CN114763983B - Base groove leveling positioning measurement method - Google Patents
Base groove leveling positioning measurement method Download PDFInfo
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- CN114763983B CN114763983B CN202210311506.9A CN202210311506A CN114763983B CN 114763983 B CN114763983 B CN 114763983B CN 202210311506 A CN202210311506 A CN 202210311506A CN 114763983 B CN114763983 B CN 114763983B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/28—Measuring arrangements characterised by the use of mechanical techniques for measuring roughness or irregularity of surfaces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
- G01B5/061—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness height gauges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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- Radar, Positioning & Navigation (AREA)
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a base groove leveling positioning measurement method, which belongs to the technical field of base groove measurement and comprises the following steps: manufacturing and installing a base groove leveling and positioning device; installing a measuring rod; measuring and recording the heights of measuring rods at different measuring nails; processing data, comparing a group of measured data, and judging whether the flatness of the foundation trench at the position meets the design requirement; and moving the foundation groove leveling and positioning device along the wharf direction, and measuring and recording the heights of measuring rods at different sections until the heights of the measuring rods at all sections of the foundation groove are measured. The measuring method for leveling, positioning and measuring the foundation trench has simple measuring steps, can directly measure the flatness of the foundation trench on the shore, reduces the measuring difficulty and improves the measuring efficiency.
Description
Technical Field
The invention relates to the technical field of foundation trench measurement, in particular to a foundation trench leveling positioning measurement method.
Background
The gravity wharf is a harbor building which resists sliding or overturning of the building by means of self gravity, has the characteristics of stable structure, durability and low maintenance cost, and is usually paved by square blocks or caissons; the construction process of a gravity terminal generally includes excavating a foundation trench underwater, and then stone-casting and leveling the foundation trench, wherein the flatness of the foundation trench directly relates to the installation accuracy of a later square or caisson, and relates to the stability of the overall structure of the gravity terminal. In the process of measuring the flatness of an underwater foundation trench, a situation of larger measurement error usually exists; in the area with the water depth of more than 10m or under the condition that the wave height is more than 50cm, the efficiency of underwater measurement by divers is low, and the measurement difficulty is high. Therefore, how to measure the flattened foundation trench and ensure that the flatness of the foundation trench meets the construction requirement is a great technical problem.
Disclosure of Invention
At least one of the purposes of the invention is to provide a base groove leveling and positioning device which can directly measure the flatness of a base groove on the shore, reduce the difficulty and the error of the base groove measurement and improve the measurement efficiency, aiming at solving the problems of the prior art that the base groove measurement is difficult, the measurement efficiency is low and the like.
In order to achieve the above object, the present invention adopts a technical scheme including the following aspects.
A foundation trench leveling positioning measurement method comprises the following steps:
step one: manufacturing and installing a base groove leveling and positioning device; connecting the fixing clamping groove, the second cross rod, the third cross rod, the reinforcing rod, the reference rod, the supporting rod and the fixing rod together; the fixed table is arranged on the bank, and the foundation trench leveling and positioning device is arranged on the fixed table and the bank;
step two: installing a measuring rod; placing the measuring rod under water, enabling the bottom of the measuring rod to be positioned at the top of the base groove, enabling the top of the measuring rod to be intersected with the reference rod, and adjusting the measuring rod to enable the measuring rod to be in a vertical state;
step three: measuring and recording the height of the measuring rod; moving the measuring rod to the first measuring nail, and measuring and recording the height of the measuring rod; moving the measuring rod to the position of the next measuring pin along the length direction of the reference rod, measuring and recording the height of the measuring rod until the heights of the measuring rods at all the measuring pins are measured, wherein the heights of the measuring rods at all the measuring pins are a group of data;
step four: processing the data; comparing the measured data to judge whether the flatness of the foundation trench meets the design requirement;
step five: a mobile foundation trench leveling and positioning device; and (3) moving the base groove leveling and positioning device along the length direction of the bank (6) once at intervals of 3-5 m, and measuring the flatness of other sections of the base groove.
Preferably, in the fourth step, the difference value of the adjacent data of the group is compared with the numerical value in the design range, and whether the flatness of the foundation trench at the position meets the design requirement is judged; if the difference value of the adjacent data is within the design range, the flatness of the base groove meets the design requirement; if the difference value of the adjacent data exceeds the design range, the flatness of the foundation trench at the position does not meet the design requirement.
In the fourth step, when the flatness of the base groove does not meet the design requirement, leveling the base groove at the position, repeatedly measuring data in the same measuring mode as the third step, repeatedly comparing the data, and repeatedly leveling the base groove until the flatness of the base groove at the position meets the design requirement.
Further, in the fifth step, each time the base groove leveling and positioning device is moved, the measured data are compared in the same mode as in the fourth step, and whether the flatness of the base groove meets the design requirement is judged; when the design requirement is not met, leveling the foundation trench at the position, repeatedly measuring and recording data in the same mode as the third step, repeatedly comparing the data, and repeatedly leveling the foundation trench until the flatness of the foundation trench at the position meets the design requirement.
Further, in the fifth step, every time the base groove leveling and positioning device is moved, adjacent groups of data with the flatness of the base groove meeting the requirements are compared, whether the flatness of the base groove at the adjacent section of the length direction of the bank meets the design requirements is judged, when the flatness of the base groove at the adjacent section of the length direction of the bank does not meet the design requirements, leveling processing is carried out on the base groove, the data are repeatedly measured and recorded in the same mode as the third step, the data are repeatedly compared in the same mode as the fourth step, and leveling processing is carried out on the base groove until the flatness of the base groove at the adjacent section of the length direction of the bank meets the design requirements.
In the fifth step, each value in the set of data is differenced with the value in the corresponding position in the adjacent previous set of data, the difference value is compared with the value in the design range, and whether the flatness of the adjacent section of the base groove meets the design requirement is judged.
Preferably, in the first step, a plurality of foundation trench leveling and positioning devices are manufactured, the bottom edge of the fixed table is attached to the edge of the bank, and one side surface of the fixed table and the vertical surface of the bank are located in the same plane; and (3) coating cement mortar at the contact position of the bottom surface of the fixed table and the surface of the bank.
Preferably, in the first step, a leveling rod or a level gauge is adopted to check the levelness of the reference rod, so that the levelness of the reference rod meets the design requirement; fastening the fixing clamping groove on the fixing table and the bank by adopting bolts, and fastening the second cross rod on the horizontal plane of the bank, or arranging concrete blocks on the first cross rod and the second cross rod; and (3) checking the levelness of the reference rod again by adopting a leveling rod or a level gauge, and adjusting the levelness of the base groove leveling and positioning device according to the checking result.
Preferably, in the second step, a leveling rod is arranged at the top of the measuring rod, and the perpendicularity is checked, so that the perpendicularity of the measuring rod meets the design requirement.
Preferably, in the third step, the perpendicularity of the measuring rod is adjusted according to the state of the leveling rod every time the measuring rod is moved.
In summary, due to the adoption of the technical scheme, the invention has at least the following beneficial effects:
1. the fixing clamping groove is arranged on the fixing table, so that the fixing clamping groove and the fixing table can be firmly connected; the reinforcing rods are vertically arranged on the second vertical rods, so that the stability of connection between the fixing clamping grooves and the bank is improved; the measuring nails are arranged on the first measuring rod at intervals of 1-2 m along the length direction of the first measuring rod, so that a plurality of measuring reference points are provided for measuring the base groove, the measuring error of the base groove can be reduced, and the measuring efficiency of the base groove is improved; through set up the bracing piece between first measuring staff and dead lever for bracing piece, first measuring staff, dead lever form the form of triangle support, have strengthened overall structure's stability.
2. The perpendicularity of the measuring rod is adjusted through the state of the leveling rod, so that the measurement error is reduced, and the measurement precision is improved; the measuring rod height at the intersection position of the measuring rod and the measuring nails is measured, measured data are compared, whether the flatness of the base groove meets the design requirement is judged, the measuring difficulty is reduced, and the measuring efficiency is improved.
3. By measuring a set of data every 3-5 m in the dock direction, measurement errors are reduced.
Drawings
Fig. 1 is a perspective view of a base slot leveling and positioning apparatus in accordance with an exemplary embodiment of the present invention.
Fig. 2 is a schematic view of the base slot leveling and positioning apparatus of fig. 1 installed.
Fig. 3 is a schematic view of the fixing slot of fig. 1.
Fig. 4 is a perspective view of another form of a base slot leveling and positioning apparatus.
Fig. 5 is a perspective view of yet another form of a base slot leveling and positioning apparatus.
Fig. 6 is a schematic view of another form of retaining slot.
Fig. 7 is a schematic measurement view of the base slot leveling positioning apparatus of fig. 1.
FIG. 8 is a flow chart of a base slot leveling positioning measurement procedure in accordance with an exemplary embodiment of the present invention.
The marks in the figure are as follows: 1-fixed clamping groove, 101-first cross bar, 102-first vertical bar, 103-second cross bar, 104-second vertical bar, 105-third cross bar, 106-reinforcing bar, 107-corner connector, 108-bolt, 109-connecting rib, 110-mounting hole, 2-reference bar, 200-measuring nail, 3-supporting bar, 4-fixed bar, 5-fixed table, 6-bank, 7-sea level, 8-measuring bar and 9-base groove.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, so that the objects, technical solutions and advantages of the present invention will become more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Fig. 1 illustrates a base slot leveling and positioning apparatus in accordance with an exemplary embodiment of the present invention. It mainly comprises: the fixing clamping groove 1, the reference rod 2 and the supporting structure are arranged in a triangle. The fixing clamping groove 1 comprises a first transverse rod 101, a first vertical rod 102 and a second vertical rod 104; one end of the first cross rod 101 is vertically connected with the first end of the first vertical rod 102, the other end of the first cross rod 101 is vertically connected with the first end of the second vertical rod 104, and the first cross rod 101, the first vertical rod 102 and the second vertical rod 104 are positioned in the same plane; the distance between the first vertical rod 102 and the second vertical rod 104 is the width of the fixing clamping groove 1, and the width of the fixing clamping groove 1 is consistent with the width of the fixing table 5 (refer to fig. 2), so that the fixing clamping groove 1 can be stably fixed on the fixing table 5, and the connection stability of the fixing clamping groove 1 and the fixing table 5 is enhanced; the length of the second vertical rod 104 is greater than that of the first vertical rod 102, when the fixing clamping groove 1 is installed, the first vertical rod 102 and the second vertical rod 104 are respectively fixed on two opposite side surfaces of the fixing table 5, the first transverse rod 101 is fixed on the top surface of the fixing table 5, and the second vertical rod 104 is also fixed on the vertical surface (the surface where the bank contacts sea water) of the bank so as to enhance the stability of the fixing clamping groove 1.
The second end of the first vertical rod 102 is vertically provided with a second cross rod 103, the second cross rod 103 is parallel to the first cross rod 101, the length of the second cross rod 103 is longer than that of the first cross rod 101, and the fixing clamping groove 1 can be fixed on the horizontal plane of the bank 6 by arranging the second cross rod 103, so that the connection stability of the fixing clamping groove 1 and the bank 6 is enhanced; the length of the first vertical rod 102 is consistent with the height of the fixed platform 5 (as shown in fig. 2), when the fixed clamping groove 1 is installed on the fixed platform 5, the first transverse rod 101 can be attached to the top surface of the fixed platform 5, the second transverse rod 103 can be attached to the horizontal plane of the bank 6, and the stability of the installation of the fixed clamping groove 1 can be enhanced.
The second vertical rod 104 is provided with the reinforcing rod 106 perpendicular to the second vertical rod 104, the reinforcing rod 106 is arranged in the middle of the second vertical rod 104, and when the fixing clamping groove 1 is arranged on the fixing table 5, the reinforcing rod 106 is fixed on the vertical surface of the bank 6, so that the stability of the fixing clamping groove 1 is enhanced. A third cross rod 105 for installing the reference rod 2 is vertically arranged at the second end of the second vertical rod 104, the third cross rod 105 enhances the stability of the connection between the reference rod 2 and the fixed clamping groove 1, and the third cross rod 105 is parallel to the first cross rod 101; the first end of the reference rod 2 is horizontally arranged on the third cross bar 105 and is parallel to the third cross bar 105, when the measuring and positioning device is arranged on the fixed table 5 (refer to fig. 2), the reference rod 2 is parallel to the sea level 7, the reference rod 2 provides a measuring reference for measuring the flatness of the foundation trench, and the difficulty of measuring the foundation trench in the later stage is reduced; the length of the reference rod 2 is not less than 6m, and in practical application, the length of the reference rod 2 can be adjusted according to the designed length.
A plurality of (not less than 3) measuring nails 200 are arranged on the reference rod 2 along the length direction, the measuring nails 200 are welded on the reference rod 2 by bolts or steel bars with the diameter of 10-20 mm, and the interval between the adjacent measuring nails 200 is 1-2 m; when the flatness of the foundation trench is measured by adopting the reference rod 2, the measuring nails 200 provide reference positions for measuring the foundation trench, the measuring efficiency of the flatness of the underwater foundation trench is improved, the heights of the measuring rods are measured at the positions of the measuring nails 200, and the flatness of the foundation trench can be measured by comparing the measured data.
The third horizontal pole 105 is provided with angle sign indicating number connecting piece 107 with the hookup location department of second montant 104, angle sign indicating number connecting piece 107 has increased the stability that third horizontal pole 105 and second montant 104 are connected, be provided with bolt 108 (refer to fig. 1, fig. 3) on the angle sign indicating number connecting piece 107, third horizontal pole 105 passes through bolt 108 with second montant 104 to be connected (third horizontal pole 105 can also directly with second montant 104 welding), after the foundation trench leveling positioner has used, can demolish third horizontal pole 105 and reference pole 2, make foundation trench leveling positioner's storage and transportation more convenient, when the levelness of reference pole 2 does not satisfy the design requirement, still can change reference pole 2, save the material of preparation foundation trench leveling positioner.
The supporting structure comprises a supporting rod 3 and a fixing rod 4, wherein the first end of the fixing rod 4 is arranged on the first vertical rod 102 in parallel, the end part of the fixing rod 4 is positioned on the surface of the second transverse rod 103, the second end of the fixing rod 4 is connected with one end of the supporting rod 3, the other end of the supporting rod 3 is connected with the second end of the reference rod 2, the included angle between the supporting rod 3 and the reference rod 2 is 30-60 degrees, and the lengths of the supporting rod 3 and the fixing rod 4 can be adjusted according to the designed length; through setting up bearing structure, can strengthen foundation ditch flattening positioner's overall stability, prevent that reference rod 2 from influencing measuring accuracy because of warping in the foundation ditch measurement process, increased measuring accuracy.
The reference rod 2, the support rod 3 and the fixed rod 4 are made of steel pipes with the outer diameter of 20-60 mm and the wall thickness of 3-5 mm, or can be made of angle steel, channel steel and other steel materials, when the reference rod 2, the support rod 3 and the fixed rod 4 are made of steel pipes, the support rod 3 is connected with the reference rod 2 and the support rod 3 is connected with the fixed rod 4 through fasteners (not shown in the figure) so as to enhance the stability of connection; when other steels are adopted, the supporting rod 3 and the reference rod 2, and the supporting rod 3 and the fixed rod 4 can be connected in a welding mode, a bolt connection mode or a binding mode. The first cross bar 101, the first vertical bar 102, the second vertical bar 104, the second cross bar 103 and the third cross bar 105 adopt channel steel (angle steel or flat steel can also be adopted), the first cross bar 101 is connected with the first vertical bar 102, the first cross bar 101 is connected with the second vertical bar 104, the first vertical bar 102 is connected with the second cross bar 103 in a welding mode, and the third cross bar 105 is welded with the reference bar 2, so that the stability of connection is enhanced. The reinforcing rod 106 is made of channel steel, angle steel or flat steel, and the reinforcing rod 106 is welded with the second vertical rod 104; the connection position of the first cross bar 101, the first vertical bar 102 and the second vertical bar 104 is further provided with an inverted U-shaped connection rib 109 (refer to fig. 1 and 3) to enhance the stability of the structure of the fixing clip groove 1, the connection rib 109 is made of steel bars, and the connection rib 109 can also be made of steel plates.
When the reference rod 2 and the fixing rod 4 adopt steel pipes, and the third transverse rod 105 and the first vertical rod 102 adopt channel steel, the outer diameter of the steel pipes is not larger than the width of the notch of the channel steel, so that the reference rod 2 can be stably installed in the notch of the third transverse rod 105, and the fixing rod 4 is stably installed in the notch of the first vertical rod 102.
The third cross bar 105 may also be steel (as shown in fig. 4); when the third cross bar 105 adopts the steel pipe, the first end of the reference bar 2 can be directly arranged in the third cross bar 105, and when the flatness of the reference bar 2 does not meet the requirement, the reference bar 2 is very convenient to replace. The bottom surface of the third cross bar 105 may also be in a semicircular structure (as shown in fig. 5), when the reference bar 2 adopts a steel pipe, the first end of the reference bar 2 may be tightly attached to the third cross bar 105, so as to increase the stability of connection between the reference bar 2 and the third cross bar 105.
As shown in fig. 6, a plurality of mounting holes 110 may be formed in the first cross bar 101, the second vertical bar 104, the second cross bar 103 and the reinforcing bar 106 along the length direction, and when the foundation trench leveling and positioning device of the present invention is mounted on the fixed table 5 and the dyke 6, the fixing clamping trench 1 may be mounted on the fixed table 5 and the dyke 6 by using the through-wall bolts matched with the mounting holes 110, the reinforcing bar 106 may be mounted on the vertical plane of the dyke 6, and the second cross bar 103 may be mounted on the horizontal plane of the dyke 6, so as to further enhance the mounting stability of the foundation trench leveling and positioning device of the present invention.
As shown in fig. 2, a fixing clamping groove 1 of the positioning device is arranged on a bank 6, the fixing clamping groove 1 clamps a fixing table 5, a reinforcing rod 106 is attached to the vertical surface of the bank 6, and a second cross rod 103 is attached to the horizontal surface of the bank 6; the fixed station 5 is of a cuboid structure (can also be of a cube structure), and is made of concrete, the fixed station 5 is arranged on the bank 6, and the bottom edge of the fixed station 5 is attached to the edge of the bank 6, so that one side surface of the fixed station 5 and the vertical surface of the bank 6 are in the same plane, the stability of the fixing clamping groove 1 on the bank 6 is ensured, the levelness of the reference rod 2 is ensured, the measuring error is reduced, and the measuring precision is increased. After the positioning device is arranged on the bank 6, the distance between the reference rod 2 and the sea level 7 is 0.2-1 m, so that the reference rod 2 is higher than the sea level 7, the levelness of the reference rod 2 can be conveniently observed and adjusted, and the measuring difficulty and measuring error are reduced. When the length of the reference rod 2 is too long (more than 10 m), in order to ensure the levelness of the reference rod 2, a tensioning rope (not shown in the figure) can be arranged on the reference rod 2, one end of the tensioning rope is arranged at the far end (the end far away from the bank 6) of the reference rod 2, and the other end of the tensioning rope is arranged on the fixed rod 4, so that the levelness of the reference rod 2 meets the design requirement by adjusting the tensioning rope; in order to ensure that the levelness of the reference rod 2 meets construction requirements, a leveling rod can be further arranged on the reference rod 2, and the levelness of the reference rod 2 meets construction requirements by observing the leveling rod and adjusting the tensioning rope, so that measurement errors of flatness of a base groove are reduced. The foundation trench leveling and positioning device can directly measure the flatness of the foundation trench on the shore, reduces the difficulty and measurement error of underwater measurement of divers, and improves the measurement efficiency.
As shown in fig. 8, the invention provides a measuring method for leveling and positioning a foundation trench, which comprises the following steps:
step one: manufacturing and installing a foundation trench leveling and positioning device, connecting a fixed clamping trench 1, a second cross bar 103, a third cross bar 105, a reinforcing bar 106, a reference bar 2, a supporting bar 3 and a fixed bar 4 together, wherein the length of the reference bar 2 is not less than 6m, a measuring nail 200 is arranged on the reference bar 2 at intervals of 1-2 m along the length direction, the measuring nail 200 provides a reference for measuring bar movement in the foundation trench measuring process, the difficulty of repeatedly measuring the moving distance of the measuring bar in the measuring bar moving process is reduced, and the measuring efficiency is improved; according to the actual condition of the construction site, a plurality of (not less than 2) foundation trench leveling and positioning devices can be prefabricated, and can be replaced when the foundation trench leveling and positioning devices are damaged in the use process.
After the foundation trench leveling and positioning device is manufactured, the fixed table 5 is arranged on the bank 6; the fixed table 5 is of a cuboid or square structure, the fixed table 5 is made of concrete, the width of the fixed table 5 is consistent with the width of the fixed clamping groove 1, and the height of the fixed table 5 is consistent with the length of the first vertical rod 102, so that the fixed clamping groove 1 can be stably clamped on the fixed table 5; the bottom edge of the fixed table 5 is attached to the edge of the bank 6, so that one side surface of the fixed table 5 and the vertical surface of the bank 6 are positioned in the same plane, and the stability of the installation of the later-stage foundation trench leveling and positioning device is improved; in the process of installing the fixed table 5, cement mortar can be smeared at the contact position of the bottom surface of the fixed table 5 and the surface of the bank 6, so as to enhance the stability of the fixed table 5 installed on the bank 6.
After the fixing table 5 is installed, checking the levelness of the reference rod 2 by adopting a leveling rod or a level gauge, checking whether the levelness of the reference rod 2 meets the design requirement, and when the levelness of the reference rod 2 does not meet the design requirement, replacing the reference rod 2 or replacing a base groove leveling and positioning device, and checking the levelness of the reference rod 2 again until the design requirement is met; clamping a fixed clamping groove 1 of the foundation groove leveling and positioning device on a fixed table 5, enabling a first transverse rod 101 to be attached to the top surface of the fixed table 5, enabling a first vertical rod 102 and a second vertical rod 104 to be attached to two opposite side surfaces of the fixed table 5 respectively, enabling the second vertical rod 104 to be attached to the vertical surface of a bank 6, enabling a reinforcing rod 106 to be attached to the vertical surface of the bank 6, and enabling a second transverse rod 103 to be attached to the horizontal surface of the bank 6; after the fixed clamping groove 1 is clamped on the fixed table 5, the fixed clamping groove 1 is fastened on the fixed table 5 and the bank 6 by bolts, and the second cross bar 103 is fastened on the horizontal plane of the bank 6; or concrete blocks are arranged on the first cross bar 101 and the second cross bar 103 so as to increase the stability of the installation of the fixing clip groove 1.
After the foundation trench leveling and positioning device is installed on the bank 6, the reference rod 2 is higher than the sea level 7, and the height difference between the reference rod and the sea level 7 is 0.2-1 m; and checking the levelness of the reference rod 2 by adopting a leveling rod or a level gauge, and adjusting the tensioning rope of the foundation trench leveling and positioning device according to the checking result when the levelness of the reference rod 2 does not meet the requirement, so that the levelness of the reference rod 2 meets the design requirement.
Step two: the measuring rod is installed, a leveling rod is arranged at the top of the measuring rod 8, and the perpendicularity of the measuring rod 8 is checked, so that the perpendicularity of the measuring rod 8 meets the design requirement, and the measuring rod 8 can be made of steel pipes, angle steel or battens; after the setting of the leveling rod is completed, the measuring rod 8 is placed under water, the bottom of the measuring rod 8 is positioned at the top of the foundation groove 9, the top of the measuring rod 8 is leaned against the reference rod 2, the measuring rod 8 is intersected with the reference rod 2, the diver is launched to adjust the position of the measuring rod 8 according to the state of the leveling rod, the measuring rod 8 is in a vertical state (shown in fig. 7), a plurality of measuring rods 8 with equal lengths can be combined together according to the water depth condition, and the combined measuring rod 8 is placed under water; after the measuring rod 8 is placed under water, the actual height of the measuring rod 8 is 1-2 m higher than the sea level, so that the position of the measuring rod 8 can be clearly observed by a person on shore, and the measuring error is reduced.
Step three: measuring and recording the height of the measuring rod, moving the measuring rod 8 to a first measuring nail 200 (the measuring nail can be used for measuring the measuring nail of one end of the reference rod 2 close to the bank 6 or the measuring nail of one end of the reference rod 2 far away from the bank 6), adjusting the measuring rod 8 to ensure the verticality of the measuring rod 8, and measuring and recording the height of the measuring rod 8 when the measuring rod 8 is in a vertical state; after the recording is completed, the measuring rod 8 is moved to the position of the next measuring pin 200 along the length direction of the reference rod 2, the verticality of the measuring rod 8 is adjusted, and the height of the measuring rod 8 is measured and recorded; after the recording is completed, the measuring rod 8 is moved to the position of the rear measuring pin 200 along the length direction of the reference rod 2 in the same way, the verticality of the measuring rod 8 is adjusted, the height of the measuring rod 8 is measured and recorded until the heights of the measuring rods 8 at all the measuring pins 200 are measured, and the heights of the measuring rods 8 measured at all the measuring pins 200 are a group of data.
Step four: processing data, comparing a group of measured data, and judging whether the flatness of the foundation trench at the position meets the design requirement; if the difference value of the adjacent data is within the design range, the flatness of the base groove meets the design requirement; if the difference value of the adjacent data exceeds the design range, the flatness of the foundation trench at the position does not meet the design requirement, leveling treatment is carried out on the foundation trench at the position, the data measurement is repeatedly carried out in the same measurement mode as the third step after the treatment is finished, the measured data are repeatedly compared, and leveling treatment is repeatedly carried out on the foundation trench until the flatness of the foundation trench at the position meets the design requirement.
Step five: and (3) moving the base groove leveling and positioning device, moving the base groove leveling and positioning device along the length direction of the bank 6 once every 3-5 m, and measuring the flatness of other sections of the base groove. And (3) measuring and recording the next group of data by adopting the measuring mode which is the same as the third step, comparing the measured data by adopting the mode which is the same as the fourth step, and judging whether the flatness of the foundation groove meets the design requirement. When the design requirement is not met, leveling the foundation trench at the position, and repeating the third and fourth steps until the flatness of the foundation trench at the position meets the design requirement; when the flatness of the foundation trench meets the design requirement, comparing a group of data with the flatness meeting the design requirement with the adjacent previous group of data, differencing each numerical value in the group of data with the numerical value of the corresponding position in the adjacent previous group of data, comparing the difference value with the numerical value in the design range, further judging whether the flatness of the foundation trench at the adjacent section of the bank 6 in the length direction meets the design requirement, when the flatness does not meet the design requirement, leveling the foundation trench, and repeatedly measuring and comparing the data after leveling is finished until the flatness of the foundation trench at the adjacent section of the bank 6 in the length direction meets the design requirement.
The foregoing is a detailed description of specific embodiments of the invention and is not intended to be limiting of the invention. Various alternatives, modifications and improvements will readily occur to those skilled in the relevant art without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a foundation ditch leveling positioning measurement method which is characterized in that adopts foundation ditch leveling positioner to measure, foundation ditch leveling positioner include: the fixing clamping groove (1), the reference rod (2) and the supporting structure are arranged in a triangle; the fixing clamping groove (1) comprises a first transverse rod (101), a first vertical rod (102) and a second vertical rod (104); one end of the first cross rod (101) is vertically connected with the first end of the first vertical rod (102), the other end of the first cross rod (101) is vertically connected with the first end of the second vertical rod (104), and the first cross rod (101), the first vertical rod (102) and the second vertical rod (104) are positioned in the same plane; the distance between the first vertical rod (102) and the second vertical rod (104) is the width of the fixing clamping groove (1), and the width of the fixing clamping groove (1) is consistent with the width of the fixing table (5); the length of the second vertical rod (104) is larger than that of the first vertical rod (102), the first vertical rod (102) and the second vertical rod (104) are respectively fixed on two opposite side surfaces of the fixed table (5), the first transverse rod (101) is fixed on the top surface of the fixed table (5), and the second vertical rod (104) is also fixed on the vertical surface of the bank (6);
a second cross rod (103) is vertically arranged at the second end of the first vertical rod (102), the second cross rod (103) is parallel to the first cross rod (101), and the length of the second cross rod (103) is greater than that of the first cross rod (101); the length of the first vertical rod (102) is consistent with the height of the fixed table (5);
a reinforcing rod (106) perpendicular to the second vertical rod (104) is arranged on the second vertical rod (104), and the reinforcing rod (106) is arranged in the middle of the second vertical rod (104); a third cross rod (105) for installing the reference rod (2) is vertically arranged at the second end of the second vertical rod (104), and the third cross rod (105) is parallel to the first cross rod (101); the first end of the reference rod (2) is horizontally arranged on the third cross rod (105) and is parallel to the third cross rod (105);
the supporting structure comprises a supporting rod (3) and a fixing rod (4), wherein the first end of the fixing rod (4) is arranged on the first vertical rod (102) in parallel, the second end of the fixing rod (4) is connected with one end of the supporting rod (3), and the other end of the supporting rod (3) is connected with the second end of the reference rod (2);
the foundation trench leveling positioning measurement method comprises the following steps: step one: manufacturing and installing a base groove leveling and positioning device; the fixing clamping groove (1), the second cross rod (103), the third cross rod (105), the reinforcing rod (106), the reference rod (2), the support rod (3) and the fixing rod (4) are connected together; the fixed table (5) is arranged on the bank (6), and the foundation trench leveling and positioning device is arranged on the fixed table (5) and the bank (6);
step two: installing a measuring rod; placing the measuring rod (8) under water, enabling the bottom of the measuring rod (8) to be positioned at the top of the base groove (9), enabling the top of the measuring rod (8) to be intersected with the reference rod (2), and adjusting the measuring rod (8) to enable the measuring rod (8) to be in a vertical state;
step three: measuring and recording the height of the measuring rod; moving the measuring rod (8) to the position of the first measuring nail (200), and measuring and recording the height of the measuring rod (8); moving the measuring rod (8) to the position of the next measuring pin (200) along the length direction of the reference rod (2), measuring and recording the height of the measuring rod (8) until the heights of the measuring rods (8) at all the measuring pins (200) are measured, wherein the heights of the measuring rods (8) at all the measuring pins (200) are a group of data;
step four: processing the data; comparing the measured data to judge whether the flatness of the foundation trench meets the design requirement;
step five: a mobile foundation trench leveling and positioning device; and (3) moving the base groove leveling and positioning device along the length direction of the bank (6) at intervals of 3-5 m, and measuring the flatness of other sections of the base groove.
2. The method for leveling, positioning and measuring a foundation trench according to claim 1, wherein in the fourth step, the difference value of the adjacent data of the group is compared with the numerical value in the design range, and whether the flatness of the foundation trench meets the design requirement is judged; if the difference value of the adjacent data is within the design range, the flatness of the base groove meets the design requirement; if the difference value of the adjacent data exceeds the design range, the flatness of the foundation trench at the position does not meet the design requirement.
3. The method for leveling, positioning and measuring the foundation trench according to claim 1, wherein in the fourth step, when the flatness of the foundation trench does not meet the design requirement, leveling the foundation trench at the location, repeating the measurement of the data by adopting the measurement mode same as that of the third step, repeating the comparison of the data, and repeating the leveling of the foundation trench until the flatness of the foundation trench at the location meets the design requirement.
4. The method for leveling, positioning and measuring a foundation trench according to claim 1, wherein in the fifth step, the flatness of the foundation trench is measured in the same manner as in the third step and the measured data is compared in the same manner as in the fourth step, so as to determine whether the flatness of the foundation trench meets the design requirement; when the design requirement is not met, leveling the foundation trench at the position, repeatedly measuring and recording data in the same mode as the third step, repeatedly comparing the data, and repeatedly leveling the foundation trench until the flatness of the foundation trench at the position meets the design requirement.
5. The method for leveling, positioning and measuring the foundation trench according to claim 1, wherein in the fifth step, each time the foundation trench leveling and positioning device is moved, adjacent groups of data with the flatness of the foundation trench meeting the requirement are compared, whether the flatness of the foundation trench at the adjacent sections in the length direction of the bank (6) meets the design requirement is judged, when the flatness of the foundation trench does not meet the design requirement, the foundation trench is leveled, the data is repeatedly measured and recorded in the same manner as in the third step, the data is repeatedly compared in the same manner as in the fourth step, and the leveling of the foundation trench is repeatedly performed until the flatness of the foundation trench at the adjacent sections in the length direction of the bank (6) meets the design requirement.
6. The method according to claim 5, wherein in the fifth step, each value in the set of data is differenced from a value in a corresponding position in an adjacent previous set of data, and the difference is compared with a value in a design range to determine whether the flatness of the adjacent sections of the foundation pit meets the design requirement.
7. The method for leveling, positioning and measuring the foundation trench according to claim 1, wherein in the first step, a plurality of foundation trench leveling and positioning devices are manufactured, the bottom edge of the fixed table (5) is attached to the edge of the bank (6), and one side surface of the fixed table (5) is positioned in the same plane with the vertical surface of the bank (6); and (3) coating cement mortar at the contact position of the bottom surface of the fixed table (5) and the surface of the bank (6).
8. The method for leveling, positioning and measuring the foundation trench according to claim 1, wherein in the first step, a leveling rod or a level gauge is adopted to check the levelness of the reference rod (2) so that the levelness of the reference rod (2) meets the design requirement; fastening the fixing clamping groove (1) on the fixing table (5) and the bank (6) by bolts, fastening the second cross rod (103) on the horizontal plane of the bank (6), or arranging concrete blocks on the first cross rod (101) and the second cross rod (103); and (3) checking the levelness of the reference rod (2) again by adopting a leveling rod or a level gauge, and adjusting the levelness of the foundation trench leveling and positioning device according to the checking result.
9. The method for leveling, positioning and measuring the foundation trench according to claim 1, wherein in the second step, a leveling rod is arranged at the top of the measuring rod (8), and the verticality is checked, so that the verticality of the measuring rod (8) meets the design requirement.
10. The method for positioning and leveling a foundation trench according to any one of claims 1 to 9, wherein in the third step, the perpendicularity of the measuring rod (8) is adjusted according to the state of the leveling rod every time the measuring rod (8) is moved.
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