14 results about "Cone penetration test" patented technology

This invention discloses a biomimetic-based autonomous static cone penetration test system, comprising a controller, an upper expansion device, a loading device, a lower telescoping device, and a static cone penetration probe. The upper expansion device includes an elastic membrane surrounding a hollow cylindrical tube with permeable holes. The loading device includes four sets of hydraulic loading units. The lower telescoping device includes six radially expandable and retractable metal blades. Water is injected into the elastic membrane to cause it to expand and compress the surrounding soil, providing the reaction force required for the extension of the loading device. By controlling the four sets of hydraulic loading units in the loading device, the probe can penetrate the soil vertically and change its direction of travel. When the metal blades unfold, the bearing capacity of the soil above them provides the reaction force required for the retraction of the loading device. This invention eliminates the need for a reaction device on the ground surface and a probe rod between the loading device and the static cone penetration probe. This invention causes minimal disturbance to the surrounding environment and can be used in locations inaccessible to large machinery, expanding the applicability of static cone penetration test sites.

This invention discloses a three-dimensional stratigraphic modeling method for borehole strategy optimization, comprising the following steps: integrating discrete standard penetration test data, continuous static cone penetration test data, predicted unsampled location data, and existing stratigraphic data into multi-confidence geological exploration data; generating virtual boreholes with stratigraphic rationality using the GA-Stacking machine learning algorithm based on the multi-confidence geological exploration data; performing stratigraphic attribute modeling and interface reconstruction using the radial basis function implicit modeling method based on the original exploration data and virtual borehole data; and conducting uncertainty assessment and borehole layout optimization based on the constructed stratigraphic model. This invention addresses the impact of the sparsity of the original exploration data and the randomness of the modeling process on the accuracy of stratigraphic modeling by proposing an ensemble learning implicit stratigraphic modeling method based on multi-source sparse geological exploration data, providing an effective approach for refined stratigraphic modeling and a scientific basis for geological exploration borehole layout.

This invention provides a static cone penetration test (CPPT) system and method for measuring the thickness of carnallite ore layers based on an unmanned surface vessel (USV) with variable buoyancy anchoring. The system includes an USV body, a penetration unit, a main control unit, a data acquisition unit, a multi-parameter formation identification unit, and a fluid counterweight anchoring unit. When the USV body is not performing detection operations, the fluid counterweight anchoring unit increases the weight of the hull. As the static cone penetration probe penetrates the formation, it collects the end resistance at the probe tip and the frictional force on the probe sidewall sleeve, transmitting these data to the multi-parameter formation identification unit. The identification unit identifies the upper and lower interfaces of the carnallite ore layer. The control unit calculates the carnallite ore thickness based on the depth difference between the static cone penetration probes at the upper and lower interfaces of the carnallite ore layer. This invention improves measurement accuracy, resolves the contradiction between miniaturization and large reaction forces, does not damage the original crystallization environment of the salt lake, and enhances the safety of unmanned operations.

To save the labor of measuring work by eliminating the replacement of equipment.SOLUTION: In this testing device 1 for confirming the soil improvement effect, a measuring probe 3 is installed on the tip of a penetration rod 2. In the measurement probe 3, a tip cone 4 used for a dynamic cone penetration test is provided at a tip, an electrode portion 5 including an electrode 6 used for electric logging on an outer peripheral surface is provided above the tip cone 4, an outer diameter of the electrode portion 5 is formed to be smaller than an outer diameter of the tip cone 4, an axial center of the tip cone 4 and an axial center of the electrode portion 5 are eccentric, and the electrode 6 is disposed on the outer peripheral surface on an eccentric side. Since the axial centers of the tip cone 4 and the electrode part 5 are made eccentric and the electrode 6 is arranged on the outer peripheral surface on the eccentric side, the electrode 6 is surely brought into contact with the hole wall surface in the penetration process of the measuring probe 3, and electric logging can be performed.SELECTED DRAWING: Figure 1

The invention belongs to the field of geotechnical engineering reconnaissance, and provides a soil layer classification correction method and system based on static penetration test and numerical simulation, and the technical scheme is as follows: the internal relation among conical tip resistance, side friction resistance and a soil layer is revealed by deeply analyzing actual measurement data of the static penetration test, and the soil layer classification correction method and system based on static penetration test and numerical simulation are obtained by establishing a large amount of numerical simulation. Different conical tip resistances, side friction resistances and soil layer data information are obtained, and correction is carried out on the basis of the different conical tip resistances, side friction resistances and soil layer data information. According to the method, actual measurement data resources of the existing static sounding test can be effectively integrated and utilized and are combined with data obtained through numerical simulation, and the data volume is increased on the basis of original data. Huge data volume is analyzed and calculated in combination with artificial intelligence big data, and finally accurate correction of soil layer classification is achieved.

This invention belongs to the field of marine geotechnical engineering technology and relates to an active learning optimization method for in-situ cone penetration test layout based on seismic reflection data. First, based on a physically driven deep learning model, using modules such as wavelet inversion, reflection coefficient inversion, and acoustic attenuation compensation, cone tip resistance is gradually predicted from seismic reflection data, achieving high-fidelity extrapolation from sparse one-dimensional in-situ test data to continuous multi-dimensional profiles. Second, the average seismic reflection amplitude is used to quantitatively evaluate stratigraphic complexity, prioritizing the deployment of initial test points at locations with high complexity. In the sequential sampling stage, a two-stage candidate point selection strategy is proposed: an early inter-layer reflection amplitude strategy is used to quickly discover hidden strata, and a prediction uncertainty strategy is used in the later stage to minimize global error. A joint termination criterion combining the moving average convergence criterion and the continuous no-improvement criterion is introduced, stopping sampling when the marginal information gain decreases, avoiding the cost waste or insufficient accuracy caused by empiricism.

This invention provides a pressure-rotation cone penetration test (PPT) device and method for determining soil and rock parameters. The PPT device includes a housing, a torsional power unit, a static loading device, a pressure-rotation cone penetrometer, a displacement sensor, and a torque sensor, all installed within the housing. The torsional power unit drives the pressure-rotation cone penetrometer to rotate, while the static loading device applies downward pressure to the device. Under the combined action of both, the device rotates downwards into the soil and rock mass. The displacement sensor collects the downward displacement of the device, and the torque sensor measures the torque force exerted on the device as it rotates downwards into the soil and rock mass. The displacement and torque sensors transmit the collected data to a control computer via wired or wireless means. After receiving the penetration data from the sensors, the control computer calls the relationship model between the penetration data and soil parameters, substitutes the penetration data into the model, generates a test report, and displays it on a monitor in real time.

Disclosed in the present invention is a pile foundation bearing parameter calculation method based on cone penetration technology, the method comprising: S1, performing a cone penetration test at a pile position, so as to acquire raw cone penetration data; S2, on the basis of a cone tip resistance, calculating a soil unit weight, an internal frictional angle and an overburden stress; S3, on the basis of a pile foundation size, calculating a pile foundation side frictional resistance; S4, calculating a pile end resistance at the pile bottom of a pile foundation; and S5, calculating pile foundation bearing parameters. In the method, the correlation between a penetration resistance of cone penetration and a unit side frictional resistance and a unit end resistance in pile foundation bearing parameters is established, and the correlation between cone penetration data and an ultimate bearing capacity of a pile foundation is reflected in a relatively direct manner. An ultimate side frictional resistance and an ultimate end resistance that can be exerted by the pile foundation can be directly calculated by using the cone penetration data, thereby making up for the deficiency of conventional methods excessively relying on empirical formulas. The method is simple, feasible, time-saving and efficient.

This invention discloses a marine combined casing static cone penetration testing (PCT) device, comprising: a base with pre-drilled holes, an outer frame, a lifting power structure, and an upper clamping power structure; further comprising: an upper slewing power structure disposed above the outer frame, an upper clamping power structure disposed within the outer frame, and a lower slewing power structure; the upper and lower slewing power structures each include: a clamping device for clamping the casing or probe rod, and a power device for driving the casing or probe rod to rotate; wherein the clamping holes for clamping the casing or probe rod on the upper, lower, and upper clamping power structures are coaxially arranged with the pre-drilled holes. This invention is an equipment and drilling device for shallow seabed static cone penetration testing on small-tonnage construction vessels, and can meet the operational requirements for static cone penetration exploration on seabeds containing sandstone layers.

This invention discloses an intelligent stratification system and method for static cone penetration test curves based on a visual large-scale model, belonging to the field of intelligent processing and analysis technology for geotechnical engineering investigation data. The system includes a static cone penetration test data acquisition and standardization preprocessing module, which acquires multi-dimensional static cone penetration test data such as depth, cone tip resistance, and sidewall friction resistance, performs preprocessing, and generates standardized static cone penetration test curve images; a visual large-scale model module, which constructs a visual large-scale model to analyze the static cone penetration test curve images, identifies key points, and outputs soil layer numbers, soil properties, layer depths, and reasons for layering; a mathematical analysis module, which obtains layer depths based on a change point detection algorithm and constructs a soil property naming rule library, outputting layer and soil property naming results; and a fusion and output module, which performs comprehensive decision-making and naming arbitration, outputting layer results and soil property names. This invention achieves intelligent fusion of multi-source data, automation of layer identification, and structured result output, providing a new direction for the identification and classification of soil layers in static cone penetration tests.

1. The name of the design product: cone penetration tester. 2. The use of the design product: for cone penetration test. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

This invention belongs to the technical field of geotechnical engineering and earthquake engineering, and provides a method based on CPT and V s The joint testing method for liquefaction assessment, which considers the geological age effect, can quantitatively characterize the geological age effect of soil, combine the advantages of CPT and Vs tests, and does not require precise soil age information. The technical solution adopted includes the following steps: S1, in-situ test data acquisition, including static cone penetration test and shear wave velocity test; S2, parameter normalization processing, calculating normalized cone tip resistance and normalized shear wave velocity, and then introducing the soil classification index to obtain the normalized cone tip resistance of equivalent pure sand; S3, establishing the correlation between benchmark static cone penetration test and shear wave velocity; S4, determining the geological age aging factor of soil; S5, constructing a comprehensive evaluation index considering geological age; S6, establishing a liquefaction assessment model; S7, determining the liquefaction discrimination probability threshold; S8, evaluating the site liquefaction potential.

This invention belongs to the technical field of geotechnical engineering and earthquake engineering, and provides a site seismic delineation method based on the correlation between static cone penetration test (CPT) and shear wave velocity, fully combining CPT and V s The advantages of the two testing methods are that by introducing characteristic parameters reflecting the degree of soil aging, a more reasonable classification of seismic sites can be achieved, thereby improving the scientific nature of site classification and the reliability of seismic design. The method includes the following steps: S1, in-situ test data acquisition, including static cone penetration test and shear wave velocity test; S2, parameter normalization processing, calculating normalized cone tip resistance and normalized shear wave velocity, and then introducing soil classification index to obtain the normalized cone tip resistance of equivalent pure sand; S3, establishing the correlation between benchmark static cone penetration test and shear wave velocity; S4, determining the soil geological age aging factor; S5, constructing a comprehensive site seismic classification index; S6, site seismic category classification; S7, engineering application and result output.

The invention relates to static cone penetration test equipment and method, and belongs to the technical field of geological survey, the static cone penetration test equipment comprises a rack, a probe rod, a probe, a cable and measuring equipment, the probe is arranged at the tail end of the probe rod, the measuring equipment is arranged in the probe, the cable passes through the inside of the probe rod and is electrically connected with the measuring equipment, the probe is arranged in the rack, and the measuring equipment is electrically connected with the cable. A hydraulic cylinder used for driving the probe rod to move is arranged on the rack; the feeler lever is rotationally arranged in the rack, the feeler lever takes the axis direction as a rotating axis, and the feeler lever further comprises a first driving part for driving the feeler lever to rotate; a flaring strip is arranged on the probe rod, and the length direction of the flaring strip is parallel to the length direction of the probe rod. The device has the effect of improving the recovery safety of the probe rod.