Construction platform for tower footing area in brine marsh

Abstract

The utility model relates to the technical field of power transmission line tower footing platforms, in particular to a brine marsh inner tower footing area construction platform which comprises an environmental soil base layer, a salt rock base layer, a drainage ditch, a bamboo springboard and a drainage well. The environment soil base layer is an original soil layer in brine marsh, a salt rock base layer of a trapezoidal structure is built above the environment soil base layer, drainage ditches of inverted trapezoidal structures are excavated in the positions, on the two sides of the salt rock base layer, of the environment soil base layer, a functional area and a shortcut area are arranged on the surface of the salt rock base layer, and bamboo springboards are laid on the shortcut area. A plurality of cylindrical drainage wells are vertically excavated in the salt rock base layer on the functional area, and the drainage wells are lower than the drainage ditches. The platform is built by surrounding brine marsh original soil, the structure is simple, building is convenient and fast, and the problems that an existing platform is high in manufacturing cost, and environment damage and water and soil loss are prone to being caused are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to power transmission line tower base platform technical field, concretely is a halogen water swamp inner tower base area construction platform. BACKGROUND

[0002] In recent years, through the optimization design, the progress of construction technology, the development of new construction machinery, the improvement of mature equipment performance and other innovative work, the whole process mechanization construction rate of power transmission engineering is steadily improved, but in the swamp area, mechanized construction still faces severe challenges. The whole process mechanization construction of power transmission line mainly includes seven processes, in turn, material transportation, temporary road, foundation excavation, concrete pouring, tower erection, stringing and grounding. Among them, the foundation excavation, concrete pouring and tower erection three processes, all need to build construction platform in the tower base range and the periphery to carry out.

[0003] As a kind of swamp, halogen water swamp has the characteristics of low bearing capacity, high underground water level of conventional swamp, high salt content, not easy to freeze, single vegetation and alkali resistance etc. The conventional method for building construction platform in halogen water swamp in the past has gravel paving platform, gravel paving plus steel plate platform, floating platform, steel pipe scaffold platform etc., and the conventional platform has two major problems of high cost, easy to cause environmental damage and soil erosion, as follows:

[0004] 1. High cost. If gravel paving platform is used, gravel needs to be purchased externally, and after construction is completed, gravel needs to be cleaned, and soil needs to be purchased externally for topsoil recovery, with a cost of about 285 yuan per square meter. If gravel paving plus steel plate platform is used, compared with gravel paving platform, steel plate needs to be laid on gravel, with a cost of about 406 yuan per square meter. According to the investigation, the cost of floating platform and steel pipe scaffold platform per square meter is as high as thousands of yuan.

[0005] 2. Easy to cause environmental damage and soil erosion. If gravel paving platform and gravel paving plus steel plate platform are used, gravel needs to be purchased externally, and in the process of gravel mining, not only the original natural landscape and ecological system are destroyed, but also problems such as soil quality and soil erosion are caused.

[0006] In order to solve the above two problems, we specially propose a halogen water swamp inner tower base area construction platform. CONTENT OF UTILITY MODEL

[0007] The utility model aims at providing a halogen water swamp inner tower base area construction platform construction method, to solve the two major problems of high cost, easy to cause environmental damage and soil erosion in building tower base area construction platform in halogen water swamp.

[0008] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0009] A kind of brine marsh inner tower base area construction platform, including environmental soil base layer, salt rock base layer, water separation ditch, bamboo jump plate and water separation well;

[0010] The environmental soil base layer is the original soil layer in the brine marsh, used to support the load transmitted by the salt rock base layer,

[0011] A trapezoidal structure salt rock base layer is built above the environmental soil base layer, and an inverted trapezoidal structure water separation ditch is excavated on both sides of the environmental soil base layer.

[0012] The salt rock base layer is the construction platform, and the surface of the salt rock base layer is provided with a functional area and a convenient path area.

[0013] Preferably, the height of the salt rock base layer is 0.5-1.0m

[0014] Preferably, the depth of the water separation ditch is 0.5m-1.0m.

[0015] Preferably, the width of the bamboo jump plate is equal to the width of the convenient path, and the width of the bamboo jump plate is 5.0-6.0m, and the thickness is 0.01-0.05m.

[0016] Preferably, the functional area includes a tool area, a steel area, a ground material area, a water storage pool, a rest area, a steel cage area, a mud pool, an excavation area and a spoil area.

[0017] The environmental soil base layer of the platform is the original soil in the brine marsh, which supports the load transmitted by the salt rock base layer and uniformly distributes it to a wider soil layer, reducing stress concentration. The salt rock base layer is a trapezoidal structure, which is filled with the original soil in the brine marsh excavated by the water separation ditch and the water separation well, and is formed by repeated rolling and salt water pouring. The water separation ditch is an inverted trapezoidal structure, which is lower than the groundwater level or the surface water level. The bamboo jump plate is made of bamboo and is laid in the convenient path area of the salt rock base layer construction platform, mainly serving to level the road and disperse vehicle load. The water separation well is a hole excavated below the ground and the water separation ditch, which is used to better and faster separate the water in the salt rock base layer of the construction platform, and finally forms a hard salt rock base layer.

[0018] Compared with the prior art, the brine marsh inner tower base area construction platform has the following beneficial effects:

[0019] 1. The salt rock base layer is built by excavating the brine marsh original soil around, which is usually 0.5-1.0m higher than the ground surface or the highest water level (with surface water), and is rolled once every 0.2-0.3m of excavation and filling during the construction process; finally, the construction platform is built to the designed elevation, and then salt water (underground water or surface water in the brine marsh) is poured several times, and then rolling is carried out, and the process is repeated several times until the bearing capacity requirement is reached. By setting the water separation ditch and the water separation well, the water level of the construction platform can be effectively reduced, the brine marsh original soil can be dehydrated, the pore water pressure of the dehydrated brine marsh soil is reduced, and the effective stress is increased; in addition, the salt separated from the brine marsh soil becomes crystalline and hardens to form a hard shell, thereby effectively improving the bearing capacity of the platform. The platform does not need to purchase gravel, earthwork and steel plates, and the cost per square meter is about 85 yuan, which is greatly reduced compared with the construction method of the conventional construction platform.

[0020] 2. The utility model patent does not need to additionally purchase gravel or steel plates or steel pipes and steel frames for building the construction platform, and does not need to purchase earthwork for vegetation restoration, and does not cause environmental damage and soil erosion. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a platform structure schematic view of the brine marsh tower foundation construction area of the utility model.

[0022] Figure 2 It is a salt rock base layer plane schematic view of the brine marsh tower foundation construction area platform of the utility model.

[0023] In the figure: 1, environmental soil base layer; 2, salt rock base layer; 3, water separation ditch; 4, water separation well; 5, bamboo jump board. DETAILED DESCRIPTION

[0024] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be further described in detail below in combination with the drawings and specific embodiments, and the following embodiments are only used to illustrate the utility model, but not to limit the scope of the utility model.

[0025] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0026] EMBODIMENT

[0027] The utility model provides a construction platform of halogen water marsh inner tower foundation area, including environmental soil base layer 1, salt rock base layer 2, water separation ditch 3, bamboo springboard 5 and water separation well 4,

[0028] The environmental soil base layer 1 is the original soil layer in the halogen water marsh, and the salt rock base layer 2 with the trapezoidal structure and the height of 0.5-1.0 m is built above the environmental soil base layer 1, the salt rock base layer is used as the construction platform, the water separation ditch 3 with the inverted trapezoidal structure is excavated on the environmental soil base layer 1 on both sides of the salt rock base layer 2, and the depth of the water separation ditch is 0.5 m-1.0 m; the salt rock base layer is the original soil filling layer excavated in the halogen water marsh for the water separation ditch and the water separation well;

[0029] The salt rock base layer used as the construction platform is provided with the functional area and the convenient path area, the bamboo springboard 5 is laid on the convenient path area, the width of the bamboo springboard 5 is equivalent to the width of the convenient path, the width of the bamboo springboard is 5.0-6.0 m, and the thickness is 0.01-0.05 m.

[0030] The water separation well with the cylindrical shape is vertically excavated in the salt rock base layer on the functional area, and the water separation well is lower than the water separation ditch.

[0031] The width of the upper portion of the salt rock base layer can be determined according to the width of each functional area in the standard "Calculation method of construction land occupation engineering quantity of overhead transmission line engineering" (GDGC-2023-01) published by State Grid Corporation of China, the plane arrangement mode of each functional area of the construction platform is shown in the drawing, and the functional area can be divided into the tool area, the steel material area, the ground material area, the water storage pool, the rest area, the steel reinforcement cage area, the mud pool, the excavation area and the spoil area. Figure 2 The height of the salt rock base layer can be determined according to the ground resistance required by the heaviest construction machinery through test, and is usually 0.5 m-1.0 m. The slope gradient of the salt rock base layer can be valued according to the self-standing property of the halogen water marsh soil or according to the relevant specification. The arrangement mode, interval, diameter and depth of the water separation well can be determined according to the required drainage capacity of the salt rock base layer and the drainage capacity of the water separation ditch.

[0032] The environmental soil base is the original soil in the brine marsh, supports the load transmitted by the salt rock base, distributes the load to the wider soil layer, reduces stress concentration; the salt rock base is a trapezoidal structure, is filled with the original soil in the brine marsh dug by the brine ditch and the brine well, is formed through repeated rolling and pouring of brine, forms the hard salt rock base after crystallization, supports the load of construction machinery and transported materials, and transmits the load to the environmental soil base; the brine ditch is a reverse trapezoidal structure, is lower than the underground water level or the surface water level, performs brine separation on the salt rock base through the natural hydraulic slope, reduces the underground water level of the salt rock base, reduces pore water, is beneficial to prevent upward migration of underground water and salt, improves the bearing capacity of the salt rock base, and enhances the quality; the bamboo jump plate is processed from the bamboo, is paved in the convenient path area of the salt rock base construction platform, mainly plays the roles of leveling the road and dispersing the vehicle load. The brine well is a hole excavated lower than the ground and the brine ditch, is used for better and faster separation of water in the salt rock base of the construction platform, and finally forms the hard salt rock base.

[0033] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A platform for construction of a tower foundation in a brine bog, characterized in that The environment soil base layer is the original soil layer in the brine marsh, and is used for supporting the load transmitted by the salt rock base layer. The environment soil base layer is the original soil layer in the brine marsh, and is used for supporting the load transmitted by the salt rock base layer. The salt rock base layer is the construction platform layer, and the surface of the salt rock base layer is provided with a functional area and a convenient path area.

2. A platform for construction of a tower in a brine lagoon according to claim 1, characterized in that: The salt rock base layer is the original soil filling layer in the brine marsh excavated by the brine ditch and the brine well.

3. A platform for construction of a tower in a brine lagoon according to claim 1, wherein: The height of the salt rock base layer is 0.5-1.0 m.

4. A platform for construction of a tower in a brine lagoon according to claim 1, wherein: The depth of the brine ditch is 0.5-1.0 m.

5. A platform for construction of a tower in a brine lagoon according to claim 1, wherein: The width of the bamboo jump board is equal to the width of the convenient path.

6. A platform for construction of a tower in a brine lagoon according to claim 1, wherein: The width of the bamboo jump board is 5.0-6.0 m, and the thickness is 0.01-0.05 m.

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