CN111101524B - Temporary supporting structure for foundation pit construction and temporary supporting construction method - Google Patents
Temporary supporting structure for foundation pit construction and temporary supporting construction method Download PDFInfo
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- CN111101524B CN111101524B CN202010053137.9A CN202010053137A CN111101524B CN 111101524 B CN111101524 B CN 111101524B CN 202010053137 A CN202010053137 A CN 202010053137A CN 111101524 B CN111101524 B CN 111101524B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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Abstract
The invention relates to a temporary supporting structure for foundation pit construction and a temporary supporting construction method, which comprise pile columns, inclined supporting piles, inclined supporting mechanisms, limiting mechanisms and retaining plates, wherein the pile columns are uniformly distributed from front to back, the front side and the rear side of each pile column are respectively provided with a square chute, the inner wall of the upper end of each square chute is provided with a square hole, the right side of each pile column is uniformly distributed with one inclined supporting pile, the inclined supporting mechanisms are connected between the pile columns and the inclined supporting piles, the inner side surfaces of two adjacent pile columns are respectively connected with one limiting mechanism, and the left side of each limiting mechanism is uniformly distributed with one retaining plate. The invention can solve the problems existing in the construction of the existing temporary retaining wall: the existing pile column mostly adopts a wood pile column, the wood pile column cannot be recycled, and the angle of the pile column cannot be limited when the pile column is inserted, so that a retaining plate cannot be attached to the inner side surface of the pile column, and the problem that the supporting effect of a supporting structure is poor is caused.
Description
Technical Field
The invention relates to the field of building construction, in particular to a temporary supporting structure for foundation pit construction and a temporary supporting construction method.
Background
Put the foundation ditch of slope excavation, when partial section put the slope width not enough, can adopt simple and easy supporting methods such as temporary retaining wall support to carry out foundation construction, temporary retaining wall need be earlier along the foundation ditch edge when the construction and is established the post stake, prop at the inboard retaining plate of establishing of post stake and carry out the side with the bracing, the setting of temporary retaining wall is accomplished the back and is tamped the inboard filling soil of retaining plate, and temporary retaining wall mainly is applicable to the little large-scale foundation ditch of degree of depth.
The problem that current temporary retaining wall exists when the construction as follows: 1. the existing pile mostly adopts a wood pile, and the wood pile can be damaged to a certain extent after being used, so that the pile cannot be recycled, and the angle of the pile cannot be limited when the pile is inserted, so that a retaining plate cannot be attached to the inner side surface of the pile, and the supporting effect of a supporting structure is poor;
2. the piles are typically connected by steel wire ties, which can result in poor integrity and aesthetics of the support structure.
Disclosure of Invention
In order to solve the problems, the invention provides a temporary supporting structure for foundation pit construction, which comprises pile columns, inclined supporting piles, an inclined supporting mechanism, a limiting mechanism and a retaining plate, wherein the pile columns are uniformly distributed from front to back, the lower ends of the pile columns are of a pointed structure, a T-shaped groove is formed in the right side surface of the middle part of each pile column, a square notch is formed in the lower end of the T-shaped groove, a square sliding groove is formed in each of the front side surface and the back side surface of each pile column, a square hole is formed in the inner wall of the upper end of each square sliding groove, an inclined supporting pile is uniformly distributed on the right side of each pile column, the length of each inclined supporting pile is smaller than that of each pile column, the lower ends of the inclined supporting piles are of the pointed structure, the inclined supporting mechanism is connected between the pile columns and the inclined supporting piles, the limiting mechanism is connected between the inner side surfaces of two adjacent pile columns, and the retaining plate is uniformly distributed on the, firstly, the inclined support pile is hammered and inserted into a proper position on the ground, then the inclined support mechanism is installed on the inclined support pile, then the pile is placed on the left side of the inclined support pile, the pile is hammered into the ground through the pile driver, the inclined support mechanism can limit the downward movement of the pile, after the insertion of the pile is finished, the limiting mechanism is locked at the rear end of the inserted pile, then the insertion and placement action is carried out on the adjacent pile at the rear end of the pile, the limiting mechanism can limit the insertion and placement height of the adjacent pile at the rear end, the piles are positioned at the same height, and the piles can be positioned at the same angle under the limiting action of the inclined support mechanism, so that the retaining plate can be attached to the left side surface of the pile, and each pile can bear the same pressure, thereby increasing the stability of the soil retaining device.
The inclined support mechanism comprises an inclined support seat, an inclined support rod, a locking bolt, a sliding frame, a pressing plate, a pressing support plate and a pressing bolt, the inclined support seat is installed on the left side face of the inclined support pile, the inclined support seat is of a square-shaped structure, the right end of the inclined support rod is inserted into the square-shaped structure of the inclined support seat, round holes are formed in the right end of the inclined support rod and the middle of the inclined support seat, the locking bolt penetrates through the round holes in the inclined support rod and the inclined support seat, the locking bolt is locked on the inclined support seat through a nut, and the middle of the inclined support rod is of an inclined;
a sliding frame with an L-shaped structure is arranged at the left end of the inclined supporting rod, a T-shaped sliding block which is in sliding fit with the T-shaped groove is arranged on the left side surface of the sliding frame, a pressing plate is distributed above the sliding frame, the upper side surface of the pressing plate is connected with the lower end of a pressing bolt through a bearing, the middle part of the pressing bolt is connected with a pressing support plate through a thread fit mode, the pressing support plate is arranged on the right side surface of the pile column, and the pressing support plate is positioned above the T-shaped groove, when in specific work, the inclined support mechanism can position the insertion and placement of the pile, the right end of the inclined support rod can be locked on the inclined support seat, the T-shaped slide block on the sliding frame is matched with the T-shaped groove to limit the insertion and placement position of the pile so as to prevent the insertion and placement position of the pile from deflecting, after the pile is inserted and placed, the pressing support plate can be pressed on the upper side face of the sliding frame by rotating the pressing bolt, and therefore the supporting effect of the inclined supporting rod on the pile is improved.
The limiting mechanism comprises limiting columns, limiting rotating rods, connecting columns, square blocks, limiting insertion frames and limiting springs, the limiting columns are located between the inner side surfaces of the two pile columns, screw holes are formed in the front side surface and the rear side surface of each limiting column, each screw hole in each limiting column is connected with the inner end of one limiting rotating rod in a threaded fit mode, the connecting columns are installed on the outer ends of the limiting rotating rods through bearings, the square blocks are installed on the outer side surfaces of the connecting columns, and the square blocks are connected in square sliding chutes in a sliding fit mode;
the middle part of the connecting column is provided with an L-shaped groove, the outer end of the L-shaped groove penetrates through a square block, the inner end of the L-shaped groove penetrates through the right end face of the connecting column, a limiting insertion frame is distributed in the L-shaped groove and is of an L-shaped structure, the outer end of the limiting insertion frame is positioned in a square hole formed in a square sliding groove, the middle part of the inner end of the limiting insertion frame is installed on the inner side wall of the L-shaped groove through a limiting spring, the right side of the inner end of the limiting insertion frame penetrates through the connecting column, in the specific working process, a limiting mechanism can support two adjacent pile columns to increase the integrity between the pile columns, after the pile columns at the front end are inserted and placed, the position of the connecting column can be adjusted by rotating a limiting rotating rod, so that the square block can be positioned in the square sliding groove, at the moment, the limiting insertion frame can be inserted into the square hole formed in the square sliding groove, then, after the pile at the rear end is inserted in place, the limiting insertion frame at the rear end of the limiting mechanism can be locked on the pile at the rear end, so that the inserting height of the pile at the rear end is limited.
As a preferred technical scheme of the invention, the front side and the rear side of each pile are respectively provided with a limiting clamping frame, the limiting clamping frames are of an L-shaped structure, the lower side surfaces of the limiting clamping frames are arc-shaped surfaces, the lower ends of the limiting clamping frames are clamped at the upper ends of the connecting columns, and the limiting clamping frames can abut against the upper ends of the connecting columns to increase the limiting effect of the pile height limiting device on the pile height, so that the piles can be at the same height.
As a preferable technical scheme, the bottom of the pressing plate is provided with a rubber pad, the left end of the pressing plate is connected with the T-shaped groove in a sliding fit mode, and the rubber pad on the pressing plate can increase the effect of the pressing plate attached to the sliding frame.
As a preferred technical scheme of the invention, the middle part of the upper end of each pile column is provided with a square groove, the square groove of the pile column is connected with the lifting plate in a sliding fit mode, and the lifting plate can be conveniently pulled out of the ground when the pile column needs to be detached.
As a preferable technical scheme of the invention, the middle part of the lower side surface of the lifting plate and the right end of the lower side surface are respectively provided with a V-shaped groove, the V-shaped grooves in the middle part of the lifting plate are internally distributed with locking blocks with V-shaped structures, the locking blocks are arranged on the top of a locking sliding column, the middle part of the locking sliding column is connected with a sliding support plate in a sliding fit mode, the outer side surface of the lower end of the locking sliding column is provided with a locking spring, the locking spring is arranged between the locking sliding column and the sliding support plate and is a compression spring, the locking blocks can position the lifting plate, when the locking blocks are locked in the V-shaped grooves in the middle part, the lifting plate can not obstruct the placement of the retaining plate, and when the locking blocks are locked in the V-shaped grooves in the right end, the pile.
As a preferred technical scheme of the invention, the upper side and the lower side of the middle part of the limiting column are connected with the inner end of one telescopic rod through hinges, the outer end of each telescopic rod is provided with an outer supporting plate through a hinge, the outer side surface of each telescopic rod is sleeved with a telescopic spring, and the outer supporting plate can be supported on the soil retaining plate with a certain force under the action of the telescopic springs to prevent the middle part of the soil retaining plate from sinking, so that the soil retaining effect of the soil retaining plate is improved.
As a preferred technical scheme of the invention, the upper end and the lower end of the right side surface of the middle part of the soil retaining plate are respectively provided with the blocking frame, the blocking frame is of an L-shaped structure, the outer end of the outer supporting plate is clamped in the L-shaped structure of the blocking frame, and the outer supporting plate can be clamped in the blocking frame, so that the supporting force of the outer supporting plate is increased.
As a preferred technical scheme of the invention, the front end and the rear end of the right side surface of the retaining plate are respectively provided with a guide insertion block, the left side surface of the pile is provided with a guide groove at a position corresponding to the guide insertion block, and the guide groove on the pile can play a role in limiting and guiding the guide insertion blocks, so that the retaining plate can be attached to the pile for placement.
In addition, the invention provides a temporary support construction method of the temporary support structure for foundation pit construction, which comprises the following steps:
the first step is as follows: digging a foundation pit: firstly, excavating construction is carried out on a building foundation pit through an excavator, so that the foundation pit is in a proper size, and then line marking is carried out on positions where pile columns and inclined support piles need to be arranged;
the second step is that: inserting an inclined support pile: firstly, inserting the inclined support pile at the position marked by the inclined support pile on the foundation pit in a hammering mode, so that the inclined support pile is in a vertical state, and the inclined support can limit the inserting depth of the inclined support pile;
the third step: locking the inclined support rod: after the inclined support pile is inserted, the right end of the inclined support rod is locked on the inclined support seat through a locking bolt, then a T-shaped sliding block at the left end of the sliding frame is inserted into a square notch formed in a T-shaped groove in the pile column, so that the pile column can vertically move downwards by taking the T-shaped sliding block as a guide, and the pressing support plate can be pressed on the upper side surface of the sliding frame by rotating the pressing bolt, so that the supporting effect of the inclined support rod on the pile column is improved;
the fourth step: inserting the pile: when the pile moves downwards along the T-shaped sliding block and the bottom of the pile is in contact with the foundation pit, the pile is hammered to a proper position through a pile driver, so that the pile can be stably erected;
the fifth step: locking a limiting mechanism: after the pile is inserted and placed, when the pile at the rear end of the pile needs to be inserted and placed, the limiting rotating rod is rotated to enable the limiting insertion frame to be inserted into a square hole formed in the square sliding groove, then the pile at the rear end is inserted and placed, the square block at the rear end of the limiting mechanism can be inserted and placed in the square sliding groove of the pile at the rear end, after the pile at the rear end is inserted and placed in place, the limiting insertion frame at the rear end of the limiting mechanism can be locked on the pile at the rear end, therefore, the inserting and placing height of the pile at the rear end is limited, the limiting mechanism can support two adjacent piles, and integrity between the piles is improved;
and a sixth step: inserting the retaining plate: after the insertion of two adjacent piles is finished, the soil retaining plate is inserted on the left side surface of the pile, the outer supporting plate can be clamped in the L-shaped structure of the blocking frame by pressing the outer supporting plate inwards and rotating the telescopic rod leftwards,
the seventh step: the supporting structure is circularly arranged: and sequentially arranging supporting structures at the marked positions in the foundation pit, thereby completing the setting of the temporary supporting wall of the foundation pit.
The invention has the beneficial effects that:
the detachable structure is adopted to build the temporary foundation pit supporting wall, and all parts of the supporting structure can be recycled, so that the pile can be accurately positioned when being inserted, the arrangement of the pile is neat and attractive, the retaining plate arranged on the left side of the pile can be attached to the pile, each pile can bear uniform pressure, the stability of the foundation pit supporting wall is improved, all components can be stably connected, and the integrity of the foundation pit supporting wall is high;
the inclined support mechanism can position the insertion of the pile, the right end of the inclined support rod can be locked on the inclined support seat, a T-shaped sliding block on the sliding frame is matched with a T-shaped groove to limit the insertion position of the pile, the insertion position of the pile is prevented from deflecting, and after the pile is inserted, the pressing support plate can be pressed on the upper side face of the sliding frame by rotating the pressing bolt, so that the supporting effect of the inclined support rod on the pile is improved;
the limiting mechanism can support two adjacent pile columns, so that the integrity between the pile columns is improved;
the outer supporting plate can be supported on the retaining plate with certain force under the action of the telescopic spring, and the middle of the retaining plate is prevented from being sunken, so that the retaining effect of the retaining plate is improved;
the locking block can position the lifting plate, when the locking block is locked in the V-shaped groove in the middle, the lifting plate can not block the placement of the retaining plate, and when the locking block is locked in the V-shaped groove at the right end, the pile can be taken out by pulling the lifting plate upwards.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of a pile of the present invention;
FIG. 3 is a cross-sectional view of the present invention between the pile, the spacing mechanism and the retaining plate;
fig. 4 is a schematic structural view of the supporting structure of the present invention after the supporting structure is completely arranged.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 4, a temporary supporting structure for foundation pit construction comprises a pile 1, oblique piles 2, oblique supporting mechanisms 3, limiting mechanisms 4 and retaining plates 5, wherein the pile 1 is uniformly distributed from front to back, the lower end of the pile 1 is of a pointed structure, a T-shaped groove is formed in the right side surface of the middle of the pile 1, a square notch is formed in the lower end of the T-shaped groove, square chutes are formed in the front side surface and the back side surface of the pile 1, square holes are formed in the inner wall of the upper end of each square chute, an oblique pile 2 is uniformly distributed on the right side of each pile 1, the length of each oblique pile 2 is smaller than that of the pile 1, the lower end of each oblique pile 2 is of a pointed structure, the oblique supporting mechanisms 3 are connected between the piles 1 and the oblique piles 2, the limiting mechanisms 4 are connected between the inner side surfaces of two adjacent piles 1, one retaining plate 5 is uniformly distributed on the left side of each limiting mechanism 4, the invention can support the side wall of a foundation pit, firstly, an inclined support pile 2 is hammered and inserted into a proper position on the ground, then an inclined support mechanism 3 is arranged on the inclined support pile 2, then a pile 1 is placed on the left side of the inclined support pile 2, the pile 1 is hammered into the ground through a pile driver, the inclined support mechanism 3 can limit the position of the pile 1 when the pile 1 moves downwards, after the pile 1 is inserted and placed, a limiting mechanism 4 is locked at the rear end of the inserted pile 1, then an adjacent pile 1 at the rear end of the pile 1 is inserted and placed, the limiting mechanism 4 can limit the inserting and placing height of the adjacent pile 1 at the rear end, so that the piles 1 are at the same height, and the piles 1 can be at the same angle under the limiting action of the inclined support mechanism 3, therefore, a retaining plate 5 can be attached to the left side surface of the pile 1, so that each pile 1 can bear the same pressure, thereby increasing the stability of the present invention.
The middle part of the upper end of each pile column 1 is provided with a square groove, the square groove of the pile column 1 is connected with a lifting plate 11 in a sliding fit mode, and the lifting plate 11 can facilitate the pile column 1 to be pulled out of the ground when the pile is required to be dismantled.
The middle part of the lower side surface of the lifting plate 11 and the right end of the lower side surface are both provided with a V-shaped groove, locking blocks 12 of a V-shaped structure are distributed in the V-shaped groove in the middle of the lifting plate 11, the locking blocks 12 are installed on the top of a locking sliding column 13, the middle part of the locking sliding column 13 is connected with a sliding support plate 15 in a sliding fit mode, a locking spring 14 is arranged on the outer side surface of the lower end of the locking sliding column 13, the locking spring 14 is installed between the locking sliding column 13 and the sliding support plate 15, the locking spring 14 is a compression spring, the locking blocks 12 can position the position of the lifting plate 11, when the locking blocks 12 are locked in the V-shaped groove in the middle part, the lifting plate 11 can not obstruct the placement of the retaining plate 5, and when the locking blocks 12 are locked in the V-shaped groove in the right.
The inclined support mechanism 3 comprises an inclined support 31, an inclined support rod 32, a locking bolt 33, a sliding frame 34, a pressing plate 35, a pressing support plate 36 and a pressing bolt 37, the inclined support 31 is installed on the left side face of the inclined support pile 2, the inclined support 31 is of a square-shaped structure, the right end of the inclined support rod 32 is inserted into the square-shaped structure of the inclined support 31, round holes are formed in the right end of the inclined support rod 32 and the middle of the inclined support 31, the locking bolt 33 penetrates through the round holes in the inclined support rod 32 and the inclined support 31, the locking bolt 33 is locked on the inclined support 31 through a nut, and the middle of the inclined support rod 32 is of an inclined structure;
a sliding frame 34 with an L-shaped structure is arranged at the left end of the inclined strut 32, a T-shaped slide block which is in sliding fit with a T-shaped groove is arranged on the left side surface of the sliding frame 34, a pressing plate 35 is distributed above the sliding frame 34, the upper side surface of the pressing plate 35 is connected with the lower end of a pressing bolt 37 through a bearing, the middle part of the pressing bolt 37 is connected with a pressing support plate 36 through a thread fit mode, the pressing support plate 36 is arranged on the right side surface of the pile 1, and the pressing support plate 36 is positioned above the T-shaped groove, when the inclined strut mechanism 3 works in detail, the insertion and placement of the pile 1 can be positioned, the right end of the inclined strut 32 can be locked on the inclined support 31, the T-shaped slide block on the sliding frame 34 is matched with the T-shaped groove to limit the insertion and placement position of the pile 1, the insertion and placement position of the pile 1 is prevented from deflecting, after the pile 1 is inserted and placed, the pressing bolt 37 is rotated to press the pressing support, thereby increasing the supporting effect of the oblique strut 32 on the pile 1.
The bottom of the pressing plate 35 is provided with a rubber pad, the left end of the pressing plate 35 is connected with the T-shaped groove in a sliding fit mode, and the rubber pad on the pressing plate 35 can increase the effect of the pressing plate 35 attached to the sliding frame 34.
The limiting mechanism 4 comprises limiting columns 41, limiting rotating rods 42, connecting columns 43, square blocks 44, limiting insertion frames 45 and limiting springs 46, the limiting columns 41 are located between the inner side surfaces of the two pile columns 1, screw holes are formed in the front side surface and the rear side surface of each limiting column 41, each screw hole in each limiting column 41 is connected with the inner end of one limiting rotating rod 42 in a threaded fit mode, the connecting columns 43 are mounted on the outer ends of the limiting rotating rods 42 through bearings, the square blocks 44 are mounted on the outer side surfaces of the connecting columns 43, and the square blocks 44 are connected in square sliding chutes in a sliding fit mode;
an L-shaped groove is formed in the middle of the connecting column 43, the outer end of the L-shaped groove penetrates through the square block 44, the inner end of the L-shaped groove penetrates through the right end face of the connecting column 43, a limiting insertion frame 45 is distributed in the L-shaped groove and is of an L-shaped structure, the outer end of the limiting insertion frame 45 is located in a square hole formed in the square sliding groove, the middle of the inner end of the limiting insertion frame 45 is mounted on the inner side wall of the L-shaped groove through a limiting spring 46, the right side of the inner end of the limiting insertion frame 45 penetrates through the connecting column 43, in the specific working process, the limiting mechanism 4 can support two adjacent piles 1 and increase integrity between the piles 1, after the insertion of the pile 1 at the front end is completed, the position of the connecting column 43 can be adjusted by rotating the limiting rotating rod 42, the square block 44 can be located in the square sliding groove, at the moment, the limiting insertion frame 45 can be inserted, at this time, the square block 44 at the rear end of the limiting mechanism 4 can be inserted into the square sliding groove on the front side surface of the pile 1, and after the pile 1 at the rear end is inserted in place, the limiting insertion frame 45 at the rear end of the limiting mechanism 4 can be locked on the pile 1 at the rear end, so that the inserting height of the pile 1 at the rear end is limited.
The front side and the rear side of each pile column 1 are respectively provided with a limiting clamping frame 47, the limiting clamping frames 47 are of L-shaped structures, the lower side surfaces of the limiting clamping frames 47 are arc-shaped surfaces, the lower ends of the limiting clamping frames 47 are clamped at the upper ends of the connecting columns 43, the limiting clamping frames 47 can abut against the upper ends of the connecting columns 43, the height limiting effect of the pile column 1 limiting device can be improved, and the pile columns 1 can be located at the same height.
All be connected with the inner of a telescopic link 411 through the hinge on the side about the middle part of spacing post 41, all there is outer fagging 412 through the hinge mounting on the outer of every telescopic link 411, the cover is equipped with expanding spring 413 on the lateral surface of telescopic link 411, outer fagging 412 can have the support of certain dynamics under expanding spring 413 on retaining soil board 5, prevent that the middle part that keeps off soil board 5 from taking place sunken to increase the fender soil effect that keeps off soil board 5.
Both ends all install one and block frame 51 about the middle part right flank of fender board 5, block frame 51 and be L type structure, the outer end card of outer fagging 412 blocks in the L type structure of frame 51, outer fagging 412 can block in blocking frame 51 to increase the support dynamics of outer fagging 412.
Both ends all are provided with a direction inserted block 52 around the right flank of fender apron 5, the position department that corresponds direction inserted block 52 on the left surface of stake 1 all is provided with the guide way, the guide way on the stake 1 can play spacing effect of direction inserted block 52 for keep off apron 5 and can laminate stake 1 and place.
In addition, the invention provides a temporary support construction method of the temporary support structure for foundation pit construction, which comprises the following steps:
the first step is as follows: digging a foundation pit: firstly, excavating construction is carried out on a building foundation pit through an excavator, so that the foundation pit is in a proper size, and then line marking is carried out at the position where a pile column 1 and an inclined support pile 2 need to be arranged;
the second step is that: inserting and placing the inclined support piles 2: firstly, inserting the inclined support piles 2 at the positions marked by the inclined support piles 2 on the foundation pit in a hammering mode, so that the inclined support piles 2 are in a vertical state, and the inclined supports 31 can limit the inserting depth of the inclined support piles 2;
the third step: the diagonal strut 32 is locked: after the inclined supporting pile 2 is inserted, the right end of the inclined supporting rod 32 is locked on the inclined support 31 through the locking bolt 33, then the T-shaped sliding block at the left end of the sliding frame 34 is inserted into a square notch formed in a T-shaped groove in the pile 1, so that the pile 1 can vertically move downwards by taking the T-shaped sliding block as a guide, and the pressing supporting plate 36 can be pressed on the upper side surface of the sliding frame 34 by rotating the pressing bolt 37, so that the supporting effect of the inclined supporting rod 32 on the pile 1 is improved;
the fourth step: inserting the pile 1: when the pile 1 moves downwards along the T-shaped sliding block and the bottom of the pile 1 is in contact with a foundation pit, the pile 1 is hammered to a proper position through a pile driver, so that the pile 1 can be stably erected;
the fifth step: and locking a limiting mechanism 4: after the pile 1 is inserted and placed, when the pile 1 at the rear end of the pile 1 needs to be inserted and placed, the limiting rotating rod 42 is rotated to enable the limiting insertion frame 45 to be inserted into a square hole formed in the square sliding groove, then the pile 1 at the rear end is inserted and placed, the square block 44 at the rear end of the limiting mechanism 4 can be inserted and placed in the square sliding groove of the pile 1 at the rear end, after the pile 1 at the rear end is inserted and placed in place, the limiting insertion frame 45 at the rear end of the limiting mechanism 4 can be locked on the pile 1 at the rear end, therefore, the inserting and placing height of the pile 1 at the rear end is limited, the limiting mechanism 4 can support two adjacent piles 1, and integrity between the piles 1 is improved;
and a sixth step: inserting and placing the retaining plate 5: after two adjacent piles 1 are inserted, the soil retaining plate 5 is inserted on the left side surface of the pile 1, the outer supporting plate 412 is pressed inwards and the telescopic rod 411 is rotated leftwards, so that the outer supporting plate 412 can be clamped in the L-shaped structure of the blocking frame 51,
the seventh step: the supporting structure is circularly arranged: and sequentially arranging supporting structures at the marked positions in the foundation pit, thereby completing the setting of the temporary supporting wall of the foundation pit.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The utility model provides a temporary support structure for foundation ditch construction, includes stake (1), oblique stake (2), oblique mechanism (3), stop gear (4), fender apron (5), its characterized in that: the pile is characterized in that the piles (1) are uniformly distributed from front to back, the lower end of each pile (1) is of a pointed structure, a T-shaped groove is formed in the right side face of the middle of each pile (1), a square notch is formed in the lower end of each T-shaped groove, a square sliding groove is formed in each of the front side face and the rear side face of each pile (1), a square hole is formed in the inner wall of the upper end of each square sliding groove, an inclined supporting pile (2) is uniformly distributed on the right side of each pile (1), the length of each inclined supporting pile (2) is smaller than that of each pile (1), the lower end of each inclined supporting pile (2) is of a pointed structure, an inclined supporting mechanism (3) is connected between each pile (1) and each inclined supporting pile (2), a limiting mechanism (4) is connected between the inner side faces of two adjacent piles (1), and a retaining plate (5) is uniformly distributed on the left side of; wherein:
the inclined support mechanism (3) comprises an inclined support (31), an inclined support rod (32), a locking bolt (33), a sliding frame (34), a pressing plate (35), a pressing support plate (36) and a pressing bolt (37), the inclined support (31) is installed on the left side face of the inclined support pile (2), the inclined support (31) is of a square-shaped structure, the right end of the inclined support rod (32) is inserted into the square-shaped structure of the inclined support (31), round holes are formed in the right end of the inclined support rod (32) and the middle of the inclined support (31), the locking bolt (33) penetrates through the round holes in the inclined support rod (32) and the inclined support (31), the locking bolt (33) is locked on the inclined support (31) through a nut, and the middle of the inclined support rod (32) is of an inclined structure;
a sliding frame (34) of an L-shaped structure is mounted at the left end of the inclined supporting rod (32), a T-shaped sliding block in sliding fit with the T-shaped groove is arranged on the left side face of the sliding frame (34), a pressing plate (35) is distributed above the sliding frame (34), the upper side face of the pressing plate (35) is connected with the lower end of a pressing bolt (37) through a bearing, the middle of the pressing bolt (37) is connected with a pressing supporting plate (36) in a threaded fit mode, the pressing supporting plate (36) is mounted on the right side face of the pile column (1), and the pressing supporting plate (36) is located above the T-shaped groove;
the limiting mechanism (4) comprises limiting columns (41), limiting rotating rods (42), connecting columns (43), square blocks (44), limiting insertion frames (45) and limiting springs (46), wherein the limiting columns (41) are located between the inner side surfaces of the two pile columns (1), screw holes are formed in the front side surface and the rear side surface of each limiting column (41), each screw hole in each limiting column (41) is connected with the inner end of one limiting rotating rod (42) in a threaded fit mode, the connecting columns (43) are installed on the outer ends of the limiting rotating rods (42) through bearings, the square blocks (44) are installed on the outer side surfaces of the connecting columns (43), and the square blocks (44) are connected in square sliding chutes in a sliding fit mode;
the middle part of spliced pole (43) is provided with L type groove, square piece (44) are passed to the outer end in L type groove, the right-hand member face of spliced pole (43) is passed to the inner in L type groove, L type inslot has spacing frame (45) of inserting of cloth, spacing frame (45) of inserting is L type structure, the outer end of spacing frame (45) of inserting is located the square hole that sets up on the square chute, spacing inner middle part of inserting frame (45) is installed on the inside wall in L type groove through spacing spring (46), the inner right side of spacing frame (45) of inserting passes spliced pole (43).
2. The temporary supporting structure for foundation pit construction according to claim 1, wherein: every the front and back side of stake (1) on all be provided with one spacing calorie of frame (47), spacing calorie of frame (47) are L type structure, and the downside of spacing calorie of frame (47) is the arcwall face, the lower extreme card of spacing calorie of frame (47) is in the upper end of spliced pole (43).
3. The temporary supporting structure for foundation pit construction according to claim 1, wherein: the bottom of the pressing plate (35) is provided with a rubber pad, and the left end of the pressing plate (35) is connected with the T-shaped groove in a sliding fit mode.
4. The temporary supporting structure for foundation pit construction according to claim 1, wherein: the middle part of the upper end of each pile column (1) is provided with a square groove, and the square grooves of the pile columns (1) are connected with the lifting plates (11) in a sliding fit mode.
5. The temporary supporting structure for foundation pit construction according to claim 4, wherein: the lifting plate is characterized in that a V-shaped groove is formed in the middle of the lower side face of the lifting plate (11) and the right end of the lower side face of the lifting plate, locking blocks (12) of a V-shaped structure are distributed in the V-shaped groove in the middle of the lifting plate (11), the locking blocks (12) are installed on the top of a locking sliding column (13), the middle of the locking sliding column (13) is connected with a sliding support plate (15) in a sliding fit mode, a locking spring (14) is arranged on the outer side face of the lower end of the locking sliding column (13), the locking spring (14) is installed between the locking sliding column (13) and the sliding support plate (15), and the locking spring (14) is.
6. The temporary supporting structure for foundation pit construction according to claim 1, wherein: the upper side and the lower side of the middle part of the limiting column (41) are connected with the inner end of one telescopic rod (411) through hinges, the outer end of each telescopic rod (411) is provided with an outer supporting plate (412) through a hinge, and the outer side surface of each telescopic rod (411) is sleeved with a telescopic spring (413).
7. The temporary supporting structure for foundation pit construction according to claim 6, wherein: the upper end and the lower end of the right side surface of the middle part of the soil retaining plate (5) are respectively provided with a blocking frame (51), the blocking frames (51) are L-shaped structures, and the outer ends of the outer supporting plates (412) are clamped in the L-shaped structures of the blocking frames (51).
8. The temporary supporting structure for foundation pit construction according to claim 1, wherein: the front end and the rear end of the right side surface of the retaining plate (5) are respectively provided with a guide insert block (52), and the positions of the left side surface of the pile column (1) corresponding to the guide insert blocks (52) are respectively provided with a guide groove.
9. The temporary supporting structure for foundation pit construction according to claim 7, wherein: the temporary support construction method of the temporary support structure for foundation pit construction comprises the following steps:
the first step is as follows: digging a foundation pit: firstly, excavating construction is carried out on a building foundation pit through an excavator, so that the foundation pit is in a proper size, and then line marking is carried out at the position where a pile column (1) and an inclined support pile (2) need to be arranged;
the second step is that: inserting and placing the inclined support piles (2): firstly, inserting the inclined support piles (2) at marked positions in a foundation pit in a hammering mode, so that the inclined support piles (2) are in a vertical state;
the third step: the oblique supporting rod (32) is locked: after the inclined supporting pile (2) is inserted, the right end of an inclined supporting rod (32) is locked on an inclined support (31), and then a T-shaped sliding block at the left end of a sliding frame (34) is inserted from a square notch formed in a T-shaped groove in the pile (1), so that the pile (1) can vertically move downwards by taking the T-shaped sliding block as a guide;
the fourth step: inserting the pile (1): when the pile (1) moves downwards along the T-shaped sliding block and the bottom of the pile (1) is in contact with a foundation pit, hammering the pile (1) to a proper position through a pile driver;
the fifth step: and (4) locking a limiting mechanism: after the pile (1) is inserted and placed, when the pile (1) at the rear end of the pile (1) needs to be inserted and placed, the limiting rotating rod (42) is rotated to enable the limiting insertion frame (45) to be inserted into a square hole formed in the square sliding groove, then the pile (1) at the rear end is inserted and placed, and after the pile (1) at the rear end is inserted and placed in place, the limiting insertion frame (45) at the rear end of the limiting mechanism (4) can limit the insertion and placement height of the pile (1) at the rear end;
and a sixth step: inserting and placing the retaining plate (5): after two adjacent piles (1) are inserted, the soil retaining plate (5) is inserted on the left side surface of the pile (1), and the outer supporting plate (412) can be clamped in the L-shaped structure of the blocking frame (51) by pressing the outer supporting plate (412) inwards and rotating the telescopic rod (411) leftwards;
the seventh step: the supporting structure is circularly arranged: and sequentially arranging supporting structures at the marked positions in the foundation pit.
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| CN202010053137.9A CN111101524B (en) | 2020-01-17 | 2020-01-17 | Temporary supporting structure for foundation pit construction and temporary supporting construction method |
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| CN112627622B (en) * | 2020-12-30 | 2022-09-27 | 中国建筑土木建设有限公司 | Flagpole connecting structure |
| CN114658004B (en) * | 2022-04-08 | 2024-01-12 | 杭州福世德岩土科技有限公司 | Foundation supporting device for geotechnical engineering construction |
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| KR100964995B1 (en) * | 2008-02-25 | 2010-06-21 | 코오롱건설주식회사 | Soil retaining method for two rows pile using raker |
| CN203654295U (en) * | 2013-12-23 | 2014-06-18 | 中国建筑西南勘察设计研究院有限公司 | Single-leg inclined strut reinforced foundation pit supporting structure |
| CN108951651A (en) * | 2018-08-08 | 2018-12-07 | 东莞坂盈实业有限责任公司 | A kind of pattern foundation pit supporting structure that stablizing effect is good |
| CN108951659B (en) * | 2018-08-27 | 2020-06-02 | 广东耀南建筑工程有限公司 | Foundation pit supporting structure based on row piles and inner supports and construction method thereof |
| CN110644497B (en) * | 2019-09-18 | 2021-05-04 | 长安大学 | Soft soil foundation deep foundation pit supporting device |
| CN110685286A (en) * | 2019-10-22 | 2020-01-14 | 中铁八局集团第四工程有限公司 | Deep foundation pit supporting construction process for adjacent road under complex geological condition |
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