A PRELIMINARY STUDY ON A NEW MODEL OF CALCULATING HYDROGEOLOGICAL PARAMETERS (Rs, K, R) BY USING q-s RELATIONSHIPS OF PUMPING DEPRESSION CURVE OF STEADY FLOW

According a result of a deep groundwater balance budget, the averageannul yield from the deep groundwater in the studied area is about 4.7012×108m3/a betweenthe years of 1991 and 2000, among which leakage shares 38.2%, released water from pressedclay 41.3%, literal flow 14.9% , elasticity released water 5.6% and the former two itemsconstitute the main parts of pumping.

The pumping in the 2nd plan is 9029.5 m3/d with 3 Km' corridor and the groundwater level steadily drops and the range of drop averagely is about 0.5m in the west of the river.

The pumping in the 3rd plan is 5820.4 m3/d with 3 Km' corridor and the pumping is not enough for the demand of the project, this has great effect on the groundwater level of the west and the range of drop averagely is about 0.65m.

One model is established with 15 wells' pumping water quantity asdecision-making variable. Calculating the model, the results is exploiting 11 wells atthe same time which are 1,3,4,5,6,7,8,10,11,14,15and so on and the pumpingwater quantity is separately 8317.39,7728.83,2893.22,13971.93,13683.91,3030.55,3020.67,15652.94,4433.44,21815.74,and 5451.79 m3/d.

The main technology for high power fiber lasers, including laser diode beam shaping, fiber laser pumping techniques, and amplification systems, are discussed in detail.

The heat transfer enhancement under identical pumping power condition for the attack angle of 30° is larger than that for the attack angle of 45° either for staggered or for aligned tube bank arrangement.

Meanwhile, principles of several typical pumping methods such as mechanical, electromagnetic or peristaltic pumps will be illustrated.

pumping power per unit heat transfer area were plotted.

Proton Pumping in Growing Part of Maize Root: Its Correlation with 14-3-3 Protein Content and Changes in Response to Osmotic Str

Since the year 1886, the Dupuit-Forchheimer theory and formulas for gravityflows toward wells and galleries have been broadly used in all nations of theworld. In these formulas, assumptions are made for underground flows fromfarther distances in horizontal directions at a constant rate toward wells andgalleries. According to the author's analysis, these assumptions are not consistentwith the actual conditions of flow, hence the formulas obtained therefrom are notrational, and the employment of these formulas...

Since the year 1886, the Dupuit-Forchheimer theory and formulas for gravityflows toward wells and galleries have been broadly used in all nations of theworld. In these formulas, assumptions are made for underground flows fromfarther distances in horizontal directions at a constant rate toward wells andgalleries. According to the author's analysis, these assumptions are not consistentwith the actual conditions of flow, hence the formulas obtained therefrom are notrational, and the employment of these formulas to investigate the general effectof surface drop or well diametre upon yield is devoid of rational foundations. According to the author's analysis, the flows toward wells or galleries areactually supplied vertically by draining the stored water above the free surface inthe course of its descending and enlarging. As the drainage of gravity water fromthe pores of soil particles in order to reduce the water content to that of filmshells takes one to two days, as the capillary water columns are interconnectedand mutually supplied sidewise, this vertical supply of water may maintain quite along time, yet the flow may not be absolutely steady. As regards vertical supply of water with unsteady regimen, equations of freesurface for flow pattern near galleries are deduced, corresponding to the Boussinesqpartial differential equation. Besides, the author has derived simplified equationsfor computing flows into wells and galleries. The latter, in comparison with theDupuit-Forchheimer formulas, gives a higher yield, while the free surface curve isreasonably tangent to the horizontal water table at a point which moves fartheraway as time goes on. J. Kozeny first pointed out the phenomenon that the water depth in the groundon the wall will not be further lowered when it reaches one half of the depthbefore pumping. The author hereby proposes a theoretical proof of it on the basisof theorem of least work. Based upon these theories, formulas are proposed for maximum possible yieldof wells and galleries dug to horizontal impervious strata, to be used in prelimi-nary estimations for hydro-geological workers.

Change of ground water level gives rise to ground deformation is concerned in this paper. It describes several actual experiments in-situ of pumping water from wells, indicating the relation between the variation of elevation and the pumping, with respect to time and location. Around the pumping wells and within the limit of a funnel-shaped ground water surface, not only vertical movement, but also horizontal compression and dilatation can be observed. A preliminary discussion has been made...

Change of ground water level gives rise to ground deformation is concerned in this paper. It describes several actual experiments in-situ of pumping water from wells, indicating the relation between the variation of elevation and the pumping, with respect to time and location. Around the pumping wells and within the limit of a funnel-shaped ground water surface, not only vertical movement, but also horizontal compression and dilatation can be observed. A preliminary discussion has been made in connection with the distinction between ground deformation caused by ground water change and other factors.

There were altogether 590 felt microearthquakes which took place in Yagong-tang mineral area of Shuikoushan region. These earthquakes were characterized by quite shallow depth of focuss (for 94% of them: h ≤ 300 m), extremely small magnitude (ML ≤0.2), and the close relationship between the distribution of the shock space, time and strength and the drainage of the mineral region. These earthquakes were the result of the sudden motion of the blocks that were in dynamic equilibrium and were induced by water-pumping....

There were altogether 590 felt microearthquakes which took place in Yagong-tang mineral area of Shuikoushan region. These earthquakes were characterized by quite shallow depth of focuss (for 94% of them: h ≤ 300 m), extremely small magnitude (ML ≤0.2), and the close relationship between the distribution of the shock space, time and strength and the drainage of the mineral region. These earthquakes were the result of the sudden motion of the blocks that were in dynamic equilibrium and were induced by water-pumping. The region for the occurrence of such earthquakes must have the following factors: the developed former structure plane; a lot of strain energy stored in the divided blocks; a considerably large dropping funnel and the space for the motion of the blocks formed when the region is being pumped. According to the above three factors, we can forecast whether or not the draining of the metalliferous mines would induce earthquakes and estimate the future earthquake risk as well.