CN209485934U - Riverbed infiltration test system - Google Patents

Abstract

A kind of riverbed infiltration test system is disclosed in the utility model, including water supply device, determine water head equipment, leak device and overflow device, the water supply device includes for bucket and being arranged in for the water pump in bucket, it is described that determine water head equipment include overflow ladle, leak device includes the head pipe for leaking bucket and being arranged on leakage bucket, and overflow device includes spilling water bucket；The water pump connects leakage bucket by water supplying pipe, overflow plate is provided in the overflow ladle, overflow plate and overflow ladle plane perpendicular, overflow ladle is divided into two independent cavitys, the overflow plate height will be lower than the depth of overflow ladle, there are two connectors for the overflow ladle bottom setting, respectively leak connector and overflow adapter, the leakage connector and overflow adapter are connected to the leakage upper two independent cavitys of bucket respectively, the leakage connector connects leakage bucket by leaky pipe, and overflow adapter connects spilling water bucket by overflow pipe.The utility model structure is simple, it can be achieved that the analogue measurement to big horseshoe bend water percolating capacity under different heights of water level operates.

Description

Riverbed infiltration test system

Technical field

The utility model relates to hydrogeological survey technical field, in particular to a kind of riverbed infiltration test system.

Background technique

It is flood period and phase to be measured to the vertical leakage parameter of flood inundation on tracks band in riverbed during geological survey Basic data is provided to the prediction for the leakage increment that the period when a river is at its normal level has more, it will usually carry out riverbed infiltration test.Riverbed infiltration examination Testing generally use at present is monocycle infiltration test principle；Monocycle infiltration test is that a kind of common field measuring aeration zone is loose The simple and easy method of layer and rock stratum infiltration coefficient, suitable for soil layers such as more than level of ground water sand, sand boulder and cobble etc..Existing survey There are mainly two types of trial assembly is set: first is that, in test ring inner wall indexing, being passed through with the unclosed seeping container in bottom to filling the water in test ring Artificial control plus the general water level that controls of water speed are constant, and this method can add water into seeping container, remove suitable for being conducive to The seeping container of the small volume of fortune, but head cannot be maintained to stablize well.Second is that with the seeping container of a constant volume to examination It is filled the water in ring, maintains head to stablize by air inlet pipe, this method can maintain head to stablize well, but its ponding for using Container bottom closing, it is not possible to add water, seeping container volume is bigger, is unfavorable for carrying, and it is big to be not suitable for water consumption Soil property.

Utility model content

Utility model aims to solve the above-mentioned technical problems in the prior art, provide a kind of riverbed infiltration Pilot system is applicable to the accurate detection of big horseshoe bend water percolating capacity.

In order to solve the above technical problems, the technical solution adopted in the utility model is as follows:

A kind of riverbed infiltration test system, including water supply device, determine water head equipment, leak device and overflow device, it is described Water supply device includes for bucket and being arranged in for the water pump in bucket, and described to determine water head equipment include overflow ladle, leak device packet The head pipe for including leakage bucket and being arranged on leakage bucket, overflow device includes spilling water bucket；The water pump is connected by water supplying pipe to be seeped Leaky bucket is provided with overflow plate, overflow plate and overflow ladle plane perpendicular in the overflow ladle, by overflow ladle be divided into two it is independent Cavity, the overflow plate height will be lower than the depth of overflow ladle, and there are two connectors for the overflow ladle bottom setting, respectively leak Connector and overflow adapter, the leakage connector and overflow adapter are connected to the leakage upper two independent cavitys of bucket respectively, the infiltration Drain terminals connect leakage bucket by leaky pipe, and overflow adapter connects spilling water bucket by overflow pipe, and the spilling water bucket is arranged at position Horizontal plane will lower than leakage bucket setting position at horizontal plane, it is described leakage bucket be upper end closed lower ending opening tubular knot Structure, leakage bucket open end extend down into test soil layer, and leakage bucket closed end is provided with head pipe fitting, and head pipe connects water Head tube connector.

In above-mentioned technical proposal, further, it is located at below leakage bucket in test soil layer and is provided with antiseep supplementary structure, The antiseep supplementary structure includes the annular cement layer below leakage bucket, and the open end setting for leaking bucket is mixed in annular Solidifying soil layer upper surface, leaks and is tightly connected between bucket open end and annular cement layer upper surface.

In above-mentioned technical proposal, further, buffer gear is provided in the leakage bucket, the buffer gear setting exists It tests on soil layer surface, plays the role of buffering between the water in leakage bucket and test soil layer.

In above-mentioned technical proposal, further, the buffer gear is the buffer board or slow that test soil layer surface is arranged in Rush frame, the surface area of the buffer board or bumper bracket is less than the surface area of test soil layer in leakage bucket.

In above-mentioned technical proposal, further, flowmeter is provided on the water supplying pipe.

In above-mentioned technical proposal, further, the water level for measuring spilling water inner bucket water position is provided on the spilling water bucket Measuring device.

In above-mentioned technical proposal, further, the overflow ladle is arranged on an elevating mechanism, and the elevating mechanism is adjustable Save the height of overflow ladle.

The utility model structure is simple, it can be achieved that the analogue measurement to big horseshoe bend water percolating capacity under different heights of water level is grasped Make, can guarantee the stability of simulation setting height of water level in test process well, can be held during the test into leakage bucket It is continuous to supply water, to reduce the volume of leakage bucket, facilitate the transport of each device of pilot system, there is good practical performance.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model.

In figure: 1, for bucket, 2, water pump, 3, leakage bucket, 4, overflow ladle, 5, spilling water bucket, 6, head pipe, 7, water supplying pipe, 8, Leaky pipe, 9, overflow pipe, 10, head pipe fitting, 11, overflow plate, 12, leakage connector, 13, overflow adapter, 14, water supply connector, 15, water outlet connector, 17, flowmeter, 18, annular cement layer, 19, buffer board.

Specific embodiment

The utility model is further described in the following with reference to the drawings and specific embodiments.

As shown in Figure 1, the riverbed infiltration test system in the present embodiment, including water supply device, determine water head equipment, leakage dress It sets and overflow device.Water supply device includes for bucket 1 and being arranged in for the water pump 2 in bucket, is entire test process for bucket Water needed for providing, is placed on the level land of testing site for bucket；It is described that determine water head equipment include overflow ladle 4 and elevating mechanism, Overflow ladle 4 is arranged on elevating mechanism, and the height of overflow ladle is adjusted in elevating mechanism；Leak device includes leakage bucket 3 and setting Head pipe 6 on leakage bucket, overflow device includes spilling water bucket 5.

Water pump 2 will be sent by water supplying pipe into leakage bucket by the connection leakage bucket 3 of water supplying pipe 7 for the water in bucket；Such as figure 1, leakage bucket 3 here is the tubular structure of upper end closed lower ending opening, and leakage bucket open end extends down into test soil layer, Leakage bucket closed end is provided with head pipe fitting 10, and head pipe 6 connects head pipe fitting 10.It is to fall to leak that bucket is leaked in the present embodiment Bucket structure, there are four fixed handles for welding at the open end of leakage bucket.It is also settable for being vented in leakage bucket closed end Exhaust fitting (not shown in figure 1).Head pipe uses PVC straight tube, leads between head pipe and the head pipe fitting for leaking bucket It crosses screw thread to be fixedly connected, be vertically arranged between test soil layer ground.It is respectively arranged with water supply connector 14 on leakage bucket 3 and goes out Water swivel 15, water supply connector 14 are connect with water supplying pipe 7, are provided with valve on water supplying pipe 7.

It is provided with overflow plate 11 in overflow ladle 4, overflow plate 11 and 4 plane perpendicular of overflow ladle, overflow plate 11 is by overflow ladle 4 Two independent cavitys are divided into, 11 height of overflow plate will be lower than the depth of overflow ladle 4 here；It is provided in 4 bottom of overflow ladle Two connectors, respectively leakage connector 12 and overflow adapter 13, the leakage connector 12 and overflow adapter 13 respectively with leak bucket Upper two independent cavity connections, the leakage connector 12 are connect by the connection leakage bucket 3 of leaky pipe 8 with the water outlet on leakage bucket First 15 connection, overflow adapter 13 connect spilling water bucket 5 by overflow pipe 9, are provided with valve on leaky pipe 8.

The horizontal plane that the horizontal plane at position will be arranged at position lower than leakage bucket 3 is arranged in spilling water bucket 5, can be used and is testing Point nearby digs placements hole for placing spilling water bucket, or topography is selected lower ground just to place.

It is located at below leakage bucket in test soil layer and is provided with antiseep supplementary structure, the antiseep supplementary structure includes Annular cement layer 18 positioned at 3 lower section of leakage bucket, the open end setting of leakage bucket 3 are seeped in 18 upper surface of annular cement layer 3 open end of leaky bucket and annular cement layer are tightly connected between 18 upper surface.

Buffer gear is provided in leakage bucket 3, the buffer gear setting is on test soil layer surface, in leakage bucket Water and test soil layer between play the role of buffering.Preferably, buffer gear is the buffer board that test soil layer surface is arranged in 19 or bumper bracket, the surface area of the buffer board 19 or bumper bracket is less than the surface area of test soil layer in leakage bucket.

Flowmeter 17 is provided on water supplying pipe 7；The water level for measuring spilling water inner bucket water position is provided on spilling water bucket 5 to survey Measure device.It can be realized by the measurement numerical value of the level measurement device on the flowmeter and spilling water bucket on record water supplying pipe to infiltration The detection of amount.

The process for carrying out infiltration test to riverbed using the pilot system is as follows:

1) testing site to be tested is selected, each device of system is transported to testing site position.

2) the annulus hole that can place leakage bucket is dug in testing site position, annulus cheats depth in 1.5m or so, in annulus It cheats bottom pouring concrete and forms annular cement layer, the height of concrete layer is 0.4-0.5m, with a thickness of 0.3-0.4m；In circle Buffer board is placed on the intermediate test soil layer surface in ring hole, then will be leaked bucket and is buckled to the test soil intermediate to annulus hole by open end On layer, the open end for leaking bucket is arranged on the upper surface of concrete layer.Between leakage bucket and the contact face of concrete layer It is sealed processing, here by the way of cement sealing, along leakage bucket open end periphery casting cement to leakage bucket opening Sealing is fixed between end and concrete layer, complete testing site position antiseep supplementary structure and leaks the installation of bucket, leakage After bucket installs, the water outlet connector and test soil layer flush on bucket are leaked.

In the present embodiment, leakage bucket uses floor space for 2m², high 1.5m inverted funnel tubular structure, set at the top of leakage bucket Set diameter be 110mm, for connect head pipe head pipe fitting and a diameter 50mm, with the water supply connector of valve, be used for Connect the exhaust joint that water supplying pipe and a diameter are 25mm；On leakage barrel side wall, set away from the leakage bucket closed end position 0.5m Set the water outlet connector with valve.Head pipe is installed on head pipe fitting, head pipe uses height for 4m, caliber 110m Pvc pipe.

3) in the placement hole for digging a deep about 1.5m away from leakage bucket setting position 4.2m or so place, spilling water bucket is placed into this and is put It sets in hole；A transparent glass tube with a scale is connected on spilling water bucket to read the water level in spilling water bucket.

4) bracket of adjustable overflow ladle height is set in overflow ladle neighbouring position, can be used with support bracket fastened branch ladder Or it is adjustable the elevating mechanism of fixed support height, overflow ladle is installed on fixed bracket, to be adjusted according to the requirement of test With the support bracket fastened height and position of setting.Overflow ladle is used to be arranged and guarantee to determine the height of head, and overflow ladle height is 0.3m, overflows The height of flowing plate is 0.2m, by the way that the simulation to different water levels is realized in overflow ladle setting at various height.

5) it is connected by pipeline for bucket, leakage bucket, overflow ladle and spilling water bucket.

Add water to head 0.5m is determined into leakage bucket by water pump when testing, stops adding when overflow ladle starts spilling water Water；A certain amount of water is added to fixed level scale, as initial water level in for bucket and spilling water bucket；Add into leakage bucket Water simultaneously starts timing, using the moment as 0 moment, is recorded simultaneously in the inflow and spilling water bucket that leak bucket at regular intervals Water level value, inflow, spilling water amount and the water percolating capacity of unit of account time, until stopping test when water percolating capacity is relatively stable.

By adjust overflow ladle height and position, can be respectively completed 0.5m, 1.0m, 1.5m, 2.0m, 2.5m, 3.0m, The infiltration test of the various different head heights such as 3.5m, 4.0m tests hanging down for soil layer or rock stratum to measure under different head heights To leakage ability.

After the completion of test, take out leakage bucket, from leakage bucket in intermediate soil layer in respectively surface layer, 0.1m, 0.3m, Stratified Sampling at 0.5m, 1.0m and 1.5m measures soil layer point.

The description and the appended drawings of the utility model be considered as it is illustrative and not restrictive, the utility model basis On, for those skilled in the art according to disclosed technology contents, not needing creative labor can be to some of technology Feature makes some replacements and deformation, within the protection scope of the present utility model.

Claims (7)

1. riverbed infiltration test system, it is characterised in that: including water supply device, determine water head equipment, leak device and overflow device, The water supply device includes for bucket and being arranged in for the water pump in bucket, and described determine water head equipment include overflow ladle, and leakage fills It sets including leakage bucket and the head pipe being arranged on leakage bucket, overflow device includes spilling water bucket；The water pump is connected by water supplying pipe Connect leakage bucket, be provided with overflow plate in the overflow ladle, overflow plate and overflow ladle plane perpendicular, by overflow ladle be divided into two solely Vertical cavity, the overflow plate height will be lower than the depth of overflow ladle, and there are two connectors for the overflow ladle bottom setting, respectively Connector and overflow adapter are leaked, the leakage connector and overflow adapter are connected to the leakage upper two independent cavitys of bucket respectively, institute It states leakage connector and leakage bucket is connected by leaky pipe, overflow adapter connects spilling water bucket by overflow pipe, and position is arranged in the spilling water bucket The horizontal plane for setting place will be the tubular of upper end closed lower ending opening lower than the horizontal plane at leakage bucket setting position, the leakage bucket Structure, leakage bucket open end extend down into test soil layer, and leakage bucket closed end is provided with head pipe fitting, the connection of head pipe Head pipe fitting.

2. infiltration test system in riverbed according to claim 1, it is characterised in that: be located at below leakage bucket in test soil layer It is provided with antiseep supplementary structure, the antiseep supplementary structure includes the annular cement layer below leakage bucket, leakage The open end setting of bucket leaks the company of sealing between bucket open end and annular cement layer upper surface in annular cement layer upper surface It connects.

3. infiltration test system in riverbed according to claim 1, it is characterised in that: be provided with buffer in the leakage bucket Structure, the buffer gear setting play the work of buffering on test soil layer surface between the water in leakage bucket and test soil layer With.

4. infiltration test system in riverbed according to claim 3, it is characterised in that: the buffer gear is that setting is being tested The surface area of the buffer board or bumper bracket on soil layer surface, the buffer board or bumper bracket is less than the table of test soil layer in leakage bucket Face area.

5. infiltration test system in riverbed according to claim 1, it is characterised in that: be provided with flow on the water supplying pipe Meter.

6. riverbed infiltration test system according to claim 1 or 5, it is characterised in that: be arranged on the spilling water bucket useful Level measurement device in measurement spilling water inner bucket water position.

7. infiltration test system in riverbed according to claim 1, it is characterised in that: the overflow ladle is arranged in an elevator On structure, the height of overflow ladle is adjusted in the elevating mechanism.