CN111733844A - Foundation pit drainage structure for urban underground comprehensive pipe gallery and construction method of foundation pit drainage structure - Google Patents
Foundation pit drainage structure for urban underground comprehensive pipe gallery and construction method of foundation pit drainage structure Download PDFInfo
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- CN111733844A CN111733844A CN202010416166.7A CN202010416166A CN111733844A CN 111733844 A CN111733844 A CN 111733844A CN 202010416166 A CN202010416166 A CN 202010416166A CN 111733844 A CN111733844 A CN 111733844A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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Abstract
The invention discloses a drainage structure for a foundation pit of an urban underground comprehensive pipe gallery and a construction method of the drainage structure. The drainage structure is convenient to install and use at different working positions, the drainage main body is convenient to overhaul, the whole engineering structure can reach the earthquake fortification target with the performance of more than C, and the stability of the working state of the drainage structure can be ensured.
Description
Technical Field
The invention relates to the technical field of urban underground pipelines, in particular to a drainage structure for a foundation pit of an urban underground comprehensive pipe gallery and a construction method thereof.
Background
The urban comprehensive underground pipe gallery mainly refers to a city underground structure which can contain pipeline additives required in urban engineering and various facilities to be laid underground, wherein the various facilities include but are not limited to municipal public pipelines such as water supply, sewage, rainwater, natural gas, communication and the like, but do not include industrial pipelines. The comprehensive pipe gallery can be planned and designed only after the consent of relevant managers and experts, the later maintenance work needs to be planned and designed synchronously, the pipe gallery is required to be synchronized with fire fighting, power supply, illumination and ventilation during the construction period, and a drainage structure is required to be used in the drainage process of a foundation pit of the pipe gallery;
the existing foundation pit drainage structure is inconvenient to install and use at different working positions, and a drainage main body is inconvenient to overhaul, so that the foundation pit drainage structure for the urban underground comprehensive pipe gallery and the construction method thereof are provided to solve the problems.
Disclosure of Invention
The invention aims to solve the problems that a foundation pit drainage structure in the prior art is inconvenient to install and use at different working positions and a drainage main body is inconvenient to overhaul, and provides a foundation pit drainage structure for an urban underground comprehensive pipe gallery and a construction method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a be used for city utility tunnel foundation ditch drainage structures, includes the fixture block that two symmetries set up, two be equipped with the drainage main part between the fixture block, two all be equipped with on the fixture block and match the first fixed establishment that sets up with the drainage main part, two the both ends of fixture block all are equipped with second fixed establishment, and two all be equipped with installation mechanism, two on the second fixed establishment all be equipped with cooling mechanism on the fixture block.
Preferably, the first fixing mechanism comprises a vertically arranged supporting plate, one end of the supporting plate is connected with the inner wall of the fixture block through a telescopic connecting rod, a horizontally arranged moving plate is fixedly connected to the other end of the supporting plate, the moving plate penetrates through the side wall of the fixture block, a mounting plate which is matched with the moving plate is arranged on one side wall of each of the two fixture blocks, driving motors are arranged on the mounting plates, the output ends of the two driving motors are connected with gears, and tooth grooves which are meshed with the gears are formed in the side wall of the moving plate.
Preferably, second fixed establishment includes hollow structure's fixed plate, the fixed plate internal rotation is connected with the threaded rod, and the threaded rod runs through the lateral wall setting of fixed plate, the cover is equipped with the nut that two symmetries set up on the threaded rod, and equal fixedly connected with splint on two nuts, be equipped with the bar opening that matches the setting with two splint on the lateral wall of fixed plate, and two splint all run through the bar opening setting.
Preferably, the mounting mechanism comprises a horizontally arranged connecting plate, and a plurality of mounting screws are arranged on the connecting plate.
Preferably, cooling mechanism includes the refrigerator, and the fixed intercommunication of the output of refrigerator has hollow structure's dispersion board, be equipped with the intercommunicating pore on the dispersion board, and be equipped with the dust screen in the intercommunicating pore, the both sides of dispersion board all insert and are equipped with the inserted bar that matches the setting with the dust screen, and the both sides of dispersion board all are equipped with the buckle that matches the setting with the inserted bar.
Preferably, the external screw thread of threaded rod comprises first external screw thread and the second external screw thread that the symmetry set up, and two nuts overlap respectively and establish on first external screw thread and second external screw thread, first external screw thread and second external screw thread revolve to opposite setting, and are equipped with the nut on the threaded rod.
A foundation pit drainage structure for an urban underground comprehensive pipe gallery and a construction method thereof comprise the following steps:
1) comprehensive pipe rack structural analysis: the structural analysis of the comprehensive pipe gallery is inseparable from the application of the knowledge of soil mechanics, different analysis conclusions can be obtained by calculating different contents in soil mechanics under different assumed conditions, but the different analysis conclusions are different from different geological conditions, such as: rankine soil pressure theory, Coulomb soil pressure theory, wedge body calculation method and the like are commonly used in soil pressure calculation, wherein the Rankine soil pressure theory assumes that the rear filling surface of a wall is horizontal, and the back of the retaining wall is vertical and smooth; the coulomb soil pressure theory assumes that the soil filling behind the wall is uniform and has no cohesive soil, the soil filling surface can be inclined, the wall surface is rough, the application range of the wedge body calculation method is wider, but the calculation process is complicated;
2) design of important nodes of the comprehensive pipe rack structure:
a node type;
utility tunnel and surveillance center's connecting channel:
utility tunnel intersect:
3) the structural design of city utility tunnel ground.
The invention has the following beneficial effects:
1. the connecting plate is arranged at a mounting position, the mounting of a plurality of mounting screws is convenient for mounting the connecting plate, the first external thread and the second external thread are arranged in opposite directions, the threaded rod can be rotated to drive the two nuts to move in opposite directions, so that the two clamping plates are driven to move in opposite directions, the two clamping plates are matched, the two clamping blocks are fixedly connected, the driving motor can drive the gear to rotate, so that the moving plate is driven to move in the horizontal direction, the abutting plates are driven to move in the horizontal direction, the two abutting plates are matched, drainage main bodies of different models are fixed, and the refrigerator is matched with the dispersion plate, so that the drainage main bodies are protected by cooling;
2. through analysis and calculation and corresponding reinforcement measures, various calculation indexes meet the standard requirements under the condition of frequent earthquakes, the earthquake-resistant performance requirements of key component elasticity and no shearing damage of all components can be met under the condition of fortification earthquakes, the deformation requirements can be met under the condition of rare earthquakes, and most of vertical components do not enter the collapse state, so that the whole engineering structure can be considered to reach the earthquake-resistant fortification target above the performance C, and the stability of the working state of the drainage structure can be ensured.
Drawings
FIG. 1 is a schematic structural diagram of a foundation pit drainage structure for an urban underground comprehensive pipe gallery, which is provided by the invention;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
fig. 3 is a schematic structural diagram at B in fig. 1.
In the figure: the device comprises a clamping block 1, a drainage main body 2, a pressing plate 3, a telescopic connecting rod 4, a moving plate 5, a mounting plate 6, a driving motor 7, a gear 8, a fixing plate 9, a threaded rod 10, a nut 11, a clamping plate 12, a connecting plate 13, a mounting screw 14, a refrigerator 15, a dispersion plate 16, a dust screen 17, an inserting rod 18, a buckle 19 and a nut 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-3, a drainage structure for a foundation pit of an urban underground comprehensive pipe gallery comprises two symmetrically arranged clamping blocks 1, a drainage main body 2 is arranged between the two clamping blocks 1, first fixing mechanisms matched with the drainage main body 2 are arranged on the two clamping blocks 1, second fixing mechanisms are arranged at two ends of the two clamping blocks 1, installation mechanisms are arranged on the two second fixing mechanisms, cooling mechanisms are arranged on the two clamping blocks 1, the first fixing mechanisms comprise vertically arranged abutting plates 3, one ends of the abutting plates 3 are connected with the inner walls of the clamping blocks 1 through telescopic connecting rods 4, moving plates 5 horizontally arranged are fixedly connected at the other ends of the abutting plates 3, the moving plates 5 penetrate through the side walls of the clamping blocks 1, installation plates 6 matched with the moving plates 5 are arranged on the side walls of one side opposite to the two clamping blocks 1, and driving motors 7 are arranged on the two installation plates 6, the output ends of the two driving motors 7 are connected with gears 8, tooth grooves meshed with the gears 8 are arranged on the side wall of the movable plate 5, the second fixing mechanism comprises a fixing plate 9 with a hollow structure, a threaded rod 10 is rotationally connected in the fixing plate 9, the threaded rod 10 penetrates through the side wall of the fixing plate 9, two nuts 11 symmetrically arranged are sleeved on the threaded rod 10, clamping plates 12 are fixedly connected on the two nuts 11, strip-shaped openings matched with the two clamping plates 12 are arranged on the side wall of the fixing plate 9, the two clamping plates 12 penetrate through the strip-shaped openings, the mounting mechanism comprises a horizontally arranged connecting plate 13, a plurality of mounting screws 14 are arranged on the connecting plate 13, the cooling mechanism comprises a refrigerator 15, the output end of the refrigerator 15 is fixedly communicated with a dispersion plate 16 with a hollow structure, communication holes are arranged on the dispersion plate 16, and a dust, the two sides of the dispersion plate 16 are respectively inserted with an insertion rod 18 matched with the dust screen 17, the two sides of the dispersion plate 16 are respectively provided with a buckle 19 matched with the insertion rod 18, the external thread of the threaded rod 10 is composed of a first external thread and a second external thread which are symmetrically arranged, the two nuts 11 are respectively sleeved on the first external thread and the second external thread, the rotating directions of the first external thread and the second external thread are opposite, the threaded rod 10 is provided with a nut 20, the connecting plate 13 is arranged at the mounting position, the mounting of the connecting plate 13 is facilitated by the mounting of the mounting screws 14, the threaded rod 10 can drive the two nuts 11 to move in opposite directions by rotating the first external thread and the second external thread, so as to drive the two clamping plates 12 to move in opposite directions, so that the two clamping plates 12 are matched, the two clamping blocks 1 are fixedly connected, the driving motor 7 can drive the gear 8 to rotate, so as to drive the moving plate 5 to move in, the abutting plates 3 are driven to move in the horizontal direction, so that the two abutting plates 3 are matched to fix the drainage main bodies 2 of different models, and the refrigerator 15 is matched with the dispersion plate 16 to facilitate cooling protection of the drainage main bodies 2.
A foundation pit drainage structure for an urban underground comprehensive pipe gallery and a construction method thereof comprise the following steps:
1) comprehensive pipe rack structural analysis: the structural analysis of the comprehensive pipe gallery is inseparable from the application of the knowledge of soil mechanics, different analysis conclusions can be obtained by calculating different contents in soil mechanics under different assumed conditions, but the different analysis conclusions are different from different geological conditions, such as: rankine soil pressure theory, Coulomb soil pressure theory, wedge body calculation method and the like are commonly used in soil pressure calculation, wherein the Rankine soil pressure theory assumes that the rear filling surface of a wall is horizontal, and the back of the retaining wall is vertical and smooth; the coulomb soil pressure theory assumes that the soil filling behind the wall is uniform and has no cohesive soil, the soil filling surface can be inclined, the wall surface is rough, the application range of the wedge body calculation method is wider, but the calculation process is complicated;
2) design of important nodes of the comprehensive pipe rack structure:
the node type is as follows: in the structural design of the comprehensive pipe gallery, the nodes are divided into various types, such as a lifting port, an air inlet and outlet port, an inlet and outlet port of workers, various connecting channels between the pipe gallery and the like in the comprehensive pipe gallery, in the actual structural design, the pipe gallery engineering must be analyzed in advance, and particularly, the nodes between the pipe gallery and a monitoring center and the nodes between the pipe gallery and the pipe gallery must be strictly controlled;
utility tunnel and surveillance center's connecting channel: the method has the advantages that convenience in construction of the power cable and the monitoring cable is ensured, the fact that the power cable and the monitoring cable are staggered mutually is avoided, construction and later maintenance are not facilitated, in the process of designing the comprehensive pipe rack, attention needs to be paid to the size of a passage connected with the pipe rack, the total number of the traffic stairs of a monitoring center and various cables needs to be taken into consideration, the connecting passage is generally divided into a manned type and a manned type, the type of the passage needs to be selected actually when structure design is conducted, the manned type is adopted generally when a soil layer is shallow, the manned type is adopted if the soil layer is thick, in the process of designing the connecting passage, the working face of workers in underground traffic and during pipeline construction and maintenance needs to be considered, the section width of the comprehensive pipe rack is increased within a feasible range, in the process of designing, a plurality of fireproof doors need to be arranged between the comprehensive pipe;
utility tunnel intersect: experience from previous pipe gallery construction has shown that if the utility tunnel is designed to be in a ring network, it is possible to maximize the utility of the utility tunnel. Through repeated comparison, the utility tunnel is most suitable for adopting a cross shape and a T shape. When the cross joint design is carried out, the connection problem of internal pipelines and the passing problem of personnel near an underground pipe gallery are considered by working personnel, generally, the joint increase or the widening of the construction area of the underground pipe gallery or the addition of a stair (interlayer) are adopted for solving the two problems, the mutual connection of the internal pipelines of the underground pipe gallery and the smooth walking of the working personnel can be ensured by adding auxiliary conditions, the work is carried out strictly according to relevant regulations when the structure design is carried out, the height and the width of the joint of the pipe gallery and the size of relevant equipment are ensured to be strictly controlled, the smooth installation of air-conditioning water pipes, water supply pipes and valves is ensured, and the clear distance between the pipe galleries is at least 0.4 m; in addition, different cabins are connected in different modes, designers need to analyze the cabins according to surrounding geographic environments, division of fireproof areas is well made, and fireproof doors need to be properly arranged between the pipe gallery and the interlayer;
3) the structural design of city utility tunnel ground: the construction of underground pipe gallery is usually several kilometers or longer underground engineering, and the geographic environment of our country is complicated and various, when carrying on the underground construction, meet different terrain environment very easily, such as the soft soil foundation that is easy to be hit and all has high water content in the coastal city, can not reduce the distance of the exploration hole while surveying, otherwise will lead to the foundation not to be well controlled, if meet the exploration hole and can not carry on the foundation control effectively, can make some measure adjustment, such as some coastal cities that the foundation bearing capacity is relatively poor, if do not process the pipe gallery foundation while carrying on the pipe gallery construction, in case the pipe gallery foundation appears and warp or the crack, will lead to the pipe gallery to leak, even collapse, can adopt and pile the preloading or CFG pile gallery foundation to process while carrying on the pipe gallery construction, let the deformation of the foundation in the controllable range, in the course of carrying on the construction, an important construction process is groove inspection, all the soil filling layers are excavated under the condition that the soil filling layers are not very thick, the thickness of the cushion layers is increased, for example, the range of filling sundries is large, when the soil filling layers are thicker, the soil filling layers are compacted in the construction process according to the construction conditions, conditions and material supply conditions at the time, and some construction technologies such as soil filling layer replacement and the like and construction requirements are carried out, the hoop ratio and the diameter of the waist bars of the connecting beams are properly improved, so that the earthquake energy is more reasonably dissipated by the damage mechanism of the connecting beams, the requirement of the earthquake resistance target is met, and obliquely crossed hidden braces are properly arranged on the connecting beams with large high span ratio to meet the requirement of strong shearing weak bending.
According to the invention, the connecting plate 13 is arranged at the mounting position, the mounting of the connecting plate 13 is facilitated by additionally mounting the mounting screws 14, the first external thread and the second external thread are arranged in opposite directions, the threaded rod 10 can be rotated to drive the two nuts 11 to move in opposite directions, so that the two clamping plates 12 are driven to move in opposite directions, the two clamping plates 12 are matched, the two clamping blocks 1 are fixedly connected, the driving motor 7 can drive the gear 8 to rotate, so that the moving plate 5 is driven to move in the horizontal direction, the abutting plates 3 are driven to move in the horizontal direction, the two abutting plates 3 are matched to fix the drainage main bodies 2 of different models, and the refrigerator 15 is matched with the dispersion plate 16, so that the cooling protection of the drainage main bodies 2 is facilitated.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A drainage structure for a foundation pit of an urban underground comprehensive pipe gallery comprises two symmetrically arranged clamping blocks (1), and is characterized in that a drainage main body (2) is arranged between the two clamping blocks (1), first fixing mechanisms matched with the drainage main body (2) are arranged on the two clamping blocks (1), second fixing mechanisms are arranged at two ends of the two clamping blocks (1), installation mechanisms are arranged on the two second fixing mechanisms, cooling mechanisms are arranged on the two clamping blocks (1), each first fixing mechanism comprises a vertically arranged abutting plate (3), one end of each abutting plate (3) is connected with the inner wall of each clamping block (1) through a telescopic connecting rod (4), a horizontally arranged moving plate (5) is fixedly connected to the other end of each abutting plate (3), and the moving plates (5) penetrate through the side wall of each clamping block (1), mounting plates (6) matched with the moving plate (5) are arranged on the side walls of the two clamping blocks (1) on the opposite sides, driving motors (7) are arranged on the two mounting plates (6), the output ends of the two driving motors (7) are connected with gears (8), and tooth grooves meshed with the gears (8) are formed in the side walls of the moving plate (5); second fixed establishment includes hollow structure's fixed plate (9), fixed plate (9) internal rotation is connected with threaded rod (10), and threaded rod (10) run through the lateral wall setting of fixed plate (9), the cover is equipped with nut (11) that two symmetries set up on threaded rod (10), and equal fixedly connected with splint (12) on two nuts (11), be equipped with the bar opening that matches the setting with two splint (12) on the lateral wall of fixed plate (9), and two splint (12) all run through the bar opening setting.
2. The drainage structure for the foundation pit of the urban underground comprehensive pipe gallery according to claim 1, wherein the mounting mechanism comprises a horizontally arranged connecting plate (13), and a plurality of mounting screws (14) are arranged on the connecting plate (13).
3. The drainage structure for the foundation pit of the urban underground comprehensive pipe gallery according to claim 1, wherein the cooling mechanism comprises a refrigerator (15), the output end of the refrigerator (15) is fixedly communicated with a dispersion plate (16) with a hollow structure, a communication hole is formed in the dispersion plate (16), a dustproof net (17) is arranged in the communication hole, insertion rods (18) matched with the dustproof net (17) are inserted into two sides of the dispersion plate (16), and buckles (19) matched with the insertion rods (18) are arranged on two sides of the dispersion plate (16).
4. The drainage structure for the urban underground comprehensive pipe gallery foundation pit according to claim 3, wherein the external thread of the threaded rod (10) consists of a first external thread and a second external thread which are symmetrically arranged, and two nuts (11) are respectively sleeved on the first external thread and the second external thread.
5. The drainage structure for the foundation pit of the urban underground comprehensive pipe gallery according to claim 4, wherein the first external thread and the second external thread are oppositely arranged in rotation direction, and a nut (20) is arranged on the threaded rod (10).
6. The construction method for the urban underground comprehensive pipe gallery foundation pit drainage structure according to claim 1, characterized by comprising the following steps:
1) comprehensive pipe rack structural analysis: the structural analysis of the comprehensive pipe gallery is inseparable from the application of the knowledge of soil mechanics, different analysis conclusions can be obtained by calculating different contents in soil mechanics under different assumed conditions, but the different analysis conclusions are different from different geological conditions, such as: rankine soil pressure theory, Coulomb soil pressure theory, wedge body calculation method and the like are commonly used in soil pressure calculation, wherein the Rankine soil pressure theory assumes that the rear filling surface of a wall is horizontal, and the back of the retaining wall is vertical and smooth; the coulomb soil pressure theory assumes that the soil filling behind the wall is uniform and has no cohesive soil, the soil filling surface can be inclined, the wall surface is rough, the application range of the wedge body calculation method is wider, but the calculation process is complicated;
2) design of important nodes of the comprehensive pipe rack structure:
a node type;
utility tunnel and surveillance center's connecting channel:
utility tunnel intersect:
3) the structural design of city utility tunnel ground.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010416166.7A CN111733844A (en) | 2020-05-17 | 2020-05-17 | Foundation pit drainage structure for urban underground comprehensive pipe gallery and construction method of foundation pit drainage structure |
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| CN202010416166.7A CN111733844A (en) | 2020-05-17 | 2020-05-17 | Foundation pit drainage structure for urban underground comprehensive pipe gallery and construction method of foundation pit drainage structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112240440A (en) * | 2020-10-15 | 2021-01-19 | 温州融宸科技有限公司 | Support beam supporting device of municipal shield tunnel |
| CN113833015A (en) * | 2021-08-24 | 2021-12-24 | 南京工业大学 | Liquefaction-resistant and floating-resistant underground comprehensive pipe gallery structure and application method thereof |
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