116 results about "Offshore construction" patented technology

The invention provides an adjustable floating wind power foundation based on reinforcement learning and a modular construction method, and belongs to the technical field of offshore wind power. Comprising a fan, and the bottom of the fan is fixed to a tower drum; the bottom of the tower drum is fixedly connected with the floating base; the floating base comprises a first buoy, a second buoy and a third buoy which are arranged in a triangular shape; wherein the bottom of the tower drum is fixedly connected with the first buoy; the first buoy, the second buoy and the third buoy are fixedly connected through supporting steel pipes; the tower drum is fixedly connected with the second buoy and the third buoy through inclined supports; the buoy is further connected with an anchor chain, and the other end of the anchor chain is connected with the suction barrel and anchored to the seabed through the suction barrel. By adopting a coupling connection mode of the inclined support, the tower drum and the floating drum, the storm resistance of the whole structure is improved. A steel-concrete composite structure is adopted, the steel consumption is reduced, and the material cost is reduced. A modular construction method is adopted, the offshore construction time is greatly shortened, and the influence of weather and sea conditions on engineering is reduced.

The utility model provides an offshore photovoltaic platform structure provided with a box transformer substation platform and a cable trestle. The offshore photovoltaic platform structure comprises a steel truss platform erected on the sea. The steel pipe piles are connected with the steel truss platform and used for supporting the steel truss platform, and the steel truss platform and the steel pipe piles are connected through inclined strut units; the photovoltaic module is laid in the steel truss platform; the box transformer substation platform is arranged on the north side of the steel truss platform; and a cable trestle is arranged on the steel truss platform. The box-type transformer substation platform installed on the steel truss platform is adopted, a traditional box-type transformer substation platform is often separated from a photovoltaic support, independent piling is needed, the box-type transformer substation platform is integrated on the steel truss platform, steel and offshore construction operation procedures are reduced, and the purposes of convenient construction and low cost are achieved.

The utility model discloses a single pile internal integrated suspension platform for deep sea fishery breeding, which comprises at least one layer of suspension platform, the suspension platform is suspended below an original working platform in a single pile, if multiple layers of suspension platforms exist, the suspension platforms are sequentially and downwards suspended below the working platform, and every two platforms are communicated with each other. According to the utility model, a large enough working area can be provided in the single pile for arrangement, operation and maintenance of culture equipment, and enough operation space is provided for fish collection and other culture work without occupying the original space of an inner platform and a tower barrel platform of the single pile. Meanwhile, the integrated suspension platform is integrated with a single-pile inner platform, can be hoisted together with the inner platform in the offshore construction stage, does not occupy extra ship engine resources, and has the advantage of low construction cost.

The invention provides a construction technology of a full-assembly type marine disaster comprehensive monitoring platform, and belongs to the technical field of monitoring platform construction, and the construction technology comprises the steps: 1, executing a construction measurement technology for the full-assembly type marine disaster comprehensive monitoring platform; 2, executing a prefabricated part shipping process for the full-assembly type marine disaster comprehensive monitoring platform; and step 3, executing an overwater installation process for the full-assembly type marine disaster comprehensive monitoring platform. Based on the construction engineering practice of a comprehensive marine disaster prevention and control system and aiming at the characteristics of heavy storm, rapid water flow, large component volume and high installation precision requirement of offshore construction of the comprehensive marine disaster monitoring platform, an innovative process covering the whole process of construction measurement, prefabricated component transportation and overwater installation is provided; the key technical problems of prefabrication, transportation and hoisting of open-sea large components are solved, the construction quality and safety of a monitoring platform are guaranteed, and the open-sea engineering construction efficiency is improved.

A connector assembly 200 for connecting two pipe sections. The pipe sections may be used in offshore construction such as offshore oil and gas exploration and offshore wind turbine generators. First 201 and second 202 connector elements adjoin first and second pipes and are couplable together. A circumferential recess 204 is defined by the connector elements and a locking ring 203 fits in the recess 204 to lock the connector elements. Engaging elements 205 of the connector elements engage with the locking ring 203. Overlapping members 206, 207 of the connector elements form a lap joint when the connector elements are coupled. In one aspect, the engaging elements extend over the region of overlap of the overlapping members. In another aspect, there is a substantially consistent spacing between upper and lower profiles of the locking ring and upper and lower corner edge profiles of the recess. This may contribute to a reduction in stress and mitigate fatigue.

The application relates to an actuator of a quick-response and high-precision telescopic positioning system, the electromagnetic valve comprises a valve body, a valve core and a spring, and the electromagnetic valve comprises a base platform, a hydraulic cylinder and an electromagnetic valve, and further comprises a control system and a protection system; the control system judges and levels the inclination of the base platform through a horizontal judging mechanism and a power-on control module; the protection system provides multiple protections for the lifting of the base platform through an induction module, a backup control module and a backup locking valve. Due to the adoption of the above technical scheme, the inclination of the offshore base during the construction process is reduced to a certain extent, so that the safety of offshore construction is ensured to a certain extent.

This invention discloses an autonomous vessel and a method for maintaining a precise position or trajectory during offshore operations (e.g., cable or pipe laying or offshore construction installation). The vessel includes multiple externally anchored mooring lines, a winch system with tension sensors, a position sensor, and a control system. The control system processes position and tension data to detect deviations caused by environmental forces such as wind, waves, or ocean currents. In response, the control system activates the winch system to adjust the length of the mooring lines, counteracting forces caused by different environmental factors and achieving controlled maneuvering within the mooring area. An optional artificial intelligence module can learn from historical data to predict dynamics and optimize adjustments along predetermined waypoints. Compared to traditional dynamic positioning systems, this reduces fuel consumption, improves accuracy, and minimizes risk. It is applicable to vessels such as barges or installation platforms.

The utility model relates to the technical field of cofferdam construction, in particular to a measurement auxiliary instrument for cofferdam offshore construction. The device comprises a GPS measuring rod, a stabilizing support used for stabilizing the GPS measuring rod and a lifting rope with the free end fixedly connected to the support, and the fixed end of the lifting rope is fixedly connected to a winding mechanism used for winding the lifting rope. The device is simple to manufacture, can be repeatedly used, is convenient to mount, dismount and use, and has better durability; the GPS measuring rod of the device can stably stay on the upper surface of the thrown and filled stone, the GPS measuring rod is prevented from deviating from the measuring position due to underwater surge, and then the precision of measuring the riprap elevation is improved.

The invention discloses a submarine pipeline novel repair technology construction multifunctional dragging head which comprises a shell, a pull rod and a tension sensor, the shell comprises a first shell body, a second shell body, a third shell body and an inner shell body, the two ends of the second shell body are connected with the first shell body and the third shell body respectively, the inner shell body is arranged in the first shell body, the inner shell body is in a hemispherical shape, and the pull rod is arranged in the inner shell body. An inner cavity of the first shell is in a hemisphere shape matched with the inner shell, the inner shell can slide in a hemisphere shape relative to the first shell, the first shell and the inner shell are provided with through holes corresponding to the pull rod, the pull rod stretches into the inner shell through the through holes and is rotationally connected with the inner shell, a tension sensor is arranged in the second shell, and the third shell is connected with the tension sensor. According to the invention, in offshore construction and simulation test scenes, the multi-elbow complex-path subsea pipeline can be adapted, in-pipe visual detection and dragging tension data acquisition are synchronously realized, and support is provided for operation safety assessment, process optimization and fault pre-judgment.

The invention provides an offshore bottom water thin mutual reservoir fracturing parameter design method, and relates to the technical field of oil and gas exploitation, the method comprises the following steps: S1, determining vertical distribution of a reservoir section mud layer, a sandstone layer and a water layer according to logging data, and establishing a target well section crustal stress and rock mechanics profile; s2, acquiring the fracture toughness of rocks with different shale contents under different stresses to obtain a corrected fracture toughness profile; s3, according to the fracture half length, the fracturing displacement, the critical mudstone layer penetrating thickness corresponding to the fracturing fluid viscosity and the penetrating layer fracture height of the reservoir are initially calculated, and parameters needed for avoiding a water layer and fully transforming a thin interbed are obtained; s4, according to the fracture flow conductivity, the sand amount and the sand-carrying fluid amount are calculated initially; s5, the liquid efficiency is determined according to block fracturing historical data, the prepad fluid proportion range is initially calculated, and the prepad fluid amount is calculated; and S6, optimizing parameters through numerical simulation, and determining final fracturing parameters and a pump injection program. According to the method, the requirements of geological and offshore construction can be met, and the optimal fracturing scheme and the optimal pumping program can be rapidly determined.

The present invention provides a prefabricated coating and anti-corrosion construction method for wind turbine tower corrosion protection, which relates to the technical field of corrosion protection of the outer wall of offshore wind turbine tower pile foundations. The prefabrication method prepares an anti-corrosion structure for the outer wall of a wind turbine tower, including a wind turbine tower, wherein a rolling frame is symmetrically provided at the lower end of the wind turbine tower, an electric rotating device is provided at the center of a side wall near the wind turbine tower, a brush is provided at the upper end of the side wall of the electric rotating device near the side wall of the wind turbine tower, and a second layer of corrosion protection strip and a first layer of corrosion protection strip are provided on the side wall of the electric rotating device. By adopting this process flow, prefabrication on land can completely avoid the occurrence of various dangerous situations during offshore construction, and the mechanical strength of the formed coating and corrosion protection structure is much higher than that of traditional coating and corrosion protection technology, thereby realizing the coating and corrosion protection technology innovation of "prefabrication on shore and piling in the sea".

This invention relates to the field of marine engineering safety early warning and intelligent prediction, and in particular to a point-to-area short-term wave height prediction method and system for offshore construction early warning. The invention takes historical pattern wave height, historical reference monitoring wave height, and future pattern wave height of a measurement point as inputs. It constructs a short-term prediction model based on a Transformer encoder and introduces a joint loss function including absolute error, large value underestimation penalty, trend asymmetry, residual, and peak time terms to automatically output the future correction results for each measurement point. Then, based on the mapping relationship between the measurement point and the corresponding coverage area, the correction results of the measurement point are extended to the entire target area to form a corrected wave height field. Combined with construction thresholds, it automatically determines the levels of normal, attention, alert, and work stoppage. Without requiring continuous manual interpretation, it forms a complete closed loop from data acquisition, regional analysis, prediction, regional correction to graded early warning and result storage and push.

The application discloses a marine photovoltaic construction ship, comprising a ship body, a marine crane arranged on the ship body, a pile sinking positioning frame positioning tool arranged on the ship body and having a tool positioning groove for positioning each anti-sinking plate of the pile sinking positioning frame, a foundation pile positioning tool arranged on the ship body and having a foundation pile positioning groove for positioning the foundation pile, and a photovoltaic unit positioning tool arranged on the ship body and having a support leg positioning cylinder for positioning the support leg of the photovoltaic unit. The application can hoist the foundation pile, the pile sinking positioning frame and the photovoltaic unit by itself at a wharf without setting a ship loading crane. After arriving at a marine construction site, the marine photovoltaic construction ship can replace a floating crane to perform the pile sinking operation of the foundation pile. The marine photovoltaic construction ship provided by the application has the functions of a ship loading crane, a transport ship and a construction ship, reduces the number of construction ships and lowers the construction cost.

The invention discloses pile sinking positioning equipment and method for a floating type fan foundation, and relates to the technical field of ocean engineering. The pile sinking positioning equipment comprises a supporting frame, a guide assembly and a translation adjusting mechanism; the supporting frame is used for providing a supporting reference after initial positioning is achieved on a seabed. The guiding assembly is movably arranged on the supporting frame and used for positioning and guiding the mooring anchor pile. The translation adjusting mechanism is arranged between the supporting frame and the guide assembly and used for driving the guide assembly to move in the first direction and the second direction in the horizontal plane relative to the supporting frame. By arranging the bottom-supported supporting frame and the translation adjusting mechanism, the final positioning accuracy of the mooring anchor pile can be stably controlled within the required range through accurate translation adjustment under the condition that large errors exist in initial positioning, the underwater construction positioning accuracy of the mooring anchor pile of the floating type draught fan can be improved, and the underwater construction positioning accuracy of the mooring anchor pile of the floating type draught fan can be improved. And meanwhile, the offshore construction difficulty and the mooring cost are reduced.

The present application belongs to the field of offshore construction, and relates to a self-elevating offshore auxiliary pile pulling platform, which comprises a platform ship system, a counterweight system and a pile pulling system. The platform ship system comprises a ship body, a bow and a stern. A pile leg is arranged through the ship body, and a pile shoe is arranged at the bottom of the pile leg. A platform posture monitoring device and a pile leg lifting control device are arranged on the ship body. A cabin is arranged in the ship body, and the counterweight system is arranged in the cabin and comprises rails, flat cars, counterweights and a crane. The pile pulling system comprises a pile pulling platform module, which is connected to the stern through a hydraulic push-pull device. A pile pulling mechanism is arranged on the pile pulling platform module, which performs pile pulling operation on the pile foundation. A pile pulling cooperative control center can collect parameters such as pulling force and pulling speed in real time during the pile pulling process, and can adjust the pulling speed of the auxiliary pile pulling operation to be consistent with the pulling speed of the main offshore self-elevating operation platform, so as to maximize the pile pulling effect while ensuring the safety of the pile pulling platform and the operation platform.

The application relates to a method for installing and constructing an offshore wind turbine jacket, which can quickly determine whether the jacket is blocked during lowering by judging whether the sling is not stressed, the jacket is not lowered to the design elevation or the jacket is inclined; if the jacket is blocked, a tugboat is controlled to apply a transverse force to the low point of the jacket, so that the lateral extrusion surface of the pile wall of the pile of the insertion tip and the foundation pile is directly separated, the static friction balance is broken, and the gap between the insertion tip and the pile wall is enlarged; the main hook synchronously applies a vertical lifting force, and the jacket is quickly pulled out of the blocking position after the gap is formed. The combined effect of the lateral separation and the vertical pulling of the application can more efficiently break through the blocking threshold, reduce the hard friction damage between the pile wall and the insertion tip, and shorten the unblocking time. The scheme of the application uses two types of conventional offshore construction equipment, i.e., a crane ship main hook and a tugboat, without the need of customizing special devices, and the cooperative operation of the tugboat and the crane ship does not need complex linkage control, so that the equipment investment cost is reduced.

The application discloses a kind of sea survey operation platform devices, it is related to offshore construction surveying technical field, including engineering pile, ladder and surveying column, the bottom end of the engineering pile is provided with flat link, the top of the engineering pile is installed with stiffened plate, the top of the engineering pile is installed with contact beam, and multiple crawling crossbars are installed in the inner wall of contact beam, the upper walkway is arranged above the contact beam, the top of the engineering pile is installed with surveying column, the top of the surveying column is provided with fixed slot, the top of the surveying column is provided with forced counterweight disc, and mounting bracket is welded on the outer wall of forced counterweight disc, the inner wall of mounting bracket is provided with mounting mechanism for fixing, the middle position of forced counterweight disc is provided with air slot, the device is rotated positioning bolt through work type frame and extends to mounting bracket position, and then forced counterweight disc is fixed at surveying column, so as to be convenient for quick installation and fixing, save installation time.

The present application relates to the field of foundation construction technology, and discloses a method and system for intelligent construction of super-large anti-collision box cofferdams at sea, the method comprising: real-time collection and fusion of multi-source heterogeneous sensor data, optimizing and generating control instructions based on the current state and target trajectory, and continuously executing the control instructions until the position and attitude deviations meet the preset thresholds and are stably maintained, for monitoring the health status of the components and dynamically reconstructing the control strategy in the event of failure. The system comprises: an embedded autonomous hardcover system, which is integrated into the anti-collision box body and consists of the following modules: a multi-source perception module, an onboard collaborative AI decision module, and an active attitude control module, whose actuators include omnidirectional thrusters and a dynamic ballast water system. The present invention achieves high-precision, anti-disturbance intelligent lowering and positioning of super-large components at sea through a high-speed and robust perception-decision-execution closed loop, thereby improving the efficiency and safety of offshore construction.

The invention discloses a floating type offshore photovoltaic platform floating body module which comprises a wave absorbing opening, a horizontal flow guide groove, a connecting open groove, a pin shaft hole and a vertical flow guide hole. The wave absorbing openings and the horizontal flow guide grooves are arranged at intervals in the length direction and the width direction of the module and cover the whole length direction and the width direction, and the middle part of the bottom of the module is integrally concave; connecting open grooves are formed in the four side faces of the module, the pin shaft holes are located above the connecting open grooves, and the vertical flow guide hole is formed in the middle concave position of the bottom of the module. By optimizing the structural design, the block has wave absorbing and flow guiding functions, the wind wave resistance of the platform can be improved, and it is ensured that the platform stably operates in the complex marine environment; the platform is uniform in specification and shape, can be manufactured into standard parts, can be produced in batches by adopting a set of mold, can reduce offshore construction difficulty, and can realize flexible reconstruction of the platform.

An autonomous vessel and method for maintaining precise position or trajectory during marine operations, such as cable or pipe laying or offshore construction and installation, are disclosed. The vessel includes multiple mooring lines anchored externally, a winch system with tension sensors, a position sensor, and a control system. The control system processes positional and tension data to detect deviations caused by environmental forces like wind, waves or currents. In response, it actuates the winch system to adjust mooring line lengths, counteracting forces and enabling controlled maneuvering within the mooring spread. An optional artificial intelligence module learns from historical data to predict dynamics and optimize adjustments along predefined waypoints. This reduces fuel use, enhances accuracy, and minimizes risks compared to conventional dynamic positioning systems. Applicable to vessels like barges or installation platforms.

This invention discloses a construction device for the integral hoisting of steel reinforcement in cast-in-place offshore beams, comprising a movable base and a folding hanging basket mounted on the movable base. The movable base is equipped with a moving device, and the folding hanging basket includes a receiving chassis mounted on the movable base and a hanging basket frame that is folded relative to the receiving chassis via a rotatable connection. An anchoring device includes an anchoring device and a clamping device. The anchoring device is located at the end of the movable base away from the hanging basket frame, and the clamping devices are located on both sides of the movable base. This invention can significantly improve the safety and efficiency of steel reinforcement construction in cast-in-place offshore beams, providing more reliable protection for the construction of large structures such as offshore bridges, and addressing various challenges in offshore construction.

The invention provides an offshore construction umbilical cable dragging head protection frame, and relates to the technical field of offshore construction, the offshore construction umbilical cable dragging head protection frame comprises a reinforcing table top, the bottom of the reinforcing table top is fixedly connected with a supporting stand column, and the reinforcing table top is of an arc-shaped structure so as to be matched with a large reel pipe disc loaded by an engineering ship. The reinforcing table board is designed to be arc-shaped so as to adapt to a large reel pipe disc loaded by an engineering ship. Through cooperation of the reinforcing table board and the supporting stand column, a storage space is reserved for the umbilical cable dragging head, so that the umbilical cable dragging head is protected and is prevented from being extruded by the umbilical cable in the processes of inverting, transporting and laying the umbilical cable, the umbilical cable is evenly distributed in the cable winding disc and is not prone to being damaged, and stable transportation of the umbilical cable dragging head is guaranteed. Meanwhile, an umbilical cable pre-debugging worker can test and monitor the light reflection time domain, conductor resistance, insulation resistance and the like of the umbilical cable dragging head in the loading, transporting and laying period of the umbilical cable, and the problem that in the prior art, testing can only be carried out after laying is completed is solved.

A noise abatement system for offshore construction may include a foundational pile configured for disposition in a floor of a body of water, an array of piles configured for disposition in the floor of the body of water around the foundational pile, and an array of inflatable balloons coupled to the array of piles and disposed in the body of water. The array of piles may be configured to attenuate sound in the floor of the body of water and the array of inflatable balloons may be configured for disposition around the foundational pile and configured to attenuate sound in the body of water.

This utility model discloses a pipe pile for the construction of offshore photovoltaic support modules, relating to the field of offshore photovoltaics. The pipe pile for offshore photovoltaic support module construction includes a precast pipe pile, a precast pipe pile head sealing plate, and pipe pile components mounted on the precast pipe pile head sealing plate. Before driving the precast pipe pile, embedded components are welded to it, eliminating the need for welding embedded components at sea, improving construction efficiency, reducing construction costs and risks in offshore construction. Separating the supports increases the adjustment space in offshore construction. The photovoltaic support module is installed by connecting its four corner points to the supports on four embedded components, with the supports on the embedded components corresponding to adjacent photovoltaic support modules, achieving shared piles and significantly reducing the number of precast pipe piles used.

The present invention relates to the field of offshore construction technology, and in particular to a system and method for monitoring and protecting the hammering force and soil plug of offshore open pipe piles. The system comprises a hammering force monitoring module, a soil plug height dynamic monitoring module, and a protection module, which are arranged at the opening at the top of the pile. The soil plug height dynamic monitoring module comprises an absolute soil plug height monitoring mechanism and a relative soil plug height monitoring mechanism. The absolute soil plug height monitoring mechanism is located above the relative soil plug height monitoring mechanism, the absolute soil plug height monitoring mechanism is in contact with the relative soil plug height monitoring mechanism, and the relative soil plug height monitoring mechanism is in contact with the surface of the soil plug. The protection module is arranged along the axial direction of the open pile, and is wrapped around the outside of the sensor on the inner wall of the pile body. The system improves the efficiency and safety of offshore large-diameter open steel pipe pile driving construction, provides accurate data support for construction control by real-time monitoring of key parameters, and reduces construction risks.

The invention is suitable for the technical field of ocean engineering, and provides a ship offshore construction positioning method which comprises the following steps: acquiring the current operation environment of a workboat; performing safety assessment on the current working environment, and determining whether the current working environment meets the laying working environment; when a laying operation environment is met, the underwater acoustic positioning beacons and the corresponding bases are lowered to a target seabed implantation point through laying equipment; after the underwater acoustic positioning beacon is arranged at the target seabed implantation point, acoustic response coupling is carried out on a shipborne underwater acoustic positioning system of the workboat and the underwater acoustic positioning beacon to obtain relative positioning data of the workboat relative to the underwater acoustic positioning beacon, and the relative positioning data serve as redundancy or replacement positioning information of a satellite positioning system of the workboat. The problems that an existing satellite positioning system has limitation, is prone to signal drifting or failure, is prone to interference of platform protrusions, or generates electromagnetic and acoustic interference with equipment such as an underwater robot, and consequently positioning data are not reliable are solved.

The invention provides a small floating platform for nearby control of an underwater production system of a marginal gas field, which comprises a top platform, a support column and a bottom ballast tank, the top platform is arranged at the top end of the support column, and the bottom ballast tank is arranged at the bottom end of the support column. The method has the beneficial effects that the movable small floating platform is adopted and arranged at the wellhead nearby, the length of the umbilical cable is shortened from the kilometer level to the hectometer level, the material cost, the manufacturing cost, the laying cost and the maintenance cost of the umbilical cable are remarkably reduced, the offshore construction period is shortened, and the economic benefits of marginal gas field development are effectively improved. On the basis, the problems of control signal delay, attenuation of hydraulic pressure and medicament injection pressure and the like caused by long-distance transmission can be avoided, the response speed, stability and reliability of a control system are greatly improved, and the method is particularly suitable for economic and efficient development of offshore marginal gas fields which are far away from a main gas field and are limited in reserves and distributed dispersedly.

The invention discloses a risk dynamic prediction method, system, medium and equipment for offshore construction, and belongs to the field of offshore construction safety prediction.The method comprises the steps that laser point cloud time series data of offshore wind power construction components and meteorological environment monitoring data including wind speed, wind direction, wave height, tide level, flow velocity and rainfall are collected; constructing a component error time sequence and a meteorological environment time sequence which are in time alignment; inputting the two sequences into a preset risk prediction model, extracting component error features layer by layer through a multi-stage time sequence convolutional network, performing weighted correction on the features by using meteorological environment sequence fragments in a corresponding time view in each layer, and transmitting the corrected features layer by layer; and predicting an error of the component in a future preset time period based on the final layer feature regression, and outputting a risk prediction result in combination with a preset risk judgment rule. By implementing the method, the problem that risk prediction is lagged and inaccurate in the offshore wind power construction process in the prior art can be solved.

This invention discloses a mud circulation device and method for bored piles in deep-sea aquaculture areas, belonging to the field of offshore construction engineering. It includes: a first supporting steel pipe, multiple first supporting steel pipes fixed to the seabed by a vibratory pile driver; a construction platform detachably connected to the first supporting steel pipes; a bored pile driver installed on the construction platform; a steel casing installed adjacent to the construction platform, with its bottom fixed to the seabed and its top extending above sea level; and a mud circulation mechanism floating on the sea surface near the construction platform, connected to the mud flow channel and the steel casing. This invention solves the problem of bored pile drivers being unable to operate at sea. It utilizes a mud separator to separate the waste slurry generated during offshore bored pile operations into mud, filtrate, and solid waste. The solid waste is transferred for treatment, the filtrate is discharged into the sea after passing pH testing, and the mud can be recycled, reducing the cost of mud usage. This method has green, environmentally friendly, energy-saving, and emission-reducing effects in aquaculture areas.

The present application relates to the offshore fixed platform foundation construction technical field, specifically relates to a kind of offshore jacket rock-socketed pile construction control method, including based on site geological survey data evaluation outer pile into rock depth range;According to the dynamic difference of real-time curve in the process of outer pile sinking and preset standard curve, the decreasing gradient of hammering energy is adjusted according to preset strategy;When jacket leveling, the residual bending deformation of outer pile exceeding preset threshold is corrected;PBA drill is laid in the interior of outer pile, and drilling, inserting inner pile and grouting material are sequentially completed, the risk control of three links of outer pile rock-socketed, jacket leveling and pile drilling is integrated into the same technical system in the present application, using the construction logic of "design evaluation-real-time monitoring-dynamic adjustment-closed loop control", the safety, quality and efficiency of offshore construction are improved, which helps to improve the construction performance of contractor under the actual working conditions such as weak management and control of integrated service provider, difficult coordination of multiple service providers and insufficient experience of self-execution team.