Structure for actively controlling vertical displacement of pipeline or building foundation

Abstract

The utility model relates to the technical field of civil engineering, in particular to a structure for actively controlling vertical displacement of a pipeline or a building foundation, which comprises a steel pipe cross beam and a hydraulic jack, the two ends of the hydraulic jack penetrate into working wells on the two sides of the existing pipeline or the building structure, and the hydraulic jack is arranged in the working wells and supports the steel pipe cross beam. The utility model has the advantages that the force transmission path is clear, and the stress system is definite; the substrate pressure in a certain space can be reduced, an isolation effect is generated, and implementation of other projects below the substrate is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering technology, specifically to a structure for actively controlling the vertical displacement of pipeline or building foundations. It can be used to adjust the settlement of existing pipeline or building foundations, protect existing pipeline or building foundations from settlement, and also serve as an isolation structure between existing pipeline or building foundations and the project to be built below, protecting the safety of both the completed and planned projects. Background Technology

[0002] Existing pipelines or buildings may experience foundation settlement due to their own weight, changes in geological conditions, and surrounding construction. Foundation settlement may affect the functionality of pipelines or buildings or even compromise their structural safety. When certain projects require construction beneath existing buildings, the significant foundation pressure can also lead to a high risk factor for the construction below. The commonly used method for controlling foundation settlement of pipelines or buildings is foundation grouting. However, foundation grouting is often difficult to control grout diffusion, resulting in unsatisfactory settlement control and an inability to promptly remedy any adverse effects that may occur during the construction of the underlying works. For some major and sensitive pipelines that require in-situ protection, suspension protection affects traffic, and grouting schemes are unreliable. Summary of the Invention

[0003] The purpose of this utility model is to address the shortcomings of the existing technology by providing a structure for actively controlling the vertical displacement of pipelines or building foundations. Employing the principle of vertical support, a vertical support structure is constructed beneath existing pipelines or building foundations. This structure allows for flexible adjustment of the foundation's vertical displacement within a certain range according to predetermined values, protecting the foundation and preventing unbearable displacement. It enables the support of existing building foundations and facilitates safe excavation beneath existing structures.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A structure for actively controlling the vertical displacement of pipeline or building foundations, installed below existing pipelines or buildings, characterized in that: it includes a vertical support structure, which comprises a steel pipe beam and hydraulic jacks, wherein the steel pipe beam is located below the existing pipeline or building, and its two ends pass through working wells set on both sides of the existing pipeline or building, and the hydraulic jacks are set in the working wells and support the steel pipe beam.

[0006] A base foundation is provided inside the working well, and the hydraulic jack is mounted on the base foundation.

[0007] It also includes a settlement monitoring system and a hydraulic jack servo control system. The settlement monitoring system is used to monitor the settlement data of the existing pipelines or buildings, and the hydraulic jack servo control system controls the working status of the hydraulic jacks according to the settlement data.

[0008] Several vertical support structures are provided below the existing pipelines or buildings, and the several vertical support structures are arranged at intervals within the range of the existing pipelines or buildings.

[0009] The cross section of the steel pipe beam is rectangular.

[0010] The advantages of this utility model are:

[0011] 1) It adopts the vertical support principle, with a clear force transmission path and a well-defined force system.

[0012] 2) It can reduce the internal pressure of the soil under the support area, produce an isolation effect, and facilitate the implementation of other projects under the foundation.

[0013] 3) It can be used to adjust the uneven settlement of existing pipelines or building foundations.

[0014] 4) It can be used for in-situ protection of pipelines, avoiding damage to ground roads and impacting traffic.

[0015] 5) The supporting components are constructed using a small pipe jacking machine, which is convenient to construct, has minimal impact, and has high rigidity and strong load-bearing capacity.

[0016] 6) The monitoring data of building settlement can be linked and shared with the data of the hydraulic jack control system, and all-weather fully automatic intelligent adjustment can be achieved through software algorithms.

[0017] 7) It has good reliability, good innovation and application value, and is worth promoting. Attached Figure Description

[0018] Figure 1 This is a plan view of the present invention;

[0019] Figure 2 This is a cross-sectional view of the steel pipe beam in this utility model;

[0020] Figure 3 This is a construction flowchart of this utility model. Detailed Implementation

[0021] The features and other related features of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate the understanding of those skilled in the art:

[0022] like Figure 1-3As shown in the figure, numbers 1-6 represent: 1. Existing pipeline or building foundation, 2. Working well, 3. Steel pipe beam, 4. Base foundation, 5. Hydraulic jack, 6. Structure to be built.

[0023] Example: Figures 1 to 3 As shown, in this embodiment, the structure that actively controls the vertical displacement of pipelines or building foundations is set below the existing building foundation 1. It can flexibly adjust the vertical displacement of the foundation within a certain range according to a predetermined value, protect the foundation, avoid unbearable displacement, support the existing building foundation, and enable safe excavation under the existing building.

[0024] Specifically, such as Figure 1 As shown, the structure in this embodiment includes a steel pipe beam 3 installed below the foundation 1 of an existing pipeline or building, with both ends of the beam passing through working shafts 2 located on both sides of the existing pipeline or building 1. The working shafts 2 are vertically oriented. A hydraulic jack 5 is installed inside the working shaft 2 and supports the steel pipe beam 3. A base foundation 4 is installed inside the working shaft 2, and the hydraulic jack 5 is mounted on the base foundation 4, which provides stable support for the hydraulic jack 5.

[0025] In this embodiment, a settlement monitoring system and a hydraulic jack servo control system are also included. The settlement monitoring system is used to monitor the settlement data of existing pipelines or buildings 1, and the hydraulic jack servo control system controls the working status of the hydraulic jack 5 according to the settlement data.

[0026] Several vertical support structures are provided below the existing pipelines or buildings, and the several vertical support structures are arranged at intervals within the range of the existing pipelines or buildings.

[0027] like Figure 2 As shown, the cross section of the steel pipe beam 3 is rectangular to ensure the stability and accuracy of force transmission.

[0028] like Figure 3 As shown, this embodiment includes the following steps when applied:

[0029] 1) Conduct health assessments and stress analyses on the foundations of pipelines or buildings that need protection. Select appropriate locations and angles to determine the isolation and protection zone based on geological conditions. If necessary, select corresponding locations for the isolation and protection zones of pipelines or buildings to implement working wells 2. At the bottom of the working wells, implement base foundations 4 according to stress requirements.

[0030] 2) A pipe jacking machine is used to jack the steel pipe beam 3 between the two working shafts 2, so that the steel pipe beam 3 passes under the existing pipeline or building foundation 1, and the two ends of the steel pipe beam 3 are located in the working shaft 2, and the length of the steel pipe beam 3 remaining in the working shaft 2 meets the installation requirements of the hydraulic jack 5.

[0031] 3) Erect hydraulic jacks 5 between the base foundation 4 and the steel pipe beam 3. The settlement of existing pipelines or building foundations can be adjusted and controlled by lifting the hydraulic jacks. The structure to be built 6 (if any) can be excavated under the support of the steel pipe beam 3.

[0032] 4) To further achieve all-weather automatic and intelligent adjustment, a settlement monitoring system can be used to collect settlement data of existing pipelines or building foundations 1, and this settlement data can be linked and shared with the data of the hydraulic jack servo control system. This allows the hydraulic jack 5 to be controlled specifically based on the settlement data; that is, when the settlement data of the existing pipelines or building foundations 1 reaches a certain value, the lifting amount of the hydraulic jack 5 is automatically adjusted according to design requirements. In this embodiment, the settlement monitoring system and the hydraulic jack servo control system can adopt various implementation methods in the prior art.

[0033] During implementation, multiple steel pipe beams 3 can be used depending on the isolation and protection area and the stress requirements, with jacks installed at both ends of each steel pipe beam 3. The steel pipe beams 3 are arranged at intervals within the existing pipeline or building structure 1. This ensures the uniformity and accuracy of force transmission and allows for targeted adjustments and control when uneven settlement occurs in the existing pipeline or building structure 1.

[0034] Although the above embodiments have described the concept and embodiments of the present invention in detail with reference to the accompanying drawings, those skilled in the art will recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, and therefore will not be elaborated here.

Claims

1. A structure for actively controlling the vertical displacement of a pipeline or a building foundation, provided below an existing pipeline or building, characterized in that: The vertical support structure comprises a steel pipe beam and a hydraulic jack, wherein the steel pipe beam is located below the existing pipeline or building structure, the two ends of the steel pipe beam are inserted into the working wells arranged on both sides of the existing pipeline or building structure, and the hydraulic jack is arranged in the working well and supports the steel pipe beam.

2. A structure for actively controlling the vertical displacement of a pipeline or a building foundation according to claim 1, characterized in that: A base foundation is arranged in the working well, and the hydraulic jack is arranged on the base foundation.

3. A structure for actively controlling the vertical displacement of a pipeline or a foundation of a building structure according to claim 1, characterized in that: A settlement monitoring system and a hydraulic jack servo control system are further included, the settlement monitoring system is used for monitoring settlement data of the existing pipeline or building structure, and the hydraulic jack servo control system is connected to control the working state of the hydraulic jack according to the settlement data.

4. The structure of claim 1, wherein: A plurality of vertical support structures are arranged below the existing pipeline or building structure, and the plurality of vertical support structures are arranged at intervals within the range of the existing pipeline or building structure.

5. The structure of claim 1, wherein: The cross section of the steel pipe beam is rectangular.

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