CN115539129A

CN115539129A - Construction and operation integrated control network in tunnel and construction method thereof

Info

Publication number: CN115539129A
Application number: CN202211268925.5A
Authority: CN
Inventors: 张晓波; 粟剑; 许尔林; 孙晓磊; 任聪; 宋健
Original assignee: China Railway Erju 2nd Engineering Co Ltd
Current assignee: China Railway Erju 2nd Engineering Co Ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2022-12-30

Abstract

The invention discloses a construction and operation integrated control network in a tunnel and a construction method thereof, wherein a plurality of control network point pairs are uniformly distributed on the left side and the right side of the tunnel (1) of the integrated control network, the adjacent control network point pairs on the left side and the right side of the tunnel (1) are arranged in a crossed manner, the control network point pairs comprise detachable marks (2, 3), and double wires formed by the detachable marks (2, 3) can be used as construction CPII and operation CPII. And a CPII control point in the hole is not required to be separately arranged before measuring the CPIII, so that the aims of saving the cost and the construction time can be fulfilled.

Description

Construction and operation integrated control network in tunnel and construction method thereof

Technical Field

The invention relates to the technical field of tunnel construction, in particular to a control network integrating construction and operation in a tunnel and a construction method thereof.

Background

At present, the CPII measuring mark of the railway tunnel construction control network is usually built by burying a common stainless steel mark on an inverted arch filling layer or arranging a forced centering mark on a two-lining-side wall. The operation control network CPII is buried on the top surface of the trench cable trough after the tunnel is communicated and the trench cable trough construction is finished, and the construction control network CPII arranged on the filling surface in the past is damaged due to the fact that the upper structure of the tunnel is constructed. If the conventional mandatory observation mark buried on the side wall is generally required to be more than 40cm away from the wall to avoid the influence of side refraction, the conventional mandatory observation mark is extremely easy to be damaged by construction machinery or a movable formwork during the construction of a ditch cable trough, and is not beautiful and difficult to store in appearance. If the distance between the wall and the measuring device is too close, the normal use of the measuring device cannot be guaranteed, the measuring precision is low due to the influence of side refraction, and the measuring result does not meet the standard requirement.

The conventional construction method has several problems as follows: 1. because the construction control network is damaged, specific errors and through errors of the construction control network and the operation control network cannot be clearly seen. 2. The measurement of the operation control network CPII by the conventional method needs to be carried out after the construction of the ditch cable trough is finished, however, the ditch cable trough is usually a process for finishing the final construction after the tunnel is penetrated, and the measurement period of the track control network CPIII can be influenced, so that the whole project period can be influenced. 3. In the aspect of economic benefit, the traditional method needs to arrange the CPII control net twice, which wastes manpower, material resources and time and increases redundant economic expenditure for purchasing different measuring marks for many times.

Disclosure of Invention

Aiming at the technical problem, the invention provides an integrated control network for construction and operation in a tunnel and a construction method thereof.

The invention is realized by adopting the following technical scheme: the utility model provides a construction and operation integration control network in tunnel, has placed a plurality of control network point pairs in the tunnel left and right sides equipartition, and the adjacent control network point pair cross arrangement in the tunnel left and right sides, the control network point pair includes detachable sign, detachable sign is last to be provided with construction control network, and measured data can regard as later stage track control network CPIII measured data of starting to calculate.

Furthermore, the interval between adjacent control network point pairs on the left side and the right side of the tunnel is between 10m and 20m.

Furthermore, a ditch cable groove is formed in the bottom of the tunnel, the track control network CPIII mark is arranged at the position of 30cm to 50cm above the top surface of the ditch cable groove, the detachable mark is arranged above the track control network CPIII, and coordinate data of the detachable mark can be used as calculation data of the CPIII.

Furthermore, a ditch cable trough is arranged at the bottom of the tunnel, and a network point pair is controlled to be arranged at the position of 150cm to 180cm above the top surface of the ditch cable trough.

Further, the linear section distance of the integrated control net is 350m to 400m.

Further, detachable sign includes fixed plate and fly leaf, the fixed plate is fixed in on the wall in tunnel, the fly leaf passes through connecting bolt detachable and sets up on the fixed plate.

Further, a detachable measuring instrument is arranged on the movable plate.

A construction method of a tunnel construction and operation integrated control network comprises the following steps:

s1: arranging a plurality of control network point pairs at the left side and the right side of the tunnel at intervals of 10 m-20 m in a crossed manner;

s2: arranging a construction control network on each control network point pair, wherein the construction control network can be used as an operation control network in the later period, and the construction control network is used for measuring the operation control network after the tunnel construction is run through;

s3: and when the track control network CPIII is measured, taking the coordinate data on the detachable mark as the starting data of the CPIII to measure the track control network.

The invention has the beneficial effects that: the construction method is low in implementation cost, and compared with a conventional construction mode, the construction method can easily find out the construction through error and the construction error of the corresponding mileage of each control point, so that the construction measurement quality is checked; the CPII of the operation control network is finished only after the tunnel is penetrated, the construction of the ditch cable trough does not have any influence on the measuring period of the CPII of the track control network, and the construction period can be greatly shortened.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic diagram of the present invention;

FIG. 2 is a sectional view of a tunnel;

FIG. 3 is a schematic diagram of a conventional construction;

FIG. 4 is a schematic view of a detachable sign structure;

FIG. 5 is a connecting view of the fixed plate and the movable plate;

in the figure, 1-tunnel, 2, 3-detachable mark, 4-CPIII measuring mark, 5-ditch cable trough, 6-movable plate, 7-fixed plate, 8-connecting bolt and 9-measuring instrument.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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 invention.

Example 1:

referring to fig. 1 and 2, a plurality of control network point pairs are uniformly distributed on the left side and the right side of a tunnel 1, and the adjacent control network point pairs on the left side and the right side of the tunnel 1 are arranged in a crossed manner, wherein the control network point pairs comprise

detachable marks

2 and 3, and a construction control network or an operation control network is arranged on the

detachable marks

2 and 3. Namely: the control network point pair is composed of

detachable marks

2 and 3 to form a Z-shaped double-wire, and the

detachable marks

2 and 3 are provided with a construction control network later stage to serve as an operation control network.

In the network type setting of the control network, the conventional control network layout is to arrange double conductors at the same positions on the left side and the right side of a tunnel (refer to fig. 3), but in order to more effectively avoid the influence of construction on measurement and the influence of side refraction on measurement precision, the adjacent control network points are arranged in a left-right cross mode, namely a Z-shaped network, and meanwhile, in order to ensure that the automatic observation of an instrument is not influenced during measurement, the intervals of the adjacent control network point pairs on the left side and the right side of the tunnel 1 are 10m to 20m, the automatic selection is carried out according to the tunnel section situation in practical application, and the automatic observation at a sufficient angle is not influenced during measurement. In addition, in the distance of the control network, the conventional operation control network is required to be in a straight line section of 300m to 600m, the construction control network is generally in a straight line section of 250m to 400m, and in order to meet the measurement environment requirement of the construction control network, the straight line section control point of the integrated control network is paired with the distance of 350m to 400m, so that the construction control network and the operation control network can be guaranteed to meet the side length requirement.

In the arrangement height of the

detachable marks

2 and 3, the common track control network CPIII measuring mark 4 is arranged at the position of 30cm to 50cm on a ditch cable trough, and in order to preserve the CPII (construction control network and operation control network) measuring mark for a long time and ensure that the CPII measurement of the track control network cannot be influenced by the automatic observation of an instrument and cannot be damaged by the construction of the ditch cable trough, the CPII and CPIII marks are required to be separated in space, therefore, in the embodiment, the

detachable marks

2 and 3 are arranged at the position of 150cm to 180cm above the top surface of the ditch cable trough 5. The measurement can be performed by means of stairs.

Referring to fig. 4 and 5, the

detachable signs

2 and 3 include a fixed plate 7 and a movable plate 6, the fixed plate 7 is fixed on the wall surface of the tunnel 1, the movable plate 6 is detachably disposed on the fixed plate 7 through a connecting bolt 8, and a detachable measuring instrument 9 is disposed on the movable plate 6. Furthermore, the fixing plate 7 is made of stainless steel, the length, the width and the thickness of the fixing plate are respectively 20cm × 10cm × 5mm, the fixing plate is fixed on the wall surface of the tunnel by welding steel bars, and three flat holes with the diameter of 16.1mm are formed in the fixing plate; the movable plate 6 is made of stainless steel, the length, the width and the thickness are 40cm 15cm 8mm respectively, one end of the movable plate corresponds to the fixed plate 7 and is provided with three screw holes with the diameter of 16mm, the movable plate is connected to the fixed plate 7 through connecting bolts 8, the end head of the other end of the movable plate is polished into a semicircular component with the radius of 7.5mm, the circle center of the movable plate is provided with a flat hole with the diameter of 16.1mm, the measuring instrument 9 is fixed on the flat hole through the connecting bolts 8 to achieve the measuring purpose, the sufficient distance between the measuring instrument 9 and a wall body can be ensured, the movable plate is not influenced by side refraction, and the movable plate 6 can be detached after the measurement is completed. The connecting bolt 8 is cylindrical stainless steel with the length of 55mm and the diameter of 25mm, and one end of the connecting bolt is processed into a bolt type connecting piece with the diameter of 16mm and the length of 15 mm. The invention effectively solves the problems that the measuring mark in narrow spaces such as tunnels is difficult to operate and is easy to be damaged by mechanical collision, can easily and quickly fix the measuring instrument, and has the advantages that the centering mark can be detached, is easy to store, is difficult to damage and can be repeatedly used.

The construction method comprises the following steps:

s1: a plurality of control network point pairs are arranged at the left side and the right side of the tunnel 1 at intervals of 20m in a crossed manner;

s2: arranging a construction control network on each control network point pair as an operation control network at the later stage, completing the measurement of the construction control network, performing the pull-through measurement of the whole tunnel after the tunnel construction is run through, and using the result as the calculation data of the CPIII measurement;

the invention has the following technical effects:

the conventional construction control network can not clearly see the specific error and the penetrating error of the construction control network and the operation control network due to subsequent construction damage, but the invention uses the same control network, all control points are the same and have one set of coordinates during tunnel construction and a new set of coordinates after the measurement of the operation control network is completed, and the two sets of coordinates can be compared to easily see the penetrating error of construction and the construction error of corresponding mileage of each control point, thereby checking the quality of construction measurement.

The conventional construction control network is only used for construction lofting before the tunnel is penetrated, subsequent construction is damaged, and a new control network needs to be laid again, so that time is wasted, and investment is additionally increased, taking a 10km tunnel as an example: the two-wire control network with the average side length of 400m needs 50 measuring marks, the unit price of each mark is 200 yuan, 1 ten thousand yuan is required to be invested in total, and if all tunnels constructed in our country are added, a large extra expense is caused.

The conventional method for measuring the CPII requires that after the construction of the ditch cable groove is finished, a forced centering mark is buried in the top surface of the ditch cable groove by drilling. After the embedding strength of the forced centering mark reaches the standard, the CPII can be measured, and after the CPII measurement is finished, the CPII of the track control network can be measured. And after the measurement of the track control network CPIII is finished, a consulting unit is required to evaluate the measurement result, and after the evaluation is qualified, the construction of subsequent projects can be carried out. After the method is used, the CPII of the control network is operated after the tunnel is penetrated, the construction of the ditch cable trough 5 does not influence the measurement of the CPII and the construction period of the later track, and the construction period can be shortened by more than 30 days.

According to the national long-term railway network planning, in the future period, china can build a plurality of railways with huge influence, wherein a plurality of large and large tunnels are arranged. The productivity is improved by depending on the technical progress, and the achievement of the integrated design method of the construction and operation control network in the railway long and large tunnel has the advantages of high economy, reliability, high efficiency and easy operability, and must play a role in the control and measurement of the railway tunnel.

It should be noted that, for simplicity of description, the foregoing embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are presently preferred and that no particular act is required in the present application.

Furthermore, the terms "connected" and "disposed" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "connected" or "provided" may explicitly or implicitly include one or more of that feature. Furthermore, the terms "connected," "disposed," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.

In the above embodiments, the basic principle and the main features of the present invention and the advantages of the present invention are described. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, and that various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the invention, which is to be construed as within the scope of the appended claims.

Claims

1. The utility model provides a construction and operation integration control network in tunnel, its characterized in that has placed a plurality of control network point pairs in tunnel (1) left and right sides equipartition, and the adjacent control network point pair cross arrangement in tunnel (1) left and right sides, the control network point pair includes detachable sign (2, 3), be provided with the construction control network on detachable sign (2, 3), measured data can be as later stage track control network CPIII measured data of starting to calculate.

2. An integrated control network for construction and operation in a tunnel according to claim 1, wherein the distance between the adjacent control network point pairs on the left and right sides of the tunnel (1) is 10m to 20m.

3. The integrated control network for construction and operation in the tunnel according to claim 1, wherein a ditch cable trough (5) is arranged at the bottom of the tunnel (1), and the control network point pair is arranged at a position of 150cm to 180cm above the top surface of the ditch cable trough (5).

4. The integrated control network for construction and operation in tunnels according to claim 1, wherein the linear segment distance of the integrated control network is 350m to 400m.

5. The integrated control network for tunnel construction and operation as claimed in claim 1, wherein the detachable signs (2, 3) each comprise a fixed plate (7) and a movable plate (6), the fixed plate (7) is fixed on the wall surface of the tunnel (1), and the movable plate (6) is detachably arranged on the fixed plate (7) through a connecting bolt (8).

6. An integrated control network for construction and operation in tunnels according to claim 5, characterized in that said movable plate (6) is provided with detachable measuring instruments (9).

7. A construction method of a tunnel construction and operation integrated control network is characterized by comprising the following steps:

s1: arranging a plurality of detachable double-lead point pairs at the left side and the right side of the tunnel (1) at intervals of 10 m-20m in a Z shape;

s2: arranging a construction control network on each control network point pair to complete the measurement of the construction control network, and pulling through the whole tunnel as the measurement of an operation control network after the construction of the tunnel is completed;

s3: and arranging a track control network CPIII on the mark (4), and taking the control network data of S2 as starting data of the CPIII when measuring the CPIII.