Steel sheet pile and steel sheet pile cofferdam structure

Abstract

The invention provides a steel sheet pile and a steel sheet pile cofferdam structure, the steel sheet pile comprises a base, a pile body, a movable part and a perpendicularity detection assembly, an elastic deformation sleeve is arranged on the lower portion of the pile body, cavities are formed in the pile body and the elastic deformation sleeve in a communicating mode, and the elastic deformation sleeve can deform inwards when being extruded by external force; the movable part is inserted into the upper part of the cavity in a vertically movable manner; the lower part of the movable part is connected with a sealing gasket; the perpendicularity detection assembly is arranged at the top of the movable part and comprises a rotating rod, a rotating block and a distance measuring sensor, the rotating rod is rotatably connected with the movable part, the first end of the rotating rod protrudes out of the outer side of the movable part, the second end of the rotating rod is connected with the rotating block, and the distance measuring sensor is arranged on the rotating block; the rotating rod can drive the rotating block and the distance measuring sensor to rotate together, so that the distance measuring sensor protrudes out of the side wall of the pile body and can emit detection light downwards; the steel sheet pile cofferdam structure comprises the steel sheet pile. According to the invention, the inclination angle can be detected at any time after fixed construction.

Description

Technical Field

[0001] The invention relates to the technical field of steel cofferdams, and in particular to a steel sheet pile and a steel sheet pile cofferdam structure. Background Art

[0002] A cofferdam is a temporary retaining structure built during the construction of a water conservancy project to build a permanent water conservancy facility. Its function is to prevent water and soil from entering the construction site of the building so that drainage can be drained within the cofferdam, foundation pits can be excavated, and buildings can be built. The cofferdam is generally dismantled after use.

[0003] Steel sheet pile cofferdam is the most commonly used type of cofferdam. The position of the steel sheet piles is prone to tilt during the construction of the steel sheet pile cofferdam. The existing detection device is generally used to detect while constructing, so as to facilitate timely and effective adjustment of the verticality of the steel sheet piles during the construction process. However, after the cofferdam is fixed, it is inconvenient to observe the tilt angle at all times, so the cofferdam is prone to tilt after long-term use. If it is not discovered in time, it is easy to pose a safety hazard. In addition, the existing steel sheet piles are generally set in a U-shape, which is mainly fixed by the clamping structure formed by the soil on both sides. If the soil on one side becomes loose, it is easy to tilt or even collapse. Summary of the invention

[0004] The first object of the present invention is to provide a steel sheet pile whose inclination angle can be detected at any time after fixed construction.

[0005] A second object of the present invention is to provide a steel sheet pile cofferdam structure including the above-mentioned steel sheet piles.

[0006] In order to achieve the above-mentioned first purpose, the present invention provides a steel sheet pile, comprising a base, a pile body, a movable part and a verticality detection assembly, the pile body is arranged on the base, an elastic deformation sleeve is arranged at the lower part of the pile body, a chamber is arranged in communication with the pile body and the elastic deformation sleeve, and the elastic deformation sleeve will deform inward when subjected to external force compression; the movable part can be inserted in the upper part of the chamber so as to be movable up and down, a sealing gasket is arranged at the lower part of the movable part, the sealing gasket is sealed and connected to the cavity wall of the chamber, and the sealing gasket can move relative to the pile body with the movable part; the verticality detection assembly is arranged on the top of the movable part, the verticality detection assembly comprises a rotating rod, a rotating block and a distance measuring sensor, the rotating rod is rotatably connected to the movable part, the first end of the rotating rod protrudes out of the outer side of the movable part, the second end of the rotating rod is connected to the rotating block, the distance measuring sensor is arranged on the rotating block, the rotating rod can drive the rotating block and the distance measuring sensor to rotate relative to the movable part, so that the distance measuring sensor protrudes from the side wall of the pile body and can emit detection light downward.

[0007] It can be seen from the above scheme that by setting the elastic deformation sleeve, when the lower part of the steel sheet pile is buried in the soil, in addition to the soil on both sides forming a clamping structure to fix the steel sheet pile, part of the soil will also squeeze the elastic deformation sleeve inward, and the soil can form a bite structure to bite the steel sheet pile from all sides, which is beneficial to improve the stability and firmness of the steel sheet pile and prevent the steel sheet pile from tilting; by setting the verticality detection component, during the steel sheet pile construction process, the rotating block is located on the top wall of the movable part, which is convenient for the construction of the steel sheet pile. After the steel sheet pile is fixed, the rotating rod is twisted to drive the rotating block and the distance sensor to protrude from the side wall of the pile body, so that the distance sensor can emit detection light vertically downward to detect its vertical distance, and then detect whether the steel sheet pile is tilted, so that the staff can adjust the verticality of the steel sheet pile in a timely and effective manner to avoid safety accidents; when the steel sheet pile needs to be removed, the movable part is pressed down first, and the air pressure in the chamber is used to push the elastic deformation sleeve outward to push the soil of the bite structure outward to reduce the locking force of the steel sheet pile, so as to facilitate the easy removal of the steel sheet pile.

[0008] A further solution is that a positioning assembly is provided between the pile body and the movable part, and the positioning assembly can be detachably connected to the movable part.

[0009] A further solution is that the positioning assembly includes a positioning piece, a first elastic piece, a first insertion hole and a second insertion hole, the first insertion hole passes through the side wall of the pile body, the second insertion hole is arranged on the movable piece, the first insertion hole and the second insertion hole are arranged correspondingly, the first elastic piece elastically abuts between the pile body and the positioning piece, and the two ends of the positioning piece are respectively inserted into the first insertion hole and the second insertion hole.

[0010] It can be seen from the above scheme that through the above arrangement, when the positioning member is inserted into the first insertion hole and the second insertion hole at the same time, the positioning member can limit the upward and downward movement of the movable member, thereby temporarily fixing the position of the movable member; when necessary, the positioning member is pulled outward so that the positioning member is disengaged from the second insertion hole, and the movable member can move up and down at this time.

[0011] A further solution is that at least two first insertion holes are provided, all of which are arranged in an up-and-down direction, and the positioning member can be inserted into any one of the first insertion holes.

[0012] A further solution is that the verticality detection component also includes a telescopic block and a second elastic member; a mounting groove is opened in the rotating block, the first end of the telescopic block is telescopically inserted in the mounting groove, the second elastic member elastically abuts between the mounting groove and the first end of the telescopic block, and the ranging sensor is arranged at the second end of the telescopic block.

[0013] A further solution is that a limit structure is provided on the top wall of the movable part, and the limit structure is detachably connected to the verticality detection component.

[0014] It can be seen from the above scheme that the above arrangement is used to prevent the verticality detection component from accidentally flipping outward during the construction process.

[0015] A further solution is that the limiting structure includes an intercepting portion, which is arranged across the telescopic block, and / or the limiting structure includes a flap, a first end of which is hinged to one side of the movable part, and a second end of the flap can rotate around its first end, so that the flap can cover the rotating block or the telescopic block.

[0016] A further solution is that a support rod is provided in the pile body, the lower part of the support rod is connected to the base, and the upper part of the support rod is inserted in the movable part; the movable part includes a connecting part and two supporting feet, the two supporting feet are connected to the bottom wall of the connecting part in parallel, and the support rod is arranged between the two supporting feet and can abut against the connecting part.

[0017] It can be seen from the above scheme that, through the above arrangement, the support rod can support the movable part to prevent the movable part from falling into the lower part of the chamber, and the support rod can also play a guiding role to ensure that the movable part moves vertically up and down.

[0018] A further solution is that an alarm is provided on the movable part or the pile body, and the alarm can send out a warning message, and the warning message includes at least one of the following: sound, light and vibration; The top wall of the movable part is provided with a battery, which is electrically connected to the distance measuring sensor and the alarm respectively, and the battery is a solar cell, a storage battery or a dry cell.

[0019] In order to achieve the above-mentioned second purpose, the present invention provides a steel sheet pile cofferdam structure, including the above-mentioned steel sheet piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of a first state of a steel sheet pile embodiment of the present invention.

[0021] Figure 2 It is a structural diagram of the second state of the steel sheet pile embodiment of the present invention.

[0022] Figure 3 It is a top view of an embodiment of a steel sheet pile of the present invention.

[0023] Figure 4 yes Figure 3 Cross-sectional view at AA in the middle.

[0024] Figure 5 yes Figure 3 Cross-sectional view at BB in the middle.

[0025] Figure 6 It is a cross-sectional view of the elastic deformation sleeve of the steel sheet pile embodiment of the present invention.

[0026] Figure 7It is a structural diagram of the movable parts and positioning components in the steel sheet pile embodiment of the present invention.

[0027] Figure 8 It is an exploded view of the movable parts, positioning components and vertical detection components in the steel sheet pile embodiment of the present invention.

[0028] Fig. 9 It is a cross-sectional view of a vertical detection assembly in a steel sheet pile embodiment of the present invention.

[0029] Fig.10 It is a structural diagram of an embodiment of a steel sheet pile cofferdam structure of the present invention.

[0030] The present invention is further described below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0031] Steel sheet pile example: See also Figures 1 to 5 , and combined with Figure 8 A steel sheet pile provided in this embodiment includes a base 1, a pile body 2, a movable part 3 and a verticality detection component 4.

[0032] The pile body 2 is arranged on the base 1, and both the base 1 and the pile body 2 are set to be rectangular structures, and the length and width of the pile body 2 are slightly smaller than the length and width of the base 1. When the lower part of the steel sheet pile is buried in the soil, part of the mud will accumulate on the upper surface of the base 1, forming a vertical downward fixing force on the steel sheet pile, which is conducive to providing stability of the steel sheet pile.

[0033] An elastic deformation sleeve 5 is provided at the lower part of the pile body 2, and the elastic deformation sleeve 5 extends around the circumference of the pile body 2. The upper and lower ends of the elastic deformation sleeve 5 are respectively sealed and connected to the pile body 2 and the base 1. A chamber 6 is provided in the pile body 2 and the elastic deformation sleeve 5, and there is gas, preferably air, in the chamber 6. The outer side of the elastic deformation sleeve 5 will deform inward when squeezed by an external force; the inner side of the elastic deformation sleeve 5 will recover its deformation outward when subjected to an applied force, or even deform outward. The elastic deformation sleeve 5 is made of materials such as rubber and silicone.

[0034] The movable part 3 is inserted in the upper part of the chamber 6 so as to be movable up and down. A sealing gasket 37 is arranged at the lower part of the movable part 3 . The sealing gasket 37 is sealedly connected to the cavity wall of the chamber 6 . The sealing gasket 37 can move relative to the pile body 2 together with the movable part 3 .

[0035] The verticality detection assembly 4 is arranged on the top of the movable part 3, and the verticality detection assembly 4 can move synchronously with the movable part 3. The verticality detection assembly 4 includes a rotating rod 41, a rotating block 42 and a distance sensor 43. The rotating rod 41 is rotatably connected to the movable part 3, the first end of the rotating rod 41 protrudes out of the outer side of the movable part 3, the second end of the rotating rod 41 is connected to the rotating block 42, and the distance sensor 43 is arranged on the rotating block 42. The rotating rod 41 can drive the rotating block 42 and the distance sensor 43 to rotate relative to the movable part 3, so that the distance sensor 43 protrudes from the side wall of the pile body 2 and can emit detection light downward. The distance sensor 43 can be a laser distance sensor, an ultrasonic distance sensor, an infrared distance sensor or a radar sensor, and in this example, a laser distance sensor is preferably used.

[0036] The steel sheet piles of this embodiment can be buried in the soil by burying, or inserted into the soil by plugging. At least the lower part of the steel sheet pile can be buried in the soil, and part of the soil will exert an extrusion force on the elastic deformation sleeve 5, causing the elastic deformation sleeve 5 to deform inwardly. The soil can bite the steel sheet pile from all sides of the elastic deformation sleeve 5, which is beneficial to increase the locking force on the steel sheet pile, ensure that the steel sheet pile maintains verticality for a long time, and avoid tilting. In this process, the air pressure in the chamber 6 increases, which can push the movable part 3 upward to rise a preset distance, ensuring that the verticality detection component 4 is exposed to the upper outer side of the pile body 2. When the steel sheet pile needs to be removed, the movable part 3 can be pressed downward first to move it downward. The air pressure in the chamber 6 will force the elastic deformation sleeve 5 to restore the deformation outward, or even expand outward to push away the biting soil, so that the steel sheet pile can be easily removed.

[0037] Combination Figure 5 , Figure 7 and Figure 8 In order to ensure that the movable part 3 can be temporarily fixed in a high position or a low position, a positioning assembly 7 is provided between the pile body 2 and the movable part 3 in this embodiment, and the positioning assembly 7 can be detachably connected to the movable part 3.

[0038] The positioning assembly 7 includes a positioning member 71, a first elastic member 72, a first insertion hole 21 and a second insertion hole 31. The first insertion hole 21 passes through the side wall of the pile body 2, and the second insertion hole 31 is arranged on the movable member 3, and the first insertion hole 21 and the second insertion hole 31 are arranged correspondingly. The first elastic member 72 elastically abuts between the pile body 2 and the positioning member 71, and the two ends of the positioning member 71 are respectively inserted into the first insertion hole 21 and the second insertion hole 31.

[0039] The positioning member 71 is set as a "T"-shaped structure. The positioning member 71 includes a first plug-in portion 711 and a second plug-in portion 712. The width of the second plug-in portion 712 is greater than the width of the first plug-in portion 711. The first plug-in portion 711 is connected to the middle of the second plug-in portion 712. Two step surfaces are formed between the two sides of the first plug-in portion 711 and the second plug-in portion 712. The first plug-in portion 711 is inserted into the first insertion hole 21. The two step surfaces are located on both sides of the first insertion hole 21. The first insertion portion 711 is provided with a through hole. One end of the first elastic member 72 abuts against the step surface, and the other end of the first elastic member 72 abuts against the pile body 2. The first elastic member 72 applies an inward moving force to the positioning member 71, so that the second plug-in portion 712 can be inserted into the second insertion hole 31. When necessary, the positioning member 71 can be pulled outward and a stop rod (not shown) can be inserted into the through hole to limit the positioning member 71 from moving inward, so that the second insertion portion 712 is disengaged from the second insertion hole 31 .

[0040] In this embodiment, at least two first insertion holes 21 are provided, and all the first insertion holes 21 are arranged in an up-and-down direction. The positioning member 71 can be inserted into any one of the first insertion holes 21 .

[0041] Combination Figure 8 and Fig. 9 The verticality detection assembly 4 also includes a telescopic block 44 and a second elastic member 45. A mounting groove 421 is provided in the rotating block 42, and the first end of the telescopic block 44 is telescopically inserted into the mounting groove 421, the second elastic member 45 elastically abuts between the mounting groove 421 and the first end of the telescopic block 44, and the distance sensor 43 is arranged at the second end of the telescopic block 44.

[0042] The top wall of the movable part 3 is provided with a groove 32 and a limiting structure, the rotating block 42 and the telescopic block 44 can be embedded in the groove 32, and the groove walls on both sides of the groove 32 are provided with mounting holes, and the rotating rod 41 is rotatably connected in the mounting holes to drive the rotating block 42 and the telescopic block 44 to rotate. A rotating hand wheel is provided at one end of the rotating rod 41 protruding from the movable part 3 to facilitate the staff to apply force.

[0043] The limiting structure and the verticality detection assembly 4 are detachably connected.

[0044] In one embodiment, the limiting structure includes an intercepting portion 33, and the two ends of the intercepting portion 33 are respectively connected to the two side walls of the groove 32, so that the intercepting portion 33 is arranged above the telescopic block 44, and the intercepting portion 33 can prevent the telescopic block 44 from accidentally turning outward. When necessary, the telescopic portion can be compressed so that the telescopic portion can turn upward from one side of the intercepting portion 33.

[0045] In another embodiment, the limiting structure includes a flap 34, the first end of which is hinged to one side of the movable part 3, and the second end of which can rotate around the first end, so that the flap 34 can cover the rotating block 42 or the telescopic block 44, and the flap 34 is used to prevent the rotating block 42 and the telescopic block 44 from turning upward. A magnet is provided on the flap 34, and the magnet can be magnetically attracted to the top wall of the movable part 3.

[0046] The intercepting portion 33 and the flap 34 may be provided separately or simultaneously.

[0047] An alarm (not shown in the figure) is provided on the movable part 3 or the pile body 2, and the alarm can send out a warning message, and the warning message includes at least one of the following: sound, light and vibration. When the verticality detection component 4 detects that the steel sheet pile is tilted, the alarm can send out a warning message in time to remind the staff to adjust the verticality of the steel sheet pile in time.

[0048] The top wall of the movable part 3 is provided with a battery 8, which is electrically connected to the distance sensor 43 and the alarm respectively, and is used to supply power to the distance sensor 43 and the alarm. The battery 8 is a solar cell, a storage battery or a dry cell.

[0049] Combination Figure 4 and Figure 5 A support rod 9 is provided in the pile body 2, and the horizontal cross-section of the support rod 9 is set to be rectangular. The lower part of the support rod 9 is connected to the base 1, and two opposite sides of the support rod 9 are fixedly connected to the inner wall of the pile body 2, which is conducive to providing the structural strength of the pile body 2; two channels 61 are formed between the other two opposite sides of the support rod 9 and the inner wall of the pile body 2, and the channels 61 are connected to the chamber 6. The support rod 9 is provided with a plurality of connecting holes 91, and the two ends of the connecting holes 91 are respectively connected to the two channels 61 to maintain the air pressure balance of the two channels 61, and the plurality of connecting holes 91 are arranged along the extension direction of the support rod 9. The upper part of the support rod 9 is inserted into the movable part 3.

[0050] The movable member 3 includes a connecting portion 35 and two supporting legs 36 . The two supporting legs 36 are connected to the bottom wall of the connecting portion 35 in parallel. The supporting rod 9 is disposed between the two supporting legs 36 and can abut against the connecting portion 35 .

[0051] The number of the sealing pads 37 is set to two, and the two sealing pads 37 are respectively connected to the bottoms of the two supporting legs 36. The sealing pads 37 are sealed and connected to the inner wall of the pile body 2 and the surface of the supporting rod 9.

[0052] exist Figure 6In the embodiment, the lower part of the pile body 2 is fixedly connected to the base 1 through a plurality of connecting columns 22. In this embodiment, four connecting columns 22 are taken as an example. The four connecting columns 22 are respectively arranged on the four corners of the pile body 2, and the elastic deformation sleeve 5 is sleeved on the outside of the four connecting columns 22, or the elastic deformation sleeve 5 is arranged on the inner side of the four connecting columns 22. A cavity is formed between two adjacent connecting columns 22, and sufficient space is reserved for the soil to squeeze the elastic deformation sleeve 5. The horizontal cross-sectional shape of the connecting column 22 can be circular or rectangular, which is not limited here.

[0053] Steel sheet pile cofferdam structure example: See also Fig.10 The steel sheet pile cofferdam structure provided in this embodiment includes the steel sheet piles of the above-mentioned embodiment. The number of steel sheet piles is set to multiple, and the multiple steel sheet piles can be closely arranged along a preset straight line, or the multiple steel sheet piles can be arranged at intervals along a preset straight line, and other supporting structures or existing buildings can be arranged between two adjacent steel sheet piles.

[0054] In summary, it can be seen that the present invention provides an elastic deformation sleeve 5. When the lower part of the steel sheet pile is buried in the soil, in addition to the soil on both sides forming a clamping structure to fix the steel sheet pile, part of the soil will also squeeze the elastic deformation sleeve 5 inward. The soil can form a bite structure to bite the steel sheet pile from all sides, which is beneficial to improve the stability and firmness of the steel sheet pile and prevent the steel sheet pile from tilting. By providing a verticality detection component 4, during the steel sheet pile construction process, the rotating block 42 is located on the top wall of the movable part 3, which facilitates the construction of the steel sheet pile. When the steel sheet pile is fixed, the construction is completed. , twist the rotating rod 41, drive the rotating block 42 and the distance sensor 43 to protrude from the side wall of the pile body 2, so that the distance sensor 43 can emit detection light vertically downward to detect its vertical distance, and then detect whether the steel sheet pile is tilted, so that the staff can adjust the verticality of the steel sheet pile in a timely and effective manner to avoid safety accidents; when the steel sheet pile needs to be removed, first press down the movable part 3, and use the air pressure in the chamber 6 to push the elastic deformation sleeve 5 outward to push the soil of the bite structure outward to reduce the locking force of the steel sheet pile, so as to facilitate the easy removal of the steel sheet pile.

[0055] Finally, it should be emphasized that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A steel sheet pile, characterized in that: include: Base; A pile body, wherein the pile body is arranged on the base, an elastic deformation sleeve is arranged at the lower part of the pile body, a chamber is arranged in the pile body and the elastic deformation sleeve in communication, and the elastic deformation sleeve will deform inwards when squeezed by an external force; A movable part, the movable part is inserted in the upper part of the chamber so as to be movable up and down, a sealing gasket is arranged at the lower part of the movable part, the sealing gasket is sealedly connected with the cavity wall of the chamber, and the sealing gasket can move relative to the pile body together with the movable part; A verticality detection component is arranged on the top of the movable part, and the verticality detection component includes a rotating rod, a rotating block and a distance measuring sensor. The rotating rod is rotatably connected to the movable part, the first end of the rotating rod protrudes out of the outside of the movable part, the second end of the rotating rod is connected to the rotating block, and the distance measuring sensor is arranged on the rotating block. The rotating rod can drive the rotating block and the distance measuring sensor to rotate relative to the movable part, so that the distance measuring sensor protrudes from the side wall of the pile body and can emit detection light downward.

2. The steel sheet pile according to claim 1, characterized in that: A positioning assembly is arranged between the pile body and the movable part, and the positioning assembly can be detachably connected to the movable part.

3. The steel sheet pile according to claim 2, characterized in that: The positioning assembly includes a positioning member, a first elastic member, a first insertion hole and a second insertion hole, the first insertion hole passes through the side wall of the pile body, the second insertion hole is arranged on the movable member, the first insertion hole and the second insertion hole are arranged correspondingly, the first elastic member elastically abuts between the pile body and the positioning member, and the two ends of the positioning member are respectively inserted into the first insertion hole and the second insertion hole.

4. The steel sheet pile according to claim 3, characterized in that: At least two of the first insertion holes are provided, and all of the first insertion holes are arranged in an up-down direction. The positioning member can be inserted into any one of the first insertion holes.

5. The steel sheet pile according to claim 1, characterized in that: The verticality detection assembly also includes a telescopic block and a second elastic member; The rotating block is provided with a mounting groove, the first end of the telescopic block is telescopically inserted into the mounting groove, the second elastic member is elastically abutted between the mounting groove and the first end of the telescopic block, and the distance measuring sensor is arranged at the second end of the telescopic block.

6. The steel sheet pile according to claim 5, characterized in that: A limit structure is disposed on the top wall of the movable part, and the limit structure is detachably connected to the verticality detection assembly.

7. The steel sheet pile according to claim 6, characterized in that: The limiting structure includes an intercepting portion, which is arranged across the telescopic block, and / or the limiting structure includes a flap, a first end of which is hinged on one side of the movable part, and a second end of the flap can rotate around its first end, so that the flap can cover the rotating block or the telescopic block.

8. The steel sheet pile according to claim 1, characterized in that: A support rod is provided in the pile body, the lower part of the support rod is connected to the base, and the upper part of the support rod is inserted into the movable part; The movable part comprises a connecting part and two supporting legs, the two supporting legs are connected to the bottom wall of the connecting part in parallel, and the supporting rod is arranged between the two supporting legs and can abut against the connecting part.

9. The steel sheet pile according to claim 1, characterized in that: An alarm is provided on the movable part or the pile body, and the alarm can send out a warning message, and the warning message includes at least one of the following: sound, light and vibration; A battery is arranged on the top wall of the movable part. The battery is electrically connected to the distance measuring sensor and the alarm respectively. The battery is a solar cell, a storage battery or a dry cell.

10. Steel sheet pile cofferdam structure, characterized in that: The steel sheet pile comprises the steel sheet pile according to any one of claims 1 to 9.

Images