler block is more than the diameter of plastic film capicitor,
So as to form step-like structure between preceding reaming section and plastic film capicitor（Preceding contraction hole section）, it is preceding contraction hole section not only change
Direction is permeated, improves anti-permeability strength, additionally it is possible to water pressure is transmitted using in upstream face, after making water-swellable filler block rearward displacement
Infiltration lane the more is pressed the more close, improves anti-permeability strength.If without preceding reaming section, water-swellable filler block is just arranged without anti-push away
Apply, grouting material and water-swellable filler block are slided backward so as to destroy leakage preventing structure in the presence of upstream face transmits water pressure.
The utility model employs plastic film capicitor, and the outer wall after concreting in plastic film capicitor forms corrugated,
Equally, the outer wall after grouting material closure in plastic film capicitor also forms corrugated.Compared to no plastic film capicitor or using smooth surface
Pvc pipe, the grouting material in the utility model are more interlocked securely by plastic film capicitor with thin wall concrete, are formed
Self-locking structure, the ability of resistance upstream face hydraulic pressure is improved, prevents the structure in split bolt hole in the presence of hydraulic pressure to backwater
Move in face；Due to the bellows-shaped of plastic film capicitor, seepage paths is extended, further increases the anti-of split bolt hole water sealing structure
Ooze ability.
The utility model employs grouting material, and grouting material avoids match ratio manual operation mistake as finished product plugging material
Difference, so as to ensure that split bolt hole blocks quality；Due to the characteristic of grouting material microdilatancy, make plugging material and concrete more preferable
Ground is combined together, and improves the anti-permeability strength in split bolt hole；The characteristics of due to grouting material high intensity（Generally higher than 50MPa）,
The intensity of split bolt hole closure is improved, ensure that the durability and stability of split bolt hole water sealing structure.
The utility model employs tack plain bar, 20 millimeters of the diameter of tack plain bar, it is ensured that tack light
Round bar and water-swellable filler block have larger contact area, ensure integrally to reach the last water-swellable filler block reaming
Section.
The utility model construction technology is easy to operate, without high capital equipment or material, can efficiently produce to drawing
Bolt hole water sealing structure, ensure construction quality, structural strength and the anti-permeability performance of split bolt hole water sealing structure.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the enlarged drawing at A in Fig. 1；
Fig. 3 is the structural representation after the reaming of split bolt hole；
Fig. 4 is the structural representation after the reaming of split bolt hole when having underground water；
Fig. 5 is structural representation of the present utility model when there is water thin wall concrete both sides.
Embodiment
In Fig. 1 and Fig. 2 label 2 indicate for the water at thin wall concrete structure 3.
As shown in Figures 1 to 5, split bolt hole of the present utility model water sealing structure includes being arranged on thin wall concrete to drawing
Plastic film capicitor 1 in bolt hole；Plastic film capicitor is prior art, and its specific bellows-shaped is no longer shown in detail in figure.
Reaming section 4 before being arranged to using upstream face as before to the split bolt hole in the front of, plastic film capicitor 1, preceding reaming section 4
Diameter is more than the diameter of plastic film capicitor 1 and the rearward end of preceding reaming section 4 is provided with pre-large post-small preceding contraction hole section 5, preceding contraction
The diameter of the rear end of hole section 5 is identical with the external diameter of plastic film capicitor 1 and is correspondingly connected with plastic film capicitor 1；Certainly, plastic film capicitor
1 external diameter is identical with the internal diameter in split bolt hole.
The split bolt hole at the rear of plastic film capicitor 1 is arranged to rear reaming section 6, and the diameter of rear reaming section 6 is more than plastics ripple
The leading section of the diameter of line pipe 1 and rear reaming section 6 is provided with pre-small post-large after-contraction hole section 7；
The end of preceding reaming section 4 is provided with water-swellable filler block 8, water-swellable filler block 8 and the preceding end of reaming section 4 and its
Preceding contraction hole section 5 is adapted；Closure has the grouting material that the ratio of mud is less than 0.2 in the preceding reaming section 4 in the front of water-swellable filler block 8
9, the plastic film capicitor 1 at the rear of water-swellable filler block 8 is interior and blocks the filling for having the ratio of mud to be less than 0.2 in reaming section 6 afterwards
Slurry 9.
Wherein, water-swellable filler block 8 is made up of water-swellable material, such as water expandable waterstop（It is circular）.
The point diameter of water-swellable filler block 8 is identical with the internal diameter of preceding reaming section 4, the rear end of water-swellable filler block 8
Diameter is less than the internal diameter of plastic film capicitor 1 and stretches into plastic film capicitor 1.
20 millimeters of the length of water-swellable filler block 8, a diameter of 16 millimeters of the rear end of water-swellable filler block 8, water-swellable
The internal diameter of a diameter of 22 millimeters of the middle front part of filler block 8, preceding reaming section 4 and rear reaming section 6 is 22 millimeters, preceding reaming section 4
Long 100 millimeters, rear reaming section 6 grows 20 millimeters.
Fig. 5 show structural representation of the present utility model when there is water thin wall concrete both sides.
The invention also discloses the construction technology of above-mentioned split bolt hole water sealing structure, enter according to the following steps successively
OK：
First step is that plastic film capicitor 1 and split bolt are penetrated between the template of front and rear sides；
Split bolt is first penetrated into rigid plastics bellows 1, before then penetrating plastic film capicitor 1 and split bolt together
Afterwards in the pattern hole of two side templates；The pattern hole for wearing split bolt is respectively provided with template using split bolt drawknot, is
Prior art, not shown template and pattern hole.Plastic ripple length of tube is more than 20 millimeters of concrete broken face thickness；Plastic film capicitor
1 front end penetrates front template and its rear end penetrates rear pattern plate, and spillage occurs during so as to prevent casting concrete at pattern hole；Plastics
The internal diameter of bellows 1 is more than screw diameter 2-4 millimeters；
Second step is to pour thin wall concrete and form removal,
After template acceptance(check), conventional method casting concrete is used between the template of front and rear sides, conserves to predetermined and tears open
Extract split bolt after mould intensity out from plastic film capicitor 1, then remove front side template and rear side template；
Third step is reaming, and electric hand drill is used to right in the upstream face i.e. front end face of the thin wall concrete structure poured
Draw bolt hole to carry out reaming, make 4 millimeters of the aperture increases in split bolt hole to 22 millimeters of aperture, 100 millimeters of counterbore depth at this,
Reaming section 4 and its preceding contraction hole section 5 before being processed naturally by its own shape when drill bit is crept into；
Reaming is carried out to split bolt hole using electric hand drill in the back side of the thin wall concrete structure poured, made to drawing
4 millimeters to 22 millimeters of the aperture increases of bolt hole, 20 millimeters of counterbore depth at this are natural by its own shape when drill bit is crept into
Process rear reaming section 6 and its after-contraction hole section 7；
Four steps is installation water-swellable filler block 8；
Operating personnel check the quality using water-swellable filler block 8 made of the rounded water expandable waterstop in section
And reaming section 4 and its preceding quality for shrinking hole section 5 before checking, from upstream face（I.e. from front to back）Water-swellable filler block 8 is used
Hand hammer and tack plain bar reach the last reaming section 4 and its preceding contraction and stoppers hole section 5, make the rear end of water-swellable filler block 8
Portion is fitted with preceding contraction hole section 5 and the rear end of water-swellable filler block 8 enters the front end of plastic film capicitor 1；Tack plain bar
Diameter be less than preceding reaming section 42 millimeters of diameter, be 20 millimeters.So, tack plain bar and water-swellable can both be ensured
Filler block 8 has larger contact area, ensures enough to prevent from putting down by the overall reaming section 4 of reaching the last of water-swellable filler block 8, and can
The situation that head plain bar is in contact with preceding reaming section 4, causes the hole wall of preceding reaming section 4 to be broken, reaming section 4 is damaged before preventing
Cause leak；
5th step is filling grouting material 9；
Add water mix grouting material 9, the control ratio of mud is less than 0.2, by grouting material 9 inject preceding reaming section 4, rear reaming section 6 and
Thereafter hole section 7 and plastic film capicitor 1 are shunk, the tack plain bar of preceding 4 two millimeters of reaming section is less than using diameter（Tack light
20 millimeters of round bar diameter）From front to back（I.e. from outside to inside）Grouting material 9 before filling, compacting in reaming section 4 is small using diameter
In rear 6 two millimeters of reaming section tack plain bar clog from back to front, be compacted after reaming section 6 and its after-contraction hole section 7 and
Grouting material 9 in plastic film capicitor 1, from the preceding front end of reaming section 4 and the rear rear end of reaming section 6 grouting material 9 is carried out with trowel it is floating,
Finally adhesive tape is pasted respectively and is conserved in the preceding front end of reaming section 4 and the rear rear end of reaming section 6.
One-way waterproof structure when above scheme background is without underground water, land side need to carry out two-way anti-when meeting underground water
Water.Specific method is that rear reaming section depth is changed into 40 millimeters, then squeezes into a milli of water-swellable filler block 20 again from land side
Rice, is finally blocked with grouting material again.
A diameter of 12-14 millimeters of split bolt in first step, preferably 14 millimeters, plastic ripple in first step
Pipe 1 stretches into forward 10 millimeters of the template in front side and extends rearward into 10 millimeters of template of rear side；Plastic film capicitor 1 is interior in first step
Footpath is 16 millimeters and external diameter is 18 millimeters；
20 millimeters of water expandable waterstop plug in second step, a diameter of 16 millimeters of the rear end of water-swellable filler block 8
And preceding a diameter of 22 millimeters of middle front part；
Water sealing structure was used as using pre-buried plastic bushing and sealing putty and expansive mortar in the past, through observation in 72 hours,
Its maximum water resistant Compressive Strength is 0.05 MPa, it is impossible to meets the requirement of engineering.
After the water sealing structure and water-stopping method of the present embodiment, inventor has carried out experiment resistant to pressure（Water column method）.
The impervious simulated experiment in split bolt hole：One group of concrete impervious testing mold 6 is taken, in bottom hole.Upstream face, bottom surface are used as above
As back side, simulation thin wall concrete split bolt sealing technique is tested.By vertically installing plastics at die trial center
Bellows and split bolt, dress C30W6 concrete, form removal, reaming, installation water-swellable filler block, grouting material closure, laboratory
To be learnt after the flows such as impermeability test, land side starts to seep water after 15 hours, continues observation pressurization, after 40 hours, due to
The expansion extruding of water-swellable filler block 8, infiltration stop, continuing to be forced into 0.8MPa, do not seep water, seepage-resistant grade is more than
W6。
Field test：6 split bolt holes of sampling, adjustment water-column is to 8.5 meters（0.085MPa）, observe 20 hours
The land side of thin wall concrete structure starts to seep water afterwards.After 41 hours, extrude, ooze because water-swellable filler block 8 expands
Water stops.Without the wet stain of appearance after 56 hours.Water-column is adjusted to 10 meters（0.1 MPa）, observe 72 hours, do not occur
Wet stain, illustrate that the performance resistant to pressure of water sealing structure and sealing technique of the present utility model reaches 0.1 MPa.
The utility model is provided with preceding reaming section, therefore the diameter of water-swellable filler block is greater than the straight of plastic film capicitor
Footpath, so as to form step-like structure between preceding reaming section and plastic film capicitor（Preceding contraction hole section）, can utilize what is poured
Thin wall concrete structure directly supports water-swellable filler block from the front to the back, prevents grouting material and water-swellable filler block from meeting water
Slided backward in the presence of the pressure that face is transmitted so as to destroy infiltration energy.If without preceding reaming section, water-swellable sealing
Plug cannot directly support water-swellable filler block in the longitudinal direction.
The utility model employs plastic film capicitor, and the pouring material of thin wall concrete enters the outer wall ripple of plastic film capicitor
Among, plastic film capicitor is firmly combined together with thin wall concrete material.Similarly, the inwall of plastic film capicitor and grouting
Material is also firmly combined together.Compared to no plastic film capicitor or using light pipe, the grouting material in the utility model passes through modeling
Material bellows is more firmly combined together with thin wall concrete, and structural strength is more preferable, more resistant against the hydraulic pressure of upstream face, is prevented
Only the structure in split bolt hole supports or opposes water surface movable in the presence of hydraulic pressure.
Construction technology of the present utility model is easy to operate, without high capital equipment or material, can efficiently produce pair
Bolt hole water sealing structure is drawn, ensures construction quality, structural strength and the water permeability resistance energy of split bolt hole water sealing structure.
The diameter of tack plain bar is less than 2 millimeters of the diameter of preceding reaming section, can both ensure tack plain bar with meeting
Water expansion water-stop plug has larger contact area, ensures integrally to reach the last water-swellable filler block reaming section, and and can is enough anti-
The situation that only tack plain bar is in contact with preceding reaming section, causes the hole wall of preceding reaming section to be broken, reaming section is broken before preventing
Damage causes infiltration.
Above example is only to illustrative and not limiting the technical solution of the utility model, although with reference to above-described embodiment pair
The utility model is described in detail, it will be understood by those within the art that：The utility model can still be entered
Row modification or equivalent substitution, without departing from any modification or partial replacement of spirit and scope of the present utility model, it all should
Cover among right of the present utility model.
Claims (3)
1. split bolt hole water sealing structure, it is characterised in that：
Including the plastic film capicitor being arranged in thin wall concrete split bolt hole；Using upstream face as before to before plastic film capicitor
Reaming section before the split bolt hole of side is arranged to, after the diameter of preceding reaming section is more than diameter and the preceding reaming section of plastic film capicitor
End is provided with pre-large post-small preceding contraction hole section, it is preceding shrink hole section rear end diameter is identical with plastic film capicitor external diameter and and plastics
Bellows is corresponding to be connected；
The split bolt hole at plastic film capicitor rear is arranged to rear reaming section, and the diameter of rear reaming section is more than the straight of plastic film capicitor
The footpath and leading section of rear reaming section is provided with pre-small post-large after-contraction hole section；
The end of preceding reaming section is provided with water-swellable filler block, water-swellable filler block and preceding reaming section end and its preceding shrinkage hole
Section is adapted；Closure has grouting material, the plastics at water-swellable filler block rear in preceding reaming section in front of water-swellable filler block
Being blocked in rear reaming section in bellows and has grouting material.
2. split bolt hole according to claim 1 water sealing structure, it is characterised in that：The front end of water-swellable filler block is straight
Footpath is identical with the internal diameter of preceding reaming section, and the rear end diameter of water-swellable filler block is less than the internal diameter of plastic film capicitor and stretches into plastics
Bellows.
3. split bolt hole according to claim 1 water sealing structure, it is characterised in that：The water-swellable filler block length 20
Millimeter, a diameter of 16 millimeters of water-swellable filler block rear end, a diameter of 22 millimeters of the middle front part of water-swellable filler block, preceding expansion
The internal diameter of hole section and rear reaming section is 22 millimeters, preceding 100 millimeters of reaming segment length, rear 20 millimeters of reaming segment length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720683770.XU CN206815839U (en) | 2017-06-13 | 2017-06-13 | Split bolt hole water sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720683770.XU CN206815839U (en) | 2017-06-13 | 2017-06-13 | Split bolt hole water sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206815839U true CN206815839U (en) | 2017-12-29 |
Family
ID=60759697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720683770.XU Active CN206815839U (en) | 2017-06-13 | 2017-06-13 | Split bolt hole water sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206815839U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643601A (en) * | 2018-04-28 | 2018-10-12 | 武汉冶建筑安装工程有限责任公司 | The plugging device and operating method of template wall-punching pair-pulling threaded spindle hole |
-
2017
- 2017-06-13 CN CN201720683770.XU patent/CN206815839U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643601A (en) * | 2018-04-28 | 2018-10-12 | 武汉冶建筑安装工程有限责任公司 | The plugging device and operating method of template wall-punching pair-pulling threaded spindle hole |
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