CN210216474U

CN210216474U - Adjustable steel sheet pile supporting construction

Info

Publication number: CN210216474U
Application number: CN201920980757.XU
Authority: CN
Inventors: Ping Lei; 雷平; Wenyi Zhao; 赵文意; Qiang Huang; 黄强
Original assignee: Dongguan Broad Canal Construction Engineering Co Ltd
Current assignee: Dongguan Broad Canal Construction Engineering Co Ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-03-31
Anticipated expiration: 2029-06-25

Abstract

The utility model discloses an adjustable steel sheet pile supporting construction, its technical scheme main points are: include the rectangle cofferdam that is formed by a plurality of steel sheet pile reciprocal anchorage, the four corners slope of cofferdam is equipped with the steel internal stay that is used for supporting two adjacent faces in cofferdam, it is provided with the support of L shape to lie in the steel support both ends on the cofferdam, the both ends of supporting in the steel slide along support limit direction and connect on the both sides of support, be equipped with the adjustment mechanism who is used for adjusting steel internal stay inclination on the support, be equipped with the fixed establishment who is used for fixed steel internal stay inclination on the support, two adjacent faces in the cofferdam of perpendicular to simultaneously in support place plane. The user makes the both ends of steel internal stay slide and inclination changes along support limit direction through adjustment mechanism, and the inclination that rethread fixed establishment made the steel internal stay is fixed, realizes the control of the adjustable support force of two adjacent faces in cofferdam, adapts to the support demand of the not equidimension power of the soil layer that the different faces in cofferdam received.

Description

Adjustable steel sheet pile supporting construction

Technical Field

The utility model relates to a steel sheet pile supporting construction, more specifically say, it relates to adjustable steel sheet pile supporting construction.

Background

The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation. The deep foundation pit refers to a foundation pit with a particularly complicated geological condition, surrounding environment and underground pipelines although the excavation depth exceeds 5 meters (including 5 meters) or the excavation depth is not more than 5 days. In order to ensure the safety of the construction of the underground structure and the surrounding environment of the foundation pit, a deep foundation pit support is arranged on the side wall and the periphery of the deep foundation pit and is grown in the deep foundation pit, and the deep foundation pit support is used as a measure for reinforcing and protecting the deep foundation pit. The deep foundation pit support is supported by steel sheet piles, and the steel sheet pile support has the advantages of high strength, good waterproof performance, low cost and repeated use, but the steel sheet piles are often required to be matched with steel inner supports due to weak bending resistance.

The utility model discloses a controllable steel sheet pile foundation ditch supporting construction who warp has been published in the utility model patent document that the bulletin number is CN201820506896, including the steel sheet pile that bilateral symmetry set up, locate the waist rail on the steel sheet pile, locate the support steel between the steel sheet pile of both sides and locate the support stop device at this support steel both ends, support stop device and be connected with the steel sheet pile through the waist rail, the support steel includes the steel pipe and locates the circular steel pipe of cavity at this steel pipe both ends, supports stop device including the channel-section steel that is used for the joint support steel tip and run through circular steel pipe and connect the bolt of channel-section steel and waist rail. The foundation pit supporting structure is horizontally displaced and fixed through the supporting and limiting device, so that the distance between the foundation pit supporting structures is adjusted, and the deformation requirements of different foundation pits are met.

However, in the above structure, the stress on the four side surfaces of most of the foundation pits is not uniform, the support abutting against the opposite side surface cannot prevent the adjacent surface of the foundation pit from inclining due to unbalanced stress, and the steel supports which are arranged in an inclined manner and fixed on the adjacent surface at two ends are usually welded on the cofferdam for supporting the adjacent surface. Along with excavation of the foundation pit, the pressure of the soil layer on the adjacent surface of the foundation pit can be changed along with various reasons such as underground water seepage or soil layer loosening, the inclination angle of the steel support cannot be adjusted at the moment, the supporting force on the adjacent surface cannot be changed in a targeted manner, and the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model aims at providing an adjustable steel sheet pile supporting construction can adjust the steel internal stay that the slant set up, adapts to different foundation ditch reinforcement demands.

The above technical purpose of the present invention can be achieved by the following technical solutions: adjustable steel sheet pile supporting construction includes the rectangle cofferdam that forms by a plurality of steel sheet pile reciprocal anchorage, the four corners slope of cofferdam is equipped with the steel internal stay that is used for supporting two adjacent faces of cofferdam, it is provided with the support of L shape to lie in the steel support both ends on the cofferdam, the both ends of steel internal stay are slided along support limit direction and are connected on the both sides of support, be equipped with the adjustment mechanism who is used for adjusting steel internal stay inclination on the support, be equipped with the fixed establishment who is used for fixed steel internal stay inclination on the support, the plane of support place is perpendicular to two adjacent faces of cofferdam simultaneously.

Through adopting above-mentioned technical scheme, the user makes the both ends of propping in the steel slide and inclination changes along support limit direction through adjustment mechanism, and rethread fixed establishment makes the inclination of propping in the steel fixed, realizes the adjustable supporting force control to two adjacent faces in cofferdam, adapts to the support demand of the not equidimension power of soil layer that the different faces in cofferdam received.

Preferably, the adjusting mechanism comprises a sliding block rotatably connected with the end part of the steel inner support, the sliding block is in threaded connection with screws parallel to the edge of the support, the screws are two and perpendicular to each other, a fixing block is rotatably connected onto the screws and fixed on the support, and a driving part for driving the screws to rotate is arranged on the screws.

Through adopting above-mentioned technical scheme, the user passes through the drive assembly drive screw rod and rotates for the sliding block slides along screw rod axis direction, drives the tip of propping in the steel and the interval between the relative cofferdam face changes, thereby changes the inclination of propping in the steel, and it is convenient to adjust.

Preferably, the driving part comprises bevel gears fixed to ends of the screw rods adjacent to each other, the bevel gears being engaged with each other, and a rotation knob fixed to one end of the screw rod for driving the screw rod to rotate.

Through adopting above-mentioned technical scheme, the user rotates and rotates one of them screw rod of handle drive and rotates, drives another screw rod through helical gear meshing transmission and rotates to remove the inconvenience of adjusting two screw rod rotation angles respectively, guarantee that the steel internal stay forms the triangle-shaped structure and does not block diely, convenient regulation all the time with the support.

Preferably, the fixing mechanism comprises a locking block connected to one end of the support in a sliding mode along the side direction of the support, threads meshed with the screw and self-locked are arranged on the top face, close to the screw, of the locking block, a handle used for driving the locking block to slide towards the screw is arranged on the side face of the locking block, and an elastic piece used for driving the locking block to be meshed with the screw is fixed on the support.

By adopting the technical scheme, a user pulls the handle to drive the locking block to move away from the screw rod, the locking block is loosened after the rotation angle of the screw rod is adjusted in forward rotation, the locking block is in self-locking engagement with the screw rod under the driving of the elastic force of the elastic piece, the rotation angle of the screw rod is fixed, and the supporting force for two adjacent surfaces of the cofferdam is guaranteed to be a stable fixed value.

Preferably, the locking block is provided with a positioning hole in the vertical direction, the support is connected with a positioning rod in the vertical direction above the locking block in a sliding manner, and the elastic part is in a compressed state when the positioning rod extends into the positioning hole.

Through adopting above-mentioned technical scheme, user's locating lever that slides to the locating lever stretch into the locating hole when the latch segment not with screw rod auto-lock meshing, restricts the sliding of latch segment along the screw rod axis direction, extracts the locating lever after finishing the steel internal stay inclination when the adjustment, lets the latch segment under the promotion of elastic component elasticity with screw rod auto-lock meshing to convenient fixed steel internal stay inclination.

Preferably, a reinforcing plate is arranged on one surface, attached to the cofferdam, of the support, and a water absorbing layer is arranged on one surface, attached to the cofferdam, of the reinforcing plate.

Through adopting above-mentioned technical scheme, the gusset can effectively strengthen the support intensity of support, further avoids the cofferdam adjacent surface to receive the soil layer extrusion and warp simultaneously, and the layer that absorbs water can adsorb the steam on the cofferdam adjacent surface when the soil layer oozes water pressure extrusion cofferdam adjacent surface, avoids cofferdam or steel internal stay to rust, and then intensity reduction and take place deformation, reduces the potential safety hazard.

Preferably, one end of the screw rod is detachably connected with a servo motor.

Through adopting above-mentioned technical scheme, rotate through servo motor drive screw when needs change screw rod rotation angle, adjust and finish and pull down servo motor to use manpower sparingly, convenient regulation steel internal stay inclination.

Preferably, a protective baffle is detachably fixed on the support along the horizontal plane and is arranged above the screw rod.

Through adopting above-mentioned technical scheme, guard flap can avoid rainwater and fall thing impact screw rod and steel internal stay, avoids damaging, effectively prolongs the life of steel internal stay.

To sum up, the utility model discloses following beneficial effect has:

1. the steel inner support can adjust the support inclination angle and is used for supporting two adjacent surfaces of the cofferdam;

2. convenient to use and long service life.

Drawings

Fig. 1 is an overall view of this embodiment (without the protective shield).

Fig. 2 is an overall view of this embodiment (without cofferdam included).

Fig. 3 is a cross-sectional view of the embodiment for a locking block.

In the figure: 1. cofferdam; 2. steel inner bracing; 21. a sliding block; 22. a screw; 221. a bevel gear; 222. rotating the handle; 23. a fixed block; 3. A support; 31. a locking block; 311. a handle; 312. positioning holes; 313. positioning a rod; 314. an elastic member; 32. a reinforcing plate; 321. a water-absorbing layer; 4. a servo motor; 5. and a protective baffle.

Detailed Description

The present invention will be described in further detail with reference to the accompanying fig. 1-3.

Referring to fig. 1 and 2, adjustable steel sheet pile supporting construction, including a plurality of steel sheet piles, mutual lock is fixed between the steel sheet pile, and a plurality of steel sheet piles form rectangle cofferdam 1, and the four corners slope of cofferdam 1 is equipped with steel internal stay 2, and cofferdam 1 is located steel internal stay 2 department and is provided with support 3, and support 3 cross-sectional shape is L shape. The two ends of the steel inner support 2 are connected to the two ends of the support 3 in a sliding mode, a triangular structure is formed by the steel inner support and the support 3, and the plane where the support 3 is located is perpendicular to two adjacent faces of the cofferdam 1. Be equipped with adjustment mechanism on the support 3 and supply the user to adjust the inclination of the steel internal stay 2, still be equipped with the inclination that fixed establishment supplied the fixed steel internal stay 2 of user on the support 3 to the realization is to the different holding power of 1 two proximal surfaces in cofferdam, satisfies 1 two proximal surfaces in cofferdam in the in-service use process and receives the different support demands that the different power of soil layer extrusion produced. The support 3 is riveted and fixed on the cofferdam 1 through rivets, the steel inner support 2 can be installed or removed as long as the rivets are installed or removed, the steel inner support 2 can be conveniently reused, and the complex welding process is omitted.

Referring to fig. 2, the adjusting mechanism includes a sliding block 21 rotatably connected to the end of the steel inner support 2, two screws 22 are arranged on the bracket 3 along the side direction of the bracket 3, the two screws 22 are perpendicular to each other, and the sliding block 21 is in threaded connection with the corresponding screw 22. The screw rods 22 are rotatably connected with fixing blocks 23, the number of the fixing blocks 23 is four, two fixing blocks are arranged in a group corresponding to one screw rod 22, and the fixing blocks 23 are fixed on the corresponding side of the support 3. The screw 22 is provided with a driving part for a user to rotate the two screws 22 and drive the sliding block 21 to slide along the axis of the screw 22, so that the inclination angle of the steel inner support 2 is changed, and the size of the supporting force for two adjacent surfaces of the cofferdam 1 is adjusted.

Referring to fig. 2, the driving means includes bevel gears 221 fixed to ends of the screw rods 22 adjacent to each other, the bevel gears 221 of the two screw rods 22 are engaged with each other so that rotation between the screw rods 22 is transmitted, and a rotating handle 222 is fixed to one end of the screw rod 22 for a user to rock. As long as the user's rocking handle rotates handle 222 and just can drive screw rod 22 rotatory, make two screw rods 22 rotate simultaneously through bevel gear 221 meshing transmission, avoid the dead phenomenon of card that produces because of steel internal stay 2 length is fixed when adjusting two screw rods 22 alone, convenient adjustment steel internal stay 2 inclination.

Referring to fig. 2 and 3, the fixing mechanism includes a locking block 31 slidably connected to one side of the bracket 3, and a sliding groove is formed in the bracket 3 along a direction perpendicular to the axis of the screw 22, and the sliding groove is slidably connected to the locking block 31. The surface of the locking block 31 close to the screw rod 22 is provided with a thread which is meshed with the screw rod 22 and is self-locked, the locking block 31 is provided with a handle 311 for a user to drive the locking block 31 to slide along a sliding groove, one end of the sliding groove far away from the screw rod 22 is fixed with an elastic part 314, the other end of the elastic part 314 is fixed with the locking block 31, and the elastic part 314 is a spring. When a user needs to rotate the screw 22 to adjust the inclination angle of the steel inner support 2, the locking block 31 is enabled to slide away from the screw 22 through the handle 311, the screw 22 is normally rotated to a specified angle by rotating the handle 222, the handle 311 is loosened to enable the locking block 31 to be automatically meshed with the screw 22 in a self-locking mode under the driving of the elastic part 314, the rotation angle of the screw 22 is fixed, and the stability of the supporting force on the two adjacent surfaces of the cofferdam 1 is guaranteed.

Referring to fig. 2, in order to save labor when adjusting the inclination angle of the steel inner stay 2, a servo motor 4 is detachably connected to one end of the screw rod 22. When the adjustment is to the holding power of cofferdam 1 different faces, can be rotatory through servo motor 4 drive screw 22, after the adjustment finishes fixing screw 22 through fixed establishment, dismantle down servo motor 4 can, increased the convenient to use nature of propping 2 in the steel.

Referring to fig. 3, in order to fix the locking block 31 at the sliding starting point, the locking block 31 is provided with a positioning hole 312, a positioning rod 313 is connected to the support 3 at the displacement starting point of the locking block 31 corresponding to the positioning hole 312 in a sliding manner, the axis of the positioning rod 313 coincides with the axis of the positioning hole 312, when the user drives the locking block 31 to the displacement starting point by overcoming the elastic force of the elastic member 314 through the handle 311, the positioning rod 313 is inserted into the positioning hole 312 to fix the locking block 31, the user is prevented from holding the locking block 31 all the time during the angle adjustment process, and the use is convenient.

Refer to fig. 2, deformation does not take place because of the soil layer extrusion for the adjacent surface of further assurance cofferdam 1, be fixed with reinforcing plate 32 in the one side of support 3 and the 1 laminating in cofferdam, increase support 3's intensity, play the effect of further supporting 1 adjacent surface in cofferdam with the right angle adjacent side laminating cofferdam 1 of support 3, be equipped with layer 321 that absorbs water simultaneously in the one side of reinforcing plate 32 laminating cofferdam 1, be used for absorbing the steam on 1 adjacent surface in cofferdam when the 1 adjacent surface in soil layer infiltration pressure extrusion cofferdam, avoid 1 or the steel internal stay 2 of cofferdam to rust, and then intensity reduces and takes place deformation, constitute the potential safety hazard.

Referring to fig. 2, in order to prevent the steel inner support 2 and the screw rod 22 from rusting due to rainfall in a rainy day, a protective baffle 5 is fixed on the bracket 3 along the horizontal plane direction through screws, the protective baffle 5 shields the steel inner support 2 and the screw rod 22, and the steel inner support 2 can be prevented from being damaged by falling objects while keeping off rain in the rainy day, so that the service life of the steel inner support 2 is prolonged.

The specific implementation process comprises the following steps: drive locking block 31 through handle 311 and keep away from screw rod 22 along the direction of perpendicular to screw rod 22 and slide, positioning rod 313 slides again, insert positioning rod 313 into fixed locking block 31 in locating hole 312, rotate screw rod 22 through rotating handle 222, two screw rods 22 rotate simultaneously under the meshing of bevel gear 221, sliding block 21 drives the tip of steel internal stay 2 and slides, make the inclination of steel internal stay 2 change, extract positioning rod 313 and let locking block 31 under the drive of elastic component 314 with screw rod 22 auto-lock meshing, set screw rod 22 rotation angle, fixed steel internal stay 2 inclination, realize the holding power on the two adjacent sides of stable change cofferdam 1.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. Adjustable steel sheet pile supporting construction includes rectangle cofferdam (1) that forms by a plurality of steel sheet pile reciprocal anchorage, its characterized in that: the steel inner support for the cofferdam is characterized in that four corners of the cofferdam (1) are obliquely provided with steel inner supports (2) used for supporting two adjacent faces of the cofferdam (1), supports (3) which are L-shaped are arranged at two ends of the cofferdam (1), two ends of each steel inner support (2) are connected to two sides of each support (3) in a sliding mode along the edge direction of each support (3), an adjusting mechanism used for adjusting the inclination angle of each steel inner support (2) is arranged on each support (3), a fixing mechanism used for fixing the inclination angle of each steel inner support (2) is arranged on each support (3), and the plane of each support (3) is perpendicular to the two adjacent faces of the cofferdam (1) at the same time.

2. The adjustable steel sheet pile supporting structure according to claim 1, wherein: adjustment mechanism include with the steel internal stay (2) tip swivelling joint's of tip sliding block (21), sliding block (21) threaded connection has screw rod (22) that are on a parallel with support (3) limit, the quantity of screw rod (22) is two and mutually perpendicular setting, swivelling joint has fixed block (23) on screw rod (22), fixed block (23) are fixed on support (3), be equipped with on screw rod (22) and be used for driving screw rod (22) pivoted driver part.

3. The adjustable steel sheet pile supporting structure according to claim 2, wherein: the driving part comprises bevel gears (221) fixed at the ends, close to each other, of the screw rods (22), the bevel gears (221) are meshed with each other, and a rotating handle (222) for driving the screw rods (22) to rotate is fixed at one end of each screw rod (22).

4. The adjustable steel sheet pile supporting structure according to claim 3, wherein: fixed establishment includes along perpendicular to screw rod (22) direction sliding connection latch segment (31) on support (3), latch segment (31) are close to be equipped with on the top surface of screw rod (22) with screw rod (22) meshing and the screw thread of auto-lock, be equipped with on the side of latch segment (31) and be used for driving handle (311) that latch segment (31) slided towards screw rod (22), be fixed with on support (3) and be used for driving elastic component (314) of latch segment (31) and screw rod (22) meshing.

5. The adjustable steel sheet pile supporting structure according to claim 4, wherein: the support (3) is located beside the locking block (31) and is connected with a positioning rod (313) in a sliding mode in a direction parallel to the screw rod (22), a positioning hole (312) is formed in the locking block (31) in a direction parallel to the screw rod (22), and the elastic part (314) is in a compression state when the positioning rod (313) extends into the positioning hole (312).

6. The adjustable steel sheet pile supporting structure according to claim 5, wherein: and a reinforcing plate (32) is arranged on one surface of the support (3) attached to the cofferdam (1), and a water absorbing layer (321) is arranged on one surface of the reinforcing plate (32) attached to the cofferdam (1).

7. The adjustable steel sheet pile supporting structure according to claim 3 or 6, wherein: one end of the screw rod (22) is detachably connected with a servo motor (4).

8. The adjustable steel sheet pile supporting construction according to claim 7, wherein: the support (3) is provided with a protective baffle (5) along the horizontal plane in a detachable manner, and the protective baffle (5) is arranged above the screw rod (22).