Pipe jacking machine hole water stopping equipment and pipe jacking machine
By designing the water-stop equipment at the pipe header, using the two sealing structures and the design of the squeeze chamber, the problem of mud or groundwater overflow during pipe header construction is solved, and good sealing effect and construction safety are achieved.
Patent Information
- Application Number
- CN202422422692.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-10-08
AI Technical Summary
During the construction of the top pipe, the gap between the hole and the top pipe will cause mud or groundwater to overflow and enter the construction well, causing construction difficulties and terrain changes.
Design a water stop device at the pipe header, including a water stop sleeve, elastic barrier and sealing water stop material. Through the design of two sealing structures and a compact chamber, the inflow of silty sand, mud or groundwater is prevented.
A good sealing effect is achieved, and silty sand, mud or groundwater is prevented from entering the construction well, ensuring construction safety and preventing terrain changes.
Smart Images
Figure CN223035022U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipe jacking construction, and particularly relates to a water stop device for the hole of a pipe jacking machine and a pipe jacking machine. Background Art
[0002] Pipe jacking construction is a pipeline laying construction technology with little or no excavation. By means of the jacking force generated by jacking equipment in a working pit, the friction between the pipeline and the surrounding soil is overcome, the pipeline is jacked into the soil according to the designed gradient, and the soil is transported away. After one pipe is jacked into the soil layer, the second pipe is lowered and jacked continuously. Pipe jacking technology is widely used in the laying, replacement and repair of various pipelines under the conditions where excavation is not allowed or not feasible, such as crossing roads, railways, rivers, downtown areas, etc. Due to the advantages of low comprehensive cost, short construction period, small environmental impact, good construction safety, etc., pipe jacking construction technology is widely used in the construction of underground pipelines such as municipal water supply and drainage, communication cables, gas pipelines, and power cables.
[0003] In pipe jacking construction, as the pipe jacking progresses, silty sand, slurry or groundwater in the soil will flow out along the gap between the outer wall of the pipe fitting and the inner wall of the hole, and enter the construction well, causing trouble to construction workers. In addition, the loss of various substances in the soil will also lead to changes in the terrain in the construction area, triggering a series of problems.
[0004] Therefore, the prior art needs to be improved. Summary of the Utility Model
[0005] The technical problem to be solved by the utility model is that the gap between the hole and the pipe jacking will cause the overflow of slurry or groundwater and enter the construction well. The purpose is to provide a water stop device for the hole of a pipe jacking machine and a pipe jacking machine, which adopt corresponding technical means and have the advantages of good sealing effect and avoiding the inflow of silty sand, slurry or groundwater into the construction well.
[0006] The utility model is realized by the following technical solutions:
[0007] In the first aspect, the utility model provides a water stop device for the hole of a pipe jacking machine, which includes a water stop sleeve installed at the hole. The water stop sleeve includes a bell mouth pipe section located on the outside and a cylindrical pipe section located on the inside. The reduced end of the bell mouth pipe section is butted against one end of the cylindrical pipe section. An elastic blocking member I for abutting against the outer wall of the pipe jacking is arranged at the other end of the cylindrical pipe section. A baffle is arranged at the open end of the bell mouth pipe section, and an elastic blocking member II for abutting against the outer wall of the pipe jacking is arranged on the baffle. A storage chamber is arranged between the inner wall of the bell mouth pipe section and the outer wall of the pipe jacking, and a compaction chamber is arranged between the inner wall of the cylindrical pipe section and the outer wall of the pipe jacking. The storage chamber is filled with a plugging and water stop material that is carried by the jacked pipe jacking into the compaction chamber and continuously compacted.
[0008] In the above technical solution, since the plugging and water-stopping material is blocked by the baffle and the elastic blocking member II, it is prevented from overflowing outward from the open end of the trumpet pipe section. During the jacking process of the jacking pipe, the elastic blocking member I serves as the first sealing structure to block the silty sand, slurry or groundwater in the soil from entering the inside of the water-stop casing. The continuously compacted plugging and water-stopping material serves as the second sealing structure. During the jacking process of the jacking pipe, the outer wall of the jacking pipe drives the plugging and water-stopping material in the storage chamber to continuously enter the compaction chamber, and the plugging and water-stopping material in the compaction chamber continuously increases. Furthermore, the plugging and water-stopping material is continuously compacted to block the silty sand, slurry or groundwater from entering. The two sealing structures have a good sealing effect, preventing the silty sand, slurry or groundwater from overflowing.
[0009] Furthermore, in the present utility model, an anti-movement member inserted into the soil is provided on the outer wall of the above-mentioned water-stop casing.
[0010] Furthermore, in the present utility model, the above-mentioned anti-movement member includes a longitudinal plate and a transverse plate.
[0011] Furthermore, in the present utility model, a connecting flange is provided at the end of the above-mentioned cylindrical pipe section, and the elastic blocking member I is provided with a fixing ring, and the fixing ring is fixedly connected to the connecting flange.
[0012] Furthermore, in the present utility model, a sealing ring is provided between the above-mentioned fixing ring and the connecting flange.
[0013] Furthermore, in the present utility model, the above-mentioned fixing ring and the connecting flange are connected by screws.
[0014] Furthermore, in the present utility model, a supplementary pipe is provided at the top of the above-mentioned trumpet pipe section.
[0015] Furthermore, in the present utility model, the above-mentioned elastic blocking member I is configured as an annular rubber sheet, and the elastic blocking member II is configured as an annular airbag.
[0016] Furthermore, in the present utility model, the above-mentioned plugging and water-stopping material is configured as expansive soil.
[0017] In a second aspect, the present utility model further provides a pipe jacking machine, which includes a water-stop device for the pipe jacking machine opening, and further includes a cutter head that passes through the water-stop casing.
[0018] In the above technical solution, since the pipe jacking machine is equipped with a water-stop device for the pipe jacking machine opening, during the process of the cutter head passing through the water-stop casing, it drives the plugging and water-stopping material in the storage chamber to continuously enter the compaction chamber. Furthermore, the plugging and water-stopping material is continuously compacted to block the silty sand, slurry or groundwater from entering. Moreover, the elastic blocking member I can also block the silty sand, slurry or groundwater from entering the construction well, and the double sealing has a good sealing effect.
[0019] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0020] The utility model provides a water stop device for the opening of a pipe jacking machine, which mainly consists of a water stop sleeve, a first elastic blocking member, a baffle plate and a second elastic blocking member. The first elastic blocking member forms the first sealing structure, and the water stop sleeve, the baffle plate and the second elastic blocking member form the second sealing structure. During the pipe jacking process, the outer wall of the pipe jacking drives the plugging and water stop material in the storage chamber to continuously enter the compaction chamber. The plugging and water stop material in the compaction chamber continuously increases, and then the plugging and water stop material is continuously compacted to block the entry of silty sand, slurry or groundwater. The two sealing structures have a good sealing effect, avoiding the entry of silty sand, slurry or groundwater into the construction well, preventing the loss of soil at the opening and the change of terrain, and ensuring the construction safety.
[0021] The utility model also provides a pipe jacking machine, which adopts the water stop device for the opening of the pipe jacking machine. During the process of the cutter head passing through the water stop sleeve, it drives the plugging and water stop material in the storage chamber to continuously enter the compaction chamber, and then the plugging and water stop material is continuously compacted to block the entry of silty sand, slurry or groundwater. Moreover, the first elastic blocking member can also block the entry of silty sand, slurry or groundwater into the construction well, and the double sealing has a good sealing effect. Description of the Drawings
[0022] The drawings described herein are used to provide a further understanding of the embodiments of the utility model, form a part of this application, and do not limit the embodiments of the utility model. In the drawings:
[0023] Figure 1 is a schematic diagram of the water stop device for the opening of the pipe jacking machine of the utility model;
[0024] Figure 2 is Figure 1 an enlarged schematic diagram of part A in
[0025] Figure 3 is a schematic diagram of the cylindrical pipe section of the water stop device for the opening of the pipe jacking machine of the utility model;
[0026] Figure 4 is a schematic diagram of the bellmouth pipe section of the water stop device for the opening of the pipe jacking machine of the utility model.
[0027] Marks in the drawings and corresponding component names: 1 - water stop sleeve, 101 - bellmouth pipe section, 102 - cylindrical pipe section, 103 - connecting flange, 104 - supplementary pipe, 105 - storage chamber, 106 - compaction chamber, 2 - first elastic blocking member, 201 - fixing ring, 3 - baffle plate, 4 - second elastic blocking member, 5 - cutter head, 6 - plugging and water stop material, 7 - anti-movement member, 701 - longitudinal plate, 702 - transverse plate, 8 - screw. Detailed Embodiments
[0028] To make the objectives, technical solutions, and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with embodiments and the accompanying drawings. The illustrative embodiments of the present utility model and their descriptions are only used to explain the present utility model and do not limit the present utility model. The following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.
[0029] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly specified and limited, if the terms "set", "installed", "connected" are used, they 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0030] Embodiment 1
[0031] Embodiment 1 of the present utility model provides a water stop device for the opening of a pipe jacking machine, which mainly consists of four parts: a water stop sleeve 1, an elastic blocking member 1 2, a baffle 3, and an elastic blocking member 2 4, as Figures 1-4 shown, and the specific structure is described as follows.
[0032] Combined with Figure 1 , Figure 3 and Figure 4 shown, the water stop sleeve 1 includes two parts: a cylindrical pipe section 102 on the left and a bellmouth pipe section 101 on the right. The water stop sleeve 1 is made of steel, with high strength and a long service life. The water stop sleeve 1 is installed at the opening of the soil body. The reduced end of the bellmouth pipe section 101 is butted against the right end of the cylindrical pipe section 102, and the open end of the bellmouth pipe section 101 extends out of the opening of the soil body.
[0033] It should be noted that in order to prevent the water stop sleeve 1 from moving or rotating under the influence of the pipe jacking machine, an anti-movement member 7 inserted into the soil body is fixedly installed on the outer wall of the water stop sleeve 1. The anti-movement member 7 includes two types: a longitudinal plate 701 and a transverse plate 702. The bottoms of the longitudinal plate 701 and the transverse plate 702 are welded and fixed to the outer wall of the water stop sleeve 1. As Figure 1As shown, the longitudinal plate 701 functions to prevent the water stop casing 1 from moving horizontally left and right, and the transverse plate 702 functions to prevent the water stop casing 1 from rotating, ensuring that the water stop casing 1 is installed relatively stably, effectively preventing the collapse of the hole, and thus avoiding a series of problems.
[0034] In some embodiments of the present embodiment, the first elastic blocking member 2 is installed at the left port of the cylindrical pipe section 102. Combining Figure 1 , Figure 2 and Figure 3 As shown, the first elastic blocking member 2 uses an annular rubber sheet in the prior art. A fixing ring 201 is fixedly arranged on the outer edge of the first elastic blocking member 2. The fixing ring 201 is a metal sheet and can be fixed to the outer edge of the first elastic blocking member 2 in a clamping manner in cooperation with the passing bolts. A connecting flange 103 is arranged at the left end of the cylindrical pipe section 102. The surface of the connecting flange 103 is attached to the fixing ring 201, and the two are fixedly connected by 12 screws 8. The screws 8 are provided with washers.
[0035] When the cutter head 5 or the pipe jacking advances from the middle of the water stop casing 1 in the jacking direction, the first elastic blocking member 2 abuts against the outer wall of the cutter head 5 or the pipe jacking. At this time, the first elastic blocking member 2 plays a sealing role, preventing the silty sand, slurry or groundwater in the soil from entering the water stop casing 1, and thus preventing the silty sand, slurry or groundwater from entering the construction well.
[0036] It should be noted that in order to increase the sealing effect, a sealing ring is installed between the fixing ring 201 and the connecting flange 103. The fixing ring 201 presses the sealing ring to prevent water and slurry from entering through the gap between the fixing ring 201 and the connecting flange 103, improving the sealing effect.
[0037] In some embodiments of the present embodiment, combining Figure 1 and Figure 4 As shown, the baffle 3 uses an annular plastic ring sheet. The thickness of the plastic ring sheet is not less than 5 cm. The baffle 3 is fixedly connected to the open end of the bellmouth pipe section 101, and the fixing connection method is by screws. The second elastic blocking member 4 uses an annular airbag. The inner edge of the baffle 3 is an arc surface adapted to the airbag, and the second elastic blocking member 4 and the baffle 3 are fixed by bonding. When the cutter head 5 or the pipe jacking passes through the water stop casing 1, the second elastic blocking member 4 abuts tightly against the outer wall of the cutter head 5 or the pipe jacking, playing a sealing role.
[0038] Furthermore, as Figure 1As shown in the figure, the space between the inner wall of the trumpet pipe section 101 and the outer wall of the cutter head 5 or the jacking pipe is the storage chamber 105. A supplementary pipe 104 is installed at the top of the trumpet pipe section 101 extending out of the hole, and the supplementary pipe 104 is communicated with the storage chamber 105. The storage chamber 105 serves as a space for storing the plugging and water-stopping material 6, and the plugging and water-stopping material 6 can be supplemented into the storage chamber 105 through the supplementary pipe 104. Combined with Figure 1 As shown in the figure, the space between the inner wall of the cylindrical pipe section 102 and the outer wall of the cutter head 5 or the jacking pipe is the compaction chamber 106.
[0039] It should be noted that the plugging and water-stopping material 6 is configured as expansive soil and can also be mixed with straw scraps, and then mixed and filled into the storage chamber 105 together.
[0040] The working principle of the jacking pipe hole water-stopping device of the present utility model is as follows:
[0041] The elastic blocking member 1 forms the first sealing structure, and the water-stop sleeve 1, the baffle 3 and the elastic blocking member 2 form the second sealing structure. During the jacking process of the cutter head 5 or the jacking pipe, the outer wall of the jacking pipe drives the plugging and water-stopping material 6 in the storage chamber 105 to continuously enter the compaction chamber 106. The plugging and water-stopping material 6 in the compaction chamber 106 continuously increases, and then the plugging and water-stopping material 6 is continuously compacted to block the entry of silty sand, mud or groundwater.
[0042] Embodiment 2
[0043] This embodiment provides a jacking machine, which adopts the jacking pipe hole water-stopping device in Embodiment 1, and also includes a cutter head 5, a jacking device, a jacking pipe, etc. During use, during the process of the cutter head 5 passing through the water-stop sleeve 1, it drives the plugging and water-stopping material 6 in the storage chamber 105 to continuously enter the compaction chamber 106, and then the plugging and water-stopping material 6 is continuously compacted to block the entry of silty sand, mud or groundwater. Moreover, the elastic blocking member 1 can also block the entry of silty sand, mud or groundwater into the construction well, and the double sealing has a good sealing effect.
[0044] In summary, the present utility model provides a water-stop device for the opening of a pipe jacking machine, which includes a water-stop sleeve 1 installed at the opening. The water-stop sleeve 1 includes a trumpet pipe section 101 located on the outside and a cylindrical pipe section 102 located on the inside. The reduced end of the trumpet pipe section 101 is butted against one end of the cylindrical pipe section 102. An elastic blocking member one 2 for abutting against the outer wall of the pipe jacking is provided at the other end of the cylindrical pipe section 102. A baffle 3 is provided at the open end of the trumpet pipe section 101, and an elastic blocking member two 4 for abutting against the outer wall of the pipe jacking is provided on the baffle 3. A storage chamber 105 is provided between the inner wall of the trumpet pipe section 101 and the outer wall of the pipe jacking. A compaction chamber 106 is provided between the inner wall of the cylindrical pipe section 102 and the outer wall of the pipe jacking. A sealing and water-stop material 6 that is carried into the compaction chamber 106 by the pipe jacking being jacked in and continuously compacted is filled in the storage chamber 105. An anti-movement member 7 inserted into the soil body is provided on the outer wall of the water-stop sleeve 1. The anti-movement member 7 includes a longitudinal plate 701 and a transverse plate 702. A connecting flange 103 is provided at the end of the cylindrical pipe section 102. The elastic blocking member one 2 is provided with a fixing ring 201, and the fixing ring 201 is fixedly connected to the connecting flange 103. A sealing ring is provided between the fixing ring 201 and the connecting flange 103. The fixing ring 201 and the connecting flange 103 are connected by screws 8. A supplementary pipe 104 is provided at the top of the trumpet pipe section 101. The elastic blocking member one 2 is configured as an annular rubber sheet, and the elastic blocking member two 4 is configured as an annular airbag. The sealing and water-stop material 6 is configured as expansive soil. The present utility model also provides a pipe jacking machine, which includes the water-stop device for the opening of the pipe jacking machine and further includes a cutter head 5 passing through the water-stop sleeve 1. Therefore, the water-stop device for the opening of the pipe jacking machine and the pipe jacking machine provided by the present utility model have the advantages of good sealing effect and avoiding the inflow of silty sand, slurry or groundwater into the construction well.
[0045] The specific embodiments described above have further elaborated on the purpose, technical solutions and beneficial effects of the present utility model. It should be understood that the above description is only for the specific embodiments of the present utility model and is not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A water-stopping device for a pipe jacking machine hole, characterized in that: The invention comprises a water-stopping sleeve (1) installed in a hole, wherein the water-stopping sleeve (1) comprises a trumpet tube section (101) located on the outside and a cylindrical tube section (102) located on the inside, wherein the constricted end of the trumpet tube section (101) is butted against one end of the cylindrical tube section (102), the other end of the cylindrical tube section (102) is provided with an elastic blocking member (2) abutting against the outer wall of the top tube, and the open end of the trumpet tube section (101) is provided with a baffle ( 3), the baffle (3) is provided with an elastic blocking member (4) abutting against the outer wall of the top pipe, a storage chamber (105) is provided between the inner wall of the trumpet pipe section (101) and the outer wall of the top pipe, and a compaction chamber (106) is provided between the inner wall of the cylindrical pipe section (102) and the outer wall of the top pipe, and the storage chamber (105) is filled with a sealing water-stopping material (6) which is continuously compacted by the top pipe being pushed into the compaction chamber (106).
2. The water-stopping device for the pipe jacking machine hole according to claim 1 is characterized in that: The outer wall of the water-stop sleeve (1) is provided with an anti-movement member (7) inserted into the soil.
3. The water-stopping device for the opening of a pipe jacking machine according to claim 2, characterized in that: The anti-movement member (7) comprises a longitudinal plate (701) and a transverse plate (702).
4. The water-stopping device for the opening of a pipe jacking machine according to claim 1, characterized in that: The end of the cylindrical tube section (102) is provided with a connecting flange (103), and the elastic blocking member (2) is provided with a fixing ring (201), and the fixing ring (201) is fixedly connected to the connecting flange (103).
5. The water-stopping device for the opening of a pipe jacking machine according to claim 4, characterized in that: A sealing ring is provided between the fixing ring (201) and the connecting flange (103).
6. The water-stopping device for the opening of a pipe jacking machine according to claim 4, characterized in that: The fixing ring (201) and the connecting flange (103) are connected by means of screws (8).
7. The water-stopping device for the opening of a pipe jacking machine according to claim 1, characterized in that: A supplementary pipe (104) is provided on the top of the trumpet pipe section (101).
8. The water-stopping device for the opening of a pipe jacking machine according to claim 1, characterized in that: The elastic blocking member 1 (2) is configured as an annular rubber sheet, and the elastic blocking member 2 (4) is configured as an annular airbag.
9. The water-stopping device for the opening of a pipe jacking machine according to claim 1, characterized in that: The sealing and water-stopping material (6) is configured as expansive soil.
10. A pipe jacking machine, characterized in that: It comprises the water-stopping device for the opening of a pipe jacking machine as claimed in any one of claims 1 to 9, and also comprises a cutter head (5) passing through the water-stopping sleeve (1).