CN201247236Y

CN201247236Y - Bottom drainage vaporizing penetrating apparatus

Info

Publication number: CN201247236Y
Application number: CNU2008201489250U
Authority: CN
Inventors: 肖俊夫; 刘战东; 段爱旺
Original assignee: Farmland Irrigation Research Institute of CAAS
Current assignee: Farmland Irrigation Research Institute of CAAS
Priority date: 2008-08-22
Filing date: 2008-08-22
Publication date: 2009-05-27
Anticipated expiration: 2018-08-22

Abstract

The utility model relates to a bottom water-draining type lysimeter, wherein each pair of test pits is arranged in parallel in the east-west direction and is tightly connected in the north-south direction, the upper surfaces are consistently arranged in a field with the ground surface, wherein covered ways are arranged under the ground surface between two rows of the test pits, and walls of the test pits and the covered ways are formed from casting reinforced bars and cast-in-place concrete, a galvanized board which extends outside the ground surface is arranged on each of the test pits, barrel-drains and collecting wells are arranged on both sides of the bottoms of the covered ways, seepage insulating rings are respectively arranged on the bottoms of the test pits, drainage pipes are communicated in the covered ways in the seepage insulating rings, gate valves and exhaust water meters are respectively arranged on water outlets of the drainage pipes, vent holes and fans are arranged on the tops of the covered ways, watering pipes are arranged on both sides of each vent hole from the inners of the covered ways, soil water-sample extracting devices are arranged in the covered ways, an instrument channel is communicated on each of water sample extracting devices, water meters and inlet valves are respectively arranged in the covered ways, and one ends of the covered ways are led out in-and-out ports. The utility model has the advantages of convenient observation, a plurality of measuring items and accurate data.

Description

End drainage type lysimeter is arranged

Technical field:

The utility model relates to the measurement of being undertaken by capacity, particularly a kind of under physical environment with surveying the water balance of hole group to crops, material balance, soil solute transport are observed end drainage type lysimeter.

Background technology:

Existing lysimeter generally is to use by many to be separately installed with irrigation pipe to surveying the survey hole group who forms in the hole on the ground in the middle of each surveys the hole, and vent port is arranged on the gallery.Survey the hole with concrete or brick surrounding, the bottom surface wall that manufactures, middle gallery is not had unified demand.Because great majority are surveyed the hole physical dimensions and do not met existing irrigation tests code requirement, so that ubiquity test data is inaccurate, personnel's turnover can cause certain damage to crop in test process.

Summary of the invention:

What the purpose of this utility model provided that a kind of various data rational in infrastructure, test accurately, can not injure crops has an end drainage type lysimeter.

Technical solution of the present utility model is finished as follows, it includes many to surveying the survey hole group who forms in the hole, it is characterized in that: it is arranged side by side that each cheats into east-west direction to survey, North and South direction closely links to each other, consistent with the ground above field that is arranged on, in the middle of surveying the hole, two rows are provided with gallery below ground, the bottom of gallery is lower than surveys ground, hole, each survey hole wall and gallery wall are by reinforcing bar, concrete casting forms, survey near coal-mine place has galvanized sheet to elevate above the soil near the limit wall at each, be provided with trench drain and sump in the gallery two bottom sides, submersible pump is arranged in the sump, be respectively equipped with every oozing circle in the drainage layer bottom each surveys the hole, in oozing circle, in gallery, be communicated with drainpipe, at each drainpipe water delivering orifice gate valve and drainage metering device are installed, survey a middle vent port and the exhaust fan of being respectively equipped with in hole at the gallery top in per four, in gallery, in each survey hole of this group, irrigation pipe is installed respectively in each vent port both sides, in gallery, in the survey hole of correspondence, be provided with a soil water sample extraction element respectively, in the survey of this correspondence hole, be communicated with instrument channel on the different soil depth respectively on each water sample extraction element, be separately installed with water meter and water intaking valve on each irrigation pipe in gallery, lead to the staff and import and export away from surveying the hole from underground at an end of gallery.It is convenient to the utlity model has observation, and the mensuration project is many, and data are advantage accurately.

Description of drawings:

Fig. 1 is a planar structure synoptic diagram of the present utility model,

Fig. 2 is the A-A cut-open view of Fig. 1.

Embodiment:

Describe embodiment in conjunction with the accompanying drawings in detail, the utility model is that 12 pairs of survey holes 5 are arranged side by side according to east-west direction, North and South direction closely links to each other, the consistent field that is arranged on of upper surface with ground, in the middle of surveying the hole, two rows are provided with a gallery 15 that can supply personnel to come in and go out below ground, the bottom of gallery is lower than surveys hole baseplane 30-50cm, each surveys hole wall 2 and the gallery wall forms by steel bar concrete casting, survey has galvanized sheet 1 to fix on the surrounding edge wall of hole and elevates above the soil at each, be provided with trench drain 14 and sump in the gallery two bottom sides, be provided with submersible pump in the sump, be used for the draining in the gallery.Be respectively equipped with in the drainage layer 4 bottom each surveys the hole every oozing circle 3, in oozing circle, in gallery, be communicated with drainpipe 13, be separately installed with gate valve and drainage metering device 12 at each drainpipe water delivering orifice, survey a middle vent port and the exhaust fan 7 of being respectively equipped with in hole at the gallery top in per four, in gallery, in each survey hole of this group, be provided with an irrigation pipe 6 respectively in each vent port outlet both sides, in gallery, in the survey hole of correspondence, be provided with a soil water sample extraction element 9 respectively, in the survey of this correspondence hole, be communicated with instrument channel 8 on the different soil depth respectively on each water sample extraction element, can make things convenient for sample examination.Be separately installed with water meter 10 and water intaking valve 11 on each irrigation pipe 6 in gallery, lead to the staff and import and export 16 away from surveying the hole from underground at an end of gallery.The utility model with in the past similarly lysimeter compare, be arranged in operating systems such as the observation of lysimeter, irrigation, draining underground, hinder and damage less to the physical environment microclimate around the lysimeter, test data comprehensively and has accurately reached the technical standard of " irrigation tests standard " defined.

Claims

1, end drainage type lysimeter is arranged, it includes many to surveying the survey hole group who forms in the hole, it is characterized in that: it is arranged side by side that each cheats into east-west direction to survey, North and South direction closely links to each other, consistent with the ground above field that is arranged on, in the middle of surveying the hole, two rows are provided with gallery below ground, the bottom of gallery is lower than surveys ground, hole, each survey hole wall and gallery wall are by reinforcing bar, concrete casting forms, survey near coal-mine place has galvanized sheet to elevate above the soil near the limit wall at each, be provided with trench drain and sump in the gallery two bottom sides, submersible pump is arranged in the sump, be respectively equipped with every oozing circle in the drainage layer bottom each surveys the hole, in oozing circle, in gallery, be communicated with drainpipe, at each drainpipe water delivering orifice gate valve and drainage metering device are installed, survey a middle vent port and the exhaust fan of being respectively equipped with in hole at the gallery top in per four, in gallery, in each survey hole of this group, irrigation pipe is installed respectively in each vent port both sides, in gallery, in the survey hole of correspondence, be provided with a soil water sample extraction element respectively, in the survey of this correspondence hole, be communicated with instrument channel on the different soil depth respectively on each water sample extraction element, be separately installed with water meter and water intaking valve on each irrigation pipe in gallery, lead to the staff and import and export away from surveying the hole from underground at an end of gallery.