CN103205986A - Concrete raft foundation construction-joint grouting device and construction method - Google Patents
Concrete raft foundation construction-joint grouting device and construction method Download PDFInfo
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- CN103205986A CN103205986A CN2013101298403A CN201310129840A CN103205986A CN 103205986 A CN103205986 A CN 103205986A CN 2013101298403 A CN2013101298403 A CN 2013101298403A CN 201310129840 A CN201310129840 A CN 201310129840A CN 103205986 A CN103205986 A CN 103205986A
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Abstract
The invention discloses a concrete raft foundation construction-joint grouting device and a construction method. The concrete raft foundation construction-joint grouting device comprises a water-proof layer, a water-proof reinforcing layer and a lower-layer two-way reinforcement. The water-proof layer is mounted at the bottom of the concrete raft foundation. The water-proof reinforcing layer is arranged on the water-proof layer. The lower-layer two-way reinforcement and an upper-layer two-way reinforcement are arranged on the water-proof reinforcing layer. A vertical reinforcement and a horizontal reinforcement are arranged between the lower-layer two-way reinforcement and the upper-layer two-way reinforcement. A grouting pipe is fixed on the horizontal reinforcement. Grouting boxes are fixed on the upper-layer two-way reinforcement. Grouting box holes are arranged at the bottoms of the grouting boxes. Two ends of the grouting pipe penetrate through the grouting box holes of the grouting boxes and the grouting pipe is in a U shape. The concrete raft foundation construction-joint grouting device has the advantages that manufacturing is simple, mounting is facilitated; and water-proof and leakage-proof effects of the concrete raft foundation construction-joints are good, investment cost is low and construction efficiency is improved.
Description
Technical field
The present invention and a kind of civil engineering device and method especially relate to concrete raft foundation constuction joint place's grouting device and the job practices of a kind of concrete raft foundation constuction joint place seepage.
Background technology
Development along with the civil engineering technology, reinforced concrete raft foundation basic increasing, in work progress, produce problems such as crack in order to prevent that differential settlement of buildings or primary concreting concrete are excessive, generally can the ater-casting be set with large-scale raft foundation morsel or at the concrete raft foundation, yet subregion is built and can be formed constuction joint, so that the waterproofing work at constuction joint place just seems is particularly important.At present, the method that the waterproofing work of raft foundation foundation construction seam all employs prevention, namely bury waterstop underground at constuction joint place concrete raft based structures middle part, if but the constuction joint place is well infirm, tend to occur drainage, in case raft foundation constuction joint place seepage, its leak stopping difficulty is very big, the leak stopping disposal cost is high and time-consuming, and operational sequence is loaded down with trivial details, have potential safety hazard, input cost is big.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, and provide a kind of making simple, easy for installation, leak stopping is convenient, and plugging effect is good, saves the concrete raft foundation constuction joint place grouting device of duration and expense.
Concrete raft foundation constuction joint of the present invention place grouting device, the bottom is waterproofing course, be provided with the waterproof reinforced layer above the described waterproofing course, be provided with lower floor's two-way concrete slab and upper strata two-way concrete slab above the described waterproof reinforced layer, be provided with vertical reinforcement and horizontal reinforcement between described lower floor two-way concrete slab and the upper strata two-way concrete slab, Grouting Pipe is fixedly arranged on the described horizontal reinforcement, on the two-way concrete slab of described upper strata the slip casting box is arranged fixedly, described slip casting box bottom is provided with slip casting box hole, and described Grouting Pipe is passed the slip casting box hole of slip casting box.Described Grouting Pipe is made up of Grouting Pipe PVC hard tube, flap valve, big injected hole and nylon mesh, described Grouting Pipe PVC hard tube center is provided with big injected hole, be evenly equipped with three little injected holes around the described big injected hole, the described little injected hole outside is equipped with flap valve, and described Grouting Pipe outside is provided with one deck nylon mesh.Described waterproofing course and waterproof reinforced layer are rubber fastening band.Described flap valve is fan-shaped rubber flap valve.Be cement mortar between described waterproofing course and the waterproof reinforced layer.
The present invention also provides a kind of concrete raft foundation constuction joint place grouting method, and this method comprises the steps:
A, at concrete raft plate base bed course waterproofing course is installed, on waterproofing course, is coated with the last layer cement mortar, the waterproof reinforced layer is set on waterproofing course.
B, on the waterproof reinforced layer colligation lower floor two-way concrete slab and upper strata two-way concrete slab, between lower floor's two-way concrete slab and upper strata two-way concrete slab, weld fixedly vertical reinforcement and horizontal reinforcement, again the slip casting box is fixed on the two-way concrete slab of upper strata, the slip casting box hole of Grouting Pipe being passed slip casting box bottom is laid on the horizontal reinforcement, and fixedly is close to the tape edge of pouring concrete formerly;
C, after setting completed builds first concreting, and formerly the middle part of concreting arranges ribbet together, to first concreting maintenance 7 ~ 10 days, builds the back pouring concrete again;
When the raft foundation seepage of d, piecemeal needs slip casting, with this piece raft foundation constuction joint place Grouting Pipe be connected with high-pressure injection pump, and slip casting in the big injected hole of Grouting Pipe, slurries are by little injected hole, back down fan-shaped rubber flap valve, by nylon mesh, flow to the leakage area at constuction joint place again, realize leak stopping;
When e, slip casting, after the other end observation of Grouting Pipe is emitted slurry, emitted slurry, block one that emits slurry, pressurization again seals the grouting mouth again, gets final product slit and the cavity in sealing joints zone, and stops leak source.
The mass ratio of cement mortar is concrete grey: water=1:3 among the described step a.The top of described Grouting Pipe exceeds raft foundation surface 100mm.Described big injected hole diameter is 6mm, and little injected hole diameter is 3mm.
The invention has the beneficial effects as follows: (1) makes simple, and is easy for installation; (2) concrete raft foundation constuction joint place's water shutoff good leak-proof effect, input cost is low, and can improve engineering efficient.
Description of drawings
Fig. 1 is the front view of concrete raft foundation constuction joint of the present invention place grouting device.
Fig. 2 is the sectional view of concrete raft foundation constuction joint of the present invention place grouting device.
Fig. 3 is the sectional view of the Grouting Pipe of concrete raft foundation constuction joint of the present invention place grouting device.
Among the figure: waterproofing course 1, waterproof reinforced layer 2, lower floor's two-way concrete slab 3, upper strata two-way concrete slab 4, first concreting 5, after-pouring concrete 6, Grouting Pipe 7, vertical reinforcement 8, horizontal reinforcement 9, slip casting box 10, Grouting Pipe PVC hard tube 11, fan-shaped rubber flap valve 12, big injected hole 13, nylon mesh 14, little injected hole 15, slip casting box hole 16.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further.
In the drawings, concrete raft foundation constuction joint of the present invention place grouting device mainly is made up of waterproofing course 1, waterproof reinforced layer 2, lower floor's two-way concrete slab 3, upper strata two-way concrete slab 4, first concreting 5, after-pouring concrete 6, Grouting Pipe 7, vertical reinforcement 8, horizontal reinforcement 9, slip casting box 10, Grouting Pipe PVC hard tube 11, fan-shaped rubber flap valve 12, big injected hole 13, nylon mesh 14, little injected hole 15, slip casting box hole 16.
Described device bottom is waterproofing course 1, be provided with waterproof reinforced layer 2 above the described waterproofing course 1, be provided with lower floor's two-way concrete slab 3 and upper strata two-way concrete slab 4 above the described waterproof reinforced layer 2, be provided with vertical reinforcement 8 and horizontal reinforcement 9 between described lower floor two-way concrete slab 3 and the upper strata two-way concrete slab 4, on the described horizontal reinforcement 9 Grouting Pipe 7 is arranged fixedly, on the described upper strata two-way concrete slab 4 slip casting box 10 is arranged fixedly, described slip casting box 10 bottoms are provided with slip casting box hole 16, and described Grouting Pipe 7 is passed the slip casting box hole of two slip casting boxes 10.
Described Grouting Pipe 7 is made up of Grouting Pipe PVC hard tube 11, flap valve 12, big injected hole 13 and nylon mesh 14, described Grouting Pipe PVC hard tube 11 centers are provided with big injected hole 13, be evenly equipped with three little injected holes 15 around the described big injected hole 13, described little injected hole 15 outsides are equipped with flap valve 12, and described Grouting Pipe 7 outsides are provided with one deck nylon mesh 14.Described waterproofing course 1 and waterproof reinforced layer 2 are rubber fastening band.Described flap valve 12 is fan-shaped rubber flap valve.Be cement mortar between described waterproofing course 1 and the waterproof reinforced layer 2.
Concrete raft foundation constuction joint of the present invention place grouting device is made simple, and is easy for installation, concrete raft foundation constuction joint place's water shutoff good leak-proof effect, and input cost is low, saves duration and expense, improves engineering efficient.
A kind of concrete raft foundation constuction joint place grouting method, this method comprises the steps:
A, at concrete raft plate base bed course waterproofing course 1 is installed, on waterproofing course 1, is coated with the cement mortar that the last layer mass ratio is concrete grey: water=1:3, the wide waterproof reinforced layer 2 of 250mm is set on waterproofing course 1;
B, on waterproof reinforced layer 2 colligation lower floor two-way concrete slab 3 and upper strata two-way concrete slab 4, between lower floor's two-way concrete slab 3 and upper strata two-way concrete slab 4, spacing 500mm welding fixed diameter is 16mm vertical reinforcement 8 and horizontal reinforcement 9, again slip casting box 10 is fixed on the upper strata two-way concrete slab 4, the slip casting box hole 16 of Grouting Pipe 7 being passed slip casting box 10 bottoms is laid on the horizontal reinforcement 9, and fixedly be close to the tape edge of pouring concrete 5 formerly, the top of Grouting Pipe 7 exceeds raft foundation surface 100mm;
C, after setting completed builds first concreting 5, and formerly the middle part of concreting 5 arranges long 300mm ribbet together, to first concreting 5 maintenances 8 days, builds pouring concrete 6 afterwards again;
When the raft foundation seepage of d, piecemeal needs slip casting, with this piece raft foundation constuction joint place Grouting Pipe 7 be connected with high-pressure injection pump, and be slip castings in the big injected hole 13 of 6mm to the diameter of Grouting Pipe 7, slurries are the little injected hole 15 of 3mm by diameter, back down fan-shaped rubber flap valve 12, by nylon mesh 14, flow to the leakage area at constuction joint place again, realize leak stopping;
When e, slip casting, after the other end observation of Grouting Pipe 7 is emitted slurry, emitted slurry, block one that emits slurry, pressurization again seals the grouting mouth again, gets final product slit and the cavity in sealing joints zone, and stops leak source.
Claims (9)
1. concrete raft foundation constuction joint place grouting device, it is characterized in that, described device bottom is waterproofing course (1), be provided with waterproof reinforced layer (2) above the described waterproofing course (1), be provided with lower floor's two-way concrete slab (3) and upper strata two-way concrete slab (4) above the described waterproof reinforced layer (2), be provided with vertical reinforcement (8) and horizontal reinforcement (9) between described lower floor two-way concrete slab (3) and the upper strata two-way concrete slab (4), described horizontal reinforcement (9) is gone up fixedly Grouting Pipe (7), described upper strata two-way concrete slab (4) is gone up fixedly slip casting box (10), described slip casting box (10) bottom is provided with slip casting box hole (16), and described Grouting Pipe (7) is passed the slip casting box hole (16) of slip casting box (10).
2. concrete raft foundation constuction joint according to claim 1 place grouting device, it is characterized in that, described Grouting Pipe (7) is made up of Grouting Pipe PVC hard tube (11), flap valve (12), big injected hole (13) and nylon mesh (14), described Grouting Pipe PVC hard tube (11) center is provided with big injected hole (13), described big injected hole (13) is evenly equipped with three little injected holes (15) on every side, described little injected hole (15) outside is equipped with flap valve (12), and described Grouting Pipe (7) outside is provided with one deck nylon mesh (14).
3. concrete raft foundation constuction joint according to claim 1 place grouting device is characterized in that described waterproofing course (1) and waterproof reinforced layer (2) are rubber fastening band.
4. concrete raft foundation constuction joint according to claim 1 place grouting device is characterized in that described flap valve (12) is fan-shaped rubber flap valve.
5. concrete raft foundation constuction joint according to claim 1 place grouting device is characterized in that, is cement mortar between described waterproofing course (1) and the waterproof reinforced layer (2).
6. a concrete raft foundation constuction joint according to claim 1 place grouting method is characterized in that this method comprises the steps:
A, at concrete raft plate base bed course waterproofing course (1) is installed, on waterproofing course (1), is coated with the last layer cement mortar, waterproof reinforced layer (2) is set on waterproofing course (1);
B, on waterproof reinforced layer (2) colligation lower floor two-way concrete slab (3) and upper strata two-way concrete slab (4), between lower floor's two-way concrete slab (3) and upper strata two-way concrete slab (4), weld fixedly vertical reinforcement (8) and horizontal reinforcement (9), again slip casting box (10) is fixed on the upper strata two-way concrete slab (4), the slip casting box hole (16) of Grouting Pipe (7) being passed slip casting box (10) bottom is laid on the horizontal reinforcement (9), and fixedly is close to the tape edge of pouring concrete (5) formerly;
C, after setting completed builds first concreting (5), and formerly the middle part of concreting (5) arranges ribbet together, to first concreting (5) maintenance 7 ~ 10 days, builds back pouring concrete (6) again;
When the raft foundation seepage of d, piecemeal needs slip casting, the Grouting Pipe (7) at this piece raft foundation constuction joint place is connected with high-pressure injection pump, and to the interior slip casting of big injected hole (13) of Grouting Pipe (7), slurries are by little injected hole (15), back down fan-shaped rubber flap valve (12), by nylon mesh (14), flow to the leakage area at constuction joint place again, realize leak stopping;
When e, slip casting, after the other end observation of Grouting Pipe (7) is emitted slurry, emitted slurry, block one that emits slurry, pressurization again seals the grouting mouth again, gets final product slit and the cavity in sealing joints zone, and stops leak source.
7. concrete raft foundation constuction joint according to claim 6 place grouting method is characterized in that the mass ratio of cement mortar is concrete grey: water=1:3 among the described step a.
8. concrete raft foundation constuction joint according to claim 6 place grouting method is characterized in that, the top of described Grouting Pipe (7) exceeds raft foundation surface 100mm.
9. concrete raft foundation constuction joint according to claim 6 place grouting method is characterized in that described big injected hole (13) diameter is 6mm, and little injected hole (15) diameter is 3mm.
Priority Applications (1)
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| CN2013101298403A CN103205986A (en) | 2013-04-16 | 2013-04-16 | Concrete raft foundation construction-joint grouting device and construction method |
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| CN2013101298403A CN103205986A (en) | 2013-04-16 | 2013-04-16 | Concrete raft foundation construction-joint grouting device and construction method |
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Cited By (5)
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| CN103741695A (en) * | 2013-11-29 | 2014-04-23 | 中交第二航务工程局有限公司 | Embedded grouting pipe installed on waterstop and grouting method |
| CN107059912A (en) * | 2017-03-20 | 2017-08-18 | 中国十七冶集团有限公司 | A kind of people's goods elevator foundation slip casting reinforcing and processing method for being seated soft soil horizon |
| CN107345405A (en) * | 2016-05-04 | 2017-11-14 | 中国十七冶集团有限公司 | Grouting method at concrete raft foundation construction joint |
| CN107795021A (en) * | 2016-08-30 | 2018-03-13 | 盛世安泰建筑工程（北京）有限公司 | Minimally invasive leak stopping system and its construction technology |
| CN110080714A (en) * | 2019-04-04 | 2019-08-02 | 中勘资源勘探科技股份有限公司 | The construction technology of ground grout leak stopping in Grouting engineering is isolated in a kind of overlying strata |
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| CN203583524U (en) * | 2013-11-28 | 2014-05-07 | 中铁二十局集团第五工程有限公司 | Waterproof structure for annular construction joints of peat soft soil stratum subway station |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741695A (en) * | 2013-11-29 | 2014-04-23 | 中交第二航务工程局有限公司 | Embedded grouting pipe installed on waterstop and grouting method |
| CN107345405A (en) * | 2016-05-04 | 2017-11-14 | 中国十七冶集团有限公司 | Grouting method at concrete raft foundation construction joint |
| CN107795021A (en) * | 2016-08-30 | 2018-03-13 | 盛世安泰建筑工程（北京）有限公司 | Minimally invasive leak stopping system and its construction technology |
| CN107059912A (en) * | 2017-03-20 | 2017-08-18 | 中国十七冶集团有限公司 | A kind of people's goods elevator foundation slip casting reinforcing and processing method for being seated soft soil horizon |
| CN110080714A (en) * | 2019-04-04 | 2019-08-02 | 中勘资源勘探科技股份有限公司 | The construction technology of ground grout leak stopping in Grouting engineering is isolated in a kind of overlying strata |
| CN110080714B (en) * | 2019-04-04 | 2021-07-20 | 中勘资源勘探科技股份有限公司 | Construction process for stopping leakage of slurry from ground in overlying strata isolation grouting engineering |
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Application publication date: 20130717 |