CN110924954A - Device and method for checking grouting condition of annular space of orifice pipe - Google Patents
Device and method for checking grouting condition of annular space of orifice pipe Download PDFInfo
- Publication number
- CN110924954A CN110924954A CN201911265914.XA CN201911265914A CN110924954A CN 110924954 A CN110924954 A CN 110924954A CN 201911265914 A CN201911265914 A CN 201911265914A CN 110924954 A CN110924954 A CN 110924954A
- Authority
- CN
- China
- Prior art keywords
- grouting
- annular space
- leakage
- pipe
- bypass valve
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title abstract description 15
- 238000010276 construction Methods 0.000 claims abstract description 31
- 230000008014 freezing Effects 0.000 claims abstract description 22
- 238000007710 freezing Methods 0.000 claims abstract description 22
- 238000005520 cutting process Methods 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000002787 reinforcement Effects 0.000 claims abstract description 5
- 239000002002 slurry Substances 0.000 claims abstract description 5
- 238000002347 injection Methods 0.000 claims abstract description 3
- 239000007924 injection Substances 0.000 claims abstract description 3
- 238000007689 inspection Methods 0.000 claims description 4
- 238000007569 slipcasting Methods 0.000 claims 2
- 238000004891 communication Methods 0.000 abstract description 3
- 239000011440 grout Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/001—Improving soil or rock, e.g. by freezing; Injections
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Architecture (AREA)
- Soil Sciences (AREA)
- Civil Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention relates to a device and a method for checking grouting condition of an annular space of an orifice pipe, wherein the annular space is formed between the orifice pipe and a freezing pipe of the device, and a bypass valve is additionally arranged on the orifice pipe to observe leakage condition, so that whether grouting is full in the annular space or not and whether crack or not exists after a grouting body is placed for a long time can be judged; the annular space is communicated with the grouting pipeline and grouting equipment through the bypass valve, and the holes in the annular space are reinforced and filled through grouting of the bypass valve, so that the leakage risk of construction cutting of the freezing pipe can be greatly avoided. The method comprises the following steps: 1) installing a bypass valve; 2) a hole is formed in the bypass valve; 3) observing the leakage condition of the inner hole of the valve; 4) connecting grouting equipment pipelines, performing a water injection test without leakage, and performing grouting reinforcement with leakage; 5) opening the hole after the slurry is solidified and then checking; 6) after confirming that no leakage exists, the construction of cutting the freezing pipe can be carried out. The invention can effectively reduce the risk of water leakage during cutting construction of the frozen pipe of the communication channel and improve the safety of pipe cutting construction.
Description
Technical Field
The invention relates to a shield tunnel connection channel construction device, in particular to a device and a method for checking grouting condition of an orifice pipe annular space.
Background
Along with the continuous expansion of city scale, especially central big city, the demand of subway construction is more and more, and the contact passageway of subway tunnel lays also more and more. The connection channel is used as a key risk point in subway tunnel construction, and half-point flash loss cannot occur in details of each construction procedure. The normal operation of the subway tunnel is related to the development process of the whole city.
The cutting of the freezing pipe is an important process for the freezing method construction of the communication channel. However, many construction sites lack safe, effective and targeted protection for the inspection process before pipe cutting, thereby causing immeasurable consequences and loss. Therefore, a safety inspection measure method before freezing pipe cutting is provided aiming at the possible risk during freezing pipe cutting construction, which is urgently needed for reducing the construction risk, eliminating the construction hidden danger and improving the construction quality of the subway tunnel engineering.
Disclosure of Invention
In order to solve the problem of risk hidden danger before freezing pipe cutting, the invention provides a device and a method for checking the grouting condition of an annular space of an orifice pipe.
In order to achieve the purpose, the technical scheme of the invention is as follows: a device for checking grouting conditions of an annular space of an orifice pipe comprises a bypass valve, a grouting pipeline and grouting equipment, wherein an annular space is formed between the orifice pipe and a freezing pipe, the orifice pipe is additionally provided with the bypass valve and communicated with the annular space for observing leakage conditions, and whether grouting in the annular space is full or not and whether crack or not exists after the grouting body is placed for a long time can be judged; the annular space is communicated with the grouting pipeline and grouting equipment through the bypass valve, and the holes in the annular space are reinforced and filled through grouting of the bypass valve, so that the leakage risk of construction cutting of the freezing pipe can be greatly avoided.
Furthermore, 1-2 bypass valves are additionally arranged on the orifice pipe and are arranged at an angle of 90 degrees with the original bypass valves.
A construction method adopting a device for checking grouting conditions of an annular space of an orifice pipe comprises the following specific construction steps: 1) installing a bypass valve; 2) a hole is formed in the bypass valve; 3) observing the leakage condition of the inner hole of the valve; 4) connecting grouting equipment pipelines, performing a water injection test without leakage, and performing grouting reinforcement with leakage; 5) opening the hole after the slurry is solidified and then checking; 6) after confirming that no leakage exists, the construction of cutting the freezing pipe can be carried out.
The invention has the beneficial effects that:
the construction technology can ensure construction safety during cutting construction of the freezing pipe, reduce the risk of water burst and sand burst of the tunnel during pipe cutting construction, avoid damage, settlement and deformation of the tunnel structure caused by sudden leakage, and further reduce fatal risk factors such as soil body loss, surface settlement, pipeline structure cracking and the like caused by leakage of the communication channel.
Drawings
FIG. 1 is a schematic view of an annular space bypass valve installation of the present invention;
FIG. 2 is a cross-sectional view of an annulus bypass valve slurry fill of the present invention;
FIG. 3 is an annular space grouting diagram;
FIG. 4 is a view of annular space void inspection and filling;
fig. 5 is a left side view of fig. 4.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in fig. 1 to 5, an apparatus for inspecting grouting condition of an annular space of an orifice pipe for inspecting the condition of grouting filling of the annular space and a joint for connecting grouting pipes as a supplementary grouting. The device comprises a bypass valve 3, an electric welding machine, a grouting joint, a grouting pipeline, grouting equipment, slurry mixing equipment, cement and water glass. An annular space is arranged between the orifice pipe 1 and the freezing pipe 2, the annular space is communicated with a grouting pipeline and grouting equipment through a plurality of bypass valves 3,
(1) the leakage condition is observed by adding the bypass valve 3 on the orifice pipe 1, so that whether grouting in the annular space is full or not and whether crack or not exists after the grouting body is placed for a long time can be judged.
(2) Through reinforcing the grouting 4 of the bypass valve 3, the holes in the annular space are filled, and the leakage risk of cutting off construction of the freezing pipe is greatly avoided.
The concrete construction steps of the invention are as follows:
because of the freezing method reinforcement construction condition, the freezing pipe 2 and the orifice pipe 1 are placed for a long time, the annular grouting body is likely to deform to generate cracks, and before the freezing pipe 2 is cut into pipes, the annular space gap needs to be checked and confirmed and grouting reinforcement is carried out, so that the leakage risk caused by pipe cutting construction is reduced. The invention also discloses the device.
And after the freezing construction is finished, removing the rubber hose on the freezing pipe 2. 1-2 bypass valves 3 are additionally arranged on the orifice pipe 1 to be cut off and are arranged at an angle of 90 degrees with the original bypass valves (when a space condition exists, the bypass valves are uniformly arranged);
(1) punching a small opening on the orifice pipe from the bypass valve 3 by using electric welding to observe whether water leaks (or observing by drilling a plurality of holes by using an electric hand drill);
(2) if no leakage exists, the grouting equipment and the pipeline are connected to the bypass valve 3, the pressure is tested by using clear water, if water does not enter the annular space, the annular space can be judged to be grouted compactly, and the annular space enters a pipe cutting and hole sealing process; if water can be pressed in, supplementary grouting is needed;
(3) if leakage occurs, the annular space is supplemented and grouted through the bypass valve 3 (grouting mode: firstly single-liquid grout is grouted to penetrate into the annular space, then double-liquid grout is grouted to accelerate solidification, the mixing ratio of the single-liquid grout and the double-liquid grout is 1:1 cement-water-glass solution volume ratio, wherein the cement-water-cement ratio is 1:1)
(4) After the filling mortar is solidified, a hole is drilled at the root of the orifice pipe by using an electric hand drill, and whether water leakage exists is observed. If no leakage exists, the risk is judged to be eliminated, and the process of cutting the pipe and sealing the hole can be carried out.
Claims (3)
1. The utility model provides a be used for to orifice pipe annular space slip casting condition inspection device, includes bypass valve, slip casting pipeline, grouting equipment, its characterized in that: an annular space is formed between the orifice pipe and the freezing pipe, the orifice pipe is additionally provided with a bypass valve and is communicated with the annular space for observing the leakage condition, and whether grouting is full in the annular space or not and whether crack or not exists after the grouting body is placed for a long time can be judged; the annular space is communicated with the grouting pipeline and grouting equipment through the bypass valve, and the holes in the annular space are reinforced and filled through grouting of the bypass valve, so that the leakage risk of construction cutting of the freezing pipe can be greatly avoided.
2. The apparatus for inspecting grouting conditions in an annulus of an orifice pipe as claimed in claim 1, wherein: and 1-2 bypass valves are additionally arranged on the orifice pipe and are arranged at an angle of 90 degrees with the original bypass valves.
3. A construction method adopting the device for checking grouting condition of the orifice pipe annular space as claimed in claim 1 or 2 is characterized by comprising the following specific construction steps: 1) installing a bypass valve; 2) a hole is formed in the bypass valve; 3) observing the leakage condition of the inner hole of the valve; 4) connecting grouting equipment pipelines, performing a water injection test without leakage, and performing grouting reinforcement with leakage; 5) opening the hole after the slurry is solidified and then checking; 6) after confirming that no leakage exists, the construction of cutting the freezing pipe can be carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911265914.XA CN110924954A (en) | 2019-12-11 | 2019-12-11 | Device and method for checking grouting condition of annular space of orifice pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911265914.XA CN110924954A (en) | 2019-12-11 | 2019-12-11 | Device and method for checking grouting condition of annular space of orifice pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110924954A true CN110924954A (en) | 2020-03-27 |
Family
ID=69858912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911265914.XA Pending CN110924954A (en) | 2019-12-11 | 2019-12-11 | Device and method for checking grouting condition of annular space of orifice pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110924954A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878909A (en) * | 2020-12-24 | 2021-06-01 | 南昌轨道交通集团有限公司 | Anti-gushing method for drilling horizontal freezing hole of foundation pit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666394A (en) * | 2009-09-29 | 2010-03-10 | 北京中煤矿山工程有限公司 | Construction method for pneumatic tamping pipe of horizontal frozen hole on metro bypass |
| CN104863605A (en) * | 2015-04-20 | 2015-08-26 | 北京中煤矿山工程有限公司 | Once-through drilling method capable of cutting barriers in water-rich sand layer |
| CN205077502U (en) * | 2015-10-15 | 2016-03-09 | 北京市轨道交通建设管理有限公司 | A blowout preventer for holing gush sand and emit water |
| JP2016113842A (en) * | 2014-12-17 | 2016-06-23 | 西松建設株式会社 | Water cut-off system, water cut-off method, and construction method for wall body |
| JP2016160717A (en) * | 2015-03-05 | 2016-09-05 | 西松建設株式会社 | Freezing method and freezing device of shield tunnel construction |
| CN206636586U (en) * | 2017-02-10 | 2017-11-14 | 建基建设集团有限公司 | A kind of high security service channel freezing pipe cuts off rear port closing leakage-resistant device |
-
2019
- 2019-12-11 CN CN201911265914.XA patent/CN110924954A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666394A (en) * | 2009-09-29 | 2010-03-10 | 北京中煤矿山工程有限公司 | Construction method for pneumatic tamping pipe of horizontal frozen hole on metro bypass |
| JP2016113842A (en) * | 2014-12-17 | 2016-06-23 | 西松建設株式会社 | Water cut-off system, water cut-off method, and construction method for wall body |
| JP2016160717A (en) * | 2015-03-05 | 2016-09-05 | 西松建設株式会社 | Freezing method and freezing device of shield tunnel construction |
| CN104863605A (en) * | 2015-04-20 | 2015-08-26 | 北京中煤矿山工程有限公司 | Once-through drilling method capable of cutting barriers in water-rich sand layer |
| CN205077502U (en) * | 2015-10-15 | 2016-03-09 | 北京市轨道交通建设管理有限公司 | A blowout preventer for holing gush sand and emit water |
| CN206636586U (en) * | 2017-02-10 | 2017-11-14 | 建基建设集团有限公司 | A kind of high security service channel freezing pipe cuts off rear port closing leakage-resistant device |
Non-Patent Citations (5)
| Title |
|---|
| 李文丽: "水平冻结法在地铁联络通道施工中的应用 ", 《天津建设科技》 * |
| 杨栓民: "《中国交通土建工程学术论文集（2006）》", 31 May 2006 * |
| 江洪: "联络通道冻结法施工风险评估与识别 ", 《上海交通大学学报》 * |
| 牛西龙: "哈尔滨地铁联络通道冻结法施工简述 ", 《中国高新区》 * |
| 穆永奎: "冷冻法在地铁盾构联络通道富水细砂层关键技术 ", 《建筑机械》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878909A (en) * | 2020-12-24 | 2021-06-01 | 南昌轨道交通集团有限公司 | Anti-gushing method for drilling horizontal freezing hole of foundation pit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105804758B (en) | Across constructing metro tunnel method on the rectangular top pipe of the shallow small spacing of earthing big cross section | |
| CN103899324B (en) | A kind of construction method of balancing earth-pressure shielding machine balance originating | |
| CN106869949A (en) | A kind of method that shield machine is received with steel bushing | |
| CN103277108A (en) | Slurry shield tunneling machine underwater arrival construction method | |
| CN107091095A (en) | Existing tunnel MJS engineering methods stake reinforcement system and construction method are worn under water-rich sand layer shield | |
| CN101788082A (en) | Construction method for abutting jack pipe underground | |
| CN106988754A (en) | Narrow space shield tunneling machine starting method | |
| CN107489434B (en) | Method for detecting leakage of underwater waterstop after immersed tunnel installation | |
| CN106015824A (en) | Hydrostatic test plugging device and method for prestressed concrete cylinder pipe | |
| CN108005662B (en) | A treatment method for the geological fracture zone in the underground water-sealed cavern storage area | |
| CN110847155A (en) | Waterproof seam pretreatment method in underground continuous wall construction process | |
| CN102535518B (en) | Plugging method of large seam of underground diaphragm wall | |
| CN205781676U (en) | Prestressed concrete cylinder pipe road water pressure test plugging device | |
| CN116291482A (en) | Advanced grouting reinforcement method for deep-buried long tunnel on earth surface | |
| CN110924954A (en) | Device and method for checking grouting condition of annular space of orifice pipe | |
| CN208011156U (en) | A kind of municipal pipeline plugging device based on liquid nitrogen | |
| CN113175058A (en) | Existing underground jacking pipe access construction method | |
| CN110159866B (en) | Construction method for reinforcing and reinforcing buried steel pipe | |
| CN112112248A (en) | Method for repairing defect of channel box | |
| CN114370286B (en) | Safety hole entering method of shield machine for open caisson structure | |
| CN204004983U (en) | Lined Prestressed concrete cylinder pipe boring device | |
| CN112796773B (en) | Steel sleeve construction process and assembly method | |
| CN112179569B (en) | Water supply steel pipe hydrostatic test inner plugging head and plugging method thereof | |
| CN205975648U (en) | Freezing pipe curtain steel pipe | |
| CN202992424U (en) | Reinforced concrete pipe with sealing rod for jacking construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200327 |
|
| RJ01 | Rejection of invention patent application after publication |