Prefabricated segment reinforced bamboo winding composite pipe structure

Abstract

The utility model discloses a prefabricated pipe piece reinforced bamboo winding composite pipe structure, which belongs to the field of pipeline engineering and comprises a bamboo winding composite pipe and a pipe piece lining ring matched with the bamboo winding composite pipe. The filling layer between the bamboo winding composite pipe and the segment lining ring is grouted and filled with high-strength polymer waterproof mortar; the prefabricated concrete pipe pieces can bear the soil pressure on the outer side of the bamboo winding composite pipe structure, and the annular rigidity and the deformation resistance of the bamboo winding composite pipe are improved. Through force transmission of the high-strength polymer waterproof mortar filling layer, the prefabricated concrete pipe piece can further improve the internal pressure bearing capacity of the bamboo winding composite pipe, and the utility model further discloses an assembly type construction method of the prefabricated pipe piece reinforced bamboo winding composite pipe structure. The segment lining ring formed by splicing the prefabricated concrete segments is matched with the bamboo winding composite pipe, and the effect of enhancing the annular rigidity and the bearing capacity is remarkable.

Description

TECHNICAL FIELD

[0001] The utility model relates to civil engineering tunnel pipeline engineering technical field especially, relate to a kind of prefabricated pipe piece reinforced bamboo winding composite pipe structure and its assembly type construction method. BACKGROUND

[0002] Traditional metal, plastic, cement and other underground pipelines and pipe gallery structures have some limitations in use, such as metal pipelines are prone to corrosion, plastic pipelines have aging and environmental pollution problems, cement pipelines are heavy and prone to breakage, etc. To overcome the above difficulties, a structure is disclosed in Chinese Patent No. CN118544640A entitled "Bamboo Winding Composite Pipe and Its Preparation Method": from inside to outside along the radial direction, it is an inner lining layer, a reinforcing layer and an outer protective layer; the inner lining layer is a fabric layer, which is formed by winding and curing the fabric soaked with unsaturated polyester resin; the reinforcing layer is a cured layer, which is formed by winding and curing the bamboo splints and mesh cloth soaked with water-based amino resin or epoxy resin; the outer protective layer includes a resin layer covering the surface of the reinforcing layer and a coating layer covering the surface of the resin layer. The above-mentioned patent proposes a new type of bamboo winding composite pipe structure, which processes bamboo by cutting, peeling, softening, lengthening, etc., and uses thermosetting resin as an adhesive to tightly wind and cure the bamboo strips into a shape. A bamboo winding composite pipe with high strength, corrosion resistance, light weight and other characteristics is developed. As a new type of environmentally friendly pipeline, bamboo winding composite pipe is widely used in urban underground pipeline network and pipe gallery structure. The diameter of bamboo winding composite pipe can reach 8m. Considering only the pipeline and pipe gallery field, there is more than 100 billion potential market in China every year, which shows great application prospects. However, some problems have been found in use: first, in actual use, bamboo winding composite pipe may be subjected to certain load for a long time, such as soil pressure and ground traffic load on buried pipeline. Due to its limited ring stiffness, the pipeline may gradually deform under long-term load, resulting in a decrease in its carrying capacity and affecting the normal use and service life of the pipeline; second, the internal pressure rating of bamboo winding composite pipe is limited, and it is generally suitable for medium and low pressure fluid conveying systems, such as municipal water supply and drainage, farmland irrigation, etc. Its application in high pressure industrial pipeline system is limited. For some special working conditions that require high pressure, bamboo winding composite pipe may not meet the requirements. To solve the above problems, it is necessary to improve its ring stiffness and carrying capacity.

[0003] Therefore, due to the restriction of the material and structural characteristics of the bamboo winding composite pipe, the problem of insufficient ring stiffness and bearing capacity of the bamboo winding composite pipe is increasingly prominent in actual engineering applications. Especially under the complex working conditions of bearing external soil pressure, ground dynamic load and internal fluid high pressure, the existing bamboo winding composite pipe is prone to deformation and reduction of bearing capacity, which seriously limits its application in municipal pipe networks and industrial transportation fields with higher requirements, and the industry urgently needs a composite structure scheme that can effectively enhance the ring stiffness and bearing capacity. Utility model content

[0004] The utility model aims at providing a prefabricated pipe piece reinforced bamboo winding composite pipe structure and a fabricated construction method which can solve the defects of ring stiffness and bearing capacity in the prior art.

[0005] To achieve the purpose, the utility model adopts the following technical scheme:

[0006] The prefabricated pipe piece reinforced bamboo winding composite pipe structure, comprising a bamboo winding composite pipe and a pipe piece lining ring matched with the bamboo winding composite pipe, the pipe piece lining ring comprises six prefabricated concrete pipe pieces spliced into a ring, from bottom to top, the six prefabricated concrete pipe pieces are an arch bottom block, right and left side blocks, right and left adjacent blocks and a top sealing block, the whole bamboo winding composite pipe is a tubular structure, and is formed by winding bamboo as a base material; after all the pipe piece lining rings are spliced and installed, the bamboo winding composite pipe is inserted into the pipe piece lining rings; a filling layer is arranged between the bamboo winding composite pipe and the pipe piece lining ring; and the filling layer is grouted and filled with high-strength polymer waterproof mortar.

[0007] Further, the prefabricated concrete pipe piece is provided with a connecting hole, and the connecting hole comprises a ring connecting hole, and two adjacent prefabricated concrete pipe pieces arranged in a ring are connected through the ring connecting hole by a connecting bolt.

[0008] Further, the pipe piece lining ring is provided in plurality, and the connecting hole further comprises a longitudinal connecting hole, and two adjacent pipe piece lining rings arranged in a longitudinal direction are connected through the longitudinal connecting hole by a connecting bolt.

[0009] Further, the end socket of the pipe piece lining ring is further provided with a sealing rubber ring.

[0010] Further, the ring joint of the two adjacent pipe piece lining rings arranged in a longitudinal direction is further provided with a rubber waterstop.

[0011] Further, the spigot of the bamboo winding composite pipe is tightly sealed with the sealing rubber ring after being inserted into the pipe piece lining ring.

[0012] Further, the prefabricated concrete pipe piece is provided with a grouting hole and a mortar outlet hole.

[0013] The utility model discloses a kind of prefabricated pipe piece reinforced bamboo winding composite pipe structures, compared with prior art, with following beneficial effects:

[0014] 1) using the utility model method, compared with traditional excavation construction method, construction is efficient, safe, greatly save time cost;

[0015] 2) in the utility model, prefabricated concrete pipe piece can bear the earth pressure outside composite pipe structure, the ring stiffness and deformation resistance of bamboo winding composite pipe are promoted;Through the force transmission of high-strength polymer waterproof mortar filling layer, prefabricated concrete pipe piece can also improve the ability of bamboo winding composite pipe to withstand internal pressure;

[0016] 3) prefabricated concrete pipe piece production can be carried out simultaneously with construction, to a certain extent, parallel operation can be realized;Factory can continuously produce prefabricated concrete pipe piece according to construction progress plan, and installation can be carried out as long as prefabricated concrete pipe piece meets strength requirement at construction site, which reduces the time of waiting for concrete to meet strength at site and improves overall construction efficiency;

[0017] 4) the end socket of pipe piece lining ring is provided with sealing rubber ring, and the position and size of the sealing rubber ring are accurately designed to tightly fit the bamboo winding composite pipe spigot, so that good sealing effect is achieved;

[0018] 5) the utility model method, construction process can be arranged underground and unfolded at night, with flexibility of pausing work at any time, without causing any obstruction to conventional traffic order on ground during day, effectively realizing the harmony of underground construction and ground traffic. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 it is the schematic diagram of prefabricated pipe piece reinforced bamboo winding composite pipe structure in the embodiment of the utility model;

[0020] Figure 2 it is longitudinal section view of prefabricated pipe piece reinforced bamboo winding composite pipe structure in the embodiment of the utility model;

[0021] Figure 3 it is transverse section view of prefabricated pipe piece reinforced bamboo winding composite pipe structure in the embodiment of the utility model;

[0022] Mark list is as follows:

[0023] 1, bamboo winding composite pipe;2, filling layer;3, pipe piece lining ring;301, arch bottom block;302, right side block;303, left side block;304, right abutment block;305, left abutment block;306, top block;4, sealing rubber ring;5, rubber waterstop;6, ring direction connecting hole;7, longitudinal direction connecting hole;8, connecting bolt;9, grouting hole;10, slurry outlet hole. DETAILED DESCRIPTION

[0024] In order to better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should belong to the scope of protection of the present application.

[0025] It should be noted that, in the present application, the terms "upper", "lower", "inner", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0026] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0027] In addition, the terms "provided with", "connected", "fixed", and the like should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally constructed; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0028] In addition, the meaning of the term "a plurality of" should be two and more than two.

[0029] The present application discloses a kind of prefabricated pipe piece reinforced bamboo winding composite pipe structure, such as Figure 1 、 Figure 2As shown, including bamboo winding composite pipe 1 and its matching pipe lining ring 3, pipe lining ring 3 includes six blocks of prefabricated concrete segments spliced into a ring, from bottom to top, respectively, arch bottom block 301, right side block 302 and left side block 303, right adjacent block 304 and left adjacent block 305, and top block 306, the whole bamboo winding composite pipe 1 is tubular structure, which is formed by winding bamboo as base material, after all pipe lining rings 3 are spliced and installed, bamboo winding composite pipe 1 is inserted into the inside, and filling layer 2 is arranged between bamboo winding composite pipe 1 and pipe lining ring 3, and the inside of filling layer 2 is filled with high-strength polymer waterproof mortar.

[0030] As shown in Figure 1 and Figure 2 , the prefabricated concrete segment is provided with a circumferential connecting hole 6; two adjacent prefabricated concrete segments arranged circumferentially are connected by a connecting bolt 8 passing through the circumferential connecting hole 6.

[0031] As shown in Figure 1 , Figure 2 , the pipe lining ring 3 has a plurality of connecting holes, and the connecting holes further include a longitudinal connecting hole 7; two adjacent pipe lining rings 3 arranged longitudinally are connected by a connecting bolt 8 passing through the longitudinal connecting hole 7.

[0032] As shown in Figure 2 , the end socket of the pipe lining ring 3 is further provided with a sealing rubber ring 4, which plays a good sealing role.

[0033] As shown in Figure 2 , the circumferential joint of the two adjacent pipe lining rings 3 arranged longitudinally is further provided with a rubber waterstop 5, which can play a waterproof role at the circumferential joint.

[0034] As shown in Figure 1 , the prefabricated concrete segment is provided with a grouting hole 9 and a slurry outlet hole 10, the inside of the filling layer 2 is filled with high-strength polymer waterproof mortar, and the prefabricated concrete segment can also improve the internal pressure bearing capacity of the bamboo winding composite pipe 1 through the force transmission of the high-strength polymer waterproof mortar filling layer.

[0035] The prefabricated segment reinforced bamboo winding composite pipe structure assembly construction method comprises the following steps:

[0036] S1: the prefabricated concrete segment is lowered into the well by a gantry crane, the transportation in the hole is carried out by a segment vehicle, the prefabricated concrete segments on the segment vehicle are orderly stacked, the stacking order is placed according to the segment installation order and transported to the vicinity of the shield machine, then unloaded to the segment feeding machine by the segment hoisting machine, and then sent to the working range of the segment installation machine, and sequentially installed on the corresponding position from bottom to top; after the last block is inserted and fastened, one ring of pipe lining rings 3 is installed, and the next ring can be excavated;

[0037] S2: the prefabricated concrete segment is hoisted by the segment splicing machine and moved to the shield tail position along the crane beam. The prefabricated concrete segment splicing is taken in the principle of from bottom to top, the arch bottom block 301 is installed first, then the right side block 302 and the left side block 303, and then the right adjacent block 304 and the left adjacent block 305, and finally the capping block 306 is installed. When the capping block 306 is installed, it is first radially overlapped by 2 / 3, then pushed up radially, and then inserted longitudinally;

[0038] S3: the sealing rubber ring 4 is installed and fixed in the end socket of the first ring segment lining ring 3 after splicing, and another group of prefabricated concrete segments is connected through the longitudinal connecting hole 7 in the prefabricated concrete segment arranged adjacent longitudinally by the connecting bolt 8, and then the nut is tightened to complete the splicing and form the closed second ring segment lining ring 3. The longitudinal connecting bolt 8 should be tightened in time after each ring is spliced, and the longitudinal connecting bolt 8 is tightened again when the next ring is pushed forward;

[0039] S4: repeat steps S2 and S3 until all segment lining rings 3 are installed;

[0040] S5: before installing the bamboo winding composite pipe 1, the anchor pier is installed, the pipeline support is placed in front of the anchor pier, and then the bamboo winding composite pipe 1 is inserted into the installed segment lining ring 3 by using the pipeline insertion machine and the conveying vehicle. The position and size of the sealing rubber ring 4 are accurately designed to tightly fit the pipe insertion port of the bamboo winding composite pipe 1, and the sealing rubber ring 4 can play a good sealing effect;

[0041] S6: the grouting hole 9 of each prefabricated concrete segment is grouted, plugged and troweled by using high-strength polymer waterproof mortar. The two ends of the grouting space temporarily plugged by the grouting hole are grouted or supplemented by using the grouting equipment through the grouting hole and the grouting hole 9 reserved at the two ends of the grouting space, and then the grouting hole 9 is closed or plugged. After the grouting strength meets the requirements, the plugging at the two ends of the grouting space is removed.

[0042] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A precast segmental reinforced bamboo-wrapped composite pipe structure, characterized by: The bamboo winding composite pipe (1) and the pipe lining ring (3) matched with it are included, the pipe lining ring (3) includes six prefabricated concrete segments spliced into a ring, from bottom to top, the arch bottom segment (301), the right side segment (302) and the left side segment (303), the right adjacent segment (304) and the left adjacent segment (305) and the top segment (306), the whole of the bamboo winding composite pipe (1) is tubular structure, and is formed by winding bamboo as base material, after all the pipe lining rings (3) are spliced and installed, the bamboo winding composite pipe (1) is inserted into the inside, and the filling layer (2) is arranged between the bamboo winding composite pipe (1) and the pipe lining ring (3), and the inside of the filling layer (2) is filled by grouting high-strength polymer waterproof mortar.

2. The pre-fabricated pipe segment reinforced bamboo-wrapped composite pipe structure according to claim 1, characterized in that, The prefabricated concrete segment is provided with a circumferential connecting hole (6), and two adjacent prefabricated concrete segments arranged circumferentially are connected by a connecting bolt (8) penetrating the circumferential connecting hole (6).

3. The pre-fabricated pipe segment reinforced bamboo-wound composite pipe structure according to claim 1, characterized in that, The pipe lining ring (3) has a plurality of prefabricated concrete segments, and the prefabricated concrete segment is provided with a longitudinal connecting hole (7), and two adjacent pipe lining rings (3) arranged longitudinally are connected by a connecting bolt (8) penetrating the longitudinal connecting hole (7), and the end socket of the pipe lining ring (3) is further provided with a sealing rubber ring (4).

4. The pre-fabricated pipe segment reinforced bamboo-wrapped composite pipe structure according to claim 1, wherein, The circumferential joint between the two adjacent pipe lining rings (3) arranged longitudinally is provided with a rubber waterstop (5).

5. The pre-fabricated pipe segment reinforced bamboo-wrapped composite pipe structure according to claim 1, wherein, The prefabricated concrete segment is provided with a grouting hole (9) and a slurry outlet hole (10).

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