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Optimization arrangement method for cavern groups of underground water sealed caverns

A layout method and technology of cavern group, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems that affect economy and safety, cause safety, hidden dangers, etc., improve overall stability, and have broad application prospects , the effect of expanding storage and transportation efficiency

Active Publication Date: 2017-05-10
SINOPEC SHANGHAI ENG +1
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Problems solved by technology

[0006] Large-scale underground parallel caverns form a weak layer of underground space that is hollowed out (cavities) at continuous intervals in the entire rock mass, resulting in a decrease in the local or overall stability of the surrounding rock of the cavern or cavern group
Large-scale underground water-sealed caverns generally adopt the method of parallel arrangement of caverns and form cavern groups, which directly leads to the problem of reasonable certainty of cavern spacing and further affects economic and safety issues.
Obviously, this arrangement in the prior art has a significant defect, that is, the natural "arch" effect of the stable rock mass above the cavern on the weak layer of the cavern group has not been fully considered, so that the distance between the caverns Determination of failure to truly optimize, in some way creating a safety hazard, and failure to achieve optimal economics

Method used

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  • Optimization arrangement method for cavern groups of underground water sealed caverns
  • Optimization arrangement method for cavern groups of underground water sealed caverns
  • Optimization arrangement method for cavern groups of underground water sealed caverns

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Embodiment 1

[0035] This embodiment is a method for optimizing the arrangement of caverns in a large-scale underground water-sealed cavern, including the following steps:

[0036] Step 1: According to the material physical and mechanical properties of the rock and soil mass obtained from conventional survey experiments, the primary width L, height H, and depth D of the parallel arrangement of caverns, and the spacing S between adjacent caverns, through Calculate the stress and deformation of the surrounding rock of the cavern group, so as to calculate the vertical deformation curve function y at the top of the cavern group 0(x)=f(x), corresponding to a vertical deformation curve; flip this function with the X axis as the horizontal axis, and you can get a reasonable arched curve function: y(x)=-f(x), which corresponds to a reasonably arched curve;

[0037] Step 2: Adjust and arrange the tops of each cave tank in the cavern group along the reasonable arched curve, and keep the bottom eleva...

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Abstract

The invention discloses an optimization arrangement method for cavern groups of underground water sealed caverns. The method comprises the steps of performing calculation by using a spacing adjustment cyclic search algorithm through utilizing a mechanical action principle of an inherent natural "arch" in a rock-soil body of nature to obtain a vertical deformation curve of the top of each cavern group, and turning over the vertical deformation curve by an X axis as a horizontal axis to obtain a plurality of reasonable arched curves; selecting a corresponding optimal reasonable arched curve when a surrounding rock of each cavern group has a maximum stress and minimum deformation; and finally arranging the top of each cavern along the optimal reasonable arched curve to obtain optimal arrangement of the cavern groups. The cavern groups arranged in an arch shape are adopted, so that the overall stability of the surrounding rocks of the cavern groups is effectively improved; and the method is of positive technical and economic significances for reducing project investment and increasing cavern utilization rate, so that the method has a wide application prospect.

Description

technical field [0001] The invention relates to the field of petrochemical industry, in particular to a method for optimally arranging cavern groups of underground water-sealed caverns. Background technique [0002] The technology of storing crude oil in underground water-sealed caverns is an engineering technology that has been introduced, digested and absorbed by my country in the past ten years. The anti-seepage water seal effect on oil products has become the main method of my country's strategic crude oil reserves due to its economical rationality, safety and reliability, land resource conservation, large storage capacity and high storage efficiency. [0003] According to the needs of oil product variety and storage efficiency, two or more caverns are usually connected to each other to form a cave tank for one oil product variety, and the cave tank adopts the fixed water level method to store oil. In order to ensure that the oil products between the caverns can communic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/13G06F2119/06
Inventor 何国富
Owner SINOPEC SHANGHAI ENG
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