Sewer Component Anchoring for Single-Step Flowable Fill Installation
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Solution Overview
Problem
Existing methods for laying sewer system components, such as pipes and shafts, are time-consuming and costly due to the need for multiple steps and the use of flowable fill, which requires significant time for solidification.
Innovation Solution
The method involves using ground anchors and anchor straps to secure sewer system components, allowing flowable fill to be introduced up to the trench top in a single step, combined with ballast elements for additional support and sealing elements to ensure secure positioning and buoyancy protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If flowable fill is used to prevent buoyancy of buried pipes, then buoyancy protection is achieved, but installation time increases due to multiple steps and solidification waiting periods
Solution Approach 1:
Ground anchors are installed in advance and anchor straps are pre-positioned to secure the pipe before flowable fill is introduced. This preliminary securing action eliminates the need for waiting periods and multiple steps, allowing continuous operation and reducing total installation time while maintaining buoyancy protection
Solution Approach 2:
The patent extracts and removes the time-consuming solidification step by using mechanical anchoring systems instead of relying on flowable fill solidification for buoyancy protection. The anchoring system provides immediate stabilization without requiring chemical or physical setting time
2Reliability
If multiple steps are used for laying sewer components with flowable fill, then proper positioning and buoyancy protection are achieved, but installation cost increases
Solution Approach 1:
The patent combines multiple functions into a single integrated anchoring system that simultaneously provides positioning, orientation, and buoyancy protection. The ground anchors with pre-positioned straps perform multiple tasks in one operation, eliminating the need for separate steps and reducing overall installation cost
3Reliability
If big bags are used to weight down pipes, then buoyancy protection is achieved, but device complexity and installation effort increase
Solution Approach 1:
The patent replaces complex, reusable big bag systems with simple, permanent ground anchors and straps that are integrated into the structure. The anchors serve as both installation tools and permanent structural elements, eliminating the need for additional materials and simplifying the overall system
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces installation time to a single day, lowers costs, and ensures consistent positioning and buoyancy protection, while also allowing for flexible construction and reduced environmental impact through the use of excavated material in producing the flowable fill.
Implementation Method 1
the anchor straps are connected to each other above the at least one channel system component and tensioned by means of a tensioning device to lash down the at least one channel system component
Implementation Method 2
To prevent buoyancy, for instance when using flowable fill for buried pipes
Implementation Method 3
Flowable fill is then poured into the trench up to the top of the pipe. After about a day, the flowable fill has solidified
Data Source
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AI summary
Method for laying sewer system components underground, comprising: - excavating a trench (16), in particular a pipe trench, - placing at least one sewer system component in the excavated trench (16), - fixing the placed at least one sewer system component in the excavated trench (16) by means of at least two earth anchors (1) at at least one point in the longitudinal extent of the at least one sewer system component and - filling the trench (16) with flowable fill up to the top edge (19) thereof.