CN116240897A - Anti-blocking mortar lifting process - Google Patents
Anti-blocking mortar lifting process Download PDFInfo
- Publication number
- CN116240897A CN116240897A CN202310105022.3A CN202310105022A CN116240897A CN 116240897 A CN116240897 A CN 116240897A CN 202310105022 A CN202310105022 A CN 202310105022A CN 116240897 A CN116240897 A CN 116240897A
- Authority
- CN
- China
- Prior art keywords
- mortar
- guide pipe
- conduit
- pouring
- pile foundation
- 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
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000008569 process Effects 0.000 title claims abstract description 25
- 238000005096 rolling process Methods 0.000 claims abstract description 34
- 230000009471 action Effects 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 239000004575 stone Substances 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 5
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 239000004579 marble Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims 7
- 238000005266 casting Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/06—Placing concrete under water
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
Abstract
The invention discloses an anti-blocking mortar lifting process, which is characterized in that the underwater pressure-bearing performance, the joint tensile performance, the sealing performance and the heat insulation performance of a conduit are detected, a qualified pouring conduit is selected, the selected conduit is submerged by a lifting device, the bottom of the conduit is ensured to be aligned with a pile foundation, the distance between the conduit and the pile foundation is ensured to be larger than 30 cm, stirred mortar is poured into the conduit by a pouring machine, the stirred mortar falls on the top of the pile foundation to perform pouring operation, in the process, rolling balls can be poured into the conduit, high-pressure gas is injected into the conduit, and the rolling balls are enabled to rotate and move under the action of the high-pressure gas, so that the rolling balls contact with residual mortar on the inner wall of the conduit, and the rolling balls can rapidly process the residual mortar, so that the residual mortar is separated from the inner wall of the conduit, the diameter of the conduit is prevented from being reduced, and the normal performance of the mortar pouring operation is ensured.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to an anti-blocking mortar lifting process.
Background
The conduit method for casting concrete is a common underwater concrete construction method, is applied to projects with water depth not exceeding 25 meters, and when casting, the conduit rises synchronously with the height of the cast mortar, so that in order to realize the step, the conduit is generally connected with lifting equipment, and the lifting equipment can lift the conduit slowly.
In the pouring process of the guide pipe, although the mortar falls down due to gravity, certain mortar is adhered to the inner wall of the guide pipe, and the adhered mortar is gradually solidified along with the pouring time, so that the guide pipe is sometimes blocked, the inner diameter of the mortar passing through the guide pipe is gradually reduced, and the pouring operation of the mortar is affected.
Disclosure of Invention
The invention aims to provide an anti-blocking type mortar lifting process, which aims to solve the problems that the inner wall of a conduit proposed in the background art is adhered with certain mortar, and the adhered mortar is gradually solidified along with the pouring time, so that the conduit is blocked sometimes, and the inner diameter of the mortar passing through the conduit is gradually reduced.
In order to achieve the above purpose, the present invention provides the following technical solutions: an anti-blocking mortar lifting process comprises the following steps:
step one: detecting the underwater pressure bearing performance, the joint tensile performance, the sealing performance and the heat insulation performance of the guide pipe, and selecting a qualified pouring guide pipe;
step two: sinking the selected guide pipe by using a lifting device, ensuring that the bottom of the guide pipe is aligned with the pile foundation, and ensuring that the distance between the guide pipe and the pile foundation is more than 30 cm;
step three: pouring the stirred mortar into the guide pipe by using a pouring machine, so that the mortar falls on the top of the pile foundation through the guide pipe to perform pouring operation;
step four: the lifting device continuously works to lift the guide pipe, so that the distance between the mortar at the bottom of the guide pipe and the mortar at the top of the pile foundation is ensured to be more than 30 cm;
step five: the rolling ball is put into the guide pipe, and high-pressure gas is injected into the guide pipe, so that the rolling ball rotates and moves under the action of the high-pressure gas, the rolling ball contacts the residual mortar on the inner wall of the guide pipe, and the rolling ball can rapidly treat the residual mortar due to the rotation of the rolling ball, so that the residual mortar is separated from the inner wall of the guide pipe, and the surface of the rolling ball cannot be adhered with excessive mortar;
step six: continuously using a pouring machine to throw the stirred mortar into the guide pipe, so that the mortar falls on the top of the pile foundation through the guide pipe, and continuously pouring;
step seven: repeating the operations from the fourth step to the sixth step until pouring is completed, and completely dismantling the catheter after pouring is completed.
Further, the diameter of the conduit is 25 to 30 cm, and the radius of action of the conduit is less than 2.5 meters.
Further, the strength grade of the mortar is larger than C25, and the mortar aggregate is prepared from medium and small stones: medium stone: the proportion of the marble is 2.5:4:3.5, the maximum grain size of the mortar is less than 30 mm.
Further, the pipe is removed after lifting one pipe section by the height.
Further, the conduit is buried in the mortar at 2.5 to 3.5 meters while sinking.
Further, the mortar pouring time is 3 to 7 hours, and the mortar is continuously stirred in the process so as to ensure the uniformity of the mortar.
Further, the rising speed of the conduit is equal to the rising speed of the mortar.
Further, the mortar has a retention depth within the conduit of 20 to 35 percent of the length of the conduit.
Compared with the prior art, the invention has the beneficial effects that:
in the mortar pouring process, the rolling ball can be put into the guide pipe, and meanwhile, high-pressure gas is injected into the guide pipe, so that the rolling ball rotates and moves under the action of the high-pressure gas, and is in contact with residual mortar on the inner wall of the guide pipe, and the rolling ball can rapidly treat the residual mortar to separate from the inner wall of the guide pipe, so that the diameter of the mortar inside the guide pipe, which can pass through, is reduced, normal mortar pouring operation is ensured, and the rolling ball cannot adhere to excessive mortar due to rotation, so that the cleaning performance of the rolling ball on the inner wall of the guide pipe is ensured.
Drawings
FIG. 1 is a schematic flow chart of an anti-blocking mortar lifting process according to the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, an anti-blocking mortar lifting process comprises the following steps:
step one: detecting the underwater pressure-bearing performance, the joint tensile performance, the sealing performance and the heat-insulating performance of the guide pipe, selecting a qualified pouring guide pipe, wherein the guide pipe is an important tool for pouring underwater mortar, the guide pipe is required to have enough strength and rigidity, good sealing performance, smooth pipe wall, straight guide pipe and no perforation crack, and an elastic gasket is required to seal the joint of the guide pipe;
step two: sinking the selected guide pipe by using a lifting device, ensuring that the bottom of the guide pipe is aligned with the pile foundation, and ensuring that the distance between the guide pipe and the pile foundation is more than 30 cm, so that mortar discharged by the guide pipe falls on the top of the pile foundation;
step three: pouring the stirred mortar, also called concrete, into the guide pipe by using a pouring machine, and enabling the mortar to fall on the top of the pile foundation through the guide pipe so as to perform pouring operation;
step four: the lifting device continuously works to lift the guide pipe, so that the distance between the mortar at the bottom of the guide pipe and the mortar at the top of the pile foundation is ensured to be more than 30 cm, and enough mortar discharge space is reserved;
step five: the rolling ball is put into the guide pipe, and high-pressure gas is injected into the guide pipe, so that the rolling ball rotates and moves under the action of the high-pressure gas, and the rolling ball contacts the residual mortar on the inner wall of the guide pipe, and the rolling ball can rapidly treat the residual mortar to separate from the inner wall of the guide pipe due to the rotation of the rolling ball, and the surface of the rolling ball cannot adhere to excessive mortar, so that the cleaning performance of the rolling ball on the inner wall of the guide pipe is ensured;
step six: pouring the stirred mortar into the guide pipe by using the pouring machine continuously, enabling the mortar to fall on the top of the pile foundation through the guide pipe, and continuously pouring, wherein the pouring machine and the stirring machine are large in capacity, and equipment is required to be replaced in the process of pouring the mortar;
step seven: repeating the operations from the fourth step to the sixth step until pouring is completed, and completely dismantling the guide pipe after pouring is completed, wherein at the moment, if the pouring height of the mortar exceeds the designed height, the mortar is required to be removed after being coagulated.
The diameter of the guide pipe is 25-30 cm, the action radius of the guide pipe is smaller than 2.5 m, the guide pipes are connected through the flange, the length of each guide pipe is 0.5-1.5 m, and the action radius of the guide pipe is smaller than 2.5 m, so that the spreading area of mortar is not excessively large after the mortar falls.
Wherein the strength grade of the mortar is larger than C25, and the mortar aggregate is prepared from medium and small stones: medium stone: the proportion of the marble is 2.5:4:3.5, the maximum grain size of the mortar is smaller than 30 mm, so that the mortar is convenient to descend in the guide pipe.
After the pipe joint is lifted to the height, the pipe joint is removed, and when pouring is completed, all the pipe joints are removed.
When the conduit is sunk, the conduit is buried into mortar for 2.5 to 3.5 meters, so that the conduit has good stability, and can only move up and down but cannot move horizontally.
Wherein the mortar pouring time is 3 to 7 hours, the mortar is continuously stirred in the process so as to ensure the uniformity of the mortar, and the time of the intermediate stopping time is not more than 10 minutes, so that the uniformity of the mortar pouring is ensured.
Wherein the rising speed of the conduit is equal to the rising speed of the mortar, so that the conduit and the mortar rise synchronously.
The retention depth of the mortar in the guide pipe is 20 to 35 percent of the length of the guide pipe, so that continuity of the mortar in the pouring process is ensured, and pouring quality is further ensured.
The working principle and the using flow of the invention are as follows: the method comprises the steps of detecting the underwater pressure bearing performance, the joint tensile performance, the sealing performance and the heat insulation performance of a conduit, selecting a qualified pouring conduit, sinking the selected conduit by using a lifting device, ensuring that the bottom of the conduit is aligned to a pile foundation, ensuring that the distance between the conduit and the pile foundation is larger than 30 cm, throwing stirred mortar into the conduit by using a pouring machine, enabling the mortar to fall on the top of the pile foundation through the conduit, pouring the mortar, continuously working by using the lifting device, lifting the conduit, ensuring that the distance between the mortar on the bottom of the conduit and the top of the pile foundation is larger than 30 cm, throwing a rolling ball into the conduit, simultaneously pouring high-pressure gas into the conduit, enabling the rolling ball to rotate and move under the action of the high-pressure gas, and enabling the rolling ball to contact residual mortar on the inner wall of the conduit, and because of the rotation of the rolling ball, rapidly processing the residual mortar, enabling the rolling ball to be separated from the inner wall of the conduit, enabling the surface of the rolling ball not to adhere too much mortar, continuing pouring the stirred mortar into the conduit through the conduit, enabling the conduit to fall on the top of the pile foundation, pouring the conduit, continuously, pouring the mortar until pouring steps from four to six are repeated until pouring steps are completed, and the pouring steps are completely removed.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An anti-blocking mortar lifting process is characterized in that: the method comprises the following steps:
step one: detecting the underwater pressure bearing performance, the joint tensile performance, the sealing performance and the heat insulation performance of the guide pipe, and selecting a qualified pouring guide pipe;
step two: sinking the selected guide pipe by using a lifting device, ensuring that the bottom of the guide pipe is aligned with the pile foundation, and ensuring that the distance between the guide pipe and the pile foundation is more than 30 cm;
step three: pouring the stirred mortar into the guide pipe by using a pouring machine, so that the mortar falls on the top of the pile foundation through the guide pipe to perform pouring operation;
step four: the lifting device continuously works to lift the guide pipe, so that the distance between the mortar at the bottom of the guide pipe and the mortar at the top of the pile foundation is ensured to be more than 30 cm;
step five: the rolling ball is put into the guide pipe, and high-pressure gas is injected into the guide pipe, so that the rolling ball rotates and moves under the action of the high-pressure gas, the rolling ball contacts the residual mortar on the inner wall of the guide pipe, and the rolling ball can rapidly treat the residual mortar due to the rotation of the rolling ball, so that the residual mortar is separated from the inner wall of the guide pipe, and the surface of the rolling ball cannot be adhered with excessive mortar;
step six: continuously using a pouring machine to throw the stirred mortar into the guide pipe, so that the mortar falls on the top of the pile foundation through the guide pipe, and continuously pouring;
step seven: repeating the operations from the fourth step to the sixth step until pouring is completed, and completely dismantling the catheter after pouring is completed.
2. The anti-clogging slurry lifting process of claim 1 wherein: the diameter of the conduit is 25-30 cm, and the radius of action of the conduit is less than 2.5 m.
3. The anti-clogging slurry lifting process of claim 1 wherein: the strength grade of the mortar is larger than C25, and the mortar aggregate is prepared from medium and small stones: medium stone: the proportion of the marble is 2.5:4:3.5, the maximum grain size of the mortar is less than 30 mm.
4. The anti-clogging slurry lifting process of claim 1 wherein: the pipe is removed after lifting one pipe section by the height.
5. The anti-clogging slurry lifting process of claim 1 wherein: the conduit is buried in the mortar at 2.5 to 3.5 meters when submerged.
6. The anti-clogging slurry lifting process of claim 1 wherein: the pouring time of the mortar is 3 to 7 hours, and the mortar is continuously stirred in the process so as to ensure the uniformity of the mortar.
7. The anti-clogging slurry lifting process of claim 1 wherein: the rising speed of the guide pipe is equal to that of the mortar.
8. The anti-clogging slurry lifting process of claim 1 wherein: the mortar has a retention depth within the conduit of 20 to 35 percent of the length of the conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310105022.3A CN116240897A (en) | 2023-02-06 | 2023-02-06 | Anti-blocking mortar lifting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310105022.3A CN116240897A (en) | 2023-02-06 | 2023-02-06 | Anti-blocking mortar lifting process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116240897A true CN116240897A (en) | 2023-06-09 |
Family
ID=86629187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310105022.3A Pending CN116240897A (en) | 2023-02-06 | 2023-02-06 | Anti-blocking mortar lifting process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116240897A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204769768U (en) * | 2015-07-07 | 2015-11-18 | 中兴建设有限公司 | Concrete feeding is belt cleaning device for pipeline |
| CN111764393A (en) * | 2020-06-30 | 2020-10-13 | 首钢水城钢铁(集团)赛德建设有限公司 | Pressure measurement inspection device for guide pipe for underwater concrete pouring and pouring method |
-
2023
- 2023-02-06 CN CN202310105022.3A patent/CN116240897A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204769768U (en) * | 2015-07-07 | 2015-11-18 | 中兴建设有限公司 | Concrete feeding is belt cleaning device for pipeline |
| CN111764393A (en) * | 2020-06-30 | 2020-10-13 | 首钢水城钢铁(集团)赛德建设有限公司 | Pressure measurement inspection device for guide pipe for underwater concrete pouring and pouring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110409510B (en) | Water stopping structure at joint of engagement pile and ground continuous wall | |
| CN103470046B (en) | The casting method of ultra-high steel tube concrete column tremie method concrete casting device | |
| CN108166517A (en) | For the shut-in well method and well-sealing device of superelevation floor height hydraulic pressure dewatering well of deep well | |
| CN107542093B (en) | Bottom cleaning method for punched cast-in-place pile | |
| CN111364469B (en) | Underwater concrete pouring device, construction method and application of underwater concrete pouring device in ultra-large deepwater open caisson foundation | |
| CN110409511B (en) | Water stopping method for joint of secant pile and diaphragm wall | |
| CN116240897A (en) | Anti-blocking mortar lifting process | |
| CN117107749A (en) | Construction method of large-diameter punched bored pile under influence of sea water seepage in sea-filling land-building area | |
| WO2018214143A1 (en) | Construction method for plugging dewatering well having penetrating bottom plate in foundation pit | |
| CN212801603U (en) | Foundation pit bottom plate reserved precipitation plugging device | |
| CN212200044U (en) | Waterproof and drainage device for expansion joint of bridge elastomer | |
| CN211849527U (en) | High water pressure drop well combination plugging device | |
| CN212612487U (en) | Pile-first interpolation type jacket grouting plugging system | |
| CN108035357A (en) | Filling pile construction scheme and its funnel | |
| CN114703878A (en) | Plugging and draining device for dewatering well and construction method | |
| CN210151718U (en) | Reinforced concrete base | |
| CN211849528U (en) | Confined water precipitation well shut-in device | |
| CN107761737A (en) | Based on the casting craft to underwater concrete | |
| CN203701079U (en) | Pneumatic anti-settling circulating system for drilled pile slurry | |
| CN218622291U (en) | Foundation pit dewatering and well sealing construction structure | |
| CN202748197U (en) | Repair water-containing detection device for external wall split bolt hole | |
| CN219343272U (en) | Drain pipe with sealing disc and water stop ring | |
| CN206279531U (en) | One kind is without water proof bolt underwater grouting constructing device | |
| CN114277856B (en) | Anti-scour construction method for single pile foundation based on mosaic underwater cemented rock-fill | |
| CN217150321U (en) | Water drainage system falls in anti little foundation ditch under in rock foundation ditch |
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: 20230609 |