CN114923031A - Trenchless detection method for ultra-buried depth complex pipeline in pipe jacking construction - Google Patents
Trenchless detection method for ultra-buried depth complex pipeline in pipe jacking construction Download PDFInfo
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- CN114923031A CN114923031A CN202210688989.4A CN202210688989A CN114923031A CN 114923031 A CN114923031 A CN 114923031A CN 202210688989 A CN202210688989 A CN 202210688989A CN 114923031 A CN114923031 A CN 114923031A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses a trenchless detection method for a complex pipeline with ultra-deep burial depth in pipe jacking construction, which comprises the following steps: s1, preliminarily determining the plane position of the pipeline to be detected corresponding to the ground and the ground trend; s2, determining a jacking axis of the jacking pipe to be constructed on the ground between the jacking pipe initial well and the jacking pipe receiving well; s3, determining the actual ground trend of the pipeline to be detected, and obviously marking the spatial intersection point of the actual ground trend of the pipeline to be detected and the jacking axis in the step S2; s4, drilling core holes at the spatial intersections by using a core drilling machine; and S5, manually adopting a Luoyang shovel to dig in the core hole, and confirming the vertical burial depth of the pipeline to be detected, so that the actual position of the pipeline to be detected can be determined. The invention comprehensively utilizes the guide instrument and the Luoyang shovel to detect important underground pipelines, and has the characteristics of small temporary road occupation area, less interference to traffic, capability of meeting the protective detection requirement and visual and clear detection result.
Description
Technical Field
The invention relates to the field of pipeline trenchless detection methods. More specifically, the invention relates to a trenchless detection method for a complex pipeline with ultra-buried depth in pipe jacking construction.
Background
In the process of constructing the underground newly-built sewage jacking pipes on urban roads, the inspection, the detection and the protection of underground pipelines along the line are indispensable. The existing single technical means that early pipeline completion data is missing and irregular, the plane position and elevation cannot be accurately determined by the existing single technical means with the burial depth of more than 3m, if the detection result error of the pipeline is large, once the pipeline is damaged by construction, regional resident production and life are damaged, the safe construction of the jacking pipe is also disastrous, and in order to ensure the safe and stable operation of the underground existing pipe network and simultaneously ensure the continuity and safety of the jacking pipe construction process, except for the existing technical method, the method is particularly important for a non-excavation detection method of the complex pipeline with ultra-burial depth and strong interference.
The existing underground pipeline detection technology and method mostly utilize signal induction between a trigger end and a receiving end of equipment or directly carry out large-area pit detection at a pipeline distribution point position to detect the distribution condition of the underground pipeline, and can solve the detection requirement of most underground pipelines, but the method has singleness on complex pipeline detection of special areas (areas with heavy traffic, areas near railway viaducts, which are not beneficial to large-area pit detection), special processes (dragging pipe mode) and special materials (PE pipes), ultra-buried depth (the buried depth is mostly 6-8m), strong interference (an overground power tower, a signal tower, an underground complex pipe network and a reinforcing steel bar layer), large uncertainty of detection results, large errors, great difficulty is brought to the protective construction of the existing important underground pipelines, a plurality of potential safety hazards exist in underground new construction, and higher requirements are brought to the underground pipeline detection work, a reasonable and effective underground pipeline detection method is urgently needed.
Disclosure of Invention
To achieve these objects and other advantages in accordance with the purpose of the invention, a preferred embodiment of the present invention provides a trenchless detection method for complicated pipeline with ultra-buried depth in pipe jacking construction, comprising the steps of:
s1, preliminarily determining the plane position of the pipeline to be detected, which is positioned underground, corresponding to the ground and the ground trend;
s2, determining a jacking axis of the jacking pipe to be constructed on the ground between the jacking pipe initial well and the jacking pipe receiving well according to the plane position and the approximate trend of the pipeline to be detected;
s3, further determining the actual ground trend of the pipeline to be detected, and obviously marking the spatial intersection point of the actual ground trend of the pipeline to be detected and the jacking axis in the step S2;
s4, drilling a core hole at the space intersection point confirmed in the step S3 by using a core drill;
s5, after the step S4 is completed, manually adopting a Luoyang shovel to dig in the core hole, ensuring the digging verticality in the digging process, measuring the rod length of the Luoyang shovel when the pipeline to be detected is dug, and determining the vertical burial depth of the pipeline to be detected, namely determining the actual position of the pipeline to be detected.
Preferably, in the trenchless detection method for complex pipelines with ultra-deep burial in pipe-jacking construction, in step S4, in the temporary road occupation construction process, safety protection facilities are made, traffic divergers are configured until the construction is completed, and the safety protection facilities are removed after the site is cleaned.
Preferably, in the trenchless detection method for the complicated pipeline with the ultra-deep burial depth in the pipe jacking construction, in the step S5, in the manual digging process, if the water amount in the core hole exceeds a threshold value or small broken stones exist in the core hole and a soil sample is not easy to be brought, the cover can be replaced to shovel the soil until the pipeline is dug.
Preferably, in the trenchless detection method for complex pipelines with ultra-deep burial in pipe-jacking construction, in step S5, when the pipeline is to be explored and excavated, whether the pipeline is explored or not needs to be confirmed, and the confirmation process specifically includes the following operations: when the Luoyang shovel meets the pipeline to be detected, the Luoyang shovel is used for tapping the pipeline to be detected, meanwhile, a nearby inspection well is opened, sound is transmitted in the inspection well, and whether the pipeline to be detected is determined.
Preferably, in the trenchless detection method for the complicated pipeline with ultra-deep burial in pipe jacking construction, in step S4, after the core hole is drilled at the spatial intersection point, the road asphalt layer and the hard base layer need to be broken.
Preferably, in the trenchless detection method of the complicated pipeline with ultra-buried depth in pipe jacking construction,
in step S3, the actual ground direction of the pipeline to be detected is further determined, specifically:
if the pipeline to be detected is constructed by adopting a dragging pipe in the initial construction, redundant holes are reserved on the periphery of the pipeline to be detected, the direction of the holes is consistent with that of the pipeline to be detected, a signal transmitter matched with a guide instrument is dragged to the holes, the pipeline near the jacking axis of the jacking pipe to be constructed is detected, whether the pipeline exists or not is determined, if yes, the ground is marked, and all ground marks are connected to form the actual ground direction of the pipeline to be detected.
The invention at least comprises the following beneficial effects: the invention provides a non-excavation detection method for a complex pipeline with ultra-buried depth and strong interference, which comprehensively utilizes a guide instrument and a Luoyang shovel to detect important underground pipelines, solves the problem that large-area excavation pit detection cannot be carried out due to the limitation of a site, simultaneously solves the problem that the buried depth detection accuracy of the existing pipeline instrument for the complex pipeline with large buried depth and strong interference is poor, has the characteristics of small temporary occupied area, less interference to traffic, meeting the requirement of protective detection, visual and clear detection result and the like, provides basic data for the establishment of a protective scheme of the important underground pipeline, and provides safety guarantee for the construction of pipe jacking engineering.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a construction schematic diagram of a trenchless detection method for a complex pipeline with ultra-deep burial depth in pipe jacking construction.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
The following description is provided to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
As shown in FIG. 1, a preferred embodiment of the present invention provides a trenchless detection method for complex pipelines with ultra-deep burial in pipe jacking construction, which comprises the following steps:
s1, preliminarily determining the plane position of the pipeline to be detected, which is positioned underground, corresponding to the ground and the ground trend;
firstly, performing site survey, then, according to a pipeline design drawing of a pipe jacking construction affected area, preliminarily determining the plane position and the approximate trend of the pipeline 1 to be detected by using underground pipeline detection equipment, opening an inspection well under the evidence of a rights unit, checking the model number and the quantity of the pipeline, and finally preliminarily determining the plane position and the ground trend of the pipeline to be detected, which correspond to the ground, of the pipeline to be detected.
S2, determining a jacking axis 2 of the jacking pipe to be constructed on the ground between the jacking pipe originating well 3 and the jacking pipe receiving well 4 according to the plane position and the approximate trend of the pipeline 1 to be detected;
s3, further determining the actual ground trend of the pipeline 1 to be detected, and obviously marking the spatial intersection point of the actual ground trend of the pipeline to be detected and the jacking axis 2 in the step S2;
the following provides a common method for determining the actual ground orientation of the pipeline to be detected,
if the pipeline to be detected is constructed by adopting a dragging pipe in the initial construction, meanwhile, redundant holes 5 are reserved on the periphery of the pipeline to be detected, the direction of the holes 5 is consistent with the direction of the pipeline 1 to be detected, a signal transmitter 6 matched with a guide instrument is dragged to the holes, the pipeline near the jacking axis 2 of the jacking pipe to be constructed, particularly the pipeline possibly having space cross influence with the jacking pipe to be constructed, whether the pipeline exists or not is determined, if the pipeline exists, the pipeline is marked on the ground, and all ground marks are connected to form the actual ground direction of the pipeline 1 to be detected.
The said guide instrument also has a signal receiver 7 matched with the said signal emitter, when the signal emitter 6 generates signal, the said signal receiver 7 on the ground will receive the signal, if the pipeline is met, the signal will change, it can be determined that there is pipeline, if not, there is no pipeline.
This condition is comparatively common in the pipeline of surpassing the buried depth surveys, and consequently the pipeline construction of general surpassing the buried depth mostly adopts the construction of dragging pipe, and it can be in a plurality of holes of the formation of dragging many sleeve pipes in the underground in the work progress, in order to prevent that construction accident from appearing, can bury required hole more than the pipeline usually and bury underground, and part hole wherein is used for burying the pipeline underground, and unnecessary hole is then as reserve.
S4, drilling the core hole 9 at the spatial intersection point confirmed in step S3 by using a core drill;
s5, after the step S4 is completed, manually adopting a Luoyang shovel 8 to dig in the core hole, ensuring the digging verticality in the digging process, measuring the rod length of the Luoyang shovel 8 when the pipeline to be detected is dug, and determining the vertical burial depth of the pipeline to be detected, namely determining the actual position of the pipeline to be detected.
The invention provides a non-excavation detection method for an ultra-buried-depth and strong-interference complex pipeline, which comprehensively utilizes a guide instrument and a Luoyang shovel to detect an underground important pipeline, solves the problem that large-area excavation pit detection cannot be carried out due to site limitation, simultaneously solves the problem that the existing pipeline instrument is poor in buried-depth detection accuracy of a buried large and strong-interference complex pipeline, has the characteristics of small temporary road occupation area, less interference to traffic, satisfaction of protective detection requirements, visual and clear detection results and the like, provides basic data for the establishment of a protective scheme of the existing important pipeline, and provides safety guarantee for pipe-jacking engineering construction.
In another embodiment, in the trenchless detection method for complex pipelines with ultra-deep burial in pipe-jacking construction, in step S4, in the temporary road occupation construction process, safety protection facilities are made, traffic persuaders are configured until the construction is completed, and the safety protection facilities are removed after the site is cleaned.
In another embodiment, in the trenchless detection method for the complex pipeline with the ultra-burial depth in the pipe jacking construction, in the step S5, in the manual digging process, if the water quantity in the core hole exceeds a threshold value or small broken stones exist in the core hole and a soil sample is not easy to be brought, another shovel head on the luoyang shovel can be replaced, and soil is taken until the pipeline is dug by digging.
In another embodiment, in the trenchless detection method for the complex pipeline with ultra-deep burial in pipe jacking construction, in step S5, when the pipeline is detected, whether the detected pipeline is detected or not needs to be confirmed, and the confirmation process specifically includes the following operations: when the Luoyang shovel encounters a pipeline to be detected, the Luoyang shovel is used for tapping the pipeline to be detected, meanwhile, a nearby inspection well is opened, sound transmission in the inspection well is carried out, and whether the pipeline to be detected is the pipeline to be detected or not is confirmed. The touch feeling and the sound feeling brought by different pipeline materials can be felt by means of experience techniques of a Luoyang shovel master.
In another embodiment, in the trenchless detection method for complex pipelines with ultra burial depth in pipe jacking construction, in step S4, after the core hole is drilled at the spatial intersection point, the asphalt layer and the hard base layer of the road surface are also broken.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (6)
1. A trenchless detection method for a complex pipeline with ultra-deep burial depth in pipe jacking construction is characterized by comprising the following steps:
s1, preliminarily determining the plane position of the pipeline to be detected, which is positioned underground, corresponding to the ground and the ground trend;
s2, determining a jacking axis of the jacking pipe to be constructed on the ground between the jacking pipe initial well and the jacking pipe receiving well according to the plane position and the approximate trend of the pipeline to be detected;
s3, further determining the actual ground trend of the pipeline to be detected, and obviously marking the ground intersection point of the actual ground trend of the pipeline to be detected and the jacking axis in the step S2;
s4, drilling a core hole at the space intersection point confirmed in the step S3 by using a core drill;
s5, after the step S4 is completed, manually adopting a Luoyang shovel to dig in the core hole, ensuring the digging verticality in the digging process, measuring the rod length of the Luoyang shovel when the pipeline to be detected is dug, and determining the vertical burial depth of the pipeline to be detected, namely determining the actual position of the pipeline to be detected.
2. The pipe-jacking construction middle-buried complex pipeline trenchless detection method of claim 1, wherein in step S4, in the temporary road-occupying construction process, a safety protection facility is made, a traffic persuader is configured, until the construction is completed, and the safety protection facility is removed after the site is cleaned.
3. The pipe jacking construction underground complicated pipeline trenchless detection method of claim 1, wherein in step S5, if the water quantity in the core hole exceeds a threshold value or small broken stones are in the core hole and a soil sample is not easy to be brought in the manual pipe jacking construction underground complicated pipeline excavation process, the cover can be replaced to shovel the soil until the pipe jacking construction complicated pipeline excavation is reached.
4. The pipe-jacking construction medium-depth complex pipeline trenchless detection method as claimed in claim 1, wherein in step S5, when the pipe is to be explored, whether the pipe is explored needs to be confirmed, and the confirmation process specifically comprises the following operations: when the Luoyang shovel encounters a pipeline to be detected, the Luoyang shovel is used for tapping the pipeline to be detected, meanwhile, a nearby inspection well is opened, sound transmission in the inspection well is carried out, and whether the pipeline to be detected is the pipeline to be detected or not is confirmed.
5. The pipe-jacking construction ultra-buried depth complex pipeline trenchless detection method as claimed in claim 1, wherein in step S4, after drilling the core hole at the spatial intersection point, the road asphalt layer and the hard base layer are broken.
6. The trenchless detection method for the complex pipeline with ultra-buried depth in the pipe jacking construction according to claim 1, wherein in the step S3, the actual ground trend of the pipeline to be detected is further determined, specifically:
if the pipeline to be detected is constructed by adopting a dragging pipe in the initial construction, redundant holes are reserved on the periphery of the pipeline to be detected, the direction of the holes is consistent with that of the pipeline to be detected, a signal transmitter matched with a guide instrument is dragged to the holes, the pipeline near the jacking axis of the jacking pipe to be constructed is detected, whether the pipeline exists or not is determined, if yes, the ground is marked, and all ground marks are connected to form the actual ground direction of the pipeline to be detected.
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| CN202210688989.4A CN114923031A (en) | 2022-06-17 | 2022-06-17 | Trenchless detection method for ultra-buried depth complex pipeline in pipe jacking construction |
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