CAJ | 학술논문

河南三门峡市山口水库复建工程料场和溢洪道开挖的土料渗透系数较大,无法满足心墙坝或者斜墙坝防渗要求。针对上述难点,设计选用了分区土石坝。该方案通过对大坝进行合理分区,将坝体分为土质防渗体区和堆石区,中间设过渡层、反滤层,并具体提出土质防渗体区土料渗透系数不得高于5×10-5 cm/s,使大坝设计满足了规范的相关要求。该分区坝可以充分利用溢洪道开挖料,不仅可以减少工程弃渣量,还可以大幅降低工程投资。
하남삼문협시산구수고복건공정료장화일홍도개알적토료삼투계수교대,무법만족심장패혹자사장패방삼요구。침대상술난점,설계선용료분구토석패。해방안통과대대패진행합리분구,장패체분위토질방삼체구화퇴석구,중간설과도층、반려층,병구체제출토질방삼체구토료삼투계수불득고우5×10-5 cm/s,사대패설계만족료규범적상관요구。해분구패가이충분이용일홍도개알료,불부가이감소공정기사량,환가이대폭강저공정투자。
Shankou Reservoir Reconstruction Project is located in Sanmenxia City, Henan Province, where the permeability of excavated soil from the quarry field and spillway is not qualified for the construction of core wall dam and inclined wall dam, so a partitioned earth rock dam is proposed. By dividing the dam into different zones reasonably, the dam body is partitioned as soil anti-seepage zone and rockfill zone, between which the transition layer and filter layer are arranged. And the soil permeability in the soil anti-seepage zone is required to be less than 5 × 10 -5 cm/s, so as to meet the design standard. The partitioned earth rock fill dam can make full use of excavated material from spillway, which reduced the amount of engineering spoil soil and the engineering investment.