A deviation correction device for casing in underwater static penetration testing

Abstract

The invention discloses a deviation correction device for a casing of an above-water static penetration sounding construction, comprising a deviation correction frame, a hydraulic workstation, a left and right push-pull oil cylinder, a front and rear push-pull oil cylinder, a left and right moving slide, a front and rear moving slide and a static penetration sounding casing seat. The invention adopts a static penetration sounding casing seat arranged on the deviation correction frame, and the static penetration sounding casing seat moves in a plane in the left and right moving slide and the front and rear moving slide of the deviation correction frame under the control of the left and right push-pull oil cylinder and the front and rear push-pull oil cylinder. When working, the deviation correction frame is arranged on the top of the above-water static penetration sounding platform, and the top end of the overhead section casing is arranged in the casing hole of the static penetration sounding casing seat. The static penetration sounding casing seat is driven by the hydraulic workstation, the left and right push-pull oil cylinder and the front and rear push-pull oil cylinder to control the verticality of the overhead section casing and achieve the purpose of deviation correction. The invention has a simple structure and a significant deviation correction effect, which not only ensures the accuracy of the survey data, accelerates the construction progress and improves the work efficiency, but also prolongs the service life of the casing.

Description

Technical Field

[0001] The invention relates to static penetration testing construction in the technical field of water exploration, in particular to a deviation correction device for a casing of static penetration testing construction on water. Background Art

[0002] With the vigorous development of engineering construction in my country, more and more projects involve rivers, rivers and sea areas, and the amount of related geotechnical engineering exploration is getting larger and larger, and the difficulty is getting higher and higher. For rivers, rivers and sea areas with complex strata and where it is not easy to take original soil samples, it is particularly important to ensure the smooth development of water area surveys, shorten the survey time, ensure the accuracy of survey data and ensure construction safety. Static penetration tests are widely used both on land and in water due to their unique advantages. In the process of static penetration tests on water, the existing technology often causes the overhead section casing to be affected by various external forces such as wind, waves, tides, surges, and water flow, and is prone to tilt, which seriously affects the accuracy of the survey data and the progress of construction. For this reason, a set of casing correction devices is designed to correct the phenomenon of the overhead section casing being offset during construction, so as to ensure the smooth progress of the static penetration test on water. Summary of the invention

[0003] The purpose of the present invention is to provide a correction device for casing of underwater static penetration construction in view of the deficiencies of the prior art. The present invention adopts a static penetration casing seat arranged on a correction frame. The static penetration casing seat moves in a plane in the left and right moving slides and the front and back moving slides of the correction frame under the control of the left and right push-pull cylinders and the front and back push-pull cylinders. When working, the correction frame is set on the top of the underwater static penetration platform, and the top of the overhead section casing is set in the casing hole of the static penetration casing seat. The static penetration casing seat is driven by the hydraulic workstation, the left and right push-pull cylinders and the front and back push-pull cylinders to control the verticality of the overhead section casing, so as to achieve the purpose of correcting the overhead section casing. The present invention has a simple structure and a significant correction effect. It not only ensures the accuracy of the survey data, speeds up the construction progress and improves the work efficiency, but also saves costs, reduces the damage rate of the casing and prolongs the service life of the casing.

[0004] The specific technical solution for achieving the purpose of the present invention is:

[0005] A deviation correction device for a casing in an underwater static penetration test, which features a deviation correction frame, a hydraulic workstation, left and right push-pull cylinders, front and rear push-pull cylinders, left and right moving slides, front and rear moving slides and a static penetration test casing seat;

[0006] The deflection correction frame is a rectangular frame with columns at four corners, cross bars at four sides of the frame, and the cross bars are connected with the columns to form a front side plate, a rear side plate, a left side plate and a right side plate, wherein the left side plate is provided with a first oil cylinder seat, and the front side plate is provided with a second oil cylinder seat;

[0007] The left and right movable slides are a pair and are symmetrically arranged on the front side plate and the rear side plate of the deviation correction frame;

[0008] The front and rear moving slides are a pair, and the front and rear moving slides are arranged to slide inside the left and right moving slides;

[0009] The left and right push-pull oil cylinders are arranged on the first oil cylinder seat of the left side plate, and the piston rod ends of the left and right push-pull oil cylinders are connected to the front and rear moving slide grooves;

[0010] The static probe sleeve seat is arranged to slide in the forward and backward moving slide groove;

[0011] The front and rear push-pull oil cylinders are arranged on the second oil cylinder seat of the front side plate, and the piston rod ends of the front and rear push-pull oil cylinders are connected to the static probe sleeve seat;

[0012] The static probe casing seat is in the shape of a rectangular plate, and a casing hole is provided in the center of the plate surface;

[0013] The hydraulic workstation is respectively connected to the left and right push-pull cylinders and the front and rear push-pull cylinders via oil circuits.

[0014] The technical effects produced by the present invention are:

[0015] The present invention installs a correction frame on the top of the water static exploration platform in the prior art, and sets the top end of the overhead section casing in the casing hole of the static exploration casing seat in the correction frame. The static exploration casing seat is driven to move in the correction frame through a hydraulic workstation, left and right push-pull cylinders, and front and rear push-pull cylinders to control the verticality of the overhead section casing, thereby achieving the purpose of randomly correcting the deviation of the overhead section casing, and the correction effect is remarkable.

[0016] The present invention uses a total station to monitor the verticality of the overhead section casing, and transmits the offset of the overhead section casing to the control system of the hydraulic workstation. The control system issues instructions to drive the displacement of the left and right push-pull cylinders or the front and rear push-pull cylinders respectively, so that the static probe casing seat moves in the plane within the left and right moving slide grooves and the front and rear moving slide grooves of the correction frame, thereby realizing random and accurate verticality correction of the overhead section casing.

[0017] The vertical deviation of the overhead section casing not only affects the accuracy of the survey data, but also poses a great safety hazard in construction. During the survey, pressure must be applied to the top of the overhead section casing. When the overhead section casing deviates, additional bending moment will be generated in the overhead section casing under the action of pressure. When the bending moment is too large, the overhead section casing will become unstable, leading to accidents. The present invention can ensure that the casing is not affected by factors such as wind, waves, and water flow, and always maintains verticality, effectively preventing the occurrence of the above phenomenon and ensuring production safety.

[0018] The invention has a simple structure and is quick to install, which not only ensures the accuracy of survey data, accelerates construction progress and improves work efficiency, but also saves costs, reduces the damage rate of the casing and prolongs the service life of the casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a schematic plan view of the translation of the static probe casing seat of the present invention;

[0021] Figure 3 It is a schematic diagram of the use state of the present invention. DETAILED DESCRIPTION

[0022] See also Figure 1 , Figure 2 The present invention comprises a deviation correction frame 1, a hydraulic workstation 2, left and right push-pull cylinders 3, front and rear push-pull cylinders 4, left and right moving slides 5, front and rear moving slides 6 and a static probe casing seat 7.

[0023] See also Figure 1 , Figure 2 The deflection correction frame 1 is a rectangular frame with columns 11 at four corners, cross bars are provided on four sides of the frame, and the cross bars are connected with the columns 11 to form a front side plate 12, a rear side plate 13, a left side plate 14 and a right side plate 15, wherein a first cylinder seat 141 is provided on the left side plate 14, and a second cylinder seat 121 is provided on the front side plate 12;

[0024] The left and right movable slide grooves 5 are a pair and are symmetrically arranged on the front side plate 12 and the rear side plate 13 of the deviation correction frame 1.

[0025] See also Figure 1 , Figure 2 The front and rear moving slide grooves 6 are a pair, and the front and rear moving slide grooves 6 are arranged to slide in the left and right moving slide grooves 5;

[0026] The left and right push-pull cylinders 3 are arranged on the first cylinder seat 141 of the left side plate 14, and the piston rod ends of the left and right push-pull cylinders 3 are connected to the front-rear moving slide grooves 6;

[0027] The static probe casing seat 7 is arranged to slide in the forward and backward moving slide groove 6;

[0028] The front and rear push-pull cylinder 4 is arranged on the second cylinder seat 121 of the front side plate 12, and the piston rod end of the front and rear push-pull cylinder 4 is connected to the static probe sleeve seat 7;

[0029] The static probe casing seat 7 is in the shape of a rectangular plate, and a casing hole 71 is provided in the center of the plate surface;

[0030] The hydraulic workstation 2 is connected to the left and right push-pull cylinders 3 and the front and rear push-pull cylinders 4 through oil circuits.

[0031] The present invention works like this:

[0032] See also Figure 1 , Figure 2 , Figure 3 First, install the correction frame 1 on the top of the water static exploration platform through the columns 11 on the four corners, and pass the top of the overhead section casing 8 into the casing hole 71 of the static exploration casing seat 7; connect the hydraulic workstation 2 to the left and right push-pull cylinders 3 and the front and rear push-pull cylinders 4 through pipelines. During operation, use a total station to monitor the verticality of the overhead section casing 8, and transmit the offset of the overhead section casing 8 to the control system of the hydraulic workstation 2. The hydraulic workstation 2 drives the left and right push-pull cylinders 3 or the front and rear push-pull cylinders 4 respectively, so that the static exploration casing seat 7 moves in the plane in the left and right moving slide grooves 5 and the front and rear moving slide grooves 6 of the correction frame 1 to control the verticality of the overhead section casing 8 and achieve the purpose of correcting the offset of the overhead section casing 8.

[0033] The invention has a simple structure and a significant correction effect, which not only ensures the accuracy of survey data, accelerates construction progress and improves work efficiency, but also saves costs, reduces the damage rate of the casing and prolongs the service life of the casing.

[0034] The above is only a further explanation of the present invention and is not intended to limit this patent. Any equivalent implementation of the present invention should be included in the scope of the claims of this patent.

Claims

1. A deviation correction device for a casing used in underwater static penetration testing, characterized in that: It comprises a deviation correction frame (1), a hydraulic workstation (2), left and right push-pull cylinders (3), front and rear push-pull cylinders (4), left and right moving slides (5), front and rear moving slides (6) and a static probe casing seat (7); The deflection correction frame (1) is a rectangular frame with columns (11) at four corners, cross bars are provided at four sides of the frame, and the cross bars are connected with the columns (11) to form a front side plate (12), a rear side plate (13), a left side plate (14) and a right side plate (15), wherein a first oil cylinder seat (141) is provided on the left side plate (14), and a second oil cylinder seat (121) is provided on the front side plate (12); The left and right movable slide grooves (5) are a pair and are symmetrically arranged on the front side plate (12) and the rear side plate (13) of the deviation correction frame (1); The front-rear movable slide groove (6) is a pair, and the front-rear movable slide groove (6) is arranged to slide inside the left-right movable slide groove (5); The left and right push-pull oil cylinders (3) are arranged on the first oil cylinder seat (141) of the left side plate (14), and the piston rod ends of the left and right push-pull oil cylinders (3) are connected to the front-rear movable slide groove (6); The static probe casing seat (7) is arranged to slide in the forward and backward moving slide groove (6); The front and rear push-pull oil cylinders (4) are arranged on the second oil cylinder seat (121) of the front side plate (12), and the piston rod ends of the front and rear push-pull oil cylinders (4) are connected to the static probe sleeve seat (7); The static probe casing seat (7) is in the shape of a rectangular plate, and a casing hole (71) is provided at the center of the plate surface; The hydraulic workstation (2) is respectively connected to the left and right push-pull cylinders (3) and the front and rear push-pull cylinders (4) via oil circuits.

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