阅读说明：本技术 一种海底土工原位多参数探测系统 (Seabed geotechnical in-situ multi-parameter detection system ) 是由 陈家旺 阮东瑞 任自强 洪义 高峰 周朋 梁涛 于 2020-11-30 设计创作，主要内容包括：本发明涉及海洋工程技术装备领域,具体涉及一种海底土工原位多参数探测系统。包括包括两个对称设于整体框架内的摩擦轮,两摩擦轮对接处上下方均设有准直机构；绞车固设于摩擦轮后侧的整体框架底面上,绞车转轮与伺服电机相连；柔性探杆包括通过铠装电缆连接的多段刚性杆件,静力触探探头与柔性探杆一端相连,柔性探杆绕设在绞车上,带有静力触探探头一端依次穿过对接装置与准直机构后进入两摩擦轮间,最终向下将静力触探探头贯入至土体。本发明有着较好的稳定性。(The invention relates to the field of ocean engineering technical equipment, in particular to a submarine geotechnical in-situ multi-parameter detection system. The device comprises two friction wheels symmetrically arranged in an integral frame, wherein alignment mechanisms are arranged above and below the butt joint of the two friction wheels; the winch is fixedly arranged on the bottom surface of the integral frame at the rear side of the friction wheel, and the winch rotating wheel is connected with the servo motor; the flexible feeler lever comprises a plurality of sections of rigid rod pieces connected through armored cables, the static sounding probe is connected with one end of the flexible feeler lever, the flexible feeler lever is wound on a winch, one end of the flexible feeler lever with the static sounding probe sequentially penetrates through the butt joint device and the collimation mechanism and then enters between the two friction wheels, and finally the static sounding probe is downwards penetrated into a soil body. The invention has better stability.)

1. The seabed geotechnical in-situ multi-parameter detection system is characterized by comprising an integral frame, a constant-speed penetration system, a butt joint assembly system, a flexible probe rod and a static sounding probe;

the constant-speed penetration system comprises two friction wheels symmetrically arranged in the same vertical plane, and alignment mechanisms are arranged above and below the butt joint of the two friction wheels; the friction wheels are provided with brackets, and hydraulic motors are arranged in the brackets and used for driving the friction wheels to rotate; the two supports are connected through a hydraulic locking oil cylinder and used for providing opposite extrusion friction force between the two friction wheels, the two supports are fixedly arranged on the bottom surface in the integral frame through the same base, and the base is also provided with an energy accumulator which is connected with a hydraulic motor; the bottom surface in the integral frame is also provided with a hydraulic valve box, a hydraulic pipeline and an underwater motor which are used for providing hydraulic power and are connected with a hydraulic motor and a hydraulic locking oil cylinder;

the butt joint assembly system comprises a winch, a butt joint device and a driving rotating wheel; the winch is fixedly arranged on the bottom surface of the integral frame at the rear side of the friction wheel, the winch rotating wheel is connected with the servo motor, and the driving rotating wheel is arranged on the supporting frame and connected with the servo motor;

the flexible probe rod comprises a plurality of sections of rigid rod pieces connected through armored cables, and the static sounding probe is arranged at one end of the flexible probe rod; the flexible probe rod is wound on the winch, one end with the static sounding probe sequentially penetrates through the driving rotating wheel, the butt joint device and the aligning mechanism, enters between the two friction wheels and finally penetrates into the ground, and the butt joint device is used for connecting and disassembling the multi-section rigid rod piece.

2. The subsea geotechnical in-situ multi-parameter detection system according to claim 1, wherein said unitary frame includes a support frame; the braced frame outside is equipped with anticollision grid and crashproof rubber strip, and the top is equipped with hoist and mount frame, and inside is equipped with anticorrosive zinc block.

3. The in-situ multi-parameter detection system for the seabed soil as claimed in claim 1, wherein the friction wheel is detachably connected with the bracket, the outer ring of the friction wheel is provided with a groove, and the groove is provided with lines.

4. The in-situ multi-parameter detection system for the seabed soil as claimed in claim 1, wherein the rigid rod is a hollow cylinder structure, and the two ends of the rigid rod are respectively provided with a quick link mechanism.

5. The system according to claim 4, wherein the quick link mechanism comprises a male plug and a female plug.

6. The system as claimed in claim 1, wherein the winch comprises a winch rotating frame, the winch rotating frame is mounted on the base, and the inner side of the winch rotating frame is provided with annular teeth and is connected with the servo motor through a gear; the base is further provided with a rotating wheel and a guide rail, the rotating wheel is used for supporting and guiding the winch rotating frame during rotation, and the guide rail is used for guiding the flexible feeler lever.

Technical Field

The invention relates to the field of ocean engineering technical equipment, in particular to a submarine geotechnical in-situ multi-parameter detection system.

Background

The investigation and research of the properties of the seabed soil body are an essential part for the construction of offshore oil platforms, seabed tunnels, oil and gas pipelines, optical cables and other ocean engineering. The research on the properties of sediment soil mass tens of meters below the sea bottom has important significance for various aspects such as marine environment investigation, sea bottom resource exploration, marine development and utilization and the like. Under the extreme environmental load of ocean, the marine structure basis collapses or excessively inclines and happens occasionally, leads to conventional design redundancy height excessively. The safe and economic ocean engineering structure basic design mainly depends on the efficient exploration and scientific analysis of the mechanical characteristics of the seabed stratum.

Compared with other ex-situ test methods, the static sounding technology has the characteristics of no need of sampling in field test, wide applicable range, rapidness, economy and the like, and shows incomparable superiority in engineering geology comprehensive analysis and evaluation. The application of the static sounding technology to the submarine soil body survey can show own advantages. The seabed soil is generally a recent sediment, is thick, is saturated and loose and is easy to disturb, the operations of drilling, sampling and the like disturb the soil, and the soil loses water and loses pressure after field observation or indoor test is carried out after sampling, so that the property of the in-situ seabed sediment soil cannot be obtained; the static sounding technology can obtain more real soil body properties because of testing in the actual environment of the seabed soil body. The method has the advantages of high surveying speed and high efficiency, and the advantages are more obvious when large-scale submarine soil surveying is carried out, such as route survey of submarine cables and oil pipelines.

At present, most of static sounding technical equipment adopts a straight rigid probe rod with the whole length to directly press a probe into the surface of a seabed, so that radial instability and inconvenience in operation are caused, and the static sounding technical equipment is not suitable for surveying deep seabed sediments; in addition, the segmented probe rod mode is adopted, manual butt joint is needed, the requirement of large operation labor is met, and the detection method is only limited to a shallow water operation environment and is not suitable for deeper sea areas.

Therefore, the submarine geotechnical in-situ multi-parameter detection system is designed, the requirements of accurate surveying technology and equipment aiming at the properties of the submarine soil body are met, the submarine soil body property surveying work is carried out under the deep sea with larger working water depth, the surveying depth is further improved, and the marine geotechnical engineering in-situ surveying equipment level in China can be improved.

SUMMARY OF THE PATENT FOR INVENTION

The invention aims to provide an in-situ multi-parameter detection system for seabed soil engineering, which solves the problems that the conventional survey equipment adopts a straight rigid probe rod with the whole length to directly press a probe into the surface of a seabed, so that radial instability and inconvenience in operation are caused; and the adoption of the segmented probe rod mode needs manual butt joint and is not suitable for the technical problem of deeper sea areas.

In order to solve the technical problem, the solution of the invention is as follows:

the submarine geotechnical in-situ multi-parameter detection system comprises an integral frame, a constant-speed penetration system, a flexible probe rod, a butt joint component system and a static sounding probe;

the constant-speed penetration system comprises two friction wheels symmetrically arranged in the same vertical plane, and alignment mechanisms are arranged above and below the butt joint of the two friction wheels; all be equipped with the support on the friction pulley, be equipped with hydraulic motor in the support, hydraulic motor drive symmetric distribution's friction pulley carries out the rotation in opposite directions to the drive is located the probe rod in the middle of two friction pulleys and constantly at the uniform velocity penetrates ground. The two supports are connected through a hydraulic locking oil cylinder and used for providing opposite extrusion friction force between the two friction wheels, the two supports are fixedly arranged on the bottom surface in the whole frame through the same base, and the base is also provided with an energy accumulator which is connected with a hydraulic motor and used for absorbing pressure impact generated when an executing element suddenly stops moving in a hydraulic system, so that damages to instruments, elements and sealing devices are avoided, and vibration and noise are reduced. A hydraulic valve box, a hydraulic pipeline and an underwater motor which are used for providing hydraulic power are also arranged on the bottom surface in the integral frame and are connected with the hydraulic motor and the hydraulic locking oil cylinder; the friction force of the friction wheel to the probe rod is adjusted through the hydraulic locking oil cylinder, so that the penetration force is adjusted. The hydraulic valve box, the hydraulic pipeline and the underwater motor provide hydraulic power for the hydraulic driving system. The hydraulic valve box controls the rotation speed of the friction wheel, so that the penetration speed of the probe rod is adjusted.

The butt joint assembly system comprises a winch, a butt joint device and a driving rotating wheel; the winch is fixedly arranged on the bottom surface of the integral frame at the rear side of the friction wheel, and the winch rotating wheel is connected with the servo motor; the driving rotating wheel is arranged on the supporting frame and is connected with the servo motor; the quick butt joint mechanism between adjacent small sections of rigid rod pieces is butted and disassembled by the butt joint device.

The flexible probe rod comprises a plurality of sections of rigid rod pieces connected through armored cables, and the armored cables can transmit signals in real time. The flexible probe rod is wound on the winch, the static sounding probe is connected with one end of the flexible probe rod, the end penetrates through the butt joint device, enters between the two friction wheels, and finally penetrates into the ground after passing through the collimation mechanism; the butt joint device is driven by a hydraulic motor, and adopts an annular chuck structure to connect and disassemble the probe rod. When the static sounding probe penetrates into a seabed soil body, various in-situ geotechnical data can be collected, and the data are transmitted to the underwater electronic cabin in real time through the signal armored cable. The static sounding probe acquires data of in-situ multi-parameters such as cone tip resistance, side wall friction force, pore water pressure, resistivity and the like.

As an improvement, the friction wheel is detachably connected with the support, a groove is formed in the outer ring of the friction wheel, and grains are arranged on the groove.

As an improvement, the rigid rod piece is of a hollow cylinder structure, and a male head plug and a female head plug are respectively arranged at two ends of the rigid rod piece.

As an improvement, the winch comprises a winch rotating frame, the winch rotating frame is arranged on a base, and annular teeth are arranged on the inner side of the winch rotating frame and connected with a servo motor through a gear; the base is further provided with a rotating wheel and a guide rail, the rotating wheel is used for supporting and guiding the winch rotating frame during rotation, and the guide rail is used for guiding the flexible feeler lever. When the winch works, the winch rotating frame rotates, and the rotation takes the circle center of the rotating frame as an axis.

As an improvement, whole frame includes braced frame, and the braced frame outside is equipped with crashproof grid and crashproof rubber strip, and the top is equipped with hoist and mount frame, and inside is equipped with anticorrosive zinc block.

Compared with the prior art, the invention has the beneficial effects that:

1. compared with the straight rigid probe rod with the whole length, the flexible probe rod directly presses the probe into the surface of the seabed, so that the problems of radial instability and inconvenient operation are caused.

2. Compared with a sectional probe rod mode, the invention needs manual butt joint, has larger operation and labor requirements and is not suitable for deep sea environment. Utilize flexible probe rod to constitute the straight probe rod of rigidity, use the friction pulley motion in opposite directions to pressurize the straight probe rod, the rotation of friction pulley makes the probe rod to the soil body penetration of being surveyed simultaneously, has guaranteed the collimation degree and the penetration pressure that the probe rod needs when penetrating the soil body and surveying, guarantees the stability of static sounding in-process.

Drawings

Fig. 1 is an overall external schematic view of an in-situ multi-parameter detection system for seabed soil provided by the invention.

Fig. 2 is a schematic structural diagram of an in-situ multi-parameter detection system for the seabed soil provided by the invention.

Fig. 3 is a partial schematic view of an in-situ multi-parameter detection system for the seabed soil provided by the invention.

Fig. 4 is a schematic structural diagram of the docking device provided by the present invention.

Fig. 5 is a bottom view of the docking device provided by the present invention.

Fig. 6 is a schematic structural diagram of the collimating mechanism provided by the present invention.

FIG. 7 is a schematic diagram of the drawworks provided by the present invention.

Fig. 8 is a schematic structural view of the rigid rod provided by the present invention.

Fig. 9 is a schematic structural diagram of the female plug provided by the present invention.

Fig. 10 is a schematic structural view of a male plug provided by the present invention.

Wherein: 1-integral frame; 1-a hoisting frame; 1-2-a support frame; 1-3-anti-collision rubber strips; 1-4-anti-collision grating; 2-constant speed penetration system; 2-1-a friction wheel; 2-scaffold; 2-3-hydraulic motor; 2-4-base; 2-5-an accumulator; 2-6-a docking device; 2-7-hydraulic locking oil cylinder; 2-8-a collimating mechanism; 3-hydraulic valve box; 4-an electronic cabin; 5-static sounding probe; 6-a servo motor; 7-driving the rotating wheel; 8, a winch; 8-1-winch rotating frame; 8-2-servo motor; 8-3-wheel; 8-4-guide rail; 8-5-ring teeth; 8-6-gear; 8-7-base; 9-a flexible probe rod; 9-1-male plug; 9-2-rigid rods; 9-3-female head plug; 9-4-jaw; 9-5-a clamp spring; 9-6-gland; 9-7-screws; 10-underwater motor.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings and the embodiment. The following examples are presented to enable those skilled in the art to more fully understand the present invention and are not intended to limit the invention in any way.

As shown in fig. 2, the in-situ multi-parameter detection system for the seabed soil comprises an integral frame, a constant-speed penetration system, a flexible probe rod, a butt joint component system and a static sounding probe.

As shown in figure 1, the integral frame 1 consists of a hoisting frame 1-1, a supporting frame 1-2, an anti-collision rubber strip 1-3 and an anti-collision grid 1-4, is used for supporting, installing and protecting the integral equipment, and can be designed according to actual requirements. In this example, the support frame 1-2 includes support mounting brackets for each mechanism. The hoisting frame 1-1 is welded on the top of the supporting frame 1-2, the inner side of the supporting frame 1-2 is provided with an anti-collision rubber strip 1-3, and the outer side is provided with an anti-collision rubber strip 1-3 and an anti-collision grid 1-4 for protecting equipment.

As shown in figure 3, the constant-speed penetration system comprises a friction wheel 2-1, a support 2-2, a hydraulic motor 2-3, a base 2-4, an energy accumulator 2-5, a butt joint device 2-6, a hydraulic locking oil cylinder 2-7 and a collimation mechanism 2-8. The hydraulic driving system is composed of a hydraulic motor 2-3, a base 2-4, an energy accumulator 2-5 and a hydraulic locking oil cylinder 2-7. The constant-speed penetration system comprises two friction wheels 2-1 symmetrically arranged in the same vertical plane, aligning mechanisms 2-8 are arranged above and below the butt joint of the two friction wheels 2-1, supports 2-2 are arranged on the friction wheels 2-1, hydraulic motors 2-3 are arranged in the supports 2-2, and the hydraulic motors 2-3 are used for driving the friction wheels 2-1 to rotate. The two supports 2-2 are connected through a hydraulic locking oil cylinder 2-7 and used for providing opposite extrusion friction force between the two friction wheels 2-1, the two supports 2-2 are fixedly arranged on the bottom surface in the integral frame 1 through a same base 2-4, an energy accumulator 2-5 is further arranged on the base 2-4 and connected with a hydraulic motor 2-3 to absorb pressure impact generated in a hydraulic system when an execution element suddenly stops moving. The bottom surface in the integral frame 1 is also provided with a hydraulic valve box 3 for providing hydraulic power, a hydraulic pipeline and an underwater motor 10 which are connected with a hydraulic motor 2-3 and a hydraulic locking oil cylinder 2-7.

The butt joint assembly system comprises a winch 8, a butt joint device 2-6 and a driving rotating wheel 7, wherein the winch 8 is fixedly arranged on the bottom surface of the integral frame on the rear side of the friction wheel 2-1, and the driving rotating wheel 7 is arranged on the supporting frame 1-2 and connected with the servo motor 6. As shown in figure 7, the winch rotating frame 8-1 is arranged on a base 8-7, and the inner side of the winch rotating frame is provided with annular teeth 8-5 which are meshed with a gear 8-6 on a servo motor 8-2. The winch rotating frame 8-1 rolls on the rotating wheel 8-3. As shown in fig. 4 and 5, the docking unit is composed of a ring-shaped jaw 2-6-1, a chuck 2-6-2, a driving gear 2-6-3, a driving disk 2-6-4 and a set pin 2-6-5. The chuck 2-6-2 is of a structure similar to a cover, a through hole is formed in the center of the top of the chuck 2-6-2 and used for the rigid probe rod 9-2 to pass through, three grooves which are divergent from the center to the outer edge direction are uniformly formed in the disk surface of the top of the chuck 2-6-2, a plurality of through holes are formed in the side portion of the chuck 2-6-2, and a driving gear 2-6-3 is arranged in each through hole. The grooves are internally provided with claw seats, each claw seat is provided with an annular claw 2-6-1, the opposite sides of the three annular claws 2-6-1 are provided with grains, the annular claws 2-6-1 can clamp the rigid probe rod 9-2 for butt joint, and the annular claws 2-6-1 can open the quick link mechanisms on the probe rods when the rigid probe rods 9-2 at two adjacent ends are dismantled. The driving disc 2-6-4 is arranged inside the lower portion of the chuck 2-6-2, a hole is formed in the center of the driving disc 2-6-4, a thread groove is formed in the side wall of the hole, annular teeth are arranged on the outer edge of the driving disc 2-6-4, an extending portion is arranged downwards of the chuck seat and extends into the hole in the center of the driving disc 2-6-4, threads are arranged on the extending portion and are matched with the thread groove in the hole of the driving disc 2-6-4, and the driving gear 2-6-3 can be connected with a driving mechanism and is meshed with the annular teeth on the side edge of the driving disc 2-6-4. The driving gear 2-6-3 rotates to drive the driving disc 2-6-4 to rotate, and the thread groove on the driving disc 2-6-4 drives the annular clamping jaw 2-6-1 to move. The static sounding probe 5 is arranged at one end of a flexible probe rod 9, one end of the flexible probe rod 9 with the static sounding probe 5 is led out through a guide rail 8-4 and guided by a driving rotating wheel 7, sequentially penetrates through the butting device 2-6 and the aligning mechanism 2-8 and then enters between the two friction wheels 2-1, and finally the static sounding probe 5 is downwards penetrated into a soil body.

As shown in fig. 8, the flexible probe 9 is formed by butting a plurality of sections of rigid rods 9-2, an armored cable is arranged in the flexible probe 9, and two ends of the rigid rods 9-2 are provided with a quick connecting rod structure. As shown in figures 9 and 10, the quick butt joint mechanism comprises a male plug 9-1 and a female plug 9-3, and one end of the male plug 9-1 is provided with a clamping plug. One end of the female head plug 9-3 is provided with a groove, the outer wall of the groove is provided with an annular groove, the groove is embedded with a clamp spring 9-5, the outer edge of the groove is uniformly provided with 3 notches, each notch is provided with a clamping jaw 9-4, the clamping jaws 9-4 are all embedded on the clamp spring 9-5, and the other side of the female head plug 9-3 is connected with a gland 9-6 through screws 9-7. When the male plug 9-1 is in butt joint with the female plug 9-3, the clamping plug of the male plug 9-1 is plugged into the groove of the female plug 9-3, the clamp spring 9-5 provides an inward tightening acting force, the clamping jaw 9-4 is buckled with the clamping plug on the male plug 9-1, and the butt joint of the male plug 9-1 and the female plug 9-2 is realized.

The working process of the invention is as follows:

(1) the flexible feeler lever 9 is connected in series by a plurality of rigid lever pieces 9-2, the flexible feeler lever 9 is wound on the winch 8, one end of the rigid lever piece 9-2 is wound and connected with the driving rotating wheel 7, the other end of the flexible feeler lever 9 bypasses the driving rotating wheel 7 and then passes through the butt joint device 2-6, the butt joint device 2-6 connects the quick butt joint mechanisms between the adjacent flexible feeler levers 9, and the flexible feeler levers 9 are combined into a straight feeler lever.

(2) In the penetration process of the static sounding probe 5, a gear arranged on the servo motor 21 is meshed with the annular teeth 25, when the servo motor 21 rotates, the winch 8 is driven to rotate, and the winch 8 drives the flexible feeler lever 9 to lay. The servo motor 9 drives the driving rotating wheel 10 to rotate, the driving rotating wheel 10 drives the rigid rod pieces to align to the butt joint devices 2-6, the butt joint devices 2-6 butt joint the rigid rod pieces 9-2 at two adjacent ends, and the flexible probe rods 9 are combined into a straight probe rod. The hydraulic locking oil cylinder 2-7 drives the friction wheel 2-1 to move oppositely, so that both sides of the flexible probe rod 9 are tightly attached to the friction wheel 2-1, and the friction wheel 2-1 can be replaced to adapt to the flexible probe rods 9 with different sizes. The hydraulic motor 2-3 drives the friction wheel 2-1 to rotate to drive the flexible probe rod 9, so that the static sounding probe 5 penetrates into a soil body to be detected. The static sounding probe 5 is used for acquiring in-situ multi-parameters such as cone tip resistance, side wall friction, pore water pressure, resistivity and the like in the filling process.

(3) When the static sounding probe 5 is recovered, the hydraulic motor 2-3 rotates reversely to drive the friction wheel 2-1 to drive the flexible feeler lever 9, the static sounding probe 5 is pulled out upwards, meanwhile, the quick butt joint mechanism between the adjacent flexible feeler levers is opened by the butt joint device 2-6, the straight feeler lever is divided into two sections of rigid rod members 9-2, and the rigid rod members 9-2 are wound on the winch 8 after passing through the driving rotating wheel 7.

Finally, it should be noted that the above-mentioned list is only a specific embodiment of the present invention. It is obvious that the present invention is not limited to the above embodiments, but many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.