Immersed tube well suitable for ultra-deep stratum pipe jacking

Abstract

The utility model belongs to the technical field of prevention and control of mud outburst and sand inrush disasters, and particularly relates to an immersed tube well suitable for an ultra-deep stratum pipe jacking, which comprises a pipe jacking, a conduit well and an inspection well, the conduit well is sleeved on the periphery of the inspection well, the pipe jacking is vertically intersected with the inspection well, and the upper half part of the pipe jacking at the intersection position of the pipe jacking and the inspection well is removed. The jacking pipe is communicated with the inspection well; grouting rods are arranged on the periphery of the conduit well and used for grouting soil on the periphery of the conduit well; the immersed tube well further comprises a concrete foundation, the concrete foundation semi-surrounds the lower half portion of the intersection position of the top tube and the inspection well, and the inspection well is located above the concrete foundation. The whole immersed tube well has better stability; and when the inspection well is put down, the inspection well can slide down along the inner wall of the immersed tube well, so that the construction difficulty of the inspection well is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to a submerged tube inspection well, in particular to a submerged tube well suitable for super-deep stratum jacking pipes. Background Art

[0002] At present, demolition is the main influencing factor for most municipal projects, which greatly restricts the construction progress and original planning. In order to reduce the constraints brought by other structures on the ground and demolition, the construction of caissons and underground pipe jacking meets the above requirements. However, the cost of a single receiving well and a working well is too high, so after the construction of the receiving well, the working well and the pipe jacking is completed, a pipe caisson is set between the working well and the receiving well. In the prior art, when the pipe jacking is in an ultra-deep formation and the formation is relatively soft, the pipe caisson cannot get good stable support in the soft formation, which is not conducive to the stability of the pipe caisson structure.

[0003] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0004] The purpose of the utility model is to provide a pipe-sinking well suitable for pipe jacking in ultra-deep formations, so as to at least solve the above-mentioned problems existing in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A pipe-sinking well suitable for pipe-sinking in ultra-deep formations, the pipe-sinking well comprising: a pipe-sinking well, a guide tube well and an inspection well, the guide tube well being sleeved on the periphery of the inspection well, the pipe-sinking well intersecting vertically with the inspection well, and the upper half of the pipe-sinking well at the intersection of the pipe-sinking well and the inspection well being removed, so that the pipe-sinking well and the inspection well are interconnected;

[0007] A grouting rod is arranged at the periphery of the catheter well, and the grouting rod is used for grouting the soil at the periphery of the catheter well;

[0008] The caisson shaft also includes a concrete foundation, which semi-encloses the lower half of the intersection of the top pipe and the inspection well, and the inspection well is located above the concrete foundation.

[0009] As described above, the immersed pipe well suitable for jacking pipes in ultra-deep formations, preferably, a plurality of perforations are arranged on the wall of the guide pipe well, and the grouting rods extend from the perforations of the guide pipe well into the surrounding soil body to perform grouting.

[0010] As described above, the immersed pipe well suitable for jacking pipes in ultra-deep formations, preferably, a plurality of vertical grooves are arranged on the inner wall of the guide pipe well, and concrete is poured into the vertical grooves after the inspection well is installed in the guide pipe well.

[0011] As described above, in the immersed pipe well suitable for jacking pipes in ultra-deep formations, preferably, a plurality of annular grooves are arranged on the inner wall of the guide pipe well, and the annular grooves are interconnected with the vertical grooves.

[0012] As described above, in the immersed tube well suitable for jacking pipes in ultra-deep formations, preferably, the concrete foundation is located inside the caisson well.

[0013] As described above, for the immersed tube well suitable for jacking pipes in ultra-deep formations, preferably, a stepped annular groove is provided on the periphery of the top of the concrete foundation, and the inspection well is located in the stepped annular groove of the concrete foundation.

[0014] As described above, in the immersed tube well suitable for jacking pipes in ultra-deep formations, preferably, a cover plate is provided on the top of the inspection well.

[0015] As described above, the immersed pipe well suitable for jacking pipes in ultra-deep formations, preferably, a manhole is arranged above the cover plate, the diameter of the manhole is smaller than the inspection well, and a perforation is arranged at the intersection of the cover plate and the manhole to connect the manhole and the inspection well.

[0016] Beneficial effects:

[0017] In the pipe-in-the-wall well, a guide tube well is arranged at the periphery of the inspection well, and grouting rods are arranged at the periphery of the guide tube well. Grouting is injected into the soil through the grouting rods, so that the soil at the periphery of the pipe-in-the-wall well is consolidated into a whole, and the grouting rods anchor the guide tube well in the consolidated soil, so that the entire pipe-in-the-wall well has better stability; and when the inspection well is lowered, it can be guided to slide down along the inner wall of the pipe-in-the-wall well, which greatly reduces the construction difficulty of the inspection well.

[0018] All vertical grooves can be interconnected through the annular groove, thereby connecting the concrete poured in the vertical grooves as a whole, increasing the contact area between the concrete and the inspection well, and ensuring a higher connection strength between the duct well and the inspection well. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0020] Figure 1 This is a cross-sectional view of an axial direction of a pipe jacking well of an embodiment of the utility model;

[0021] Figure 2 The utility model is an axial cross-sectional view of a vertical jacking pipe of a submerged pipe well according to an embodiment of the utility model.

[0022] In the figure: 1. Guide well; 2. Grouting rod; 3. Inspection well; 4. Jacking pipe; 5. Concrete foundation; 6. Vertical groove; 7. Annular groove; 8. Cover plate; 9. Manhole casing. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the present invention.

[0024] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connection" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0026] According to the specific embodiment of the utility model, Figure 1-2 As shown, the utility model provides a pipe-immersed well suitable for pipe jacking in ultra-deep formations, the pipe-immersed well comprising: a pipe jacking 4, a guide tube well 1 and an inspection well 3, the guide tube well 1 is sleeved on the periphery of the inspection well 3, the pipe jacking 4 and the inspection well 3 are vertically intersected, and the upper half of the pipe jacking 4 at the intersection of the pipe jacking 4 and the inspection well 3 is removed to make the pipe jacking 4 and the inspection well 3 connected to each other.

[0027] A grouting rod 2 is arranged outside the catheter well 1 , and the grouting rod 2 is used for grouting into the soil outside the catheter well 1 .

[0028] The caisson shaft further includes a concrete foundation 5 , which half surrounds the lower half of the intersection of the top pipe 4 and the inspection shaft 3 , and the inspection shaft 3 is located above the concrete foundation 5 .

[0029] In the pipe-caisson, a guide tube well 1 is arranged on the periphery of the inspection well 3, and a grouting rod 2 is arranged on the periphery of the guide tube well 1. Grouting is injected into the soil through the grouting rod 2, so that the soil on the periphery of the pipe-caisson is consolidated into a whole, and the grouting rod 2 anchors the guide tube well 1 in the consolidated soil, so that the entire pipe-caisson has better stability; and when the inspection well 3 is lowered, it can be guided to slide down along the inner wall of the pipe-caisson, which greatly reduces the construction difficulty of the inspection well 3.

[0030] A plurality of perforations are arranged on the wall of the catheter well 1, and a grouting rod 2 extends from the perforations of the catheter well 1 into the surrounding soil to perform grouting.

[0031] In one embodiment of the present application, a perforation is provided on the wall of the catheter well 1 to facilitate the grouting rod 2 to extend into the surrounding soil, and an inspection well 3 is provided inside the catheter well 1 so that the inspection well 3 and the grouting rod 2 will not interfere with each other, thereby ensuring the integrity of the inspection well 3.

[0032] A plurality of vertical grooves 6 are arranged on the inner wall of the catheter shaft 1 . After the inspection well 3 is installed in the catheter shaft 1 , concrete is poured into the vertical grooves 6 .

[0033] In one embodiment of the present application, a vertical groove 6 is provided on the inner wall of the duct shaft 1 and concrete is poured, which can not only seal the gap between the inspection shaft 3 and the duct shaft 1, but also connect the duct shaft 1 and the inspection shaft 3 as a whole, thereby ensuring the overall stability of the immersed tube shaft.

[0034] A plurality of annular grooves 7 are provided on the inner wall of the catheter well 1 , and the annular grooves 7 are communicated with the vertical grooves 6 .

[0035] In one embodiment of the present application, all vertical grooves 6 can be interconnected through the annular groove 7, thereby connecting the concrete poured in the vertical grooves 6 as a whole, increasing the contact area between the concrete and the inspection well 3, thereby ensuring a higher connection strength between the duct well 1 and the inspection well 3.

[0036] The concrete foundation 5 is located inside the conduit shaft 1. In one embodiment of the present application, the conduit shaft 1 can be used as a peripheral template of the concrete foundation 5, which is more convenient for the pouring construction of the concrete foundation 5.

[0037] A stepped annular groove 7 is provided on the top periphery of the concrete foundation 5 , and the inspection well 3 is located in the stepped annular groove 7 of the concrete foundation 5 .

[0038] In one embodiment of the present application, the stepped annular groove 7 on the top of the concrete foundation 5 makes it easier to position and install the inspection well 3.

[0039] A cover plate 8 is provided on the top of the inspection well 3. In one embodiment of the present application, the cover plate 8 of the inspection well 3 covers the top opening of the inspection well 3, which can prevent debris from entering the inspection well 3.

[0040] A manhole guard 9 is arranged above the cover plate 8, and the diameter of the manhole guard 9 is smaller than the inspection well 3. A perforation is arranged at the intersection of the cover plate 8 and the manhole guard 9, so that the manhole guard 9 and the inspection well 3 are interconnected. Through the manhole guard 9, it is more convenient to go down into the inspection well 3.

[0041] During the construction of the caisson shaft, the jacking pipe is first pushed into the ultra-deep stratum, then the ground above the jacking pipe is cleaned and the central axis of the jacking pipe is located.

[0042] Then start sinking the guide pipe, while excavating the inside of the guide pipe, until the guide pipe sinks into place.

[0043] Then, a grouting rod is driven into the outer soil from the inside of the guide tube, and grouting operation is performed on the outer soil.

[0044] At the same time, concrete foundation construction can be carried out outside the jacking pipe, and the upper part of the jacking pipe in the concrete foundation can be broken.

[0045] Then lower the inspection well into the duct shaft and onto the concrete foundation.

[0046] After the inspection well is lowered into place, concrete is poured into the vertical groove of the duct well to seal the gap between the inspection well and the duct well and to solidify the inspection well and the duct well into one.

[0047] Finally, put a cover plate on the inspection well, fill the outer edge of the cover plate with concrete to seal it, and build a manhole on top of the cover plate.

[0048] It should be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A submerged well suitable for jacking pipes in ultra-deep formations, characterized in that: The pipe sinking well comprises: a top pipe, a guide tube well and an inspection well, wherein the guide tube well is sleeved on the periphery of the inspection well, the top pipe intersects the inspection well vertically, and the upper half of the top pipe at the intersection of the top pipe and the inspection well is removed so that the top pipe and the inspection well are connected to each other; A grouting rod is arranged at the periphery of the catheter well, and the grouting rod is used for grouting into the soil at the periphery of the catheter well; The caisson shaft also includes a concrete foundation, which semi-encloses the lower half of the intersection of the top pipe and the inspection well, and the inspection well is located above the concrete foundation.

2. The immersed tube well suitable for jacking pipe in ultra-deep formations according to claim 1, characterized in that: A plurality of perforations are arranged on the wall of the catheter well, and the grouting rod extends from the perforations of the catheter well into the surrounding soil body to perform grouting.

3. The immersed tube well suitable for jacking pipe in ultra-deep formations according to claim 2, characterized in that: A plurality of vertical grooves are arranged on the inner wall of the conduit well. After the inspection well is installed in the conduit well, concrete is poured into the vertical grooves.

4. The immersed tube well suitable for jacking pipe in ultra-deep formations according to claim 3, characterized in that: A plurality of annular grooves are arranged on the inner wall of the catheter well, and the annular grooves are communicated with the vertical grooves.

5. The immersed tube well suitable for jacking pipe in ultra-deep formations according to claim 2, characterized in that: The concrete foundation is located inside the conduit shaft.

6. The immersed tube well suitable for jacking pipe in ultra-deep formations according to claim 5, characterized in that: A stepped annular groove is arranged on the periphery of the top of the concrete foundation, and the inspection well is located in the stepped annular groove of the concrete foundation.

7. The immersed tube well suitable for jacking pipe in ultra-deep formations according to claim 1, characterized in that: A cover plate is arranged on the top of the inspection well.

8. The immersed tube well suitable for jacking pipe in ultra-deep formations according to claim 7, characterized in that: A manhole guard is arranged above the cover plate, the diameter of the manhole guard is smaller than the inspection well, and a perforation is arranged at the intersection of the cover plate and the manhole guard so that the manhole guard and the inspection well are connected to each other.

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