CN107964974A - A kind of water-stop curtain constructing device and its construction method - Google Patents
A kind of water-stop curtain constructing device and its construction method Download PDFInfo
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- CN107964974A CN107964974A CN201711393659.8A CN201711393659A CN107964974A CN 107964974 A CN107964974 A CN 107964974A CN 201711393659 A CN201711393659 A CN 201711393659A CN 107964974 A CN107964974 A CN 107964974A
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- drilling rod
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- sebific duct
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- 238000010276 construction Methods 0.000 title claims abstract description 40
- 238000005553 drilling Methods 0.000 claims abstract description 140
- 239000007921 spray Substances 0.000 claims abstract description 34
- 239000002002 slurry Substances 0.000 claims abstract description 29
- 238000003756 stirring Methods 0.000 claims abstract description 28
- 239000003292 glue Substances 0.000 claims abstract description 20
- 239000011083 cement mortar Substances 0.000 claims description 11
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 238000013461 design Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- 238000013019 agitation Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 239000004568 cement Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 3
- 239000002689 soil Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- -1 silt Substances 0.000 description 1
- 238000009955 starching Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Abstract
A kind of water-stop curtain constructing device and its construction method, the device includes drilling machine, power head, drilling rod and drill bit, uniform intervals are equipped with blade on drilling rod, drilling rod has three, every drilling rod core is equipped with slurries sebific duct and ventilating glue tube, drilling rod, slurries sebific duct and ventilating glue tube three are coaxial, slurries sebific duct and ventilating glue tube are along the elongated setting of drilling rod long axis direction, the top of drilling rod is equipped with the inlet connected with slurries sebific duct and the air inlet connected with ventilating glue tube, and drill bit is equipped with the spray hole connected with slurries sebific duct and the fumarole connected with ventilating glue tube.The present invention solves convention stir stake, rotary churning pile is fixed up in hard stratum area, sprays motionless problem, stratum is widely used, and expanded diameter scope is big, substantially limited from drilling rod scale, pile quality is good, effect is high, since spray stirs well even, return slurry amount and lack, moreover it is possible to save cement material, reduce cost;It can ensure that pile body overlaps quality in the longer situation of pile body, advantage of constructing in water-stop curtain engineering is especially apparent.
Description
Technical field
The present invention relates to water-stop curtain construction field, particularly a kind of constructing device and its construction method.
Background technology
At present, conventional mixing pile and rotary churning pile due to its technique it is simple, the features such as cost is relatively low, be widely used in soft
The engineering fields such as soil area basement process, water-stop curtain.But because of the limitation of its process characteristic, expanded diameter, pile body overlap joint,
There are certain deficiency and defect in terms of pile body verticality, pile-forming effect, its application range is seriously limited, especially in northern soil property
Harder region is difficult to carry out in the case where pile body diameter is big, length is longer, verticality requires height.
The content of the invention
The object of the present invention is to provide a kind of water-stop curtain constructing device and its construction method, traditional process equipment is solved
Limited technical problem.
To achieve the above object, the present invention adopts the following technical scheme that:
A kind of water-stop curtain constructing device, including drilling machine, power head, drilling rod and drill bit, uniform intervals are equipped with leaf on the drilling rod
Piece, the drilling rod have three, are the first drilling rod, the second drilling rod and the 3rd drilling rod respectively, and three drilling rod parallel intervals are set, every
Drilling rod core is equipped with slurries sebific duct and ventilating glue tube, and drilling rod, slurries sebific duct and ventilating glue tube three are coaxial, slurries sebific duct and ventilation
Along the elongated setting of drilling rod long axis direction, the top of drilling rod is equipped with the inlet connected with slurries sebific duct and connects with ventilating glue tube sebific duct
Logical air inlet, drill bit are equipped with the spray hole connected with slurries sebific duct and the fumarole connected with ventilating glue tube.
The spray hole and fumarole are concentric circles, and the spray hole aperture is 2mm~3mm, and the fumarole aperture is
6mm~8mm.
First drilling rod, the second drilling rod and the 3rd drilling rod are set in horizontal linear type, wherein the first drilling rod and the 3rd drilling rod
Drill bit is generally aligned in the same plane and higher than drill bit plane 0.8m~1.2m of the second drilling rod.
It is 2 times that the first drilling rod and the 3rd drilling rod blade set spacing that the blade of second drilling rod, which sets spacing,;First drilling rod,
15cm~30cm gaps should be left between the blade edge and drill rod body of second drilling rod and the 3rd drilling rod.
Parallel interval is provided with stabilizing bracket between first drilling rod, the second drilling rod and the 3rd drilling rod;The stabilizing bracket bag
Include three ring-shaped clips and the connecting plate being arranged between ring-shaped clip.
The lower end periphery of first drilling rod, the second drilling rod and the 3rd drilling rod is provided with bearing support.
A kind of construction method of water-stop curtain constructing device described in application, comprises the following steps that:
Step 1, carries out preceding preparation of constructing.
Step 2, carries out stake position unwrapping wire.
Step 3, excavates guide groove.
Step 4, drilling machine are in place.
Step 5, prepares cement mortar.
Step 6, spray stir into stake.
Step 7, lifts drilling rod.
Step 8, clears up drilling rod.
Step 9, repeat step four to step 8, is displaced to next width stake position by drilling machine, continues to construct.
In the step 6, when spray stirs into, three drilling rods are drilled down into while start high-pressure injection pump and air compressor machine, side
Churning side is stirred, and is crept into designed elevation, and after drilling rod drilling to completion, the original place jet agitation time is no less than 60s.
In the step 7, churning and stirring are carried out while lifting, to stop during designed elevation pumping cement mortar and
Stirring.
A footpath is reached according to design, first carries out pre- jet mixing using the water outlet of fumarole jet combination spray hole, then
Secondary jet mixing is carried out with the whitewashing of fumarole jet combination spray hole.
Compared with prior art the invention has the characteristics that and beneficial effect:
The present invention is by the use of long-spiral drilling machine as constructing device, and three auger stems are drilled down at the same time during construction, inside drilling rod
Slurries sebific duct and ventilating glue tube are set, blade is set on drilling rod, drilling rod is to different directions Stirring during construction, while bit head
Position carries out high-pressure rotary-spray, gas injection or fluid cutting soil, soil particle is stirred evenly with slurries, forms continuous sealing curtain
Curtain.The construction technology solves convention stir stake, rotary churning pile is fixed up in hard stratum area, sprays motionless problem, stratum application
Extensively, can be widely applied to banket, the sandy gravel of cohesive soil, silt, sand and block stone maximum particle diameter no more than 10cm, rubble
Layer;Its expanded diameter scope is big, is limited substantially from drilling rod scale, and pile quality is good, effect is high, due to spray stir well it is even,
Return slurry amount to lack, moreover it is possible to save cement material, reduce cost;Using a hole construction technology is socketed between stake, the spray of three axis stirs pile protection and connects shape
Into continuous water-stop curtain, it can ensure that pile body overlaps quality in the longer situation of pile body, construct in water-stop curtain engineering excellent
Gesture is especially apparent.
The stabilizing bracket of constructing device of the present invention ensures the radial positioning of drilling rod assembly, is oriented to, while increases the rigidity of drilling rod;
Supporting rack plays stake position guiding role, and rocking when reducing auger stem construction, keeps the stability of body;Carried out using sebific duct
Gas-liquid conveys, and can ensure the seal of high-pressure delivery slurries and gas, easy for installation and safe and reliable;Bit part jet
Hole is concentric with spray hole so that and high pressure sprays liquid and is surrounded by gas, that is, produces the effect of " gas bag is starched or gas bag water ", so that
Greatly improve the mix uniformity of slurries and soil particle.A footpath is reached according to design, may be selected to use " gas bag water " pre-cut
Cut, is loose, stirring, then cut again with " gas bag slurry ", is loose, stirring, being stirred so as to reach footpath bigger, cement mortar and a soil particle
Mix and be more uniformly distributed, preferably stake is stirred in spray to water-stagnating effect, the mud of displacement can by drilling rod periphery gap under the effect of gas support it is natural
Bleeding is to ground.
It the composite can be widely applied to water-stop curtain construction.
Brief description of the drawings
The present invention will be further described in detail below in conjunction with the accompanying drawings.
Fig. 1 is the structure diagram of apparatus of the present invention.
Fig. 2 is the enlarged structure schematic diagram of part A in Fig. 1.
Fig. 3 is the structure diagram of apparatus of the present invention lower part.
Fig. 4 is the structure diagram that the present invention jumps pile driving construction effect.
Fig. 5 is the structure diagram of one-sided compression method sequence construction effect of the present invention.
Reference numeral:The first drilling rods of 1-, the second drilling rods of 2-, the 3rd drilling rods of 3-, 4- inlets, 5- spray holes, 6-
Air inlet, 7- fumaroles, 8- blades, 9- drill bits, 10- stabilizing brackets, 11- bearing supports.
Embodiment
Embodiment is shown in Figure 1, this water-stop curtain constructing device, including drilling machine, power head, drilling rod and drill bit 9, institute
State uniform intervals on drilling rod and be equipped with blade 8, the drilling rod there are three, is the first drilling rod 1, the second drilling rod 2 and the 3rd drilling rod respectively
3, three drilling rod parallel intervals are set, and every drilling rod core is equipped with slurries sebific duct and ventilating glue tube, drilling rod, slurries sebific duct and ventilation
Sebific duct three is coaxial, and slurries sebific duct and ventilating glue tube are equipped with and slurries glue along the elongated setting of drilling rod long axis direction, the top of drilling rod
The inlet 4 of pipe connection and the air inlet 6 that connect with ventilating glue tube, drill bit 9 equipped with the spray hole 5 connected with slurries sebific duct and
The fumarole 7 connected with ventilating glue tube, the slurries sebific duct and ventilating glue tube are rubber tube, there is provided the bar of high-pressure delivery
Part.
Shown in Figure 2, the spray hole 5 and fumarole 7 are concentric circles, and 5 aperture of spray hole is 2mm~3mm, institute
It is 6mm~8mm to state 7 aperture of fumarole.
Shown in Figure 3, the first drilling rod 1, the second drilling rod 2 and the 3rd drilling rod 3 are set in horizontal linear type, wherein first bores
The drill bit of 1 and the 3rd drilling rod 3 of bar is generally aligned in the same plane and higher than drill bit plane 0.8m~1.2m of the second drilling rod 2;Second drilling rod
Blade set spacing to set 2 times of spacing for the first drilling rod and the 3rd drilling rod blade;First drilling rod 1, the second drilling rod 2 and the 3rd
15cm~30cm gaps should be left between the blade edge and drill rod body of drilling rod 3;First drilling rod 1, the second drilling rod 2 and
Parallel interval is provided with stabilizing bracket 10 between three drilling rods 3;The stabilizing bracket 10 includes three ring-shaped clips and is arranged on annular snap
Connecting plate between hoop;The lower end periphery of first drilling rod 1, the second drilling rod 2 and the 3rd drilling rod 3 is provided with bearing support 11, described
Bearing support includes open-close type frame body and guide plate.
The construction method of the present invention comprises the following steps that:
Step 1, carries out preparation of construction:
(1)Smooth construction site is cleared up, reaches " three supplies and one leveling " standard, and construction area underground obstacle detect clear
Reason.Each construction functional areas are rationally utilized according to construction plan, get out mechanical equipment and raw material used.Will according to specification
Ask and censorship is carried out to cement former material.
(2)Special construction plan is worked out, the disengaging route and drilling sequences of reasonable arrangement drilling machine, carry out technology before construction
Tell somebody what one's real intentions are with safety.
Step 2, carries out stake position unwrapping wire:
(1)Horizontal control point and vertical control point are put in construction area peripheral hardware, is arranged in construction area and surveys facility work baseline
And bench mark.
(2)According to the requirement of design drawing, unwrapping wire, fixed pile are carried out with total powerstation, mark is carried out on ground, is born by technology
Duty people organizes Quality Inspector, builder, class monitor and group leader to check jointly stake position, can be handled after confirmation is errorless with management or Party A
Preliminary examination signature formality.
Step 3, excavates guide groove:
According to construction area, guide groove is excavated using mini-excavator, and removes underground obstacle, trench groove soil body should and
When handle, to ensure stake machine normal construction.
Step 4, drilling machine are in place:
(1), after the unwrapping wire of stake position, drilling machine should be in place immediately.Ensure being connected firmly for drilling rod, drilling machine support is steady, in drill bit of drilling machine
Heart promise and stake site are vertical.Drilling machine will should be cleaned out before starting in drilling rod, drill bit.
(2)Drilling machine must keep fuselage steady when in place, not run-off the straight and displacement., should for accurate control drilling depth
The scale of control is made in rack, to be observed and to record in construction.Theodolite is used to be observed to ensure to bore
The verticality of machine;The spray of three axis stirs stake stake position deviations and should be less than 20mm.Pile body perpendicularity deviation is not to be exceeded 0.5%.
Step 5, prepares cement mortar:
Cement mortar stirring system is laid at the construction field (site), and system is provided with self-measuring device, nearby disposes cementing tank, starting shooting
The preceding cement grout of progress on request stirs system.According to design requirement, the cement of corresponding label is selected, according to the design ratio of mud to water
Measured with cement weight, stirred evenly in grout-stirring barrel, through 60 mesh screens, is put into pulp storage tank.Water in pulp storage tank
Mud will be stirred uninterruptedly, prevent cement mortar from precipitating.High-pressure injection pump is covered with detailed catalogue gauze, prevents from having in pulp storage tank thick
Particulate matter suction grouting pump blocks the nozzle at drill bit.After cement mortar prepares, dead time must not exceed 2 it is small when, overlap joint is applied
The adjacent curtain pile driving construction interval of work must not exceed 24 it is small when(Presetting period).
Step 6, technical testing pile:
Test pile is carried out before going into operation, to grasp three axis spray mixing pile technical parameters of the construction site, such as Mortar mix proportion, lifting speed
Degree, spray stir pass etc., and result of the test is used as manufacture bases after engineer ratifies, and carries out technology friendship to construction personnel in time
Bottom.
Step 7, spray stir into stake:
Three axles drilling rod is drilled down into while starts high-pressure injection pump and air compressor machine, is stirred in churning, creeps into designed elevation, bores
After having drilling to completion, the original place jet agitation time is no less than 60s, by experiment lifting speed lifting drilling tool, in the same of lifting
Shi Jinhang churnings and stirring, to stopping pumping cement mortar and stirring during designed elevation.Ensure that equipment operation is normal, grout pipe line
It is unimpeded, it is normal for starching.
First by " gas bag water " precut, loose, stirring, then cut again with " gas bag slurry ", is loose, stirring, displacement
Mud can by drilling rod periphery gap under the effect of gas support natural bleeding to ground.Determine that spray is stirred time according to test pile and strata condition
Number, to stopping pumping cement mortar and stirring during designed elevation.
Step 8, cleaning drilling rod displacement:
After drilling rod proposes, surface dust on drilling rod is cleaned out, checks bit nozzle, it is ensured that it is unimpeded, it is displaced to next width stake position.Can
According to specific formation condition, selection jumps and plays construction.
Using a hole construction technology is socketed between stake, it can use and jump pile driving construction(It is shown in Figure 4), can also use one-sided compression
Method sequence construction(It is shown in Figure 5).
Claims (10)
1. a kind of water-stop curtain constructing device, including drilling machine, power head, drilling rod and drill bit(9), uniform intervals are set on the drilling rod
There is blade(8), it is characterised in that:The drilling rod has three, is the first drilling rod respectively(1), the second drilling rod(2)With the 3rd drilling rod
(3), three drilling rod parallel intervals set, and every drilling rod core is equipped with slurries sebific duct and ventilating glue tube, drilling rod, slurries sebific duct and lead to
Gas sebific duct three is coaxial, and slurries sebific duct and ventilating glue tube are along the elongated setting of drilling rod long axis direction, and the top of drilling rod is equipped with and slurries
The inlet of sebific duct connection(4)The air inlet connected with ventilating glue tube(6), drill bit(9)It is equipped with what is connected with slurries sebific duct
Spray hole(5)The fumarole connected with ventilating glue tube(7).
2. water-stop curtain constructing device according to claim 1, it is characterised in that:The spray hole(5)And fumarole(7)
For concentric circles, the spray hole(5)Aperture is 2mm~3mm, the fumarole(7)Aperture is 6mm~8mm.
3. water-stop curtain constructing device according to claim 1, it is characterised in that:First drilling rod(1), the second drilling rod(2)
With the 3rd drilling rod(3)Set in horizontal linear type, wherein the first drilling rod(1)With the 3rd drilling rod(3)Drill bit be generally aligned in the same plane,
And it is higher than the second drilling rod(2)Drill bit plane 0.8m~1.2m.
4. water-stop curtain constructing device according to claim 1, it is characterised in that:The blade of second drilling rod sets the spacing to be
First drilling rod and the 3rd drilling rod blade set 2 times of spacing;
First drilling rod(1), the second drilling rod(2)With the 3rd drilling rod(3)Blade edge and drill rod body between should leave 15cm~
30cm gaps.
5. water-stop curtain constructing device according to claim 1, it is characterised in that:First drilling rod(1), the second drilling rod
(2)With the 3rd drilling rod(3)Between parallel interval be provided with stabilizing bracket(10);
The stabilizing bracket(10)Including three ring-shaped clips and the connecting plate being arranged between ring-shaped clip.
6. water-stop curtain constructing device according to claim 1, it is characterised in that:First drilling rod(1), the second drilling rod
(2)With the 3rd drilling rod(3)Lower end periphery be provided with bearing support(11).
7. a kind of construction method of water-stop curtain constructing device using described in claim 1 to 6 any one, its feature exist
In comprising the following steps that:
Step 1, carries out preceding preparation of constructing;
Step 2, carries out stake position unwrapping wire;
Step 3, excavates guide groove;
Step 4, drilling machine are in place;
Step 5, prepares cement mortar;
Step 6, spray stir into stake;
Step 7, lifts drilling rod;
Step 8, clears up drilling rod;
Step 9, repeat step four to step 8, is displaced to next width stake position by drilling machine, continues to construct.
8. construction method according to claim 7, it is characterised in that:In the step 6, when spray stirs into, three drilling rods
It is drilled down into while starts high-pressure injection pump and air compressor machine, stirred in churning, crept into designed elevation, it is deep that drilling rod is drilled into design
After degree, the original place jet agitation time is no less than 60s.
9. construction method according to claim 7, it is characterised in that:In the step 7, revolved while lifting
Spray and stirring, to stopping pumping cement mortar and stirring during designed elevation.
10. construction method according to claim 7, it is characterised in that:A footpath is reached according to design, first using jet
Hole jet combination spray hole water outlet carries out pre- jet mixing, then carries out secondary churning with the whitewashing of fumarole jet combination spray hole and stir
Mix.
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Cited By (6)
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CN109024643A (en) * | 2018-08-09 | 2018-12-18 | 中国地质大学(北京) | A kind of water-stop curtain constructing device, equipment and waterproof curtain construction method |
CN109306849A (en) * | 2018-11-30 | 2019-02-05 | 谢时雳 | The constructing device and construction method of underground anti-seepage curtain |
CN110331698A (en) * | 2019-06-11 | 2019-10-15 | 徐州工程学院 | A kind of system that polyurethane formation curtain was constructed and be rapidly injected to casement |
CN110747847A (en) * | 2019-10-24 | 2020-02-04 | 湖北盛达泰水利水电工程有限公司 | Double-pipe high-pressure jet grouting construction method for building impervious wall in soft foundation |
CN111236246A (en) * | 2020-01-14 | 2020-06-05 | 广州坚磊建设有限公司 | Method for constructing waterproof curtain of foundation pit |
CN114703881A (en) * | 2022-04-18 | 2022-07-05 | 山西建筑工程集团有限公司 | Construction method of waterproof curtain containing confined water hard stratum and triaxial mixing pile device |
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