CN113062355A - Simple and rapid prefabricated pipe gallery head segment installation positioning method - Google Patents
Simple and rapid prefabricated pipe gallery head segment installation positioning method Download PDFInfo
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- CN113062355A CN113062355A CN202110325532.2A CN202110325532A CN113062355A CN 113062355 A CN113062355 A CN 113062355A CN 202110325532 A CN202110325532 A CN 202110325532A CN 113062355 A CN113062355 A CN 113062355A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The application discloses simple and easy quick prefabricated pipe gallery first segment installation positioning method includes following steps: (1) accurately positioning and mounting the first section on a cushion layer; (2) coaxially installing a fixed section in front of the first section with a space between the fixed section and the first section; (3) tensioning and connecting the fixed segment and the first segment through a prefabricated pipe gallery tensioning hole by adopting four threaded ribs; (4) tensioning the threaded rib through a jack; (5) and after tensioning is finished, a reinforcing layer is poured between the first section and the cushion layer, and after the strength of the reinforcing layer reaches over 90 percent, the second section, the third section and the fourth section are connected to one end of the first section, which is far away from the fixed section, through tensioning by virtue of threaded ribs in sequence. This application has solved among the correlation technique in prestressing tendons stretch-draw in-process follow-up prefabricated pipe gallery festival section will cause the influence to the first segment location, and then influences follow-up pipe gallery festival section axis, plane position precision and bell and spigot department water-proof effects's problem.
Description
Technical Field
The application relates to the field of prefabricated comprehensive pipe gallery construction, in particular to a simple and rapid prefabricated pipe gallery head section installation positioning method.
Background
Utility tunnel belongs to the underground works, and utility tunnel once builds, and its cost of maintenance and the degree of difficulty all is higher than the construction period far away, so life is utility tunnel's core subject, and the key in the core, just is utility tunnel's waterproof. Due to the limitation of the length of the sections, the prefabricated pipe gallery cannot be assembled in one step in the actual installation process, and more joints are required. Therefore, the quality of the assembly joint precision and the quality of the waterproof treatment are directly influenced, and the main influencing factors of the assembly joint precision are prefabricated pipe gallery installation linear control and socket joint type joint prestress tension. Prefabricated piping lane is in the installation because of bed course and prefabricated piping lane main part are the same wide, if linear control is not in place in the prefabricated piping lane installation, will directly influence prefabricated piping lane erection joint precision and water-proof effects.
The prefabricated utility tunnel generally adopts the prestressing tendons to connect at present. Follow-up prefabricated piping lane festival section will cause the influence to first festival section location in prestressing tendons tensioning process, and then influences follow-up piping lane festival section axis, plane position precision and bell and spigot department water-proof effects, leads to prefabricated piping lane life to reduce.
To follow-up prefabricated piping lane festival section will cause the influence to the first segment location among the correlation technique in prestressing tendons stretch-draw process, and then influence follow-up piping lane festival section axis, plane position precision and bell and spigot department water-proof effects, lead to the problem that prefabricated piping lane service life reduces, effective solution has not been proposed at present.
Disclosure of Invention
The main object of this application provides a simple and easy quick prefabricated pipe gallery first segment installation positioning method to solve among the prior art in prestressing tendons stretch-draw in-process follow-up prefabricated pipe gallery segment will cause the influence to first segment location, and then influence follow-up pipe gallery segment axis, plane position precision and bell and spigot department water-proof effects, lead to the problem that prefabricated pipe gallery service life reduces.
In order to realize above-mentioned purpose, this application provides a simple and easy quick prefabricated first segment erection positioning structure of piping lane, this simple and easy quick prefabricated first segment erection positioning structure of piping lane includes: the fixing segment and the first segment are arranged on the cushion layer; the first section is located behind the fixed section and is coaxially arranged, a space is reserved between the first section and the fixed section, the fixed section and the first section are in tension connection through four threaded ribs, and the four threaded ribs are divided into two groups and are located on two sides of the first section; a reinforcing layer is arranged between the first section and the cushion layer.
Further, the spacing between the fixation section and the first section is 1-2 m.
Furthermore, the tensile force of the threaded rib on the first section is 0.2-0.5 times of the gravity of the first section.
Further, the spacing between the fixation section and the first section is 1.5 m.
Further, the tensile force of the threaded rib on the first section is 0.3 times of the gravity of the first section.
Furthermore, one end of the first section, which is far away from the fixed section, is connected with a second section, a third section and a fourth section sequentially through a threaded rib in a tensioning manner.
Further, a reinforcing layer is also arranged between the second section, the third section and the fourth section and the cushion layer.
Further, the reinforcing layer comprises epoxy mortar.
According to another aspect of the application, a simple and rapid method for installing and positioning a head segment of a prefabricated pipe gallery comprises the following steps:
(1) accurately positioning and mounting the first section on a cushion layer;
(2) coaxially installing a fixed section in front of the first section with a space between the fixed section and the first section;
(3) tensioning and connecting the fixed segment and the first segment through a prefabricated pipe gallery tensioning hole by adopting four threaded ribs, and fixing by adopting a torque wrench, wherein the four threaded ribs are distributed on two sides of the first segment in a group two by two;
(4) tensioning the threaded rib by a jack, wherein the tension force is controlled to be 0.2-0.5 times of the gravity of the first section;
(5) after tensioning is finished, a reinforcing layer is poured between the first section and the cushion layer, and after the strength of the reinforcing layer reaches over 90%, the end, far away from the fixed section, of the first section is sequentially connected with the second section, the third section and the fourth section through threaded ribs in a tensioning mode;
(6) and after the fourth section is installed, pouring a reinforcing layer between the second section, the third section and the fourth section and the cushion layer.
Further, the step (1) is specifically as follows: the first section is hoisted to a corresponding position and then repeatedly adjusted through three-way fine adjustment of the thick rope and the hoisting equipment, and accurate positioning is completed by means of six control points for measuring the surface of the first section.
Further, the distance between the fixed segment and the first segment in the step (2) is 1-2 m.
Furthermore, in the step (3), a jack is adopted for tensioning, the four threaded bars are simultaneously ensured to be uniformly stressed, and the plane positions of four corners of the first section are monitored in real time during tensioning and fixing.
Furthermore, in the step (4), the threaded rib is tensioned through a jack, and the tension force is controlled to be 0.3 times of the gravity of the first section.
Further, in the step (5), in the process of installing the second section, the third section and the fourth section, the deviation condition of four corners of the first section is measured and observed, and if deviation occurs, deviation is corrected in time through tensioning.
Further, in the step (6), before the reinforcing layer is poured and after the fourth section is installed, the plane position of the first section is measured and monitored, and when the plane position of the first section deviates less than 1mm from the plane position after the third section is installed, the reinforcing layer is poured.
Further, the method also comprises the following steps: (7) and (3) the fixed segment can be removed when the strength of the reinforcing layer reaches more than 90%, and then the rest segments are continuously installed behind the fourth segment.
In the embodiment of the application, the cushion layer, the fixing section and the first section are arranged on the cushion layer; the first section is located behind the fixed section and is coaxially arranged, a space is reserved between the first section and the fixed section, the fixed section and the first section are in tension connection through four threaded ribs, and the four threaded ribs are divided into two groups and are located on two sides of the first section; a reinforcing layer is arranged between the first section and the cushion layer. The purpose of utilizing fixed festival section to carry out accurate positioning to first festival section has been reached to realized preventing to lead to the fact the technological effect of influence to first festival section location in the follow-up festival section installation process that uses first festival section as the basis, and then solved among the correlation technique follow-up prefabricated pipe gallery festival section will lead to the fact the influence to first festival section location in prestressing tendons tensioning process, and then influence follow-up pipe gallery festival section axis, plane position precision and bell and spigot department water-proof effects, lead to the problem that prefabricated pipe gallery service life reduces.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
FIG. 1 is a schematic structural diagram according to an embodiment of the present application;
FIG. 2 is a schematic view of a mounting structure according to an embodiment of the present application;
FIG. 3 is a schematic illustration of a removed fixation segment according to an embodiment of the present application;
wherein, 1 the first section, 2 bed courses, 3 the screw thread muscle, 4 fixed sections, 5 the second section, 6 the third section, 7 the fourth section.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used.
In this application, the terms "upper", "lower", "inside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "disposed," "provided," "connected," "secured," and the like are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 3, this application embodiment provides a simple and easy quick prefabricated pipe gallery first segment installation positioning structure, and this simple and easy quick prefabricated pipe gallery first segment installation positioning structure includes: the bed course 2, the fixed segment 4 and the first segment 1 are arranged on the bed course 2; the first section 1 is positioned behind the fixed section 4 and is coaxially arranged, a space is reserved between the first section 1 and the fixed section 4, the fixed section 4 and the first section 1 are connected in a tensioning mode through four threaded ribs 3, and the four threaded ribs 3 are divided into two groups and are positioned on two sides of the first section 1; a reinforcing layer is provided between the first segment 1 and the bedding 2.
In this embodiment, the fixed segment 4 is used as a fixed pier of the first segment 1, a distance between the fixed segment 4 and the first segment 1 is 1-2m, specifically 1.5m, a tensile force of the threaded rib 3 on the first segment 1 is 0.2-0.5 times, specifically 0.3 times, of a gravity of the first segment 1, and one end of the first segment 1, which is far away from the fixed segment 4, is connected with the second segment 5, the third segment 6 and the fourth segment 7 sequentially through the threaded rib 3 in a tensile manner. A reinforcing layer comprising epoxy mortar is also provided between the second 5, third 6 and fourth 7 segments and the bedding 2.
The simple and rapid prefabricated pipe gallery head segment installing and positioning method comprises the following steps:
(1) after the first section 1 is hoisted to a corresponding position, the first section 1 is repeatedly adjusted through three-way fine adjustment of a thick rope and hoisting equipment, and is accurately positioned by means of six control points for measuring the surface of the first section 1 and is installed on the cushion layer 2;
(2) coaxially installing a fixed section 4 in front of the first section 1, and enabling a space to be reserved between the fixed section 4 and the first section 1, wherein the space between the fixed section 4 and the first section 1 is 1.5 m;
(3) the fixed segment 4 and the first segment 1 are connected through a prefabricated pipe gallery tensioning hole in a tensioning mode through four threaded ribs 3, the fixed segment is fixed through a torque wrench, a jack is used for tensioning, the four threaded ribs 3 are guaranteed to be uniformly stressed simultaneously during tensioning, the four corner plane positions of the first segment 1 are monitored in real time during tensioning and fixing, and the four threaded ribs 3 are distributed on two sides of the first segment 1 in a group in pairs;
(4) tensioning the threaded rib 3 by a jack, wherein the tension force is controlled to be 0.2-0.5 times, specifically 0.3 times, of the gravity of the first section 1;
(5) after tensioning is finished, a reinforcing layer is poured between the first section 1 and the cushion layer 2, and after the strength of the reinforcing layer reaches over 90%, a second section 5, a third section 6 and a fourth section 7 are connected to one end, far away from the fixed section 4, of the first section 1 in a tensioning mode through the threaded ribs 3 in sequence;
(6) after the fourth segment 7 is installed, a reinforcing layer is poured between the second segment 5, the third segment 6 and the fourth segment 7 and the bedding 2.
This embodiment has reached the location accuracy, prefabricated pipe gallery segment plane position control is accurate, improve prefabricated utility tunnel installation quality. Convenient, simple operation promotes prefabricated utility tunnel installation effectiveness. Economical and practical, and reduces labor and material investment. Can not only improve prefabricated piping lane installation quality, can also promote to other box culvert class prefabricated component erection constructions.
Further, in the step (5), in the process of installing the second section 5, the third section 6 and the fourth section 7, the deviation condition of four corners of the first section 1 is measured and observed, and if deviation occurs, deviation is corrected in time through tensioning.
Further, in the step (6), before the reinforcing layer is poured and after the fourth section 7 is installed, the plane position of the first section 1 is measured and monitored, and when the plane position of the first section 1 deviates by less than 1mm compared with the plane position after the third section 6 is installed, the reinforcing layer is poured.
Further, the method also comprises the following steps: (7) the fixed segment 4 can be removed when the strength of the reinforcing layer reaches more than 90%, and then the rest segments can be continuously installed behind the fourth segment 7.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. The simple and rapid prefabricated pipe gallery head segment installing and positioning method is characterized by comprising the following steps of:
(1) accurately positioning and mounting the first section on a cushion layer;
(2) coaxially installing a fixed section in front of the first section with a space between the fixed section and the first section;
(3) tensioning and connecting the fixed segment and the first segment through a prefabricated pipe gallery tensioning hole by adopting four threaded ribs, and fixing by adopting a torque wrench, wherein the four threaded ribs are distributed on two sides of the first segment in a group two by two;
(4) tensioning the threaded rib by a jack, wherein the tension force is controlled to be 0.2-0.5 times of the gravity of the first section;
(5) after tensioning is finished, a reinforcing layer is poured between the first section and the cushion layer, and after the strength of the reinforcing layer reaches over 90%, the end, far away from the fixed section, of the first section is sequentially connected with the second section, the third section and the fourth section through threaded ribs in a tensioning mode;
(6) and after the fourth section is installed, pouring a reinforcing layer between the second section, the third section and the fourth section and the cushion layer.
2. The simple and rapid prefabricating pipe gallery head segment installing and positioning method according to claim 1, wherein the step (1) is specifically as follows: the first section is hoisted to a corresponding position and then repeatedly adjusted through three-way fine adjustment of the thick rope and the hoisting equipment, and accurate positioning is completed by means of six control points for measuring the surface of the first section.
3. The simple and rapid prefabrication pipe gallery head segment installing and positioning method according to claim 1, wherein in the step (2), the distance between the fixed segment and the first segment is 1-2 m.
4. The simple and rapid prefabricated pipe gallery head section installation and positioning method according to claim 1, wherein in the step (3), a jack is adopted for tensioning, four threaded bars are simultaneously guaranteed to be uniformly stressed, and the plane positions of four corners of the first section are monitored in real time during tensioning and fixing.
5. The simple and rapid prefabricated pipe gallery head segment installing and positioning method according to claim 1, wherein in the step (4), the threaded ribs are tensioned through a jack, and the tension force is controlled to be 0.3 times of the gravity of the first segment.
6. The simple and rapid prefabricated pipe gallery head segment installation and positioning method according to any one of claims 1 to 5, wherein in the step (5), in the process of installing the second segment, the third segment and the fourth segment, the deviation of four corners of the first segment is measured and observed, and if the deviation occurs, the deviation is timely corrected through tensioning.
7. The simple and rapid prefabricated pipe gallery head section installation and positioning method according to claim 6, wherein in the step (6), before the reinforcement layer is poured and after the fourth section is installed, the plane position of the first section is measured and monitored, and when the plane position of the first section deviates by less than 1mm compared with the plane position after the third section is installed, the reinforcement layer is poured.
8. The simple and rapid prefabrication pipe gallery head segment installing and positioning method according to claim 7, further comprising:
(7) and (3) the fixed segment can be removed when the strength of the reinforcing layer reaches more than 90%, and then the rest segments are continuously installed behind the fourth segment.
9. The method for installing and positioning the head segment of the simple and rapid prefabricated pipe gallery according to claim 8, wherein the reinforcing layer is epoxy mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110325532.2A CN113062355A (en) | 2021-03-26 | 2021-03-26 | Simple and rapid prefabricated pipe gallery head segment installation positioning method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110325532.2A CN113062355A (en) | 2021-03-26 | 2021-03-26 | Simple and rapid prefabricated pipe gallery head segment installation positioning method |
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| CN113062355A true CN113062355A (en) | 2021-07-02 |
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| CN202110325532.2A Pending CN113062355A (en) | 2021-03-26 | 2021-03-26 | Simple and rapid prefabricated pipe gallery head segment installation positioning method |
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| CN110747903A (en) * | 2019-10-28 | 2020-02-04 | 湖北建科国际工程有限公司 | Porous frame bridge and assembling construction method thereof |
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2021
- 2021-03-26 CN CN202110325532.2A patent/CN113062355A/en active Pending
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| JP2017227070A (en) * | 2016-06-24 | 2017-12-28 | 新日鐵住金株式会社 | Segment wall body and tunnel lining body |
| CN206267152U (en) * | 2016-12-05 | 2017-06-20 | 上海公路桥梁（集团）有限公司 | Prefabricated pipe gallery installs alignment system |
| CN109137965A (en) * | 2017-06-28 | 2019-01-04 | 讯飞智元信息科技有限公司 | A kind of pipe gallery |
| CN109555159A (en) * | 2018-12-31 | 2019-04-02 | 上海城建预制构件有限公司 | A kind of prefabricated pipe gallery method for stretching |
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Non-Patent Citations (1)
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Application publication date: 20210702 |