Foundation pit temporary driving ramp for basement construction

Abstract

The invention relates to the technical field of foundation pit supporting, and particularly discloses a foundation pit temporary driving ramp for basement construction. The temporary driving ramp for the foundation pit comprises an upper-layer trapezoidal soil area and a lower-layer vertical soil area. The two sides of the vertical soil area are wrapped by the multiple spliced surrounding plates. And a plurality of opposite pull rods are mounted in the vertical soil area. The opposite pull rod comprises a wave section and two straight rod sections, and the two straight rod sections are connected to the two ends of the wave section. A through cavity penetrating through openings in the two ends of the two straight rod sections and the two wave sections is formed in the opposite-pull rod. And a plurality of through holes are formed in the pipe wall of the wave section. The wave sections are located between the multiple surrounding plates on the two sides. And the straight rod section on each side penetrates through the coaming. The outer walls of the straight rod sections are provided with threads, and the straight rod sections on the two sides are locked on the surrounding plates on the two sides through locking pieces in a threaded connection mode. And the lower layer is a vertical soil area and occupies a small area. And the coaming has strong supporting force on the vertical soil area, so that the coaming is not easy to deform and has a firm structure. The opposite-pull rods not only can oppositely pull the surrounding plates on the two sides, but also have the drainage effect, and the construction cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of foundation pit support, and in particular to a temporary vehicle ramp for a foundation pit used for building a basement. Background Art

[0002] When building a basement, a foundation pit needs to be dug on the ground. After the foundation pit is dug, in order to transport materials back and forth into the large foundation pit, a temporary vehicle ramp needs to be built in the foundation pit. The temporary vehicle ramp extends from the top of the foundation pit to the bottom of the foundation pit for transport vehicles to travel back and forth.

[0003] Some temporary vehicle ramps are paved with pure soil. For large basements, the foundation pits are deep and large in area. Correspondingly, the height of the temporary vehicle ramps built inside the foundation pits is also large. In order to prevent the soil on both sides of the temporary vehicle ramp from collapsing, the two sides of the ramp are generally tilted outward from the top to the bottom. Especially for the slope section at the edge of the foundation pit, the drop from the top to the bottom of the foundation pit is large, and the area of ​​the slope extending to both sides is large, which makes the temporary vehicle ramp occupy too much area, occupies too much work site, and is not convenient for working inside the foundation pit. During the use of the temporary vehicle ramp, due to the influence of its own soil gravity and the pressure of the transport vehicle, even if the two sides are tilted, the ramp soil is still easy to spread to both sides, and a large pit will form on the ramp road surface. Summary of the invention

[0004] In view of the fact that some temporary vehicle ramps in large deep foundation pits used for building basements are paved with pure soil, there are problems such as occupying too large an area, the soil on the slope is easily stressed and spreads to both sides, and forms large pits on the slope road surface. This application proposes a temporary vehicle ramp for the foundation pit for building basements with a small area, and adopts the following technical solution to solve this problem.

[0005] A temporary vehicle ramp for a foundation pit used for building a basement, comprising a trapezoidal soil area with a trapezoidal cross section on the upper layer and a vertical soil area with a square cross section on the lower layer. The two sides of the trapezoidal soil area are wrapped with concrete surfaces. The two sides of the vertical soil area are wrapped by a plurality of spliced ​​enclosures. The two sides of the vertical soil area extend beyond the two sides of the trapezoidal soil area.

[0006] The vertical soil area is equipped with a plurality of tie rods. The tie rods include a wave section and two straight rod sections, and the two straight rod sections are connected to the two ends of the wave section. The tie rods have a through cavity inside that passes through the two straight rod sections and the openings at both ends of the wave section. A plurality of through holes are provided on the tube wall of the wave section. Each through hole is connected to the through cavity. The wave section is located between the plurality of enclosures on both sides. The straight rod section on each side passes through the enclosure on that side. The outer wall of the straight rod section is threaded, and a locking piece is used to lock the straight rod sections on both sides to the enclosures on both sides in a threaded connection manner.

[0007] By adopting the above technical solution, a temporary vehicle ramp for the foundation pit for the basement is constructed. The upper layer is a trapezoid, that is, the two sides are inclined outward, and the inclined surfaces are wrapped with concrete, so that the inclined surfaces on both sides cannot collapse. The upper trapezoid can guide the car to drive in the middle of the road, and the ramp structure is relatively stable. The lower layer is a vertical soil area, that is, the two sides are vertical surfaces. Compared with the trapezoidal roadbed with two sides inclined outward, the vertical soil area occupies a small area. The two sides of the vertical soil area are wrapped by multiple spliced ​​enclosures. The enclosures have strong support for the vertical soil area, making it not easy to deform and the structure is firm. The soil in the vertical soil area is not easy to spread to the sides, and the road surface is not easy to collapse. The tie rod can not only pull the enclosures on both sides, but also play a role in drainage, reducing the construction cost. Since the panels on both sides of the ramp need to support the soil inside, the panels on both sides are preferably set to a closed connection form so that the soil is not easily squeezed out from the gaps between adjacent panels. However, due to the sealing structure of the panels, it is not easy to drain water, which easily causes the soil to become loose. The through holes and through cavities designed in the wave section of the tie rod of the present application can infiltrate water and discharge it from the straight rod sections at both ends of the ramp, making the internal soil relatively hard and solid, with a firm structure, and not prone to collapse downward or to the sides, thus providing strong support for the vehicles above. The wave section of the tie rod also has the function of buffering vehicle pressure, reducing the squeezing effect of the locking piece on the panel when the vehicle presses down on the road surface, and reducing the probability of deformation of the panel at the locking piece due to mutual squeezing between the panel and the locking piece, loosening of the locking piece due to squeezing of the panel, and cracking or breaking of the tie rod.

[0008] A preferred solution of the temporary vehicle ramp for the foundation pit used for building the basement is that the enclosure includes a main board, a left hook and a right hook. The left hook includes a first longitudinal board, a second transverse board, a third longitudinal board and a fourth transverse board connected in sequence. The first longitudinal board is vertically connected to one side of the main board. The first longitudinal board and the third longitudinal board are connected to the two ends of the same side of the second transverse board. The second transverse board and the fourth transverse board are located at the two ends of the same side of the third longitudinal board. The fourth transverse board and the main board are respectively located on both sides of the first longitudinal board. The fourth transverse board is spaced toward the first longitudinal board.

[0009] The right hook portion includes a fifth longitudinal plate and a sixth transverse plate. The fifth longitudinal plate is vertically connected to the other side of the main plate. The sixth transverse plate and the main plate are connected to two ends of the same side of the fifth longitudinal plate.

[0010] The right hook portion of one of the enclosures can be adaptively axially slid into the left hook portion of another of the enclosures, specifically, the sixth transverse plate slides between the second transverse plate and the fourth transverse plate, the fifth longitudinal plate slides between the first longitudinal plate and the fourth transverse plate, and the fourth transverse plate slides between the main plate and the sixth transverse plate.

[0011] By adopting the above technical solution, the structures on both sides of each enclosure can be the same, and enclosures of different lengths can be mass-produced to meet the needs of wrapping both sides of the ramp. Adjacent enclosures can be axially slid in and hooked to each other, and are not easily pulled apart laterally. They have strong wrapping and supporting forces on the vertical soil area, making the ramp structure stable.

[0012] A preferred solution of the temporary vehicle ramp for building a basement pit is that the thickness of the sixth horizontal plate is equal to the gap width between the second horizontal plate and the fourth horizontal plate. The thickness of the fifth vertical plate is equal to the gap width between the first vertical plate and the fourth horizontal plate. The thickness of the fourth horizontal plate is equal to the gap width between the main plate and the sixth horizontal plate.

[0013] By adopting the above technical solution, the two ends of adjacent panels can be seamlessly nested with each other, the structure is firm, and soil is not easy to seep out from between the adjacent panels. The spliced ​​panels have strong supporting force for the soil area and good wrapping effect for the soil area.

[0014] A preferred solution for the temporary vehicle ramp for the foundation pit used to build the basement is that the main boards of the multiple panels spliced ​​on each side are aligned with each other, and the left hook and the right hook face inward, so that the outer side surfaces of the multiple panels spliced ​​on each side are flat planes.

[0015] By adopting the above technical solution, the outer surfaces on both sides of the lower vertical soil area are flat planes, which is conducive to installing connectors connecting multiple panels on the outer surface to enhance structural stability.

[0016] A preferred solution of the temporary ramp for building a basement pit is that the enclosure is square, and the tops of the multiple enclosures spliced ​​on both sides of the vertical soil area are arranged in a stepped manner from high to low. Each main plate passes through one or more tie rods.

[0017] By adopting the above technical solution, the splicing of the ramp side support structure can be completed using square panels, which can be reused in a variety of scenarios without the need to customize panels of a specific shape, thereby reducing construction costs. By passing the tie rod through the main board, the panel can be limited and supported, and interference with the left hook and the right hook can be avoided.

[0018] A preferred solution of the temporary vehicle ramp for the foundation pit used for building the basement is that the temporary vehicle ramp for the foundation pit used for building the basement further comprises a crown beam. The crown beam is installed on the outer side of the plurality of enclosures spliced ​​on each side. The straight rod section at the top of each enclosure passes through the crown beam. The locking member abuts against the crown beam to lock the crown beam on the enclosure.

[0019] By adopting the above technical solution, the spliced ​​panels on each side are connected by a crown beam, which strengthens the structural firmness of the spliced ​​panels. The spliced ​​panels on each side are aligned with each other to form a whole plane with the plane facing outward, and the contact area with the crown beam is large, and the structure is more solid.

[0020] A preferred solution for the temporary vehicle ramp for the foundation pit used for building a basement is that the wave section is in a horizontal plane.

[0021] By adopting the above technical solution, the horizontal wave section can more easily drain water.

[0022] A preferred solution of the temporary ramp for building a basement pit is that the two sides of each convex arc of the wave section are connected by springs. Each spring is parallel to the straight rod section. When not squeezed, the spring is in a natural extension state or a stretched state with a deformation amount of ≤10%.

[0023] By adopting the above technical solution, when not squeezed, the spring is in a natural extended state or a slightly stretched state. After the tie rod is squeezed and stretched to both sides, the spring is stretched and has a contraction force, which tends to contract the stretched tie rod to its original state, thereby improving the ability of the tie rod to restore its original shape and increasing the service life of the tie rod.

[0024] A preferred solution of the temporary vehicle ramp for the foundation pit used for building the basement is that the vertical soil area also has a plurality of mesh cylinders, the mesh cylinders are straight cylinder-shaped, and the axial direction of the mesh cylinders is coaxial or parallel to the straight rod segment. A mesh cylinder is placed outside each wave segment. A plurality of fragments are filled between the mesh cylinder and the wave segment, and the plurality of fragments completely wrap the wave segment. There are gaps between adjacent fragments. The particle size of the fragments is larger than the diameter of the through hole.

[0025] By adopting the above technical solution, the mesh tube restrains the fragments, and the fragments can prevent most of the concrete from penetrating into the tie rods. The gaps between the fragments can seep water, so the flowing water in the soil layer can seep into the tie rods and be discharged from the ramps at both ends of the tie rods. The mesh tube that wraps the wave section is straight, simple in structure, and easy to prepare.

[0026] A preferred solution for the temporary vehicle ramp in the foundation pit for building a basement is that a water guide mechanism is installed on each side of the trapezoidal soil area; the water guide mechanism includes a water guide pipe, a metal mesh cover and a plurality of crushed stones; a section of the pipe wall of the water guide pipe is provided with a plurality of penetrating water guide holes, and the section is located in the trapezoidal soil area; another section of the pipe wall of the water guide pipe is not provided with water guide holes, and the section is located outside the trapezoidal soil area; the metal mesh cover is sleeved on the section of the water guide pipe located in the trapezoidal soil area; the crushed stones are filled in the metal mesh cover; and the particle size of the crushed stones is larger than the diameter of the water guide holes.

[0027] By adopting the above technical solution, the metal mesh covers the gravel, and the gravel is wrapped around the water pipe in a limited manner. The water in the trapezoidal soil area can pass through the gap between the metal mesh covers and the gravel, and seep into the water pipe and be discharged from the ramp, so as to prevent the concrete surfaces wrapped on both sides of the trapezoidal soil area from leaking water and causing the road to be muddy.

[0028] In summary, the temporary vehicle ramp for the foundation pit used for building the basement in the present application occupies a small area, has a solid structure, good drainage effect, low construction cost, is easy to disassemble, and is convenient for foundation pit construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure for setting up a temporary vehicle ramp in the foundation pit.

[0030] Figure 2 for Figure 1 Section view along plane AA.

[0031] Figure 3 for Figure 2 A magnified view of area B.

[0032] Figure 4 for Figure 1 Side structural diagram of the temporary vehicle ramp.

[0033] Figure 5 for Figure 4 A top view of the structure of the enclosure.

[0034] Figure 6 for Figure 4 Top view of the structure.

[0035] Figure 7 for Figure 6 Magnified view of area C.

[0036] Figure 8 for Figure 6 The structure diagram of the tie rod.

[0037] Fig. 9 for Figure 6 A combination diagram of the tension rods, locking parts and mesh tubes hidden in the vertical soil area.

[0038] 1. foundation pit; 2. trapezoidal soil area; 3. vertical soil area; 4. guardrail; 5. concrete layer; 6. water guide mechanism; 601. water guide pipe; 602. metal mesh cover; 6011. water guide hole; 7. enclosure; 701. main board; 702. left hook; 703. right hook; 7021. first longitudinal board; 7022. second transverse board; 7023. third longitudinal board; 7024. fourth transverse board; 7031. fifth longitudinal board; 7032. sixth transverse board; 8. tension rod; 801. wave section; spring 16; 802. straight rod section; 803. through hole; 9. mesh tube; 10. locking piece; 11. crown beam; 12. fan-shaped soil road; 13. drainage ditch; 14. water collection well; 15. submersible pump; 17. suction pipe. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the following embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] like Figure 1 A temporary ramp for driving a vehicle in a foundation pit for building a basement is set up in a foundation pit 1. The foundation pit 1 is a pit dug from the ground downwards for building a basement. In order to facilitate the transportation of materials, the temporary ramp is built along the ground at the edge of the foundation pit 1 to the bottom of the foundation pit 1 for vehicles to drive.

[0041] like Figure 2 The temporary vehicle ramp for the foundation pit used for building the basement includes a trapezoidal soil area 2 with a trapezoidal upper cross-section and a vertical soil area 3 with a square lower cross-section. The trapezoidal soil area 2 and the vertical soil area 3 are both long strips. Preferably, the cross-section of the trapezoidal soil area 2 is an isosceles trapezoid. The lower base of the trapezoidal soil area 2 is connected to the upper side of the vertical soil area 3, and both sides of the vertical soil area 3 are located outside the two ends of the lower base of the trapezoidal soil area 2. Guardrails 4 are also provided on both sides of the upper base of the trapezoidal soil area 2. The upper surface of the trapezoidal soil area 2 is a vehicle lane.

[0042] The trapezoidal soil area 2 is formed by soil accumulation. The two sides of the trapezoidal soil area 2 are covered with wire mesh, and then a concrete layer 5 is sprayed. Since the concrete layer 5 is not easy to penetrate water, after the trapezoidal soil area 2 is soaked in water, it is not easy for water to seep out from the concrete layer 5. Therefore, a plurality of water guides 6 are installed in the trapezoidal soil area 2. The water guides 6 penetrate the concrete layer 5 and are used to discharge the flowing water inside the trapezoidal soil area 2 to keep the road surface dry. Therefore, before spraying the concrete layer 5, the water guides 6 are also inserted into the trapezoidal soil area 2 in advance.

[0043] like Figure 3The water guiding mechanism 6 includes a water guiding pipe 601, a metal mesh cover 602 and a plurality of gravel blocks. The water guiding pipe 601 may be made of plastic. The water guiding pipe 601 is inserted into the side of the trapezoidal soil area 2 at an angle upward. A section of the pipe wall of the water guiding pipe 601 located in the trapezoidal soil area 2 is evenly provided with a plurality of water guiding holes 6011, and the metal mesh cover 602 is sleeved outside the section of the pipe wall. The metal mesh cover 602 is filled with gravel blocks. The particle size of the gravel blocks is larger than the diameter of the water guiding holes 6011. The gaps between the gravel blocks can leak water, and the gravel blocks can prevent most of the soil from being pressed into the water guiding holes 6011, so that the water guiding holes 6011 can be kept in an open state. A section of the pipe wall of the water guiding pipe 601 extending out of the trapezoidal soil area 2 does not have a water guiding hole 6011, and it is tilted downward to guide the flowing water inside the trapezoidal soil area 2.

[0044] like Figure 4 The vertical soil area 3 is formed by soil accumulation and has a square cross section. Both sides of the trapezoidal soil area 2 are supported and wrapped by a plurality of mutually spliced ​​enclosures 7. Each enclosure 7 is arranged vertically.

[0045] like Figure 5 , the enclosure 7 includes a main board 701, a left hook portion 702 and a right hook portion 703. The left hook portion 702 includes a first longitudinal plate 7021, a second transverse plate 7022, a third longitudinal plate 7023 and a fourth transverse plate 7024 connected in sequence. The first longitudinal plate 7021 is vertically connected to one side of the main board 701. The first longitudinal plate 7021 and the third longitudinal plate 7023 are connected to both ends of the same side of the second transverse plate 7022. The second transverse plate 7022 and the fourth transverse plate 7024 are located at both ends of the same side of the third longitudinal plate 7023. The fourth transverse plate 7024 and the main board 701 are respectively located on both sides of the first longitudinal plate 7021. The fourth transverse plate 7024 is spaced toward the first longitudinal plate 7021.

[0046] The right hook portion 703 includes a fifth longitudinal plate 7031 and a sixth transverse plate 7032. The fifth longitudinal plate 7031 is vertically connected to the other side of the main plate 701. The sixth transverse plate 7032 and the main plate 701 are connected to both ends of the same side of the fifth longitudinal plate 7031.

[0047] like Figure 6 and Figure 7The splicing method of two adjacent panels 7 is that the left hook 702 of one panel 7 is inserted into the right hook 703 of the other panel 7 along the vertical direction, or the right hook 703 of one panel 7 is inserted into the left hook 702 of the other panel 7 along the vertical direction. For example, for the latter, the sixth horizontal plate 7032 slides downwardly into the space between the second horizontal plate 7022 and the fourth horizontal plate 7024 along the vertical direction, and the fifth longitudinal plate 7031 slides into the space between the first longitudinal plate 7021 and the fourth horizontal plate 7024; the main board 701 and the sixth horizontal plate 7032 clamp the fourth horizontal plate 7024, and the main board 701 and the sixth horizontal plate 7032 slide downward relative to the fourth horizontal plate 7024, so that the fourth horizontal plate 7024 is embedded between the main board 701 and the sixth horizontal plate 7032.

[0048] After the enclosure panels 7 on each side are spliced ​​together, each main board 701 is located on the same plane, with the main board 701 facing outward and the left hook 702 and the right hook 703 facing inward, so that each of the spliced ​​enclosure panels 7 forms a flat plane, which is convenient for installing other components on the outer surface of the enclosure panel 7.

[0049] For the above left hook 702 and right hook 703, it is preferred that the thickness of the sixth horizontal plate 7032 is equal to the gap width between the second horizontal plate 7022 and the fourth horizontal plate 7024, the thickness of the fifth longitudinal plate 7031 is equal to the gap width between the first longitudinal plate 7021 and the fourth horizontal plate 7024, and the thickness of the fourth horizontal plate 7024 is equal to the gap width between the main plate 701 and the sixth horizontal plate 7032. Then, the gap between the two adjacent enclosures 7 after splicing is very small, and the soil is not easy to leak out from between the two enclosures 7. The enclosures 7 spliced ​​on both sides strongly support the internal soil, so that the shape of the vertical soil area 3 is stable.

[0050] The enclosures 7 spliced ​​together are not enough to support the soil inside, so the ramp is also provided with tie rods 8 to fix the enclosures 7 on both sides. Since the gap between the spliced ​​enclosures 7 is very small, it is not conducive to water seeping out of the gap. Too much water in the soil inside the enclosures 7 will make the soil loose. Therefore, it is necessary to guide the water in the soil inside the enclosures 7 out of the enclosures 7.

[0051] like Figure 8In order to facilitate installation and reduce structural redundancy, the present application uses the tie rod 8 as a drainage mechanism, and specifically designs the tie rod 8 to be tubular, with a through cavity inside that runs through both ends of the tie rod 8. The tie rod 8 can be made of metal. The middle section of the tie rod 8 is a wave section 801, and the two ends are straight rod sections 802. The wave section 801 is arranged horizontally, and a plurality of through holes 803 are evenly arranged on the wall of the section, and the through holes 803 lead to the through cavity. The wave section 801 is between the enclosures 7 on both sides. The straight rod sections 802 at both ends are located outside the enclosures 7 on both sides, and no through holes 803 are arranged on the straight rod sections 802, and external threads are arranged on the outer wall of the straight rod sections 802. Each straight rod section 802 passes through the main board 701 of a enclosure 7. According to the height of each enclosure 7 exposed from the bottom of the foundation pit 1, the higher the enclosure 7 is, the more tie rods 8 can be passed through its main board 701 to connect the enclosures 7 on both sides. Each enclosure 7 can pass through one or more tie rods 8.

[0052] like Fig. 9 , a straight cylindrical net tube 9 is also set outside each wave section 801, and the net tube 9 can be a wire mesh. The net tube 9 is filled with broken pieces, which can be broken stones, to completely wrap the wave section 801. The particle size of the broken pieces is larger than the diameter of the through hole 803. The gaps between the broken pieces can allow water to pass through, and the broken pieces can prevent most of the soil from drilling into the through hole 803. The flowing water in the vertical soil area 3 can pass through the gaps between the broken pieces and through the through hole 803, enter the through cavity, and be discharged from both ends of the tie rod 8.

[0053] The two straight rod segments 802 extend out of the enclosure panels 7 on both sides, and the outer wall of each straight rod segment 802 has an external thread. The two straight rod segments 802 are screwed into a locking piece 10 with an internal thread, such as a nut, to press the enclosure panels 7 on both sides against the soil wall of the vertical soil area 3.

[0054] The pair of tie rods 8 can not only fasten the panels 7 on both sides, but also the wave section 801 inside thereof has a certain expansion space. When a vehicle is driving on the ramp, the wave section 801 can be slightly extended to buffer the tension of the panels 7 on both sides caused by the downward pressure of the vehicle, and the pulling effect of the locking member 10 on the panels 7. This makes it difficult for the panels 7 to deform at the connection of the locking member 10, the wave section 801 is not easy to be broken, and the locking member 10 is not easy to slip off the straight rod section 802 and become loose, thereby improving the service life of the panels 7, the tie rods 8 and the locking member 10. In order to further enhance the resilience of the pair of tie rods 8, springs 16 are used to connect the two sides of each convex arc inside the wave section 801. Each spring 16 is parallel to the straight rod section 802. When not squeezed, the spring 16 is in a natural extension state or a tension state with a deformation amount of ≤10%. When a vehicle is traveling on the road, the wave section 801 is deformed by pressure, and the spring 16 is slightly extended. After the vehicle passes, the spring 16 recovers, which increases the rebound speed of the wave section 801, so that the wave section 801 can maintain its original shape for a long time, so that the vertical soil area 3 maintains structural stability, and increases the service life of the tie rod 8. The tie rod 8 has both fastening and drainage functions, reducing the redundancy caused by installing two functional structures separately, and improving installation convenience and efficiency.

[0055] After the reinforcement of the tie rods 8, the overall structure of the panels 7 spliced ​​on both sides is relatively strong. However, in order to further improve the structural stability of the spliced ​​panels 7, the present application also adds a crown beam 11 outside the spliced ​​panels 7 to connect the straight rod segments 802 on each side in series, so as to stabilize the spliced ​​panels 7. Specifically, the crown beam 11 connects the top straight rod segment 802 of each panel 7 in series. The crown beam 11 is in the shape of a straight bar, and the top straight rod segment 802 of each panel 7 passes through the crown beam 11. The locking piece on the straight rod segment 802 locks the crown beam 11 on the panel 7. The multiple main boards 701 spliced ​​on each side are flat planes, and the crown beam 11 fits the flat plane, aligning and connecting the multiple panels 7, so that a single panel 7 is not easy to tilt out of the flat plane.

[0056] Since the ramp is a slope from high to low, the upper ends of the panels 7 spliced ​​on both sides are also arranged from high to low. The lower ends of the panels 7 can be inserted into the ground for alignment. The panels 7 are square, so the upper ends of the multiple panels 7 arranged from high to low are in a step-like shape. The crown beam 11 connecting the uppermost straight rod section 802 of each panel 7 is also inclined, and its inclination angle is equal to the inclination angle of the ramp.

[0057] The temporary vehicle ramp for the foundation pit used for building the basement can be directly attached to the inner bottom surface of the foundation pit 1; Figure 1 A fan-shaped dirt road 12 can also be extended from the bottom of the temporary vehicle ramp to fit the inner bottom surface of the foundation pit 1, which makes it more convenient for vehicles to turn.

[0058] like Figure 1 The ramp is installed in the foundation pit 1, and a drainage ditch 13, a water collection well 14 and a submersible pump 15 are also arranged at the bottom of the foundation pit 1. A part of the drainage ditch 13 is arranged around the bottom edge of the foundation pit 1, and the other part is arranged below the outlet of the straight rod section 802. Both parts converge into the water collection well 14. A submersible pump 15 is installed in the water collection well 14. The water in the water collection well 14 is pumped out of the foundation pit 1 through the submersible pump 15 and the pumping pipe 17.

[0059] The temporary ramp for driving on the foundation pit used for building the basement above adopts the structure of the upper trapezoidal soil area 2 and the lower vertical soil area 3, which occupies a small area. The tension rod 8 used has both the tension fixing function and the drainage function, and also has the functions of buffering pressure and rebounding, so that the structure of the enclosure 7 on both sides is stable. The enclosure 7 spliced ​​on both sides cannot be pulled apart horizontally through the mutual vertical nesting of the left hook 702 and the right hook 703 on both sides, so that the structure of the spliced ​​enclosure 7 is stable, the support force for the vertical soil area 3 is strong, the soil is not easy to spread to both sides, the road surface is not easy to collapse, and the driving of the transport vehicles is strongly supported, which speeds up the pace of building the basement.

[0060] Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A temporary vehicle ramp for a foundation pit used for building a basement, characterized in that: It comprises a trapezoidal soil area (2) with a trapezoidal upper cross section and a vertical soil area (3) with a square lower cross section; both sides of the trapezoidal soil area (2) are wrapped with concrete surfaces; both sides of the vertical soil area (3) are wrapped by a plurality of spliced ​​enclosures (7); both sides of the vertical soil area (3) extend beyond both sides of the trapezoidal soil area (2); The vertical soil area (3) is installed with a plurality of tie rods (8); the tie rods (8) include a wave section (801) and two straight rod sections (802), and the two straight rod sections (802) are connected to the two ends of the wave section (801); the tie rods (8) have a through cavity penetrating the two straight rod sections (802) and the openings at both ends of the wave section (801); a plurality of through holes (803) are provided on the tube wall of the wave section (801); each of the through holes (803) is connected to the through cavity; the wave section (801) is located between the plurality of enclosures (7) on both sides; the straight rod section (802) on each side passes through the enclosure (7) on that side; the outer wall of the straight rod section (802) is threaded, and a locking piece (10) is used to lock the straight rod sections (802) on both sides to the enclosures (7) on both sides in a threaded connection manner.

2. The temporary vehicle ramp for foundation pit construction for basement construction according to claim 1 is characterized in that: The enclosure (7) comprises a main board (701), a left hook portion (702) and a right hook portion (703); the left hook portion (702) comprises a first longitudinal plate (7021), a second transverse plate (7022), a third longitudinal plate (7023) and a fourth transverse plate (7024) which are connected in sequence; the first longitudinal plate (7021) is vertically connected to one side of the main board (701); the first longitudinal plate (7021) and the third longitudinal plate (7023) are connected to two ends of the same side of the second transverse plate (7022); the second transverse plate (7022) and the fourth transverse plate (7024) are located at two ends of the same side of the third longitudinal plate (7023); the fourth transverse plate (7024) and the main board (701) are respectively located on two sides of the first longitudinal plate (7021); the fourth transverse plate (7024) is spaced apart and faces the first longitudinal plate (7021); The right hook portion (703) comprises a fifth longitudinal plate (7031) and a sixth transverse plate (7032); the fifth longitudinal plate (7031) is vertically connected to the other side of the main plate (701); The sixth transverse plate (7032) and the main plate (701) are connected to two ends of the same side of the fifth longitudinal plate (7031); The right hook portion (703) of one enclosure (7) can be adaptively axially slid into the left hook portion (702) of another enclosure (7), specifically, the sixth transverse plate (7032) slides between the second transverse plate (7022) and the fourth transverse plate (7024), the fifth longitudinal plate (7031) slides between the first longitudinal plate (7021) and the fourth transverse plate (7024), and the fourth transverse plate (7024) slides between the main plate (701) and the sixth transverse plate (7032).

3. The temporary vehicle ramp for foundation pit construction for basement construction according to claim 2 is characterized in that: The thickness of the sixth transverse plate (7032) is equal to the gap width between the second transverse plate (7022) and the fourth transverse plate (7024); the thickness of the fifth longitudinal plate (7031) is equal to the gap width between the first longitudinal plate (7021) and the fourth transverse plate (7024); the thickness of the fourth transverse plate (7024) is equal to the gap width between the main plate (701) and the sixth transverse plate (7032).

4. The temporary vehicle ramp for foundation pit construction for basement construction according to claim 2 or 3, characterized in that: The main boards (701) of the plurality of spliced ​​enclosures (7) on each side are aligned with each other, and the left hook (702) and the right hook (703) face inwards, so that the outer side surfaces of the plurality of spliced ​​enclosures (7) on each side are flat surfaces.

5. The temporary vehicle ramp for building a basement in a foundation pit according to claim 4, characterized in that: The enclosure (7) is square, and the tops of the multiple enclosures (7) spliced ​​on both sides of the vertical soil area (3) are arranged in a stepped manner from high to low; each of the main plates (701) passes through one or more of the tension rods (8).

6. The temporary vehicle ramp for building a basement in a foundation pit according to claim 5, characterized in that: The temporary vehicle ramp for the foundation pit used for constructing the basement further comprises a crown beam (11); the crown beam (11) is installed on the outer side of the plurality of enclosures (7) spliced ​​on each side; the straight rod section (802) at the top of each enclosure (7) passes through the crown beam (11); the locking member (10) abuts against the crown beam (11) to lock the crown beam (11) on the enclosure (7).

7. The temporary vehicle ramp for foundation pit construction for basement construction according to claim 1 is characterized in that: The wave segment (801) is in a horizontal plane.

8. The temporary vehicle ramp for foundation pit construction for basement construction according to claim 1 is characterized in that: The two sides of each convex arc of the wave segment (801) are connected by springs (16); each of the springs (16) is parallel to the straight rod segment (802); when not squeezed, the springs (16) are in a natural extension state or a stretched state with a deformation amount of ≤10%.

9. The temporary vehicle ramp for foundation pit for building a basement according to claim 1, 7 or 8, characterized in that: The vertical soil area (3) further comprises a plurality of net tubes (9), the net tubes (9) being straight-cylindrical in shape, the axial direction of the net tubes (9) being coaxial or parallel to the straight rod section (802); a net tube (9) being sheathed outside each of the wave sections (801); a plurality of fragments being filled between the net tubes (9) and the wave sections (801), the plurality of fragments completely enveloping the wave sections (801); gaps being provided between adjacent fragments; and a particle size of the fragments being larger than a diameter of the through hole (803).

10. The temporary vehicle ramp for foundation pit construction for basement construction according to claim 1, characterized in that: A water guide mechanism (6) is installed on each side of the trapezoidal soil area (2); the water guide mechanism (6) comprises a water guide pipe (601), a metal mesh cover (602) and a plurality of crushed stones; a section of the pipe wall of the water guide pipe (601) is provided with a plurality of penetrating water guide holes (6011), and the section is located in the trapezoidal soil area (2); another section of the pipe wall of the water guide pipe (601) is not provided with water guide holes (6011), and the section is located outside the trapezoidal soil area (2); the metal mesh cover (602) is sleeved on the section of the water guide pipe (601) located in the trapezoidal soil area (2); the crushed stones are filled in the metal mesh cover (602); and the particle size of the crushed stones is larger than the diameter of the water guide holes (6011).

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