SU1705488A1 - Amelioration system - Google Patents

Abstract

The invention relates to land reclamation and can be used in the drainage of land, the surface of which is experiencing uneven deformation. The aim of the invention is to increase the operational reliability and increase the water intake capacity of the system. The ameliorative system on the land under development contains a drainage network with two brown collectors and a pumping unit. Moreover, the drains are arranged parallel to the iso-gypsum of the subsidence trough, and their length increases with distance from the center of descent. The two-level collector is divided in length into separate sections by vertical inserts-pipes. 2 Il.

Description

The invention relates to land reclamation and can be used in the drainage of land, the surface of which undergoes uneven deformations (subsidence).

The aim of the invention is to increase the operational reliability and increase the water intake capacity under the conditions of deformation of the surface of the reclaimed territory.

Figure 1 shows a reclamation system, a plan; figure 2 - section aa in figure 1.

The system includes a pumping unit 1, which is connected by a suction pipe 2 to a hermetically made cylinder 3, which is located in the well 4. A collector 5 flows into the cylinder 3. The collector 5 is made of corrugated plastic pipes and is arranged in two pipes. Drain 6 of corrugated pipes are connected to the upper deck of the collector 5. Upper rus 5 and lower 7 collector

are connected by inserts-pipes 8, located in the intervals between drains. Considering the nature of the surface deformation, it is recommended to arrange drainage lines parallel to the iso-gypsum of the subsidence - the horizontal of the new ground surface, i.e. in the direction of the least deformations. For the same purpose, different lengths of drains are accepted - less in places of greatest deformations (closer to the center of decrease). The release of short drains from the system will not significantly affect the ameliorative situation of the drained territory. Different lengths of drains are also accepted based on the principle of the system. Its draining effect is caused by the magnitude of the vacuum created in drains. Since the vacuum in the collector source is reduced in it, in order to distribute it more evenly, the drains nearest to the pump (lowering center) are arranged to be shorter. Long length

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drains to the periphery are needed to increase their water holding capacity and create uniform drainage. Proceeding from the planned arrangement of the system, the collector 5, which is arranged in the direction from the periphery to the center of the lowering — along the line with the most uneven deformation of the surface — is most damaged. Since the efficiency of the entire system depends on the performance of the collector, in order to increase its reliability, it is arranged to be two-tiered. The water discharged from the drains is discharged through conduit 9 to channel 10.

The system works as follows.

If it is necessary to drain, pump 1 is turned on and water from the drainage system through pipeline 9 is discharged into channel 10. If one of the collector beds is damaged as a result of subsidence, water flow through the inserts of pipe 8 can be redistributed from one river to another. Thus, if collector 5 is damaged at point A (upper Russian), water from collector 5, by insertion 8 b, enters lower Russian 7. Drains 6 located above this damage continue to work. Similarly, the system will function if the collector is damaged elsewhere.

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The ameliorative system on the land being developed, including drains, a two-sided collector and a pumping installation, is characterized in that

increase operational reliability and increase water intake capacity under the conditions of deformation of the surface of the reclaimed territory; drains are arranged parallel to the iso-gypsum of the sagging trough

with an increase in their length as they move away from the center of the descent, and the two-level collector is divided in length into separate sections by vertical tube inserts.

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Claims (1)

Claim The reclamation system on the undermined lands, including drains, a two-tiered collector and a pumping unit, characterized in that, in order to increase operational reliability and increase water intake under conditions of deformation of the reclaimed territory, the drains are parallel to the isogypses of the subsidence trough with an increase in their length as they move away from the lowering center, and the two-tier collector is divided along the length into separate sections by vertical pipe inserts. V. Pchelkin