CN201801861U - Repeated self-adaptive grouting system - Google Patents
Repeated self-adaptive grouting system Download PDFInfo
- Publication number
- CN201801861U CN201801861U CN2010202124129U CN201020212412U CN201801861U CN 201801861 U CN201801861 U CN 201801861U CN 2010202124129 U CN2010202124129 U CN 2010202124129U CN 201020212412 U CN201020212412 U CN 201020212412U CN 201801861 U CN201801861 U CN 201801861U
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- grouting
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- pipe
- grouting pipe
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Abstract
The utility model discloses a repeated self-adaptive grouting system. The grouting system is an open-circuit or closed-circuit grouting system including a grouting pipe with a pressure opening non-return valve, an adjustable pressure grouting pump, a cleaning pump and an anchor eye, and the grouting system is used for performing repeated self-adaptive secondary fracture grouting to an anchor rod received anchor rod pore-forming grouting yet. The pressure grouting pump is adjusted for changing grouting valves in different positions of a fracture grouting pressure-opening grouting pipe, so as to achieve fracture grouting in specific positions, then the grouting pipe is cleaned by the cleaning pump, and the pressure grouting pump is repeatedly adjusted so as to open the grouting valves in different positions under difference pressures for one more fracture grouting, and the process is repeated to meet the design requirements of repeated grouting fracturing. By adopting the system and the working method, the repeated segmental fractional pressure grouting fracturing to the anchor rod can be eventually realized, the side frictional resistance is increased, the load-bearing capacity of the anchor rod is improved, and the deformation of the anchor rod is reduced, thereby effectively strengthening soft soil and rock and enhancing the whole anchorage system.
Description
Technical field
The utility model belongs to a kind of ground and handles slurry injection technique, particularly a kind of repetition self adaptation filling system.
Background technology
In field of civil engineering, repeating the fracture grouting technology in the support system that ground is handled is widely used, when passing through soft layer and rock stratum situation for anchor rod anchored section, because the rock-soil layer shear strength is low, moisture content is higher, and the anchoring body that can provide-soil body side friction is also lower, therefore cause anchor pole tension bearing capacity lower, because the deformation of creep of the weak rocks soil body is bigger, cause bolt deformation also bigger simultaneously, thus the safety that jeopardizes whole anchoring system.For these rough sledding of good processing, secondary or repeatedly fracture grouting technology extensive use, with the geotechnical body in the certain limit around the reinforcing anchoring body, improve anchor pole geotechnical body shear strength on every side, reduce the geotechnical body deformation of creep, improve the anchor pole bearing capacity, increase whole anchor structure safety thereby reduce bolt deformation.
Representative device commonly used at present has the simple and easy secondary fracture grouting of multitube worker's method and sleeve valve pipe can repeat fracture grouting worker method etc., and there is certain deficiency in these secondary splittings worker method:
1) when adopting the simple and easy secondary fracture grouting of multitube technology, need be according to the packer grouting quantity many Grouting Pipe that installation length differs in bolthole.Though this technology is simple to operate, the segmenting slip casting quality is comparatively reliable, but shortcoming is the anchor hole diameter is generally 130～180mm, for guaranteeing the anchor rod anchored section certain net sectional area in cross section, then generally can't install and surpass 2 Grouting Pipe, only can carry out 2 sections slip castings, otherwise will be excessive to the loss of anchor rod anchored body net sectional area, influence the anchor pole bearing capacity.
2) when adopting sleeve valve pipe to carry out segmented slip casting, can carry out multisection type slip casting, but sleeve valve pipe caliber is bigger,, easily causes anchor rod anchored body net sectional area loss to influence anchor pole bearing capacity situation during less bolthole aperture generally greater than 50mm according to its structure.The valve plumber that tucks inside the sleeve the simultaneously cost of planting is higher, and operation sequence is comparatively numerous and diverse and have certain difficulty.
3) but the simple and easy fracture grouting technology of multitube does not possess repeat function, only can carry out secondary splitting grouting.Current anchor pole fracture grouting technology process and device can repeat can't finish high-quality fracture grouting to anchor pole when (secondary or repeatedly) and segmentation fracture grouting need in reply.
The utility model content
The purpose of this utility model is to provide a kind of and repeats, accurately split fix, can regulate pressure according to the soil layer needs and realize high pressure or super-pressure slip casting splitting system, at anchor pole under complex situations such as soft layer and rock stratum, native system possesses can repetition, segmentation, different pressures slip casting, and increase the anchoring body surrounding soil at the splitting of different soil situation accurate grouting, reach the purpose of effective raising anchor pole bearing capacity, reduction bolt deformation.
Its technical scheme of dealing with problems is: adopt the adjustable pressure grouting pump, have can repeat, repetition self adaptation filling system that Grouting Pipe that the segmentation transfer pressure is opened the slip casting valve and cleaning device are formed and job practices thereof finish accurate segmentation and repeat fracture grouting.
Its concrete technical scheme is:
Repetition self adaptation filling system of the present utility model, its system comprises anchor hole, anchor cable, the fracture grouting pipe, scavenging pump, adjustable pressure injection stock pump is formed an open circuit or closed-circuit system, described in the making of fracture grouting pipe employing flexibility or rigidity tube material, the length of fracture grouting pipe is determined according to designing requirement, the two ends of fracture grouting pipe are provided with grouting valve and wash-out valve, the fracture grouting pipe can adopt multistage to connect the middle U type pipe that is provided with, U type tube shape can be straight line or curve, the fracture grouting pipe turns back at U type pipe place and forms long U type, also can determine that the fracture grouting pipe turns back into the U type in the middle of can adopting one section blank pipe according to designing requirement, relevant position grouting port on the U type pipe of fracture grouting pipe and connection is provided with opened by pressure slip casting valve on the grouting port.
Repetition self adaptation filling system of the present utility model, the material that wherein said fracture grouting pipe is selected for use determine that according to the highest grouting pressure its external diameter, internal diameter and grouting port size determine that according to the anchor hole size its mathematic(al) representation is
The Grouting Pipe outer diameter D
1
D
1＝α·D
Wherein, D
1Be the Grouting Pipe external diameter
α=0.08～0.25 is according to design alternative
D is the anchor hole diameter
The Grouting Pipe inner diameter d
1
d
1＝β·D
1
Wherein, d
1Be the Grouting Pipe internal diameter
β=0.7～0.95 is according to design alternative
D
1Be the Grouting Pipe external diameter
Grouting port diameter D
2
D
2＝γ·d
1
Wherein, D
2Be the grouting port diameter
α=0.2～0.85 is according to design alternative
D is a Grouting Pipe
Repetition self adaptation filling system of the present utility model, wherein said opened by pressure slip casting valve, is fixed on the grouting port by the valve retainer plate by the elastic-plastic material one-shot forming, realizes slip casing by pressure by the class one way valve of opened by pressure flexible grout interruption-forming.
Repetition self adaptation filling system of the present utility model, wherein said opened by pressure slip casting valve, the one way valve that can form by the mechanism that rigid material is made, unidirectional Open valve is by hinge and valve pedestal, adopt brute spring that unidirectional Open valve is pressed on the slip casting mouth of pipe, valve mechanism is fixed on the Grouting Pipe by the valve retainer plate.
Repetition self adaptation filling system of the present utility model, wherein said opened by pressure slip casting valve, the class one way valve that can form by semi-rigid mechanism, unidirectional opening valve is made up of pedestal, elastic element, valve head and elastic force adjusting nut, elastic element is made by materials such as spring or elastic caoutchoucs, valve head can be sphere or cylindricality, regulates elasticity by the decrement of elastic force adjusting nut control elastic element, and pedestal is threaded with the Grouting Pipe employing or snap joint is connected.
Repetition self adaptation of the present utility model slip casting, can be at reinforcing cage, reinforcing bar and mini pile floral tube, be used for secondary splitting pile, one or more groups fracture grouting pipe is fixed on reinforcing cage, reinforcing bar and mini pile floral tube, be positioned over and set in the anchor hole (1) or stake hole that finishes, be used for secondary splitting pile, the pore-forming mode in described anchor hole or stake hole can adopt mechanical dry pore-forming and the wet pore-forming of pressure fluid cutting.
Repetition self adaptation of the present utility model slip casting, the opened by pressure preset pressure of described opened by pressure slip casting valve requires according to once grouting condensation of materials degree, secondary grouting material property, splitting relevant design and geological conditions is selected, press 1～8Mpa in general the employing, also can adopt super-pressure 8～45Mpa.
When using the novel repetition self adaptation filling system of this practicality, its job practices may further comprise the steps:
1) repeats self adaptation fracture grouting pipe according to design and installation, and Grouting Pipe and anchor pole are fixed;
2) pore-forming;
3) anchor cable is installed, and slip casting;
4) preparation secondary splitting mud jacking material, material comprises: cement grout etc.;
5) treat that the once grouting condensation of materials reaches certain degree of hardness, carry out secondary splitting grouting, be connected, finish once grouting splitting process by the slip casting valve of regulating grouting pressure unlatching desired location with one section valve opening of Grouting Pipe and with grouting pump;
6) open Grouting Pipe two ends valve, start scavenging pump simultaneously, Grouting Pipe is cleaned;
7) repeat 5) and 6) segmentation dividing potential drop secondary splitting grouting process finally finished;
8) fracture grouting finishes, tube sealing.
Repetition self adaptation filling system of the present utility model compared with prior art, the utlity model has following several advantages:
1. segmented fracture grouting:
Each layer geotechnical body character that anchoring body passes through is not quite similar, and native system accurately carries out the segmented fracture grouting according to each layer of pass through geotechnical body heterogeneity according to different grouting parameters, obtains best secondary or repeatedly splitting effect.And along a plurality of positions in the anchoring body length range fracture grouting grout outlet is being set, is realizing accurately location multisection type grouting method.
2. fracture grouting is pressed in classification
Native system uses different pressures slip casting, grouting pressure can carry out 2～45Mpa to be regulated, the different pressures fracture grouting is regulated according to the soil layer situation in each splitting position, effectively increase the reinforcing scope of grouting slurries, reach the purpose of reinforcing along the anchoring body total length to geotechnical body around the anchoring body.
3. can repeat fracture grouting:
Native system fracture grouting pipe racks has the class one-way valve designs, after slip casting Grouting Pipe is cleaned, and can utilize this slip casting valve slip casting once more, repeats repeatedly until reaching designing requirement.
Because the utility model repeats the self adaptation filling system, after finishing the slip casting of anchor pole pore-forming,, regulate the slip casting valve that grouting pressure is opened design attitude automatically by secondary splitting grouting infusion slurry, the anchor pole design attitude is carried out accurate grouting.Adopt this fracture grouting device and worker's method, realizing simultaneously can repetition, multisection type, different pressures slip casting function.Possess and make characteristics such as simple, easy and simple to handle, with low cost, the scope of application is extensive, is applicable to the polytype anchor pole that all have this type of to need substantially.
Below in conjunction with drawings and Examples in detail the utility model is described in detail.
Description of drawings
Fig. 1 is a repetition self adaptation slip casting construction method flow chart of the present utility model;
Fig. 2 is a repetition self adaptation slip casting structural representation of the present utility model;
Fig. 3 opens the grouting valve structure chart for pliable pressure;
Fig. 4 opens the grouting valve structure chart for rigid pressure;
Fig. 5 is that another kind of rigid pressure is opened the grouting valve structure chart.
The specific embodiment
A kind of repetition self adaptation filling system specific embodiment is as follows:
1. as Fig. 1,2, shown in 3, repetition self adaptation filling system of the present utility model, comprise and adopt the two common external diameter 22mm of 19m internal diameter 18mm galvanized pipes as the fracture grouting pipe, Grouting Pipe two ends running-on is handled, and every 2m grouting port is set since an end, the grouting port diameter is 8mm, the pliable pressure opening valve is set on the grouting port and fixes with pressure ring, pliable pressure Open valve maximum diameter of hole is 4mm, adopt identical 30mm Grouting Pipe to make the U type with bending machine, U type diameter is 60mm, and diameter 8mm grouting port is set bottom the U type, and the pliable pressure opening valve is installed, U type pipe is connected respectively with two sections Grouting Pipe, form a long U type pipe, and keep Grouting Pipe straight length spacing greater than 60mm, and in U pipe open segment two valves are installed respectively, be respectively applied for slip casing by pressure and clean Grouting Pipe, fix with anchor cable after Grouting Pipe completes, slip casting splitting system makes and finishes.
2. design attitude adopts jumbolter to set anchor hole in foundation ditch, and anchor hole length is 18.5m.
3. after pore-forming finishes, place the anchor cable that has completed, and carry out once grouting
4. configuration secondary splitting grouting material adopts water/binder ratio 0.5 preparation cement paste.
5. treat that the once grouting condensation of materials reaches certain degree of hardness, carry out secondary splitting grouting, at first Grouting Pipe two ends valve is connected with scavenging pump with the pressure regulation slush pump, close wash-out valve then and open the slip casting valve, open the pressure regulation grouting pump to stablize mud pressure slip casting, mud pressure is 2MPa, and mud pressure is opened the slip casting valve of desired location and finished once grouting splitting process, and grouting amount is 0.5 side.
6. close the pressure regulation grouting pump, open wash-out valve and slip casting valve, form the scavenger circuit, the startup scavenging pump is used the normal pressure clear water, cleans Grouting Pipe, and waste water is got rid of through the slip casting valve, stops after water becomes clearly.
7. place and carried out repetition slip casting in 0.5～1 hour, repeat 3 times and carry out 5) and 6) segmentation dividing potential drop secondary splitting grouting process finally finished.
8. repeatedly repeat to reach designing requirement behind the fracture grouting, to the final slip casting of Grouting Pipe, after slurries are full of Grouting Pipe, close slip casting valve and wash-out valve, fracture grouting is finished.
Because the utility model repeats the self adaptation filling system, after finishing the slip casting of anchor pole pore-forming,, regulate the slip casting valve that grouting pressure is opened design attitude automatically by secondary splitting grouting infusion slurry, the anchor pole design attitude is carried out accurate grouting.Adopt this fracture grouting device and worker's method, realizing simultaneously can repetition, multisection type, different pressures slip casting function.Possess and make characteristics such as simple, easy and simple to handle, with low cost, the scope of application is extensive, is applicable to the polytype anchor pole that all have this type of to need substantially.
Embodiment recited above is described preferred implementation of the present utility model; be not that design of the present utility model and scope are limited; do not breaking away under the utility model design concept prerequisite; various modification and improvement that engineers and technicians in this area make the technical solution of the utility model; all should fall in the protection domain of the present utility model; the technology contents that the utility model is asked for protection all has been documented in claim.
Claims (5)
1. repeat the self adaptation filling system, it is characterized in that: filling system comprises anchor hole (1), anchor cable (2), fracture grouting pipe (3), scavenging pump (4), adjustable pressure injection stock pump (5) is formed an open circuit or closed-circuit system, it is characterized in that described fracture grouting pipe (3) adopts the flexibility or rigidity tube material to make, the two ends of fracture grouting pipe (3) are provided with slip casting valve (6) and wash-out valve (7), fracture grouting pipe (3) adopts multistage to connect, the centre is provided with U type pipe (8), U type pipe (8) shape is straight line or curve, fracture grouting pipe (3) is located to turn back at U type pipe (8) and is formed long U type, perhaps fracture grouting pipe (3) turns back into the U type in the middle of adopting one section blank pipe, fracture grouting pipe (3) and the U type pipe (8) that connects are gone up corresponding positions and are installed grouting port (10), and opened by pressure slip casting valve (11) is set on the grouting port (10).
2. require 1 repetition self adaptation filling system as patent, it is characterized in that: the mathematic(al) representation of external diameter, internal diameter and grouting port (10) size of described fracture grouting pipe (3) is:
The Grouting Pipe outer diameter D
1
D
1＝α·D
Wherein, D
1Be the Grouting Pipe external diameter
α=0.08～0.25 is according to design alternative
D is the anchor hole diameter
The Grouting Pipe inner diameter d
1
d
1＝β·D
1
Wherein, d
1Be the Grouting Pipe internal diameter
β=0.7～0.95 is according to design alternative
D
1Be the Grouting Pipe external diameter
Grouting port diameter D
2
D
2＝γ·d
1
Wherein, D
2Be the grouting port diameter
α=0.2～0.85 is according to design alternative
D is a Grouting Pipe
3. repetition self adaptation filling system as claimed in claim 1, it is characterized in that: opened by pressure slip casting valve (11) forms flexible grout mouth (13) by the elastic-plastic material one-shot forming, and opened by pressure slip casting valve (11) is fixed on the grouting port (10) by valve retainer plate (12).
4. repetition self adaptation filling system as claimed in claim 1, it is characterized in that: opened by pressure slip casting valve (11) comprises unidirectional Open valve (14), unidirectional Open valve (14) links to each other with valve pedestal (16) by hinge (15), brute spring (17) is pressed in unidirectional Open valve (14) on the slip casting mouth of pipe (6), by valve retainer plate (12) valve mechanism is fixed on the Grouting Pipe.
5. repetition self adaptation filling system as claimed in claim 1, it is characterized in that: opened by pressure slip casting valve (11) is made up of pedestal (19), elastic element (19), valve head (20) and elastic force adjusting nut (21), elastic element (19) is made by spring or elastic rubber material, valve head (20) is sphere or cylindricality, the decrement of elastic force adjusting nut (21) control elastic element (19), grouting port (22) is set on the pedestal (19), and pedestal (19) is threaded with fracture grouting pipe (3) employing or snap joint is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202124129U CN201801861U (en) | 2010-06-02 | 2010-06-02 | Repeated self-adaptive grouting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202124129U CN201801861U (en) | 2010-06-02 | 2010-06-02 | Repeated self-adaptive grouting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201801861U true CN201801861U (en) | 2011-04-20 |
Family
ID=43871368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202124129U Expired - Fee Related CN201801861U (en) | 2010-06-02 | 2010-06-02 | Repeated self-adaptive grouting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201801861U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103228968A (en) * | 2010-11-22 | 2013-07-31 | 伊莱斯杰特尼卡公司 | A non-return valve for a tubular consolidation element |
| CN103410158A (en) * | 2013-08-28 | 2013-11-27 | 上海岩土工程勘察设计研究院有限公司 | Recoverable vertical type portal self-stabilizing enveloping structure and application method thereof |
| CN103573274A (en) * | 2013-11-11 | 2014-02-12 | 浙江大学 | Steel sleeve grouting reinforcement device for settlement control over shield tunnel of soft foundation |
| CN105178995A (en) * | 2015-10-19 | 2015-12-23 | 河南理工大学 | Lateral hollow repeatable grouting anchor bar |
| CN107460874A (en) * | 2017-09-15 | 2017-12-12 | 新乡市嘉汇科技有限公司 | A kind of slip casting anchors utricule |
| CN110106884A (en) * | 2019-03-26 | 2019-08-09 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of grouting construction method |
| CN110513132A (en) * | 2019-09-19 | 2019-11-29 | 新汶矿业集团有限责任公司孙村煤矿 | A kind of pressure sensitive grouting cable anchor and substep grouting construction method |
| CN113585071A (en) * | 2021-07-27 | 2021-11-02 | 内蒙古东蒙工贸有限责任公司 | Anchor cable with anti-seismic pressure dispersion mechanism |
| CN114135101A (en) * | 2021-12-13 | 2022-03-04 | 中国建筑第二工程局有限公司 | Construction joint self-closing grouting pipe structure and using method thereof |
-
2010
- 2010-06-02 CN CN2010202124129U patent/CN201801861U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103228968A (en) * | 2010-11-22 | 2013-07-31 | 伊莱斯杰特尼卡公司 | A non-return valve for a tubular consolidation element |
| US9777852B2 (en) | 2010-11-22 | 2017-10-03 | Elas Geotecnica S.R.L. | Non-return valve for a tubular consolidation element |
| CN103410158A (en) * | 2013-08-28 | 2013-11-27 | 上海岩土工程勘察设计研究院有限公司 | Recoverable vertical type portal self-stabilizing enveloping structure and application method thereof |
| CN103573274A (en) * | 2013-11-11 | 2014-02-12 | 浙江大学 | Steel sleeve grouting reinforcement device for settlement control over shield tunnel of soft foundation |
| CN103573274B (en) * | 2013-11-11 | 2016-01-20 | 浙江大学 | Soft foundation shield tunnel subsidence controls steel sleeve grouting and reinforcing device |
| CN105178995A (en) * | 2015-10-19 | 2015-12-23 | 河南理工大学 | Lateral hollow repeatable grouting anchor bar |
| CN107460874A (en) * | 2017-09-15 | 2017-12-12 | 新乡市嘉汇科技有限公司 | A kind of slip casting anchors utricule |
| CN110106884A (en) * | 2019-03-26 | 2019-08-09 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of grouting construction method |
| CN110513132A (en) * | 2019-09-19 | 2019-11-29 | 新汶矿业集团有限责任公司孙村煤矿 | A kind of pressure sensitive grouting cable anchor and substep grouting construction method |
| CN113585071A (en) * | 2021-07-27 | 2021-11-02 | 内蒙古东蒙工贸有限责任公司 | Anchor cable with anti-seismic pressure dispersion mechanism |
| CN114135101A (en) * | 2021-12-13 | 2022-03-04 | 中国建筑第二工程局有限公司 | Construction joint self-closing grouting pipe structure and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20140602 |