Cast-in-place concrete trapezoidal open ditch gravity slipform system

Abstract

The invention relates to a cast-in-place concrete trapezoidal open ditch gravity slipform system, which belongs to the technical field of trapezoidal open ditch casting, and comprises a ditch body of the trapezoidal ditch, wherein channel steels are relatively arranged in the ditch body and on the side walls of the ditch body, the channel steels on both sides are parallel to each other and arranged at intervals, and the length direction of the channel steels is arranged perpendicular to the length direction of the ditch body, steel molds are arranged on the channel steels on both sides, and driving parts for driving the steel molds to move on the channel steels on both sides are arranged on the ground outside the ditch body, the steel molds are placed on the channel steels on both sides, and concrete is evenly spread between the channel steels on both sides and between the steel molds and the side walls of the ditch body, after the concrete is initially solidified, the steel molds are driven by the driving parts to move a distance on the channel steels on both sides, and the second concrete is cast, and the concrete is cast to the elevation position according to this process, and the operator does not need to build templates and other facilities. When it is necessary to cast the next section of concrete, it only needs to drive the channel steel and the steel molds to move to the specified position, thereby improving the casting efficiency of the trapezoidal ditch side walls by the operator.

Description

Technical Field

[0001] The invention relates to the technical field of trapezoidal open ditch casting, in particular to a cast-in-place concrete trapezoidal open ditch gravity slipform system. Background Art

[0002] As the name suggests, the cross-section of the trapezoidal open ditch is an inverted trapezoid that is wide at the top and narrow at the bottom. Depending on the depth of the ditch, the side walls are inclined with slope ratios of 1:1 and 1:1.5 respectively. One side is directly connected to the soil foundation, and the other side is open to the sky. Some existing rivers and drainage ditches usually adopt a trapezoidal setting. When in use, the side walls and bottom walls of the ditch need to be poured with concrete. The advantage is that the structure is stable and does not require frequent maintenance after construction.

[0003] A Chinese patent application with application publication number CN106836445A discloses a method for casting and forming a trapezoidal drainage ditch based on an adjustable groove forming mold, including a vertical mold support, a wooden mold and a rectangular cross-section hollow steel pipe. Two wooden molds are arranged close to the inner wall of the drainage ditch groove. The vertical mold support is an assembled inverted isosceles trapezoidal frame structure with the same slope ratio as the drainage ditch cross-section. The vertical mold support is composed of four angle steels, namely the top long side angle steel, the bottom short side angle steel and the two side oblique waist angle steels, which are connected by bolts. The wooden mold includes a baffle, a strip wooden board, a reinforcement plate and a circular hook. The wooden mold is a vertical mold used for pouring drainage ditch concrete, and the circular hook is pre-implanted in the longitudinal center position of the reinforcement plate. An adjustable bracket supporting the top long side angle steel is provided directly below the connection between the top long side angle steel of the formwork support and the rectangular cross-section hollow steel pipe. The adjustable bracket includes a bolt base, a support rod, a spiral rod and a top support. The support rod is hollow and contains a rotating thread. The bolt base can pass through the reserved anchor hole of the short side angle steel at the bottom of the formwork support and rotate into the support rod to anchor the adjustable bracket to the formwork support. The spiral rod can rotate into the support rod to connect with each other. The formwork support and the bottom plate of the gutter are anchored and connected by anchors.

[0004] The above-mentioned existing technical solutions have the following defects: before the overall construction begins, the operator still needs to assemble and set up the ditch body wooden formwork, the vertical formwork support and the adjustable support. When constructing the next section of the trapezoidal ditch, the operator needs to adjust the anchor position of the inclined waist angle steel bolts on both sides of the vertical formwork support, thereby changing the inclination of the inclined waist angle steel to adapt to the slope ratio. After the construction is completed, the entire mold needs to be dismantled, which reduces the construction efficiency of the operator. Summary of the invention

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide a cast-in-place concrete trapezoidal open ditch gravity slipform system which can improve the construction efficiency of operators.

[0006] The above-mentioned object of the present invention is achieved through the following technical solutions:

[0007] A cast-in-place concrete trapezoidal open ditch gravity slipform system comprises a ditch body of a trapezoidal ditch, wherein channel steels are relatively arranged inside the ditch body and on the side walls of the ditch body, the channel steels on both sides are parallel to each other and arranged at intervals, the length direction of the channel steels is arranged along a direction perpendicular to the length direction of the ditch body, steel molds are arranged on the surfaces of the channel steels on both sides away from the side walls of the ditch body, and a driving member for driving the steel molds on the channel steels on both sides to move in a direction away from the bottom wall of the ditch body is arranged on the ground outside the ditch body.

[0008] By adopting the above technical scheme, when it is necessary to cast the side wall of the ditch body, the channel steel is placed on the side wall of the ditch body, the steel mold is placed on the channel steels on both sides, and the concrete is evenly spread between the channel steels on both sides and between the steel mold and the side wall of the ditch body. The concrete is compacted by a vibrating rod. After the concrete is initially solidified, the steel mold is driven by the driving member to move a distance on the channel steels on both sides to cast the second concrete. According to this process, the concrete is cast to the elevation position. The operator does not need to build templates and other facilities. When it is necessary to cast the next section of concrete, it only needs to drive the channel steel and the steel mold to move to the specified position, which improves the operator's casting efficiency on the trapezoidal ditch side wall, thereby improving the operator's construction efficiency. In addition, the use of channel steel and steel mold to cast the trapezoidal ditch side wall uses very little material compared to building templates, thereby reducing construction costs.

[0009] In a preferred example, the present invention can be further configured as follows: the width of the steel mold along the length direction of the trench body is greater than the spacing between the channel steels on both sides, and the width of the steel mold along the height direction of the trench body side wall is less than the length of the channel steel.

[0010] By adopting the above technical scheme, the width of the steel mold along the length direction of the trench body is made larger than the spacing between the channel steels on both sides, thereby improving the abutment effect between the steel mold and the channel steels on both sides, thereby preventing the concrete from flowing out along the gap between the steel mold and the channel steels; the width of the steel mold along the height direction of the trench body side wall is made smaller than the length of the channel steel, so that the side wall of the trench body is cast in multiple layers, so that the concrete poured each time can be compacted by vibrating with a vibrating rod, thereby improving the pouring strength of the concrete after pouring.

[0011] In a preferred example, the present invention can be further configured as follows: a plurality of casting grooves are provided on the surface of the steel mold away from the side wall of the trench body.

[0012] By adopting the above technical solution, when it is necessary to increase the weight of the entire steel mold, concrete is poured into the casting groove on the steel mold, thereby increasing the weight of the steel mold, improving the abutment effect between the steel mold and the channel steel, and further preventing the concrete from flowing out along the gap between the steel mold and the channel steel; when it is necessary to transport the steel mold, the concrete in the casting groove is crushed and cleaned, thereby reducing the weight of the entire steel mold and facilitating the transportation of the steel mold.

[0013] In a preferred example, the present invention can be further configured as follows: the driving member includes a winch placed on the ground and located at the end of the channel steel on both sides, the winch includes a winding roller, a steel wire rope is wound around the winding roller, one end of the steel wire rope is fixedly connected to the winding roller, and the ends of the steel wire rope on both sides away from the winding roller are respectively connected to the two ends of the edge of the steel mold away from the bottom wall of the trench body.

[0014] By adopting the above technical scheme, winches are arranged at the ends of the channel steels on both sides, so that the winches on both sides can lift the two sides of the steel mold to prevent the steel mold from tilting when the winch drives the steel mold to move through the wire rope, thereby improving the movement effect of the steel mold on the channel steels on both sides. The winch is small in size, light in weight and has a large lifting force. When constructing the next section of the trench side wall, it is convenient to drive the winch to adjust the position.

[0015] In a preferred example, the present invention can be further configured as follows: lifting rings are provided on the steel mold and at the positions where the ends of the steel wire ropes on both sides are located, connecting rods are provided at the ends of the steel wire ropes, and the connecting rods are arranged in a "U" shape as a whole, and connecting rings are provided at both ends of the "U"-shaped connecting rod, and screws for passing through the lifting rings are passed through the connecting rings on both sides, and nuts are sleeved and threadedly connected at both ends of the screws, and the nuts on both sides are respectively used to abut against the surfaces opposite to the connecting rings on both sides.

[0016] By adopting the above technical solution, when the steel wire rope needs to be fixed to the steel mold, the screw is passed through the connecting rings on both sides and the screw is passed through the lifting ring, and the nuts are screwed into the two ends of the screw, so that the nuts on both sides are respectively abutted against the opposite surfaces of the connecting rings on both sides, so that the lifting ring is fixed to the connecting rod. The setting of the screw and the nut is convenient for fixing the steel wire rope, and improves the firmness of the steel wire rope fixed to the steel mold, preventing the steel wire rope from being separated from the steel mold when the winch drives the steel mold to move.

[0017] In a preferred example, the present invention can be further configured as follows: a connecting rope is provided at the end of the steel wire rope away from the winding roller, and the connecting rope is passed around a "U"-shaped connecting rod and fixed to the steel wire rope by a rope clamp.

[0018] By adopting the above technical solution, the setting of the rope clamp can make the connecting rod detachably connected to the wire rope, which is convenient for installation and replacement of the connecting rod and meets the actual installation application.

[0019] In a preferred example, the present invention can be further configured as follows: the driving member also includes a base placed on the ground and located at the positions where the ends of the channel steels on both sides are located, a portal frame is arranged on the base perpendicular to the base, a lifting pulley for guiding the wire rope is arranged in the portal frame, a concrete counterweight is placed on the base, and the winch is fixedly arranged on the base and located between the concrete counterweight and the portal frame.

[0020] By adopting the above technical scheme, the setting of the lifting pulley can guide the steel wire rope, preventing the steel wire rope from being damaged due to friction between the steel wire rope and the side wall of the trench body, and the setting of the portal frame and the lifting pulley can make the steel wire rope and the plane where the steel mold is located parallel, so that when the steel wire rope drives the steel mold to move on the channel steels on both sides, the steel mold and the channel steels on both sides always maintain a mutual abutment relationship, which indirectly improves the sliding effect of the steel mold on the channel steels on both sides; the setting of the concrete counterweight block can prevent the portal frame from tipping over due to the excessive weight of the steel mold, thereby improving the stability of the portal frame on the ground.

[0021] In a preferred example, the present invention can be further configured as follows: the lifting pulley includes a hook, the portal frame is provided with a hanging ring for the hook to be hung, and the lifting pulley is detachably connected to the portal frame through the hook and the hanging ring.

[0022] By adopting the above technical solution, the setting of the hook and the hanging ring facilitates the installation and fixation of the lifting pulley, improves the installation efficiency of the installers, and conforms to the actual installation application.

[0023] In a preferred example, the present invention can be further configured as follows: support rods are provided between the portal frame and the base and on both sides of the portal frame, one end of the support rod is connected to the portal frame, and the other end is connected to the base.

[0024] By adopting the above technical solution, the arrangement of the support rods can support the portal frame, thereby further improving the stability of the portal frame when in use.

[0025] In a preferred example, the present invention can be further configured as follows: the portal frame includes a first frame body that is arranged in an overall rectangular shape, reinforcement rods are arranged in the first frame body and on both sides of the first frame body, the hanging ring is located at the edge of the first frame body away from the base and between the reinforcement rods on both sides, the base includes a second frame body that is arranged in an overall rectangular shape, a plurality of fixing rods are arranged in the second frame body, and the plurality of fixing rods are parallel to each other and arranged at intervals.

[0026] By adopting the above technical solution, the portal frame includes a first frame body and a reinforcing rod, which reduces the weight of the entire portal frame; the base includes a second frame body and a fixing rod, which reduces the weight of the entire base, thereby facilitating the transportation of the base and the portal frame; the reinforcing rod can support and reinforce the portal frame to prevent the portal frame from falling apart during use.

[0027] In summary, the present invention includes at least one of the following beneficial technical effects:

[0028] Place the channel steel on the side wall of the trench body, place the steel mold on the channel steel on both sides, fix the end of the connecting rope to the wire rope through the rope clamp, so that the connecting rod is fixed to the connecting rope, then pass the screw rod through the connecting ring and the lifting ring, fix it to the screw rod through the nut and fix it to the lifting ring, evenly spread the concrete between the channel steel on both sides and between the steel mold and the side wall of the trench body, and use a vibrating rod to vibrate and compact the concrete. After the initial setting of the concrete, drive the winding roller to rotate through the winch, so that the steel wire rope drives the steel mold to move a distance on the channel steel on both sides, and then pour the second concrete. According to this process, pour it to the elevation position. The operator does not need to build templates and other facilities. When it is necessary to pour the next section of concrete, it only needs to drive the channel steel, steel mold, winch and other facilities to the designated position, which improves the operator's pouring efficiency on the trapezoidal trench side wall, thereby improving the operator's construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 yes Figure 1 A magnified view of part A in FIG.

[0031] Figure 3 It is a schematic diagram of the structure of the display base and the door frame of the present invention.

[0032] In the figure, 1, ditch body; 11, channel steel; 12, steel mold; 121, casting trough; 13, winch; 131, winding roller; 132, wire rope; 133, connecting rope; 14, lifting ring; 141, connecting rod; 142, connecting ring; 143, screw; 144, nut; 15, base; 151, portal frame; 152, lifting pulley; 153, concrete counterweight; 154, hook; 155, hanging ring; 156, support rod; 157, first frame; 158, reinforcement rod; 16, second frame; 161, fixing rod. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0034] Reference Figure 1 , is a cast-in-place concrete trapezoidal open ditch gravity slipform system disclosed in the present invention, comprising a ditch body 1 of a trapezoidal ditch, channel steels 11 are relatively arranged in the ditch body 1 and on the side walls of the ditch body 1, the channel steels 11 on both sides are parallel to each other and arranged at intervals, the length direction of the channel steels 11 is arranged perpendicular to the length direction of the ditch body 1, and steel molds 12 are arranged on the surfaces of the channel steels 11 on both sides away from the side walls of the ditch body 1.

[0035] like Figure 1As shown, in order to improve the abutment effect between the steel mold 12 and the channel steel 11, the width of the steel mold 12 along the length direction of the trench body 1 is greater than the spacing between the channel steels 11 on both sides; in order to facilitate the vibration and compaction of the concrete between the steel mold 12 and the side wall of the trench body 1, the width of the steel mold 12 along the height direction of the side wall of the trench body 1 is less than the length of the channel steel 11.

[0036] like Figure 1 As shown, in order to facilitate changing the weight of the entire steel mold 12, thereby improving the abutment effect between the steel mold 12 and the channel steel 11 and facilitating the transportation of the steel mold 12, a plurality of casting grooves 121 are opened on the surface of the steel mold 12 away from the side wall of the trench body 1; the weight of the steel mold 12 can be changed by pouring concrete into the casting grooves 121.

[0037] like Figure 1 As shown, in order to drive the steel mold 12 to move on the channel steels 11 on both sides, thereby pouring concrete in layers, a driving member is provided on the ground outside the trench body 1 for driving the steel mold 12 to move on the channel steels 11 on both sides toward a direction away from the bottom wall of the trench body 1.

[0038] Combination Figure 1 and Figure 3 The driving part includes a winch 13 placed on the ground and located at the ends of the channel steels 11 on both sides. The winch 13 includes a winding roller 131, and a steel wire rope 132 is wound around the winding roller 131. One end of the steel wire rope 132 is fixedly connected to the winding roller 131, and the ends of the steel wire ropes 132 on both sides away from the winding roller 131 are respectively connected to the two ends of the edge of the steel mold 12 away from the bottom wall of the trench body 1.

[0039] When it is necessary to pour concrete on the side wall of the ditch body 1, the channel steel 11 is placed on the side wall of the ditch body 1, and the steel mold 12 is placed on the channel steels 11 on both sides. The concrete is evenly spread between the channel steels 11 on both sides and between the steel mold 12 and the side wall of the ditch body 1, and the concrete is compacted by a vibrating rod. After the concrete is initially solidified, the winding roller 131 is driven to rotate by the winch 13, so that the wire rope 132 drives the steel mold 12 to move a distance on the channel steels 11 on both sides. At this time, the second concrete is poured. According to this process, the concrete is poured to the elevation position. The operator does not need to build templates and other facilities. When it is necessary to pour the next section of concrete, it only needs to drive the channel steel 11 and the steel mold 12 to move to the specified position, which improves the operator's pouring efficiency on the trapezoidal ditch side wall, thereby improving the operator's construction efficiency.

[0040] In other embodiments, an excavator may be used instead of the winch 13 , and a steel wire rope 132 may be provided on the bucket of the excavator to drive the steel mold 12 to move on the channel steels 11 on both sides.

[0041] Combination Figure 1 and Figure 3In order to prevent the steel wire rope 132 from being damaged due to friction between the groove body 1, the driving part also includes a base 15 placed on the ground and located at the ends of the channel steels 11 on both sides. A portal frame 151 is arranged on the base 15 perpendicular to the base 15. A lifting pulley 152 for guiding the steel wire rope 132 is arranged in the portal frame 151. A concrete counterweight block 153 is placed on the base 15. The winch 13 is fixedly arranged on the base 15 and located between the concrete counterweight block and the portal frame 151.

[0042] The steel wire rope 132 on the winding roller 131 is passed through the lifting pulley 152, so that the lifting pulley 152 guides the steel wire rope 132 to prevent the steel wire rope 132 from contacting the side wall of the groove body 1, and the lifting pulley 152 can drive the steel wire rope 132 to be parallel to the steel mold 12, thereby preventing the steel mold 12 from tilting when the steel wire rope 132 drives the steel mold 12 to move, so that the steel mold 12 and the channel steel 11 always maintain a mutual abutment relationship, thereby improving the driving effect of the steel mold 12.

[0043] In this embodiment, the lifting pulley 152 is a prior art, and its specific structure will not be described in detail.

[0044] Combination Figure 1 and Figure 3 In order to detachably connect the lifting pulley 152 to the portal frame 151, the lifting pulley 152 includes a hook 154, and the portal frame 151 is provided with a hanging ring 155 for hanging the hook 154. The lifting pulley 152 is detachably connected to the portal frame 151 through the hook 154 and the hanging ring 155.

[0045] like Figure 3 As shown, in order to improve the strength of the portal frame 151, support rods 156 are arranged between the portal frame 151 and the base 15 and on both sides of the portal frame 151, one end of the support rod 156 is connected to the portal frame 151, and the other end is connected to the base 15.

[0046] like Figure 3 As shown, in order to reduce the weight of the portal frame 151 and facilitate the transportation of the portal frame 151, the portal frame 151 includes a first frame body 157 which is arranged in an overall rectangular shape, and reinforcement rods 158 are arranged in the first frame body 157 and on both sides of the first frame body 157, and the hanging ring 155 is located at the edge of the first frame body 157 away from the base 15 and between the reinforcement rods 158 on both sides.

[0047] like Figure 3 As shown, in order to reduce the weight of the base 15 and facilitate transportation of the base 15, the base 15 includes a second frame body 16 that is generally rectangular, and a plurality of fixing rods 161 are arranged in the second frame body 16. The plurality of fixing rods 161 are parallel to each other and spaced apart.

[0048] Combination Figure 1 and Figure 2 In order to detachably connect the steel wire rope 132 to the steel mold 12, thereby facilitating the fixing and disassembly of the steel mold 12, a lifting ring 14 is provided on the steel mold 12 and at the positions where the ends of the steel wire ropes 132 on both sides are located, and a connecting rod 141 is provided at the end of the steel wire rope 132. The connecting rod 141 is arranged in a "U" shape as a whole, and connecting rings 142 are provided at both ends of the "U"-shaped connecting rod 141. Screws 143 for passing through the lifting ring 14 are inserted in the connecting rings 142 on both sides, and nuts 144 are sleeved and threadedly connected at both ends of the screw rod 143. The nuts 144 on both sides are respectively used to abut against the surfaces opposite to the connecting rings 142 on both sides.

[0049] When it is necessary to fix the steel wire rope 132 to the steel mold 12, the screw rod 143 is passed through the lifting ring 14 and the two connecting rings 142 on the connecting rod 141 at the same time, and the nuts 144 are screwed on the two ends of the screw rod 143 respectively, so that the screw rod 143 fixes the connecting rod 141 and the lifting ring 14 together, thereby fixing the steel mold 12 to the steel wire rope 132. The use of bolts facilitates the installation and fixation of the steel mold 12, thereby improving the fixing effect of the steel mold 12 to the steel wire rope 132.

[0050] Combination Figure 1 and Figure 2 In order to detachably connect the connecting rod 141 to the wire rope 132, a connecting rope 133 is provided at the end of the wire rope 132 away from the winding roller 131. The connecting rope 133 passes around the "U"-shaped connecting rod 141 and is fixed to the wire rope 132 by a rope clamp.

[0051] In this embodiment, the rope clamp is a prior art, and its specific structure will not be described in detail.

[0052] The implementation principle of this embodiment is as follows: when it is necessary to cast the side wall of the trench body 1, firstly, the channel steel 11 is placed on the side wall of the trench body 1, the steel mold 12 is placed on the channel steels 11 on both sides, the two bases 15 and the portal frame 151 are respectively placed on the ground and at the ends of the channel steels 11 on both sides, the concrete counterweights 153 are placed on the bases 15 on both sides, the steel wire rope 132 on the winding roller 131 of the winch 13 is driven to pass through the lifting pulley 152, and the connecting rod 141 is fixed by the rope clamp The steel mold 12 is fixed to the wire rope 132, and the connecting rod 141 and the lifting ring 14 are fixed by the screw 143 and the nut 144. At this time, the steel mold 12 is located near the bottom wall of the trench body 1, and the concrete is evenly spread between the channel steels 11 on both sides and between the steel mold 12 and the side wall of the trench body 1. The concrete is vibrated and compacted by a vibrating rod. After the concrete is initially set, the winding roller 131 is driven to rotate by the winch 13, so that the steel wire rope 132 drives the steel mold 12 to move a distance on the channel steels 11 on both sides. The concrete is then poured evenly between the two side channel steels 11 and between the steel mold 12 and the side wall of the trench body 1. The above steps are repeated to pour the concrete to the elevation position to complete the pouring of a section of the side wall of the trench body 1. When the next section of concrete needs to be poured, only one channel steel 11 is needed. The channel steel 11 is placed on the side of the concrete poured in the previous section. The two ends of the steel mold 12 are respectively placed on the poured concrete and the channel steel 11. The above pouring steps are repeated to complete the pouring of the side wall of the trench body 1. In the actual pouring process, four groups of gravity sliding formwork systems can be used to carry out construction simultaneously along the two ends of the two side walls of the trench body 1. The operator does not need to build a template. When the next section of concrete needs to be poured, it is only necessary to drive the base 15, the portal frame 151, the channel steel 11 and the steel mold 12 to move. This improves the operator's pouring efficiency for the side wall of the trench body 1, thereby improving the construction efficiency, and uses very few equipment, saving costs.

[0053] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cast-in-place concrete trapezoidal open ditch gravity slipform system, comprising a trapezoidal ditch body (1), characterized in that: Channel steels (11) are arranged opposite to each other in the groove body (1) and on the side walls of the groove body (1). The channel steels (11) on both sides are parallel to each other and arranged at intervals. The length direction of the channel steels (11) is arranged perpendicular to the length direction of the groove body (1). Steel molds (12) are arranged on the surfaces of the channel steels (11) on both sides away from the side walls of the groove body (1). A driving member for driving the steel molds (12) to move on the channel steels (11) on both sides in a direction away from the bottom wall of the groove body (1) is arranged on the ground outside the groove body (1). The steel molds (12) are arranged away from the groove body. (1) A plurality of casting grooves (121) are provided on the surface of the side wall, the driving member comprises a winch (13) placed on the ground and located at the ends of the channel steels (11) on both sides, the winch (13) comprises a winding roller (131), a steel wire rope (132) is wound around the winding roller (131), one end of the steel wire rope (132) is fixedly connected to the winding roller (131), and the ends of the steel wire rope (132) on both sides away from the winding roller (131) are respectively connected to the two ends of the edge of the steel mold (12) away from the bottom wall of the trench body (1).

2. The cast-in-place concrete trapezoidal open ditch gravity slipform system according to claim 1, characterized in that: The width of the steel mold (12) along the length direction of the groove body (1) is greater than the spacing between the channel steels (11) on both sides, and the width of the steel mold (12) along the height direction of the side wall of the groove body (1) is less than the length of the channel steel (11).

3. The cast-in-place concrete trapezoidal open ditch gravity slipform system according to claim 1, characterized in that: A lifting ring (14) is provided on the steel mold (12) at the positions where the ends of the steel wire ropes (132) on both sides are located. A connecting rod (141) is provided at the ends of the steel wire ropes (132). The connecting rod (141) is arranged in a "U" shape as a whole. Both ends of the "U"-shaped connecting rod (141) are provided with connecting rings (142). Screws (143) for passing through the lifting rings (14) are inserted into the connecting rings (142) on both sides. Nuts (144) are sleeved and threadedly connected at both ends of the screw rods (143). The nuts (144) on both sides are respectively used to abut against the surfaces of the connecting rings (142) on both sides that are away from each other.

4. The cast-in-place concrete trapezoidal open ditch gravity slipform system according to claim 3, characterized in that: A connecting rope (133) is provided at the end of the steel wire rope (132) away from the winding roller (131), and the connecting rope (133) is passed around a "U"-shaped connecting rod (141) and is fixed to the steel wire rope (132) through a rope clamp.

5. The cast-in-place concrete trapezoidal open ditch gravity slipform system according to claim 4, characterized in that: The driving member also includes a base (15) placed on the ground and located at the positions where the ends of the channel steels (11) on both sides are located, a portal frame (151) is arranged on the base (15) perpendicular to the base (15), a lifting pulley (152) for guiding the steel wire rope (132) is arranged inside the portal frame (151), a concrete counterweight (153) is placed on the base (15), and the winch (13) is fixedly arranged on the base (15) and located between the concrete counterweight and the portal frame (151).

6. The cast-in-place concrete trapezoidal open ditch gravity slipform system according to claim 5, characterized in that: The lifting pulley (152) comprises a hook (154), and the portal frame (151) is provided with a hanging ring (155) for hanging the hook (154), and the lifting pulley (152) is detachably connected to the portal frame (151) via the hook (154) and the hanging ring (155).

7. The cast-in-place concrete trapezoidal open ditch gravity slipform system according to claim 6, characterized in that: Support rods (156) are provided between the portal frame (151) and the base (15) and on both sides of the portal frame (151); one end of the support rod (156) is connected to the portal frame (151), and the other end is connected to the base (15).

8. The cast-in-place concrete trapezoidal open ditch gravity slipform system according to claim 7, characterized in that: The door-type frame (151) comprises a first frame body (157) which is arranged in a rectangular shape as a whole; reinforcement rods (158) are arranged in the first frame body (157) and on both sides of the first frame body (157); the hanging ring (155) is located at an edge of the first frame body (157) away from the base (15) and between the reinforcement rods (158) on both sides; the base (15) comprises a second frame body (16) which is arranged in a rectangular shape as a whole; a plurality of fixing rods (161) are arranged in the second frame body (16); the plurality of fixing rods (161) are arranged parallel to each other and spaced apart.

Images