CN206448273U - A kind of continuous steel frame aqueduct GG2# pier foundation grouting systems - Google Patents
A kind of continuous steel frame aqueduct GG2# pier foundation grouting systems Download PDFInfo
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- CN206448273U CN206448273U CN201620866475.3U CN201620866475U CN206448273U CN 206448273 U CN206448273 U CN 206448273U CN 201620866475 U CN201620866475 U CN 201620866475U CN 206448273 U CN206448273 U CN 206448273U
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- grouting
- grout
- slurry
- steel frame
- continuous steel
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Abstract
The utility model belongs to the technical field of construction of continuous steel frame aqueduct, the problem of in order to solve to lead to not construction because water yield is excessive away from the pile foundation at the rich water such as reservoir source, the utility model provides a kind of continuous steel frame aqueduct GG2# pier foundation grouting systems, including the mixer being sequentially connected by feed pipe for mortar, material storage tube, grouting pump and slurry-inlet valve, Grout-jetting pipe is connected with slurry-inlet valve, the output end grout pipe line of the grouting pump is provided with flowmeter, pressure gauge and pressure valve.Timely adjustment can be made according to the grouting pressure in actual grout pipe line and overfall pipeline and flow using the grouting system, be particularly suitable for use in the grout hole for needing stages cycle to be in the milk, using the system in addition to it can monitor adjustment grouting flow and pressure, moreover it is possible to adjust concentration of slurry in time according to Monitoring Data.And the system can in real time record and preserve data message, it is the improvement of plasma pouring constructing skill and favourable auxiliary is made to analysis of hydrogeology etc. at pile foundation construction.
Description
Technical field
The utility model belongs to the technical field of construction of continuous steel frame aqueduct, and in particular to a kind of continuous steel frame aqueduct GG2#
Pier foundation grouting system.
Background technology
Waterproof must be carried out with devices such as casings because pile foundation depth is generally large, in borehole work progress, prevents gushing the pre- of sand
Processing.But for the part pile foundation nearer from rich water source, in excavation pile construction, conventional steel pile casting device, which is dug, can not prevent solution
Certainly big water burst accident, may cause pile foundation can not continue construction, influence construction speed, or even trigger security incident.Such as Xu Jia
The gulf aqueduct GG2# high 92m of main pier, basis is pile foundation support table structure, and the pier has circle 2m diameters pile foundation 12, using excavated by manual work
Hole method construction.Design of pile top elevation is 1184.76m, and stake bottom design altitude is 1168.06m, and each stake insertion rock saturation single shaft resists
Compressive Strength is not less than 35Mpa weak more than weathering argillaceous limestone depth 6m.Single designing pile length is 16.7m, total long 200.4m of stake.
GG2# piers are 1175.71m apart from A Zhu reservoirs only 21.3m, reservoir level elevation, easily stake occur when causing pile foundation borehole to be constructed
In hole the problem of water burst, cause part pile foundation borehole construction can not continue construction, underwater gliders need to be carried out to pile foundation
It can continue to excavate.
The content of the invention
The utility model in order to solve away from pile foundation nearer at the rich water such as reservoir source lead to not because water yield is excessive construction
The problem of, and then there is provided a kind of continuous steel frame aqueduct GG2# pier foundation grouting systems.
The utility model is adopted the following technical scheme that：
A kind of continuous steel frame aqueduct GG2# pier foundation grouting systems, including be sequentially connected by feed pipe for mortar mixer, deposit
Grout-jetting pipe is connected with charging basket, grouting pump and slurry-inlet valve, slurry-inlet valve, the output end grout pipe line of the grouting pump is provided with flow
Meter, pressure gauge and pressure valve.
Return pipe is connected with the material storage tube, overfall pipeline is provided with flowmeter.
Automatic recording instrument is connected with the flowmeter and pressure gauge.
The input grout pipe line of the slurry-inlet valve is provided with waster valve.
Provided with control flowmeter and transfer pressure table and related control valve etc. in grouting system described in the utility model,
Timely adjustment can be made according to the grouting pressure in actual grout pipe line and overfall pipeline and flow, being particularly suitable for use in needs segmentation
The grout hole of cycle grouting, using the system in addition to it can monitor adjustment grouting flow and pressure, moreover it is possible to according to Monitoring Data and
When adjust concentration of slurry.
The system is provided with automatic recording instrument, and data when being in the milk can be carried out to record preservation and analyzed, be grouting construction skill
Favourable auxiliary is made in the improvement of art and analysis etc. to hydrogeology at pile foundation construction.
Brief description of the drawings
Fig. 1 is the connection diagram of grouting system；
Fig. 2 is GG1# pier foundation groutings hole horizontal layout schematic diagram；
In figure：3- grout holes, 4- stop grouting plugs, 5- Grouting Pipes, 6- return pipes, 7- Grout-jetting pipes, 8- slurry-inlet valves, 9- waster valves,
10- automatic recording instruments, 11- flowmeters, 13- pressure gauges, 14- pressure valve, 15- grouting pumps, 16- material storage tubes, 17- mixers.
Embodiment
Continuous steel frame aqueduct GG2# pier foundation grouting systems as shown in Figure 1, including pass through stirring that feed pipe for mortar is sequentially connected
Mix and Grout-jetting pipe 7 is connected with machine 17, material storage tube 16, grouting pump 15 and slurry-inlet valve 8, slurry-inlet valve 8, the output end of the grouting pump 15
Grout pipe line is provided with flowmeter 11, pressure gauge 13 and pressure valve 14.
Return pipe 6 is connected with the material storage tube 16, overfall pipeline is provided with flowmeter 11.It will can be in the milk using return pipe
Unnecessary slurries in hole are counter to be arranged, and is measured in real time using flowmeter and adjusted the flow in overfall pipeline.
Automatic recording instrument 10 is connected with the flowmeter 11 and pressure gauge 13.Can be by grout pipe line and overfall pipeline
Pressure and data on flows carry out record observation analysis.
The input grout pipe line of the slurry-inlet valve 8 is provided with waster valve 9.When defeated slurry flow is excessive or pipeline inner pressure mistake
When big, grout pipe line is unloaded by waster valve 9.Meanwhile, when being monitored using the flowmeter of overfall pipeline, when discovery grouting
When slurries in hole are excessive, waster valve can also be used and is discharged, reduce defeated slurry amount.
As shown in Fig. 2 being the stake of nearly water because 1#, 5#, 9# of continuous steel frame aqueduct GG2# pier grounds hollow out stake, grout hole is used
Single arrangement；Pitch of holes 3.0m, amounts to 9 holes, aperture 91mm.Each grout hole perforate elevation of GG2# pier foundations is existing ground, hole
Depth is 24m, wherein the effective hole depth 15m of single hole, invalid hole depth 9m；Total hole depth 216m, wherein effective hole 135m, invalid hole depth
81m.Grouting is divided into the construction of 2 phases, and the 1st phase was 1#~3# holes, 7#~9# holes；2nd phase was 4#~6# holes,.Each issue of three sequence of grouting point
Construction, and each grout hole takes the mode that stages cycle is in the milk, Grouting Cement concentration of slurry during cycle grouting is thickened by dilute,
Convert step by step, the grey weight ratio of the Grouting Cement slurry water uses 3:1、2:1、1:1、0.8:1、0.5:1 totally five compare level, initially
3 are used than level:1.
The conversion principle of the cement grout is：
（1）In filling process, certain is more than 300L or injection length up to 1 hour, grouting pressure than level slurries injection rate
With injection rate it is unchanged or change it is unobvious, change the slurries for noting dense one-level；Flow rate of grouting is controlled by 15~30L/min, maximum
Flow rate of grouting is no more than 50L/min；
（2）When using most dense rank cement mortar after, still occur grouting pressure and injection rate it is unchanged or change not
During obvious situation, slurries, modulus of water glass 2.4-3.4, concentration 30-45 Baume degrees are configured as accelerator using waterglass；
（3）After the cement-water-clay system of most dense rank is used, still there is grouting pressure and injection rate is unchanged
Or when changing unconspicuous situation, using M10 Portland cements（P.O 42.5R）Mortar is irrigated, grid mould
Number 2.0-2.2；
（4）When grouting pressure keeps constant and injection rate persistently reduces or injection rate keeps constant grouting pressure persistently to increase
When big, it must not change and compare level；Grouting pressure is found during grouting, injection rate suddenly change is larger or single hole grout consumption is more than 20t
When being not improved, stop grouting, and ascertain the reason.
The grout compartment segmentation segment length of the grout hole is 5m, each grout hole point 3 grout compartments, if run into solution cavity, tomography,
Situations such as weak intercalated layer, segmentation segment length is no more than 3m.
Therefore, using grouting system described in the utility model can be during effective monitoring cycle grouting grouting pressure and
Flow, to make timely adjustment to concentration of slurry.
Wherein, Grout-jetting pipe during grouting cannot be greater than 50cm apart from grout hole bottom hole, prevent what regional area leakage was filled
Phenomenon.
It is prior art not make component or device of specified otherwise etc. in the utility model.
Claims (4)
1. a kind of continuous steel frame aqueduct GG2# pier foundation grouting systems, it is characterised in that：Including what is be sequentially connected by feed pipe for mortar
Mixer（17）, material storage tube（16）, grouting pump（15）And slurry-inlet valve（8）, slurry-inlet valve（8）On be connected with Grout-jetting pipe（7）, the note
Stock pump（15）Output end grout pipe line be provided with flowmeter（11）, pressure gauge（13）And pressure valve（14）.
2. continuous steel frame aqueduct GG2# pier foundation grouting systems according to claim 1, it is characterised in that：The material storage tube
（16）On be connected with return pipe（6）, overfall pipeline is provided with flowmeter（11）.
3. continuous steel frame aqueduct GG2# pier foundation grouting systems according to claim 2, it is characterised in that：The flowmeter
（11）And pressure gauge（13）On be connected with automatic recording instrument（10）.
4. continuous steel frame aqueduct GG2# pier foundation grouting systems according to claim 3, it is characterised in that：The slurry-inlet valve
（8）Input grout pipe line be provided with waster valve（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620866475.3U CN206448273U (en) | 2016-08-11 | 2016-08-11 | A kind of continuous steel frame aqueduct GG2# pier foundation grouting systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620866475.3U CN206448273U (en) | 2016-08-11 | 2016-08-11 | A kind of continuous steel frame aqueduct GG2# pier foundation grouting systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206448273U true CN206448273U (en) | 2017-08-29 |
Family
ID=59662645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620866475.3U Expired - Fee Related CN206448273U (en) | 2016-08-11 | 2016-08-11 | A kind of continuous steel frame aqueduct GG2# pier foundation grouting systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206448273U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801404A (en) * | 2018-06-14 | 2018-11-13 | 中国三峡建设管理有限公司 | Be in the milk unit stream gauge calibration device and method |
| CN110374083A (en) * | 2019-07-11 | 2019-10-25 | 长沙理工大学 | A kind of double pressure-controlled impact extrusion grouting system and its construction method |
-
2016
- 2016-08-11 CN CN201620866475.3U patent/CN206448273U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801404A (en) * | 2018-06-14 | 2018-11-13 | 中国三峡建设管理有限公司 | Be in the milk unit stream gauge calibration device and method |
| CN110374083A (en) * | 2019-07-11 | 2019-10-25 | 长沙理工大学 | A kind of double pressure-controlled impact extrusion grouting system and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170829 |