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Multi-level long-path discharging-limiting device suitable for underground engineering

An underground engineering, multi-level technology, applied in protection devices, infrastructure engineering, construction, etc., can solve the problems of insufficient bearing capacity of the underground main structure, damage to the balance of the water environment, and increase construction costs, so as to achieve the function of protecting the balance of the water environment, Weaken adverse effects and optimize the effect of the structural stress system

Active Publication Date: 2021-11-09
CHINA TIESIJU CIVIL ENG GRP CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The full drainage scheme can reduce the water pressure and reduce the adverse impact of external water pressure on the main underground structure, but it is easy to cause water damage, destroy the balance of the water environment and bring about environmental problems (adverse effects caused by the disordered distribution of groundwater); the full blocking scheme It can avoid damage to the water environment, but it will cause the underground main structure to withstand high water pressure, requiring the use of water pressure-resistant lining, which increases the construction cost, and may rupture due to insufficient bearing capacity of the underground main structure due to reduced durability during long-term operation

Method used

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  • Multi-level long-path discharging-limiting device suitable for underground engineering
  • Multi-level long-path discharging-limiting device suitable for underground engineering
  • Multi-level long-path discharging-limiting device suitable for underground engineering

Examples

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Effect test

Embodiment 1

[0023] This embodiment provides a multi-level long-path limiting discharge device suitable for underground engineering, such as Figure 1-4 As shown, it should be noted that the drawings of the present invention are all in a very simplified form and use inaccurate proportions, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention, and are not intended to limit the implementation of the present invention. the limiting conditions. Any structural modification, change in proportion or size adjustment shall fall within the scope covered by the technical content disclosed in the present invention without affecting the effect and purpose of the present invention.

[0024] A multi-level long-path limited drainage device suitable for underground engineering, comprising: a limited drainage pipe network system, a water collection structure, and a drainage groove 12. The limited drainage pipe network system includes a ve...

Embodiment approach

[0026] Outside the side wall of the underground main structure 1, start from 1 / 4H (H is the height of the side wall of the structure), and set a graded crushed stone filter layer 7 at a fixed interval of about 1 / 5H (when 1 / 5H>10m, fix The interval distance is 10m), and the width of the graded crushed stone filter layer 7 can be about 1500mm, so as to ensure that the graded crushed stone filter layer can effectively concentrate the groundwater in the nearby soil and temporarily store it.

[0027] The nylon membrane filter layer 8 wraps the vertical water-permeable blind pipe 3 to prevent the dead pipe from being blocked. The graded crushed stone filter layer 7 at each depth collects water. After the groundwater is filtered by the nylon membrane filter layer 8, it enters the vertical permeable blind pipe 3 from the permeable hole. , the diameter of the permeable holes and the density of the longitudinal arrangement are determined according to the buried depth.

[0028] Two adja...

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Abstract

The invention discloses a multi-level long-path discharging-limiting device suitable for underground engineering. The device comprises a limited drainage pipe network system and a water collecting structure. Graded broken stone filter layers are arranged outside the side wall of a main underground body structure at fixed intervals; a longitudinal water-permeable blind pipe is arranged in each graded broken stone filter layer; every two adjacent longitudinal water-permeable blind pipes are connected through a plurality of sections of inclined flow guide pipes; and the longitudinal water-permeable blind pipe at the bottom layer is connected to the tops of a plurality of vertical drainage pipes. The bottom of each vertical drainage pipe is connected to a corresponding transverse drainage pipe. A terminal valve connected to a controller is arranged on each section of inclined flow guide pipe; water pressure sensors connected to the controller are arranged in the stratum beside the main underground body structure; and the water pressure sensors are respectively located between the adjacent graded broken stone filter layers, and used for sensing the pore water pressure in a nearby soil body. The device can quickly and effectively reduce the external purified water pressure of the underground structure, and weaken the adverse effect of a high water head on the underground structure.

Description

technical field [0001] The invention belongs to the technical field of discharge limitation for underground engineering, and in particular relates to a multi-level long-path discharge limitation device suitable for underground engineering. Background technique [0002] With the continuous increase of urban traffic demand, the development and utilization of underground space has become a new trend in my country's traffic development, so the construction of urban underground projects has increased accordingly. In coastal cities, the groundwater table is relatively high, and high water head will have adverse effects on urban underground engineering structures. At present, there are mainly two solutions for high water head: full drainage and full plugging. The full drainage scheme can reduce the water pressure and reduce the adverse impact of external water pressure on the main underground structure, but it is easy to cause water damage, destroy the balance of the water environ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D31/10E02D31/02
CPCE02D31/10E02D31/004Y02A30/60
Inventor 余海波章新生赵晓明张红星宋程鹏李芳林辉钟水溶饶星龙张志军王海江王平孝朱俊涛汤铖张世坤王峥峥
Owner CHINA TIESIJU CIVIL ENG GRP CO LTD