Prefabricated sewage well installation method

Abstract

The application discloses an installation method of an assembled sewage intercepting well, which comprises the following steps: S100, excavating a foundation pit and arranging a hardened cushion layer on the foundation pit; S200, hoisting a base of the assembled sewage intercepting well to the hardened cushion layer to be fixed; S300, inserting a well shaft into a positioning groove of the base; S400, wrapping a steel wire mesh at an interface position between the well shaft and the base, and then sealing and processing by using waterproof concrete; and S500, performing a closed water test, and sealing and completing the position with leakage. The assembled sewage intercepting well in the installation method of the assembled sewage intercepting well is designed in a split type, can be processed into a structure with a larger size, meets the requirement of a larger volume of the sewage intercepting well, improves sewage treatment capacity, improves applicability, and can quickly assemble the well shaft and the base in place through assembling and positioning of the well shaft by the positioning groove in the process of assembling the well shaft, so that construction difficulty is effectively reduced, a construction period is shortened, and assembling precision is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intercepting well, in particular, to an installation method of assembled intercepting well. BACKGROUND

[0002] At present, in the urban pollution control project, the problem of intercepting combined sewer and collecting initial rainwater is inevitably faced. Specifically, during rainfall, part of the garbage and pollutants will enter the urban municipal or drainage pipeline with the rainwater, and the end of the pipeline often leads to the urban river system. A large amount of pollutants entering the receiving water body will cause changes in the physical and chemical and microbial properties of the water body, and even cause the water body to be deteriorated, which has become the dominant factor affecting water quality today. Therefore, intercepting wells need to be set to separate and treat domestic sewage and rainwater. Intercepting wells can be divided into road intercepting wells, channel intercepting wells and the like according to the use scene. With the advancement of urbanization, the demand for sewage treatment increases, and the size of the intercepting well also becomes larger and larger.

[0003] There are mainly two construction methods for the construction of traditional intercepting wells. The first is to pile, pour and install on the construction site, and the second is to manufacture integrally in the factory. The first construction method includes the steps of on-site masonry, pouring and installing the whole well body, and installing equipment, which has high technical requirements for construction personnel, many construction constraints, and makes it difficult to guarantee the size accuracy of the well body, thereby affecting the accuracy of the subsequent equipment assembly size, affecting the application effect, and requiring professional technical personnel in the factory to guide the construction, which causes long construction time, complex on-site management, increases the construction cost, and the long construction period also affects the traffic and residents' life. The second construction method is to process an integrated intercepting well in the factory in advance, for example, the molded one-time forming glass steel intercepting well provided in Chinese utility model patent CN218374318U, the well body of which is formed by the molded one-time forming method. Although this method is convenient to install and has a short construction period, its application range is small and is only suitable for small pipe diameters. For complex working conditions, large pipe diameters, open channels and underground channels, the overall size of the intercepting well to be configured is large, and an integrated structure cannot be adopted. SUMMARY

[0004] The present application provides an installation method of assembled intercepting well to solve the technical problems of inconvenient installation of existing intercepting wells, inability to meet large size requirements, and poor applicability.

[0005] An installation method of assembled intercepting well is used for installing an assembled intercepting well, the assembled intercepting well includes a base and a well shaft, the base includes a well chamber in a cylindrical structure and a positioning ring provided on the outer periphery of the well chamber, the positioning ring extends upward and protrudes from the top end of the well chamber, so as to form a positioning groove at the top end of the well chamber by the positioning ring, and the installation method of the assembled intercepting well includes the following steps:

[0006] S100: excavate a foundation pit and set a hardening cushion layer on the foundation pit;

[0007] S200: hoist the base of the fabricated intercepting well to the hardening cushion layer for installation and fixation;

[0008] S300: insert the well shaft into the positioning groove of the base;

[0009] S400: wrap a steel mesh sheet at the interface position between the well shaft and the base, and then seal the interface position by using waterproof concrete;

[0010] S500: perform a closed water test and seal and complete the position with leakage.

[0011] Preferably, the top end of the well chamber is provided with a first arc-shaped groove, the bottom end of the well shaft is provided with a second arc-shaped groove, the second arc-shaped groove is used to jointly enclose the first arc-shaped groove to form a first pipeline hole, and a positioning mark is pre-set in the second arc-shaped groove, and step S300 specifically comprises:

[0012] S301: install a laser emitter on the first arc-shaped groove and emit laser light in a vertical direction upward through the laser emitter;

[0013] S302: hoist the well shaft above the base, adjust the position of the well shaft so that the laser light emitted by the laser emitter is aligned with the positioning mark in the second arc-shaped groove;

[0014] S303: vertically lower the well shaft and insert the well shaft into the positioning groove of the base.

[0015] Preferably, the first arc-shaped groove comprises a first groove wall and a second groove wall arranged in sequence in an axial direction, and the second groove wall is arranged on a side of the first groove wall facing the inner cavity of the well chamber, and step S300 specifically comprises:

[0016] S301: embed a first water pipe in the first groove wall, then install a laser emitter on the second groove wall, and emit laser light in a vertical direction upward through the laser emitter;

[0017] S302: hoist the well shaft above the base, adjust the position of the well shaft so that the laser light emitted by the laser emitter is aligned with the positioning mark in the second arc-shaped groove;

[0018] S303: vertically lower the well shaft, insert the well shaft into the positioning groove of the base, and make the second arc-shaped groove of the well shaft clamped with the first water pipe;

[0019] S304: remove the laser emitter and completely top the first water pipe into the first pipeline hole.

[0020] Preferably, before step S301, further comprising: applying waterproof paint or wrapping polyester non-woven fabric at the interface position of the first water pipe;

[0021] After step S304, further comprising: reinforcing and sealing the gap between the first water pipe and the first pipe hole with waterproof mortar.

[0022] Preferably, the caliber of the second slot wall is larger than that of the first slot wall, so as to form a receiving cavity for filling waterproof mortar between the second slot wall and the first water pipe.

[0023] Preferably, before step S300, further comprising:

[0024] The positioning slot is cleaned, and a sealing rubber strip for elastically abutting the well shaft is arranged on the bottom wall and / or side wall of the positioning slot.

[0025] Preferably, step S100 specifically comprises:

[0026] S101: The first water pipe to be divided is blocked and dredged, and after confirming that there is no flowing water in the first water pipe, the first water pipe at the position to be divided is cut and broken;

[0027] S102: After excavating a foundation pit to the replacement layer at the cut and broken position of the first water pipe, the soil base is replaced and compacted, the concrete cushion is constructed after compaction, and the concrete cushion is then cured and hardened to obtain a hardened cushion.

[0028] Preferably, step S200 specifically comprises:

[0029] S201: The installation position of the base on the hardened cushion is determined by measuring the position of the first water pipe and the actual position of the first water pipe.

[0030] S202: The base of the assembled sewage interception well is hoisted to the determined installation position for installation and fixation.

[0031] Preferably, a second pipe hole is formed in the well chamber, the base further comprises an adjusting assembly arranged in the inner cavity of the well chamber, and the adjusting assembly comprises a gate slot and a flow limiting baffle embedded in the gate slot.

[0032] After step S300, further comprising:

[0033] The second water pipe is connected to the second pipe hole, according to the flow demand of the second water pipe, the flow limiting baffle is driven to slide relative to the gate slot to adjust the shielding area of the flow limiting baffle to the second pipe hole, so as to adjust the exposed area of the second pipe hole, and finally the flow limiting baffle is fixed relative to the gate slot.

[0034] Preferably, the prefabricated sewage interception well further comprises a well cylinder cover plate, a connecting cylinder and a well cover, the well cylinder cover plate is provided with a connecting hole;

[0035] After step S500, further comprising:

[0036] S600: A layer of waterproof cement mortar is first laid on the bottom of the well cylinder cover plate, then the well cylinder cover plate is covered on the top end of the well cylinder, waterproof cement mortar is used to embed and form a convex joint at the gap between the well cylinder cover plate and the well cylinder, and finally waterproof cement mortar is used to perform a three-cornered mortar treatment on the periphery of the well cylinder cover plate;

[0037] S700: The connecting cylinder is hoisted to the well cylinder cover plate and the center through hole of the connecting cylinder is aligned with the connecting hole of the well cylinder cover plate, then waterproof cement mortar is used to perform a three-cornered mortar treatment at the gap between the connecting cylinder and the well cylinder cover plate;

[0038] S800: The well cover is covered on the top opening of the connecting cylinder.

[0039] The prefabricated sewage interception well installation method has the following beneficial effects:

[0040] The prefabricated sewage interception well installation method provided by the application comprises a base and a well cylinder, that is, the base and the well cylinder are designed in a split type, are respectively processed and formed, can be processed into a larger size structure compared with an integrated design, meet the requirement of a larger volume of the sewage interception well, improve the sewage treatment capacity and applicability, and can quickly assemble the well cylinder and the base in place through the positioning groove formed by the positioning ring and the top end of the well chamber, effectively reduce the construction difficulty, shorten the construction period, and improve the assembly precision. In addition, the steel wire mesh is wrapped at the interface position between the well cylinder and the base, and then the waterproof concrete is used for sealing treatment, which effectively improves the connection strength, airtightness and waterproofness of the joint between the base and the well cylinder, and avoids leakage.

[0041] In addition to the purposes, features and advantages described above, the application has other purposes, features and advantages. The application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0042] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated herein for explanation by reference. In the drawings:

[0043] Figure 1 The step diagram of the prefabricated sewage interception well installation method provided by the embodiment of the application;

[0044] Figure 2 For Figure 1An assembly structure diagram of the assembled intercepting well in the assembly method of the assembled intercepting well is shown.

[0045] Figure 3 As Figure 2 An exploded view of the assembled intercepting well is shown.

[0046] Figure 4 As Figure 2 A sectional view of the assembled intercepting well is shown.

[0047] Figure 5 As Figure 3 A perspective view of the base along another angle is shown.

[0048] Figure 6 As Figure 3 An assembly structure diagram of the well shaft and the well shaft cover plate, the connecting cylinder and the well cover is shown.

[0049] Legend:

[0050] 1, assembled intercepting well; 11, base; 111, well chamber; 1111, first arc-shaped groove; 1112, second pipeline hole; 112, positioning ring; 1121, avoiding notch; 113, positioning groove; 114, adjusting assembly; 1141, gate groove; 1142, flow limiting baffle; 115, fixed base; 12, well shaft; 121, second arc-shaped groove; 13, crawling ladder; 14, well shaft cover plate; 141, connecting hole; 15, connecting cylinder; 16, well cover; 2, water inlet pipe; 3, rainwater and sewage pipe; 4, domestic sewage pipe. DETAILED DESCRIPTION

[0051] The embodiments of the present application will be described in detail below with reference to the accompanying drawings, but the present application can be implemented in various different ways as defined and covered below.

[0052] Figures 1 to 6 The assembly method of the assembled intercepting well provided by the embodiments of the present application is shown, which is used for installing the assembled intercepting well, the assembled intercepting well adopts a split design, has a simple structure and is convenient and fast to assemble, can simplify construction steps, reduce construction difficulty, and ensure accurate positioning, and has strong applicability.

[0053] Please combine Figure 2 and Figure 3The assembled sewage intercepting well 1 comprises a base 11 and a well shaft 12 used for interfacing with the top end of the base 11. Specifically, the base 11 comprises a well chamber 111 in a cylindrical structure and a positioning ring 112 provided on the outer peripheral wall of the well chamber 111, which extends upwardly in the direction towards the well shaft 12 and protrudes from the top end of the well chamber 111, so as to form a positioning groove 113 at the top end of the well chamber 111 by the positioning ring 112, and the bottom end of the well shaft 12 is adapted to the positioning groove 111.

[0054] As shown in Figure 1 , the assembled sewage intercepting well installation method comprises the following steps:

[0055] Step S100: excavate a foundation pit and set a hardened cushion layer on the foundation pit;

[0056] Step S200: hoist the base 11 of the assembled sewage intercepting well 1 to the hardened cushion layer for installation and fixation;

[0057] Step S300: insert the well shaft 12 into the positioning groove 113 of the base 11;

[0058] Step S400: wrap a steel wire mesh at the interface position between the well shaft 12 and the base 11, and then seal and treat with waterproof concrete;

[0059] Step S500: perform a closed water test and seal and complete the position with leakage.

[0060] It can be understood that, since the assembled sewage intercepting well 1 in the assembled sewage intercepting well installation method comprises a base 11 and a well shaft 12, i.e. the base 11 and the well shaft 12 are designed in a split type, and are respectively processed and formed, compared with an integrated design, the structure can be processed to a larger size, meets the requirement of larger volume of the sewage intercepting well, is not limited by the site, is fast and efficient in construction, improves the sewage treatment capacity, improves the applicability, and since the base 11 forms a positioning groove 113 at the top end of the well chamber 111 through the positioning ring 112, and the well shaft 12 is assembled and positioned through the positioning groove 113, the well shaft 12 and the base 11 can be quickly assembled in place, the construction difficulty is effectively reduced, the construction period is shortened, and the assembly precision is improved. Secondly, the steel wire mesh is wrapped at the interface position between the well shaft 12 and the base 11, and then sealed and treated with waterproof concrete, which effectively improves the connection strength, the airtightness and the waterproofness of the joint between the base 11 and the well shaft 12, avoids leakage, finally, the waterproof effect is checked through the closed water test, and the position with leakage is sealed and completed, so as to completely seal the joint and improve the airtightness through multiple waterproof treatments.

[0061] In Figure 4As shown in FIG. 1, the outer side (the side away from the well chamber 111) of the positioning ring 112 is provided with an arc-shaped transition surface extending from the top surface outer edge of the positioning ring 112 to the outer peripheral wall of the well chamber 111 in the upward direction, so as to avoid the lower edge of the positioning ring 112 scratching the side wall of the foundation pit when the base 11 is hoisted as a whole into the foundation pit, and also to guide and position the base 11 during the process of lowering the base 11, thereby ensuring the centering installation of the base 11 and ensuring smooth installation and improving installation accuracy.

[0062] Please refer to Figure 2 and Figure 3 , the top end of the well chamber 111 is provided with a first arc-shaped groove 1111, and the bottom end of the well shaft 12 is provided with a second arc-shaped groove 121, which is used to form a first pipeline hole together with the first arc-shaped groove 1111 after the well shaft 12 is butted against the base 11, and the first pipeline hole is used to access a first water pipe, which is the water inlet pipe 2 or the rainwater and sewage pipe 3. By jointly enclosing the first pipeline hole through the first arc-shaped groove 1111 on the well chamber 111 and the second arc-shaped groove 121 on the well shaft 12, it is not only more convenient to open the hole, meet the requirements of opening hole accuracy and larger hole diameter, but also the first arc-shaped groove 1111 and the second arc-shaped groove 121 before assembly are open structures, and sealing and waterproof structures can be directly arranged on the first arc-shaped groove 1111, the second arc-shaped groove 121 or the corresponding first water pipe during construction, and the first water pipe can be accurately clamped in place, improving assembly accuracy and enhancing sealing and waterproof effect.

[0063] Preferably, the second arc-shaped groove 121 is pre-provided with a positioning mark for laser positioning, which can be a positioning bump, a positioning groove or a positioning sticker with marking function, etc. Step S300 specifically includes:

[0064] Step S301: installing a laser emitter on the first arc-shaped groove 1111 and emitting laser upward in the vertical direction through the laser emitter;

[0065] Step S302: hoisting the well shaft 12 above the base 11 and adjusting the position of the well shaft 12 so that the laser emitted by the laser emitter is aligned with the positioning mark in the second arc-shaped groove 121;

[0066] Step S303: vertically lowering the well shaft 12 and inserting the well shaft 12 into the positioning groove 113 of the base 11.

[0067] When assembling the well shaft 12, the laser emitter is installed on the first arc-shaped slot 1111, the laser emitter is used to emit laser light in the vertical direction upward, then the position of the well shaft 12 is adjusted and the laser emitted by the laser emitter is aligned with the positioning mark, so that it is confirmed that the well shaft 12 is completely aligned with the base 11, and the second arc-shaped slot 121 is completely opposite to the first arc-shaped slot 1111, at this time, the well shaft 12 is vertically lowered to accurately insert the well shaft 12 into the positioning slot 113 of the base 11, and the second arc-shaped slot 121 is accurately matched with the first arc-shaped slot 1111, which effectively improves the positioning accuracy and positioning speed, simplifies the construction steps, and ensures the assembly accuracy.

[0068] Further, the first arc-shaped slot 1111 is provided with a mounting clamping position for installing a laser emitter, the laser emitter is positioned and fixed through the mounting clamping position, the accuracy of the installation position of the laser emitter is ensured, the laser emitter can accurately emit laser light along the preset position and direction, and the positioning effect is improved.

[0069] In the embodiment, the mounting clamping position is arranged at the lowest point of the first arc-shaped slot 1111, and the positioning mark is arranged at the lowest point of the second arc-shaped slot 121. Since the base 11 is installed in place before the well shaft 12 is assembled, that is, the base 11 is fixed in the vertical direction and the first arc-shaped slot 1111 remains stationary, the laser emitter can stably emit laser light upward in the vertical direction when the laser emitter is installed on the mounting clamping position of the first arc-shaped slot 1111, the accuracy of the positioning reference is ensured, then the position of the well shaft 12 is adjusted and the laser emitted by the laser emitter is aligned with the positioning mark, so that the positioning work of the well shaft 12 is accurately completed, and the positioning effect is better.

[0070] It should be understood that in other embodiments, the installation clamping position can also be arranged in the second arc-shaped groove 121, the positioning mark is arranged in the first arc-shaped groove 1111, and the installation and positioning of the well shaft 12 relative to the base 11 can also be achieved by arranging a laser emitter on the well shaft 12 to emit laser light towards the positioning mark on the base 11. Even the installation clamping position and the positioning mark can be arranged in the first arc-shaped groove 1111 at the same time, and correspondingly, the installation clamping position and the positioning mark are also arranged in the second arc-shaped groove 121 at the same time. In the construction process, the installation position of the laser emitter can be flexibly adjusted according to the site conditions, the operation habits of the construction personnel and other factors. The laser emitter can be arranged in the first arc-shaped groove 1111 alone, or in the second arc-shaped groove 121 alone, or in both the first arc-shaped groove 1111 and the second arc-shaped groove 121, to meet different construction needs.

[0071] More preferably, the first arc-shaped groove 1111 comprises a first groove wall and a second groove wall arranged in sequence along the axial direction, the second groove wall is arranged on the side of the first groove wall facing the inner cavity of the well chamber 111, the caliber of the first groove wall is matched with the first water pipe, and the caliber of the second groove wall is equal to or greater than the caliber of the first groove wall. The step S300 specifically comprises:

[0072] Step S301: embedding the first water pipe in the first groove wall, then installing a laser emitter on the second groove wall, and emitting laser light in the vertical direction upwards through the laser emitter;

[0073] Step S302: hoisting the well shaft 12 to the upper side of the base 11, adjusting the position of the well shaft 12 so that the laser light emitted by the laser emitter is aligned with the positioning mark in the second arc-shaped groove 121;

[0074] Step S303: vertically lowering the well shaft 12, inserting the well shaft 12 into the positioning groove 113 of the base 11, and making the second arc-shaped groove 121 of the well shaft 12 clamped with the first water pipe;

[0075] Step S304: removing the laser emitter, and completely inserting the first water pipe into the first pipe hole.

[0076] The slot wall of the first arc-shaped slot 1111 is divided into two sections along the axial direction, one of which is used as the first slot wall for pre-positioning the first water pipe, and the first water pipe can be clamped on the first slot wall before the wellbore 12 is assembled, so as to ensure the assembly accuracy of the first water pipe, and then the laser emitter is arranged on the second slot wall of the first arc-shaped slot 1111 to complete the installation and positioning of the wellbore 12, and after the wellbore 12 is assembled, the laser emitter is removed, and the first water pipe is completely pushed into the first pipe hole along the first slot wall. Compared with the mode of inserting the first water pipe after the wellbore 12 and the base 11 are assembled, the first pipe hole can be arranged in a state fully adapted to the first water pipe, without blocking the assembly process of the first water pipe due to the too small hole diameter of the first pipe hole, and without affecting the sealing and waterproof effect due to the too large hole diameter of the first pipe hole.

[0077] Preferably, before step S301, it further includes: applying waterproof paint or wrapping polyester non-woven fabric at the interface position of the first water pipe, and specifically, two layers of polyethylene waterproof paint can be applied or one layer of polyester non-woven fabric can be wrapped at the interface position of the first water pipe to complete the waterproof prevention treatment. After step S304, it further includes: using waterproof mortar to reinforce and seal the gap between the first water pipe and the first pipe hole, and specifically, M15 grade waterproof cement mortar can be used to reinforce and seal the gap between the first water pipe and the first pipe hole, and the installation of the first water pipe is completed after the waterproof cement mortar is cured.

[0078] In construction, the first water pipe is pre-positioned by the first slot wall, and waterproof paint is applied or polyester non-woven fabric is wrapped at the interface position of the first water pipe to achieve waterproof prevention treatment, and after the laser emitter is removed and the first water pipe is completely pushed into the first pipe hole, waterproof mortar is used to reinforce and seal the gap between the first water pipe and the first pipe hole, so that the assembly work of the first water pipe and the laser positioning work of the wellbore 12 are cooperated, avoiding the interference of the waterproof process on the assembly and positioning of the wellbore 12, and at the same time, the first water pipe can be subjected to multiple waterproof treatments to ensure the sealing and waterproof effect.

[0079] More preferably, the second slot wall has a larger diameter than the first slot wall to form a receiving cavity between the second slot wall and the first water pipe for filling waterproof mortar, so as to strengthen the sealing and waterproof effect.

[0080] More preferably, the positioning ring 112 is provided with a relief gap 1121 along the extension line of the first pipe hole, and the caliber of the relief gap 1121 is larger than that of the first pipe hole. The first water pipe is conveniently inserted through the relief of the relief gap 1121, and since the caliber of the relief gap 1121 is larger than that of the first pipe hole, a receiving cavity for filling waterproof mortar can also be formed between the relief gap 1121 and the first water pipe, further enhancing the sealing and waterproof effect.

[0081] Preferably, before step S300, the positioning groove 113 is also cleaned, and then a sealing rubber strip is arranged on the bottom wall and / or the side wall of the positioning groove 113 for elastically abutting the well shaft 12.

[0082] First, the positioning groove 113 is cleaned, which can be done by using a high-pressure water gun or an air gun, and if necessary, a grinding device can be used to grind the groove wall of the positioning groove 113 to ensure that the surface of the positioning groove 113 is smooth and free of foreign matter. Then, a sealing rubber strip is embedded in the pre-set clamping groove of the bottom wall and / or the side wall of the positioning groove 113 (i.e. the top end of the well chamber 111 and / or the side wall of the positioning ring 112 facing the positioning groove 113). The installation state of the sealing rubber strip is checked to ensure that the sealing rubber strip is installed smoothly without protruding parts. At the same time, the bottom end of the well shaft 12 is cleaned, and finally the well shaft 12 is inserted into the positioning groove 113, and the sealing rubber strip elastically abuts the well shaft 12, effectively enhancing the sealing and waterproof effect between the well shaft 12 and the base 11.

[0083] Preferably, step S100 specifically includes:

[0084] Step S101: The first water pipe to be divided is blocked and dredged, and after confirming that there is no flowing water in the first water pipe, the first water pipe is cut at the position to be divided;

[0085] Step S102: After excavating a foundation pit to the replacement layer at the cut position of the first water pipe, the soil base is replaced and compacted, the concrete cushion is then laid, and the concrete cushion is then cured and hardened to obtain a hardened cushion.

[0086] Specifically, the first water pipe needing to be branched is first blocked and dredged, and after confirming that there is no flowing water in the first water pipe, the position to be branched of the first water pipe is cut to divide the first water pipe into two sections, one of which is used as the water inlet pipe 2 and the other is used as the rainwater and sewage pipe 3. Then, after excavating a foundation pit to the replacement layer at the cut position of the first water pipe, the soil base is replaced and compacted, a 10 cm C15 concrete cushion is then laid, and the concrete cushion is cured for about 7 days for hardening treatment to obtain a hardened cushion. The construction is directly carried out from the position to be branched of the original water pipe, effectively simplifying the construction steps, improving the applicability, and ensuring the installation strength and stability of the assembled sewage interception well 1, avoiding the deviation of the assembled sewage interception well 1 during use.

[0087] Preferably, step S200 specifically comprises:

[0088] Step S201: determining the installation position of the base 11 on the hardened cushion by measuring the wire and the actual position of the first water pipe;

[0089] Step S202: hoisting and installing the base 11 of the assembled sewage interception well 1 to the determined installation position.

[0090] Combined with the measurement wire technology, the installation position of the base 11 is positioned according to the actual position of the first water pipe, so that the base 11 can accurately fit the first water pipe, and the position of the original water pipe does not need to be changed when installing the assembled sewage interception well 1, thereby avoiding the need to modify the entire pipeline, enabling quick construction and installation, improving construction efficiency, and shortening the construction period.

[0091] Further, the first arc-shaped groove 1111 and the second arc-shaped groove 121 are both provided with two, so as to form two first pipeline holes through one-to-one corresponding splicing of the first arc-shaped groove 1111 and the second arc-shaped groove 121, and the two first pipeline holes are oppositely arranged, one of which is used for connecting with the water inlet pipe 2, and the other is used for connecting with the rainwater and sewage pipe 3.

[0092] Please refer to Figure 3 and Figure 5 Preferably, the well chamber 111 is further provided with a second pipeline hole 1112, and the base 11 further comprises an adjusting assembly 114 arranged in the inner cavity of the well chamber 111, and the adjusting assembly 114 comprises a gate groove 1141 and a flow limiting baffle 1142 embedded in the gate groove 1141.

[0093] After step S300, further comprising: connecting a second water pipe into the second pipe hole 1112, driving the flow-limiting baffle 1142 to slide relative to the gate slot 1141 according to the flow requirement of the second water pipe to adjust the shielding area of the flow-limiting baffle 1142 to the second pipe hole 1112, thereby adjusting the exposed area of the second pipe hole 1112, and finally fixing the flow-limiting baffle 1142 relative to the gate slot 1141.

[0094] Further, the height of the second pipe hole 1112 is lower than that of the first pipe hole, and the aperture of the second pipe hole 1112 is smaller than that of the first pipe hole, and the second water pipe is a domestic sewage pipe 4. In a non-rainy state, only domestic sewage is introduced into the inner cavity of the well chamber 111 by the water inlet pipe 2, and the domestic sewage can be directly discharged along the domestic sewage pipe 4 at a lower position; while in a rainy state, rain sewage is poured into the inner cavity of the well chamber 111 by the water inlet pipe 2, and as the rainfall increases, the water volume in the well chamber 111 also increases, and then the rain sewage with pollutants is discharged from the rain sewage pipe 3 at a higher position, realizing the separate treatment of domestic sewage and rain sewage. Since the flow-limiting baffle 1142 can slide relative to the gate slot 1141 to adjust the exposed area of the second pipe hole 1112, the opening size of the second pipe hole 1112 can be flexibly adjusted according to the actual drainage volume requirement, and the domestic sewage flow of the corresponding area can be adapted, so the applicability is strong.

[0095] Further, one side of the gate slot 1141 is provided with a scale mark along the sliding adjustment direction of the flow-limiting baffle 1142, so as to show the adjustment position of the flow-limiting baffle 1142, and facilitate confirmation of the exposed size of the second pipe hole 1112.

[0096] Further, the flow-limiting baffle 1142 is provided with a locking bolt, which is used to tightly fix the flow-limiting baffle 1142 in the gate slot 1141, so as to realize the locking and fixing of the flow-limiting baffle 1142, and avoid loosening of the flow-limiting baffle 1142. Since the flow control requirement of each intercepting well is basically fixed and does not need to be repeatedly adjusted in the later period, in other embodiments, the flow-limiting baffle 1142 can also be directly fixed by cement after adjustment, without the need to set the locking bolt, so as to simplify the structure, reduce the cost, and avoid corrosion, rust and loosening of the bolt.

[0097] As Figure 4As shown, the prefabricated intercepting well 1 also includes a ladder 13 installed in the well shaft 12 and / or in the well chamber 111. The ladder 13 is prefabricated directly in the well shaft 12 and / or in the well chamber 111 to facilitate relevant personnel to enter the prefabricated intercepting well 1 for inspection and cleaning operations. Secondly, since the well shaft 12 and the base 11 are positioned by the cooperation of the first arc groove 1111 and the second arc groove 121, the well shaft 12 can be circumferentially positioned relative to the well chamber 111. When the well shaft 12 and the well chamber 111 are both equipped with the ladder 13, the ladder 13 in the well shaft 12 and the ladder 13 in the well chamber 111 can be simultaneously connected when assembling the first arc groove 1111 and the second arc groove 121. Compared with the method of adding the ladder 13 later, there is no need to repeatedly position the ladder 13, making the construction more convenient and faster, and avoiding the installation structure of adding the ladder later from breaking through the joint between the well shaft 12 and the base 11.

[0098] like Figure 6 As shown, the prefabricated intercepting sewer 1 also includes a well cover plate 14, a connecting cylinder 15, and a well cover 16. The well cover plate 14 has a connecting hole 141. After step S500, the following is also included:

[0099] Step S600: First, lay a layer of waterproof cement mortar at the bottom of the well cover plate 14, then cover the top of the well 12 with the well cover plate 14, fill the gap between the well cover plate 14 and the well 12 with waterproof cement mortar to form a raised joint, and finally apply triangular plaster around the well cover plate 14 with waterproof cement mortar.

[0100] Step S700: Hoist the connecting cylinder 15 onto the well cover plate 14 and align the central through hole of the connecting cylinder 15 with the connecting hole 141 of the well cover plate 14. Then, apply waterproof cement mortar to the gap between the connecting cylinder 15 and the well cover plate 14 to form a triangular plaster.

[0101] Step S800: Place the manhole cover 16 over the top opening of the connecting cylinder 15.

[0102] Specifically, the hole diameter of the connecting hole 141 is smaller than the top opening of the well shaft 12. Since the assembled sewage interception well 1 needs to meet the demand of large processing capacity and facilitate the relevant personnel to enter the inside for maintenance and cleaning of foreign matters, the well shaft 12 needs to be set as a structure with larger size, which causes the top opening of the well shaft 12 to be unable to match the conventional well cover. At this time, the well shaft cover plate 14 is first covered on the top end of the well shaft 12, and then the connecting cylinder 15 and the well cover 16 are sequentially installed through the connecting hole 141 on the well shaft cover plate 14, so that the conventional well cover can be configured, and the applicability is stronger. Moreover, the corresponding waterproof treatment is performed between the well shaft cover plate 14 and the well shaft 12 and between the connecting cylinder 15 and the well shaft cover plate 14, so that the joint seam water seepage is effectively avoided.

[0103] Further, the well shaft cover plate 14 and / or the connecting cylinder 15 is / are provided with the ladder 13, so as to improve the use convenience.

[0104] As shown in Figure 2 and Figure 3 The base 11 further includes a fixed base 115, the well chamber 111 is installed on the fixed base 115 and is in airtight connection with the fixed base 115, the fixed base 115 is larger than the outer diameter of the well chamber 111, and the entire assembled sewage interception well 1 is supported through the fixed base 115, so as to ensure the support strength and stability.

[0105] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method of installing a fabricated sewer well, characterized by, The application relates to a method for installing a prefabricated sewage well (1), wherein the prefabricated sewage well (1) comprises a base (11) and a well shaft (12), the base (11) comprises a well chamber (111) in a cylindrical structure and a positioning ring (112) arranged on the outer periphery of the well chamber (111), the positioning ring (112) extends upwards and protrudes from the top end of the well chamber (111), thereby forming a positioning groove (113) at the top end of the well chamber (111) by the positioning ring (112), and the method comprises the following steps: S100: excavating a foundation pit and arranging a hardened cushion layer on the foundation pit; S200: hoisting the base (11) of the prefabricated sewage well (1) to the hardened cushion layer for installation and fixation; S300: inserting the well shaft (12) into the positioning groove (113) of the base (11); S400: wrapping a steel mesh sheet at the joint position between the well shaft (12) and the base (11), and then sealing and treating by using waterproof concrete; S500: performing a closed water test, and sealing and completing the position with leakage; The top end of the well chamber (111) is provided with a first arc-shaped groove (1111), the bottom end of the well shaft (12) is provided with a second arc-shaped groove (121), the second arc-shaped groove (121) is used for jointly surrounding the first arc-shaped groove (1111) to form a first pipeline hole, and a positioning mark is prearranged in the second arc-shaped groove (121), and step S300 specifically comprises the following steps: S301: installing a laser emitter on the first arc-shaped groove (1111) and emitting laser light in the vertical direction upwards through the laser emitter; S302: hoisting the well shaft (12) above the base (11), and adjusting the position of the well shaft (12) so that the laser light emitted by the laser emitter is aligned with the positioning mark in the second arc-shaped groove (121); S303: vertically lowering the well shaft (12) and inserting the well shaft (12) into the positioning groove (113) of the base (11).

2. The method of claim 1, wherein, The first arc-shaped groove (1111) comprises a first groove wall and a second groove wall arranged in sequence in the axial direction, and the second groove wall is arranged on the side of the first groove wall facing the inner cavity of the well chamber (111), and step S300 specifically comprises the following steps: S301: embedding a first water pipe into the first groove wall, then installing a laser emitter on the second groove wall, and emitting laser light in the vertical direction upwards through the laser emitter; S302: hoisting the well shaft (12) above the base (11), and adjusting the position of the well shaft (12) so that the laser light emitted by the laser emitter is aligned with the positioning mark in the second arc-shaped groove (121); S303: vertically lowering the well shaft (12) and inserting the well shaft (12) into the positioning groove (113) of the base (11), and making the second arc-shaped groove (121) of the well shaft (12) clamped to the first water pipe; S304: removing the laser emitter and completely toping the first water pipe into the first pipeline hole.

3. The prefabricated sewage well installation method according to claim 2, wherein Before step S301, further comprising: applying waterproof paint or wrapping polyester non-woven fabric at the interface position of the first water pipe; After step S304, further comprising: reinforcing and sealing the gap between the first water pipe and the first pipe hole by using waterproof mortar.

4. The method of claim 3, wherein, The caliber of the second slot wall is larger than that of the first slot wall, so as to form a receiving cavity for filling waterproof mortar between the second slot wall and the first water pipe.

5. The method of claim 1, wherein, Before step S300, further comprising: The positioning slot (113) is cleaned, and a sealing rubber strip for elastically abutting against the well shaft (12) is arranged on the bottom wall and / or side wall of the positioning slot (113).

6. The method of installing a prefabricated sewer well of claim 1, wherein, Step S100 specifically comprises: S101: The first water pipe needing diversion is blocked and dredged, and after confirming that there is no flowing water in the first water pipe, the first water pipe at the diversion position is cut and broken; S102: After excavating the foundation pit to the replacement layer at the cut and broken position of the first water pipe, the soil base is replaced and compacted, the concrete cushion is constructed after compaction, and the concrete cushion is cured and hardened to obtain the hardened cushion.

7. The method of claim 6, wherein the method further comprises: Step S200 specifically comprises: S201: The installation position of the base (11) on the hardened cushion is determined by measuring the actual position of the first water pipe and the line; S202: The base (11) of the assembled sewage interception well (1) is hoisted to the determined installation position for installation and fixation.

8. The method of installing a prefabricated sewer well of claim 1, wherein, The well chamber (111) is provided with a second pipe hole (1112), and the base (11) further comprises an adjusting assembly (114) arranged in the inner cavity of the well chamber (111), and the adjusting assembly (114) comprises a gate slot (1141) and a flow limiting baffle (1142) embedded in the gate slot (1141); After step S300, further comprising: The second water pipe is connected to the second pipe hole (1112), the flow limiting baffle (1142) is driven to slide relative to the gate slot (1141) to adjust the shielding area of the flow limiting baffle (1142) to the second pipe hole (1112) according to the flow demand of the second water pipe, so as to adjust the exposed area of the second pipe hole (1112), and finally the flow limiting baffle (1142) is fixed relative to the gate slot (1141).

9. The method of claim 1, wherein, The assembled sewage interception well (1) further comprises a well shaft cover plate (14), a connecting cylinder (15) and a well cover (16), and the well shaft cover plate (14) is provided with a connecting hole (141); After step S500, further comprising: S600: A layer of waterproof cement mortar is laid on the bottom of the well shaft cover plate (14), then the well shaft cover plate (14) is arranged on the top end of the well shaft (12), waterproof cement mortar is embedded and formed into a convex joint at the gap between the well shaft cover plate (14) and the well shaft (12), and finally waterproof cement mortar is used to perform triangular mortar treatment around the well shaft cover plate (14); S700: The connecting cylinder (15) is hoisted to the well shaft cover plate (14) and the center through hole of the connecting cylinder (15) is aligned with the connecting hole (141) of the well shaft cover plate (14), then waterproof cement mortar is used to perform triangular mortar treatment at the gap between the connecting cylinder (15) and the well shaft cover plate (14); S800: Covering the well lid (16) on the top end opening of the connecting cylinder (15).

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