Drainage desilting facility for linear engineering

Abstract

The invention relates to the technical field of water and soil conservation, and discloses a drainage and desilting facility for linear engineering. The drainage and desilting facility comprises a plurality of drainage sections which are arranged in sequence, and any two adjacent drainage sections are standard drainage sections or expanded drainage sections, or one of the drainage sections is a standard drainage section, and the other drainage section is an expanded drainage section. The drainage and desilting facility is higher in structural stability, unsmooth drainage caused by silt, side slope instability and the like is not prone to occurring, the desilting efficiency is high, and a large amount of silt cannot be discharged into a river channel or a municipal pipe network during drainage. And the drainage and desilting facility is provided with a plurality of drainage sections, so that the drainage and desilting facility can be used for trench foundation pits or roadbeds with different construction lengths, and is wide in application range.

Description

Technical Field

[0001] The invention relates to the technical field of soil and water conservation, and in particular to a drainage and sedimentation facility for linear engineering. Background Art

[0002] Linear projects refer to production and construction projects with linear distribution and large mileage, mainly including highways, railways, power transmission and transformation lines, gas (oil) pipeline projects, etc. These projects are closely related to the national economic development and the production and life of the people. With the advancement of strategies such as building a strong transportation country, the scale of investment in linear project construction will continue to remain high, and linear production and construction activities will continue to be carried out on a large scale. Compared with production and construction projects with centralized layout, small span and point distribution such as water conservancy and hydropower projects and mining projects, linear projects have the characteristics of large line span, large construction disturbance area and wide disturbance range. The soil erosion caused by the construction process is more harmful, and there are still great challenges in the prevention and control of soil erosion.

[0003] During the construction period of linear engineering, trench foundation pits or roadbeds need to be excavated. The surface runoff generated by rainwater flows down and infiltrates into the trench foundation pits or roadbeds, causing soil erosion along the slopes and roadbeds, which in turn affects the stability of the trench foundation pits or roadbeds. Therefore, soil drainage and sedimentation facilities will be set up during the construction period of linear engineering. The soil drainage and sedimentation facilities can guide the runoff direction in time and also reduce the sedimentation of runoff sediment. The existing soil drainage and sedimentation facilities are generally soil drainage ditches, but soil drainage ditches often have poor drainage and low sedimentation efficiency due to silt, slope instability and other reasons, resulting in a large amount of sediment discharged into the river or into the municipal pipe network. Summary of the invention

[0004] In view of this, the present invention provides a drainage and sedimentation facility for linear engineering to solve the problem that earth drainage and sedimentation facilities may have poor drainage due to silt, slope instability and the like, low sedimentation efficiency and a large amount of sediment discharged into the river or into the municipal pipeline network.

[0005] In a first aspect, the present invention provides a drainage and sedimentation facility for linear engineering, comprising:

[0006] A plurality of drainage sections are arranged in sequence, and any two adjacent drainage sections are both standard drainage sections or both are enlarged drainage sections or one of them is the standard drainage section and the other is the enlarged drainage section.

[0007] Beneficial Effects

[0008] Compared with earthen drainage ditches, this type of drainage and sedimentation facility has a stronger structural stability, is not prone to drainage obstruction due to silt, slope instability, etc., has a high sedimentation efficiency, and will not allow a large amount of silt to be discharged into the river or into the municipal pipe network during drainage. In addition, the drainage and sedimentation facility is set up with multiple drainage sections, which can meet the use of trench foundation pits or roadbeds of different construction lengths, and has a wide range of applications.

[0009] In an optional embodiment, the standard drainage sections and the enlarged drainage sections are arranged alternately.

[0010] Beneficial Effects

[0011] The rainwater runoff is collected in the standard drainage section and then enters the expanded drainage section. The expanded drainage section has a large flow cross-section, which can reduce the flow rate of the rainwater runoff and settle the sediment. Therefore, this layout can improve the sedimentation efficiency.

[0012] In an optional embodiment, the standard drainage section includes: a first arc-shaped groove and two straight plates, the two straight plates are respectively arranged on two first end surfaces of the top of the first arc-shaped groove, the straight plates are perpendicular to the first end surfaces, and the two straight plates are parallel to each other.

[0013] In an optional embodiment, the expanded drainage section includes: a second arc-shaped groove and two inclined plates, the two inclined plates are respectively arranged on the two second end surfaces of the top of the second arc-shaped groove, the inclined plates are arranged at an angle to the second end surfaces, and the end of the inclined plate away from the second arc-shaped groove is inclined toward the outer side of the second arc-shaped groove.

[0014] In an optional embodiment, the first arc-shaped groove and the straight plate are connected via a first plug-in mechanism, and the second arc-shaped groove and the inclined plate are connected via a second plug-in mechanism.

[0015] In an optional embodiment, the first plug-in mechanism comprises: a plurality of first hollow connecting tubes and a first plug rod, some of the first hollow connecting tubes are arranged in the first arc-shaped groove, and the rest are arranged in the straight plate, and the first plug rod is inserted into the first arc-shaped groove and the first hollow connecting tube on the straight plate;

[0016] The second plug-in mechanism includes: a plurality of second hollow connecting tubes and a second plug rod, some of the second hollow connecting tubes are arranged in the second arc groove, and the rest are arranged in the inclined plate, and the second plug rod is inserted into the second arc groove and the second hollow connecting tube on the inclined plate.

[0017] Beneficial Effects

[0018] The plug-in mechanism can realize the quick connection between the first arc-shaped groove and the two straight plates and the second arc-shaped groove and the two inclined plates, has a simple structure and is convenient for on-site construction.

[0019] In an optional embodiment, the adjacent standard drainage sections and the expanded drainage sections are connected by a connecting member, and the connecting member includes: a triangular plate, a first connecting plate and a second connecting plate, the triangular plate is a right-angled triangle, the first connecting plate is arranged on a right-angled side of the triangular plate and is located on the side of the triangular plate facing the standard drainage section, the first connecting plate is connected to the straight plate, the second connecting plate is arranged on the hypotenuse of the triangular plate and is located on the side of the triangular plate facing the expanded drainage section, and the second connecting plate is connected to the oblique plate.

[0020] Beneficial Effects

[0021] The connecting piece can realize quick connection between the standard drainage section and the enlarged drainage section, and can also improve the connection strength between the standard drainage section and the enlarged drainage section.

[0022] In an optional embodiment, the triangle plate is configured such that the length of one right-angled side of the first connecting plate is 1.15 times or 1.2 times the length of the other right-angled side.

[0023] In an optional embodiment, a filter screen is provided at the bottom of the standard drainage section and / or the enlarged drainage section.

[0024] Beneficial Effects

[0025] The filter screen is provided to facilitate the subsequent cleaning of the sediment in the standard drainage section and / or the expanded drainage section.

[0026] In an optional embodiment, an interception net is provided at the connection between two adjacent drainage sections.

[0027] Beneficial Effects

[0028] Setting up an interception net can intercept and filter some impurities carried by rainwater runoff, preventing impurities from entering rivers or municipal pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a schematic diagram of the drainage and sedimentation facility of the present invention;

[0031] Figure 2 It is a schematic diagram of a standard drainage section in the drainage and sedimentation facility of the present invention;

[0032] Figure 3 It is a schematic diagram of an enlarged drainage section in the drainage and sedimentation facility of the present invention;

[0033] Figure 4 It is a connection schematic diagram of a standard drainage section in the drainage and sedimentation facility of the present invention;

[0034] Figure 5 It is a schematic diagram of the first plug-in mechanism in the drainage and sedimentation facility of the present invention;

[0035] Figure 6 It is a schematic diagram of the second plug-in mechanism in the drainage and sedimentation facility of the present invention;

[0036] Figure 7 It is a schematic diagram of the connecting parts in the drainage and sedimentation facility of the present invention.

[0037] Description of reference numerals:

[0038] 1. Standard drainage section, 11. First arc groove, 12. Straight plate;

[0039] 2. Expanded drainage section, 21. Second arc-shaped groove, 22. Inclined plate;

[0040] 31. a first hollow connecting tube, 32. a first plug rod;

[0041] 41. A second hollow connecting pipe;

[0042] 5. Connecting piece, 51. Triangular plate, 52. First connecting plate, 53. Second connecting plate. DETAILED DESCRIPTION

[0043] The technical solution of the present invention 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 invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0047] In the related technology, earthen drainage ditches are used as drainage and sedimentation facilities during the construction period of linear engineering projects to guide rainwater runoff from trench foundation pits or roadbeds to gather in earthen drainage ditches, and sediment is settled in the earthen drainage ditches, and finally the runoff is discharged to water bodies such as rivers or municipal drainage networks. Although digging earthen drainage ditches is the easiest way to drain water, when the earthen drainage ditches are draining, the water flow is easy to combine with the soil of the drainage ditch to form silt, and the rainwater erodes the wall of the earthen drainage ditch, which is easy to cause the collapse of the slope soil. These will hinder the smoothness of drainage inside the drainage ditch, and the runoff will still carry a large amount of sand in the water flowing out of the drainage ditch, which will cause water pollution when entering water bodies such as rivers, and may cause pipe blockage when entering the municipal drainage network.

[0048] The present invention aims at the problems existing in the drainage and sedimentation process of soil drainage ditches and provides a drainage and sedimentation facility for linear engineering. Figures 1 to 7 , describing an embodiment of the present invention.

[0049] A drainage and sedimentation facility for linear engineering includes a plurality of drainage sections arranged in sequence, and any two adjacent drainage sections are standard drainage sections 1 or both are enlarged drainage sections 2 or one of them is a standard drainage section 1 and the other is an enlarged drainage section 2.

[0050] The drainage and sedimentation facilities are composed of multiple drainage sections, and the specific number needs to be determined according to the length of the linear project. First, dig a trench in the designated area, and then place multiple drainage sections in the trench in sequence. The drainage section is a prefabricated part. After being prefabricated in the factory, it can be directly transported to the construction site for laying. There are two types of drainage sections, one is the standard drainage section 1, and the other is the expanded drainage section 2. The flow area of ​​the expanded drainage section 2 is larger than the standard drainage section 1. The setting form of the drainage section needs to be comprehensively judged based on the amount of rainfall and the catchment area. Standard drainage section 1 can be set, expanded drainage section 2 can be set, or standard drainage section 1 and expanded drainage section 2 can be used in combination in any form.

[0051] The drainage section is prefabricated, which is convenient for on-site construction and has a relatively fast installation speed. The runoff will not come into contact with the soil when flowing in the drainage section. In addition, the drainage section has better stability and the soil on both sides is not easy to collapse, so no silt will form in the drainage section, the drainage will be smoother, and the sedimentation effect will be better, which will not pollute the water body or block the municipal drainage pipeline.

[0052] In one embodiment, Figure 1 As shown, the standard drainage section 1 and the enlarged drainage section 2 are arranged alternately.

[0053] The drainage and sedimentation facility can be used in a combination of a standard drainage section 1 and an enlarged drainage section 2. This arrangement also has a variety of combinations. This embodiment uses the following combination: Figure 1 The standard drainage section 1 and the expanded drainage section 2 are arranged alternately. The rainwater runoff is collected in the standard drainage section 1 and then enters the expanded drainage section 2. The flow cross section of the expanded drainage section 2 is larger than that of the standard drainage section 1. Therefore, the rainwater runoff will be decomposed when entering the expanded drainage section 2, and the flow rate will decrease, which is conducive to sediment sedimentation. Therefore, this arrangement can improve the sedimentation efficiency of rainwater runoff.

[0054] In other embodiments, other combinations of standard drainage segments 1 and enlarged drainage segments 2 may also be used, such as one standard drainage segment 1, two enlarged drainage segments 2, one standard drainage segment 1, two enlarged drainage segments 2, etc., which are alternately arranged.

[0055] In one embodiment, Figure 2 As shown, the standard drainage section 1 includes: a first arc-shaped groove 11 and two straight plates 12, the two straight plates 12 are respectively arranged on the two first end surfaces of the groove top of the first arc-shaped groove 11, the straight plates 12 are perpendicular to the first end surfaces, and the two straight plates 12 are parallel to each other.

[0056] The cross section of the first arc groove 11 is in the shape of an arc, and the arc can be a minor arc or a semicircle. In this embodiment, a semicircle is selected. The groove top of the first arc groove 11 has two first end faces, and the bottom surfaces of the two straight plates 12 are respectively connected to the two first end faces. Since the cross section of the first arc groove 11 in this embodiment is a semicircle, the straight plate 12 is tangent to the first arc groove 11. Specifically, the diameter of the first arc groove 11 is [0.3, 0.4] m, the length is [100, 200] m, and the height of the straight plate 12 is [0.2, 0.4] m, which is equal to the length of the first arc groove 11.

[0057] In one embodiment, the first arc groove 11 and the straight plate 12 are connected via a first plug-in mechanism.

[0058] The first arc groove 11 and the straight plate 12 can be connected in a non-detachable manner, such as welding, or in a detachable manner, such as through a first plug-in mechanism. With the detachable connection, first arc grooves 11 and straight plates 12 with different size parameters can be used in combination.

[0059] In one embodiment, Figure 4 , Figure 5 As shown, the first plug-in mechanism includes: a plurality of first hollow connecting tubes 31 and a first plug rod 32, some of the first hollow connecting tubes 31 are arranged in the first arc groove 11, and the rest are arranged in the straight plate 12, and the first plug rod 32 is inserted into the first hollow connecting tubes 31 on the first arc groove 11 and the straight plate 12.

[0060] Each standard drainage section 1 can be provided with multiple groups of first plug-in mechanisms to achieve a stable connection between the first arc-shaped groove 11 and the straight plate 12. In this embodiment, six groups of first plug-in mechanisms are provided on each standard drainage section 1, with three groups provided on each side, respectively located at the two ends and the middle. The first hollow connecting tube 31 in the first plug-in mechanism is a hollow tube, and the first plug rod 32 can be inserted into the tube for limiting. In this embodiment, two first hollow connecting tubes 31 are arranged at intervals at the top end of the first arc-shaped groove 11, and one first hollow connecting tube 31 is arranged at the bottom end of the straight plate 12. During installation, the first hollow connecting tube 31 on the straight plate 12 is located exactly between the two first hollow connecting tubes 31 of the first arc-shaped groove 11 and the three first hollow connecting tubes 31 are coaxial, and then the first plug rod 32 can be inserted into the three first hollow connecting tubes 31 in sequence to achieve the connection between the first arc-shaped groove 11 and the straight plate 12.

[0061] In other embodiments, the number of first hollow connecting tubes 31 in each group of first plug-in mechanisms can be adjusted. For example, two first hollow connecting tubes 31 are spaced apart at the top end of the first arc-shaped groove 11, and two first hollow connecting tubes 31 are spaced apart at the bottom end of the straight plate 12, as long as the insertion rod can be inserted into these first hollow connecting tubes 31.

[0062] In another embodiment, the first plug-in mechanism includes: an insert block, a slot and an insert rod. One of the first arc groove 11 and the straight plate 12 is provided with an insert block, and the other is provided with a slot. After the insert block is plugged and connected with the slot, the insert rod is inserted into the insert block and the slot to complete the fixation.

[0063] In one embodiment, Figure 3 As shown, the expanded drainage section 2 includes: a second arc-shaped groove 21 and two inclined plates 22. The two inclined plates 22 are respectively arranged on the two second end surfaces of the groove top of the second arc-shaped groove 21. The inclined plates 22 are arranged at an angle to the second end surfaces, and the end of the inclined plate 22 away from the second arc-shaped groove 21 is inclined toward the outer side of the second arc-shaped groove 21.

[0064] The second arc groove 21 has the same structure as the first arc groove 11, and the cross section is also arc-shaped. The arc can be a minor arc or a semicircle. In this embodiment, a semicircle is selected. The groove top of the second arc groove 21 has two second end faces. The size of the inclined plate 22 is the same as that of the straight plate 12. The bottom surfaces of the two inclined plates 22 are respectively connected to the two second end faces, but the top ends of the two inclined plates 22 expand toward the outside of the second arc groove 21. The two inclined plates 22 are arranged in an approximately inverted figure eight shape. The flow area of ​​the expanded drainage section 2 is larger than that of the standard drainage section 1. When the water flows from the standard drainage section 1 into the expanded drainage section 2, the flow velocity will decrease due to the increase in the flow area, which is conducive to sedimentation.

[0065] In one embodiment, Figure 6 As shown, the second arc groove 21 and the inclined plate 22 are connected by a second plug-in mechanism. The second arc groove 21 and the inclined plate 22 can also be connected in a non-detachable manner, such as welding, or in a detachable manner, such as by a second plug-in mechanism.

[0066] In one embodiment, the second plug-in mechanism includes: multiple second hollow connecting tubes 41 and a second plug rod, some of the second hollow connecting tubes 41 are arranged in the second arc groove 21, and the rest are arranged on the inclined plate 22, and the second plug rod is inserted into the second hollow connecting tubes 41 on the second arc groove 21 and the inclined plate 22.

[0067] The second plug-in mechanism has the same structure as the first plug-in mechanism, and in this embodiment, six groups of second plug-in mechanisms are also arranged on each enlarged drainage section 2, with three groups arranged on each side, respectively located at the two ends and the middle. The second hollow connecting tube 41 in the second plug-in mechanism is a hollow tube, two second hollow connecting tubes 41 are arranged at intervals at the top of the second arc groove 21, and a second hollow connecting tube 41 is arranged at the bottom end of the inclined plate 22, and the second plug rod can be inserted into the tube for limiting. During installation, the second hollow connecting tube 41 on the inclined plate 22 is exactly located between the two second hollow connecting tubes 41 of the second arc groove 21 and the three second hollow connecting tubes 41 are coaxial, and then the second plug rod can be inserted into the three second hollow connecting tubes 41 in sequence to achieve the connection between the second arc groove 21 and the inclined plate 22.

[0068] In other embodiments, the number of the second hollow connecting tubes 41 provided on the second arc-shaped groove 21 and the inclined plate 22 can also be adaptively adjusted.

[0069] In other embodiments, the second plug-in mechanism may also be other types of plug-in connection mechanisms such as an insert block and a slot.

[0070] In one embodiment, Figure 7As shown, the adjacent standard drainage section 1 and the expanded drainage section 2 are connected by a connecting member 5, and the connecting member 5 includes: a triangular plate 51, a first connecting plate 52 and a second connecting plate 53. The triangular plate 51 is a right-angled triangle. The first connecting plate 52 is arranged on a right-angled side of the triangular plate 51 and is located on the side of the triangular plate 51 facing the standard drainage section 1. The first connecting plate 52 is connected to the straight plate 12. The second connecting plate 53 is arranged on the hypotenuse of the triangular plate 51 and is located on the side of the triangular plate 51 facing the expanded drainage section 2. The second connecting plate 53 is connected to the inclined plate 22.

[0071] Due to the difference in structure between the standard drainage section 1 and the enlarged drainage section 2, after the two are connected, there will be a gap between the straight plate 12 in the standard drainage section 1 and the inclined plate 22 in the enlarged drainage section 2. When projected from one end of the standard drainage section 1 or the enlarged drainage section 2, the shape of this gap is a triangle. A connector 5 is provided at the gap, and the main part of the connector 5, the triangular plate 51, is a right triangle, corresponding to the shape of the gap. The right triangle has two right-angled sides and one hypotenuse. One of the two right-angled sides is longer and is the long side, and the other is shorter and is the short side. A first connecting plate 52 is provided corresponding to the long side, and the first connecting plate 52 abuts against the straight plate 12 in the standard drainage section 1. A second connecting plate 53 is provided corresponding to the hypotenuse, and the second connecting plate 53 abuts against the inclined plate 22 in the enlarged drainage section 2. During installation, the connecting plate can be inserted along the straight plate 12 and the inclined plate 22.

[0072] The connection piece 5 can not only block the gap between the straight plate 12 in the standard drainage section 1 and the inclined plate 22 in the enlarged drainage section 2 to prevent water leakage, but also improve the structural strength of the standard drainage section 1 and the enlarged drainage section 2. The two are connected together for better stability.

[0073] In one embodiment, the length of one right-angle side of the first connecting plate 52 of the triangular plate 51 is 1.15 times or 1.2 times the length of the other right-angle side, that is, the length of the longer side of the two right-angle sides is 1.15 times or 1.2 times the length of the shorter side.

[0074] In one embodiment, a filter screen is disposed at the bottom of the standard drainage section 1 and / or the enlarged drainage section 2 .

[0075] The filter screen is set to facilitate the cleaning of the sediment in the drainage section. When the drainage and sedimentation facilities have finished draining, the filter screen can be directly taken out of the drainage section to pour out the sediment. The filter screen can be set in each drainage section, or it can be set every one or several drainage sections. The filter screen can be hung on the straight plate 12 or the inclined plate 22, which is convenient for the subsequent lifting of the filter screen and cleaning of the sediment.

[0076] In one embodiment, an interception net is provided at the connection between two adjacent drainage sections.

[0077] Rainwater runoff may carry some impurities into the drainage and sedimentation facilities, so an interception net can be set up to intercept the impurities. The interception net can be a separate net body or can be integrated with the filter.

[0078] In another embodiment, the filter screen and interception net may not be provided, and the interior of the drainage section may be cleaned manually, so that the structure of the drainage and sedimentation facility is simpler and the construction is faster.

[0079] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A drainage and sedimentation facility for linear engineering, characterized in that: include: A plurality of drainage sections are arranged in sequence, and any two adjacent drainage sections are both standard drainage sections (1) or both are enlarged drainage sections (2) or one of them is the standard drainage section (1) and the other is the enlarged drainage section (2).

2. The drainage and sedimentation facility for linear engineering according to claim 1, characterized in that: The standard drainage sections (1) and the enlarged drainage sections (2) are arranged alternately.

3. The drainage and sedimentation facility for linear engineering according to claim 2 is characterized in that: The standard drainage section (1) comprises: a first arc-shaped groove (11) and two straight plates (12), wherein the two straight plates (12) are respectively arranged on two first end surfaces of the groove top of the first arc-shaped groove (11), the straight plates (12) are perpendicular to the first end surfaces, and the two straight plates (12) are parallel to each other.

4. The drainage and sedimentation facility for linear engineering according to claim 3 is characterized in that: The enlarged drainage section (2) comprises: a second arc-shaped groove (21) and two inclined plates (22), wherein the two inclined plates (22) are respectively arranged on two second end surfaces of the groove top of the second arc-shaped groove (21), the inclined plates (22) are arranged at an angle with the second end surfaces, and one end of the inclined plate (22) away from the second arc-shaped groove (21) is inclined toward the outside of the second arc-shaped groove (21).

5. The drainage and sedimentation facility for linear engineering according to claim 4, characterized in that: The first arc-shaped groove (11) and the straight plate (12) are connected via a first plug-in mechanism, and the second arc-shaped groove (21) and the inclined plate (22) are connected via a second plug-in mechanism.

6. The drainage and sedimentation facility for linear engineering according to claim 5, characterized in that: The first plug-in mechanism comprises: a plurality of first hollow connecting tubes (31) and a first plug rod (32); part of the first hollow connecting tubes (31) are arranged in the first arc-shaped groove (11), and the rest are arranged in the straight plate (12); the first plug rod (32) is inserted into the first arc-shaped groove (11) and the first hollow connecting tubes (31) on the straight plate (12); The second plug-in mechanism comprises: a plurality of second hollow connecting tubes (41) and a second plug rod, wherein some of the second hollow connecting tubes (41) are arranged in the second arc-shaped groove (21), and the rest are arranged in the inclined plate (22), and the second plug rod is inserted into the second hollow connecting tubes (41) on the second arc-shaped groove (21) and the inclined plate (22).

7. The drainage and sedimentation facility for linear engineering according to claim 4, characterized in that: The adjacent standard drainage section (1) and the enlarged drainage section (2) are connected via a connecting member (5), wherein the connecting member (5) comprises: a triangular plate (51), a first connecting plate (52) and a second connecting plate (53), wherein the triangular plate (51) is a right-angled triangle, wherein the first connecting plate (52) is arranged on a right-angled side of the triangular plate (51) and is located on a side of the triangular plate (51) facing the standard drainage section (1), wherein the first connecting plate (52) is connected to the straight plate (12), wherein the second connecting plate (53) is arranged on the hypotenuse of the triangular plate (51) and is located on a side of the triangular plate (51) facing the enlarged drainage section (2), wherein the second connecting plate (53) is connected to the inclined plate (22).

8. The drainage and sedimentation facility for linear engineering according to claim 7, characterized in that: The length of one right-angled side of the triangular plate (51) for setting the first connecting plate (52) is 1.15 times or 1.2 times the length of the other right-angled side.

9. The drainage and sedimentation facility for linear engineering according to claim 1, characterized in that: A filter is provided at the bottom of the standard drainage section (1) and / or the enlarged drainage section (2).

10. The drainage and sedimentation facility for linear engineering according to any one of claims 1 to 9, characterized in that: An interception net is arranged at the connection of two adjacent drainage sections.

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