CN106149725B - A kind of wet grouting mending device and its grouting mending method for seeping concrete - Google Patents

A kind of wet grouting mending device and its grouting mending method for seeping concrete Download PDF

Info

Publication number
CN106149725B
CN106149725B CN201610691972.9A CN201610691972A CN106149725B CN 106149725 B CN106149725 B CN 106149725B CN 201610691972 A CN201610691972 A CN 201610691972A CN 106149725 B CN106149725 B CN 106149725B
Authority
CN
China
Prior art keywords
grouting
tube core
filling device
chemical
liquid bag
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201610691972.9A
Other languages
Chinese (zh)
Other versions
CN106149725A (en
Inventor
丁仕辉
姚楚康
谢祥明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Ysd Surveying & Designing Co Ltd
Guangdong No 2 Hydropower Engineering Co Ltd
Original Assignee
Guangdong Ysd Surveying & Designing Co Ltd
Guangdong No 2 Hydropower Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Ysd Surveying & Designing Co Ltd, Guangdong No 2 Hydropower Engineering Co Ltd filed Critical Guangdong Ysd Surveying & Designing Co Ltd
Priority to CN201610691972.9A priority Critical patent/CN106149725B/en
Publication of CN106149725A publication Critical patent/CN106149725A/en
Application granted granted Critical
Publication of CN106149725B publication Critical patent/CN106149725B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D15/00Handling building or like materials for hydraulic engineering or foundations
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B1/00Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains

Abstract

The invention discloses a kind of wet grouting mending devices and its grouting mending method for seeping concrete, including filling device stack shell, be in the milk tube core, stack shell flange, filling device sealing cover, connect bolt, seal gasket, it presses medium inlet valve and gives pressure media outlet valve, the chemical grouting liquid bag for containing chemical grouting liquid is disposed with inside filling device stack shell, pressure space is formed between chemical grouting liquid bag outer wall and filling device stack shell, one end of grouting tube core is extend into inside chemical grouting liquid bag after the preformed hole of filling device sealing cover, grout pipe of the other end of grouting tube core for grouting point of plugging into, prepared chemical grouting liquid is fitted into chemical grouting liquid bag, and chemical grouting liquid bag is enclosed in a closed container, the chemical grouting liquid in chemical grouting liquid bag is exported outward by a grouting tube core simultaneously, by defeated into closed container Enter constant pressure gives pressure medium, acts on it on packed chemical grouting liquid, realizes lasting, constant pressure grouting.

Description

A kind of wet grouting mending device and its grouting mending method for seeping concrete
Technical field
The present invention relates to a kind of grouting mending device of concrete defect, especially a kind of wet grouting mending for seeping concrete Device further includes a kind of grouting mending method based on the wet grouting mending device for seeping concrete.
Background technique
In the construction of concrete for hydraulic structure, sometimes because of aggregate separated, owed to shake, leakage, spillage or because stone is maked somebody a mere figurehead in reinforcing bar On skeleton, concrete leakiness, even internal formation honeycomb or cavity are easily led to.The presence of this defect often make structure or Then there is leakage phenomenon in the total bearing capacity degradation of component, the building paddled.Such as pond, aqueduct thin wall concrete knot Structure, self waterproofing ability weakens significantly when there is uncompacted concrete, and it is inevitable that leakage occurs in concrete.
The previous impervious leakage-stopping for seeping concrete that dissipates for leakiness carries out chemical grouting and repairs frequently with handlance, mechanical pump It mends, but effect is mostly not satisfactory.Analyzing its reason is mainly that chemical grout pours into the lazy weight for dissipating and seeping in concrete, is risen not To ideal seepage preventing effect.And chemical grout groundwater increment is insufficient main reasons is that pulsed is in the milk and is held to scattered infiltration concrete Caused by continuous grouting time is insufficient.When due to being in the milk using handlance or mechanical pump, construction personnel need long-time operation handlance or Mechanical pump is guarded, and smaller due to dissipating plasma volume of the infiltration concrete within the unit time, the scattered concrete that seeps is easily caused not eat slurry Illusion, and grouting is terminated ahead of time.
It is analyzed according to the internal structure of leakiness concrete, there are various to be connected for uncompacted inside concrete Stomata, when the stomata that only these are connected sufficiently uses chemical grout to fill, just can guarantee to leakiness concrete Qualification repairing.Due to having gas in the various stomata being connected of leakiness inside concrete, when being in the milk to it, There is air-resistance phenomenon, filling rate can not be too urgent, preferably uses the grouting way of continuous and constant pressure, and grouting effect could be ideal.
Summary of the invention
The purpose of the present invention is to provide a kind of wet grouting mending device and its grouting mending method for seeping concrete, incite somebody to action Packed chemistry grouting liquid is enclosed in a closed container, and packed chemistry grouting liquid is exported outward by a grouting tube core;Pass through Stable pressure water etc. is inputted into closed container and gives pressure medium, is acted on it on packed chemical grouting liquid, is realized lasting, permanent The grouting of pressure.This method equipment is simple and convenient to operate, and filling process is not necessarily to human attendance, can save a large amount of labour costs.
The solution that the present invention solves its technical problem is: a kind of wet grouting mending device for seeping concrete, including upper It holds open filling device stack shell, the tube core that is in the milk, the stack shell flange being arranged on the outside of the open end of filling device stack shell and will be in the milk The filling device sealing cover of the open end sealing of device stack shell, the filling device sealing cover are fixed on stack shell flange by connecting bolt On, it is disposed with seal gasket between the filling device sealing cover and stack shell flange, is disposed on the side wall of the filling device stack shell To pressure medium inlet valve and pressure media outlet valve is given, the chemistry for containing chemical grouting liquid is disposed with inside filling device stack shell and is filled Slurries bag is formed between the chemical grouting liquid bag outer wall and filling device stack shell for filling to the pressure space of pressure medium, institute State grouting tube core one end pass through filling device sealing cover preformed hole after extend into inside chemical grouting liquid bag, the tube core that is in the milk it is another Grout pipe of the one end for grouting point of plugging into.
As a further improvement of the above technical scheme, it is fixed on the filling device sealing cover lateral surface in sealing caping Tooth cap, it is described to seal the tooth cap thread hole that two end faces above and below sealing caping interior tooth cap are disposed in caping interior tooth cap, institute The axis for stating tooth cap thread hole is overlapped with the axis of preformed hole, and the internal diameter in tooth cap thread hole is greater than the internal diameter of preformed hole, tooth cap spiral shell Pit is screwed with inside and outside tooth sealing-plug, and the inside and outside tooth sealing-plug, which is disposed with, runs through two end faces of sealing caping interior tooth cap or more One end of internal thread hole, the grouting tube core passes through internal thread hole and is screwed in inside and outside tooth by the screw thread of grout pipe core outer surface It is extend into after on sealing-plug inside chemical grouting liquid bag.
As a further improvement of the above technical scheme, the threaded portion of the grout pipe core outer surface or all covering Grout pipe core outer surface.
As a further improvement of the above technical scheme, the lower end surface of the inside and outside tooth sealing-plug by grouting tube core and is reserved Gap between hole blocks.
A kind of grouting mending method based on the wet grouting mending device for seeping concrete, includes the following steps,
1) prepared chemical grouting liquid is fitted into chemical grouting liquid bag, and is inserted into one in chemical grouting liquid bag Section has the grouting tube core of outer tooth, while by the binding of the sack of chemical grouting liquid bag and grouting tube core, forming grouting packet;
2) the grouting packet that will be made is placed in filling device stack shell, is subsequently mounted seal gasket, covers filling device sealing Lid, and by filling device sealing cover and stack shell flange using connection bolt fastening, grouting tube core passes through pre- on filling device sealing cover Box out stretching after it is exposed outside;
3) by inside and outside tooth sealing-plug screw-in sealing caping interior tooth cap, the lower end surface of inside and outside tooth sealing-plug is by grouting tube core and in advance Gap between boxing out blocks, and fixed grouting tube core;
4) close medium inlet valve to pressure and to pressure media outlet valve, it is exposed grouting tube core plug into grouting point filling Slurry pipe, and pressure medium tube is given installing to pressure medium inlet valve;
5) it opens and gives pressure medium inlet valve, by being continuingly acted on chemical grouting liquid bag to pressure medium, implement lasting, permanent The grouting of pressure.
As a further improvement of the above technical scheme, in step 1), the grouting tube core insertion chemistry grouting liquid bag Length be in the milk tube core length 2/5ths.
As a further improvement of the above technical scheme, in steps of 5, described to give pressure medium for water.
The beneficial effects of the present invention are: the present invention is by the way that prepared chemical grouting liquid to be fitted into chemical grouting liquid bag, And chemical grouting liquid bag is enclosed in a closed container, while the chemical grouting liquid in chemical grouting liquid bag is in the milk by one Tube core exports outward, plug into grouting point grout pipe, by into closed container input constant pressure to pressure medium, make its work With on packed chemical grouting liquid, lasting, constant pressure grouting is realized.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described.Obviously, described attached drawing is a part of the embodiments of the present invention, rather than is all implemented Example, those skilled in the art without creative efforts, can also be obtained according to these attached drawings other designs Scheme and attached drawing.
Fig. 1 is structural schematic diagram of the invention;
Fig. 2 is the structural schematic diagram of filling device stack shell in the present invention;
Fig. 3 is the structural schematic diagram of filling device sealing cover in the present invention.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to design of the invention, specific structure and generation clear Chu is fully described by, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this hair Bright a part of the embodiment, rather than whole embodiments, based on the embodiment of the present invention, those skilled in the art are not being paid Other embodiments obtained, belong to the scope of protection of the invention under the premise of creative work.In addition, be previously mentioned in text All connection/connection relationships not singly refer to that component directly connects, and referring to can be added deduct according to specific implementation situation by adding Few couple auxiliary, to form more preferably coupling structure.
As shown in FIG. 1 to 3, a kind of wet grouting mending device for seeping concrete, the filling device stack shell including upper end opening 6, be in the milk tube core 1, the stack shell flange 5 that is arranged on the outside of the open end of filling device stack shell 6 and by the open end of filling device stack shell 6 The filling device sealing cover 4 of sealing, the filling device sealing cover 4 are fixed on stack shell flange 5 by connecting bolt 9, the grouting It is disposed with seal gasket between device sealing cover 4 and stack shell flange 5, is disposed on the side wall of the filling device stack shell 6 and gives pressure medium Inlet valve 7 and pressure media outlet valve 8 is given, the chemical grouting liquid for containing chemical grouting liquid is disposed with inside filling device stack shell 6 Bag 10 is formed between 10 outer wall of chemical grouting liquid bag and filling device stack shell 6 for filling to the pressure space of pressure medium, institute The one end for stating grouting tube core 1 is extend into inside chemical grouting liquid bag 10 after the preformed hole 40 of filling device sealing cover 4, grout pipe Grout pipe of the other end of core 1 for grouting point of plugging into.
By the way that prepared chemical grouting liquid to be fitted into chemical grouting liquid bag 10, and chemical grouting liquid bag 10 is enclosed in In one closed container, while the chemical grouting liquid in chemical grouting liquid bag 10 is exported outward by a grouting tube core 1, filling of plugging into The grout pipe for starching point gives pressure medium by input constant pressure into closed container, it is made to act on packed chemical grouting liquid On, realize lasting, constant pressure grouting.
It is further used as preferred embodiment, sealing caping interior tooth is fixed on 4 lateral surface of filling device sealing cover Cap 3, it is described to seal the tooth cap thread hole 30 being disposed in caping interior tooth cap 3 through sealing about 3 two end faces of caping interior tooth cap, The axis in tooth cap thread hole 30 is overlapped with the axis of preformed hole 40, and the internal diameter in tooth cap thread hole 30 is greater than the interior of preformed hole 40 Diameter, tooth cap thread hole 30 are screwed with inside and outside tooth sealing-plug 2, and the inside and outside tooth sealing-plug 2 is disposed with through sealing caping interior tooth cap 3 The internal thread hole of upper and lower two end faces, one end of the grouting tube core 1 pass through internal thread hole and by grouting 1 outer surfaces of tube core Screw thread is extend into inside chemical grouting liquid bag 10 after being screwed on inside and outside tooth sealing-plug 2, passes through the external screw thread of inside and outside tooth sealing-plug 2 It is fixed in sealing caping interior tooth cap 3, and will by the internal screw thread of inside and outside tooth sealing-plug 2 and the screw thread of grouting 1 outer surface of tube core Grouting tube core 1 is fixed up, and prevents the grouting tube core 1 compression movement when pouring into filling device stack shell 6 to pressure medium.
It is further used as preferred embodiment, the threaded portion of grouting 1 outer surface of tube core or all covering fill Starch 1 outer surface of tube core.Screw thread has can be set in one end that chemical grouting liquid bag 10 is protruded into grouting tube core 1, by chemical grouting liquid After the binding of the sack and grouting tube core 1 of bag 10, multiple tracks is formed by the screw thread and chemical grouting liquid bag 10 of the tube core 1 that is in the milk and is stung Close structure.When pouring into filling device stack shell 6 to pressure medium, grouting tube core 1 chemically grouting liquid bag 10 on the one hand can be prevented In detach, the chemical grouting liquid chemically sack of grouting liquid bag 10 and the grouting being also possible to prevent in chemical grouting liquid bag 10 It is overflowed at the binding of tube core 1.
It is further used as preferred embodiment, the lower end surface of the inside and outside tooth sealing-plug 2 will grouting tube core 1 and preformed hole Gap between 40 blocks.The top of inside and outside tooth sealing-plug 2 is provided with a boss, the boss and sealing caping interior tooth cap 3 After sealing tooth cap thread hole 30 after contact, the lower end surface of inside and outside tooth sealing-plug 2 and boss form double sealing structure.
A kind of grouting mending method based on the wet grouting mending device for seeping concrete, includes the following steps,
1) prepared chemical grouting liquid is fitted into chemical grouting liquid bag 10, and is inserted into one in chemical grouting liquid bag 10 Root middle section has the grouting tube core 1 of outer tooth, while by the binding of the sack of chemical grouting liquid bag 10 and grouting tube core 1, being formed and being filled Slurry packet;
2) the grouting packet that will be made is placed in filling device stack shell 6, is subsequently mounted seal gasket, covers filling device sealing Lid 4, and filling device sealing cover 4 is fastened with stack shell flange 5 using bolt 9 is connect, grouting tube core 1 passes through filling device sealing cover 4 On preformed hole 40 stretch out after it is exposed outside;
3) inside and outside tooth sealing-plug 2 is screwed in into sealing caping interior tooth cap 3, the lower end surface of inside and outside tooth sealing-plug 2 will grouting tube core 1 Gap between preformed hole 40 blocks, and fixed grouting tube core 1;
4) it closes to pressure medium inlet valve 7 and gives pressure media outlet valve 8, exposed grouting tube core 1, which is plugged into, to be in the milk a little Grout pipe, and to pressure medium inlet valve 7 installation to pressure medium tube;
5) it opens and gives pressure medium inlet valve 7, by continuingly acting on chemical grouting liquid bag 10 to pressure medium, implement to hold Continuous, constant pressure grouting.
It is further used as preferred embodiment, in step 1), the grouting 1 insertion chemistry grouting liquid bag 10 of tube core Length is 2/5ths of grouting 1 length of tube core, convenient for chemical grouting liquid in chemical grouting liquid bag 10 to be all discharged.
It is further used as preferred embodiment, it is in steps of 5, described to give pressure medium for water.
It is to be illustrated to better embodiment of the invention, but the invention is not limited to the reality above Example is applied, those skilled in the art can also make various equivalent modifications on the premise of without prejudice to spirit of the invention or replace It changes, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.

Claims (6)

1. a kind of wet grouting mending device for seeping concrete, it is characterised in that: filling device stack shell, grout pipe including upper end opening Core, the stack shell flange being arranged on the outside of the open end of filling device stack shell and the filling device for sealing the open end of filling device stack shell Sealing cover, the filling device sealing cover are fixed on stack shell flange by connecting bolt, the filling device sealing cover and stack shell method It is disposed with seal gasket between orchid, be disposed on the side wall of the filling device stack shell to pressure medium inlet valve and gives pressure media outlet Valve is disposed with the chemical grouting liquid bag for containing chemical grouting liquid, the chemical grouting liquid bag outer wall inside filling device stack shell It is formed between filling device stack shell for filling to the pressure space of pressure medium, it is close that one end of the grouting tube core passes through filling device It is extend into after the preformed hole of capping inside chemical grouting liquid bag, grout pipe of the other end for the tube core that is in the milk for grouting point of plugging into, One end of chemical grouting liquid bag is protruded into grouting tube core and is provided with screw thread, by tying up for the sack of chemical grouting liquid bag and the tube core that is in the milk It is permanent by being inputted into closed container by the screw thread and chemical grouting liquid bag formation multiple tracks occlusion structure of the tube core that is in the milk after bundle Constant-pressure gives pressure medium, acts on it on packed chemical grouting liquid, realizes lasting, constant pressure grouting, described to give pressure medium For water.
2. the wet grouting mending device for seeping concrete according to claim 1, it is characterised in that: the filling device sealing cover It is fixed with sealing caping interior tooth cap on lateral surface, is disposed in the sealing caping interior tooth cap above and below sealing caping interior tooth cap The tooth cap thread hole of two end faces, the axis in tooth cap thread hole are overlapped with the axis of preformed hole, the internal diameter in tooth cap thread hole Greater than the internal diameter of preformed hole, tooth cap thread hole is screwed with inside and outside tooth sealing-plug, and the inside and outside tooth sealing-plug is disposed with through sealing The internal thread hole of two end faces above and below caping interior tooth cap, one end of the grouting tube core pass through internal thread hole and by grouting tube cores The screw thread of outer surface is extend into inside chemical grouting liquid bag after being screwed on inside and outside tooth sealing-plug.
3. the wet grouting mending device for seeping concrete according to claim 2, it is characterised in that: the grouting tube core appearance The threaded portion in face or whole blanket grouting tube cores outer surface.
4. the wet grouting mending device for seeping concrete according to claim 2 or 3, it is characterised in that: the inside and outside tooth is close The lower end surface of blocking blocks the gap between grouting tube core and preformed hole.
5. a kind of grouting mending method based on the wet grouting mending device for seeping concrete described in claim 4, it is characterised in that: Include the following steps,
1) prepared chemical grouting liquid is fitted into chemical grouting liquid bag, and is inserted into a middle section band in chemical grouting liquid bag There is the grouting tube core of outer tooth, while by the binding of the sack of chemical grouting liquid bag and grouting tube core, forming grouting packet;
2) the grouting packet that will be made is placed in filling device stack shell, is subsequently mounted seal gasket, covers filling device sealing cover, and By filling device sealing cover and stack shell flange using connection bolt fastening, grouting tube core is stretched by the preformed hole on filling device sealing cover Out after it is exposed outside;
3) inside and outside tooth sealing-plug is screwed in into sealing caping interior tooth cap, the lower end surface of inside and outside tooth sealing-plug will grouting tube core and preformed hole Between gap block, and fixed grouting tube core;
4) close medium inlet valve to pressure and to pressure media outlet valve, it is exposed grouting tube core plug into grouting point grouting Pipe, and pressure medium tube is given installing to pressure medium inlet valve;
5) it opens and gives pressure medium inlet valve, by being continuingly acted on chemical grouting liquid bag to pressure medium, implement lasting, constant pressure Grouting.
6. the wet grouting mending method for seeping concrete according to claim 5, it is characterised in that: described in step 1) The length of grouting tube core insertion chemistry grouting liquid bag is 2/5ths of grouting tube core length.
CN201610691972.9A 2016-08-18 2016-08-18 A kind of wet grouting mending device and its grouting mending method for seeping concrete Active CN106149725B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610691972.9A CN106149725B (en) 2016-08-18 2016-08-18 A kind of wet grouting mending device and its grouting mending method for seeping concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610691972.9A CN106149725B (en) 2016-08-18 2016-08-18 A kind of wet grouting mending device and its grouting mending method for seeping concrete

Publications (2)

Publication Number Publication Date
CN106149725A CN106149725A (en) 2016-11-23
CN106149725B true CN106149725B (en) 2019-02-12

Family

ID=57330700

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610691972.9A Active CN106149725B (en) 2016-08-18 2016-08-18 A kind of wet grouting mending device and its grouting mending method for seeping concrete

Country Status (1)

Country Link
CN (1) CN106149725B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108627424A (en) * 2018-08-02 2018-10-09 华北理工大学 Portable prefabricated wall connection chamber Grouted density monitoring and compensation device and method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2125025U (en) * 1992-05-01 1992-12-16 欧阳中提 Inflater with high pressure leather hose
DE19507211A1 (en) * 1995-03-02 1996-09-05 Dietrich Dr Hoffmann Method of emptying or filling container with free-flowing material
JP2002061394A (en) * 2000-08-21 2002-02-28 Nippon Grease Nipple Kk Automatic fastening type plug for fluid injection
CN1341799A (en) * 2000-09-07 2002-03-27 休邦得建设股份有限公司 Gasket component for adhesive injection equipment and said equipment and adhesive injection method
CN2813777Y (en) * 2005-05-25 2006-09-06 广东水电二局股份有限公司 Liquid bag slip casting machine
CN104264677B (en) * 2014-10-15 2016-01-20 山东大学 A kind of Novel constant-pressure grouting device and method of operating
CN206052716U (en) * 2016-08-18 2017-03-29 广东水电二局股份有限公司 A kind of wet grouting mending device for oozing concrete

Also Published As

Publication number Publication date
CN106149725A (en) 2016-11-23

Similar Documents

Publication Publication Date Title
CN207739264U (en) A kind of Grouting Pipe
CN105527384A (en) Grouting simulating test device and test method thereof
CN207268681U (en) Pouring pile hole bottom slurry sampler
CN106499360A (en) Underground coal mine hydraulic fracturing drilling and sealing device
CN205857190U (en) A kind of steel-pipe pile segmenting slip casting structure
CN103174092A (en) Inhaul cable structure capable of being filled with dry air and realizing method thereof
CN106149725B (en) A kind of wet grouting mending device and its grouting mending method for seeping concrete
CN206601078U (en) Blasting hole with water explosive loader
CN203891015U (en) Oblique anchor simple hole-sealing grouting bag device
CN206052716U (en) A kind of wet grouting mending device for oozing concrete
CN206655476U (en) A kind of new built-in groove
CN206174965U (en) Double entry slip casting pipe slip casting device
CN206091080U (en) Closed automatic ground tackle
CN207419503U (en) Subterranean excavation leak stopping structure
CN207485402U (en) A kind of fluid filling hole sealing device
CN206928341U (en) A kind of device of the outer side hydraulic pressure of reduction basement
CN104265237B (en) A kind of method for sealing in gas pumping hole
CN206143936U (en) Basement outer wall post -cast strip shutoff waterproof construction
CN205400670U (en) Grouting tube
CN107893484A (en) A kind of disposable plugging device of water penetration
CN209609189U (en) Fertile device is poured in a kind of punching of cherry tree planting
CN107816041A (en) Non-dumping pore-forming prestressed anchor rod, anchor hole leakage-proof structure and construction method thereof
CN209162834U (en) A kind of sealing floral tube grouting equipment
CN208953197U (en) Soil under vacuum preloading vacuum degree monitoring device
CN103526767B (en) A kind of method of plugging dewatering well device and shutoff dewatering well

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant