CN111241620A - Construction period prediction method and construction method based on tunnel engineering progress slope diagram - Google Patents
Construction period prediction method and construction method based on tunnel engineering progress slope diagram Download PDFInfo
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Abstract
The invention discloses a construction period prediction method and a compiling method based on a tunnel engineering progress slope chart, wherein the tunnel engineering progress slope chart compiled by the method comprises the following steps: in the aspect of tunnel construction period progress calculation, the tunnel engineering progress slope graph can be used for quickly and accurately calculating any working surface and the total construction period and quickly inquiring each time node; on the aspect of construction planning, the resource input condition can be accurately reflected, the logical relationship is clear, the construction personnel can quickly understand the planning intention and the construction key point, and the reasonable allocation of mechanical equipment, materials and personnel is facilitated; in the aspect of schedule management, the actual construction schedule and the schedule are correspondingly represented in the same table, the schedule deviation is inquired in real time, measures are taken in time, and the construction schedule is corrected.
Description
Technical Field
The invention relates to the technical field of tunnel construction progress construction, in particular to a construction period prediction method and a construction method based on a tunnel engineering progress slope diagram.
Background
At present, a crosswalk diagram and a network diagram are two technical means commonly used in project construction progress planning management. The crosswalk diagram comprises the elements of work content, engineering quantity, resource allocation and time crosswalk, and is divided into sequential construction, parallel construction and flow construction, so that the plan arrangement of engineering construction can be comprehensively displayed. However, the crosswalk diagram has limitations, cannot reflect the logical relationship of each engineering project, only can reflect the sequence, cannot reflect the relationship between the construction period and the construction site, cannot reflect the distribution condition of the number of the engineering, cannot find the maneuvering time, and cannot perform optimization comparison. The network diagram planning technology firstly uses a network diagram to express the development sequence of various works in a plan and the relationship among the work, then finds out the key work and key lines in the plan through calculation, thereby seeking the optimal scheme through continuously optimizing the network plan, paying for implementation, and finally carrying out effective control and supervision in the execution process, wherein the network plan is divided into a double-code network plan, a single-code network plan, a double-code time-scale network plan and a single-code overlapping network plan. The network diagram has clear advantages and clear logical relations, can find free time of each work, and can carry out optimization comparison and optimization adjustment by using software. However, the network diagram is poor in intuitiveness, cannot effectively reflect the logical relation of each task from the time position, cannot reflect the whole work resource input condition of the project, is high in compiling and application speciality, and is only suitable for high-level technical and management layer personnel.
In the aspect of the image progress of the tunnel engineering project and the expression of the resource allocation plan, neither the cross-road diagram nor the network diagram is vivid and visual.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a construction period prediction method and a compiling method based on a tunnel engineering progress slope diagram, wherein the compiled tunnel engineering progress slope diagram can accurately calculate the construction period, has good intuition, can better reflect the workload condition of each work in tunnel construction, reflects the overall resource input condition of a project, the logical relationship between the construction period and the construction position, and can also reflect the logical relationship between each process, the construction progress and the like.
A construction period prediction method based on a tunnel engineering progress slope diagram comprises the following steps:
s1, setting a rectangular coordinate system according to the actual date and the tunnel length;
s2, dividing regions according to the corresponding surrounding rock categories on the tunnel;
s3, setting the number of working faces and the tunnel upper area corresponding to each working face according to the working faces divided by tunnel construction;
s4, automatically generating a tunnel project progress slope chart according to the starting time of each working face;
and S5, obtaining the total construction period and the construction period of each working face according to the project progress slope diagram.
Preferably, the step S1 includes: in the rectangular coordinate system, the X axis is set as the actual date, and the Y axis is set as the distance from the opening.
Preferably, the step S2 includes: setting corresponding surrounding rock types on a Y axis; dividing a plurality of areas according to the type of the surrounding rock on the Y axis, wherein the value of the slope of the line segment in the area is the construction efficiency under the corresponding type of the surrounding rock; the construction method comprises the following steps of finishing the engineering quantity of a certain line length in unit time to form a line segment slope, wherein the positive line segment slope represents positive construction, and the negative line segment slope represents reverse construction.
Preferably, the step S3 includes: setting the number of lines and a starting point Y-axis coordinate value and an end point Y-axis coordinate value of each line, wherein each line corresponds to a working surface; and the Y-axis coordinate value of the starting point and the Y-axis coordinate value of the end point of the line respectively represent the starting position and the ending position of the corresponding working surface.
Preferably, the step S4 includes: setting a starting point X-axis coordinate value of each line, and generating a tunnel engineering progress slope chart according to a starting point Y-axis coordinate value, a terminal point Y-axis coordinate value and a line segment slope of each line; and the coordinate value of the starting point X axis and the coordinate value of the end point X axis of the line respectively represent the starting time and the ending time of the corresponding working surface.
Preferably, the step S5 includes: in the tunnel engineering progress slope diagram, the maximum value of the end point X-axis coordinate values of all lines is a total construction period time node, the difference value of the end point X-axis coordinate values and the starting point X-axis coordinate values of the lines is the construction period of the corresponding working face, and the difference value of the maximum value of the end point X-axis coordinate values of all lines and the minimum value of the starting point X-axis coordinate values of all lines is the total construction period.
A method for compiling a tunnel engineering progress slope diagram comprises the following steps:
establishing a rectangular coordinate system, wherein the X axis represents time, and the Y axis represents the length from the opening;
setting corresponding surrounding rock types on a Y axis; dividing a plurality of areas according to the type of the surrounding rock on the Y axis, wherein the value of the slope of the line segment in the area is the construction efficiency under the corresponding type of the surrounding rock; the construction method comprises the following steps of finishing the engineering quantity of a certain line length in unit time to form a line segment slope, wherein a positive line segment slope represents forward construction, and a negative line segment slope represents reverse construction;
setting the number of lines and a starting point Y-axis coordinate value and an end point Y-axis coordinate value of each line, wherein each line corresponds to a working surface; the Y-axis coordinate value of the starting point and the Y-axis coordinate value of the end point of the line respectively represent the starting position and the ending position of the corresponding working surface;
setting a starting point X-axis coordinate value of each line, and generating a tunnel engineering progress slope chart according to a starting point Y-axis coordinate value, a terminal point Y-axis coordinate value and a line segment slope of each line; and the coordinate value of the starting point X axis and the coordinate value of the end point X axis of the line respectively represent the starting time and the ending time of the corresponding working surface.
Preferably, the maximum value of the coordinate values of the X axis of the terminal point of all the lines is the total construction period time node.
Preferably, the difference value between the coordinate value of the end point X-axis and the coordinate value of the starting point X-axis of the line is the construction period of the corresponding working surface.
Preferably, the difference between the maximum value of the end point X-axis coordinate values of all the lines and the minimum value of the start point X-axis coordinate values of all the lines is the total construction period.
Preferably, the maximum value of the start point Y-axis coordinate value or the end point Y-axis coordinate value of all the lines is the total construction length.
Preferably, where there are multiple work tasks, the work surfaces for the different work tasks are represented by lines of different shapes and/or colors.
Preferably, the surrounding rock categories include class II surrounding rock, class III surrounding rock, class IV surrounding rock and class V surrounding rock.
Preferably, when the drilling and blasting method is adopted for construction, the monthly work efficiency of the II-grade surrounding rock is 200 meters per month, the monthly work efficiency of the III-grade surrounding rock is 130 meters per month, the monthly work efficiency of the IV-grade surrounding rock is 90 meters per month, and the monthly work efficiency of the V-grade surrounding rock is 50 meters per month.
Preferably, when the TBM is adopted for construction, the monthly work efficiency of the II-grade surrounding rock is 400 meters per month, the monthly work efficiency of the III-grade surrounding rock is 450 meters per month, the monthly work efficiency of the IV-grade surrounding rock is 400 meters per month, and the monthly work efficiency of the V-grade surrounding rock is 150 meters per month.
Compared with the prior art, the invention has the beneficial effects that:
1. in the aspect of tunnel construction period progress calculation, the tunnel engineering progress slope graph can be used for quickly and accurately calculating any working surface and the total construction period, and quickly inquiring each time node.
2. On the aspect of construction planning, the resource input condition can be accurately reflected, the logical relation is clear, construction personnel can quickly understand planning intention and construction key points, and reasonable allocation of mechanical equipment, materials and personnel is facilitated.
3. In the aspect of schedule management, the actual construction schedule and the schedule are correspondingly represented in the same table, the schedule deviation is inquired in real time, measures are taken in time, and the construction schedule is corrected.
Description of the drawings:
FIG. 1 is a flow chart of the method of the present invention.
FIG. 2 is a schematic cross-sectional view of the three-hole solution of this embodiment.
Fig. 3 is a diagram illustrating a progress slope of the tunnel engineering according to the embodiment.
The labels in the figure are: 1-left hole, 2-middle pilot hole, 3-right hole.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.
The full length of the tunnel is 22.035km, the tunnel is an extra-long expressway tunnel, a three-hole structure with a middle pilot tunnel is arranged between a left main hole and a right main hole, the main hole drilling and blasting method and the middle pilot tunnel TBM tunneling method are adopted for construction, a left transverse channel and a right transverse channel are opened by means of the middle pilot tunnel 2 and the main tunnel, construction of the main hole is assisted by a construction working face, and the construction progress of the tunnel is accelerated. I projects are constructed by tunneling from the exit end of the tunnel to the middle of the tunnel through one end, and the construction section is a left hole ZK86+ 822.5-ZK 97+820 and is 10997.5m long; a right hole YK86+ 882.5-YK 97+860 with the length of 10977.5 m; the right holes of the middle pilot hole are PK75+ 865-PK 97+842, and the length is 21977 m. The main holes (the left hole 1 and the right hole 3) are constructed by adopting a drilling and blasting method, the initial section 200m of the middle pilot hole 2 is constructed by adopting the drilling and blasting method, and the rest parts are constructed by adopting TBM. A cross-traffic tunnel is designed at about 700-800m, and each cross-traffic channel is planned to be used as an auxiliary cross-traffic channel to assist the construction of a main tunnel. A schematic diagram of a three-hole is shown in fig. 2.
As shown in fig. 1, a method for compiling a tunnel engineering progress slope diagram is adopted to compile the tunnel engineering progress slope diagram of the embodiment, and a project duration is predicted by using the tunnel engineering progress slope diagram, which includes the following steps:
establishing a rectangular coordinate system, wherein the X axis represents time in months, the horizontal axis sequentially displays 3-12 months per year, and the zero point of the horizontal axis is set as the planned start date of 2020 and 3 months; the Y axis represents the length from the hole, and the zero point of the longitudinal axis is defined as the footage at the hole position, namely-0 KM in KM unit. Considering that the mileage of the pile numbers of the tunnel left hole 1, the tunnel middle pilot hole 2 and the tunnel right hole 3 in the embodiment is not very different, in order to simplify the progress plan, the progress slope diagram of the tunnel engineering is more visual, assuming that the left hole and the right hole are constructed simultaneously, the left hole is used for representing the whole project construction progress plan, namely, the project construction progress plan has two work tasks (a left hole work task and a middle pilot hole work task), and two lines with different shapes and/or colors are used for representing the work surface of the left hole work task and the work surface of the middle pilot hole work task respectively.
Corresponding surrounding rock categories are arranged on the Y axis and comprise II-level surrounding rock, III-level surrounding rock, IV-level surrounding rock and V-level surrounding rock. Dividing a plurality of areas according to the type of the surrounding rock on the Y axis, wherein the value of the slope of the line segment in the area is the construction efficiency under the corresponding type of the surrounding rock; the construction method comprises the following steps of finishing the engineering quantity of a certain line length in unit time to form a line segment slope, wherein the positive line segment slope represents forward construction, the negative line segment slope represents reverse construction, and the larger the absolute value of the slope is, the higher the efficiency is. When the drilling and blasting method is adopted for construction, the monthly work efficiency of the II-grade surrounding rock is 200 meters per month, the monthly work efficiency of the III-grade surrounding rock is 130 meters per month, the monthly work efficiency of the IV-grade surrounding rock is 90 meters per month, and the monthly work efficiency of the V-grade surrounding rock is 50 meters per month. When TBM is adopted for construction, the monthly work efficiency of the II-grade surrounding rock is 400 meters per month, the monthly work efficiency of the III-grade surrounding rock is 450 meters per month, the monthly work efficiency of the IV-grade surrounding rock is 400 meters per month, and the monthly work efficiency of the V-grade surrounding rock is 150 meters per month.
The tunnel portal is located in a severe cold area, and has the characteristics of severe climate, large temperature difference between day and night and the like, and the average daily temperature is more than 5 degrees from the middle of 4 months to the middle of 10 months every year, so that the effective construction time is only 6 months per year under normal conditions; the construction in winter of 4 months can be realized by arranging heat-insulating and warm-keeping supporting facilities in temporary construction projects such as mixing stations, steel bar processing plants and the like, the effective construction time is prolonged to 10 months from the original effective construction time of 6 months per year, namely, the winter is in 1 or 2 months per year, and 3 to 12 months are effective construction periods. And in construction, 16# -21# and 24# -29# vehicle transverse holes are respectively used as construction transverse holes. Considering that the preparation of the transverse hole construction and the main hole construction is completed within 1 month, a construction team is arranged to carry out the transverse hole construction and the expanding excavation in advance. The main hole carries out parallel line production construction after the transverse passage is opened up, and the working face of the main hole is gradually increased from 2 holes entering the main hole, and 6 holes in the peak period. The construction cross tunnel and the middle pilot tunnel are transversely arranged, the influence of the layout position of the TBM continuous belt conveyor of the middle pilot tunnel and the overall length of the TBM is considered in construction, cold-open type or static blasting construction is used, and in order to guarantee the reasonability of the arrangement period plan, the minimum distance between the position of the working face of the main tunnel and the tail of the TBM machine is 200m through the cross tunnel so as to meet the minimum safety distance of construction. And planning to start the drilling and blasting construction of the main tunnel and the middle pilot tunnel portal section in 3 months in 2020, finishing the external TBM assembling and debugging work before 7 months in 2020, and starting TBM tunneling when the external TBM assembling and debugging work reaches a tunneling starting position. According to the construction work efficiency of surrounding rocks at all levels by the drilling and blasting method, the condition that the drilling and blasting method progress of the pilot tunnel is advanced (the main tunnel and the pilot tunnel are considered to be the same) is not considered for the moment because the 695m surrounding rocks at the tunnel portal section are poor. According to geophysical prospecting display, a fault fracture zone 1 exists around a middle pilot tunnel PK95+400 section corresponding to a left tunnel pile number ZK93+400 section, a rock mass of an F7 fault fracture zone is fractured and cracks develop, the grade of surrounding rock is V grade, and the length is about 160 m. Combining comprehensive factors such as geological conditions of the Tianshan victory tunnel, a construction method and the like, considering the most unfavorable conditions, stopping the TBM, adopting a drilling and blasting method treatment scheme of roundabout pilot tunnels, and considering the TBM according to 6 months through comprehensive indexes of fault fracture zones.
Setting the number of lines, and a starting point Y-axis coordinate value and an end point Y-axis coordinate value of each line on the basis of the consideration, wherein each line corresponds to a working surface; the Y-axis coordinate value of the starting point and the Y-axis coordinate value of the end point of the line respectively represent the starting position and the ending position of the corresponding working surface; and the Y-axis coordinate value of the starting point or the end point of one of the two adjacent lines of the working surface is necessarily equal to the Y-axis coordinate value of the starting point or the end point of the other line, and the two lines represent the through section.
Setting a starting point X-axis coordinate value of each line, and generating a tunnel engineering progress slope chart according to a starting point Y-axis coordinate value, a terminal point Y-axis coordinate value and a line segment slope of each line; and the coordinate value of the starting point X axis and the coordinate value of the end point X axis of the line respectively represent the starting time and the ending time of the corresponding working surface.
The tunnel engineering progress slope diagram generated by the embodiment is shown in fig. 3. And the maximum value of the coordinate values of the X axes of the end points of all the lines is the total construction period time node. And the difference value of the coordinate value of the end point X axis and the coordinate value of the starting point X axis of the line is the construction period of the corresponding working surface. And the difference value between the maximum value of the end X-axis coordinate values of all the lines and the minimum value of the starting X-axis coordinate values of all the lines is the total construction period. And the maximum value of the starting point Y-axis coordinate value or the end point Y-axis coordinate value of all the lines is the total construction length. It can be seen that: according to the current construction schedule, the effective construction time is 55.5 months, and the continuous construction time is 5.5 years; the working surfaces of the main holes are corresponding to the positions of the transverse channels, the working surfaces are sequentially added, the previous working surface is shifted to the next working surface for construction, and the process is analogized in the same way, after 12 months and 1 day in 2021, the main holes enter 6 working surface parallel construction stages, 6 sets of construction mechanical equipment and 6 sets of construction teams need to be equipped for 3 times and 4 times of circulation respectively. Due to the dynamic change of the geological conditions and the comprehensive conditions of the surrounding rocks in the tunnel, the engineering progress slope diagram also needs to be correspondingly dynamically changed, so that the engineering progress plan can timely and accurately react and guide the site construction. The construction schedule can be dynamically adjusted by adjusting the line slope (work efficiency), increasing and decreasing the line number and length (resource allocation) and adjusting the relative transverse position relationship (on-site and off-site time) of the lines, so as to optimize the construction schedule. According to the engineering progress slope diagram, the design and checking calculation of corresponding complex auxiliary measures such as construction electricity utilization, tunnel construction ventilation and the like can be carried out.
The foregoing is merely a detailed description of specific embodiments of the invention and is not intended to limit the invention. Various alterations, modifications and improvements will occur to those skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. A construction period prediction method based on a tunnel engineering progress slope diagram is characterized by comprising the following steps:
s1, setting a rectangular coordinate system according to the actual date and the tunnel length;
s2, dividing regions according to the corresponding surrounding rock categories on the tunnel;
s3, setting the number of working faces and the tunnel upper area corresponding to each working face according to the working faces divided by tunnel construction;
s4, automatically generating a tunnel project progress slope chart according to the starting time of each working face;
and S5, obtaining the total construction period and the construction period of each working face according to the project progress slope diagram.
2. The method for predicting the construction period based on the slope diagram of the tunnel engineering progress as claimed in claim 1, wherein the step S1 includes: in the rectangular coordinate system, the X axis is set as the actual date, and the Y axis is set as the distance from the opening.
3. The method for predicting the construction period based on the slope diagram of the tunnel engineering progress as claimed in claim 2, wherein the step S2 includes: setting corresponding surrounding rock types on a Y axis; dividing a plurality of areas according to the type of the surrounding rock on the Y axis, wherein the value of the slope of the line segment in the area is the construction efficiency under the corresponding type of the surrounding rock; the construction method comprises the following steps of finishing the engineering quantity of a certain line length in unit time to form a line segment slope, wherein the positive line segment slope represents positive construction, and the negative line segment slope represents reverse construction.
4. The method for predicting the construction period based on the slope diagram of the tunnel engineering progress as claimed in claim 3, wherein the step S3 includes: setting the number of lines and a starting point Y-axis coordinate value and an end point Y-axis coordinate value of each line, wherein each line corresponds to a working surface; and the Y-axis coordinate value of the starting point and the Y-axis coordinate value of the end point of the line respectively represent the starting position and the ending position of the corresponding working surface.
5. The method for predicting the construction period based on the slope diagram of the tunnel engineering progress as claimed in claim 4, wherein the step S4 includes: setting a starting point X-axis coordinate value of each line, and generating a tunnel engineering progress slope chart according to a starting point Y-axis coordinate value, a terminal point Y-axis coordinate value and a line segment slope of each line; and the coordinate value of the starting point X axis and the coordinate value of the end point X axis of the line respectively represent the starting time and the ending time of the corresponding working surface.
6. The method for predicting the construction period based on the slope diagram of the tunnel engineering progress as claimed in claim 5, wherein the step S5 includes: in the tunnel engineering progress slope diagram, the maximum value of the end point X-axis coordinate values of all lines is a total construction period time node, the difference value of the end point X-axis coordinate values and the starting point X-axis coordinate values of the lines is the construction period of the corresponding working face, and the difference value of the maximum value of the end point X-axis coordinate values of all lines and the minimum value of the starting point X-axis coordinate values of all lines is the total construction period.
7. A method for compiling a tunnel engineering progress slope diagram is characterized by comprising the following steps:
establishing a rectangular coordinate system, wherein the X axis represents time, and the Y axis represents the length from the opening;
setting corresponding surrounding rock types on a Y axis; dividing a plurality of areas according to the type of the surrounding rock on the Y axis, wherein the value of the slope of the line segment in the area is the construction efficiency under the corresponding type of the surrounding rock; the construction method comprises the following steps of finishing the engineering quantity of a certain line length in unit time to form a line segment slope, wherein a positive line segment slope represents forward construction, and a negative line segment slope represents reverse construction;
setting the number of lines and a starting point Y-axis coordinate value and an end point Y-axis coordinate value of each line, wherein each line corresponds to a working surface; the Y-axis coordinate value of the starting point and the Y-axis coordinate value of the end point of the line respectively represent the starting position and the ending position of the corresponding working surface;
setting a starting point X-axis coordinate value of each line, and generating a tunnel engineering progress slope chart according to a starting point Y-axis coordinate value, a terminal point Y-axis coordinate value and a line segment slope of each line; and the coordinate value of the starting point X axis and the coordinate value of the end point X axis of the line respectively represent the starting time and the ending time of the corresponding working surface.
8. The method for compiling the tunnel engineering progress slope graph according to claim 1, wherein the method comprises the following steps: the maximum value of the end point X-axis coordinate values of all the lines is a total construction period time node; the difference value between the maximum value of the end X-axis coordinate values of all the lines and the minimum value of the starting X-axis coordinate values of all the lines is the total construction period; and the maximum value of the starting point Y-axis coordinate value or the end point Y-axis coordinate value of all the lines is the total construction length.
9. The method for compiling the tunnel engineering progress slope graph according to claim 1, wherein the method comprises the following steps: and the difference value of the coordinate value of the end point X axis and the coordinate value of the starting point X axis of the line is the construction period of the corresponding working surface.
10. The method for compiling the tunnel engineering progress slope graph according to claim 1, wherein the method comprises the following steps: when a plurality of work tasks exist, lines with different shapes and/or colors represent the work surfaces of different work tasks.
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| CN113642852A (en) * | 2021-07-20 | 2021-11-12 | 合肥泰瑞数创科技有限公司 | Road laying cost calculation method and system based on digital twins |
| CN116502834A (en) * | 2023-04-10 | 2023-07-28 | 九河精微塑胶工业(深圳)有限公司 | Workshop intelligent management method and system based on digitization |
| CN116954139A (en) * | 2023-09-21 | 2023-10-27 | 山东锦恒矿业科技有限公司 | Automatic filling data prediction control system for mine |
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| CN117131561B (en) * | 2023-07-31 | 2024-03-15 | 北京梦诚科技有限公司 | CAD drawing and progress chart combined display method and system for invisible and undispersed tunnel |
| CN116954139A (en) * | 2023-09-21 | 2023-10-27 | 山东锦恒矿业科技有限公司 | Automatic filling data prediction control system for mine |
| CN116954139B (en) * | 2023-09-21 | 2023-12-22 | 山东锦恒矿业科技有限公司 | Automatic filling data prediction control system for mine |
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