CN114753471A - Construction method for connecting new and old sewage pipelines with water and suitable for rectangular sewage well - Google Patents
Construction method for connecting new and old sewage pipelines with water and suitable for rectangular sewage well Download PDFInfo
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- CN114753471A CN114753471A CN202210409577.2A CN202210409577A CN114753471A CN 114753471 A CN114753471 A CN 114753471A CN 202210409577 A CN202210409577 A CN 202210409577A CN 114753471 A CN114753471 A CN 114753471A
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- well
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- water
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
- E03F5/021—Connection of sewer pipes to manhole shaft
Abstract
The invention discloses a construction method for connecting new and old sewage pipelines with water, which is suitable for a rectangular sewage well and comprises the following steps: s1: a connecting well is newly built beside the connecting position of the rectangular sewage well, and the connecting well is provided with a connecting hole; s2: one end of the supporting piece penetrates through the connection hole and then abuts against the outer surface of the connection position, and the other end of the supporting piece abuts against the inner wall of the connection well; s3: drilling a plurality of blind holes at the connection position of the rectangular sewage well; s4: placing the prefabricated steel sleeve on the blind hole and the connection portal, and fixing the prefabricated steel sleeve through anti-seepage cement mortar; s5: and (4) drilling through the well wall of the connection position. The invention can realize the connection of new and old sewage pipelines with water, has little influence on the sewage pipeline which is put into use, does not need the stop or interception of the original sewage pipeline, reduces the influence caused by construction, saves the time for blocking the pipeline, saves the economic loss of the stop and reduces the cost for connecting the pipelines; the invention does not need divers to carry out underwater construction, thereby reducing the risk of constructors.
Description
Technical Field
The invention relates to the technical field of pipeline connection, in particular to a water-carrying connection construction method for new and old sewage pipelines of a rectangular sewage well.
Background
With the development of society, infrastructure construction is more and more perfect. Often meet in municipal works work progress, need be at newly-increased rain sewage pipeline in original pipe-line system, just need carry out the pipeline and plug into this moment, the pipeline is plugged into and just is referred to newly-built pipe network and old pipe network intercommunication each other.
In the existing pipeline connection engineering, after an original sewage well is put into use, pipeline connection is generally carried out in a waterless connection mode, the waterless connection is carried out by adopting an air bag to plug the upstream of a connection wellhead, then a water pump pumps out sewage in the butt-jointed well, an operation surface is reserved for construction, or a sewage pipe along the upstream pipeline is suspended for use, and the operation is resumed after the connection work is finished; however, the upstream sewage cannot be completely blocked by 100% through the air bag plugging, and a water pump is required to continuously pump water; under the condition of large water amount, the air bag can not be plugged, the air bag is made of soft rubber, the risk of breakage and leakage exists, and the safety of operating personnel in the well can not be guaranteed when the air bag is exploded; and the waste water pipe along the upstream pipeline is suspended for use, so that the living and production of the upstream area are greatly influenced, and great loss is possibly caused.
Because there are all kinds of drawbacks in the mode of anhydrous connection, adopt the mode of new and old sewer line area water connection can avoid above problem, often need adopt professional underwater equipment to plug into in the area water at present, by diver's underwater construction, nevertheless because sewage is muddy, visibility is low under water, and the relative risk that constructor of underwater operation received is great, and needs professional underwater equipment, and the expense is higher.
Disclosure of Invention
The invention provides a construction method for carrying water to plug in new and old sewage pipelines suitable for a rectangular sewage well, which is used for solving the technical problems of safety risk and high cost in the existing water carrying plug in new and old sewage pipelines.
In order to solve the technical problems, the invention provides a construction method for connecting new and old sewage pipelines with water, which is suitable for a rectangular sewage well, and comprises the following steps:
s1: newly building a connecting well beside the connecting position of the rectangular sewage well, wherein the connecting well is provided with a connecting hole;
s2: enabling one end of a supporting piece to penetrate through the connection hole and then abut against the outer surface of the connection position, and enabling the other end of the supporting piece to abut against the inner wall of the connection well;
s3: drilling a plurality of blind holes at the connection position of the rectangular sewage well;
S4: placing the prefabricated steel sleeve on the blind hole and the connection cave mouth, and fixing the prefabricated steel sleeve through anti-seepage cement mortar;
s5: and drilling through the well wall of the connection position.
Further, the bottom of the connection well is provided with a pocket net which is connected with an external lifting mechanism.
Further, the construction method further comprises the following steps:
s6: the water flow pressure in the rectangular sewage well flushes the well wall concrete blocks at the connection position out of the pocket net, and the lifting mechanism pulls out the pocket net and the well wall concrete blocks out of the connection well.
Further, the step S1 specifically includes:
s11: obtaining the wall thickness a of a rectangular sewage well and the distribution position of reinforcing steel bars in the wall of the well;
s12: chiseling the outer surface of the rectangular sewage well, and carrying out foundation beam ring embedded steel bar butt joint;
s13: and constructing the well wall of the transfer well, and presetting a transfer portal at the position on the transfer well corresponding to the transfer position. Further, the depth h of the blind hole is obtained by the formula (1):
h＝a-x (1)
wherein a is the thickness of the wall of the rectangular sewage well, and x is the thickness of the concrete protective layer of the wall of the rectangular sewage well.
Further, in step S4, one end of a steel sleeve is tightly attached to the inner wall of the access opening, the other end of the steel sleeve is tightly attached to the inner wall of the blind hole, and a gap between the steel sleeve and the rectangular sewage well and the well wall of the access well is filled with impermeable cement mortar.
Further, in step S5, the borehole wall at the docking position is drilled through by a gun machine.
Further, the supporting piece is specifically I-shaped steel.
Furthermore, a water-swelling water stop strip is arranged between the rectangular sewage well and the connecting well.
Further, the connection position and the connection port are both circular, and the radius of the connection position is smaller than that of the connection port. As a further improvement of the process of the invention:
the invention has the following beneficial effects: the construction method for carrying water to connect the new sewage pipeline and the old sewage pipeline, which is suitable for the rectangular sewage well, can realize carrying water to connect the new sewage pipeline and the old sewage pipeline, has small influence on the sewage pipeline which is put into use, does not need to stop or intercept the original sewage pipeline, can be used in the normal use process, reduces the influence caused by construction, saves the time for blocking the pipeline, saves the economic loss of stopping, and reduces the cost for connecting the pipelines; the invention does not need divers to carry out underwater construction, thereby reducing the risk of constructors.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of a construction method of a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of a rectangular bilge well and a docking well for docking according to the construction method of the preferred embodiment of the present invention;
FIG. 3 is a schematic view of the rectangular bilge well and a docking well of the construction method according to the preferred embodiment of the present invention being connected;
FIG. 4 is a side view of a rectangular bilge well and a junction well of the construction method of the preferred embodiment of the present invention being connected;
fig. 5 is a schematic view illustrating wall breaking of a rectangular bilge well according to a construction method of a preferred embodiment of the present invention.
The reference numerals in the figures denote:
100. a rectangular bilge well; 101. old sewage pipes; 102. a docking position; 103. blind holes; 200. a connecting well; 201. a new sewage pipe; 202. a connection portal; 203. a steel sleeve; 300. a support member; 400. net-holding; 500. and (5) blasting machine.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the description of the application should not be construed as an absolute limitation of quantity, but rather as the presence of at least one. The use of "including" or "comprising" and the like in the description of the present application is intended to mean that the elements or items listed before that word or item and their equivalents, while excluding other elements or items, are included in the list of elements or items listed after that word or item.
It should also be noted that, unless expressly stated or limited otherwise, the words "mounted," "connected," "coupled," and the like as used in the description of this application are to be construed broadly and encompass, for example, connections that may be fixed or removable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in the present application according to their specific situation.
As shown in fig. 1, the construction method of the present embodiment for connecting new and old sewer pipes with water, which is suitable for rectangular sewer manholes, is only suitable for square or rectangular sewer manholes, but is not suitable for circular sewer manholes, and specifically comprises the following steps:
s1: a connecting well 200 is newly built beside a connecting position 102 of the rectangular bilge well 100, and the connecting well 200 is provided with a connecting entrance 202;
as shown in fig. 2, a docking well 200 is newly built near the docking position 102 of the rectangular bilge well 100, the construction process is carried out in the docking well 200, and when the rectangular bilge well 100 is in communication with the docking well 200, the old bilge pipe 101 of the rectangular bilge well 100 can be in communication with the new bilge pipe 201 connected with the docking well 200, so that the new and old bilge pipes can be docked.
Step S1 specifically includes:
s11: acquiring the wall thickness a of the rectangular sewage well 100 and the distribution positions of reinforcing steel bars in the wall of the well;
according to the wall thickness a of the rectangular bilge well 100 and the distribution positions of the steel bars, a position 3-5cm away from the concrete protective layer of the steel bars needs to be selected as a preset connection position 102 of the rectangular bilge well 100, a position 5cm away from the concrete protective layer is specifically selected as the preset connection position 102 of the rectangular bilge well 100 and marked, and in the embodiment, the wall thickness a of the rectangular bilge well 100 is specifically 30 cm.
S12: roughening the outer surface of the rectangular sewage well 100, and butting the foundation beam rings by planting ribs;
after a preset connection position 102 of the rectangular bilge well 100 is selected, a foundation pit is dug beside the well wall of the connection position 102 to expose the well wall of the rectangular bilge well 100, then the well wall of the rectangular bilge well 100 is roughened, and foundation beam rings are subjected to embedded steel bar butt joint.
S13: constructing the well wall of the connecting well 200, presetting a connecting entrance 202 at a position corresponding to the connecting position 102 on the connecting well 200, and reinforcing the periphery of the entrance of the connecting entrance 202.
In this embodiment, a water-swelling sealing strip is further disposed between the rectangular bilge well 100 and the docking well 200 to prevent the docking well 200 from being misaligned with the rectangular bilge well 100 due to uneven settlement.
S2: after passing through the docking orifice 202, one end of the support 300 abuts against the outer surface of the docking station 102, and the other end of the support 300 abuts against the inner wall of the docking well 200;
s3: drilling a plurality of blind holes 103 on a connection position 102 of the rectangular bilge well 100;
as shown in fig. 3 and 4, the supporting member 300 is supported against the wall of the rectangular bilge well 100 to be drilled, and the supporting member 300 in this embodiment is specifically an i-beam, which can avoid the danger of drilling at the docking position 102 due to the excessive water pressure in the rectangular bilge well 100.
In the present embodiment, the depth h of the blind hole 103 is obtained by the equation (1):
h＝a-x (1)
where a is the thickness of the wall of the rectangular bilge well 100, which is 30cm in this embodiment, and x is the thickness of the concrete protective layer of the wall of the rectangular bilge well 100, which is 5cm in this embodiment, so that the depth of the blind hole 103 is 25cm in this embodiment.
And a concrete protective layer of 5cm is reserved when the blind hole 103 is drilled, so that the sewage in the rectangular sewage well 100 can be prevented from seeping outwards. In order to keep a concrete protective layer of 5cm, a mark needs to be made on a drilling bit, the drilling bit stops drilling when the drilling bit enters the wall body to reach a mark position, in the embodiment, the wall thickness of the rectangular sewage well 100 is 30cm, the mark is made at the position of 25cm of the drilling bit, and when the mark contacts with the outer side of the wall body, the fact that the drilling bit enters 25cm is indicated, and the residual thickness of the wall body is about 5 cm.
S4: placing the prefabricated steel sleeve 203 on the blind hole 103 and the connection portal 202, and fixing the prefabricated steel sleeve through anti-seepage cement mortar;
after the drilling is finished, the prefabricated steel sleeve 203 is placed between the walls of the rectangular bilge well 100 and the connection well 200 to serve as a pipeline for connection, and in order to better install the steel sleeve 203, in this embodiment, the connection position 102 and the connection entrance 202 are both circular, and the radius of the connection position 102 is smaller than that of the connection entrance 202.
One end of the steel sleeve 203 is tightly attached to the inner wall of the connection portal 202, the other end of the steel sleeve 203 is tightly attached to the inner wall of the blind hole 103, the gap between the steel sleeve 203 and the well wall of the rectangular bilge well 100 and the connection well 200 is filled with impermeable cement mortar, and glass cement is coated on a coil line of the well wall interface. The protection to the wall of a well is realized, simultaneously, the sewage is avoided along with the gap infiltration between the two-layer wall of a well.
S5: the borehole wall at docking station 102 is drilled through.
As shown in fig. 2 and 5, in this embodiment, a pocket 400 is further disposed at the bottom of the access shaft 200, the pocket 400 is connected to an external lifting mechanism, the lifting mechanism of this embodiment is a crane, and the pocket 400 is connected to the crane through a steel rope. After all the personnel are at the safe position, the I-steel is taken out, the borehole wall of the rectangular bilge well 100 is drilled through by the cannon machine 500, in other embodiments, the borehole wall of the connection position 102 can be drilled through in other modes, for example, in a blasting mode, and after the borehole wall of the connection position 102 of the rectangular bilge well 100 is drilled through, the communication between the rectangular bilge well 100 and the connection well 200 is realized.
S6: the water flow pressure in the rectangular bilge well 100 flushes the well wall concrete blocks at the docking position 102 out onto the net 400, and the crane pulls the net 400 and the well wall concrete blocks out of the docking well.
After the well wall of the connection position 102 of the rectangular bilge well 100 is drilled through, under the pressure of water flow in the rectangular bilge well 100, concrete at the connection position 102 can drop into a pocket net 400 laid by the connection well 200 under the impact of the water pressure, and then a crane is used for pulling and lifting a steel rope, the pocket net 400 and fragments at the well wall opening of the rectangular bilge well 100 together, so that the connection work is completed.
The construction method for plugging the new sewage pipeline and the old sewage pipeline with water, which is suitable for the rectangular sewage well, can realize the plugging of the new sewage pipeline and the old sewage pipeline with water, has small influence on the sewage pipeline which is put into use, does not need to stop or intercept the original sewage pipeline, can be used in the normal use process, reduces the influence caused by construction, saves the time for plugging the pipeline, saves the economic loss of stopping, and reduces the cost for plugging the pipeline; the invention does not need divers to carry out underwater construction, thereby reducing the risk suffered by constructors.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A construction method for connecting new and old sewage pipelines with water, which is suitable for a rectangular sewage well, is characterized by comprising the following steps:
s1: newly building a connecting well (200) beside a connecting position (102) of the rectangular bilge well (100), wherein the connecting well (200) is provided with a connecting hole (202);
s2: -passing one end of a support (300) through the docking orifice (202) against the outer surface of the docking station (102), the other end of the support (300) against the inner wall of the docking well (200);
s3: drilling a plurality of blind holes (103) on a connection position (102) of the rectangular bilge well (100);
s4: placing a prefabricated steel sleeve (203) on the blind hole (103) and the connection portal (202), and fixing through anti-seepage cement mortar;
s5: drilling through the wall of the docking station (102).
2. The method for connecting new and old sewer pipes with water for rectangular sewer shafts of claim 1, wherein the bottom of the connecting shaft (200) is provided with a pocket net (400), and the pocket net (400) is connected with an external lifting mechanism.
3. The method of claim 2, wherein the method comprises the following steps:
S6: the water flow pressure in the rectangular bilge well (100) flushes the well wall concrete blocks at the connection position (102) out of the pocket net (400), and the lifting mechanism pulls the pocket net (400) and the well wall concrete blocks out of the connection well (200).
4. The method of claim 1, wherein the step S1 specifically comprises:
s11: obtaining the wall thickness a of a rectangular sewage well (100) and the distribution position of reinforcing steel bars in the wall of the well;
s12: roughening the outer surface of the rectangular sewage well (100), and butting foundation beam rings with embedded bars;
s13: and constructing the well wall of the connecting well (200), and presetting a connecting portal (202) at the position, corresponding to the connecting position (102), on the connecting well (200).
5. The method for connecting new and old sewer pipes with water for rectangular bilge wells according to claim 4, wherein the depth h of the blind hole (103) is obtained by the formula (1):
h ＝ a-x (1)
wherein a is the thickness of the wall of the rectangular sewage well (100), and x is the thickness of the concrete protective layer of the wall of the rectangular sewage well (100).
6. The method of claim 1, wherein the method for constructing a rectangular bilge well by connecting old and new sewer pipes with water comprises,
In step S4, one end of a steel sleeve (203) is tightly attached to the inner wall of the connection portal (202), the other end of the steel sleeve (203) is tightly attached to the inner wall of the blind hole (103), and a gap between the steel sleeve (203) and the rectangular bilge well (100) and the well wall of the connection well (200) is filled with impermeable cement mortar.
7. The method for constructing a sewage pipeline with water junction for a rectangular sewer manhole according to claim 1,
in step S5, the borehole wall of the docking station (102) is drilled through, in particular by the cannon (500).
8. The method for the construction of the connection of old and new sewer pipes with water for rectangular sewer manholes according to claim 1, wherein said support member (300) is a steel I-beam.
9. The method for constructing the rectangular bilge well with the water for connecting the old and new sewage pipes according to claim 1, wherein a water-swelling stop strip is installed between the rectangular bilge well (100) and the connecting well (200).
10. The method for carrying water to connect new and old sewer pipes suitable for rectangular bilge wells according to claim 1, wherein the connecting position (102) and the connecting hole (202) are both circular, and the radius of the connecting position (102) is smaller than the radius of the connecting hole (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210409577.2A CN114753471B (en) | 2022-04-19 | 2022-04-19 | New and old sewage pipeline water connection construction method suitable for rectangular sewage well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210409577.2A CN114753471B (en) | 2022-04-19 | 2022-04-19 | New and old sewage pipeline water connection construction method suitable for rectangular sewage well |
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| CN114753471A true CN114753471A (en) | 2022-07-15 |
| CN114753471B CN114753471B (en) | 2023-10-03 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090080848A (en) * | 2008-01-22 | 2009-07-27 | 동양특수콘크리트 (주) | Non-Digging Pipeline Construction Method Using Existing Pipeline |
| CN109208737A (en) * | 2018-10-09 | 2019-01-15 | 中铁十局集团城市轨道工程有限公司 | A kind of down-stream pipeline changes move in new pipe is plugged into and former pipe blocks construction method |
| CN111236387A (en) * | 2020-01-17 | 2020-06-05 | 中铁十二局集团有限公司 | Construction method for connecting newly-built sewage pipe with existing sewage pipe |
| CN114150749A (en) * | 2021-12-31 | 2022-03-08 | 广东省基础工程集团有限公司 | Construction method for non-stop connection of new and old sewage wells |
-
2022
- 2022-04-19 CN CN202210409577.2A patent/CN114753471B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090080848A (en) * | 2008-01-22 | 2009-07-27 | 동양특수콘크리트 (주) | Non-Digging Pipeline Construction Method Using Existing Pipeline |
| CN109208737A (en) * | 2018-10-09 | 2019-01-15 | 中铁十局集团城市轨道工程有限公司 | A kind of down-stream pipeline changes move in new pipe is plugged into and former pipe blocks construction method |
| CN111236387A (en) * | 2020-01-17 | 2020-06-05 | 中铁十二局集团有限公司 | Construction method for connecting newly-built sewage pipe with existing sewage pipe |
| CN114150749A (en) * | 2021-12-31 | 2022-03-08 | 广东省基础工程集团有限公司 | Construction method for non-stop connection of new and old sewage wells |
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