CN115305919A - Foundation pit excavation earthwork landslide prevention enclosure structure and construction method thereof - Google Patents
Foundation pit excavation earthwork landslide prevention enclosure structure and construction method thereof Download PDFInfo
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- CN115305919A CN115305919A CN202210789457.XA CN202210789457A CN115305919A CN 115305919 A CN115305919 A CN 115305919A CN 202210789457 A CN202210789457 A CN 202210789457A CN 115305919 A CN115305919 A CN 115305919A
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- 238000010276 construction Methods 0.000 title claims abstract description 38
- 238000009412 basement excavation Methods 0.000 title claims abstract description 33
- 230000002265 prevention Effects 0.000 title claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 76
- 239000010959 steel Substances 0.000 claims abstract description 76
- 230000002787 reinforcement Effects 0.000 claims abstract description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 123
- 239000003351 stiffener Substances 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000005728 strengthening Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000002689 soil Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Classifications
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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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/16—Auxiliary devices rigidly or detachably arranged on sheet piles for facilitating assembly
Abstract
The application relates to a foundation pit excavation earthwork landslide prevention support structure and a construction method thereof, and belongs to the field of foundation pit construction technology. It includes that what form is spliced in proper order by polylith steel sheet pile encloses the fender, enclose the construction space that the fender is a rectangle, it is provided with connecting piece and supporting component on the fender inner wall to enclose, the supporting component is rectangular frame, the supporting component is provided with a plurality ofly along vertical direction, the supporting component passes through the connecting piece and connects on enclosing the fender, it is provided with the reinforcement outward to enclose the fender, the reinforcement is used for enclosing the fender and consolidates. This application has the effect that construction machinery of being convenient for is under construction in enclosing the fender.
Description
Technical Field
The application relates to the field of foundation pit construction technology, in particular to a foundation pit excavation earthwork landslide prevention enclosure structure and a construction method thereof.
Background
After the foundation pit is excavated, the side wall of the foundation pit needs to be supported by an anti-landslide enclosure structure, and the common anti-landslide enclosure structure comprises row piles, underground continuous walls, cement retaining walls, steel sheet piles and the like. Among various building envelopes, the steel sheet pile is popular among people because of the advantages of stable material quality, reliable quality, repeated use, environmental protection, no pollution, reduction of construction cost and the like. The both sides edge of steel sheet pile is provided with the fore shaft, and two adjacent steel sheet piles pass through the fore shaft cooperation to be connected, and polylith steel sheet pile end to end forms and encloses the fender, encloses the inside construction space who is foundation ditch excavation of fender.
Referring to fig. 1, in the construction process, a steel sheet pile 1 is lifted to a pile inserting point by a lifting machine for pile inserting, and then the steel sheet pile 1 is driven into a foundation by a pile sinking machine. Enclose 2 inboard crisscross installations of fender steel and enclose purlin 21 and support enclosing the fender, the steel encloses purlin 21 installation and accomplishes the back, and construction machinery enters into and excavates the foundation ditch earthwork to enclosing in the fender 2.
To the correlation technique among the aforesaid, the steel encloses the purlin and installs inside enclosing the fender, leads to enclosing that operating space is limited in the fender, is not convenient for enclose the construction of interior construction machinery of fender.
Disclosure of Invention
In order to facilitate construction of construction machinery in the enclosure, the application provides a foundation pit excavation earthwork landslide prevention enclosure structure and a construction method thereof.
First aspect, the application provides a foundation ditch excavation earthwork landslide prevention envelope adopts following technical scheme:
the utility model provides a foundation ditch excavation earthwork landslide prevention envelope, includes that what form is spliced in proper order by polylith steel sheet pile encloses the fender, enclose the construction space that keeps off for a rectangle, it is provided with connecting piece and supporting component on keeping off the inner wall to enclose, the supporting component is rectangular frame, the supporting component is provided with a plurality ofly along vertical direction, the supporting component passes through the connecting piece and connects and enclose on keeping off, it is provided with the reinforcement outward to enclose the fender, the reinforcement is used for enclosing the fender and consolidates.
Through taking above-mentioned technical scheme, enclose the fender and block the peripheral earthwork of foundation ditch, prevent that the landslide takes place for the surrounding soil behind the foundation ditch excavation, the supporting component who installs in enclosing the fender is rectangular frame, the supporting component supports enclosing the fender, install and to enclose the outer reinforcement of fender and consolidate the support to enclosing the fender, thereby need not to enclose the purlin through installing the steel that encloses in the fender and to enclosing the fender and support, do not have the steel to enclose the purlin when supporting enclosing the fender and occupy the construction space who encloses in the fender, thereby be convenient for mechanical equipment and construct in enclosing the fender.
Optionally, the two sides of the groove of the steel sheet pile are provided with clamping plates, the reinforcing member comprises a reinforcing beam, the reinforcing beam is inserted between two adjacent steel sheet piles with the same groove orientation, the reinforcing beam is an i-shaped steel, and wing plates of the reinforcing beam are abutted to the clamping plates on the two steel sheet piles.
By adopting the technical scheme, the reinforcing beam is arranged between two adjacent steel sheet piles with the same groove direction, the wing plates of the reinforcing beam are abutted to the clamping plates on the two steel sheet piles, and the reinforcing beam vertically inserted into the foundation is used for reinforcing and supporting the enclosure, so that the stability of the enclosure is improved; the reinforcing beam is the I-steel, and when the reinforcing beam inserted to the ground, can be full of earth between the pterygoid lamina of reinforcing beam both sides, this partial earth can block the reinforcing beam, and then has promoted to enclose and keep off the ability of resisting outside earthwork pressure.
Optionally, a web of the reinforcing beam is provided with a through hole, and a plurality of reinforcing rods penetrate through the through hole in the reinforcing beam.
Through adopting above-mentioned technical scheme, the reinforcing beam will be located and enclose many reinforcing beams on the same outer wall of fender and connect for a whole and then promoted the overall stability who encloses the fender.
Optionally, two adjacent anchor rods are connected, the anchor rods are provided with inhaul cables, a plurality of sides of the enclosure are far away from the enclosure and are provided with anchor piles, and the inhaul cables are connected with the anchor piles.
Through taking above-mentioned technical scheme, two adjacent anchor strut connect to enclose four anchor strut connections on the fender outer wall as a whole, and then will enclose the outer reinforcing beam of fender and connect as a whole, promoted the bulk strength who encloses the fender, stretch four anchor strut through the cable, when enclosing the pressure that the fender received outside earthwork, the cable provided a pulling force to enclosing the fender, had promoted the compressive capacity who encloses the fender.
Optionally, the supporting component includes a supporting beam and stiffener, a supporting beam is the I-steel, a supporting beam has many and many supporting beams to laminate mutually with a plurality of lateral walls that enclose the fender respectively, two adjacent a supporting beam joint, the stiffener sets up two adjacent between the supporting beam, just the stiffener is located between the web and the pterygoid lamina of supporting beam.
Through adopting above-mentioned technical scheme, enclose four spinal branch supporting beams on keeping off the inner wall and connect as a whole to consolidate through the stiffener, supporting component supports enclosing to keep off, keeps off to enclose to keep off the pressure that comes from enclosing and keep off outside earthwork that receives.
Optionally, the reinforcing rod is arranged on both sides of the supporting beam, the opposite-pulling bolt penetrates through the reinforcing rod, and the opposite-pulling bolt penetrates through the supporting beam and then is connected with the reinforcing rod on the other side of the supporting beam.
Through adopting above-mentioned technical scheme, the stiffener plays the effect of connecting two adjacent supporting beams and carrying out the reinforcement to the supporting beam.
Optionally, the connecting piece includes the movable plate, sets up the case of placing on the movable plate, the movable plate sets up on enclosing and keeping off the inner wall, just the movable plate slides and sets up between two adjacent steel sheet piles that the recess orientation is the same, the both ends of movable plate respectively with two steel sheet piles on the cardboard inner wall inconsistent, place the case for the rectangle box that both sides run through, the articulated apron that is provided with in top of placing the case, a supporting beam is placing the incasement.
Through adopting above-mentioned technical scheme, when installing a supporting beam, place a supporting beam and be located the incasement of placing on the same horizontal plane, the connecting piece plays the effect of being convenient for install a supporting beam.
Optionally, fixing bolts penetrate through two sides of the moving plate, a plurality of threaded holes are formed in the clamping plate located in the enclosure, and the fixing bolts penetrate through the threaded holes to connect the moving plate to the clamping plate.
Through adopting above-mentioned technical scheme, the connecting plate passes through fixing bolt to be installed on the cardboard, through adjusting the mounted position of connecting plate in vertical direction, can adjust a supporting beam's mounted position.
Optionally, the connecting pieces are divided into a plurality of groups in the enclosure, and the plurality of connecting pieces in the same group are located on the same horizontal plane.
By adopting the technical scheme, the installation number of the supporting components is determined according to the construction depth of the foundation pit, and the plurality of groups of connecting pieces are installed in the enclosure, so that the plurality of supporting components are convenient to install.
On the other hand, the application provides a construction method of foundation pit excavation earthwork landslide prevention building envelope, which comprises the following steps:
s1: the steel sheet piles are hoisted to pile inserting points through hoisting machinery, then the steel sheet piles are driven into the foundation through pile sinking machinery, a plurality of steel sheet piles are connected end to form a fence, and the fence forms a rectangular construction space; s2: a plurality of reinforcing beams are driven into the foundation outside the enclosure through pile sinking machinery; s3: the reinforcing rods penetrate among the reinforcing beams through the through holes in the reinforcing beams, and the reinforcing rods are connected into a whole; s4: driving a fixing pile into the foundation outside the enclosure, and connecting a guy cable between the fixing pile and the reinforcing rod; s5: installing a plurality of connecting pieces in the enclosure according to the design depth of the foundation pit; s6: along with the increase of excavation depth of foundation ditch, from last supporting component of installing in proper order down on multilayer connecting piece.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the enclosure blocks earthwork around the foundation pit, landslide of the surrounding soil is prevented after excavation of the foundation pit, the supporting component arranged in the enclosure is a rectangular frame, the supporting component supports the enclosure, and the reinforcing component arranged outside the enclosure reinforces and supports the enclosure, so that the enclosure does not need to be supported by a steel enclosure purlin arranged in the enclosure, and the enclosure is supported without the steel enclosure purlin occupying construction space in the enclosure, so that mechanical equipment can be conveniently constructed in the enclosure;
2. the reinforcing beam is arranged between two adjacent steel sheet piles with the same groove direction, the wing plates of the reinforcing beam are abutted against the clamping plates on the two steel sheet piles, and the reinforcing beam vertically inserted into the foundation is used for reinforcing and supporting the enclosure, so that the stability of the enclosure is improved; the reinforcing beam is made of I-shaped steel, when the reinforcing beam is inserted into the foundation, soil is filled between wing plates on two sides of the reinforcing beam, and the soil can block the reinforcing beam, so that the capacity of the enclosure for resisting external earthwork pressure is improved;
3. two adjacent reinforcing bars are connected to will enclose four reinforcing bars on keeping off the outer wall and connect as a whole, and then will enclose the outer reinforcing beam of fender and connect as a whole, promoted the bulk strength who encloses the fender, stretch four reinforcing bars through the cable, when enclosing the pressure that the fender received outside earthwork, the cable was to enclosing the fender and providing a pulling force, had promoted the compressive capacity who encloses the fender.
Drawings
Fig. 1 is a schematic structural view of the related art.
Fig. 2 is a schematic structural diagram of an embodiment of the present application.
Fig. 3 is a schematic structural view for showing the position of the reinforcing beam in the embodiment of the present application.
Fig. 4 is an enlarged view of a portion a in fig. 2.
Fig. 5 is an exploded view for showing a support member in the embodiment of the present application.
Fig. 6 is a schematic structural view for showing a connecting member in the embodiment of the present application.
Description of the reference numerals:
1. steel sheet piles; 11. clamping a plate; 111. a threaded hole; 2. fencing; 21. steel purlin; 3. a connecting member; 31. moving the plate; 311. fixing the bolt; 32. placing the box; 33. a cover plate; 4. a support assembly; 41. a support beam; 42. a reinforcing rod; 43. oppositely pulling the bolts; 44. a tenon; 45. mortises; 5. a reinforcement; 51. reinforcing the beam; 52. a reinforcing rod; 521. an L-shaped hoop; 53. a pull cable; 54. and (6) reinforcing the piles.
Detailed Description
The present application is described in further detail below with reference to figures 2-6.
The embodiment of the application discloses foundation ditch excavation earthwork landslide prevention retaining structure, refer to fig. 2, a foundation ditch excavation earthwork landslide prevention retaining structure includes that polylith steel sheet pile 1 connects gradually and encloses enclose fender 2, and polylith steel sheet pile 1 is mutual joint, encloses fender 2 and encloses into the construction space of a rectangle in foundation ditch pre-excavation department. Install connecting piece 3 and supporting component 4 on enclosing the inner wall that keeps off 2, supporting component 4 is the frame of rectangle, and supporting component 4 with enclose 2 inner walls of fender and paste mutually and support enclosing fender 2, and supporting component 4 installs a plurality ofly in enclosing fender 2, and a plurality of supporting component 4 are located not co-altitude, support the reinforcement to enclosing a plurality of positions that keep off 2 vertical side, promote to enclose the overall structure stability who keeps off 2. Install reinforcement 5 outside enclosing fender 2, reinforcement 5 is to enclosing fender 2 and consolidate. Through the reinforcement of supporting component 4 and reinforcement 5, promote to enclose the structural stability who keeps off 2, need not to enclose purlin 21 through the steel and support and consolidate enclosing fender 2, do not have the steel to enclose that purlin 21 is crisscross to be installed and to enclose 2 inside occupation construction space of fender, and the construction machinery of being convenient for excavates the construction to the foundation ditch enclosing 2 in.
Referring to fig. 3, steel sheet pile 1 is larsen steel sheet pile 1, and when steel sheet pile 1 was installed in the concatenation, two adjacent steel sheet piles 1 recess orientation opposite direction, two adjacent steel sheet piles 1 crisscross setting. The clamping plates 11 are fixedly mounted on two sides of the groove of the steel sheet pile 1, and the clamping plates 11 are mounted along the length direction of the steel sheet pile 1. The reinforcement 5 comprises a reinforcing beam 51, the reinforcing beam 51 is made of I-shaped steel, the reinforcing beam 51 is vertically inserted into the foundation and is located outside the enclosure 2, a wing plate on one side of the reinforcing beam 51 is located between two adjacent steel sheet piles 1 with the same groove orientation, and the wing plate of the reinforcing beam 51 is abutted against the inner walls of the clamping plates 11 of the two steel sheet piles 1.
The pterygoid lamina of reinforcing beam 51 is inconsistent with cardboard 11 on two steel sheet piles 1, and when steel sheet pile 1 received the pressure of enclosing and keeping off 2 outer earth, with pressure transmission to reinforcing beam 51 on, reinforcing beam 51 is vertical to be inserted into the ground among, and itself can bear certain lateral pressure, plays the effect of carrying out the reinforcement support to steel sheet pile 1. The reinforcing beam 51 is an i-shaped steel, and when the reinforcing beam 51 is inserted into the foundation, soil filled between the flanges of the reinforcing beam 51 blocks the reinforcing beam 51, thereby further improving the lateral pressure resistance of the reinforcing beam 51.
Referring to fig. 2 and 3, the web of the reinforcing beam 51 is provided with a through hole, when the reinforcing beam 51 is installed, the reinforcing beam 51 is inserted into the ground through a pile sinking machine, the through holes of the reinforcing beams 51 are opposite to each other and are located above the ground, a reinforcing rod 52 penetrates through the through hole of the reinforcing beams 51, the reinforcing rod 52 is a round steel, and the reinforcing beams 51 located on the same side outside the enclosure 2 are connected into a whole by the reinforcing rod 52.
Referring to fig. 2 and 4, the two reinforcing rods 52 on two adjacent outer walls of the enclosure 2 are connected through L-shaped hoops 521, two ends of each L-shaped hoop 521 are respectively sleeved on the two reinforcing rods 52, fastening bolts are respectively arranged at two ends of each L-shaped hoop 521 in a penetrating manner, and the two hoop plates of each L-shaped hoop 521 are connected after the fastening bolts penetrate through the reinforcing rods 52.
Referring to fig. 2, four reinforcing rods 52 outside the enclosure 2 are all sleeved with inhaul cables 53, the inhaul cables 53 are steel wire ropes, reinforcing piles 54 are all installed on four sides, far away from the enclosure 2, outside the enclosure 2, the reinforcing piles 54 are fixedly inserted into a foundation, the other ends of the inhaul cables 53 are connected with the fixing piles, and the inhaul cables 53 are in a tightened and straightened state.
Connect four reinforcing bars 52 as a whole through the staple bolt, four reinforcing bars 52 form a rectangular frame, enclose when keeping off 2 and receive the pressure of outside earth, enclose and keep off 2 will receive pressure transmission to reinforcing beam 51 on, reinforcing beam 51 transmits pressure to reinforcing bar 52, four reinforcing bar 52 support each other to enclosing and keeping off 2 and support. The pulling cable 53 on the reinforcing rod 52 generates a pulling force on the reinforcing rod 52, and further supports and reinforces the enclosure 2.
Referring to fig. 2 and 5, the supporting assembly 4 includes a supporting beam 41 and a reinforcing rod 42, the supporting beam 41 is also an i-steel, the supporting beam 41 is installed on four inner side walls of the enclosure 2, and the four supporting beams 41 are located on the same horizontal plane and connected in sequence. A tenon 44 is fixedly connected to a web plate at one end of the supporting beam 41, a mortise 45 is formed in a web plate at the other end of the supporting beam, and the tenon 44 is matched with the mortise 45. Two adjacent support rods are connected in a positioning manner through the clamping connection of the tenon 44 and the mortise 45. The reinforcing rod 42 is an L-shaped thickened steel plate, the reinforcing rod 42 is located between the wing plates and the web plates at two sides of the supporting beam 41, and two ends of the reinforcing rod 42 are respectively located in the two supporting rods. The reinforcing rods 42 are arranged on both sides of the supporting beam 41, a plurality of split bolts 43 are arranged on the reinforcing rods 42 in a penetrating mode, and the split bolts 43 penetrate through a web plate of the supporting beam 41 and then are fixedly connected with the reinforcing rods 42 on the other side.
Four supporting beams 41 are formed into a whole, reinforcing rods 42 are used for reinforcing and supporting the supporting beams 41, and a rectangular frame formed by the supporting beams 41 is connected and installed on the inner wall of the enclosure 2 through connecting pieces 3. When the enclosure 2 receives the pressure of outside soil, the pressure received by the enclosure 2 is transmitted to the supporting beams 41, and the enclosure 2 is supported and reinforced by the whole formed by the four supporting beams 41.
Referring to fig. 2 and 6, the plurality of connecting members 3 are arranged on the inner wall of the enclosure 2, the connecting members 3 are divided into a plurality of groups, and the plurality of connecting members 3 in the same group are located on the same horizontal plane. The connecting piece 3 includes movable plate 31 and installs the case 32 of placing on movable plate 31, and movable plate 31 is the rectangular plate body, and movable plate 31 slidable mounting is between two adjacent steel sheet piles 1 that the recess orientation is the same, and the both sides of movable plate 31 respectively with two steel sheet piles 1 on cardboard 11 inner wall inconsistent. The placing box 32 is a hollow box body with two sides penetrating through, a cover plate 33 is hinged on the top of the placing box 32, and the supporting beam 41 is placed in the placing box 32.
It is particularly noted that when the supporting beam 41 is placed in the placing box 32, the supporting beam 41 is against the steel sheet pile 1, the connecting member 3 only supports the supporting beam 41, and when the enclosure 2 is subjected to the pressure of the external earthwork, the pressure is directly transmitted to the supporting beam 41 through the enclosure 2.
Referring to fig. 6, fixing bolts 311 are inserted into both sides of the moving plate 31, a plurality of threaded holes 111 are formed in the clamping plates 11 located in the enclosure 2, the plurality of threaded holes 111 are distributed at equal intervals along the length direction of the clamping plates 11, and the fixing bolts 311 on the moving plate 31 pass through the threaded holes 111 to fix the moving plate 31 between the two clamping plates 11.
When a foundation pit is excavated, a plurality of connecting pieces 3 are arranged on the inner side of the enclosure 2 at intervals, earthwork in the enclosure 2 is reduced along with excavation of the foundation pit, the connecting pieces 3 slide downwards along the baffle, when the enclosure 2 needs to be supported and reinforced, the connecting pieces 3 on the uppermost layer are adjusted to the same horizontal plane and fixed, the supporting beams 41 are arranged on the connecting pieces 3 on the uppermost layer and are supported along with the enclosure 2; along with enclose the subassembly of the interior earthwork of fender 2 and reduce, from last to installing multilayer supporting beam 41 down to enclose fender 2 through supporting component 4 and support the reinforcement in the engineering of foundation ditch excavation.
The implementation principle of the foundation pit excavation earthwork landslide prevention support structure is as follows: when a foundation pit is excavated, a plurality of steel sheet piles 1 are sequentially inserted into the foundation pit, the steel sheet piles 1 are connected end to form an enclosure 2, the enclosure 2 encloses a rectangular foundation pit excavation construction space, a reinforcing beam 51 is arranged outside the enclosure 2 to support and reinforce the enclosure 2, and reinforcing rods 52 penetrating through the reinforcing beam 51 connect the reinforcing beams 51 around the enclosure 2 into a whole; install supporting component 4 in enclosing fender 2 and support enclosing fender 2, enclose fender 2 and block the peripheral earthwork of foundation ditch, prevent the landslide, reinforcing beam 51 and supporting component 4 support enclosing fender 2, need not to enclose purlin 21 at enclosing 2 internal setting steel of fender, can not occupy and enclose the construction space in fender 2, and the construction machinery of being convenient for is enclosing and is being under construction in fender 2.
The application also discloses a construction method of the foundation pit excavation earthwork landslide prevention support structure, which comprises the following steps:
a construction method of a foundation pit excavation earthwork landslide prevention support structure comprises the following steps:
s1: the steel sheet piles 1 are hoisted to the pile inserting points of the foundation pit through hoisting machinery, the steel sheet piles 1 are vertically driven into the foundation pit through pile sinking machinery, a plurality of steel sheet piles 1 are connected end to form a surrounding barrier 2, and the surrounding barrier 2 surrounds a rectangular construction space in the foundation pit;
s2: vertically driving a plurality of reinforcing beams 51 into the foundation outside the enclosure 2 through a pile sinking machine, and enabling through holes on the plurality of reinforcing beams 51 to be located on the same horizontal plane;
s3: the reinforcing rods 52 penetrate through the plurality of reinforcing beams 51 through the through holes, and two adjacent reinforcing rods 52 are fixedly connected through the L-shaped hoop 521;
s4: reinforcing piles 54 are driven into the foundation outside the four sides of the enclosure 2, and the pull cables 53 are connected between the reinforcing piles 54 and the reinforcing rods 52, so that the pull cables 53 are in a straightening and tightening state;
s5: determining the number of the supporting components 4 in the enclosure 2 according to the design depth of the foundation pit;
s6: installing a plurality of connecting pieces 3 on the inner wall of the enclosure 2;
s7: along with the excavation of the foundation pit in the enclosure 2, the connecting pieces 3 are fixed layer by layer from top to bottom, and the supporting beams 41 are arranged on the connecting pieces 3 on the same layer by layer.
Finally, it should be noted that: in the description of the present application, it is to be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a foundation ditch excavation earthwork landslide prevention envelope, includes that the fender (2) that encloses that forms is spliced in proper order by polylith steel sheet pile (1), enclose fender (2) and enclose into the construction space of a rectangle in foundation ditch department, its characterized in that: enclose and be provided with connecting piece (3) and supporting component (4) on keeping off (2) inner wall, supporting component (4) are rectangular frame, supporting component (4) are provided with a plurality ofly along vertical direction, supporting component (4) are connected on enclosing fender (2) through connecting piece (3), it is provided with reinforcement (5) outward to enclose fender (2), reinforcement (5) are used for strengthening enclosing fender (2).
2. The foundation pit excavation earthwork landslide prevention enclosure structure of claim 1, wherein: cardboard (11) all are provided with to the both sides of steel sheet pile (1) recess, reinforcement (5) are including reinforcing beam (51), reinforcing beam (51) are inserted and are established between two adjacent steel sheet piles (1) that the recess orientation is the same, reinforcing beam (51) are the I-steel, the pterygoid lamina of reinforcing beam (51) offsets with cardboard (11) on two steel sheet piles (1).
3. The foundation pit excavation earthwork landslide prevention enclosure structure of claim 2, wherein: through holes are formed in webs of the reinforcing beams (51), and reinforcing rods (52) penetrate through the through holes in the reinforcing beams (51).
4. The foundation pit excavation earthwork landslide prevention enclosure structure of claim 3, wherein: two adjacent reinforcing rods (52) are connected, the reinforcing rods (52) are provided with inhaul cables (53), reinforcing piles (54) are arranged at positions, far away from the enclosure (2), of a plurality of sides of the enclosure (2), and the inhaul cables (53) are connected with the fixing piles.
5. The foundation pit excavation earthwork landslide prevention enclosure structure of claim 2, wherein: supporting component (4) are including supporting beam (41) and stiffener (42), supporting beam (41) are the I-steel, supporting beam (41) have many and many supporting beam (41) respectively with enclose a plurality of lateral walls that keep off (2) and laminate mutually, two adjacent supporting beam (41) joint, stiffener (42) set up two adjacent between supporting beam (41), just stiffener (42) are located between the web and the pterygoid lamina of supporting beam (41).
6. The foundation pit excavation earthwork landslide prevention support structure of claim 5, wherein: the reinforcing rod (42) is arranged on two sides of the supporting beam (41), the opposite-pulling bolt (43) penetrates through the reinforcing rod (42), and the opposite-pulling bolt (43) penetrates through the supporting beam (41) and then is connected with the reinforcing rod (42) on the other side of the supporting beam (41).
7. The foundation pit excavation earthwork landslide prevention enclosure structure of claim 5, wherein: connecting piece (3) include movable plate (31), set up place case (32) on movable plate (31), movable plate (31) set up on enclosing fender (2) inner wall, just movable plate (31) slide to set up between two adjacent steel sheet piles (1) that the recess orientation is the same, the both ends of movable plate (31) are inconsistent with cardboard (11) inner wall on two steel sheet piles (1) respectively, it is the rectangle box that both sides run through to place case (32), the top of placing case (32) is articulated to be provided with apron (33), supporting beam (41) are placed in placing case (32).
8. The foundation pit excavation earthwork landslide prevention support structure of claim 7, wherein: fixing bolts (311) penetrate through two sides of the moving plate (31), a plurality of threaded holes (111) are formed in the clamping plate (11) located in the enclosing barrier (2), and the fixing bolts (311) penetrate through the threaded holes (111) to connect the moving plate (31) to the clamping plate (11).
9. The foundation pit excavation earthwork landslide prevention enclosure structure of claim 4, wherein: the connecting pieces (3) are divided into a plurality of groups in the enclosure (2), and the connecting pieces (3) in the same group are positioned on the same horizontal plane.
10. A construction method for the foundation pit excavation earthwork landslide prevention building envelope according to claim 9, wherein:
s1: the steel sheet piles (1) are hoisted to pile inserting points through hoisting machinery, then the steel sheet piles (1) are driven into a foundation through pile sinking machinery, a plurality of steel sheet piles (1) are connected end to form enclosing barriers (2), and the enclosing barriers (2) enclose a rectangular construction space;
s2: driving a plurality of reinforcing beams (51) into the foundation outside the enclosure (2) through a pile sinking machine;
s3: the reinforcing rods (52) are arranged among the reinforcing beams (51) in a penetrating manner through holes on the reinforcing beams (51), and the reinforcing rods (52) are connected into a whole;
s4: a fixed pile is driven into the foundation outside the enclosure (2), and a guy cable (53) is connected between the fixed pile and the reinforcing rod (52);
s5: according to the design depth of the foundation pit, a plurality of connecting pieces (3) are arranged in the enclosure (2);
s6: along with the increase of the excavation depth of the foundation pit, the supporting components (4) are sequentially arranged on the multilayer connecting pieces (3) from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210789457.XA CN115305919A (en) | 2022-07-06 | 2022-07-06 | Foundation pit excavation earthwork landslide prevention enclosure structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210789457.XA CN115305919A (en) | 2022-07-06 | 2022-07-06 | Foundation pit excavation earthwork landslide prevention enclosure structure and construction method thereof |
Publications (1)
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003160944A (en) * | 2001-11-26 | 2003-06-06 | Hokukon Co Ltd | Construction method for precast concrete reservoir |
| CN102472032A (en) * | 2010-04-22 | 2012-05-23 | 住友金属工业株式会社 | Combined steel sheet piling wall |
| CN206279536U (en) * | 2016-12-09 | 2017-06-27 | 中铁建大桥工程局集团第二工程有限公司 | A kind of steel for supporting steel sheet pile encloses purlin |
| CN109183807A (en) * | 2018-09-17 | 2019-01-11 | 江苏东合南岩土科技股份有限公司 | Removable bracing members and its construction method |
| CN211690364U (en) * | 2019-12-30 | 2020-10-16 | 青岛华德仪表工程有限公司 | Steel sheet pile strutting arrangement |
| CN112627190A (en) * | 2020-12-15 | 2021-04-09 | 广西建工集团第一安装有限公司 | Foundation pit channel steel sheet pile section steel supporting system and construction method |
| CN114086568A (en) * | 2021-12-23 | 2022-02-25 | 中城建(福建)建筑设计研究院有限公司 | Foundation pit support structure and construction method thereof |
| CN114232643A (en) * | 2022-01-05 | 2022-03-25 | 浙江竤伟集团有限公司 | Comprehensive pipe rack foundation pit supporting structure and construction method thereof |
| CN114687355A (en) * | 2022-04-14 | 2022-07-01 | 北京京水建设集团有限公司 | Ship lock foundation pit excavation and supporting structure and construction method thereof |
-
2022
- 2022-07-06 CN CN202210789457.XA patent/CN115305919A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003160944A (en) * | 2001-11-26 | 2003-06-06 | Hokukon Co Ltd | Construction method for precast concrete reservoir |
| CN102472032A (en) * | 2010-04-22 | 2012-05-23 | 住友金属工业株式会社 | Combined steel sheet piling wall |
| CN206279536U (en) * | 2016-12-09 | 2017-06-27 | 中铁建大桥工程局集团第二工程有限公司 | A kind of steel for supporting steel sheet pile encloses purlin |
| CN109183807A (en) * | 2018-09-17 | 2019-01-11 | 江苏东合南岩土科技股份有限公司 | Removable bracing members and its construction method |
| CN211690364U (en) * | 2019-12-30 | 2020-10-16 | 青岛华德仪表工程有限公司 | Steel sheet pile strutting arrangement |
| CN112627190A (en) * | 2020-12-15 | 2021-04-09 | 广西建工集团第一安装有限公司 | Foundation pit channel steel sheet pile section steel supporting system and construction method |
| CN114086568A (en) * | 2021-12-23 | 2022-02-25 | 中城建(福建)建筑设计研究院有限公司 | Foundation pit support structure and construction method thereof |
| CN114232643A (en) * | 2022-01-05 | 2022-03-25 | 浙江竤伟集团有限公司 | Comprehensive pipe rack foundation pit supporting structure and construction method thereof |
| CN114687355A (en) * | 2022-04-14 | 2022-07-01 | 北京京水建设集团有限公司 | Ship lock foundation pit excavation and supporting structure and construction method thereof |
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